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WO2020062565A1 - Structure de polarisation et dispositif d'affichage - Google Patents

Structure de polarisation et dispositif d'affichage Download PDF

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Publication number
WO2020062565A1
WO2020062565A1 PCT/CN2018/119282 CN2018119282W WO2020062565A1 WO 2020062565 A1 WO2020062565 A1 WO 2020062565A1 CN 2018119282 W CN2018119282 W CN 2018119282W WO 2020062565 A1 WO2020062565 A1 WO 2020062565A1
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WO
WIPO (PCT)
Prior art keywords
film
light
polarizing
refractive index
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/CN2018/119282
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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 WO2020062565A1 publication Critical patent/WO2020062565A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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:
  • An optical compensation film having a first refractive index has a light incident surface and a light exit surface opposite to the light incident surface, and a plurality of grooves are formed on the light exit surface;
  • the supporting film has a second refractive index, the first refractive index is greater than the second refractive index, and a plurality of convex structures matching the shape and size of the groove are formed on the supporting film.
  • the width of the convex structure is smaller than or close to the wavelength of the incident light, the support film is adhered to the light exit surface of the optical compensation film, and each of the convex structures is received in the corresponding groove;
  • a polarizing film provided on the supporting film
  • a phase compensation film is provided on the polarizing film.
  • the display panel includes a polarizing structure.
  • the polarizing structure includes a polarizing film and a supporting film for supporting and protecting the polarizing film. If the surface of each layer of the polarizing structure is flat and perpendicular to the incident The light is perpendicular to each other, and most of the incident light is emitted perpendicularly when it is perpendicularly incident on the polarizing structure, and most of the light energy is concentrated in a positive viewing angle, which results in a display panel with a good viewing angle and a poor viewing angle.
  • a layer of optical compensation film is provided in the polarizing structure, the supporting film is stacked on the optical compensation film, and a groove is formed on the optical compensation film, and a plurality of protrusions matching the groove are formed on the supporting film.
  • Structure, the optical compensation film and the supporting film are closely attached without gaps, and each convex structure is accommodated in a corresponding groove.
  • the optical compensation film has a first refractive index
  • the supporting film has a second refractive index
  • the first refractive index is greater than
  • the second refractive index that is, the process of penetrating the optical compensation film and incident on the supporting film when the light is incident perpendicularly to the display panel, is a process from light dense to light dense.
  • a plurality of convex structures are formed on the side where the support film is in contact with the optical compensation film, and the width of each convex structure is smaller than or close to the wavelength of the incident light.
  • the structure is equivalent to a grating, and the light incident on each convex structure will be diffracted, thereby changing the propagation path of the light, diverging 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.
  • each of the raised structures is arranged periodically.
  • the center-to-center distance between the adjacent protruding structures is less than or equal to 10 ⁇ m.
  • the polarizing film has a transmission axis
  • the optical compensation film is a single optical axis A-compensation film
  • the single optical axis A-compensation film is filled with nematic liquid crystal molecules
  • the optical axis of the nematic liquid crystal molecules is parallel to the transmission axis
  • the first refractive index is an abnormal refractive index of the A-compensation film.
  • the support film includes a triacetyl cellulose 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.
  • it further includes:
  • a pressure-sensitive adhesive layer is disposed on the phase compensation 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.
  • another polarizing structure is provided.
  • a polarizing structure includes:
  • An optical compensation film having a first refractive index has a light incident surface and a light exit surface opposite to the light incident surface, and a plurality of grooves are formed on the light exit surface;
  • the supporting film has a second refractive index, the first refractive index is greater than the second refractive index, and a plurality of convex structures matching the shape and size of the groove are formed on the supporting film.
  • the convex structures are arranged in a two-dimensional matrix array. The length and width of each of the convex structures are smaller than or close to the wavelength of incident light.
  • the support film is adhered to the light exit surface of the optical compensation film.
  • the raised structures are accommodated in the corresponding grooves, and the center distance between adjacent raised structures is less than or equal to 10 ⁇ m;
  • a polarizing film provided on the supporting film
  • a phase compensation film is provided on the polarizing film.
  • the above-mentioned polarizing structure can deflect most of the light incident perpendicularly to the polarizing structure to a side viewing angle in a two-dimensional plane, and distributes positive viewing angle energy to the side viewing angle, thereby improving the image quality of the side viewing angle.
  • a display device is provided according to various embodiments of the present application.
  • a display device includes:
  • a backlight module configured to provide a 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:
  • An optical compensation film having a first refractive index has a light incident surface and a light exit surface opposite to the light incident surface, and a plurality of grooves are formed on the light exit surface;
  • the supporting film has a second refractive index, the first refractive index is greater than the second refractive index, and a plurality of convex structures matching the shape and size of the groove are formed on the supporting film.
  • the width of the convex structure is smaller than or close to the wavelength of the incident light, the support film is adhered to the light exit surface of the optical compensation film, and each of the convex structures is received in the corresponding groove;
  • a polarizing film provided on the supporting film
  • a phase compensation film is provided on the polarizing film.
