WO2022000690A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2022000690A1
WO2022000690A1 PCT/CN2020/106545 CN2020106545W WO2022000690A1 WO 2022000690 A1 WO2022000690 A1 WO 2022000690A1 CN 2020106545 W CN2020106545 W CN 2020106545W WO 2022000690 A1 WO2022000690 A1 WO 2022000690A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
diffuse reflection
polarizer
display device
polarizing
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/CN2020/106545
Other languages
English (en)
French (fr)
Inventor
海博
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.)
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Semiconductor Display 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 Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US17/047,732 priority Critical patent/US20220004041A1/en
Publication of WO2022000690A1 publication Critical patent/WO2022000690A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G02F1/133553—Reflecting 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
    • G02F1/1313—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 specially adapted for a particular application
    • 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 technology, and in particular, to a display device.
  • a projection system is generally required to display PPT and other content.
  • a conventional projection system includes a projector, a projection screen (white wall) and a computer. Due to the advantages of low price, no need for a projector during projection display, high display brightness, and finer display effects, more and more commercial display systems gradually replace conventional projection systems with liquid crystal display systems.
  • the present application provides a display device to solve the technical problem that the application of the liquid crystal display in commercial projection display is limited due to the poor diffuse reflection effect of the liquid crystal display.
  • the present application provides a display device, which includes:
  • the first polarizer is disposed on the light-emitting side of the display panel, and the first polarizer includes a first polarizing layer;
  • the display panel further includes a second polarizer disposed on a side of the first polarizer away from the display panel;
  • the diffuse reflection structure is arranged on the first polarizing layer, the diffuse reflection structure includes a diffuse reflection layer, and the diffuse reflection layer includes a first surface and a second surface arranged oppositely, the first surface The surface is a rough surface having a concavo-convex shape.
  • the first surface is a side of the diffuse reflection layer away from the first polarizing layer.
  • the diffuse reflection structure includes a diffuse reflection layer and a plurality of reflection particles, and the reflection particles are arranged inside the diffuse reflection layer.
  • the first polarizer includes a first adhesive layer and a first compensation layer arranged in sequence, the first adhesive layer is arranged on the light-emitting side of the display panel, and the first A polarizing layer is disposed on the first compensation layer.
  • the first polarizer further includes a first protective layer, and the first polarizer is disposed between the first compensation layer and the first protective layer;
  • the diffuse reflection layer is integrated on the first protective layer.
  • the present application also provides a display device, comprising:
  • the first polarizer is disposed on the light-emitting side of the display panel, the first polarizer includes a first polarizing layer;
  • a diffuse reflection structure is provided on the first polarizing layer.
  • the diffuse reflection structure includes a diffuse reflection layer, the diffuse reflection layer includes a first surface and a second surface disposed opposite to each other, and the first surface is a rough surface having a concave-convex shape.
  • the first surface is a side of the diffuse reflection layer away from the first polarizing layer.
  • the diffuse reflection structure includes a diffuse reflection layer and a plurality of reflection particles, and the reflection particles are arranged inside the diffuse reflection layer.
  • the first polarizer includes a first adhesive layer and a first compensation layer arranged in sequence, the first adhesive layer is arranged on the light-emitting side of the display panel, and the first A polarizing layer is disposed on the first compensation layer.
  • the first polarizer further includes a first protective layer, and the first polarizer is disposed between the first compensation layer and the first protective layer;
  • the diffuse reflection layer is integrated on the first protective layer.
  • the diffuse reflection structure is a diffuse reflection film, and the diffuse reflection film is integrated on the side of the first polarizing layer away from the first compensation layer.
  • the first polarizer further includes a first protective layer, and the first polarizer is disposed between the first compensation layer and the first protective layer;
  • the diffuse reflection structure is disposed on the side of the first protective layer away from the first polarizing layer, the display device further includes a second adhesive layer, and the diffuse reflection structure passes through the second adhesive layer Adhesive with the first protective layer.
  • the diffuse reflection structure is a diffuse reflection film or a diffuse reflection cover plate.
  • the display panel further includes a second polarizer, and the second polarizer is disposed on a side of the first polarizer away from the display panel;
  • the second polarizer includes a second protective layer, a second polarizing layer, a second compensation layer and a third adhesive layer arranged in sequence, and the third adhesive layer is located at the second compensation layer and close to the display panel. side.
  • the display device provided by the present application provides a diffuse reflection structure on the first polarizing layer, so that the incident light can be reflected in different directions, thereby enhancing the diffuse reflection effect of the incident light.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.
  • FIG. 1 is a schematic structural diagram of a display device provided by a first embodiment of the present application
  • FIG. 2 is a first structural schematic diagram of a diffuse reflection structure in a display device provided by the first embodiment of the present application;
  • FIG. 3 is a second structural schematic diagram of the diffuse reflection structure in the display device provided by the first embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a display device provided by a second embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a display device provided by a third embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a display device provided by a fourth embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the display panel in the present application may be a liquid crystal display panel or an organic light emitting diode display panel.
  • the following embodiments of the present application only take the display panel as an organic light emitting diode display panel as an example for description, but do not limited to this.
  • film layer structures of the first polarizer and the second polarizer in the present application are only schematic and are used to facilitate the description of the following embodiments of the present application, but should not be construed as limitations on the present application.
