JP2007004099A - Surface light source device and color liquid crystal display device assembly - Google Patents

Abstract

Provided is a color liquid crystal display device assembly in which a planar light source device having a high effective utilization efficiency of luminous flux is incorporated.
A transmissive color liquid crystal display device 10A made of a front panel, a rear panel 70, and a liquid crystal material, and a color liquid crystal display device 10A arranged from the rear panel side. In the color liquid crystal display device assembly including the planar light source device 20A having a light source for irradiation, the light source 21 is a first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color. Corresponding first primary color light (for example, blue) is emitted, and the portion of the rear panel 70 facing the planar light source device 20A is excited by energy rays (first primary color light) emitted from the light source 21. A second primary color light emitting layer 30G that emits second primary color light (green) and a third primary color light emitting layer 30R that emits third primary color light (red) are formed.
[Selection] Figure 1

Description

  The present invention relates to a planar light source device and a color liquid crystal display device assembly.

  As a color liquid crystal display device assembly, a color liquid crystal display device in which a liquid crystal material is sandwiched between two panels laminated so that a transparent glass substrate on which a transparent electrode, an alignment film and the like are laminated is opposed, 2. Description of the Related Art A color liquid crystal display device assembly that is arranged below a color liquid crystal display device and includes a planar light source device that supplies illumination light to the color liquid crystal display device is well known.

  As the planar light source device, two types of planar light source devices (backlights), that is, a direct type planar light source device disclosed in, for example, Japanese Utility Model Laid-Open No. 63-187120 and Japanese Patent Application Laid-Open No. 2002-277870, An edge light type (also called side light type) planar light source device disclosed in 2002-131552 is well known. As shown in the conceptual diagram in FIG. 9A, the direct type planar light source device is disposed in the light source 121 disposed in the housing 123 and the portion of the housing located below the light source 121. A reflection member 124 that reflects the light emitted from the light source 121 upward, and a housing opening located above the light source 121, and passes through while diffusing the light emitted from the light source 121 and the light reflected from the reflection member 124. It is comprised from the diffuser plate 122 to be made. On the other hand, the edge light type planar light source device includes a light guide plate 150 and a light source 141 composed of a lamp disposed on a side surface of the light guide plate 150 as shown in a conceptual diagram in FIG. . A reflection member 142 is disposed below the light guide plate, and a diffusion sheet 143 and a prism sheet 144 are disposed above the light guide plate.

  The light source is, for example, a cold cathode fluorescent lamp having an inner diameter of 2.4 mm, and emits white light. More specifically, in a cold cathode fluorescent lamp, a mixed rare gas such as neon gas or argon is sealed inside, or mercury is diffusely sealed. Then, the ultraviolet light from the mixed rare gas or mercury atom excited due to the glow discharge is applied to the inner surface of the glass tube constituting the fluorescent lamp, the red light emitting phosphor particles, the green light emitting phosphor particles, and the blue light emitting fluorescence. The body particles are excited, and white color is obtained by the emission color from these phosphor particles.

Japanese Utility Model Sho 63-187120 JP 2002-277870 A JP2002-131552

  By the way, in a direct type planar light source device, white light is emitted from a fluorescent lamp. For example, when displaying red in a color liquid crystal display device, the white light is passed through a color filter and the white light is converted into red. The green and blue constituting the white light emitted from the fluorescent lamp are discarded. Therefore, the effective utilization efficiency of the luminous flux emitted from the fluorescent lamp (the proportion of the light emitted from the fluorescent lamp that is guided to the color liquid crystal display device and emitted from the color liquid crystal display device) is low, and the luminous flux is effective. It is desired to further increase the utilization efficiency.

  Accordingly, an object of the present invention is to provide a planar light source device (backlight) having a high effective utilization efficiency of light flux, and a color liquid crystal display device assembly incorporating such a planar light source device.

In order to achieve the above object, a color liquid crystal display device assembly according to the first aspect of the present invention comprises:
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device (more specifically, a direct-type planar light source device) disposed opposite to the rear panel and having a light source that irradiates the color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The light source emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color,
In the part of the rear panel facing the planar light source device,
(A) It is formed on a region corresponding to a subpixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and is composed of second primary color light emitting particles that emit the second primary color light, and is emitted from the light source. A second primary color light emitting layer that emits second primary color light when excited by the generated energy rays, and
(B) It is formed on a region corresponding to a sub-pixel that emits the third primary color light corresponding to the third primary color corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer that emits a third primary color light when excited by the generated energy rays;
Is formed.

  In order to achieve the above object, the color liquid crystal display device assembly according to the second aspect of the present invention is a rear panel portion in which the second primary color light emitting layer and the third primary color light emitting layer face the planar light source device. It is characterized by having the same configuration and structure as the color liquid crystal display device assembly according to the first aspect of the present invention except that it is formed on the front panel.

In order to achieve the above object, a color liquid crystal display device assembly according to a third aspect of the present invention comprises:
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device that irradiates the color liquid crystal display device from the rear panel side (more specifically, a direct-type planar light source device),
A color liquid crystal display device assembly comprising:
The planar light source device
(A) A light source that is arranged to face the rear panel and emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color,
(B) a support member disposed between the rear panel and the light source;
(C) formed on the region of the support member corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and composed of second primary color light emitting particles that emit the second primary color light; A second primary color light emitting layer that emits second primary color light when excited by energy rays emitted from a light source; and
(D) formed on the region of the support member corresponding to the sub-pixel that emits the third primary color light corresponding to the third primary color of the color liquid crystal display device, and composed of the third primary color light emitting particles that emit the third primary color light; A third primary color light emitting layer that emits a third primary color light when excited by energy rays emitted from a light source;
It is characterized by comprising.

In order to achieve the above object, a color liquid crystal display device assembly according to a fourth aspect of the present invention comprises:
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device (more specifically, an edge light type planar light source device) that includes a light guide plate and a light source and irradiates a color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The light source emits first primary color light corresponding to the first primary color among the three primary colors composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate,
In the part of the rear panel facing the planar light source device,
(A) It is formed on a region corresponding to a subpixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and is composed of second primary color light emitting particles that emit the second primary color light, and is emitted from the light source. A second primary color light emitting layer that emits second primary color light when excited by the generated energy rays, and
(B) It is formed on a region corresponding to a sub-pixel that emits the third primary color light corresponding to the third primary color corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer that emits a third primary color light when excited by the generated energy rays;
Is formed.

  In order to achieve the above object, a color liquid crystal display device assembly according to a fifth aspect of the present invention is a rear panel portion in which the second primary color light emitting layer and the third primary color light emitting layer face the planar light source device. The color liquid crystal display device assembly according to the fourth aspect of the present invention has the same configuration and structure except that it is formed on the front panel.

In order to achieve the above object, a color liquid crystal display device assembly according to a sixth aspect of the present invention comprises:
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device that irradiates the color liquid crystal display device from the rear panel side (more specifically, an edge light type planar light source device),
A color liquid crystal display device assembly comprising:
The planar light source device
(A) a light guide plate,
(B) a light source that emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate;
(C) A second light source that emits the second primary color light and is formed on a region of the light guide plate facing the rear panel corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device. A second primary color light emitting layer composed of two primary color light emitting particles and excited by energy rays emitted from a light source to emit second primary color light; and
(D) A third light emitting the first primary color light, which is formed on the region of the light guide plate facing the rear panel corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer composed of three primary color light emitting particles, which is excited by energy rays emitted from a light source and emits a third primary color light;
It is characterized by comprising.

The planar light source device according to the first aspect of the present invention for achieving the above-described object,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A planar light source device (more specifically, a direct-type planar light source device) that irradiates a transmissive color liquid crystal display device comprising:
(A) A light source that is arranged to face the rear panel and emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color,
(B) a support member disposed between the rear panel and the light source;
(C) formed on the region of the support member corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and composed of second primary color light emitting particles that emit the second primary color light; A second primary color light emitting layer that emits second primary color light when excited by energy rays emitted from a light source; and
(D) formed on the region of the support member corresponding to the sub-pixel that emits the third primary color light corresponding to the third primary color of the color liquid crystal display device, and composed of the third primary color light emitting particles that emit the third primary color light; A third primary color light emitting layer that emits a third primary color light when excited by energy rays emitted from a light source;
It is characterized by comprising.

The planar light source device according to the second aspect of the present invention for achieving the above object is
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A planar light source device (more specifically, an edge light type planar light source device) that irradiates a transmissive color liquid crystal display device comprising:
(A) a light guide plate,
(B) a light source that emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate;
(C) A second light source that emits the second primary color light and is formed on a region of the light guide plate facing the rear panel corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device. A second primary color light emitting layer composed of two primary color light emitting particles and excited by energy rays emitted from a light source to emit second primary color light; and
(D) A third light emitting the first primary color light, which is formed on the region of the light guide plate facing the rear panel corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer composed of three primary color light emitting particles, which is excited by energy rays emitted from a light source and emits a third primary color light;
It is characterized by comprising.

  In the color liquid crystal display device assembly according to the first to sixth aspects of the present invention (hereinafter, these may be collectively referred to as the color liquid crystal display device assembly of the present invention), the front The panel may be further provided with a color filter. The color filter may be provided on the rear panel. Thus, by providing the color filter, the color purity in the color liquid crystal display device can be further improved. In the color liquid crystal display device assembly according to the second or fifth aspect of the present invention, the second primary color light emitting layer and the third primary color light emitting layer formed on the front panel are formed by color filters. It is desirable that it is covered or located on the liquid crystal material side of the color filter.

