WO2021168994A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2021168994A1
WO2021168994A1 PCT/CN2020/083179 CN2020083179W WO2021168994A1 WO 2021168994 A1 WO2021168994 A1 WO 2021168994A1 CN 2020083179 W CN2020083179 W CN 2020083179W WO 2021168994 A1 WO2021168994 A1 WO 2021168994A1
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WO
WIPO (PCT)
Prior art keywords
transparent
layer
hole
film layer
display device
Prior art date
Application number
PCT/CN2020/083179
Other languages
English (en)
French (fr)
Inventor
侯少军
梅新东
王超
刘广辉
Original Assignee
武汉华星光电技术有限公司
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 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/955,123 priority Critical patent/US11782302B2/en
Publication of WO2021168994A1 publication Critical patent/WO2021168994A1/zh

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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
    • G02F1/133528—Polarisers
    • 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
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix

Definitions

  • the present invention relates to the field of display, in particular to a display device.
  • the current realization of high screen-to-body ratio mainly uses notch screen, water drop screen or digging screen solution, but this will sacrifice part of the screen space and the lighting device will be directly exposed on the screen.
  • the existing technology uses an under-screen camera.
  • the camera In the solution, the camera is generally set in the camera area at the edge or corner of the screen. This area has no pixel unit or light source and cannot be used to display images, which affects the user experience.
  • there are also full screens that use lift-up cameras and sliding cover solutions on the market but these solutions require additional module structures or increased device thickness, and the consumer experience is not particularly ideal.
  • LCD is one of the mainstream display technologies in the current display market. How to realize a true LCD full-screen display is worth exploring and researching.
  • OLED Organic Light-Emitting Diode
  • OLED Organic Light-Emitting Diode
  • OLED Organic Light-Emitting Diode
  • OLED is a kind of current-type organic light-emitting device, which is a phenomenon of luminescence through the injection and recombination of carriers.
  • the holes generated by the anode and the electrons generated by the cathode will move in the OLED, and are injected into the hole transport layer and the electron transport layer respectively, and then migrate to the light emitting layer.
  • energy excitons are generated, which excites the light-emitting molecules and finally produces visible light.
  • OLED with TFT backplane can be used in the display industry. In addition, no TFT backplane is required.
  • OLED can also be used in the lighting industry.
  • Transparent OLED replaces OLED cathode and anode materials with high transmittance materials to achieve transparency (transparent when not emitting light) Effect.
  • the purpose of the present invention is to solve the technical problem that the camera area cannot display images due to the under-screen camera of the existing display device, and the user experience is poor.
  • the present invention provides a display device, which includes: an optical film layer including a through hole; a display panel provided on a surface on one side of the optical film layer; The through holes are arranged oppositely; the camera is inserted into the through hole and faces the transparent area; and the transparent light source is located in the through hole and is arranged between the camera and the transparent area.
  • the display panel includes: an array substrate; a color filter substrate, which is arranged opposite to the array substrate; a liquid crystal layer, which is arranged between the array substrate and the color filter substrate; a first polarizer, which is arranged on the A surface of the color filter substrate on a side away from the array substrate; and a second polarizer arranged on a surface of the array substrate on a side away from the color filter substrate.
  • the transparent area includes: a first transparent portion located in the first polarizer; a second transparent portion located in the color filter substrate; a third transparent portion located in the liquid crystal layer; and a fourth transparent portion located in the liquid crystal layer.
  • the transparent part is located in the array substrate; and the fifth transparent part is located in the second polarizer; wherein, the first transparent part, the second transparent part, the third transparent part, the The fourth transparent part and the fifth transparent part are arranged opposite to each other.
  • the display device further includes a light-blocking film arranged on the inner side wall of the through hole.
  • the optical film layer includes: a first film layer; a second film layer disposed on the surface on one side of the first film layer; and a third film layer disposed on the second film layer away from the first film layer. A surface on one side of the film.
  • the through hole includes: a first through hole, penetrating through the first film layer; a second through hole, penetrating through the second film layer; and a third through hole, penetrating through the third film Layer; wherein, the first through hole, the second through hole and the third through hole are arranged oppositely.
  • the transparent light source sequentially includes a substrate layer, an anode layer, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode layer.