  • the display device 100 provided in the first embodiment of the present application includes a second polarizer 11 , a display panel 10 , a first polarizer 12 , and a diffuse reflection structure 13 arranged in sequence.
  • the first polarizer 12 is disposed on the light-emitting side of the display panel 10 .
  • the first polarizer 12 includes a first polarizing layer 123 .
  • the diffuse reflection structure 13 is disposed on the first polarizing layer 123 .
  • the second polarizer 11 is disposed on the side of the first polarizer 12 away from the display panel 10 .
  • the diffuse reflection structure 13 on the first polarizing layer 123 , the incident light can be reflected in different directions, thereby enhancing the diffuse reflection effect of the incident light.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.
  • the incident surface of the polarizer in the conventional liquid crystal display is a smooth surface
  • the incident light will be specularly reflected on the incident surface of the polarizer. and shoot in parallel in the same direction. Therefore, when a laser pointer is used to illuminate the LCD screen, only the person in the reflection direction can see the light spot formed by the laser pointer on the display screen, and the more deviated from the reflection direction, the less visible the laser pointer's light spot.
  • the reporter in the conference room is in the incident direction of the laser pointer, the reporter himself cannot see the light spot of the laser pointer, which directly affects the progress of the reporting work.
  • a diffuse reflection structure 13 is arranged on the first polarizing layer 123 in the first polarizer 12 .
  • the incident light beam is on the incident surface.
  • Diffuse reflection occurs and shoots out in different directions, and when the reporter uses a laser pointer to illuminate the LCD screen, the reporter himself and other viewers can see the light spot formed by the laser pointer on the display screen, which makes the mirror reflection of the LCD screen. The rate decreases and the diffuse reflectance increases. Further, taking the projection of a red laser pointer as an example, the inventor has calculated through a large number of experimental studies that the setting of the diffuse reflection structure 13 can make the diffuse reflectance of the liquid crystal display reach more than 6%.
  • the transmittance of the diffuse reflection structure 13 is between 50% and 100%.
  • the transmittance of the diffuse reflection structure 13 can reach more than 90%. Therefore, under the premise of enhancing the diffuse reflection effect of incident light, the diffuse reflection structure 13 has a high transmittance, thereby ensuring the display brightness of the liquid crystal display, thereby ensuring a good display effect of the liquid crystal display.
  • the first polarizer 12 further includes a first adhesive layer 121 , a first compensation layer 122 and a first protective layer 124 which are arranged in sequence.
  • the first adhesive layer 121 is disposed on the light-emitting side of the display panel 10 .
  • the first polarizing layer 123 is disposed between the first compensation layer 122 and the first protective layer 124 .
  • the diffuse reflection structure 13 is disposed on a side of the first protective layer 124 away from the first polarizing layer 123 .
  • the display device 100 further includes a second adhesive layer 14 .
  • the diffuse reflection structure 13 is bonded to the first protective layer 124 through the second bonding layer 14 .
  • the diffuse reflection structure 13 is arranged on the outermost first protective layer 124 of the first polarizer 12, and the second adhesive layer 14 is attached to the first protective layer 124, and then the first protective layer 124 is attached to the first protective layer 124.
  • the diffuse reflection effect of the incident light is enhanced.
  • the second adhesive layer 14 may be optical adhesive or other adhesive material with adhesive function, which will not be repeated here.
  • the material of the first adhesive layer 121 may be polypropylene pressure-sensitive adhesive
  • the material of the first polarizing layer 123 may be polyvinyl alcohol
  • the material of the first protective layer 124 may be polyvinyl alcohol.
  • the material can be one or a combination of cellulose triacetate, polyethylene terephthalate or polymethyl methacrylate.
  • the first adhesive layer 121, the first compensation layer 122, The materials of the first polarizing layer 123 and the first protective layer 124 are not specifically limited.
  • the diffuse reflection structure 13 includes a diffuse reflection layer 131 .
  • the diffuse reflection layer 131 includes a first surface 131a and a second surface 131b disposed opposite to each other.
  • the first surface 131a is a rough surface having a concavo-convex shape.
  • the first surface 131 a is the side of the diffuse reflection layer 131 away from the first polarizing layer 123 .
  • the first surface 131a of the diffuse reflection layer 131 is the incident surface of the incident light
  • the first surface 131a is set as a rough surface having a concave-convex shape.
  • the above-mentioned rough surface is formed on the diffuse reflection layer 131 by an etching method or a photoresist melting method, and the present application does not specifically limit the specific method for forming the rough surface.
  • the roughness of the first surface 131a can be set according to actual process conditions, which is not limited in the present application.
  • the first surface 131 a is the side of the diffuse reflection layer 131 close to the first polarizing layer 123 . Since the first surface 131 a is a rough surface with concave-convex shapes, the existence of the concave-convex shapes can increase the contact area between the first surface 131 a and the second adhesive layer 14 , thereby increasing the diffuse reflection structure 13 and the first polarizer 12 . The bonding effect between the two can effectively prevent the diffuse reflection structure 13 from falling off, thereby improving the performance of the product and helping to increase the service life of the liquid crystal display.
  • the diffuse reflection structure 13 in the first embodiment of the present application may further include a diffuse reflection layer 131 and a plurality of reflection particles 132 .
  • the diffuse reflection layer 131 includes a first surface 131a and a second surface 131b disposed opposite to each other.
  • the reflective particles 132 are provided inside the diffuse reflection layer 131 .
