[go: up one dir, main page]

WO2020062558A1 - Structure de polarisation et dispositif d'affichage - Google Patents

Structure de polarisation et dispositif d'affichage Download PDF

Info

Publication number
WO2020062558A1
WO2020062558A1 PCT/CN2018/119254 CN2018119254W WO2020062558A1 WO 2020062558 A1 WO2020062558 A1 WO 2020062558A1 CN 2018119254 W CN2018119254 W CN 2018119254W WO 2020062558 A1 WO2020062558 A1 WO 2020062558A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
refractive index
light
polarizing
compensation film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/119254
Other languages
English (en)
Chinese (zh)
Inventor
康志聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
Original Assignee
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Publication of WO2020062558A1 publication Critical patent/WO2020062558A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers

Definitions

  • the present application relates to the field of display, and in particular to a polarizing structure and a display device.
  • the display device is generally composed of a backlight module and a display panel placed on the backlight module.
  • the backlight module provides incident light for the display panel.
  • the incident light is usually concentrated and incident on the display panel. Therefore, when viewing the display screen in the frontal direction, It can obtain better display image quality, but when viewing the display screen in the side view direction, the image quality is poor and the color cast is more serious, which makes the viewing angle of normal display smaller.
  • a polarizing structure is provided according to various embodiments of the present application.
  • a polarizing structure includes:
  • a supporting film having a first refractive index having a light incident surface and a light emitting surface opposite to the light incident surface, and a plurality of grooves are formed on the light emitting surface;
  • An optical compensation film is formed with a plurality of convex structures matching the shape and size of the groove, and the width of each of the convex structures is smaller than or close to the wavelength of incident light, and the optical compensation film is attached to the support.
  • the light-emitting surface of the film, and each of the convex structures is received in the corresponding groove, the optical compensation film has a second refractive index, and the first refractive index is greater than the second refractive index;
  • a polarizing film provided on the optical compensation film
  • a phase compensation film is provided on the polarizing film.
  • the polarizing structure includes a polarizing film and a supporting film that supports and protects the polarizing film. If the surface of each layer of the polarizing structure is flat and perpendicular to the normal incident light, most of the When the incident light is perpendicularly incident on the polarizing structure, it is still emitted vertically, and most of the light energy is concentrated in the positive viewing angle, which results in a good quality of the front panel and a poor viewing angle of the display panel. In this solution, a groove is formed on the supporting film of the polarizing structure, and an optical compensation film is stacked on the supporting film.
  • the optical compensation film is formed with a plurality of convex structures matching the grooves, and the optical compensation film is formed. It is closely attached to the support film without gaps.
  • the raised structure is contained in the groove.
  • the support film has a first refractive index
  • the optical compensation film has a second refractive index
  • the first refractive index is greater than the second refractive index, that is, light is incident perpendicularly.
  • the process of penetrating the support film and entering the optical compensation film is a process from light dense to light dense.
  • a plurality of convex structures are formed on the side of the optical compensation film that is in contact with the supporting film. The width of each convex structure is smaller than or close to the wavelength of the incident light.
  • the rising structure is equivalent to a grating, and the light incident on the convex structure will be diffracted, thereby changing the propagation path of the light, dispersing the vertically incident light to the side viewing angle, and improving the image quality of the side viewing angle.
  • a width of each of the protruding structures is greater than or equal to 300 nm and less than or equal to 1000 nm.
  • each of the convex structures is an elongated convex structure, and each of the elongated convex structures is arranged side by side.
  • each of the convex structures is arranged in a two-dimensional matrix array, and the length and width of each of the convex structures are both smaller than or close to the wavelength of incident light.
  • the polarizing film has a transmission axis
  • the optical compensation film is a single optical axis liquid crystal film