  • a voltage is formed between the cathode layer and the anode layer.
  • the material of the anode layer is a transparent material; the material of the cathode layer is a transparent material or a semi-transparent material.
  • the display device further includes an LED light bar arranged on one side of the optical film layer.
  • the technical effect of the present invention is that setting the under-screen camera can further increase the screen-to-body ratio of the display device.
  • the transparent light source is turned off, the imaging area is in a lighting state and can be photographed normally.
  • the transparent light source is turned on, the imaging area is in a display state, increasing The large display area also enhances the user experience.
  • FIG. 1 is a state diagram of the imaging area in the display device according to the embodiment of the present invention when displaying;
  • FIG. 1 is a state diagram of the imaging area in the display device according to the embodiment of the present invention when displaying;
  • FIG. 2 is a state diagram when the camera area of the display device according to the embodiment of the present invention is not displayed;
  • FIG. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 4 is a top view of the imaging area according to the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the structure of a transparent light source according to an embodiment of the present invention.
  • the first film layer 212.
  • the second film layer 213.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be mechanically connected, or electrically connected 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 components or the interaction of two components relation.
  • an intermediate medium it can be the internal communication of two components or the interaction of two components relation.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • this embodiment provides a display device including a camera area 100 and a display area 200.
  • the camera area 100 includes a camera 11, a light blocking film 12, a transparent light source 13 and a transparent area 14, and the display area 200 includes an optical film layer 21, a display panel 22 and an LED light bar 23.
  • the optical film layer 21 includes a first film layer 211, a second film layer 212, and a third film layer 213, which can reflect, guide and diffuse light.
  • the first film layer 211 is a reflective sheet, which plays a reflection role, and is used to reflect all the light emitted from the LED light bar 23 and then emit it, to prevent the light from being transmitted downward, and to improve the utilization rate of the light.
  • the second film layer 212 is provided on the upper surface of the first film layer 211 and is a light guide plate, which plays a role of guiding light.
  • the backlight module of the display device is an edge-type backlight module, so the LED light bar 23 is set on the side of the optical film layer 21. After the light exits from the LED light bar 23 and enters the second film layer 212, that is, after the light guide plate, most of the light exits upward, even if a small part of the light exits from below the light guide plate , Will also be reflected upward by the reflective sheet located under the light guide plate. There is also a small part of the light incident on the side of the light guide plate opposite to the light entrance side. Because this side is provided with the light blocking film 12, it will not further penetrate to the imaging area 100, which is improved to a certain extent. The light emission rate.
  • the third film layer 213 is disposed on the upper surface of the second film layer 212, and the third film layer 213 is a diffusion sheet, so that the incident light is uniformly diffused and then emitted.
  • a through hole is provided in the optical film layer 12 for placing components such as a camera.
  • the first through hole penetrates through the first film layer 211
  • the second through hole penetrates through the second film layer 212
  • the third through hole penetrates through the third film layer 213, the first through hole, the second through hole and
  • the third through holes are arranged oppositely and communicate with each other.
  • the inner diameters of the first through hole, the second through hole, and the third through hole are equal in size, so that the imaging area 100 and the display area 200 are more closely attached.
  • the display panel 22 includes a first polarizer 221, an array substrate 222, a liquid crystal layer 223, a color filter substrate 224, and a second polarizer 225.
  • the display panel 22 implements a display function.
  • the first polarizer 221 is disposed on the upper surface of the third film layer 213 and plays a role of polarizing light.
  • the array substrate 222 is disposed on the upper surface of the first polarizer 221 and is a circuit switch of the display device.
  • the color filter substrate 224 is disposed above the array substrate 222 and opposite to the array substrate 222.
  • the color filter substrate 224 includes RGB color resistors, black matrix, isolation columns, cover plates, and the like.
  • the liquid crystal layer 223 is disposed between the array substrate 222 and the color filter substrate 224.
  • the second polarizer 225 is disposed on the upper surface of the color filter substrate 224 and plays a role of polarizing light.
  • the transparent area 14 penetrates the display panel 22 and is disposed opposite to the through hole.
  • the transparent area 14 includes a first transparent portion 141, a second transparent portion 142, a third transparent portion 143, a fourth transparent portion 144, and a fifth transparent portion 145.
