JP2010008815A - Display device and television receiver - Google Patents

Abstract

To achieve uniform luminance without increasing the overall thickness.
A liquid crystal display device includes a cold cathode tube, a planar optical member disposed on a light emitting side of the cold cathode tube, a light emitting side of the optical member, and an exit thereof. The liquid crystal panel 11 that performs display using incident light, and a holding unit that integrally holds the liquid crystal panel 11 and the optical member 22 in close contact with each other. In this way, since the liquid crystal panel 11 and the optical member 22 are held in close contact with each other by the holding means, compared to a conventional case in which a gap is provided between the liquid crystal panel and the optical member, A wide space between the cold cathode tube 23 and the optical member 22 can be secured without increasing the thickness of the entire liquid crystal display device 10. Thereby, the image of the cold cathode tube 23 becomes difficult to be visually recognized, and the luminance can be made uniform.
[Selection] Figure 2

Description

  The present invention relates to a display device and a television receiver.

Conventionally, a liquid crystal display device using a liquid crystal panel as a display panel that does not emit light has been provided with a backlight device that emits light toward the liquid crystal panel, and an example thereof is described in Patent Document 1 below. It has been. In this case, a backlight device arranged on the back side of the liquid crystal panel includes a plurality of cold cathode tubes arranged in parallel, a chassis that houses the cold cathode tubes and has an open side of the light emitting side of the cold cathode tubes, A plurality of planar optical members installed in the opening, a lamp holder that supports the optical members from the back side, and a frame-like frame that presses the optical member from the front side and is clamped between the lamp holders ing. The liquid crystal panel is sandwiched between the frame interposed between the liquid crystal panel and the optical member and a frame-shaped bezel arranged on the front side.
JP 2006-235127 A

  In the above-described liquid crystal display device, the number of cold cathode tubes used in the backlight device may be reduced for the purpose of cost reduction or the like. In that case, since the space between the cold cathode fluorescent lamps is widened and the area where the cold cathode fluorescent lamps do not exist is likely to be a dark part, luminance unevenness tends to occur as a whole.

  Therefore, widening the distance between the cold cathode fluorescent lamp and the optical member for converting the light from the cold cathode fluorescent lamp into a planar shape is effective in eliminating luminance unevenness. However, this causes a problem that the backlight device, and thus the liquid crystal display device as a whole becomes thick, and cannot be easily dealt with.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to achieve uniform luminance without increasing the overall thickness.

  The display device of the present invention includes a light source, a planar optical member disposed on the light emitting side of the light source, and a display that is disposed on the light emitting side of the optical member and performs display using the emitted light. A panel, and holding means for integrally holding the display panel and the optical member in close contact with each other.

  In this way, since the display panel and the optical member are held in close contact with each other by the holding means, the display device is compared with a conventional display panel having a gap between the display panel and the optical member. A wide space between the light source and the optical member can be secured without increasing the overall thickness. Thereby, it becomes difficult to visually recognize the image of the light source, and the luminance can be made uniform. In addition, since the display panel and the optical member that are in close contact with each other are integrally held by the holding means, it is possible to prevent rubbing between the display panel and the optical member due to the influence of vibration or the like. Thereby, high display quality can be obtained.

The following configuration is preferable as an embodiment of the present invention.
(1) The holding means includes a pair of holding members that can hold the display panel and the optical member, and a fixing member that fixes both holding members. According to this configuration, the display panel and the optical member can be integrally held in close contact with each other by fixing the holding members in a state of sandwiching the display panel and the optical member with the fixing member.

(2) At least one of the two holding members is configured to be formed in a frame shape along the outer peripheral edge of the display panel or the optical member. If it does in this way, a display panel and an optical member can be reinforced with the holding member which makes frame shape.

(3) The fixing member is arranged at a corner position in the holding member having a frame shape. If it does in this way, a frame-shaped holding member can be fixed efficiently.

(4) The fixing member includes a screw member that tightens the holding members. In this way, the tightening force applied to the holding member can be freely adjusted.

(5) Both the holding members are provided with an overhanging portion that protrudes outward from the display panel and the optical member, and the overhanging portion is formed with a hole through which the screw member is passed. The configuration. If it does in this way, it is not necessary to form the hole for letting a screw member pass to a display panel and an optical member. Further, the load on the display panel and the optical member accompanying the tightening of the screw member can be reduced.

(6) At least one of the two holding members is configured to have a facing portion that is arranged to face the end face of the display panel or the optical member. In this way, when the display panel and the optical member are sandwiched between the holding members, the opposing portion hits the end surface of the display panel or the optical member, so that the positional relationship of the display panel or the optical member with respect to the holding member is changed. Can be regulated.

(7) The opposing portions are provided on the holding members, respectively, and the opposing portions abut on each other in a state where the display panel and the optical member are sandwiched between the holding members. It is set as the structure which can control the space | interval between. In this way, when the display panel and the optical member are sandwiched between the holding members, the opposing portions are brought into contact with each other, so that the interval between the holding members can be restricted to a predetermined value or less. Accordingly, the holding force applied to the display panel and the optical member can be stabilized.

(8) A clearance is retained between the end face of the optical member and the facing portion. Optical members often have a higher coefficient of thermal expansion than display panels, but even in this case, the optical member can be allowed to expand and contract due to thermal expansion / contraction, so that the optical member is less likely to wrinkle or bend. Become. Therefore, it is suitable for uniforming the luminance.

(9) The holding means includes a first holding portion that contacts the light emission side surface of the display panel, a second holding portion that contacts the light source side surface of the optical member, the first holding portion, and It is comprised by the holding member which consists of a connection part which connects the said 2nd holding part, and the other side is provided with the latching convex part in any one of the said 2nd holding part and the said optical member. Is provided with a locking recess for locking the locking projection. According to this configuration, the holding member is fixed in a state where the display panel and the optical member are sandwiched between the first holding portion and the second holding portion by locking the locking convex portion with the locking concave portion. Can do. As compared with a case in which a fixing member for fixing the holding member is prepared, the number of parts can be reduced and the assembling workability is excellent.

(10) A housing having a receiving portion for receiving the holding member in a state of holding the optical member and the display panel and housing the light source is provided, and an inner end position of the holding member is the receiving portion. It is set as the structure which makes the inner end position of a part the same shape, or protrudes inward from it. If it does in this way, a receiving part will be covered with a holding member from the opposite side to the light source side, and it will prevent that a shadow arises in a receiving part. Thereby, it becomes suitable for equalization of luminance.