  • the refractive index of the material inside the diffuse reflection layer 131 is different from the refractive index of the outside air, when a parallel incident light beam strikes the first surface 131a, the incident light beam is reflected on the first surface 131a at the same time. , will also be refracted on the first surface 131 a and enter the interior of the diffuse reflection layer 131 .
  • a plurality of reflective particles 132 are arranged inside the diffuse reflection layer 131, so that the refracted light entering the inside of the diffuse reflection layer 131 is first reflected on the surface of the reflective particles 132, and then the reflected light occurs on the first surface 131a. refracted, and then radiated into the air from the inside of the diffuse reflection layer 131 . Therefore, the refracted light rays emitted from the inside of the diffuse reflection layer 131 through the first surface 131a can be directed in different directions, thereby greatly enhancing the diffuse reflection effect of the incident light rays.
  • the diffuse reflection layer 131 since the diffuse reflection layer 131 is prepared from the base material, in the preparation process of the diffuse reflection layer 131 , the diffuse reflection layer 131 may be formed by doping the base material with a plurality of reflective particles 132 .
  • the reflective particles 132 are transparent particles with high refractive index.
  • the structure of the reflective particles 132 in the first embodiment of the present application is only for illustration and is used to facilitate the description of the various embodiments of the present application. and materials are not specifically limited.
  • the diffuse reflection structure 13 may further include a diffuse reflection layer 131 and a plurality of reflective particles 132 .
  • the diffuse reflection layer 131 includes a first surface 131a and a second surface 131b disposed opposite to each other.
  • the first surface 131a is a rough surface having a concavo-convex shape.
  • the reflective particles 132 are provided inside the diffuse reflection layer 131 . This setting can further improve the diffuse reflectance of the liquid crystal display, thereby further enhancing the diffuse reflection effect of incident light.
  • the diffuse reflection structure 13 is a diffuse reflection cover plate.
  • the diffuse reflection cover plate can be prepared from a rigid substrate such as glass, and the application does not specifically limit the substrate of the cover plate.
  • the cover plate Since the cover plate has good rigidity, it can further protect the liquid crystal display, and can effectively prevent the surface of the liquid crystal display from being scratched, thereby helping to increase the service life of the liquid crystal display.
  • the display panel 10 includes an array substrate 101 and a color filter substrate 102 , and a liquid crystal layer 103 disposed between the array substrate 101 and the color filter substrate 102 .
  • the first polarizer 12 is disposed on the color filter substrate 102 .
  • the second polarizer 11 includes a second protective layer 111 , a second polarizing layer 112 , a second compensation layer 113 and a third adhesive layer 114 which are arranged in sequence.
  • the third adhesive layer 114 is located on the side of the second compensation layer 113 close to the display panel 10 .
  • the display device 100 provided by the first embodiment of the present application, by disposing a diffuse reflection cover plate on the first polarizing layer 123, the incident light is diffused on the incident surface of the diffuse reflection cover plate without changing the original process. reflection, which in turn enhances the diffuse reflection effect of incident light.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.
  • Applications in commercial projection displays the use of the cover plate in the first embodiment of the present application further protects the liquid crystal display, which can effectively prevent the surface of the liquid crystal display from being scratched, thereby improving product performance and increasing the service life of the liquid crystal display.
  • FIG. 4 is a schematic structural diagram of a display device according to a second embodiment of the present application.
  • the difference between the second embodiment of the present application and the first embodiment is that the diffuse reflection structure 13 is a diffuse reflection film.
  • the use of the diffuse reflection film in the second embodiment reduces the overall thickness of the liquid crystal display, thereby helping to improve the market competitiveness of the product.
  • the base material of the diffuse reflection layer 131 can be one or a combination of cellulose triacetate, polyethylene terephthalate or polymethyl methacrylate, etc., The present application does not specifically limit the material of the substrate.
  • the diffuse reflection film in the display device 100 provided by the second embodiment of the present application, by disposing the diffuse reflection film on the first polarizing layer 123, the incident light is diffusely reflected on the incident surface of the diffuse reflection film without changing the original process. This in turn enhances the diffuse reflection effect of incident light.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.
  • Applications in commercial projection displays the use of the diffuse reflection film in the second embodiment of the present application reduces the overall thickness of the liquid crystal display, thereby helping to improve the market competitiveness of the product.
  • FIG. 5 is a schematic structural diagram of a display device according to a third embodiment of the present application.
  • the first polarizer 12 includes a first adhesive layer 121 and a first compensation layer 122 which are arranged in sequence.
  • the first adhesive layer 121 is disposed on the light-emitting side of the display panel 10 .
  • the first polarizing layer 123 is disposed on the first compensation layer 122 .
  • the diffuse reflection structure 13 is a diffuse reflection film. The diffuse reflection film is integrated on the side of the first polarizing layer 123 away from the first compensation layer 122 .
  • the first polarizer 12 and the second polarizer 11 are easily heated or damped in the high temperature and high humidity environment, thereby causing shrinkage or expansion.
  • a stress difference will be generated between the first polarizer 12 and the second polarizer 11 , which will cause the difference between the thickness of the first polarizer 12 and the second polarizer 11 .
  • the display panel 10 bonded by 11 is deformed, which easily causes the liquid crystal layer 103 in the display panel 10 to be bent and deformed, thereby affecting the display effect of the display panel 10 .