  The color filter is generally composed of a black matrix (for example, made of chromium) for shielding a gap between the colored patterns and a red, green, and blue colored layer facing each pixel. It is produced by a pigment dispersion method, a printing method, an electrodeposition method or the like. The colored layer is made of, for example, a resin material, or is colored with a pigment. Examples of the pixel pattern of the colored layer include a delta arrangement, a stripe arrangement, a diagonal arrangement, and a rectangle arrangement.

In the color liquid crystal display device assembly according to the first to sixth aspects of the present invention including the above preferred embodiments, the planar light source according to the first to second aspects of the present invention is also provided. The device is not limited,
The light source comprises a light emitting diode (LED) that emits blue light as the first primary color light,
The second primary color and the third primary color are green and red, respectively.
The energy ray emitted from the light source that excites the second primary color light emitting particles and the third primary color light emitting particles constituting the second primary color light emitting layer and the third primary color light emitting layer is configured to be the blue light or the ultraviolet light. can do.

  The number of light emitting diodes (LEDs) is essentially arbitrary and may be determined based on specifications required for the planar light source device. Further, instead of the light emitting diode, a fluorescent lamp or a semiconductor laser that emits blue light as the first primary color light may be employed. In this case, the number of fluorescent lamps or semiconductor lasers is essentially arbitrary, What is necessary is just to determine based on the specification requested | required of a planar light source device.

The color liquid crystal display device assembly according to the first to sixth aspects of the present invention including the various preferred embodiments described above, and the planar light source device according to the first to second aspects of the present invention ( Hereinafter, these may be collectively referred to simply as the present invention), and when the second primary color light emitting particles or the third primary color light emitting particles are red light emitting particles, the red light emitting particles are composed of red light emitting phosphor particles. When the second primary color light emitting particle or the third primary color light emitting particle is a green light emitting particle, the green light emitting particle is composed of a green light emitting phosphor particle, and the second primary color light emitting particle or the third primary color light emitting particle is a blue light emitting particle. The blue light emitting particles can be composed of blue light emitting phosphor particles. Here, as a material constituting the red-emitting phosphor particles, Y ₂ O ₃ : Eu, YVO ₄ : Eu, Y (P, V) O ₄ : Eu, 3.5MgO · 0.5MgF ₂ · Ge ₂ : Mn , CaSiO ₃ : Pb, Mn, Mg ₆ AsO ₁₁ : Mn, (Sr, Mg) ₃ (PO ₄ ) ₃ : Sn, La ₂ O ₂ S: Eu, Y ₂ O ₂ S: Eu, Furthermore, as a preferred red phosphor for blue excitation, (ME: Eu) S [wherein “ME” means at least one kind of atom selected from the group consisting of Ca, Sr and Ba. The same applies to the above], (M: Sm) _x (Si, Al) ₁₂ (O, N) ₁₆ [wherein “M” represents at least one atom selected from the group consisting of Li, Mg and Ca. refers to, also applies to the _{following], ME 2 Si 5 N 8} : Eu, (Ca Eu) SiN _2, (Ca: can be mentioned Eu) AlSiN _3. Further, as materials constituting the green light emitting phosphor particles, LaPO ₄ : Ce, Tb, BaMgAl ₁₀ O ₁₇ : Eu, Mn, Zn ₂ SiO ₄ : Mn, MgAl ₁₁ O ₁₉ : Ce, Tb, Y ₂ SiO ₅ : Ce, Tb, MgAl ₁₁ O ₁₉ : CE, Tb, Mn can be mentioned. Further, as preferred green phosphors for blue excitation, (ME: Eu) Ga ₂ S ₄ , (M: RE) _x ( Si, Al) ₁₂ (O, N) ₁₆ [where “RE” means Tb and Yb], (M: Tb) _x (Si, Al) ₁₂ (O, N) ₁₆ , (M: Yb ) _X (Si, Al) ₁₂ (O, N) ₁₆ . Furthermore, as a material constituting the blue light emitting phosphor particles, BaMgAl ₁₀ O ₁₇ : Eu, BaMg ₂ Al ₁₆ O ₂₇ : Eu, Sr ₂ P ₂ O ₇ : Eu, Sr ₅ (PO ₄ ) ₃ Cl: Eu, (Sr, Ca, Ba, Mg) ₅ (PO ₄ ) ₃ Cl: Eu, CaWO ₄ , CaWO ₄ : Pb can be mentioned. Further, in some cases, it may be configured to emit cyan, and in this case, green phosphor particles (for example, LaPO ₄ : Ce, Tb, BaMgAl ₁₀ O ₁₇ : Eu, Mn, Zn ₂ SiO ₄ : _{Mn, MgAl 11 O 19: Ce} , Tb, Y 2 SiO 5: Ce, Tb, MgAl 11 O 19: CE, Tb, Mn) and blue light emitting phosphor particles _{(e.g., BaMgAl 10 O 17: Eu,} BaMg 2 Al ₁₆ O ₂₇ : Eu, Sr ₂ P ₂ O ₇ : Eu, Sr ₅ (PO ₄ ) ₃ Cl: Eu, (Sr, Ca, Ba, Mg) ₅ (PO ₄ ) ₃ Cl: Eu, CaWO ₄ , CaWO ₄ : Pb) may be used.

  However, the luminescent particles are not limited to luminescent fluorescent particles. For example, in an indirect transition type silicon-based material, the carrier wave function is localized in order to efficiently convert carriers into light as in the direct transition type. In addition, a light emitting particle using a quantum well structure such as a two-dimensional quantum well structure, a one-dimensional quantum well structure (quantum wire), or a zero-dimensional quantum well structure (quantum dot) using a quantum effect can be given. It is known that the rare earth atoms added to the material emit light sharply due to the transition in the shell, and examples thereof include luminescent particles to which such a technique is applied.

  Examples of the arrangement pattern of the first primary color light transmitting region (first primary color light transmitting region), the second primary color light emitting layer, and the third primary color light emitting layer include a delta arrangement, a stripe arrangement, a diagonal arrangement, and a rectangle arrangement.

  In the color liquid crystal display device assembly according to the third aspect of the present invention including the various preferred embodiments described above, the second primary color light emitting layer and the third primary color light emitting layer are not limited, It is preferable that the structure is formed on the surface of the support member facing the light source.

  The support member in the direct type planar light source device may also serve as a so-called diffusion plate.

  In the present invention, more specifically, the front panel constituting the transmissive color liquid crystal display device is provided on, for example, a first substrate made of a glass substrate or a silicon substrate, and an inner surface of the first substrate. It is composed of a transparent first electrode (also called a common electrode, made of, for example, ITO) and a polarizing film (polarizing plate) provided on the outer surface of the first substrate. Further, if necessary, the front panel constituting the transmissive color liquid crystal display device is provided with a color filter coated on the inner surface of the first substrate with an overcoat layer made of acrylic resin or epoxy resin, A transparent first electrode is formed on the overcoat layer. An alignment film is formed on the transparent first electrode. Alternatively, if necessary, in the front panel constituting the transmissive color liquid crystal display device, an overcoat layer made of an acrylic resin or an epoxy resin is formed on the polarizing film (polarizing plate) on the outer surface of the first substrate. A coated color filter is provided. On the other hand, the rear panel constituting the transmissive color liquid crystal display device more specifically includes, for example, a second substrate made of a glass substrate or a silicon substrate, and a switching element formed on the inner surface of the second substrate. A transparent second electrode (also referred to as a pixel electrode, made of, for example, ITO) whose conduction / non-conduction is controlled by a switching element, and a polarizing film (polarizing plate) provided on the outer surface of the second substrate It is configured. An alignment film is formed on the entire surface including the transparent second electrode. Various members and liquid crystal materials constituting these transmissive color liquid crystal display devices can be composed of known members and materials. Examples of the switching element include a three-terminal element such as a MOS type FET and a thin film transistor (TFT) formed on a single crystal silicon semiconductor substrate, and a two-terminal element such as an MIM element, a varistor element, and a diode.

  In the present invention, depending on the configuration, the light from the light emitting layer or the light source passes through the support member or the light guide plate. Therefore, a material transparent to the light from the light emitting layer or the light source, that is, the light emitting layer or the light source is emitted. It is preferable that the support member or the light guide plate is made of a material that does not absorb much light. Specifically, as a material constituting the support member or the light guide plate, for example, glass, plastic material (for example, PMMA, polycarbonate resin, acrylic resin, amorphous polypropylene resin, styrene resin including AS resin) ). In the present invention, depending on the configuration, ultraviolet light may pass through the support member or the light guide plate. In such a case, the support member or the light guide plate is transparent to the ultraviolet light emitted from the light source. It is preferable that the material is made of a material that does not absorb much ultraviolet light emitted from the light source and that is not damaged by ultraviolet irradiation. Specifically, examples of the material constituting the support member or the light guide plate include quartz glass, optical glass such as BK-7, silicone resin, and the like.

  The light guide plate includes a first surface (bottom surface), a second surface (top surface) facing the first surface, a first side surface, a second side surface, a third side surface facing the first side surface, and a second side surface. It has the 4th side which countered. As a more specific shape of the light guide plate, a wedge-shaped truncated quadrangular pyramid shape can be cited as a whole. In this case, two opposing side surfaces of the truncated quadrangular pyramid correspond to the first surface and the second surface. The bottom surface of the truncated quadrangular pyramid corresponds to the first side surface. And it is desirable for the surface part of the 1st surface (bottom surface) to provide the convex part and / or the recessed part. The first primary color light is incident from the first side surface of the light guide plate, and the first primary color light is emitted from the second surface (top surface) toward the color liquid crystal display device. Here, the second surface of the light guide plate may be smooth (that is, may be a mirror surface), or may be provided with a blast texture having a diffusion effect (that is, a fine uneven surface).