(11) A housing is provided that has a receiving portion that receives the holding member in a state of holding the optical member and the display panel, and that houses the light source, and the receiving portion includes an outer portion of the holding member. It is set as the structure by which the positioning part which contact | abuts to an end surface and can position this is provided. In this way, the holding member holding the optical member and the display panel can be positioned with respect to the housing, and the assembly workability is excellent.

  An example of the display panel is a liquid crystal panel. Such a display device can be applied as a liquid crystal display device to various uses such as a display of a television or a personal computer, and is particularly suitable for a large screen.

  According to the present invention, it is possible to make the luminance uniform without increasing the overall thickness.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, the liquid crystal display device 10 including the liquid crystal panel 11 is illustrated. In the following description, the upper side shown in FIGS. 2 and 3 is the front side, and the lower side is the back side. In addition, a part of each drawing shows an X-axis, a Y-axis, and a Z-axis, and each axial direction is drawn to be a direction shown in each drawing.

  The liquid crystal display device 10 has a horizontally long rectangular shape along the X-axis direction as a whole. As shown in FIG. 2, a liquid crystal panel is provided on the back side (back side) of the liquid crystal panel 11 that is a display panel capable of displaying an image. A backlight device 12 that is an external light source (illumination device) capable of irradiating light toward 11 is disposed, and these are integrally held by a frame-like bezel 13 or the like. The liquid crystal panel 11 is arranged on the light emitting side with respect to the backlight device 12. The liquid crystal display device 10 can be applied to a television receiver TV. As shown in FIG. 1, a television receiver TV is a tuner T for receiving a liquid crystal display device 10, both front and back cabinets Ca and Cb accommodated with the liquid crystal display device 10 sandwiched therebetween, a power source P, and television broadcasting. And a stand S.

  As shown in FIG. 2, the liquid crystal panel 11 is interposed between a pair of transparent (translucent) glass substrates 14 and 15 having a horizontally long rectangular shape, and both the substrates 14 and 15. And a liquid crystal layer (not shown) containing liquid crystal molecules which are substances whose optical properties change along with the substrate 14 and 15 by a sealing agent (not shown) while maintaining a gap corresponding to the thickness of the liquid crystal layer. It is pasted together.

  Of the two substrates 14 and 15, the front side (front side) is the CF substrate 14, and the back side (back side) is the array substrate 15. A large number of TFTs (Thin Film Transistors) and pixel electrodes, which are switching elements, are provided side by side on the inner surface side of the array substrate 15 (the liquid crystal layer side and the surface facing the CF substrate 14). A gate wiring and a source wiring having a lattice shape are disposed around the gate. The pixel electrode is made of a transparent electrode such as ITO (Indium Tin Oxide) or ZnO (Zinc Oxide).

  As shown in FIG. 3, a plurality of terminal portions of each wiring are provided on the outer peripheral edge portion (frame portion) of the array substrate 15, and one end side of the flexible substrate 16 is connected to the terminal portions. The flexible substrate 16 is configured such that a conductive path is printed on a thin film having flexibility and a driver (electronic component) such as an LSI chip is mounted. As the flexible substrate 16, a so-called TCP (Tape Carrier Package) or SOF (System On Film) is used. A control board 17 for controlling the liquid crystal panel 11 is connected to the other end side of the flexible board 16. The flexible substrate 16 is crimped and connected to the array substrate 15 and the control substrate 17 via an ACF (Anisotropic Conductive Film). The control substrate 17 is further connected to a control substrate (not shown), and an image signal supplied therefrom can be supplied to each wiring of the array substrate 15 and each electrode of the TFT via the flexible substrate 16.

  On the other hand, a large number of color filters are arranged side by side on the CF substrate 14 at positions corresponding to the respective pixels. The color filter is arranged so that three colors of R, G, and B are alternately arranged. A light shielding layer (black matrix) for preventing color mixture is formed between the color filters. A counter electrode facing the pixel electrode on the array substrate 15 side is provided on the surface of the color filter and the light shielding layer. In addition, alignment films for aligning liquid crystal molecules contained in the liquid crystal layer are formed on the inner surfaces of both the substrates 14 and 15, respectively.

  Further, as shown in FIG. 2, polarizing plates 18 and 19 as optical elements for extracting arbitrary polarized light from light emitted from a cold cathode tube 23 as a light source are provided on the outer surface sides of both substrates 14 and 15, respectively. It is pasted. Of the polarizing plates 14 and 15, the front-side polarizing plate 18 attached to the CF substrate 14 is exposed to the outside of the front side, whereas the back-side polarizing plate 19 attached to the array substrate 15 is described later. Thus, the optical sheet 15a disposed on the back side is disposed so as to be opposed to the optical sheet 15a. An adhesive layer (not shown) is formed on the surfaces of the polarizing plates 18 and 19 facing the substrates 14 and 15.

  As shown in FIG. 2, the backlight device 12 is a so-called direct-type backlight in which a light source is disposed directly under the back surface of the liquid crystal panel 11. The backlight device 12 has a substantially box shape that opens to the front side (the liquid crystal panel 11 side). The formed chassis 20, the reflection sheet 21 laid in the chassis 20, the optical member 22 disposed in the opening portion (light emitting portion) of the chassis 20, and a plurality of cold cathode tubes 23 accommodated in the chassis 20. A rubber holder 24 fitted to both ends of each cold cathode tube 23, a pair of holders 25 that collectively cover the group of rubber holders 24 arranged in parallel, and a lamp clip that holds an intermediate portion in the cold cathode tube 23 (see FIG. (Not shown).

  The chassis 20 is made of metal and functions as a casing in the backlight device 12. The chassis 20 includes a bottom plate 20a having a horizontally long rectangular shape similar to that of the liquid crystal panel 11, and a side plate rising from the periphery of the bottom plate 20a, and is open to the light emitting side of the cold cathode tube 23. The reflection sheet 21 is made of a synthetic resin exhibiting white having excellent light reflectivity, and is laid so as to cover almost the entire inner surface of the chassis 20. The reflective sheet 21 can guide most of the light emitted from each cold cathode tube 23 to the opening side of the chassis 20.