  • the first transparent portion 141 penetrates through the first polarizer 221, and the first transparent portion 141 still has a polarizing effect, but it is a transparent material, which facilitates the passage of light.
  • the second transparent portion 142 penetrates through the array substrate 222, and the second transparent portion 142 still functions to control the circuit switch, but it is a transparent material, which facilitates the passage of light.
  • the third transparent portion 143 penetrates the liquid crystal layer 223, and the third transparent portion 143 still has the function of driving the liquid crystal, but it is a light-transmissive portion, which facilitates light to pass through.
  • the fourth transparent part 144 penetrates the color filter substrate 224, and the fourth transparent part 144 is still provided with RGB color resists, black matrix, isolation pillars, and cover plates, etc., which can achieve light filtering, but its material has extremely high transparency and is convenient The light passes through.
  • the fifth transparent portion 145 penetrates through the second polarizer 225, and the fifth transparent portion 145 still has a polarizing effect, but it is a transparent material, which facilitates the passage of light.
  • the camera 11 is arranged in the through hole, and the camera 11 includes a flexible circuit board, a connector, a photosensitive chip, a filter element, a lens, a support column, a focus motor, a lens and other devices.
  • the light-blocking film 12 is attached to the inner side wall of the through hole and is arranged between the supporting column 116 and the optical film layer 21 to block or reflect light and prevent the light emitted from the LED light bar 23 from entering Go to camera 11.
  • Light-blocking coatings or components can be provided by attaching, spraying, silk-screening, etc., and light-blocking iron frames can also be placed to achieve the light-blocking effect.
  • the top view of the imaging area 100 is shown in FIG. 4.
  • the transparent light source 13 includes a substrate layer 131, an anode layer 132, a hole injection layer 133, a hole transport layer 134, a light emitting layer 135, an electron transport layer 136, an electron injection layer 137 and a cathode layer 138.
  • the structure of the transparent light source 13 is basically the same as that of the ordinary OLED surface light source.
  • the transparent light source 13 has no TFT backplane
  • the cathode layer 138 uses a transparent or semi-transparent material (high transparency is preferred Cathode material)
  • the light-emitting layer 135 uses a single light-emitting layer to emit white light or a transparent structure such as multiple light-emitting layers to emit white light, all of which are transparent film layers, including the electron injection layer 137, the electron transport layer 138, the hole injection layer 133, and the hole transport layer 134 also uses transparent materials.
  • they can also be integrated with cathode or anode materials through processes such as ion implantation, doping, evaporation, and sputtering.
  • the light-emitting layer can provide a uniform white surface light source in the upper and lower directions.
  • the brightness of the light emitted by the transparent light source OLED can be controlled by adjusting the current.
  • the transparent light source OLED does not provide illumination, because the entire transparent light source
  • the light source materials all have a high transmittance, and external light can pass through the device, which looks transparent.
  • the transparent light source 13 is mounted on the upper surface of the camera 11, and can be mounted on the upper surface of the supporting column or covering the entire upper surface of the camera 11. Because the supporting column is a ring-shaped supporting column, the transparent light source 13 also surrounds the The lens is evenly distributed on the supporting column, and the transparent light source 13 can also be connected to the flexible circuit board or the photosensitive element and other related control elements through a lead, so that the transparent light source 13 and the camera 11 can be controlled synchronously, that is, when When the camera 11 is working, the transparent light source 13 can be controlled not to turn on to realize the camera function; when the camera 11 is turned off, the transparent light source 13 can be controlled to start working, so that the camera area 100 can be displayed normally and a full screen is realized.
  • the imaging area 100 When the transparent light source 13 is turned on, the imaging area 100 turns on the backlight mode. At this time, the lighting devices such as the photosensitive chip are in a non-operating state, that is, no lighting, because the transparent area 14 of the imaging area 100 is still provided with an array substrate and a color film substrate And related devices such as the liquid crystal layer can realize the function of light-emitting display, the imaging area 100 can display normally, and the display area 200 is in a normal display state, that is, a full-screen effect is realized (see FIG. 1).
  • the imaging area 100 turns off the backlight mode.
  • the lighting devices such as the photosensitive chip are in working state, that is, start to collect light.