  It is desirable that the first surface (bottom surface) of the light guide plate is provided with a convex portion and / or a concave portion. That is, it is desirable that the first surface of the light guide plate is provided with a convex portion, or a concave portion, or an uneven portion. When the concavo-convex portion is provided, the concave portion and the convex portion may be continuous or discontinuous. The convex portion and / or concave portion provided on the first surface of the light guide plate is a continuous convex portion and / or concave portion extending along a direction forming a predetermined angle with the first primary color light incident direction to the light guide plate. It can be. In such a configuration, as a continuous convex shape or concave cross-sectional shape when the light guide plate is cut in a virtual plane perpendicular to the first surface in the first primary color light incident direction to the light guide plate, Any smooth curve including triangles; any square including square, rectangle, trapezoid; any polygon; circle, ellipse, parabola, hyperbola, catenary, etc. can be exemplified. The direction forming a predetermined angle with the first primary color light incident direction on the light guide plate means a direction of 60 degrees to 120 degrees when the first primary color light incident direction on the light guide plate is 0 degrees. The same applies to the following. Alternatively, the convex portion and / or the concave portion provided on the first surface of the light guide plate is a discontinuous convex portion and / or extending along a direction forming a predetermined angle with the first primary color light incident direction to the light guide plate. It can be set as the structure which is a recessed part. In such a configuration, as a discontinuous convex shape or concave shape, a pyramid, a cone, a cylinder, a polygonal column including a triangular column or a quadrangular column, a part of a sphere, a part of a spheroid, a rotating parabola Various smooth curved surfaces such as a part of a body and a part of a rotating hyperbola can be exemplified. In the light guide plate, in some cases, a convex portion or a concave portion may not be formed on the peripheral portion of the first surface. Further, the first primary color light emitted from the light source and incident on the light guide plate collides with a convex portion or a concave portion formed on the first surface of the light guide plate and is scattered, but is provided on the first surface of the light guide plate. The height, depth, pitch, and shape of the convex or concave portions may be constant or may be changed as the distance from the light source increases. In the latter case, for example, the pitch of the convex portion or the concave portion may be made finer as the distance from the light source increases. Here, the pitch of the convex portion or the pitch of the concave portion means the pitch of the convex portion or the pitch of the concave portion along the first primary color light incident direction to the light guide plate.

  In the planar light source device including the light guide plate, it is desirable to dispose the reflection member so as to face the first surface of the light guide plate. A color liquid crystal display device is disposed to face the second surface of the light guide plate. The first primary color light emitted from the light source is incident on the light guide plate from the first side surface of the light guide plate (for example, the surface corresponding to the bottom surface of the truncated quadrangular pyramid) and collides with the convex portion or the concave portion of the first surface. Scattered, emitted from the first surface, reflected by the reflecting member, reentered the first surface, emitted from the second surface, and irradiates the color liquid crystal display device. For example, a diffusion sheet or a prism sheet may be disposed between the color liquid crystal display device and the second surface of the light guide plate. Further, the first primary color light emitted from the light source may be guided directly to the light guide plate or indirectly guided to the light guide plate. In the latter case, for example, an optical fiber may be used.

  In the present invention, not the white light is emitted from the light source, but the first primary color light (in some cases, in addition, ultraviolet rays) is emitted. Unlike the conventional technology, the second primary color light emitting layer and the third primary color light emitting layer that emit (emit) the second primary color light and the third primary color light are provided separately from the light source. Therefore, unlike the prior art, there is no need for a process of obtaining light of a desired color by passing white light emitted from a light source through a color filter arranged in a color liquid crystal display device, and the light generated by the light source is generated. The effective utilization efficiency of the first primary color light or the like can be improved, and as a result, the power consumption of the color liquid crystal display device assembly can be reduced. In addition, the degree of freedom in selecting the light emitting particles constituting the second primary color light emitting layer and the third primary color light emitting layer and the degree of freedom in designing the light emission intensity of each light emitting layer are increased. Can be obtained.

  Hereinafter, the present invention will be described based on examples with reference to the drawings.

  Example 1 relates to a color liquid crystal display device assembly according to a first aspect of the present invention. A conceptual diagram of the color liquid crystal display device assembly of Example 1 is shown in FIG. 1A, and a schematic partial sectional view of the color liquid crystal display device of Example 1 is shown in FIG. 4 or FIG.

The color liquid crystal display device assembly of Example 1 is
(A) a front panel 60 having a transparent first electrode 64;
(B) a rear panel 70 having a transparent second electrode 74, and
(C) a liquid crystal material 80 disposed between the front panel 60 and the rear panel 70;
A transmissive color liquid crystal display device 10A comprising:
(D) a planar light source device (direct backlight) 20A having a light source 21;
It has.

Here, the light source 21 is disposed facing (facing) the rear panel 70 and irradiates the color liquid crystal display device 10A from the rear panel side. The light source 21 is a first primary color light (corresponding to a first primary color (blue) among the three primary colors composed of the first primary color (blue), the second primary color (green), and the third primary color (red)). It comprises a light emitting diode (LED) that emits a wavelength λ ₁ : 454 nm.

  The planar light source device 20 </ b> A is attached to the housing 23, the light source 21 disposed in the housing 23, and the opening of the housing 23 positioned above the light source 21, and the first primary color (blue color) from the light source 21. ) Is diffused and is supported by a support member 22 that functions as a diffusion plate. Here, the support member 22 is transparent to the first primary color (blue) emitted from the light source 21, that is, a material that does not absorb much of the first primary color (blue) emitted from the light source 21. Specifically, it is made from a plastic material (for example, PMMA, polycarbonate resin, acrylic resin, amorphous polypropylene resin, styrene resin including AS resin). The same applies to Example 2 and Example 3 described later.

  More specifically, as shown in FIG. 4, the front panel 60 includes, for example, a first substrate 61 made of a glass substrate, and a transparent first electrode (common electrode) provided on the inner surface of the first substrate 61. Also, it is composed of, for example, an ITO 64 and a polarizing film (or polarizing plate) 66 provided on the outer surface of the first substrate 61. In some cases, as shown in FIG. 5, a color filter 62 covered with an overcoat layer 63 made of acrylic resin or epoxy resin is provided on the inner surface of the first substrate 61. You may have the structure in which the transparent 1st electrode 64 was formed. Regardless of the configuration, the alignment film 65 is formed on the transparent first electrode 64.

  On the other hand, the rear panel 70 constituting the transmissive color liquid crystal display device more specifically includes, for example, a second substrate 71 made of a glass substrate and a switching element formed on the inner surface of the second substrate 71. (Specifically, a thin film transistor or TFT) 72, a transparent second electrode (also referred to as a pixel electrode, made of, for example, ITO) 74 whose conduction / non-conduction is controlled by the switching element 72, and a second substrate 71 And a polarizing film (or a polarizing plate) 76 provided on the outer surface. An alignment film 75 is formed on the entire surface including the transparent second electrode 74. The front panel 60 and the rear panel 70 are joined to each other at their outer peripheral portions via a sealing material (not shown). Note that the switching element 72 is not limited to a TFT, and may be composed of, for example, an MIM element. Reference numeral 77 in the drawing is an insulating layer provided between the switching element 72 and the switching element 72.

  Various members and liquid crystal materials constituting these transmissive color liquid crystal display devices can be composed of well-known members and materials, and thus detailed description thereof is omitted.

And in the part of the rear panel 70 facing the planar light source device 20A,
(A) It is formed on a region corresponding to a subpixel that emits second primary color light (wavelength λ ₂ : 532 nm) corresponding to the second primary color (green) of the color liquid crystal display device 10A, and emits second primary color light. A second primary color light emitting layer (green light emitting layer 30G) that is composed of second primary color light emitting particles and is excited by energy rays emitted from the light source 21 (specifically, the first primary color light described above) to emit second primary color light. ), And
(B) The color liquid crystal display device 10A is formed on a region corresponding to a sub-pixel that emits third primary color light (wavelength λ ₃ : 654 nm) corresponding to the third primary color (red) of the color liquid crystal display device 10A, and emits the third primary color light. A third primary color light emitting layer (red light emitting layer 30R) that is composed of the third primary color light emitting particles and is excited by the energy rays emitted from the light source 21 (specifically, the first primary color light described above) to emit the third primary color light. ),
Is formed.

  The region of the rear panel 70 facing the planar light source device 20A corresponding to the sub-pixel emitting the first primary color light corresponding to the first primary color (blue) of the color liquid crystal display device 10A is the light source 21. It is transparent to the first primary color light emitted from. That is, this region allows the first primary color light emitted from the light source 21 to pass through. In FIG. 1A, FIG. 4 and FIG. 5, this area is indicated by a dotted line, and is hereinafter referred to as a first primary color light passage area 30B.

Here, the green light emitting particles corresponding to the second primary color light emitting particles are composed of green light emitting phosphor particles (specifically, SrGa ₂ S ₄ : Eu), and the red light emitting particles corresponding to the third primary color light emitting particles are red light emitting fluorescent particles. It consists of body particles (specifically, CaS: Eu).