  The optical member 22 covers the opening of the chassis 20 and is disposed on the light emitting side of the cold cathode tube 23. The optical member 22 includes a diffusion plate 22 a disposed on the front side of the cold cathode tube 23 so as to face the plurality of optical sheets 22 b disposed between the diffusion plate 22 a and the liquid crystal panel 11. The diffusion plate 22a is formed by dispersing light scattering particles in a synthetic resin plate-like member, and has a function of diffusing linear light emitted from the cold cathode tube 23 serving as a tubular light source. The optical sheet 22b disposed on the diffusion plate 22a is a laminate of a diffusion sheet, a lens sheet, and a reflective polarizing plate in order from the diffusion plate 22a side. The optical sheet 22b is emitted from the cold cathode tube 23 and passes through the diffusion plate 22a. It has a function of converting the light that has passed through into planar light.

  The cold-cathode tube 23 is a kind of linear light source (tubular light source), and is attached in the chassis 20 in a posture in which the axial direction thereof coincides with the long side direction (X-axis direction) of the chassis 20. Are arranged along the short side direction (Y-axis direction) of the chassis 20 with their axes substantially parallel and spaced apart from each other.

  The rubber holder 24 has a substantially L-shaped cross section as a whole, and a lamp mounting hole into which an end portion (non-light emitting portion) of the cold cathode tube 23 can be inserted is formed in the side surface. A plurality of rubber holders 24 are arranged along the parallel direction (Y-axis direction) of the cold cathode tubes 23 at both ends in the long side direction of the bottom plate 20a of the chassis 20.

  The holder 25 is made of a synthetic resin exhibiting white having excellent light reflectivity, and extends along the short side direction of the chassis 20 and has a substantially box shape with an open back surface. A pair of holders 25 are attached to both ends of the chassis 20 in the long side direction so that the group of rubber holders 24 arranged in parallel at the same position can be collectively covered. The inner surface 25a of the holder 25 facing the light emitting portion of the cold cathode tube 23 is formed so as to be inclined obliquely upward as shown in FIG. 2, that is, toward the optical member 22 side (light emission side). The reflection sheet 21 is placed on the inner surface 25a.

  Now, in the present embodiment, the liquid crystal panel 11 and the optical member 22 that are stacked while being opposed to each other are integrally held by the holding means in close contact with each other. As shown in FIGS. 2 and 3, this holding means is arranged on the first holding member 26 arranged on the front side (light emitting side) of the liquid crystal panel 11 and on the back side (cold cathode tube 23 side) of the optical member 22. In addition, the liquid crystal panel 11 and the optical member 22 are sandwiched between the second holding member 27 and the first holding member 26, and the screw member 28 is used to fasten and fix the holding members 26 and 27 together. Among these, the screw member 28 has a known structure, and includes a head portion and a shaft portion protruding from the head portion, and a screw thread is formed on the shaft portion.

  As shown in FIGS. 2 to 4, the first holding member 26 is formed in a frame shape along the outer peripheral edge of the liquid crystal panel 11 as a whole, and has a surface facing the front side (light emitting side) in the liquid crystal panel 11. The first holding portion 26a that is addressed, the first extending portion 26b that extends to the outside of the liquid crystal panel 11 while being connected to the first holding portion 26a, and the first holding portion 26a and the first holding portion 26b that are connected to the first extending portion 26b. It is comprised from the 1st opposing part 26c which protrudes from the 1 overhang | projection part 26b to the back side (cold-cathode tube 23 side).

  The first holding part 26a has a frame shape and overlaps with a non-display area (non-active area) where an image on the outer peripheral edge side of the liquid crystal panel 11 is not displayed in a plan view, but the display on the center side of the screen of the liquid crystal panel 11 The region (active area) is formed with a width that does not overlap. Specifically, the inner end position of the first holding unit 26a is in the non-display area and is arranged outside the boundary position between the display area and the non-display area. The back side surface of the first holding part 26 a is in contact with the front side surface of the outer peripheral edge of the liquid crystal panel 11, and this is a clamping surface for the liquid crystal panel 11.

  The first overhanging portion 26b has a frame shape that is slightly larger than the first holding portion 26a, and is disposed so as to be shifted outward from the outer peripheral end face of the liquid crystal panel 11. It is a part which does not overlap. A first screw hole 26d for passing the screw member 28 is provided at each corner position of the four corners of the first overhang portion 26b. In the first screw hole 26d, a thread groove that can be screwed into the thread of the shaft portion of the screw member 28 is formed by screwing. Further, the front end portion of the first screw hole 26d has a larger diameter than other portions that receive the shaft portion so that the head portion of the screw member 28 can be received.

  The first facing portion 26c has a frame shape that overlaps with the first overhanging portion 26b in a plan view, protrudes from the first overhanging portion 26b to the back side, and is on the outer side with respect to the outer peripheral end surface of the liquid crystal panel 11. It is arranged in an opposing manner at a shifted position. The inner peripheral surface of the first facing portion 26c is a straight face substantially parallel to the outer peripheral end surface of the liquid crystal panel 11, and the outer peripheral end surface of the liquid crystal panel 11 can come into contact therewith. There is a slight gap between the outer peripheral end face of the liquid crystal panel 11 and the inner peripheral face of the first facing portion 26c, and thus the substrates 14 and 15 of the liquid crystal panel 11 thermally expand and contract. It is allowed to expand and contract with it. Note that the expansion and contraction dimensions of the substrates 14 and 15 of the liquid crystal panel 11 are extremely small compared to those of the optical member 22 described later. The first opposing portion 26c is also formed with a first screw hole 26d following the first overhanging portion 26b. The first screw hole 26d connects the first overhanging portion 26b and the first opposing portion 26c to Z. It penetrates in the axial direction (plate thickness direction in the liquid crystal panel 11 and the optical member 22). In addition, a cutout 26e is formed over a predetermined range in one of the long side portions of the first facing portion 26c so that each flexible substrate 16 connected to the outer peripheral edge of the liquid crystal panel 11 can pass through (FIG. 3). .

  2, 3 and 5, the second holding member 27 is formed in a frame shape along the outer peripheral edge of the optical member 22 as a whole, and the back side (cold cathode) of the diffusion plate 22a of the optical member 22 is formed. A second holding portion 27a addressed to the surface facing the tube 23 side, a second overhanging portion 27b that continues to the second holding portion 27a and extends outward from the optical member 22, and a second overhanging portion 27b. The second opposing portion 27c is continuous and protrudes to the front side (light emission side).

  The second holding portion 27a has a frame shape and is superimposed on a non-display area (non-active area) where an image on the outer peripheral edge side of the optical member 22 is not displayed in a plan view, but is displayed on the center side of the screen of the optical member 22 The region (active area) is formed with a width that does not overlap. Specifically, the inner end position of the second holding portion 27a is in the non-display area, and is disposed outside the boundary position between the display area and the non-display area. The inner end of the first holding section 26a described above. It is almost flush with the position. The front-side surface of the second holding portion 27 a is in contact with the back-side surface of the outer peripheral edge of the optical member 22, and this is the clamping surface for the optical member 22.