  • the liquid crystal (ie, the third transparent portion 143) corresponding to the imaging area 100 is completely changed by adjusting the LCD drive.
  • the display area 200 still displays normally. Because there is a light blocking film 12 between the camera 11 and the side-entry optical film 21, the backlight of the display area 200 will not affect the normal lighting of the camera 11, and the camera 11 can work normally (see Figure 2) .
  • the technical effect of the display device described in this embodiment is that setting an under-screen camera can further increase the screen-to-body ratio of the display device.
  • the transparent light source is turned off, the imaging area is in a lighting state and can be photographed normally.
  • the transparent light source is turned on, the imaging area In the display state, while increasing the area of the display area, it enhances the user experience.

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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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Studio Devices (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种显示装置，包括光学膜层（21），包括一通孔；显示面板（22），设于光学膜层（21）一侧的表面；显示面板（22）包括一透明区（14），与通孔相对设置；摄像头（11），插入至通孔内，且朝向透明区（14）；以及透明光源（13），位于通孔内，且设于摄像头（11）与透明区（14）之间。

Description

显示装置 技术领域
本发明涉及显示领域，特别涉及一种显示装置。
 背景技术
随着显示技术的不断发展与人们对更佳显示效果的追求，在终端设备的应用中（如手机、Pad等），高屏占比屏幕已经成为主流趋势，由于终端设备中一些功能器件如摄像头、光线传感器等的采光需求，显示屏幕难以实现最佳的屏占比。
目前实现高屏占比除了收窄边框外主要是采用刘海屏、水滴屏或挖孔屏方案，但这将牺牲部分屏幕空间且采光器件会直接暴露在屏幕上，现有技术中采用屏下摄像头的方案，摄像头一般是设置于屏幕边缘处或角落处的摄像区，这一区域没有像素单元或光源，不能用于显示影像，影响用户体验。目前市面上也有采用升降式摄像头和滑盖方案的全面屏，但这些方案都需增加额外的模组结构或增加设备厚度且消费体验不是特别理想。LCD是目前显示市场中主流显示技术之一，如何实现真正的LCD全面屏显示值得探索与研究。
OLED（Organic Light-Emitting Diode），又称为有机电激光显示、有机发光半导体。OLED属于一种电流型的有机发光器件，是通过载流子的注入和复合而致发光的现象。OLED在电场的作用下，阳极产生的空穴和阴极产生的电子就会发生移动，分别向空穴传输层和电子传输层注入，迁移到发光层。当二者在发光层相遇时，产生能量激子，从而激发发光分子最终产生可见光。OLED搭配TFT背板可用于显示屏行业，此外无需TFT背板，OLED也可用于照明行业，透明OLED是将OLED阴阳电极等材料替换为高透过率的材料来达到透明（不发光时透明）的效果。
 技术问题
本发明的目的在于，解决现有的显示装置因设置屏下摄像头导致摄像区不能显示影像，用户体验较差的技术问题。
 技术解决方案
为实现上述目的，本发明提供一种显示装置，包括：光学膜层，包括一通孔；显示面板，设于所述光学膜层一侧的表面；所述显示面板包括一透明区，与所述通孔相对设置；摄像头，插入至所述通孔内，且朝向所述透明区；以及透明光源，位于所述通孔内，且设于所述摄像头与所述透明区之间。