  • an optical axis of the single optical axis liquid crystal film is perpendicular to the transmission axis
  • the second The refractive index is the normal refractive index of the single optical axis liquid crystal film.
  • the single-optical axis liquid crystal film is a single-optical axis A-compensation film, and the single-optical axis A-compensation film is filled with nematic liquid crystal, and the optical axes of the nematic liquid crystal are parallel On the light incident surface and perpendicular to the transmission axis, the second refractive index is a normal refractive index of the A-compensation film.
  • the single-optical axis liquid crystal film is a single-optical axis C-compensation film
  • the single-optical axis C-compensation film is filled with a dish-shaped liquid crystal, and an optical axis of the dish-shaped liquid crystal is perpendicular to the substrate.
  • the light incident surface is perpendicular to the transmission axis
  • the second refractive index is a normal refractive index of the C-compensation film.
  • the support film comprises a cellulose triacetate support film.
  • the support film includes a polyethylene terephthalate support film.
  • the support film includes a polymethyl methacrylate support film.
  • the polarizing film includes a polyvinyl alcohol film.
  • the first refractive index is greater than 1.0 and less than 2.5.
  • the second refractive index is greater than 1.0 and less than 2.5.
  • a difference between the first refractive index and the second refractive index is greater than 0.01 and less than 1.5.
  • the center-to-center distance between adjacent raised structures is less than or equal to the opening width of a single pixel.
  • each of the raised structures is arranged periodically.
  • another polarizing structure is provided.
  • a polarizing structure includes:
  • a supporting film having a first refractive index having a light incident surface and a light emitting surface opposite to the light incident surface, and a plurality of grooves are formed on the light emitting surface;
  • An optical compensation film is formed with a plurality of convex structures that match the shape and size of the grooves.
  • Each of the convex structures is arranged in a two-dimensional matrix array, and the length and width of each of the convex structures are less than or
  • the wavelength of the incident light is close to the center distance between adjacent convex structures is smaller than or equal to the opening width of a single pixel.
  • the optical compensation film is adhered to the light exit surface of the support film, and Convex structures are received in the corresponding grooves, the optical compensation film has a second refractive index, and the first refractive index is greater than the second refractive index;
  • a polarizing film provided on the optical compensation film
  • a phase compensation film is provided on the polarizing film.
  • each pixel opening corresponds to at least one convex structure to deflect the pixel light, which can deflect most of the light incident perpendicularly to the display panel to various side viewing angles in a two-dimensional plane, and distribute the energy of the positive viewing angle to Side view, thereby improving the quality of the side view.
  • a display device is provided according to various embodiments of the present application.
  • a display device includes:
  • Backlight module set to provide light source
  • a display panel is placed on one side of the backlight module and is set as a display screen
  • the display panel includes a polarizing structure, and the polarizing structure includes:
  • a supporting film having a first refractive index having a light incident surface and a light emitting surface opposite to the light incident surface, and a plurality of grooves are formed on the light emitting surface;
  • An optical compensation film is formed with a plurality of convex structures matching the shape and size of the groove, and the width of each of the convex structures is smaller than or close to the wavelength of incident light, and the optical compensation film is attached to the support.
  • a polarizing film provided on the optical compensation film
  • a phase compensation film is provided on the polarizing film.
  • the display panel of the above display device includes a polarizing structure, which can deflect the light perpendicularly incident on the display panel to the side viewing angle and distribute the energy of the positive viewing angle to the side viewing angle, thereby improving the image quality of the side viewing angle.
  • the display panel is a liquid crystal display panel.
  • an included angle between a divergence direction of the incident light generated by the backlight module and a direction perpendicular to the display panel is less than 30 °.
  • Figure 1 is an exploded view of a polarized structure
  • FIG. 2 is a schematic diagram of diffraction of incident light by a polarizing structure
  • 3a is a three-dimensional structural view of an optical compensation film in an embodiment