  The second overhanging portion 27b has a frame shape that is slightly larger than the second holding portion 27a, and is disposed so as to be shifted outward from the outer peripheral end face of the optical member 22, and is viewed from a plane with respect to the optical member 22. It is a part which does not overlap. A second screw hole 27d for allowing the screw member 28 to pass therethrough is provided at each corner position of the four corners of the second projecting portion 27b. In the second screw hole 27d, a screw groove that can be screwed into the thread of the shaft portion of the screw member 28 is formed. The second screw hole 27d is a first screw on the first holding member 26 side when the holding members 26 and 27 are aligned in the X-axis direction and the Y-axis direction (the surface direction of the liquid crystal panel 11 and the optical member 22). The screw hole 26d is aligned.

  The second facing portion 27c has a frame shape that overlaps with the second overhanging portion 27b in a plan view, protrudes from the second overhanging portion 27b to the front side, and is outside of the outer peripheral end surface of the optical member 22. It is arranged in an opposing manner at a shifted position. The inner peripheral surface of the second facing portion 27c is a straight face substantially parallel to the outer peripheral end surface of the optical member 22, and the outer peripheral end surface of the optical member 22 can be brought into contact therewith. A predetermined clearance C is provided between the outer peripheral end surface of the optical member 22 and the inner peripheral surface of the second facing portion 27c, so that the optical member 22 expands and contracts as it thermally expands and contracts. Is allowed. Here, since the optical member 22 has an extremely high coefficient of thermal expansion and a large expansion / contraction dimension as compared with the glass substrates 14 and 15 forming the liquid crystal panel 11, the clearance C described above is formed between the first facing portion 26c and the liquid crystal. It is set to be much larger than the gap between the panel 11. The second opposing portion 27c is also formed with a second screw hole 27d following the second overhanging portion 27b. The second screw hole 27d connects the second overhanging portion 27b and the second opposing portion 27c to Z. It penetrates in the axial direction.

  In a state where both the holding members 26 and 27 are assembled while the liquid crystal panel 11 and the optical member 22 are sandwiched between the both holding portions 26a and 27a, the stacked liquid crystal panel 11 and the optical member 22 are in close contact with each other as shown in FIG. Since the liquid crystal panel 11 and the optical member 22 are integrally held in this state, they cannot be displaced relative to each other in the plane direction, that is, the X-axis direction and the Y-axis direction. At this time, the surface on the back side (opposite to the light emitting side) of the polarizing plate 19 on the back side is the front side (light emitting side) of the optical sheet 15a (reflective polarizing plate) arranged opposite to the back side. It is in contact with the surface with almost no gap. In this assembled state, the abutting surfaces of the opposing portions 26c and 27c, that is, the back surface of the first opposing portion 26c and the front surface of the second opposing portion 27c are brought into contact with each other, so that the holding members 26 , 27 is prevented from approaching further, in other words, the distance between the holding portions 26a, 27a is restricted to a certain size or less. In this assembled state, both the inner and outer peripheral surfaces of the opposing portions 26c and 27c are substantially flush with each other.

  By the way, as described above, when the panel unit U in which the liquid crystal panel 11 and the optical member 22 are sandwiched between the holding members 26 and 27 is incorporated in the liquid crystal display device 10, the chassis 20, the holder 25, and the bezel 13. It is designed to be sandwiched between them. Here, the surface facing the front side (optical member 22 side) of the holder 25 is formed in a stepped shape (stepped shape) by forming a stepped portion 25b projecting to the front side on the outer side portion, An inner portion connected to the inner surface 25a serves as a receiving portion 29 capable of receiving the second holding member 27 on the back side. In addition, between the 2nd holding member 27 and the receiving part 29, the edge part 21a of the reflective sheet 21 riding on the inner surface 25a is interposed. The inner end position of the second holding member 27 is disposed so as to protrude inward from the inner end position (outer end position of the inner surface 25a) of the receiving portion 29, that is, toward the center of the screen. Further, the side surface facing inward in the step portion 25 b comes into contact with the outer surface of the second holding member 27, so that the panel unit U can be positioned. Although not shown in the drawings, a side plate along the long side direction of the chassis 20 is provided with a receiving portion and a positioning portion similar to the above-described holder 25, and these are the receiving portion 29 and the positioning portion 30. By cooperating with, positioning of the panel unit U in the X-axis direction, the Y-axis direction, and the Z-axis direction can be achieved. The back side surface of the bezel 13 is directed to the front side surface of the first holding member 26.

  This embodiment has the structure as described above, and the operation thereof will be described subsequently. In manufacturing the liquid crystal display device 10, the liquid crystal panel 11 manufactured by a known manufacturing method is integrated with the optical member 22 that is a part of the backlight device 12 by the holding means to obtain the panel unit U. The unitization work will be described in detail below.

  From the state shown in FIG. 3, the diffusion plate 22 a and the optical sheet 22 b that form the optical member 22 are accommodated in the second holding member 27 in a predetermined order, and are stacked on each other. Thereafter, in a state where the liquid crystal panel 11 is laminated on the front side of the optical member 22, the first holding member 26 is sandwiched from the front side.

  In this process, the inner peripheral end surface of the second facing portion 27c hits the outer peripheral end surface of the optical member 22, and the optical member 22 moves indefinitely in the X axis direction and the Y axis direction with respect to the second holding member 27. It is possible to regulate, and this establishes a rough positional relationship between the two. Similarly, the positional relationship of the liquid crystal panel 11 with respect to the first holding member 26 is determined by the inner peripheral end face of the first facing portion 26c hitting the outer peripheral end face of the liquid crystal panel 11. Further, each flexible substrate 16 protruding from the outer edge portion of the liquid crystal panel 11 is drawn out of both the holding members 26 and 27 by passing through the notch 26e of the first holding member 26.