  More specifically, a glass plate 79 is bonded onto the polarizing film 76 provided on the outer surface of the second substrate 71, and the second primary color light emitting layer (green light emitting layer 30G) is adhered on the glass plate 79. ) And the third primary color light emitting layer (red light emitting layer 30R) are arranged. Examples of the arrangement pattern of the second primary color light emitting layer (green light emitting layer 30G), the third primary color light emitting layer (red light emitting layer 30R), and the first primary color light passing area 30B include a delta arrangement, a stripe arrangement, a diagonal arrangement, and a rectangle arrangement. Can do. That is, the portion of the rear panel 70 facing the planar light source device 20A means the outermost surface of the rear panel 70, and more specifically, in the first embodiment, refers to the glass plate 79. Further, the light emitting layers 30R and 30G and the light source 21 emit light to portions other than the light emitting layers 30R and 30G provided on the glass plate 79 and the second substrate 71 facing the first primary color light passage region 30B. A black matrix 78 is formed to shield the generated light and prevent stray light from being generated. The sizes of the portions other than the portion of the second substrate 71 facing the light emitting layers 30R, 30G and the first primary color light passage region 30B and the sizes of the light emission layers 30R, 30G and the first primary color light passage region 30B are: The relationship may be complementary, the former may be smaller than the latter, or the former may be larger than the latter.

  Further, the sub-pixels that emit the first primary color light (blue), the second primary color light (green), or the third primary color light (red) of the color liquid crystal display device, specifically, It is comprised from the one switching element 72 formed in the inner surface, and the one transparent 2nd electrode 74 by which conduction | electrical_connection / non-conduction is controlled by the switching element 72. FIG.

  The light emitting layer 30R and the light emitting layer 30G can be formed, for example, by the method described below. That is, on the surface of the glass plate 79 on which the light emitting layer is to be formed, first, in order to form the third primary color light emitting layer (red light emitting layer 30R), for example, red light emitting phosphor particles are placed on polyvinyl alcohol (PVA) resin and water. After dispersing and further applying a red light emitting phosphor slurry to which ammonium bichromate is added, the red light emitting phosphor slurry is dried. Thereafter, the portion of the red light-emitting phosphor slurry on which the third primary color light-emitting layer (red light-emitting layer 30R) is to be formed is irradiated with ultraviolet rays to expose the red light-emitting phosphor slurry. Thereafter, the third primary color light emitting layer (red light emitting layer 30R) having a predetermined arrangement pattern can be formed by developing the red light emitting phosphor slurry. Hereinafter, the second primary color light emitting layer (green light emitting layer 30G) is formed by performing the same process on the green light emitting phosphor slurry containing the green light emitting phosphor particles. The formation method of the light emitting layers 30R and 30G is not limited to the method described above, and after sequentially applying the red light emitting phosphor slurry and the green light emitting phosphor slurry, each phosphor slurry is sequentially exposed and developed. Each light emitting layer may be formed, or each light emitting layer may be formed by a screen printing method or the like. In Example 2 to Example 6 described later, the light emitting layer can be formed by a substantially similar method.

  In the color liquid crystal display device assembly of Example 1, during operation of the color liquid crystal display device, the first primary color light (blue) emitted from the light source 21 passes through the support member 22 functioning as a diffusion plate, The light emitting layers 30R and 30G are irradiated and pass through the first primary color light passage region 30B. As a result, the first primary color light (red) and the second primary color light (green) are emitted from the light emitting layers 30R and 30G, and the first primary color light (blue) that has passed through the first primary color light passage region 30B. The portion of the second substrate 71 on which the glass plate 79, the polarizing film 76, and the black matrix 78 are not formed (a portion corresponding to the light emitting layers 30R and 30G and the first primary color light passage region 30B), if desired. , Transparent second electrode 74 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device), liquid crystal material 80, transparent first electrode 64 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device) When the color filter 62 is provided, it passes through the color filter 62, the first substrate 61, and the polarizing film 66. As a result, the observer can recognize it as an image in the color liquid crystal display device.

  In the color liquid crystal display device assembly of Example 1 or Example 2 to Example 6 to be described later, the first primary color light (blue) is not emitted from the light source, but the white light is emitted. Is done. And the light emitting layer which inject | emits 2nd primary color light (green) and 3rd primary color light (red) is provided separately from the light source. Accordingly, unlike the prior art, there is no need for a process of obtaining light of a desired color by passing white light emitted from a light source such as a cold cathode fluorescent lamp through a color filter provided with a color liquid crystal display device. Thus, the effective utilization efficiency of the first primary color light (blue) generated in the light source can be improved, and as a result, the power consumption of the color liquid crystal display device assembly can be reduced.

In Example 1 or Examples 2 and 3 to be described later, the light source 21 is composed of a light emitting diode (LED) that emits not only the first primary color light but also ultraviolet rays (wavelength λ _UV : 382 nm or 405 nm). The green light emitting particles corresponding to the second primary color light emitting particles are green light emitting phosphor particles made of BaMgAl ₁₀ O ₁₇ : Eu, Mn, and the red light emitting particles corresponding to the third primary color light emitting particles are La ₂ O ₂ S: A red light emitting phosphor particle composed of Eu or Y ₂ O ₂ S: Eu, and the second primary color light emitting layer (green light emitting layer) and the energy ray emitted from the light source 21 (specifically, this ultraviolet light) and The second primary color light and the third primary color light may be emitted (emitted) by exciting the third primary color light emitting layer (red light emitting layer). In this case, the support member 22 is also transparent to the first primary color light and the ultraviolet light emitted from the light source 21, that is, without much absorption of the first primary color light and the ultraviolet light emitted from the light source 21. It is desirable to produce from a material that is not damaged by ultraviolet irradiation, more specifically, optical glass such as quartz glass or BK-7. In addition, it is desirable to dispose an ultraviolet absorbing film between the glass plate 79 and the polarizing film 76 or to dispose an ultraviolet absorbing film on the outer surface of the polarizing film 76 as desired.

  Example 2 relates to a color liquid crystal display device assembly according to a second embodiment of the present invention. A conceptual diagram of the color liquid crystal display device assembly of Example 2 is shown in FIG. 1B, and a schematic partial cross-sectional view of the color liquid crystal display device 10B in Example 2 is shown in FIG.

  In the color liquid crystal display device assembly of Example 2, the second primary color light emitting layer (green light emitting layer 31G) and the third primary color light emitting layer (red light emitting layer 31R) face the planar light source device 20A as in Example 1. Instead of being formed on the rear panel 70, the front panel 60 is formed. Except for this point, the color liquid crystal display device assembly of the second embodiment (including the planar light source device (direct backlight) 20A) has the same configuration and structure as the color liquid crystal display device assembly of the first embodiment. . In addition, the second primary color light emitting layer (green light emitting layer 31G), the third primary color light emitting layer (red light emitting layer 31R), and the first primary color light passing region 31B are also used as the second primary color light emitting layer (green light emitting layer) of Example 1. 30G), the third primary color light emitting layer (red light emitting layer 30R), and the first primary color light passage region 30B.

  More specifically, as shown in FIG. 6, the front panel 60 includes, for example, a first substrate 61 made of a glass substrate, a transparent first electrode 64 provided on the inner surface of the first substrate 61, The alignment film 65 is formed on the transparent first electrode 64, and the polarizing film (or polarizing plate) 66 is provided on the outer surface of the first substrate 61. However, unlike the front panel of Example 1, in the front panel 60 of Example 2, the second primary color light emitting layer (green light emitting layer 31G) and the third primary color light emitting layer (red light emitting layer 31R) are polarizing films 66. The second primary color light emitting layer (green light emitting layer 31G) and the third primary color light emitting layer (red light emitting layer 31R) are further covered with a color filter 62A. The color filter 62A is covered with an overcoat layer (not shown) made of an acrylic resin or an epoxy resin. In addition, the light emitted from the light emitting layers 31R, 31G and the light source 21 is shielded in portions other than the portion where the light emitting layers 31R, 31G and the first primary color light passage region 31B are formed, and stray light is generated. A black matrix 68 is formed for prevention. Here, the red light-emitting particles are composed of the same red light-emitting phosphor particles as described in Example 1, and the green light-emitting particles are also composed of the same green light-emitting phosphor particles as described in Example 1.

  On the other hand, the rear panel 70 constituting the transmissive color liquid crystal display device 10B more specifically includes, for example, a second substrate 71 made of a glass substrate and a switching formed on the inner surface of the second substrate 71. An element (specifically, a thin film transistor or TFT) 72, a transparent second electrode 74 whose conduction / non-conduction is controlled by the switching element 72, and a polarizing film 76 provided on the outer surface of the second substrate 71. Has been. An alignment film 75 is formed on the entire surface including the transparent second electrode 74. The front panel 60 and the rear panel 70 are joined to each other at their outer peripheral portions via a sealing material (not shown).

  In the color liquid crystal display device assembly of Example 2, during operation of the color liquid crystal display device, the first primary color light (blue) emitted from the light source 21 passes through the support member 22 functioning as a diffusion plate, Furthermore, the polarizing film 76, the second substrate 71, the transparent second electrode 74 (the portion corresponding to the sub-pixel that emits each color of the color liquid crystal display device), the liquid crystal material 80, the transparent first electrode 64 (the color liquid crystal display device). And the first substrate 61 and the polarizing film 66, further irradiate the light emitting layers 31R and 31G, and pass through the first primary color light passage region 31B. As a result, the third primary color light (red) and the second primary color light (green) are emitted from the light emitting layers 31R and 31G, and the first primary color light (blue) that has passed through these light and the first primary color light passage region 31B. Passes through the color filter 62A, and the observer can recognize it as an image in the color liquid crystal display device.

  In the color liquid crystal display device assembly in Example 2 or Example 5 to be described later, the second primary color light emitting layer (green light emitting layer 31G) and the third primary color light emitting layer (red light emitting layer 31R) are covered with the color filter 62A. Therefore, generation of parallax can be avoided.

  Instead of forming the second primary color light emitting layer (green light emitting layer 31G), the third primary color light emitting layer (red light emitting layer 31R), the color filter 62A, and the black matrix 68 on the polarizing film 66, these are used. One substrate 61 and the transparent first electrode 64 may be provided. The same applies to Example 5 described later.