  • the above arrangement reduces the thickness difference between the first polarizer 12 and the second polarizer 11 by integrating the diffuse reflective film on the first polarizer 123 , and reduces the thickness of the first polarizer 12 and the second polarizer 12 . 11 , thereby improving the display effect of the display panel 10 .
  • the base material of the diffuse reflection layer 131 can be one or a combination of cellulose triacetate, polyethylene terephthalate or polymethyl methacrylate , and materials such as cellulose triacetate, polyethylene terephthalate or polymethyl methacrylate have the advantages of high strength and excellent support performance, so the diffuse reflection film can play a good role in supporting the liquid crystal display and protection.
  • the display device 100 provided by the third embodiment of the present application integrates a diffuse reflection film on the side of the first polarizing layer 123 away from the first compensation layer 122, so that the incident light is diffusely reflected on the incident surface of the diffuse reflection film, and further Enhanced diffuse reflection of incoming light.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.
  • the above arrangement reduces the thickness difference between the first polarizer 12 and the second polarizer 11, thereby reducing the stress difference between the first polarizer 12 and the second polarizer 11, thereby improving the display panel. 10 display effect.
  • FIG. 6 is a schematic structural diagram of a display device according to a fourth embodiment of the present application.
  • the difference between the fourth embodiment of the present application and the first embodiment is that the diffuse reflection layer 131 is integrated on the first protective layer 124 .
  • the diffuse reflection layer 131 is integrated on the side of the first protective layer 124 away from the first polarizing layer 123 .
  • the first polarizer 12 and the second polarizer 11 are easily heated or damped in the high temperature and high humidity environment, thereby causing shrinkage or expansion.
  • a stress difference will be generated between the first polarizer 12 and the second polarizer 11 , which will cause the difference between the thickness of the first polarizer 12 and the second polarizer 11 .
  • the display panel 10 bonded by 11 is deformed, which easily causes the liquid crystal layer 103 in the display panel 10 to be bent and deformed, thereby affecting the display effect of the display panel 10 .
  • the above arrangement reduces the thickness difference between the first polarizer 12 and the second polarizer 11 by integrating the diffuse reflection layer 131 on the first protective layer 124, thereby reducing the thickness of the first polarizer 12 and the second polarizer
  • the stress difference between the sheets 11 is improved, thereby improving the display effect of the display panel 10 and improving the performance of the product.