  After that, when both holding members 26 and 27 are aligned in the X-axis direction and the Y-axis direction, and both screw holes 26d and 27d are aligned, the screw member 28 is tightened in each screw hole 26d and 27d. When both the holding members 26 and 27 are fixed by the screw member 28, the liquid crystal panel 11 and the optical member 22 sandwiched between the both holding portions 26a and 27a are integrally held in close contact (FIG. 2). At this time, the holding force (clamping force) applied to the liquid crystal panel 11 and the optical member 22 can be adjusted by adjusting the tightening force of the screw member 28, so that the holding force can be set to an appropriate magnitude. In addition, the abutting surfaces of the opposing portions 26c and 27c are brought into contact with each other, whereby the distance between the holding portions 26a and 27a, that is, the thickness of the storage space for the liquid crystal panel 11 and the optical member 22 is reduced to a certain value or less. For example, even if the screw member 28 is erroneously tightened with an excessive tightening force, it is possible to prevent an excessive load from acting on the liquid crystal panel 11 and the optical member 22.

  While performing the unitization work of the liquid crystal panel 11 and the optical member 22 described above, the components of the backlight device 12 excluding the optical member 22 are assembled. The reflection sheet 21 is laid on the bottom plate 20 a of the chassis 20 and each lamp clip is attached. Thereafter, each cold cathode tube 23 is accommodated in the chassis 20 and attached. Then, the holders 25 are attached to both end portions on the long side of the chassis 20. At this time, the end portion 21 a of the reflection sheet 21 is placed on the holder 25 and the receiving portion 29 of the chassis 20.

  After assembling the components to the chassis 20 as described above, the operation of placing the panel unit U on the holder 25 and the receiving portion 29 of the chassis 20 is performed. At this time, the panel unit U is positioned in the X-axis direction and the Y-axis direction by bringing the outer peripheral surface of the second holding member 27 into contact with the positioning unit 30 of the holder 25 and the chassis 20. Thereafter, when the bezel 13 is assembled from the front side of the panel unit U, the panel unit U is sandwiched between the inner end portion of the bezel 13 and the receiving portion 29 of the holder 25 as shown in FIG.

  When an image is displayed on the liquid crystal display device 10 assembled as described above, each cold cathode tube 23 of the backlight device 12 is turned on and an image signal is supplied to the liquid crystal panel 11. At this time, the linear light emitted from the cold cathode tube 23 is irradiated to the optical member 22 directly or after being reflected by the reflection sheet 21 and is planar in the process of passing through the optical member 22. It is converted into light and then irradiated onto the liquid crystal panel 11.

  Here, since the second holding portion 27 a of the second holding member 27 protrudes inward from the receiving portion 29, the entire area of the front side surface of the receiving portion 29 is covered by the second holding member 287. Become. Therefore, when the cold cathode tube 23 is turned on, a shadow on the front side surface of the receiving portion 29 is prevented. Thereby, the brightness | luminance of the backlight apparatus 12 is equalized.

  Further, when the cold cathode tube 23 is turned on or off, the temperature in the backlight device 12 changes, and accordingly, each component of the liquid crystal display device 10 undergoes thermal expansion / contraction. At this time, the optical member 22 having a particularly high coefficient of thermal expansion has a large expansion / contraction dimension due to thermal expansion / contraction, but the outer peripheral end surface of the optical member 22 and the second holding member 27 sandwiching the second end. Since a predetermined clearance C is ensured between the facing portion 27c, the optical member 22 is allowed to expand and contract within the clearance C range. Thereby, it is possible to prevent the optical member 22 from being wrinkled or bent. In addition, if the tightening force of the screw member 28 is adjusted to an appropriate magnitude in advance, the holding force from the screw member 28 does not hinder the expansion and contraction of the optical member 22.

  By the way, when the liquid crystal display device 10 having the above-described configuration is transported and transported, vibrations act. According to the present embodiment, the liquid crystal panel 11 and the optical member 22 are brought into close contact with each other by the holding means. And are held so that they cannot be displaced relative to each other in the X-axis direction and the Y-axis direction. Therefore, the opposing surfaces of the polarizing plate 19 on the back side of the liquid crystal panel 11 and the optical sheet 22b (reflective polarizing plate) of the optical member 22 facing the polarizing plate 19 are not rubbed, and similarly, Rubbing does not occur between the opposing surfaces of the optical sheets 22b facing each other or between the opposing surfaces of the optical sheet 22b and the diffusion plate 22a. This prevents the polarizing plate 19 on the back side of the liquid crystal panel 11 and the surface of the optical sheet 22b facing the polarizing plate 19 from being damaged. Similarly, the surface of each optical sheet 22b and the diffusion plate 22a is prevented from being damaged.

  As described above, the liquid crystal display device 10 of this embodiment includes the cold cathode tube 23, the planar optical member 22 disposed on the light emitting side of the cold cathode tube 23, and the light emitting side of the optical member 22. The liquid crystal panel 11 that performs display using the emitted light, and holding means that integrally holds the liquid crystal panel 11 and the optical member 22 in close contact with each other.

  In this way, since the liquid crystal panel 11 and the optical member 22 are held in close contact with each other by the holding means, compared to a conventional case in which a gap is provided between the liquid crystal panel and the optical member, A wide space between the cold cathode tube 23 and the optical member 22 can be secured without increasing the thickness of the entire liquid crystal display device 10. Thereby, the image of the cold cathode tube 23 becomes difficult to be visually recognized, and the luminance can be made uniform. In addition, since the liquid crystal panel 11 and the optical member 22 which are in close contact with each other are integrally held by the holding means, it is possible to prevent rubbing between the liquid crystal panel 11 and the optical member 22 due to the influence of vibration or the like. . Thereby, high display quality can be obtained.

  The holding means includes a pair of holding members 26 and 27 that can hold the liquid crystal panel 11 and the optical member 22, and a screw member 28 that is a fixing member that fixes the holding members 26 and 27. In this way, the holding members 26 and 27 in a state where the liquid crystal panel 11 and the optical member 22 are sandwiched are fixed by the screw members 28, so that the liquid crystal panel 11 and the optical member 22 are integrally brought into close contact with each other. Can be held. Further, since the screw member 28 is used as the fixing member, the tightening force applied to the holding members 26 and 27 can be freely adjusted.

  Further, the holding members 26 and 27 are formed in a frame shape along the outer peripheral edges of the liquid crystal panel 11 and the optical member 22. By doing so, the liquid crystal panel 11 and the optical member 22 can be reinforced by the holding members 26 and 27 having a frame shape.

  Further, the screw member 28 is disposed at a corner position in the holding members 26 and 27 having a frame shape. In this way, the frame-shaped holding members 26 and 27 can be efficiently fixed.