  Example 3 relates to a color liquid crystal display device assembly according to a third aspect of the present invention and a planar light source device according to the first aspect of the present invention. A conceptual diagram of the color liquid crystal display device assembly and the planar light source device of Example 3 is shown in FIG. 2A, and the color liquid crystal display device of Example 3 is a schematic partial sectional view of FIG. 7 or FIG. Shown in

The planar light source device 20B of Example 3 is
(A) a front panel 60 having a transparent first electrode 64;
(B) a rear panel 70 having a transparent second electrode 74, and
(C) a liquid crystal material 80 disposed between the front panel 60 and the rear panel 70;
A planar light source device (direct backlight) 20B that irradiates a transmissive color liquid crystal display device 10C composed of the above from the rear panel side.

The color liquid crystal display device assembly of Example 3 is
(A) a front panel 60 having a transparent first electrode 64;
(B) a rear panel 70 having a transparent second electrode 74, and
(C) a liquid crystal material 80 disposed between the front panel 60 and the rear panel 70;
A transmissive color liquid crystal display device 10C comprising:
(D) a planar light source device (direct backlight) 20B for irradiating the color liquid crystal display device 10C from the rear panel side;
A color liquid crystal display device assembly.

And the planar light source device 20B is
(A) The first primary color among the three primary colors of light that are arranged facing (facing) the rear panel 70 and are composed of the first primary color (blue), the second primary color (green), and the third primary color (red). A light source 21 composed of a light emitting diode (LED) emitting a first primary color light corresponding to (blue) (this light emitting diode is the same light emitting diode as described in the first embodiment),
(B) a support member 22 disposed between the rear panel 70 and the light source 21;
(C) A support member corresponding to a sub-pixel that emits second primary color light (wavelength λ ₂ is the same as described in the first embodiment) corresponding to the second primary color (green) of the color liquid crystal display device 10C. The second primary color light-emitting particles that are formed on the region 22 and emit the second primary color light, are excited by the energy rays emitted from the light source 21 (specifically, the first primary color light described above) and are second. A second primary color light emitting layer (green light emitting layer 32G) that emits primary color light, and
(D) A support member corresponding to a sub-pixel that emits the third primary color light (wavelength λ ₃ is the same as that described in the first embodiment) corresponding to the third primary color (red) of the color liquid crystal display device 10C. The third primary color light-emitting particles that are formed on the region 22 and emit the third primary color light, are excited by the energy rays emitted from the light source 21 (specifically, the first primary color light described above), and are third. A third primary color light emitting layer that emits primary color light (red light emitting layer 32R),
It comprises.

  The region of the support member 22 corresponding to the sub-pixel that emits the first primary color light corresponding to the first primary color (blue) of the color liquid crystal display device 10C is transparent to the first primary color light emitted from the light source 21. It is. That is, this region allows the first primary color light emitted from the light source 21 to pass through. In FIG. 2A, this area is indicated by a dotted line, and is hereinafter referred to as a first primary color light passage area 32B.

  As shown in FIG. 7 or FIG. 8, the front panel 60 in the third embodiment has the same configuration and structure as the front panel 60 of the first embodiment described with reference to FIG. 4 or FIG. Therefore, detailed description is omitted. Further, as shown in FIG. 7 or FIG. 8, the rear panel 70 according to the third embodiment has no glass panel 79 and the rear panel 70 according to the first embodiment described with reference to FIG. 4 or FIG. And since it has the same structure and structure as the rear panel 70 of Example 1 except two points of the point by which the light emitting layer is not formed on the glass plate 79, detailed description is abbreviate | omitted. .

  Furthermore, in the planar light source device 20B, the second primary color light emitting layer (green light emitting layer 32G) and the third primary color light emitting layer (red light emitting layer 32R) are formed on the surface (inner surface) of the support member 22 facing the light source 21. Except for this point, since it has the same configuration and structure as the planar light source device 20A described in the first embodiment, detailed description thereof is omitted.

  Here, the red light-emitting particles are composed of the same red light-emitting phosphor particles as described in Example 1, and the green light-emitting particles are also composed of the same green light-emitting phosphor particles as described in Example 1.

  Further, the size of the region of the support member corresponding to the sub-pixels that emit red, green, or blue light in the color liquid crystal display device (the size of the light-emitting layers 32R and 32G and the first primary color light passage region 32B), The size may be a complementary relationship, the former may be smaller than the latter, or the former may be larger than the latter.

  In the color liquid crystal display device assembly of Example 3, the first primary color light emitted from the light source 21 irradiates the light emitting layers 32R and 32G and the first primary color light passage region 32B during the operation of the color liquid crystal display device. To do. As a result, red, green, and blue light are emitted from the light emitting layers 32R and 32G and the first primary color light passage region 32B, and these lights pass through the support member 22 that functions as a diffusion plate, and further, as desired. Accordingly, the portion of the second substrate 71 on which the polarizing film 76 and the black matrix 78 are not formed (corresponding to the light emitting layers 32R and 32G and the first primary color light passage region 32B), the transparent second Electrode 74 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device), liquid crystal material 80, transparent first electrode 64 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device), color filter 62 Is provided, it passes through the color filter 62, the first substrate 61, and the polarizing film 66. As a result, the observer can recognize it as an image in the color liquid crystal display device.

  Example 4 relates to a color liquid crystal display device assembly according to the fourth aspect of the present invention. A conceptual diagram of a color liquid crystal display device assembly of Example 4 is shown in FIG. The schematic partial cross-sectional view of the color liquid crystal display device in Example 4 is the same as the schematic partial cross-sectional view shown in FIG. 4 or FIG.

The color liquid crystal display device assembly of Example 4 is
(A) a front panel 60 having a transparent first electrode 64;
(B) a rear panel 70 having a transparent second electrode 74, and
(C) a liquid crystal material 80 disposed between the front panel 60 and the rear panel 70;
A transmissive color liquid crystal display device 10A comprising:
(D) A planar light source device (edge light type backlight) 40A, which includes a light guide plate 50 and a light source 41, and irradiates the color liquid crystal display device 10A from the rear panel side.
It has.

  Here, the light source 41 is the first primary color light corresponding to the first primary color (blue) of the three primary colors composed of the first primary color (blue), the second primary color (green), and the third primary color (red). Is made of a light emitting diode (LED) that enters the light guide plate 50 from the side surface (first side surface 54) of the light guide plate 50. This light emitting diode is the same light emitting diode as described in the first embodiment.

And in the part of the rear panel 70 facing (facing) the planar light source device 20A,
(A) On a region corresponding to a sub-pixel that emits second primary color light (wavelength λ ₂ is the same wavelength as described in the first embodiment) corresponding to the second primary color (green) of the color liquid crystal display device 10A. The first primary color light-emitting particles that emit the second primary color light are formed and are excited by the energy rays emitted from the light source 41 (specifically, the first primary color light described above) to emit the second primary color light. A second primary color light emitting layer (green light emitting layer 30G), and
(B) On a region corresponding to a sub-pixel that emits third primary color light (wavelength λ ₃ is the same wavelength as described in the first embodiment) corresponding to the third primary color (red) of the color liquid crystal display device 10A. The third primary color light emitting particles that emit the third primary color light are formed, and are excited by the energy rays emitted from the light source 41 (specifically, the first primary color light described above) to emit the third primary color light. A third primary color light emitting layer (red light emitting layer 30R),
Is formed.

  The area of the rear panel 70 facing the planar light source device 40A corresponding to the sub-pixel emitting the first primary color light corresponding to the first primary color (blue) of the color liquid crystal display device 10A is a light guide plate. The first primary color light emitted from 50 is transparent. That is, this region (first primary color light passage region 30B) allows the first primary color light emitted from the light guide plate 50 to pass therethrough.

  Here, the configurations and structures of the front panel 60 and the rear panel 70 are the same configurations and structures as the front panel 60 and the rear panel 70 of the first embodiment described with reference to FIGS. 4 and 5. Detailed description will be omitted. The red light emitting particles are composed of the same red light emitting phosphor particles as described in Example 1, and the green light emitting particles are also composed of the same green light emitting phosphor particles as described in Example 1.

  In Example 4, or Examples 5 and 6 to be described later, for example, a light guide plate 50 made of polycarbonate resin includes a first surface (bottom surface) 51 and a second surface (top surface) facing the first surface 51. ) 53, a first side surface 54, a second side surface 55, a third side surface 56 facing the first side surface 54, and a fourth side surface facing the second side surface 54. A more specific shape of the light guide plate as a whole is a wedge-shaped truncated quadrangular pyramid shape, and two opposing side surfaces of the truncated quadrangular pyramid correspond to the first surface 51 and the second surface 53, and the truncated four-pyramid shape. The bottom surface of the pyramid corresponds to the first side surface 54. An uneven portion 52 is provided on the surface portion of the first surface 51. The cross-sectional shape of the continuous convex and concave portions when the light guide plate 50 is cut in a virtual plane perpendicular to the first surface 51 in the first primary color light incident direction to the light guide plate 50 is a triangle. That is, the uneven portion 52 provided on the surface portion of the first surface 51 has a prism shape. The second surface 53 of the light guide plate 50 may be smooth (that is, may be a mirror surface) or may be provided with a blast texture having a diffusion effect (that is, a fine uneven surface). A reflective member 42 is disposed to face the first surface 51 of the light guide plate 50. Further, the color liquid crystal display device 10 </ b> A is disposed to face the second surface 53 of the light guide plate 50. Further, a diffusion sheet 43 and a prism sheet 44 are disposed between the color liquid crystal display device 10 </ b> A and the second surface 53 of the light guide plate 50. The first primary color light emitted from the light source 41 enters the light guide plate 50 from the first side surface 54 of the light guide plate 50 (for example, the surface corresponding to the bottom surface of the truncated quadrangular pyramid), and the uneven portion 52 of the first surface 51. And is scattered from the first surface 51, reflected by the reflecting member 42, reentered the first surface 51, and emitted from the second surface 53, passing through the diffusion sheet 43 and the prism sheet 44. Then, the color liquid crystal display device 10A is irradiated.