  • 3b is a schematic perspective view of an optical compensation film in another embodiment
  • 4a is a partial cross-sectional view of a polarizing structure in an embodiment
  • FIG. 4b is a diagram showing the direction relationship between the penetration of the polarizing film and the optical axis of the optical compensation film in FIG. 4a;
  • 5a is a partial cross-sectional view of a polarizing structure in another embodiment
  • FIG. 5b is a diagram showing the direction relationship between the penetration of the polarizing film and the optical axis of the optical compensation film in FIG. 5a;
  • FIG. 6 is a schematic structural diagram of a display device according to an embodiment
  • FIG. 7 is a schematic structural diagram of a display panel according to an embodiment.
  • the polarizing structure includes a support film 100, an optical compensation film 200, a polarizing film 300, and a phase compensation film 400 stacked in this order.
  • the support film 100 has a light incident surface 100A and a light emitting surface. 100B, the light incident surface 100A is the side that receives incident light, and the light enters the support film from the light incident surface 100A and exits from the light emitting surface 100B.
  • the light emitting surface 100B of the supporting film 100 is formed with a plurality of grooves 101, and the light emitting surface 100B of the supporting film is covered with an optical compensation film 200.
  • the optical compensation film 200 is formed with a plurality of shapes corresponding to the grooves 101.
  • the protruding structures 201 are matched with the size, and each protruding structure 201 can be just embedded in the corresponding groove 101.
  • the width of each convex structure 201 is smaller than or close to the wavelength of the incident light.
  • the optical compensation film 200 is attached to the light exit surface 100B of the support film 100, and each convex structure 201 is completely contained in the corresponding groove 101, that is, the support film.
  • the 100 and the optical compensation film 200 are closely adhered without gaps.
  • the supporting film 100 has a first refractive index n1, and the optical compensation film 200 has a second refractive index n2.
  • the first refractive index n1 is larger than the second refractive index n2.
  • each raised structure 201 Since the width of each raised structure 201 is smaller than or close to the wavelength of incident light, when the incident light propagates to each raised structure 201, since the width of each raised structure 201 is less than or close to the wavelength, the raised structure 201 is equivalent to one Grating. Light can be diffracted at the raised structure 201.
  • the polarizing film 300 is superposed on the optical compensation film 200. After the light penetrates the optical compensation film 200 and enters the polarizing film 300, the polarizing film 300 polarizes the incident light. Only the light with the direction of the electric field parallel to the transmission axis of the polarizing film 300 can be used.
  • the polarizing film 300 penetrates, that is, the electric field direction of the light emitted from the polarizing film 300 is parallel to the transmission axis of the polarizing film 300.
  • the phase compensation film 400 is stacked on the polarizing film 300, and the phase compensation film 400 can perform phase compensation on light. In the display device, the phase delay phenomenon occurs after the light is processed. The phase delay will seriously affect the image quality.
  • a phase compensation film 400 is provided to perform phase compensation before the light exits the display panel, which can avoid the effect of phase delay on the image quality.
  • the phase compensation film 400 may be an A-film or a C-film or a combination of an A-film and a C-film.
  • this solution is provided by setting a supporting film 100 and an optical compensation film 200 with different refractive indexes and optically compensating
  • a convex structure 201 is formed on the side of the film 200 that is in contact with the support film 100.
  • a grating is formed by the convex structure 201.
  • the polarizing film 300 is a polyvinyl alcohol film.
  • the polyvinyl alcohol film has high transparency, high elongation performance, and has a polarizing effect on light.
  • the support film 100 may include a triacetate cellulose (TAC) support film, may also include a polyethylene terephthalate (PET) support film, and may further include polymethyl methacrylate (PMMA ) Supporting film. Since the polarizing film 300 is extremely hydrophilic, a protective film needs to be provided on the surface of the polarizing film 300 to support and protect the physical characteristics of the polarizing film 300.
  • TAC triacetate cellulose
  • PET polyethylene terephthalate
  • PMMA polymethyl methacrylate
  • the supporting film 100 and the optical compensation film 200 In addition to the functions, they also form a protective film on the light-incident side of the polarizing film 300, but the supporting film 100 and the optical compensation film 200 need to have appropriate thicknesses to protect the polarizing film 300.