  • the diffuse reflection layer 131 is a one-layer coating structure. Specifically, silica and resin are coated or sprayed on the side of the first protective layer 124 away from the first polarizing layer 123, and a concave-convex surface scattering layer is designed to form the coating structure, thereby enhancing the incidence of incident radiation. The role of the diffuse reflection effect of light.
  • the coating since the coating is relatively thin, the thickness difference between the first polarizer 12 and the second polarizer 11 can be further reduced, thereby further reducing the thickness difference between the first polarizer 12 and the second polarizer 11 .
  • the difference in stress greatly improves the display effect of the display panel 10, thereby further improving the performance of the product, which is conducive to enhancing the market competitiveness of the product.
  • a diffuse reflection layer 131 is integrated on the first protective layer 124, so that the incident light is diffusely reflected on the incident surface of the diffuse reflection layer 131, thereby enhancing the diffuse reflection of the incident light. reflection effect.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.
  • the above arrangement further reduces the thickness difference between the first polarizer 12 and the second polarizer 11, thereby reducing the stress difference between the first polarizer 12 and the second polarizer 11, thereby further improving the
  • the display effect of the display panel 10 improves the performance of the product.
  • the display device provided by the present application provides a diffuse reflection structure on the first polarizing layer, so that the incident light can be reflected in different directions, thereby enhancing the diffuse reflection effect of the incident light.
  • the reporter in the conference room uses the laser pointer to illuminate the LCD screen, the viewer can see the light spot formed by the laser pointer on the display screen from different angles, and then can see the indication content of the laser pointer, thus realizing the LCD display in the display.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)

Abstract

一种显示装置（100），显示装置（100）包括显示面板（10）、第一偏光片（12）和漫反射结构（13），第一偏光片（12）设置于显示面板（10）的出光侧上，第一偏光片（12）包括第一偏振层（123）；漫反射结构（13）设置于第一偏振层（123）上。

Description

显示装置 技术领域
本申请涉及显示技术领域，具体涉及一种显示装置。
 背景技术
目前会议室开会，为了工作汇报，一般需要投影系统显示PPT等内容。常规的投影系统包括投影仪、投影幕布（白墙）和电脑。由于液晶显示器具有价格低、投影显示时不需要投影仪、显示亮度高以及显示效果更精细等优点，越来越多商业显示系统逐渐将常规的投影系统更换为液晶显示系统。
 技术问题
然而，当在会议室内使用液晶显示器进行工作汇报时，由于液晶显示器的反射特性为镜面反射，汇报者使用激光笔照射液晶显示屏时，只有反射方向的人可以看到激光笔在显示屏上形成的光斑，而越偏离反射方向的人越不容易看到激光笔的光斑，进而使得汇报工作无法顺利进行，由此限制了液晶显示器在商业投影显示中的应用。
 技术解决方案
本申请提供一种显示装置，以解决因液晶显示器的漫反射效果较差，进而限制了液晶显示器在商业投影显示中的应用的技术问题。
本申请提供一种显示装置，其包括：
显示面板；
第一偏光片，所述第一偏光片设置于所述显示面板的出光侧上，所述第一偏光片包括第一偏振层；
第二偏光片，所述显示面板还包括第二偏光片，所述第二偏光片设置于所述第一偏光片远离所述显示面板的一侧上；以及
漫反射结构，所述漫反射结构设置于所述第一偏振层上，所述漫反射结构包括漫反射层，所述漫反射层包括相对设置的第一表面和第二表面，所述第一表面为具有凹凸形状的粗糙面。