  In the color liquid crystal display device assembly of Example 4, when the color liquid crystal display device is operated, the first primary color light (blue) emitted from the light source 41 is finally returned to the second surface ( The light is emitted from the top surface 53 toward the color liquid crystal display device 10A, irradiates the light emitting layers 30R and 30G, and passes through the first primary color light passage region 30B. As a result, the first primary color light (red) and the second primary color light (green) are emitted from the light emitting layers 30R and 30G, and the first primary color light (blue) that has passed through the first primary color light passage region 30B. The portion of the second substrate 71 on which the glass plate 79, the polarizing film 76, and the black matrix 78 are not formed (a portion corresponding to the light emitting layers 30R and 30G and the first primary color light passage region 30B), if desired. , Transparent second electrode 74 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device), liquid crystal material 80, transparent first electrode 64 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device) When the color filter 62 is provided, it passes through the color filter 62, the first substrate 61, and the polarizing film 66. As a result, the observer can recognize it as an image in the color liquid crystal display device.

In Example 4 or Examples 5 and 6 to be described later, the light source 41 is composed of a light emitting diode (LED) that emits not only the first primary color light but also ultraviolet rays (wavelength λ _UV : 382 nm or 405 nm). The green light emitting particles corresponding to the second primary color light emitting particles are green light emitting phosphor particles made of BaMgAl ₁₀ O ₁₇ : Eu, Mn, and the red light emitting particles corresponding to the third primary color light emitting particles are La ₂ O ₂ S: The red light emitting phosphor particles made of Eu or Y ₂ O ₂ S: Eu are used, and the second primary color light emitting layer (green light emitting layer) and the energy ray emitted from the light source 41 (specifically, this ultraviolet ray) are used. The second primary color light and the third primary color light may be emitted (emitted) by exciting the third primary color light emitting layer (red light emitting layer). In this case, the light guide plate 50 is also transparent to the first primary color light and the ultraviolet light emitted from the light source 41, that is, without much absorption of the first primary color light and the ultraviolet light emitted from the light source 41. It is desirable to make a material that is not damaged by ultraviolet irradiation, more specifically, a silicone resin material. Moreover, it is desirable to arrange an ultraviolet absorbing film between the glass plate 79 and the polarizing film 76 as desired. Furthermore, the reflecting member 42 is made of a material that is not damaged by the irradiation of ultraviolet rays, more specifically, for example, a sheet in which an inorganic material such as TiO ₂ , BaSO ₄ , or MgO is dispersed in a silicone resin. Desirably, the diffusion sheet 43 is transparent to the ultraviolet rays emitted from the light source 41, that is, a material that does not absorb much ultraviolet rays emitted from the light source 41 and is not damaged by the irradiation of ultraviolet rays. Specifically, for example, it is desirable to produce from a sheet in which an inorganic material such as TiO ₂ , BaSO ₄ , MgO or the like is dispersed in a silicone-based resin, and the prism sheet 44 is transparent to ultraviolet rays emitted from the light source 41. That is, it is made of a material that does not absorb much of the ultraviolet rays emitted by the light source 41 and that is not damaged by the irradiation of ultraviolet rays. Is desirable.

  Example 5 relates to a color liquid crystal display device assembly according to a fifth aspect of the present invention. A conceptual diagram of a color liquid crystal display device assembly of Example 5 is shown in FIG. The schematic partial cross-sectional view of the color liquid crystal display device in Example 5 is the same as the schematic partial cross-sectional view shown in FIG.

  In the color liquid crystal display device assembly of Example 5, the second primary color light emitting layer (green light emitting layer 31G) and the third primary color light emitting layer (red light emitting layer 31R) are opposed to the planar light source device 40A as in Example 4. Instead of being formed on the rear panel 70, the front panel 60 is formed. Except for this point, the color liquid crystal display device assembly of Example 5 (including the planar light source device (edge light type backlight) 40A) has the same configuration and structure as the color liquid crystal display device assembly of Example 4. Have. In addition, the second primary color light emitting layer (green light emitting layer 31G), the third primary color light emitting layer (red light emitting layer 31R), and the first primary color light passing region 31B are also used. 30G), the third primary color light emitting layer (red light emitting layer 30R), and the first primary color light passage region 30B.

  Furthermore, the configuration and structure of the front panel 60 and the rear panel 70 can be the same configuration and structure as the front panel 60 and the rear panel 70 of the second embodiment described with reference to FIG. Therefore, detailed description is omitted. The red light emitting particles are composed of the same red light emitting phosphor particles as described in Example 1, and the green light emitting particles are also composed of the same green light emitting phosphor particles as described in Example 1.

  In the color liquid crystal display device assembly of the fifth embodiment, the first primary color light (blue) emitted from the light source 41 at the time of operation of the color liquid crystal display device is finally the second surface ( The top surface) 53 is emitted toward the color liquid crystal display device 10A, the polarizing film 76, the second substrate 71, the transparent second electrode 74 (the portion corresponding to the sub-pixels that emit each color of the color liquid crystal display device), the liquid crystal The material 80 passes through the transparent first electrode 64 (corresponding to the sub-pixel that emits each color of the color liquid crystal display device), the first substrate 61, and the polarizing film 66, and further irradiates the light emitting layers 31R and 31G. It passes through the first primary color light passage region 31B. As a result, the third primary color light (red) and the second primary color light (green) are emitted from the light emitting layers 31R and 31G, and the first primary color light (blue) that has passed through these light and the first primary color light passage region 31B. Passes through the color filter 62A, and the observer can recognize it as an image in the color liquid crystal display device.

  Example 6 relates to a color liquid crystal display device assembly according to a sixth aspect of the present invention and a planar light source device according to the second aspect of the present invention. A conceptual diagram of a color liquid crystal display device assembly and a planar light source device of Example 6 is shown in FIG. The schematic partial cross-sectional view of the color liquid crystal display device in Example 6 is the same as the schematic partial cross-sectional view shown in FIG. 7 or FIG.

The planar light source device of Example 6 is
(A) a front panel 60 having a transparent first electrode 64;
(B) a rear panel 70 having a transparent second electrode 74, and
(C) a liquid crystal material 80 disposed between the front panel 60 and the rear panel 70;
Is a planar light source device (edge-light type backlight) 40B that irradiates a transmissive color liquid crystal display device 10C comprising:

The color liquid crystal display device assembly of Example 6 is
(A) a front panel 60 having a transparent first electrode 64;
(B) a rear panel 70 having a transparent second electrode 74, and
(C) a liquid crystal material 80 disposed between the front panel 60 and the rear panel 70;
A transmissive color liquid crystal display device 10C comprising:
(D) a planar light source device (edge light type backlight) 40B for irradiating the color liquid crystal display device 10C from the rear panel side;
A color liquid crystal display device assembly.

And the planar light source device 40B is
(A) Light guide plate 50,
(B) emitting the first primary color light corresponding to the first primary color (blue) of the three primary colors composed of the first primary color (blue), the second primary color (green) and the third primary color (red); A light source 41 composed of a light emitting diode (LED) that is incident on the light guide plate 50 from the side surface (first side surface 54) of the light guide plate 50 (note that this light emitting diode is the same light emitting diode as described in the first embodiment),
(C) The rear corresponding to the sub-pixel that emits the second primary color light (wavelength λ ₂ is the same wavelength as described in the first embodiment) corresponding to the second primary color (green) of the color liquid crystal display device 10C. Energy rays emitted from the light source 41 (specifically, the first primary color described above) formed of the second primary color light emitting particles that emit the second primary color light and are formed on the region of the light guide plate 50 facing the panel 70. A second primary color light emitting layer (green light emitting layer 32G) that is excited by light to emit second primary color light, and
(D) The rear corresponding to the sub-pixel that emits the third primary color light (wavelength λ ₃ is the same wavelength as described in the first embodiment) corresponding to the third primary color (red) of the color liquid crystal display device 10C. Energy rays emitted from the light source 41 (specifically, the first primary color described above), which are formed on the light guide plate 50 facing the panel 70 and are composed of light emitting particles of the third primary color that emit light of the third primary color. A third primary color light emitting layer (red light emitting layer 32R) that is excited by light to emit a third primary color light,
It comprises.

  The region of the light guide plate 50 facing the rear panel 70 corresponding to the sub-pixel emitting the first primary color light corresponding to the first primary color (blue) of the color liquid crystal display device 10C is emitted from the light source 41. Transparent to the first primary color light. That is, this region (first primary color light passage region 32B) allows the first primary color light emitted from the light source 41 to pass therethrough.

  Here, the configurations and structures of the front panel 60 and the rear panel 70 are the same configurations and structures as the front panel 60 and the rear panel 70 of the third embodiment described with reference to FIG. 7 or FIG. Detailed description will be omitted. Further, the configuration and structure of the light guide plate 50 also includes the second surface of the light guide plate 50 in which the second primary color light emitting layer (green light emitting layer 32G) and the third primary color light emitting layer (red light emitting layer 32R) face the rear panel 70. Except for the point formed on 53, since it can be set as the structure and structure similar to the structure and structure of the light-guide plate 50 demonstrated in Example 4, detailed description is abbreviate | omitted. Further, the red light-emitting particles are composed of red light-emitting phosphor particles similar to those described in Example 1, and the green light-emitting particles are also composed of green light-emitting phosphor particles similar to those described in Example 1.