  • each protruding structure 201 is X, and the value of X can be 300 nm ⁇ X ⁇ 1000 nm.
  • the protruding structure 201 is Diffraction occurs, that is, the light propagation path changes, and the light deviates from the original perpendicular incidence direction and diverges to the side. Therefore, more light enters the side and improves the image quality of the side viewing angle. It can be understood that the larger the difference between the first refractive index n1 and the second refractive index n2 is, the more obvious the diffraction phenomenon is, and the easier it is to distribute the frontal light type energy to a large viewing angle.
  • the value range of the first refractive index n1 is 1.0 ⁇ n1 ⁇ 2.5
  • the value range of the second refractive index n2 is 1.0 ⁇ n2 ⁇ 2.5.
  • the value range of m can be 0.01 ⁇ m ⁇ 1.5.
  • a plurality of convex structures 201 are formed on the optical compensation film 200.
  • Each of the convex structures 201 is an elongated convex structure.
  • Each of the elongated convex structures 201 can be arranged side by side.
  • the width of the lifting structure 201 is smaller than or close to the wavelength of the incident light.
  • the protruding structures 201 may also be arranged in a two-dimensional matrix array, and the width (X direction) and length (Y direction) of each protruding structure 201 are both smaller than or close to the wavelength of incident light. In the display device, most of the light generated by the backlight module is concentrated and incident perpendicularly into the polarizing structure.
  • each layer of the polarizing structure is flat and perpendicular to the normal incident light, the normal incident light does not pass through the polarizing structure. It will change its propagation direction, that is, when the light is incident perpendicularly, it will still be emitted vertically, causing the light to be concentrated at the front viewing angle, which makes the display quality of the front viewing direction better, but the side viewing angle is poor due to the weak light.
  • each convex structure 201 can diffract normal incident light, and the light deviates from the original normal incident direction and diverges to the side, so more light enters the side Side to improve the quality of the side view angle.
  • each of the convex structures 201 is a rectangular parallelepiped convex structure. In other embodiments, each of the convex structures 201 may be other forms of protrusions.
  • each of the convex structures 201 can make incident light Diffraction is sufficient.
  • each of the protruding structures 201 is arranged periodically, that is, the centers of adjacent protruding structures 201 are equally spaced.
  • the center-to-center distance between adjacent convex structures 201 is less than or equal to 10 ⁇ m, that is, less than or equal to the opening width of a single pixel, that is, each pixel opening corresponds to at least one convex structure 201 corresponding to the pixel light. Deflect.
  • the polarizing film 300 has an absorption axis and a transmission axis. Polarized light having an electric field direction parallel to the transmission axis can pass through the polarizing film 300, that is, the direction of the electric field of the linearly polarized light passing through the polarizing film 300 is parallel to the transmission axis.
  • the optical compensation film 200 should be made of a transparent or translucent material that can transmit light and have the function of optical compensation. The optical compensation may specifically be phase compensation.
  • the optical compensation film 200 may be a single optical axis liquid crystal film. The single optical axis liquid crystal film is filled with liquid crystal molecules and the optical axes of the liquid crystal molecules are parallel, so that the liquid crystal film has a single optical axis characteristic.
  • the axis direction is the optical axis direction of the internal liquid crystal molecules, and the optical axis of the single optical axis liquid crystal film is perpendicular to the transmission axis of the polarizing film 300.
  • liquid crystal is a birefringent material, usually, when light enters the liquid crystal, it is refracted into two rays of normal light and abnormal light.
  • the refractive index of normal light is the normal refractive index
  • the refractive index of abnormal light is the abnormal refractive index
  • the direction of abnormal refraction is the direction of abnormal refraction.
  • the direction of the optical electric field is parallel to the optical axis of the liquid crystal.
  • the normal direction of refraction is the direction in which the optical electric field is perpendicular to the optical axis of the liquid crystal.
  • the direction of abnormal refraction is perpendicular to the direction of normal refraction.