在本申请的显示装置中，所述第一表面为所述漫反射层远离所述第一偏振层的一面。
在本申请的显示装置中，所述漫反射结构包括漫反射层和多个反射粒子，所述反射粒子设置在所述漫反射层的内部。
在本申请的显示装置中，所述第一偏光片包括依次设置的第一粘结层和第一补偿层，所述第一粘结层设置于所述显示面板的出光侧上，所述第一偏振层设置于所述第一补偿层上。
在本申请的显示装置中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
所述漫反射层集成在所述第一保护层上。
本申请还提供一种显示装置，其包括：
显示面板；
第一偏光片，所述第一偏光片设置于所述显示面板的出光侧上，所述第一偏光片包括第一偏振层；以及
漫反射结构，所述漫反射结构设置于所述第一偏振层上。
在本申请的显示装置中，所述漫反射结构包括漫反射层，所述漫反射层包括相对设置的第一表面和第二表面，所述第一表面为具有凹凸形状的粗糙面。
在本申请的显示装置中，所述第一表面为所述漫反射层远离所述第一偏振层的一面。
在本申请的显示装置中，所述漫反射结构包括漫反射层和多个反射粒子，所述反射粒子设置在所述漫反射层的内部。
在本申请的显示装置中，所述第一偏光片包括依次设置的第一粘结层和第一补偿层，所述第一粘结层设置于所述显示面板的出光侧上，所述第一偏振层设置于所述第一补偿层上。
在本申请的显示装置中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
所述漫反射层集成在所述第一保护层上。
在本申请的显示装置中，所述漫反射结构为漫反射膜，所述漫反射膜集成在所述第一偏振层远离所述第一补偿层的一面上。
在本申请的显示装置中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
所述漫反射结构设置于所述第一保护层远离所述第一偏振层的一侧上，所述显示装置还包括第二粘结层，所述漫反射结构通过所述第二粘结层与所述第一保护层粘结。
在本申请的显示装置中，所述漫反射结构为漫反射膜或漫反射盖板。
在本申请的显示装置中，所述显示面板还包括第二偏光片，所述第二偏光片设置于所述第一偏光片远离所述显示面板的一侧上；
所述第二偏光片包括依次设置的第二保护层、第二偏振层、第二补偿层和第三粘结层，所述第三粘结层位于所述第二补偿层靠近所述显示面板的一侧。
 有益效果
相较于现有技术中的显示装置，本申请提供的显示装置通过在第一偏振层上设置漫反射结构，使得入射光线能够沿不同方向发生反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请第一实施例提供的显示装置的结构示意图；
图2为本申请第一实施例提供的显示装置中漫反射结构的第一结构示意图；
图3为本申请第一实施例提供的显示装置中漫反射结构的第二结构示意图；
图4是本申请第二实施例提供的显示装置的结构示意图；
图5是本申请第三实施例提供的显示装置的结构示意图；
图6是本申请第四实施例提供的显示装置的结构示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
需要说明的是，本申请中的显示面板可以为液晶显示面板，也可以为有机发光二极管显示面板，本申请以下各实施例仅以显示面板为有机发光二极管显示面板为例进行说明，但并不限于此。
另外，本申请中第一偏光片及第二偏光片的膜层结构仅为示意，用以方便描述本申请以下各实施例，但不能理解为对本申请的限制。
请参阅图1至图3。本申请第一实施例提供的显示装置100包括依次设置的第二偏光片11、显示面板10、第一偏光片12和漫反射结构13。第一偏光片12设置于显示面板10的出光侧上。第一偏光片12包括第一偏振层123。漫反射结构13设置于第一偏振层123上。第二偏光片11设置于第一偏光片12远离显示面板10的一侧上。
由此，本申请第一实施例提供的显示装置100通过在第一偏振层123上设置漫反射结构13，使得入射光线能够沿不同方向发生反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。
可以理解的是，由于常规液晶显示器中偏光片的入射面为平滑的表面，当一束平行的入射光线射到偏光片的入射面上时，入射光线会在偏光片的入射面上发生镜面反射而沿同一方向平行射出。因此，当用激光笔照射液晶显示屏时，只有在反射方向的人可以看到激光笔在显示屏上形成的光斑，而在越偏离反射方向的人越不易看到激光笔的光斑。特别的，由于会议室中汇报者本人处于激光笔的入射方向上，导致汇报者本人也看不到激光笔的光斑，进而直接影响了汇报工作的进行。
本申请第一实施例通过在第一偏光片12中的第一偏振层123上设置一漫反射结构13，当平行光束射到漫反射结构13的入射面上时，入射光线在该入射面上发生漫反射而沿不同方向射出，进而当汇报者使用激光笔照射液晶显示屏时，汇报者本人及其他观看者均能看到激光笔在显示屏上形成的光斑，从而使得液晶显示器的镜面反射率降低，漫反射率增加。进一步的，以红光激光笔的投影为例，发明人在大量实验研究中通过计算得出，漫反射结构13的设置能够使得液晶显示器的漫反射率达6%以上。
进一步的，漫反射结构13的透过率介于50%到100%之间。
具体的，在本申请第一实施例中，漫反射结构13的透过率可达90%以上。因此，本第一实施例在增强入射光线的漫反射效果的前提下，由于漫反射结构13的透过率较高，进而能够保证液晶显示器的显示亮度，从而保证了液晶显示器良好的显示效果。
在本申请第一实施例中，第一偏光片12还包括依次设置的第一粘结层121、第一补偿层122和第一保护层124。第一粘结层121设置于显示面板10的出光侧上。第一偏振层123设置于第一补偿层122和第一保护层124之间。漫反射结构13设置于第一保护层124远离第一偏振层123的一侧上。显示装置100还包括第二粘结层14。漫反射结构13通过第二粘结层14与第一保护层124粘结。
可以理解的是，上述设置通过将漫反射结构13设置在第一偏光片12最外侧的第一保护层124上，并通过第二粘结层14与第一保护层124进行贴合，进而在不改变原有工艺制程的前提下，通过在第一偏光片12上增加一漫反射结构13，从而增强了入射光线的漫反射效果。
其中，第二粘结层14可以为光学胶或其他具有粘结作用的胶材，在此不再赘述。
需要说明的是，在第一偏光片12中，第一粘结层121的材料可以为聚丙烯类的压敏胶，第一偏振层123的材料可以为聚乙烯醇，第一保护层124的材料可以为三醋酸纤维素、聚对苯二甲酸乙二醇酯或聚甲基丙烯酸甲酯中的一种或几种的组合，本申请对第一粘结层121、第一补偿层122、第一偏振层123及第一保护层124的材料均不作具体限定。
请继续参阅图2。在本申请第一实施例中，漫反射结构13包括漫反射层131。漫反射层131包括相对设置的第一表面131a和第二表面131b。第一表面131a为具有凹凸形状的粗糙面。
在本申请第一实施例中，第一表面131a为漫反射层131远离第一偏振层123的一面。