  The size of the region of the light guide plate 50 (the size of the light emitting layers 32R and 32G and the first primary color light passage region 32B) corresponding to the subpixels that emit red, green, or blue light of the color liquid crystal display device, and the subpixels. May be in a complementary relationship, the former may be smaller than the latter, or the former may be larger than the latter. In some cases, the light emitting layers 32 </ b> R and 32 </ b> G may be disposed on the first surface 51 of the light guide plate 50.

  In the color liquid crystal display device assembly of Example 6, during operation of the color liquid crystal display device, the ultraviolet light emitted from the light source 41 irradiates the light emitting layers 32R and 32G and passes through the first primary color light passage region 32B. To do. As a result, red and green light is emitted from the light emitting layers 32R and 32G, and blue light passes through the first primary color light passage region 32B. The light is diffused by the diffusion sheet 43 and the prism sheet as desired. 44, and further, a portion of the second substrate 71 on which the polarizing film 76 and the black matrix 78 are not formed (corresponding to the light emitting layers 32R and 32G and the first primary color light passage region 32B). , Transparent second electrode 74 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device), liquid crystal material 80, transparent first electrode 64 (part corresponding to sub-pixels that emit light of each color of the color liquid crystal display device) When the color filter 62 is provided, it passes through the color filter 62, the first substrate 61, and the polarizing film 66. As a result, the observer can recognize it as an image in the color liquid crystal display device.

  As mentioned above, although this invention was demonstrated based on the preferable Example, this invention is not limited to these Examples. The configurations and structures of the transmissive color liquid crystal display device, the planar light source device, and the color liquid crystal display device assembly described in the embodiments are examples, and members, materials, and the like constituting these are also examples, and may be changed as appropriate. can do. In addition, descriptions regarding the first primary color, the first primary color light, the second primary color, the second primary color light, the third primary color, and the third primary color light are also examples, and can be changed as appropriate. That is, the first primary color may be green or red instead of blue.

  In the color liquid crystal display device assembly according to the embodiment, the black matrix 78 does not have to be formed on the second substrate 71, and the second plate formed on the glass plate 79, the support member 22, and the light guide plate 50. A gap may exist between the primary color light emitting layer and the third primary color light emitting layer as shown in the figure, or a gap may not exist. If there is a risk of damage to the liquid crystal material, polarizing film, etc. due to ultraviolet rays, an ultraviolet absorbing (cut) film or ultraviolet absorbing (cut) layer that absorbs and blocks ultraviolet rays is placed and formed at appropriate positions. May be. Further, an antireflection film (AR film) may be attached to the surface of the first substrate in the front panel constituting the color liquid crystal display device.

As a modification of the color liquid crystal display device assembly of Example 1 or Example 2,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
Consisting of
(D) a color filter,
A transmissive color liquid crystal display device comprising:
(E) a planar light source device having a light source disposed facing the rear panel and irradiating the color liquid crystal display device from the rear panel side;
With
The light source includes a first light source that emits a first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color, and a first light source that corresponds to the second primary color. A second light source that emits light of two primary colors,
On the rear panel facing the surface light source device, or on the front panel, on the area corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A color liquid crystal formed of a third primary color light emitting particle that is formed and emits a third primary color light and is excited by an energy beam emitted from the first light source to emit a third primary light. It can also be a display device assembly.

As a modification of the color liquid crystal display device assembly of Example 3,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
Consisting of
(D) a color filter,
A transmissive color liquid crystal display device comprising:
(E) a planar light source device for irradiating a color liquid crystal display device from the rear panel side;
With
The planar light source device
(A) A first light source that is disposed to face the rear panel and emits a first primary color light corresponding to a first primary color among the three primary colors composed of the first primary color, the second primary color, and the third primary color. And a light source comprising a second light source that emits a second primary color light corresponding to the second primary color,
(B) a support member disposed between the rear panel and the light source, and
(C) formed on the region of the support member corresponding to the sub-pixel that emits the third primary color light corresponding to the third primary color of the color liquid crystal display device, and composed of the third primary color light emitting particles that emit the third primary color light; A third primary color light emitting layer that emits third primary color light when excited by energy rays emitted from the first light source;
It is also possible to provide a color liquid crystal display device assembly comprising:

Furthermore, as a modification of the color liquid crystal display device assembly of Example 4 or Example 5,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
Consisting of
(D) a color filter,
A transmissive color liquid crystal display device comprising:
(E) a planar light source device comprising a light guide plate and a light source and irradiating the color liquid crystal display device from the rear panel side;
With
The light source emits first primary color light corresponding to the first primary color among the three primary colors composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate. A light source and a second light source that emits a second primary color light corresponding to the second primary color and that enters the light guide plate from a side surface of the light guide plate;
On the rear panel facing the surface light source device, or on the front panel, on the area corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A color liquid crystal display assembly comprising a third primary color light emitting particle formed and emitting a third primary color, and formed with a third primary color light emitting layer that is excited by an energy beam emitted from a light source to emit the third primary color It can also be.

As a modification of the color liquid crystal display device assembly of Example 6,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
Consisting of
(D) a color filter,
A transmissive color liquid crystal display device comprising:
(E) a planar light source device for irradiating a color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The planar light source device
(A) a light guide plate,
(B) A first primary color light corresponding to the first primary color of the three primary colors composed of the first primary color, the second primary color, and the third primary color is emitted, and is incident on the light guide plate from the side surface of the light guide plate. A light source, and a light source composed of a second light source that emits a second primary color light corresponding to the second primary color and enters the light guide plate from a side surface of the light guide plate, and
(C) A first light emitting the first primary color light that is formed on a region of the light guide plate facing the rear panel corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer composed of three primary color light emitting particles, which is excited by energy rays emitted from the first light source and emits third primary color light;
It is also possible to provide a color liquid crystal display device assembly comprising:

Moreover, as a modification of the planar light source device of Example 3,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
Consisting of
(D) a color filter,
A planar light source device for irradiating a transmissive color liquid crystal display device comprising a rear panel side,
(A) A first light source that is disposed to face the rear panel and emits a first primary color light corresponding to a first primary color among the three primary colors composed of the first primary color, the second primary color, and the third primary color. And a light source comprising a second light source that emits a second primary color light corresponding to the second primary color,
(B) a support member disposed between the rear panel and the light source, and
(C) formed on the region of the support member corresponding to the sub-pixel that emits the third primary color light corresponding to the third primary color of the color liquid crystal display device, and composed of the third primary color light emitting particles that emit the third primary color light; A third primary color light emitting layer that emits third primary color light when excited by energy rays emitted from the first light source;
The planar light source device can also be provided.

Furthermore, as a modification of the planar light source device of Example 6,
(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
Consisting of
(D) a color filter,
A planar light source device for irradiating a transmissive color liquid crystal display device comprising a rear panel side,
(A) a light guide plate,
(B) A first primary color light corresponding to the first primary color of the three primary colors composed of the first primary color, the second primary color, and the third primary color is emitted, and is incident on the light guide plate from the side surface of the light guide plate. A light source, and a light source composed of a second light source that emits a second primary color light corresponding to the second primary color and enters the light guide plate from a side surface of the light guide plate, and
(C) A first light emitting the first primary color light that is formed on a region of the light guide plate facing the rear panel corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer composed of three primary color light emitting particles, which is excited by energy rays emitted from the first light source and emits third primary color light;
The planar light source device can also be provided.

And in these variations, although not limited,
The first light source comprises a first light emitting diode that emits blue light as the first primary color light,
The second light source comprises a second light emitting diode that emits green light as the second primary color light,
The third primary color is red,
The energy rays emitted from the first light source that excites the third primary color light-emitting particles constituting the third primary color light-emitting layer can be configured to be the blue light or the ultraviolet light.

Furthermore, as the light sources 21 and 41, fluorescent lamps or semiconductor lasers that emit blue light as the first primary color light may be employed instead of the light emitting diodes. In this case, 450 nm can be exemplified as the wavelength λ ₁ of the first primary color light corresponding to the first primary color (blue) emitted from the fluorescent lamp, and the green light emitting particle corresponding to the second primary color light emitting particle is, for example, SrGa _The green light emitting phosphor particles made of ₂ S ₄ : Eu may be used, and the red light emitting particles corresponding to the third primary color light emitting particles may be red light emitting phosphor particles made of, for example, CaS: Eu. Alternatively, when a semiconductor laser is used, 457 nm can be exemplified as the wavelength λ ₁ of the first primary color light corresponding to the first primary color (blue) emitted by the semiconductor laser. The corresponding green light emitting particles may be green light emitting phosphor particles made of, for example, SrGa ₂ S ₄ : Eu, and the red light emitting particles corresponding to the third primary color light emitting particles are, for example, red light emitting phosphor particles made of CaS: Eu. And it is sufficient. Alternatively, the light sources 21 and 41 are constituted by fluorescent lamps that emit not only the first primary color light but also ultraviolet rays (wavelength λ _UV : 254 nm), and the green light emitting particles corresponding to the second primary color light emitting particles are replaced with BaMgAl ₁₀ O. ₁₇ : Green light emitting phosphor particles composed of Eu and Mn, red light emitting particles corresponding to the third primary color light emitting particles are red light emitting phosphor particles composed of YVO ₄ : Eu, and energy rays emitted from the light sources 21 and 41 (Specifically, the second primary color light-emitting layer (green light-emitting layer) and the third primary color light-emitting layer (red light-emitting layer) are excited by (this ultraviolet light) to emit the second primary color light and the third primary color light ( Injection). When a fluorescent lamp is used, the inner wall portion of the fluorescent lamp facing the side surface of the color liquid crystal display assembly or the light guide plate (for example, the shape of the inner wall of the fluorescent lamp when cut along a virtual plane perpendicular to the axis is circular) In this case, for example, a fluorescent lamp coated with blue light-emitting phosphor particles can be used only on the color liquid crystal display device assembly or the side surface of the light guide plate, for example, a semicircular portion.