  • the optical axis of the optical compensation film 200 is perpendicular to the transmission axis, and the direction of the normal electric field of the optical compensation film 200 is parallel to the transmission axis. Therefore, only the normal light component of the optical compensation film 200 can pass through the polarizing film.
  • the normal refractive index n2 o of the optical compensation film 200 is selected as the second refractive index, which is smaller than the refractive index of the support film 100.
  • the optical axis of the optical compensation film 200 may be parallel to the transmission axis of the polarizing film 300.
  • the normal light in the optical compensation film 200 can pass through the polarizing film 300, and the abnormality of the optical compensation film 200 is selected.
  • the refractive index is the second refractive index of the optical compensation film 200, and the abnormal refractive index is smaller than the refractive index of the support film 100.
  • the optical compensation film 200 may be a single optical axis A-compensation film, and the single optical axis A-compensation film may be filled with nematic liquid crystal 202 and nematic liquid crystal.
  • 202 is a long rod-shaped liquid crystal.
  • the optical axis 203 of the nematic liquid crystal 202 is parallel to the light incident surface 100A and perpendicular to the transmission axis 301 of the polarizing film 300.
  • the anomalous refraction direction of the nematic liquid crystal 202 is the direction and direction of the optical electric field.
  • the direction in which the optical axis 203 of the nematic liquid crystal 202 is parallel that is, the direction of the optical field abnormally refracted by the nematic liquid crystal 202 is perpendicular to the transmission axis 301 of the polarizing film 300, and the corresponding abnormal refractive index is n1 e ;
  • the normal refraction direction is the direction in which the direction of the optical electric field is perpendicular to the optical axis 203 of the nematic liquid crystal 202, that is, the direction of the normal electric field of refraction of the nematic liquid crystal 202 is parallel to the transmission axis 301 of the polarizing film 300, and the corresponding normal refractive index Is n1 o .
  • the optical electric field is refracted into a component parallel to the optical axis (abnormal refraction) and a component perpendicular to the optical axis (normal refraction).
  • the optical axis 203 of the nematic liquid crystal is perpendicular to the transmission axis 301 of the polarizing film 300, if the light incident surface 100A is parallel to the X and Y directions in FIG. 4b, the optical axis of the nematic liquid crystal 203 may be in the Y direction in FIG. 4b, and the transmission axis 301 of the polarizing film 300 is in the X direction in FIG. 4b.
  • the optical axis 203 of the nematic liquid crystal may be in the X direction in FIG. 4b.
  • the transmission axis 301 of the film 300 is in the Y direction in FIG. 4b, and it is sufficient that the optical axis 203 is parallel to the light incident surface 100A and perpendicular to the transmission axis 301.
  • the incident light is refracted into normal light and abnormal light after entering the optical compensation film 200, wherein the electric field direction of the normal light is parallel to the X direction, that is, the electric field direction of the normal light is parallel to the transmission axis, and the electric field of the abnormal light
  • the direction is parallel to the Y direction, and only normal light can pass through the polarizing film 300, so the second refractive index is the normal refractive index of the optical compensation film 200.
  • the optical compensation film 200 is a single optical axis C-compensation film, and the single optical axis C-compensation film can be filled with the dish-shaped liquid crystal 204 and the optical axis of the dish-shaped liquid crystal 204 205 is perpendicular to the light incident surface 100A and perpendicular to the transmission axis 301 of the polarizing film 300.
  • the abnormal refraction direction of the dish-shaped liquid crystal 204 is a direction in which the direction of the optical electric field is parallel to the optical axis 205 of the dish-shaped liquid crystal 204, that is, the dish-shaped liquid crystal 204 is abnormal.
  • normal direction refractive smectic liquid crystal 2044 is the direction of the optical axis direction of the optical electric field perpendicular to the smectic liquid crystal 204, i.e., The direction of the normal electric field of refraction of the dish-shaped liquid crystal 204 is parallel to the transmission axis 301 of the polarizing film 300, and the corresponding normal refractive index is n1 o .
  • the single optical axis C-compensation film is a negative single Optical axis C-compensation film.
  • the single optical axis C-compensation film is a positive single optical axis C-compensation film.
  • the optical axis 205 of the dish-shaped liquid crystal 204 may be in the Z direction in FIG.
  • the axis 301 is in the Y direction in FIG. 5b.