  • 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 °.
  • the backlight module includes a light guide plate, and the upper surface and the lower surface of the light guide plate are each provided with a long V-shaped groove.
  • 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;
  • FIG. 5 is a schematic structural diagram of a polarizing structure in an embodiment.
  • FIG. 6 is a schematic structural diagram of a display device
  • FIG. 7 is a schematic structural diagram of a display panel according to an embodiment.
  • the polarizing structure includes an optical compensation film 100, a support film 200, a polarizing film 300, and a phase compensation film 400 stacked in this order.
  • the optical compensation film 100 should be transparent and transparent. Or it is made of translucent material and has the function of optical compensation.
  • the optical compensation may specifically be phase compensation.
  • the optical compensation film 100 has a light incident surface 100A and a light emitting surface 100B.
  • the light incident surface 100A is a surface that receives incident light. Light enters the optical compensation film 100 from the light incident surface 100A and exits from the light emitting surface 100B.
  • a plurality of grooves 101 are formed on the light-emitting surface 100B of the optical compensation film 100.
  • the support film 200 is disposed on the light-emitting surface 100B of the optical compensation film 100.
  • a plurality of shapes corresponding to the grooves 101 are formed on the support film 200.
  • 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 supporting film 200 is attached to the light exit surface 100B of the optical compensation film 100, and each convex structure 201 is completely contained in the corresponding groove 101, that is, the optical compensation film.
  • the 100 and the support film 200 are closely adhered without gaps.
  • the optical compensation film 100 has a first refractive index n1, and the supporting film 200 has a second refractive index n2.
  • the first refractive index n1 is greater than the second refractive index n2.
  • the polarizing film 300 polarizes the incident light. Only the light whose direction of the electric field is parallel to the transmission axis of the polarizing film 300 can pass through.
  • the polarizing film 300 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, 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-compensation film or a C-compensation film or a combination of an A-compensation film and a C-compensation film.
  • this solution is provided by setting the optical compensation film 100 and the supporting film 200 with different refractive indexes and A convex structure 201 is formed on the side that is in contact with the optical compensation film 100, and each convex structure 201 forms a grating.
  • incident light is perpendicularly incident from the optical compensation film 100 to the support film 200, diffraction occurs at each convex structure 201 and changes.
  • the propagation path of the vertically incident light deflects the light, so that the light energy of the positive viewing angle is distributed to the large viewing angle, and the image quality of the side viewing angle is improved.
  • the polarizing film 300 may be a polyvinyl alcohol film.
  • the polyvinyl alcohol film has high transparency, high elongation performance, and has a polarizing effect on light.
  • the support film 200 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 support film 200 and the optical compensation film 100 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 200 and the optical compensation film 100 need to have appropriate thicknesses to protect the polarizing film 300.
  • each raised structure 201 is X, and the range of X can be 300 nm ⁇ X ⁇ 1000 nm.
  • the raised structures 201 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.
  • 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.
  • each protruding structure 201 is an elongated protruding structure.
  • Each of the elongated protruding structures 201 can be arranged side by side, and each of the elongated protrusions.
  • the width of the structure 201 is smaller than or close to the wavelength of the incident light.
  • each convex structure 201 can also be arranged in a two-dimensional matrix array, and the width (X direction) and length (Y direction) of each convex structure 201 are both smaller than or close to the wavelength of incident 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 convex structure 201 is a rectangular parallelepiped convex structure. In other embodiments, each convex structure 201 may also be a convex structure of other forms.
  • each convex structure 201 can make the incident Diffraction of light is sufficient.
  • the protruding structures are 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, smaller than the opening width of a general pixel, that is, each pixel opening corresponds to at least one convex structure 201 that deflects the pixel light.
  • 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 100 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 optical compensation film 100 The optical axis direction of is the optical axis direction of the internal liquid crystal molecules.
  • 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 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. Because the polarizing film 300 is provided above the optical compensation film 100, only the light whose electric field direction is parallel to the polarization axis of the polarizing film 300 can pass through the polarizing film 300.
  • the optical compensation film 100 may be a single optical axis A-compensation film, and the single optical axis A-compensation film may be filled with nematic liquid crystal 102 and nematic liquid crystal.
  • 102 is a long rod-shaped liquid crystal.
  • the optical axis 103 of the nematic liquid crystal 102 is parallel to the transmission axis 301 of the polarizing film 300.
  • the abnormal refraction direction of the nematic liquid crystal 102 is the direction of the optical electric field and the optical axis of the nematic liquid crystal 102.
  • the normal refraction direction of the nematic liquid crystal 102 is the optical field direction a direction perpendicular to the optical axis of the nematic liquid crystal 102, 103, namely the nematic liquid crystal in a normal refractive optical field transmission axis direction 300 of the polarizing film 102 perpendicular to 301, corresponding to the normal refractive index 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 103 of the nematic liquid crystal 102 is parallel to the transmission axis 301 of the polarizing film 300, for example, the optical axis 103 of the nematic liquid crystal 102 and the transmission axis 301 of the polarizing film 300 are both in FIG. 4b. In the X direction.
  • the optical axis 103 of the nematic liquid crystal 102 and the transmission axis 301 of the polarizing film 300 may be in the Y direction in FIG. 4b, so that the optical axis 103 and the transmission axis 301 are parallel.