  The holding members 26 and 27 are provided with protruding portions 26b and 27b that protrude outward from the liquid crystal panel 11 and the optical member 22. The screw members 28 are passed through the protruding portions 26b and 27b. Screw holes 26d and 27d are formed. In this way, it is not necessary to form a hole for passing the screw member 28 through the liquid crystal panel 11 and the optical member 22. Further, the load on the liquid crystal panel 11 and the optical member 22 accompanying the tightening of the screw member 28 can be reduced.

  Further, the holding members 26 and 27 are provided with opposing portions 26c and 27c arranged to face the end surfaces of the liquid crystal panel 11 and the optical member 22, respectively. In this way, when the liquid crystal panel 11 and the optical member 22 are sandwiched between the holding members 26 and 27, the opposing portions 26c and 27c abut against the end surfaces of the liquid crystal panel 11 and the optical member 22, so that the holding member The positional relationship between the liquid crystal panel 11 and the optical member 22 with respect to 26 and 27 can be regulated.

  The opposing portions 26c and 27c are provided on the holding members 26 and 27, respectively. In the state where the liquid crystal panel 11 and the optical member 22 are sandwiched between the holding members 26 and 27, the opposing portions 26c and 27c are provided. The distance between the holding members 26 and 27 can be regulated by contacting each other. In this way, when the liquid crystal panel 11 and the optical member 22 are sandwiched between the holding members 26 and 27, the opposing portions 26c and 27c come into contact with each other, so that the distance between the holding members 26 and 27 is constant. It can be controlled to become below. Accordingly, the holding force applied to the liquid crystal panel 11 and the optical member 22 can be stabilized.

  A clearance C is held between the end face of the optical member 22 and the facing portions 26c and 27c. The optical member 22 often has a higher coefficient of thermal expansion than the liquid crystal panel 11, but even in that case, the optical member 22 can be allowed to expand and contract due to thermal expansion / contraction due to the clearance C. And bending is less likely to occur. Therefore, it is suitable for uniforming the luminance.

  In addition, a holder 25 and a chassis 20 are provided which have a receiving portion 29 for receiving the second holding member 27 in a state where the optical member 22 and the liquid crystal panel 11 are held, and which accommodate the cold cathode tube 23. The inner end position of 27 protrudes inward from the inner end position of the receiving portion 29. In this way, the receiving part 29 is covered with the second holding member 27 from the side opposite to the cold cathode tube 23 side, and the receiving part 29 is prevented from being shaded. Thereby, it becomes suitable for equalization of luminance.

  Further, a holder 25 and a chassis 20 are provided, which have a receiving portion 29 that receives the second holding member 27 in a state of holding the optical member 22 and the liquid crystal panel 11, and that accommodates the cold cathode tube 23. Is provided with a positioning portion 30 that can contact and position the outer end surface of the second holding member 27. In this way, the holding members 26 and 27 holding the optical member 22 and the liquid crystal panel 11 can be positioned with respect to the holder 25 and the chassis 20, and the assembling workability is excellent.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIG. In this Embodiment 2, what changed the positional relationship of 2nd holding member 27-A and receiving part 29-A is shown. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and the suffix -A is added to the end thereof, and the description of the structure, operation, and effect is omitted. .

  As shown in FIG. 6, the inner end position of the second holding member 27-A is set to be substantially flush with the inner end position of the receiving portion 29-A. That is, the second holding portion 27a-A of the second holding member 27-A does not protrude inward from the receiving portion 29-A and covers the entire area of the front side surface of the receiving portion 29-A. It will be. Accordingly, it is possible to prevent the receiving portion 29-A from being shaded, and the second holding member 27-A itself is difficult to become a shadow, which is extremely suitable for uniform luminance.

  As described above, according to the present embodiment, the chassis having the receiving portion 29-A that receives the second holding member 27-A that holds the optical member 22 and the liquid crystal panel 11, and that houses the cold cathode tube 23. 20 and the inner end position of the second holding member 27-A is flush with the inner end position of the receiving portion 29-A. In this way, the receiving portion 29-A is covered with the second holding member 27-A from the side opposite to the cold cathode tube 23 side, and it is possible to prevent the receiving portion 29-A from being shaded. . Thereby, it becomes suitable for equalization of luminance.

<Embodiment 3>
A third embodiment of the present invention will be described with reference to FIG. In this Embodiment 3, what changed further the positional relationship of 2nd holding member 27-B and receiving part 29-B is shown. In the third embodiment, the same reference numerals are used for the parts changed from the first embodiment and the suffix -B is added at the end thereof, and redundant description of the structure, operation, and effect is omitted. .

  As shown in FIG. 7, the inner end position of the second holding member 27-B is set to be outside the inner end position of the receiving portion 29-B. That is, the front side surface of the receiving portion 29-B is in an exposed state on the front side while the outer side portion is covered with the second holding member 27-B. Even with such a configuration, for example, by setting the inner end position of the bezel 13-B to an appropriate position, it is possible to make it difficult to visually recognize the shadow generated in the receiving portion 29-B.

<Embodiment 4>
A fourth embodiment of the present invention will be described with reference to FIG. 8 or FIG. In the fourth embodiment, the holding member 31 constituting the holding means is made into one part and the fixing method is changed. In the fourth embodiment, the same reference numerals are used for the parts changed from the first embodiment and the suffix -C is added to the end thereof, and redundant description of the structure, operation, and effect is omitted. .

  As shown in FIG. 8, the holding member 31 includes a first holding portion 31a addressed to the front surface of the liquid crystal panel 11, and a second address addressed to the back surface of the diffusion plate 22a-C among the optical members 22-C. The holding portion 31b and a connecting portion 31c that connects the outer ends of the holding portions 31a and 31b are formed, and the cross-sectional shape is substantially a gate shape. As shown in FIG. 9, the holding member 31 is configured to extend along the short side direction of the liquid crystal panel 11 and the optical member 22 -C, and at both ends of the liquid crystal panel 11 and the optical member 22 -C in the long side direction. Each one can be attached. Of the holding member 31, a locking convex portion 31 d that protrudes to the front side is provided on the front side surface of the second holding portion 31 b, that is, the surface facing the diffusion plate 22 a -C. The locking convex portion 31d is disposed at the inner end position of the second holding portion 31b. On the other hand, a locking recess 32 to which the locking projection 31d can be locked is formed on the back surface of the diffusion plate 22a-C, that is, the surface facing the second holding portion 31b. The distance between the holding portions 31a and 31b is set to be substantially the same as or slightly smaller than the thickness dimension of the liquid crystal panel 11 and the optical member 22-C in a stacked state.