  • the transmission axis 301 of the polarizing film 300 may be in any direction of the XY plane in FIG. 4b, so that the optical axis 205 is perpendicular to the transmission axis 301.
  • the direction of the optical electric field of the normal light of the optical compensation film 200 is parallel to the transmission axis, and the direction of the electric field of the abnormal light is perpendicular to the transmission axis. Only the normal light component in the optical compensation film 200 can penetrate the polarizing film 300. Therefore, the second refractive index is the normal refractive index of the optical compensation film 200, which is smaller than the refractive index of the support film 100.
  • the single optical axis C-compensation film is a negative single optical axis C-compensation film .
  • the polarizing structure further includes a pressure-sensitive adhesive layer stacked on the phase compensation film 400, and the polarizing structure can be pasted on the glass substrate through the pressure-sensitive adhesive layer.
  • the polarizing structure includes a support film 100, an optical compensation film 200, a polarizing film 300, and a phase compensation film 400 stacked in this order.
  • the supporting film 100 has a light incident surface 100A and a light emitting surface 100B, a plurality of grooves 101 are formed on the light emitting surface 100B of the support film 100, and a plurality of protrusions matching the shape and size of the groove 101 are formed on the optical compensation film 200
  • the raised structures 201 are arranged in a two-dimensional matrix array. The width (X direction) and length (Y direction) of each raised structure 201 are less than or close to the wavelength of incident light.
  • the center distance is less than or equal to the opening width of a single pixel.
  • the optical compensation film 200 is attached to the light exit surface 100B of the support film 100, and each convex structure 201 is completely received in the corresponding groove 101.
  • the support film 100 has a first refraction
  • the optical compensation film 200 has a second refractive index n2, and the first refractive index n1 is larger than the second refractive index n2.
  • each convex structure 201 When light penetrates the support film 100 and enters the optical compensation film 200, it is a process from the light dense to the light dense, so the light can be diffracted at each convex structure 201, so that the light is directed to each side in the two-dimensional plane. Angle of view deflection. Since the center-to-center distance between adjacent convex structures 201 is less than or equal to the opening width of a single pixel, each pixel opening can have at least one convex structure 201 corresponding to deflect light from the pixel.
  • the present application also discloses a display device.
  • the display device includes a backlight module 2 and a display panel 1 disposed on one side of the backlight module 2, wherein the display panel 1 includes the polarized structure described above.
  • the backlight module 2 is configured to provide a light source, and the light source generates incident light, which is incident on the display panel 1 in a concentrated manner, and a divergence direction of the incident light is at a small angle ⁇ with a direction perpendicular to the display panel 1, and the small angle ⁇ may be less than 30 °. Most of the light received by the display panel 1 is perpendicularly incident light.
  • the backlight module 20 includes a side-type light source 2A and a light guide plate 2B opposite to the side-type light source 2A.
  • the upper and lower surfaces of the light guide plate 2B are each provided with a long V-shaped groove, and the side of the V-shaped groove on the lower surface of the light guide plate 2B.
  • the wall is parallel to the side-type light source 2A, and the side wall of the V-shaped groove on the upper surface of the light guide plate 2B is perpendicular to the side-type light source 2A, that is, the length direction of the V-shaped groove on the upper surface of the light guide plate 2B
  • the length directions are perpendicular to each other.
  • the display panel may be a liquid crystal display panel.
  • the liquid crystal display panel includes an upper polarizing plate 10, a lower polarizing plate 30, and a liquid crystal layer sandwiched between the upper and lower polarizing plates. 20.
  • the liquid crystal layer 20 includes a substrate and liquid crystal molecules sandwiched between the substrates.
  • the upper polarizing plate includes the polarizing structure, or the lower polarizing plate includes the polarizing structure, or both the upper polarizing plate and the lower polarizing plate include the polarizing structure.
  • the display panel may also be an organic light-emitting diode (OLED) display panel, a quantum dot light emitting diode (QLED) display panel, or a curved display panel, and the above-mentioned polarizing structure is included.
  • OLED organic light-emitting diode
  • QLED quantum dot light emitting diode