由于漫反射层131的第一表面131a为入射光线的入射面，上述设置通过将第一表面131a设置为具有凹凸形状的粗糙面，当一束平行的入射光线射到该粗糙面上时，由于不同入射光线在该粗糙面上各点处的法线方向不同，进而使得反射光线的出射方向不同，也即，经过该粗糙面的反射光线会向着四面八方射出，从而增强了入射光线的漫反射效果。
具体的，采用刻蚀法或光刻胶熔融法等方法在漫反射层131上形成上述粗糙面，本申请对粗糙面的具体形成方法不作具体限定。
另外，第一表面131a的粗糙程度可以根据实际工艺条件进行设定，本申请对此不作限定。
在一些实施例中，第一表面131a为漫反射层131靠近第一偏振层123的一面。由于第一表面131a为具有凹凸形状的粗糙面，凹凸形状的存在能够增大第一表面131a与第二粘结层14之间的接触面积，进而增加了漫反射结构13与第一偏光片12之间的粘结效果，可以有效避免漫反射结构13发生脱落，从而提升了产品的性能，有利于增加液晶显示器的使用寿命。
请继续参阅图3，本申请第一实施例中的漫反射结构13还可以包括漫反射层131和多个反射粒子132。漫反射层131包括相对设置的第一表面131a和第二表面131b。反射粒子132设置在漫反射层131的内部。
可以理解的是，由于漫反射层131内部材料的折射率与外界空气的折射率不同，当一束平行的入射光线射向第一表面131a时，入射光线在第一表面131a上发生反射的同时，还会在第一表面131a发生折射而进入到漫反射层131的内部。
上述设置通过在漫反射层131的内部设置多个反射粒子132，使得进入到漫反射层131内部的折射光线首先在反射粒子132的表面发生反射，然后，该反射光线在第一表面131a上发生折射，然后从漫反射层131的内部射向空气中。由此，从漫反射层131内部穿过第一表面131a而射出的折射光线能够朝向不同方向，进而使得入射光线的漫反射效果大大增强。
具体的，由于漫反射层131由基材制备得到，在漫反射层131的制备过程中，可以通过在基材中掺杂多个反射粒子132而形成漫反射层131。其中，反射粒子132为具有高折射率的透明颗粒。
需要说明的是，本申请第一实施例中反射粒子132的结构仅为示意，用以方便描述本申请各实施例，本申请对反射粒子132的具体数量、形貌、粒径大小、分布情况及材料均不作具体限定。
在一些实施例中，漫反射结构13还可以包括漫反射层131和多个反射粒子132。漫反射层131包括相对设置的第一表面131a和第二表面131b。第一表面131a为具有凹凸形状的粗糙面。反射粒子132设置在漫反射层131的内部。该设置可以进一步提高液晶显示器的漫反射率，从而进一步增强了入射光线的漫反射效果。
进一步的，在本申请第一实施例中，漫反射结构13为漫反射盖板。具体的，该漫反射盖板可以由玻璃等刚性基材制备得到，本申请对盖板的基材不作具体限定。
由于盖板具有良好的刚性，进而能够对液晶显示器起到进一步的保护作用，可以有效防止液晶显示器表面被划伤，从而有利于增加液晶显示器的使用寿命。
在本申请第一实施例中，显示面板10包括阵列基板101和彩膜基板102，以及设置于阵列基板101和彩膜基板102之间的液晶层103。第一偏光片12设置于彩膜基板102上。
第二偏光片11包括依次设置的第二保护层111、第二偏振层112、第二补偿层113和第三粘结层114。第三粘结层114位于第二补偿层113靠近显示面板10的一侧。
本申请第一实施例提供的显示装置100通过在第一偏振层123上设置漫反射盖板，在不改变原有工艺制程的前提下，使得入射光线在漫反射盖板的入射面上发生漫反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。此外，本申请第一实施例中盖板的使用对液晶显示器起到了进一步的保护作用，能够有效防止液晶显示器的表面被划伤，从而提升了产品性能，有利于增加液晶显示器的使用寿命。
请参阅图4，图4为本申请第二实施例提供的显示装置的结构示意图。本申请第二实施例与第一实施例的区别之处在于：漫反射结构13为漫反射膜。
本第二实施例中漫反射膜的使用减薄了液晶显示器的整体厚度，从而有利于提升产品的市场竞争力。
具体的，在漫反射膜中，漫反射层131的基材可以为三醋酸纤维素、聚对苯二甲酸乙二醇酯或聚甲基丙烯酸甲酯中的一种或几种的组合等，本申请对该基材的材料不作具体限定。
本申请第二实施例提供的显示装置100通过在第一偏振层123上设置漫反射膜，在不改变原有工艺制程的前提下，使得入射光线在漫反射膜的入射面上发生漫反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。此外，本申请第二实施例中漫反射膜的使用减薄了液晶显示器的整体厚度，从而有利于提升产品的市场竞争力。
请参阅图5，图5为本申请第三实施例提供的显示装置的结构示意图。本申请第三实施例与第一实施例的区别之处在于：第一偏光片12包括依次设置的第一粘结层121和第一补偿层122。第一粘结层121设置于显示面板10的出光侧上。第一偏振层123设置于第一补偿层122上。漫反射结构13为漫反射膜。漫反射膜集成在第一偏振层123远离第一补偿层122的一面上。
可以理解的是，在高温高湿条件下进行液晶显示器的性能测试时，由于第一偏光片12及第二偏光片11在高温高湿环境下易受热或者受潮，从而会产生收缩或膨胀现象。当第一偏光片12及第二偏光片11的厚度差异较大时，第一偏光片12及第二偏光片11之间会产生应力差，进而导致与第一偏光片12及第二偏光片11贴合的显示面板10发生变形，由此易引起显示面板10内的液晶层103发生弯曲变形，进而影响了显示面板10的显示效果。
上述设置通过将漫反射膜集成在第一偏振层123上，进而减小了第一偏光片12与第二偏光片11之间的厚度差异，减小了第一偏光片12及第二偏光片11之间的应力差，从而提高了显示面板10的显示效果。
具体的，在该漫反射膜中，由于漫反射层131的基材可以为三醋酸纤维素、聚对苯二甲酸乙二醇酯或聚甲基丙烯酸甲酯中的一种或几种的组合，且三醋酸纤维素、聚对苯二甲酸乙二醇酯或聚甲基丙烯酸甲酯等材料具有高强度和优异的支撑性能等优点，因而该漫反射膜能够对液晶显示器起到良好的支撑和保护作用。
本申请第三实施例提供的显示装置100通过在第一偏振层123远离第一补偿层122的一面上集成一层漫反射膜，使得入射光线在漫反射膜的入射面上发生漫反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。此外，上述设置减小了第一偏光片12与第二偏光片11之间的厚度差异，进而减小了第一偏光片12与第二偏光片11之间的应力差，从而提高了显示面板10的显示效果。
请参阅图6，图6为本申请第四实施例提供的显示装置的结构示意图。本申请第四实施例与第一实施例的区别之处在于：漫反射层131集成在第一保护层124上。
具体的，漫反射层131集成在第一保护层124远离第一偏振层123的一面上。