  In order to integrate the liquid crystal panel 11 and the optical member 22-C with the holding member 31, as shown in FIG. 10, in a state where the liquid crystal panel 11 and the optical member 22-C are stacked on each other, the holding members are formed from both sides. 31 is attached. Then, the edge part of the long side direction in the liquid crystal panel 11 and the optical member 22-C is sandwiched between the first holding part 31a and the second holding part 31b. When the holding member 31 is pushed to the normal depth, as shown in FIG. 9, the holding projection 31d is locked to the locking recess 32, so that the holding member 31 is attached to the optical member 22-C. Kept in a state. In this state, the liquid crystal panel 11 and the optical member 22-C are sandwiched between the holding portions 31a and 31b, so that the liquid crystal panel 11 and the optical member 22-C are integrally held so as not to be relatively displaced.

  As described above, according to the present embodiment, the holding means is in contact with the first holding portion 31a that contacts the light emitting side surface of the liquid crystal panel 11 and the surface of the optical member 22-C on the cold cathode tube 23 side. The holding member 31 includes a second holding portion 31b that is in contact with the first holding portion 31a and a connecting portion 31c that connects the second holding portion 31b. The second holding portion 31b includes a locking convex portion 31d. In contrast, the optical member 22-C is provided with a locking recess 32 in which the locking protrusion 31d is locked. If it does in this way, the liquid crystal panel 11 and the optical member 22-C were clamped between the 1st holding | maintenance part 31a and the 2nd holding | maintenance part 31b by making the latching convex part 31d latch to the latching recessed part 32. The holding member 31 can be fixed to the state. As in the first to third embodiments described above, the number of parts can be reduced and the assembly workability is excellent as compared with the case in which the screw member 28 is prepared as a fixing member for fixing the holding members 26 and 27.

<Embodiment 5>
A fifth embodiment of the present invention will be described with reference to FIG. 10 or FIG. In the fifth embodiment, a modified fixing member 33 for fixing both holding members 26-D and 27-D is shown. In the fifth embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and suffixed with -D at the end thereof, and redundant description of the structure, operation, and effect is omitted. .

  As shown in FIG. 10, the first holding member 26 -D and the second holding member 27 are disposed outside the first holding member 26 -D and the second holding member 27 -D that sandwich the liquid crystal panel 11 and the optical member 22. A fixing member 33 is attached so as to surround D in a lump. The fixing member 33 includes a first fixing portion 33a addressed to the front surface of the first holding member 26-D, a second fixing portion 33b addressed to the back surface of the second holding member 27-D, and both fixing portions. It is comprised from the connection part 33c which connects the outer end parts of 33a, 33b, and the cross-sectional shape has comprised the substantially gate shape. As shown in FIG. 11, the fixing member 33 is attached to the corner positions of the four corners of the two holding members 26-D and 27-D having a frame shape. The connecting portion 33c is L-shaped along the corner portions of the holding members 26-D and 27-D, and connects the two outward sides of the first fixing portion 33a and the second fixing portion 33b. . In addition, the distance between the two fixing portions 33a and 33b is set to be slightly smaller than the thickness dimension of the two holding members 26-D and 27-D in the assembled state.

  The assembly procedure will be described. When the liquid crystal panel 11 and the optical member 22 are sandwiched between the holding members 26-D and 27-D by the method described in the first embodiment, each of the holding members 26-D and 27-D. The operation of attaching the fixing member 33 to each corner position is performed. Then, the corner portions of the holding members 26-D and 27-D are sandwiched between the fixing portions 33a and 33b of the fixing member 33. At this time, the fixing portions 33a and 33b are elastically expanded. By holding both the holding members 26 -D and 27 -D, a desired holding force can be applied to the liquid crystal panel 11 and the optical member 22.

  According to the present embodiment, since the screw member 28 is not used as the fixing member as in the first to third embodiments, the protruding portions 26b-D, 27b- of the both holding members 26-D, 27-D are used. It is not necessary to form a screw hole in D, and the installation space for the screw hole can be reduced. Therefore, it is suitable for narrowing the frame.

<Embodiment 6>
A sixth embodiment of the present invention will be described with reference to FIG. In the sixth embodiment, the positions of the screw member 28-E and the screw holes 26d-E and 27d-E are changed. In the sixth embodiment, parts changed from the first embodiment are denoted by the same reference numerals and suffixed with the suffix -E, and redundant description of the structure, action, and effect is omitted. .

  As shown in FIG. 12, the first screw hole 26d-E to which the screw member 28-E is fastened is formed in the first holding portion 26a-E of the first holding member 26-E. Similarly, the second screw hole 27d-E is formed in the second holding portion 27a-E of the second holding member 27-E. Then, screw insertion holes so that the screw members 28-E can be passed through the corner portions of the liquid crystal panel 11-E and the optical member 22-E so as to pass through the screw holes 26d-E, 27d-E. 34 are provided. In the liquid crystal panel 11-E, the screw insertion hole 34-E is provided in a non-display area and at a position avoiding the liquid crystal layer.

  In this way, the installation spaces for the screw holes 26d-E and 27d-E are not required for the overhang portions 26b-E and 27b-E in the holding members 26-E and 27-E. The overhang dimension of each of the overhang portions 26b-E and 27b-E can be reduced, which is suitable for narrowing the frame.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In each of the above-described embodiments, the optical member is exemplified by one diffusing plate and three optical sheets. However, for example, the number of optical sheets and the stacking order can be appropriately changed. The type of the optical sheet can be changed as appropriate. Accordingly, the optical sheet that is in close contact with the polarizing plate on the back side of the liquid crystal panel is not limited to the reflective polarizing plate, and may be a lens sheet, a diffusion sheet, or the like.

  (2) In the above-described first to third, first, third, fifth, and sixth embodiments, the holding members are formed in a frame shape. It is good also as a shape. In that case, it is preferable to use a plurality of holding members that do not have a frame shape. In addition, both the holding members may have a shape other than the frame shape (planar gate type, L shape, or straight shape). In that case, the shape of the two holding members in plan view may be different.

  (3) In the above-described first to third, first, fifth, and sixth embodiments, the case where the opposing portions are provided on both the holding members has been shown, but the opposing portion may be provided only on one of the holding members. . Moreover, what abbreviate | omitted the opposing part is also contained in this invention.

  (4) In the above-described Embodiments 5 and 6, the protruding portion and the facing portion may be omitted from both holding members. In this way, further narrowing of the frame can be achieved.