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Abstract

L'invention concerne une structure de polarisation et un panneau d'affichage. La structure de polarisation comprend un film de support (100), un film de compensation optique (200), un film de polarisation (300) et un film de compensation de phase (400) disposés de manière empilée et en séquence, le film de support (100) comprenant une face d'incidence de lumière (100A) et une face d'émergence de lumière (100B) et la face d'émergence de lumière (100B) est dotée d'une pluralité de rainures (101) ; et le film de compensation optique (200) est doté d'une pluralité de structures en saillie (201) correspondant aux rainures (101) et chacune des structures en saillie (201) est logée dans la rainure correspondante (101), une largeur de chacune des structures en saillie (201) est inférieure à ou proche d'une longueur d'onde de la lumière incidente et l'indice de réfraction du film de support (100) est supérieur à celui du film de compensation optique (200).
PCT/CN2018/119254 2018-09-30 2018-12-05 Structure de polarisation et dispositif d'affichage Ceased WO2020062558A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811161890.9 2018-09-30
CN201811161890.9A CN109164531A (zh) 2018-09-30 2018-09-30 偏光结构及显示装置

Publications (1)

Publication Number Publication Date
WO2020062558A1 true WO2020062558A1 (fr) 2020-04-02

Family

ID=64877186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/119254 Ceased WO2020062558A1 (fr) 2018-09-30 2018-12-05 Structure de polarisation et dispositif d'affichage

Country Status (2)

Country Link
CN (1) CN109164531A (fr)
WO (1) WO2020062558A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109613745A (zh) * 2019-01-30 2019-04-12 惠科股份有限公司 光学膜层显示装置
CN109613640A (zh) * 2019-01-30 2019-04-12 惠科股份有限公司 光学膜层和显示装置
CN109633985A (zh) * 2019-01-30 2019-04-16 惠科股份有限公司 光学膜层和显示装置
CN116794878B (zh) * 2023-07-11 2025-08-22 宁波激智科技股份有限公司 一种可提升液晶显示设备视角的功能膜

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158778A (zh) * 2007-11-14 2008-04-09 友达光电（苏州）有限公司 广视角膜与应用该广视角膜的液晶显示装置
CN201314990Y (zh) * 2008-12-19 2009-09-23 上海纽发利商贸有限公司 广视角镜片及利用广视角镜片的偏光板和液晶显示装置
JP2013205752A (ja) * 2012-03-29 2013-10-07 Dainippon Printing Co Ltd 光拡散フィルム、偏光板、及び液晶表示装置
CN104808278A (zh) * 2015-05-18 2015-07-29 京东方科技集团股份有限公司 偏光片及其制作方法以及显示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000258772A (ja) * 1999-03-10 2000-09-22 Nippon Mitsubishi Oil Corp 液晶表示装置
KR100682230B1 (ko) * 2004-11-12 2007-02-12 주식회사 엘지화학 수직 배향 액정표시장치
US20070195251A1 (en) * 2006-02-22 2007-08-23 Toppoly Optoelectronics Corp. Systems for displaying images involving alignment liquid crystal displays
CN105629563B (zh) * 2011-01-21 2019-01-18 群创光电股份有限公司 背光模块与液晶显示装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158778A (zh) * 2007-11-14 2008-04-09 友达光电（苏州）有限公司 广视角膜与应用该广视角膜的液晶显示装置
CN201314990Y (zh) * 2008-12-19 2009-09-23 上海纽发利商贸有限公司 广视角镜片及利用广视角镜片的偏光板和液晶显示装置
JP2013205752A (ja) * 2012-03-29 2013-10-07 Dainippon Printing Co Ltd 光拡散フィルム、偏光板、及び液晶表示装置
CN104808278A (zh) * 2015-05-18 2015-07-29 京东方科技集团股份有限公司 偏光片及其制作方法以及显示装置

Also Published As

Publication number Publication date
CN109164531A (zh) 2019-01-08

Similar Documents

Publication Publication Date Title
US9261731B2 (en) Liquid crystal display apparatus
CN104246590B (zh) 液晶显示设备
WO2020062584A1 (fr) Structure de polarisation et dispositif d'affichage
US11209694B2 (en) Polarizing structure and display device
US10338432B2 (en) Display device
WO2020062563A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062593A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062558A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062591A1 (fr) Plaque de polarisation et dispositif d'affichage
WO2020062565A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062559A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062587A1 (fr) Plaque de polarisation et dispositif d'affichage
WO2020062577A1 (fr) Polariseur et dispositif d'affichage
WO2020062600A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062603A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062578A1 (fr) Structure de polariseur et dispositif d'affichage
WO2020062568A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062560A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020062561A1 (fr) Structure polarisante et dispositif d'affichage
WO2020062592A1 (fr) Polariseur et dispositif d'affichage
WO2020062588A1 (fr) Plaque de polarisation et dispositif d'affichage
WO2020062569A1 (fr) Structure de polarisation et dispositif d'affichage
WO2020155207A1 (fr) Film optique et dispositif d'affichage
WO2020062562A1 (fr) Structure de polarisation et dispositif d'affichage
JP2003270445A (ja) 導光板、液晶表示装置およびその製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18935665

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 19/07/2021)

122 Ep: pct application non-entry in european phase

Ref document number: 18935665

Country of ref document: EP

Kind code of ref document: A1