可以理解的是，在高温高湿条件下进行液晶显示器的性能测试时，由于第一偏光片12及第二偏光片11在高温高湿环境下易受热或者受潮，从而会产生收缩或膨胀现象。当第一偏光片12及第二偏光片11的厚度差异较大时，第一偏光片12及第二偏光片11之间会产生应力差，进而导致与第一偏光片12及第二偏光片11贴合的显示面板10发生变形，由此易引起显示面板10内的液晶层103发生弯曲变形，进而影响了显示面板10的显示效果。
上述设置通过将漫反射层131集成在第一保护层124上，进而减小了第一偏光片12与第二偏光片11之间的厚度差异，减小了第一偏光片12及第二偏光片11之间的应力差，从而提高了显示面板10的显示效果，提升了产品的性能。
在一些实施例中，漫反射层131为一层涂层结构。具体的，在第一保护层124远离第一偏振层123的一面上涂布或喷涂二氧化硅和树脂，并设计出凹凸状的表面散乱层，进而形成该涂层结构，从而起到增强入射光线的漫反射效果的作用。另外，由于该涂层较薄，因而可以进一步减小第一偏光片12与第二偏光片11之间的厚度差异，从而进一步减小了第一偏光片12及第二偏光片11之间的应力差，大大提高了显示面板10的显示效果，从而进一步提升了产品的性能，有利于提升产品的市场竞争力。
本申请第四实施例提供的显示装置100通过在第一保护层124上集成一层漫反射层131，使得入射光线在漫反射层131的入射面上发生漫反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。此外，上述设置进一步减小了第一偏光片12与第二偏光片11之间的厚度差异，进而减小了第一偏光片12与第二偏光片11之间的应力差，从而进一步提高了显示面板10的显示效果，提升了产品的性能。
相较于现有技术中的显示装置，本申请提供的显示装置通过在第一偏振层上设置漫反射结构，使得入射光线能够沿不同方向发生反射，进而增强了入射光线的漫反射效果。当会议室内的汇报者使用激光笔照射液晶显示屏时，使得观看者能够从不同角度看到激光笔在显示屏上形成的光斑，进而能够看到激光笔的指示内容，从而实现了液晶显示器在商业投影显示中的应用。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示装置，其包括：
    显示面板；
    第一偏光片，所述第一偏光片设置于所述显示面板的出光侧上，所述第一偏光片包括第一偏振层；
    第二偏光片，所述显示面板还包括第二偏光片，所述第二偏光片设置于所述第一偏光片远离所述显示面板的一侧上；以及
    漫反射结构，所述漫反射结构设置于所述第一偏振层上，所述漫反射结构包括漫反射层，所述漫反射层包括相对设置的第一表面和第二表面，所述第一表面为具有凹凸形状的粗糙面。
  2. 根据权利要求1所述的显示装置，其中，所述第一表面为所述漫反射层远离所述第一偏振层的一面。
  3. 根据权利要求1所述的显示装置，其中，所述漫反射结构包括漫反射层和多个反射粒子，所述反射粒子设置在所述漫反射层的内部。
  4. 根据权利要求3所述的显示装置，其中，所述第一偏光片包括依次设置的第一粘结层和第一补偿层，所述第一粘结层设置于所述显示面板的出光侧上，所述第一偏振层设置于所述第一补偿层上。
  5. 根据权利要求4所述的显示装置，其中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
    所述漫反射层集成在所述第一保护层上。
  6. 一种显示装置，其包括：
    显示面板；
    第一偏光片，所述第一偏光片设置于所述显示面板的出光侧上，所述第一偏光片包括第一偏振层；以及
    漫反射结构，所述漫反射结构设置于所述第一偏振层上。
  7. 根据权利要求6所述的显示装置，其中，所述漫反射结构包括漫反射层，所述漫反射层包括相对设置的第一表面和第二表面，所述第一表面为具有凹凸形状的粗糙面。
  8. 根据权利要求7所述的显示装置，其中，所述第一表面为所述漫反射层远离所述第一偏振层的一面。
  9. 根据权利要求6所述的显示装置，其中，所述漫反射结构包括漫反射层和多个反射粒子，所述反射粒子设置在所述漫反射层的内部。
  10. 根据权利要求7所述的显示装置，其中，所述第一偏光片包括依次设置的第一粘结层和第一补偿层，所述第一粘结层设置于所述显示面板的出光侧上，所述第一偏振层设置于所述第一补偿层上。
  11. 根据权利要求9所述的显示装置，其中，所述第一偏光片包括依次设置的第一粘结层和第一补偿层，所述第一粘结层设置于所述显示面板的出光侧上，所述第一偏振层设置于所述第一补偿层上。
  12. 根据权利要求10所述的显示装置，其中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
    所述漫反射层集成在所述第一保护层上。
  13. 根据权利要求11所述的显示装置，其中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
    所述漫反射层集成在所述第一保护层上。
  14. 根据权利要求10所述的显示装置，其中，所述漫反射结构为漫反射膜，所述漫反射膜集成在所述第一偏振层远离所述第一补偿层的一面上。
  15. 根据权利要求11所述的显示装置，其中，所述漫反射结构为漫反射膜，所述漫反射膜集成在所述第一偏振层远离所述第一补偿层的一面上。
  16. 根据权利要求10所述的显示装置，其中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
    所述漫反射结构设置于所述第一保护层远离所述第一偏振层的一侧上，所述显示装置还包括第二粘结层，所述漫反射结构通过所述第二粘结层与所述第一保护层粘结。
  17. 根据权利要求11所述的显示装置，其中，所述第一偏光片还包括第一保护层，所述第一偏振层设置于所述第一补偿层和所述第一保护层之间；
    所述漫反射结构设置于所述第一保护层远离所述第一偏振层的一侧上，所述显示装置还包括第二粘结层，所述漫反射结构通过所述第二粘结层与所述第一保护层粘结。
  18. 根据权利要求16所述的显示装置，其中，所述漫反射结构为漫反射膜或漫反射盖板。
  19. 根据权利要求17所述的显示装置，其中，所述漫反射结构为漫反射膜或漫反射盖板。
  20. 根据权利要求6所述的显示装置，其中，所述显示面板还包括第二偏光片，所述第二偏光片设置于所述第一偏光片远离所述显示面板的一侧上；
    所述第二偏光片包括依次设置的第二保护层、第二偏振层、第二补偿层和第三粘结层，所述第三粘结层位于所述第二补偿层靠近所述显示面板的一侧。
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CN110824761A (zh) * 2019-10-28 2020-02-21 惠州市华星光电技术有限公司 彩膜基板、液晶显示面板以及彩膜基板的制作方法

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