  • incident light is refracted into normal light and abnormal light after entering the optical compensation film 100, wherein the electric field direction of the abnormal light is parallel to the X direction, that is, the electric field direction of the abnormal light is parallel to the transmission axis, and the electric field of the normal light
  • the direction is perpendicular to the transmission axis, and only abnormal light can pass through the polarizing film 300, so the first refractive index is the abnormal refractive index n1 e of the optical compensation film 100.
  • the optical compensation film 100 may also be another type of liquid crystal film, and it is sufficient that the first refractive index of the optical compensation film 100 is greater than the second refractive index of the supporting film 200, wherein the refractive index corresponding to the first refractive index is Light can penetrate the polarizing film 300, that is, the direction of the electric field of the refracted light is parallel to the direction of the transmission axis of the polarizing film 300.
  • the polarizing structure further includes a pressure-sensitive adhesive layer 500 stacked on the phase compensation film 400. The polarizing structure can be pasted on a glass substrate through the pressure-sensitive adhesive layer 500.
  • the polarizing structure includes an optical compensation film 100, a support film 200, a polarizing film 300, and a phase compensation film 400 stacked in this order.
  • the light emitting surface 100B of the optical compensation film 100 is formed with a plurality of grooves 101
  • the supporting film 200 is provided on the light emitting surface 100B of the optical compensation film 100.
  • the supporting film 200 is formed with a plurality of grooves 101.
  • the protruding structures 201 with matching shapes and sizes can be embedded in the corresponding grooves 101.
  • the protruding structures 201 are arranged in a two-dimensional matrix array.
  • each protruding structure 201 are less than or close to the wavelength of incident light, and the center distance Y between adjacent protruding structures 201 is less than or equal to 10 ⁇ m.
  • the supporting film 200 is attached to the light-emitting surface 100B of the supporting film 100, and each of the protruding structures 201 is completely contained in the corresponding groove 101, that is, the optical compensation film 100 and the supporting film 200 are closely adhered without a gap.
  • the optical compensation film 100 has a first refractive index n1, the support 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 optical compensation film 100 and enters the support film 200, since the length and width of each convex structure 201 are less than or close to the wavelength, the convex structure 201 is equivalent to a grating, and light may be diffracted at the convex structure 201 , Change the propagation path of the vertically incident light, deflect the light, so that the light energy of the positive viewing angle is distributed to the large viewing angle, and the image quality of the side viewing angle is improved.
  • Each convex structure 201 is arranged in a two-dimensional matrix. Since the length and width of each convex structure 201 are less than or close to the wavelength of incident light, diffraction occurs in a two-dimensional plane.
  • the center distance Y between adjacent convex structures 201 is less than or equal to 10 ⁇ m, that is, smaller than the opening width of a general pixel, that is, each pixel opening corresponds to at least one convex structure 201 that deflects the pixel light.
  • 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.
  • the display panel 1 includes the above-mentioned polarizing structure.
  • the backlight module 2 is configured to provide a light source.
  • the light source may be a collimated light source.
  • the light source generates incident light, which is incident on the display panel 1 in a concentrated manner.
  • the divergent direction of the incident light is at a small angle with the direction perpendicular to the display panel 1.
  • the angle ⁇ may be less than 30 °. Most of the light received by the display panel 1 is normal incident light.
  • the display panel 1 includes a polarized structure, a support film 200 and an optical compensation film 100 are provided in the polarized structure.
  • the optical compensation film 100 has a first refractive index;
  • the supporting film 200 has a second refractive index, the first refractive index is greater than the second refractive index, and a plurality of convex structures 201 are formed on a side of the supporting film 200 that is in contact with the optical compensation film 100.
  • the raised structure 201 may form a diffraction grating.
  • the display panel 1 When the display panel 1 includes the above-mentioned polarizing structure, light enters the display panel 1 perpendicularly and penetrates the polarizing structure, and in the polarizing structure, it will enter from light dense to light dense, and because the width of each convex structure 201 is smaller than or close to At the wavelength, the convex structure 201 is equivalent to a grating. Therefore, a diffraction phenomenon occurs at each convex structure 201, which deflects normal incident light to a side viewing angle, distributes positive viewing angle energy to the side viewing angle, and improves the image quality of the side viewing angle.
  • the specific structure of the polarizing structure has been described in detail above, and is not repeated here.
  • 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 are provided with long V-shaped grooves, and the side walls of the V-shaped groove 61 on the lower surface of the light guide plate.
  • Parallel to the side-type light source 2A, the length direction of the V-shaped groove 62 on the upper surface of the light guide plate and the length direction of the V-shaped groove 61 on the lower surface are perpendicular to each other.
  • the display panel is a liquid crystal display panel.
  • the display panel includes an upper polarizing plate 10, a lower polarizing plate 30, and a liquid crystal layer sandwiched between the upper polarizing plate 10 and the lower polarizing plate 30.
  • the liquid crystal layer 20 includes a glass substrate and liquid crystal molecules interposed between the glass substrate. The incident light becomes linearly polarized light after passing through the lower polarizing plate.
  • the liquid crystal layer 20 can reverse the polarization direction of the linearly polarized light and allow the linearly polarized light to pass through the upper polarizing plate to display a picture on the display panel.
  • the lower polarizing plate 30 includes Polarizing structure introduced above.
  • 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 polarized light panel is included. Structure of other display panels.
  • OLED organic light-emitting diode
  • QLED quantum dot light emitting diode