1A is a conceptual diagram of the color liquid crystal display device assembly of Example 1, and FIG. 1B is a conceptual diagram of the color liquid crystal display device assembly of Example 2. FIG. 2A is a conceptual diagram of the color liquid crystal display device assembly of Example 3, and FIG. 2B is a conceptual diagram of the color liquid crystal display device assembly of Example 4. FIG. FIG. 3A is a conceptual diagram of a color liquid crystal display device assembly of Example 5, and FIG. 3B is a conceptual diagram of a color liquid crystal display device assembly of Example 6. FIG. 4 is a schematic partial cross-sectional view of a color liquid crystal display device in the color liquid crystal display device assembly of Example 1 or Example 4. FIG. 5 is a schematic partial cross-sectional view of a modification of the color liquid crystal display device in the color liquid crystal display device assembly of Example 1 or Example 4. FIG. 6 is a schematic partial cross-sectional view of a modification of the color liquid crystal display device in the color liquid crystal display device assembly of Example 2 or Example 5. FIG. 7 is a schematic partial cross-sectional view of a color liquid crystal display device in the color liquid crystal display device assembly of Example 3 or Example 6. FIG. 8 is a schematic partial cross-sectional view of a modification of the color liquid crystal display device in the color liquid crystal display device assembly of Example 3 or Example 6. 9A and 9B are conceptual diagrams of a conventional color liquid crystal display device assembly.

Explanation of symbols

10A, 10B, 10C ... Color liquid crystal display device, 20A, 20B, 40A, 40B ... Planar light source device, 21 ... Light source, 22 ... Support member, 23 ... Housing, 30R, 31R, 32R ... red light emitting layer, 30G, 31G, 32G ... green light emitting layer, 30B, 31B, 32B ... first primary color light passing region, 41 ... light source, 42 ... reflecting member, 43 ... diffusion sheet, 44 ... prism sheet, 50 ... light guide plate, 51 ... first surface of the light guide plate, 52 ... uneven portion on the first surface, 53 ... light guide plate 2nd surface, 54 ... 1st side surface of light-guide plate, 55 ... 2nd side surface of light-guide plate, 56 ... 3rd side surface of light-guide plate, 60 ... Front panel, 61 ... 1st surface 1 substrate, 62, 62A ... color filter, 63 ... overcoat layer, 64 ..Transparent first electrode, 65 ... Alignment film, 66 ... Polarizing film, 70 ... Rear panel, 71 ... Second substrate, 72 ... Switching element, 74 ... Transparent Second electrode, 75 ... Alignment film, 76 ... Polarizing film, 77 ... Insulating layer, 78 ... Black matrix, 79 ... Glass plate, 80 ... Liquid crystal material

Claims (13)

(A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device having a light source that is disposed to face the rear panel and irradiates the color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The light source emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color,
In the part of the rear panel facing the planar light source device,
(A) It is formed on a region corresponding to a subpixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and is composed of second primary color light emitting particles that emit the second primary color light, and is emitted from the light source. A second primary color light emitting layer that emits second primary color light when excited by the generated energy rays, and
(B) It is formed on a region corresponding to a sub-pixel that emits the third primary color light corresponding to the third primary color corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer that emits a third primary color light when excited by the generated energy rays;
A color liquid crystal display device assembly, wherein:   The second primary color light-emitting layer and the third primary color light-emitting layer are formed on the front panel instead of being formed on the portion of the rear panel facing the planar light source device. Color liquid crystal display device assembly. (A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device for irradiating a color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The planar light source device
(A) A light source that is arranged to face the rear panel and emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color,
(B) a support member disposed between the rear panel and the light source;
(C) formed on the region of the support member corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and composed of second primary color light emitting particles that emit the second primary color light; A second primary color light emitting layer that emits second primary color light when excited by energy rays emitted from a light source; and
(D) formed on the region of the support member corresponding to the sub-pixel that emits the third primary color light corresponding to the third primary color of the color liquid crystal display device, and composed of the third primary color light emitting particles that emit the third primary color light; A third primary color light emitting layer that emits a third primary color light when excited by energy rays emitted from a light source;
A color liquid crystal display device assembly comprising: (A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device comprising a light guide plate and a light source and irradiating the color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The light source emits first primary color light corresponding to the first primary color among the three primary colors composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate,
In the part of the rear panel facing the planar light source device,
(A) It is formed on a region corresponding to a subpixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and is composed of second primary color light emitting particles that emit the second primary color light, and is emitted from the light source. A second primary color light emitting layer that emits second primary color light when excited by the generated energy rays, and
(B) It is formed on a region corresponding to a sub-pixel that emits the third primary color light corresponding to the third primary color corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer that emits a third primary color light when excited by the generated energy rays;
A color liquid crystal display device assembly, wherein:   5. The second primary color light emitting layer and the third primary color light emitting layer are formed on the front panel instead of being formed on the portion of the rear panel facing the planar light source device. Color liquid crystal display device assembly. (A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A transmissive color liquid crystal display device comprising:
(D) a planar light source device for irradiating a color liquid crystal display device from the rear panel side;
A color liquid crystal display device assembly comprising:
The planar light source device
(A) a light guide plate,
(B) a light source that emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate;
(C) A second light source that emits the second primary color light and is formed on a region of the light guide plate facing the rear panel corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device. A second primary color light emitting layer composed of two primary color light emitting particles and excited by energy rays emitted from a light source to emit second primary color light; and
(D) A third light emitting the first primary color light, which is formed on the region of the light guide plate facing the rear panel corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer composed of three primary color light emitting particles, which is excited by energy rays emitted from a light source and emits a third primary color light;
A color liquid crystal display device assembly comprising:   The color liquid crystal display device assembly according to claim 1, wherein the front panel further includes a color filter. The light source comprises a light emitting diode that emits blue light as the first primary color light,
The second primary color and the third primary color are green and red, respectively.
The energy beam emitted from the light source that excites the second primary color light emitting particles and the third primary color light emitting particles constituting the second primary color light emitting layer and the third primary color light emitting layer is the blue light. The color liquid crystal display device assembly according to any one of claims 1 to 6. The light source comprises a light emitting diode that emits blue light as the first primary color light,
The second primary color and the third primary color are green and red, respectively.
The energy rays emitted from the light source that excites the second primary color light-emitting particles and the third primary color light-emitting particles constituting the second primary color light-emitting layer and the third primary color light-emitting layer are ultraviolet rays. Item 7. The color liquid crystal display device assembly according to any one of Items 6 to 7. (A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A planar light source device for irradiating a transmissive color liquid crystal display device comprising a rear panel side,
(A) A light source that is arranged to face the rear panel and emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color,
(B) a support member disposed between the rear panel and the light source;
(C) formed on the region of the support member corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device, and composed of second primary color light emitting particles that emit the second primary color light; A second primary color light emitting layer that emits second primary color light when excited by energy rays emitted from a light source; and
(D) formed on the region of the support member corresponding to the sub-pixel that emits the third primary color light corresponding to the third primary color of the color liquid crystal display device, and composed of the third primary color light emitting particles that emit the third primary color light; A third primary color light emitting layer that emits a third primary color light when excited by energy rays emitted from a light source;
A planar light source device comprising: (A) a front panel having a transparent first electrode;
(B) a rear panel provided with a transparent second electrode, and
(C) a liquid crystal material disposed between the front panel and the rear panel;
A planar light source device for irradiating a transmissive color liquid crystal display device comprising a rear panel side,
(A) a light guide plate,
(B) a light source that emits first primary color light corresponding to the first primary color among the three primary colors of light composed of the first primary color, the second primary color, and the third primary color, and enters the light guide plate from the side surface of the light guide plate;
(C) A second light source that emits the second primary color light and is formed on a region of the light guide plate facing the rear panel corresponding to the sub-pixel that emits the second primary color light corresponding to the second primary color of the color liquid crystal display device. A second primary color light emitting layer composed of two primary color light emitting particles and excited by energy rays emitted from a light source to emit second primary color light; and
(D) A third light emitting the first primary color light, which is formed on the region of the light guide plate facing the rear panel corresponding to the sub-pixel emitting the third primary color light corresponding to the third primary color of the color liquid crystal display device. A third primary color light emitting layer composed of three primary color light emitting particles, which is excited by energy rays emitted from a light source and emits a third primary color light;
A planar light source device comprising: The light source comprises a light emitting diode that emits blue light as the first primary color light,
The second primary color and the third primary color are green and red, respectively.
The energy beam emitted from the light source that excites the second primary color light emitting particles and the third primary color light emitting particles constituting the second primary color light emitting layer and the third primary color light emitting layer is the blue light. The planar light source device according to claim 10 or 11. The light source comprises a light emitting diode that emits blue light as the first primary color light,
The second primary color and the third primary color are green and red, respectively.
11. The energy rays emitted from the light source that excites the second primary color light emitting particles and the third primary color light emitting particles constituting the second primary color light emitting layer and the third primary color light emitting layer are ultraviolet rays. Item 12. The planar light source device according to Item 11.

Images