  (5) In Embodiments 1 to 3 and 6 described above, the case where screw holes having thread grooves are formed in both holding members has been shown. For example, holes that do not have screw grooves are formed in both holding members. 2 A nut to which the screw member is fastened may be disposed on the back side of the holding member, and such a member is also included in the present invention.

  (6) In the fourth embodiment described above, the case where the locking convex portion is provided on the holding member side and the locking concave portion is provided on the optical member side is shown. Conversely, the locking convex portion is provided on the optical member side. A structure in which a locking recess is provided on the side is also included in the present invention. In addition, a locking projection or a locking recess may be provided in the first holding portion of the holding member, and a locking recess or a locking projection may be provided in the liquid crystal panel.

  (7) In each of the embodiments described above, the clearance between the end face of the optical member and the holding member is shown. For example, when a material having a low coefficient of thermal expansion is used as the material of the optical member, It is good also as a setting which eliminates clearance.

  (8) In each of the above embodiments, the receiving portion is provided on the holder and the chassis. However, for example, when the holder is installed in a frame shape on the chassis, the receiving portion is provided only on the holder. It may be. Conversely, in a backlight device in which the holder is omitted, the receiving portion may be provided only on the chassis.

  (9) In each of the above-described embodiments, the end portion of the reflection sheet is sandwiched between the holding member and the receiving portion, but the end portion of the reflection sheet is not sandwiched, and the holding member is directly received by the receiving portion. What is received is also included in the present invention.

  (10) In each of the above-described embodiments, the case where a cold cathode tube, which is a linear light source, is used as the light source is shown. However, for example, those using other types of linear light sources such as a hot cathode tube are also included in the present invention. It is. Further, the present invention includes a point light source such as an LED (light emitting diode) as a light source.

  (11) In each of the embodiments described above, a TFT is used as a switching element of a liquid crystal display device. However, the present invention can also be applied to a liquid crystal display device using a switching element other than TFT (for example, a thin film diode (TFD)). In addition to the liquid crystal display device for display, the present invention can also be applied to a liquid crystal display device for monochrome display.

  (12) In each of the above-described embodiments, the liquid crystal display device using the liquid crystal panel as the display panel has been exemplified. However, the present invention can also be applied to display devices using other types of display panels.

  (13) In each of the above-described embodiments, the television receiver provided with the tuner is exemplified. However, the present invention can be applied to a display device that does not include the tuner.

1 is an exploded perspective view showing a schematic configuration of a television receiver according to Embodiment 1 of the present invention. Cross section of liquid crystal display Exploded perspective view showing outline of holding means for holding liquid crystal panel and optical member Plan view of the first holding member Plan view of second holding member Sectional drawing which shows the holding means in the liquid crystal display device which concerns on Embodiment 2 of this invention. Sectional drawing which shows the holding means in the liquid crystal display device which concerns on Embodiment 3 of this invention. Sectional drawing which shows the holding means in the liquid crystal display device which concerns on Embodiment 4 of this invention. Exploded plan view of liquid crystal panel and holding member Sectional drawing which shows the holding means in the liquid crystal display device which concerns on Embodiment 5 of this invention. The top view which shows the state which assembled | attached the holding member and the fixing member to the liquid crystal panel and the optical member Sectional drawing which shows the holding means in the liquid crystal display device which concerns on Embodiment 6 of this invention.

Explanation of symbols

10. Liquid crystal display device (display device)
11 ... Liquid crystal panel (display panel)
20 ... Chassis (housing)
22 ... Optical member 23 ... Cold cathode tube (light source)
25 ... Holder (housing)
26: First holding member (holding means)
26b ... 1st overhang part (overhang part)
26c ... 1st opposing part (opposing part)
26d ... 1st screw hole (hole)
27. Second holding member (holding means)
27b ... 2nd overhang part (overhang part)
27c ... 2nd opposing part (opposing part)
27d ... Second screw hole (hole)
28 ... Screw member (holding means, fixing member)
29 ... receiving part 30 ... positioning part 31 ... holding member (holding means)
31a ... 1st holding part 31b ... 2nd holding part 31c ... Connecting part 31d ... Locking convex part 32 ... Locking recessed part 33 ... Fixing member (holding means)
C ... Clearance TV ... TV resin equipment

Claims (14)

A light source, a planar optical member disposed on the light emitting side of the light source, a display panel disposed on the light emitting side of the optical member and performing display using the emitted light, the display panel, and And a holding unit that integrally holds the optical members in close contact with each other. The display device according to claim 1, wherein the holding unit includes a pair of holding members that can hold the display panel and the optical member, and a fixing member that fixes both the holding members. The display device according to claim 2, wherein at least one of the holding members is formed in a frame shape along an outer peripheral edge of the display panel or the optical member. The display device according to claim 3, wherein the fixing member is disposed at a corner position of the holding member having a frame shape. The display device according to claim 2, wherein the fixing member is a screw member that fastens the both holding members. The both holding members are provided with an overhanging portion that projects outward from the display panel and the optical member, and the overhanging portion is formed with a hole through which the screw member is passed. The display device described. 7. The apparatus according to claim 2, wherein at least one of the holding members is provided with a facing portion that is arranged to face the end surface of the display panel or the optical member. The display device described. The opposing portions are provided on the two holding members, respectively, and the opposing portions abut against each other in a state where the display panel and the optical member are sandwiched between the two holding members. The display device according to claim 7, which can be regulated. The display device according to claim 7, wherein a clearance is retained between an end surface of the optical member and the facing portion. The holding means includes a first holding portion that comes into contact with a light emission side surface of the display panel, a second holding portion that comes into contact with the light source side surface of the optical member, the first holding portion, and the second holding portion. It is comprised by the holding member which consists of a connection part which connects a holding part,
One of the second holding part and the optical member is provided with a locking convex part, whereas the other side is provided with a locking concave part for locking the locking convex part. The display device according to claim 1. A housing having a receiving portion for receiving the holding member in a state of holding the optical member and the display panel and housing the light source;
11. The display device according to claim 2, wherein an inner end position of the holding member is flush with an inner end position of the receiving portion or protrudes inward thereof. A housing having a receiving portion for receiving the holding member in a state of holding the optical member and the display panel and housing the light source;
The display device according to any one of claims 2 to 11, wherein the receiving portion is provided with a positioning portion capable of abutting and positioning the outer end surface of the holding member. The display device according to claim 1, wherein the display panel is a liquid crystal panel in which liquid crystal is sealed between a pair of substrates. A television receiver comprising the display device according to any one of claims 1 to 13.

Images