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

Abstract

La présente invention concerne une structure de polarisation et un dispositif d'affichage. La structure de polarisation comporte un film de compensation optique (100) pourvu d'une face d'incidence de lumière (100A) et d'une face d'émergence de lumière (100B), ainsi qu'un film de support (200), un film de polarisation (300) et un film de compensation de phase (400) qui sont empilés successivement sur la face d'émergence de lumière (100B) du film de compensation optique (100), de multiples rainures (101) étant formées dans la face d'émergence de lumière (100B) du film de compensation optique (100), de multiples structures en saillie (201) correspondant aux rainures (101) étant formées sur le film de support (200), la largeur de chaque structure en saillie (201) étant plus petite que la longueur d'onde de la lumière incidente ou avoisinant cette dernière, la structure en saillie (201) étant reçue dans la rainure correspondante (101), et l'indice de réfraction du film de compensation optique (100) étant supérieur à l'indice de réfraction du film de support (200).
PCT/CN2018/119282 2018-09-30 2018-12-05 Structure de polarisation et dispositif d'affichage Ceased WO2020062565A1 (fr)

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CN201811162066.5 2018-09-30
CN201811162066.5A CN109143675A (zh) 2018-09-30 2018-09-30 偏光结构及显示装置

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CN109683380A (zh) * 2019-01-30 2019-04-26 惠科股份有限公司 光学膜层和显示装置
CN109613760A (zh) * 2019-01-30 2019-04-12 惠科股份有限公司 光学膜层和显示装置
CN109613746A (zh) * 2019-01-30 2019-04-12 惠科股份有限公司 光学膜层和显示装置

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