进一步地，所述显示面板包括：阵列基板；彩膜基板，与所述阵列基板相对设置；液晶层，设于所述阵列基板与所述彩膜基板之间；第一偏光片，设于所述彩膜基板远离所述阵列基板一侧的表面；以及第二偏光片，设于所述阵列基板远离所述彩膜基板一侧的表面。
进一步地，所述透明区包括：第一透明部，位于所述第一偏光片内；第二透明部，位于所述彩膜基板内；第三透明部，位于所述液晶层内；第四透明部，位于所述阵列基板内；以及第五透明部，位于所述第二偏光片内；其中，所述第一透明部、所述第二透明部、所述第三透明部、所述第四透明部以及所述第五透明部相对设置。
进一步地，所述显示装置还包括阻光膜片，设于所述通孔的内侧壁。
进一步地，所述光学膜层包括：第一膜层；第二膜层，设于所述第一膜层一侧的表面；第三膜层，设于所述第二膜层远离所述第一膜层一侧的表面。
进一步地，所述通孔包括：第一通孔，贯穿于所述第一膜层；第二通孔，贯穿于所述第二膜层；以及第三通孔，贯穿于所述第三膜层；其中，所述第一通孔、所述第二通孔以及所述第三通孔相对设置。
进一步地，所述透明光源依次包括衬底层、阳极层、空穴注入层、空穴传输层、发光层、电子传输层、电子注入层以及阴极层。
进一步地，所述阴极层与所述阳极层之间形成电压。
进一步地，所述阳极层的材质为透明材料；所述阴极层的材质为透明材料或半透明材料。
进一步地，所述显示装置还包括LED灯条，设于所述光学膜层的一侧面。
 有益效果
本发明的技术效果在于，设置屏下摄像头可进一步提升显示装置的屏占比，当透明光源关闭时，摄像区处于采光状态，能正常拍摄，当透明光源开启时，摄像区处于显示状态，增大显示区域面积的同时，提升用户的体验感。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本发明实施例所述显示装置中摄像区显示时的状态图；
图2为本发明实施例所述显示装置中摄像区不显示时的状态图；
图3为本发明实施例所述显示装置的结构示意图；
图4为本发明实施例所述摄像区的俯视图；
图5为本发明实施例所述透明光源的结构示意图。
部分组件标识如下：
100、摄像区；200、显示区；
11、摄像头；12、阻光膜片；13、透明光源；14、透明区；15、导光元件；
131、衬底层；132、阳极层；133、空穴注入层；134、空穴传输层；135、发光层；136、电子传输层；137、电子注入层；138阴极层；
141、第一透明部；142、第二透明部；143、第三透明部；144、第四透明部；145、第五透明部；
21、光学膜层；22、显示面板；23、LED灯条；
211、第一膜层；212、第二膜层；213、第三膜层；
221、第一反射片；222、阵列基板；223、液晶层；224、彩膜基板；225、第二反射片。
 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。
具体的，请参阅图1至图5，本实施例提供一种显示装置，包括摄像区100以及显示区200。摄像区100包括摄像头11、阻光膜片12、透明光源13以及透明区14，显示区200包括光学膜层21、显示面板22以及LED灯条23。
如图3所示，光学膜层21包括第一膜层211、第二膜层212以及第三膜层213，实现对光线的反射、导向以及扩散作用。
第一膜层211为反射片，起到反射作用，用以将来自LED灯条23的出射光线全部反射后出射，防止光线向下传输，提高光线的利用率。
第二膜层212设于第一膜层211的上表面，为导光板，起到对光线的导向作用，本实施例中显示装置的背光模组为侧入式背光模组，所以LED灯条23设于光学膜层21的侧面，光线从LED灯条23出射后，进入第二膜层212，即导光板后，光线大部分向上出射，即便有小部分光线从所述导光板的下方出射，也会被位于所述导光板下方的反射片向上反射。还有小分部光线入射到所述导光板与其入光侧相对设置的一侧面，因为这一侧面设有阻光膜片12，所以也不会进一步穿透至摄像区100，一定程度上提高了光线的出射率。
第三膜层213设于第二膜层212的上表面，第三膜层213为扩散片，使得入射的光线均匀扩散后出射。
光学膜层12内设有一通孔，用以放置摄像头等部件。第一通孔贯穿于第一膜层211，第二通孔贯穿于第二膜层212，第三通孔贯穿于第三膜层213，所述第一通孔、所述第二通孔与所述第三通孔相对设置且相互连通。优选的，所述第一通孔、所述第二通孔与所述第三通孔的内径大小相等，使得摄像区100与显示区200之间更易紧密贴合。
显示面板22包括第一偏光片221、阵列基板222、液晶层223、彩膜基板224以及第二偏光片225。显示面板22实现显示功能。
第一偏光片221设于第三膜层213的上表面，起到偏光作用。阵列基板222设于第一偏光片221的上表面，为显示装置的电路开关。彩膜基板224设于阵列基板222的上方，与阵列基板222相对设置，彩膜基板224包括RGB色阻、黑色矩阵、隔离柱以及盖板等。液晶层223设于阵列基板222与彩膜基板224之间。第二偏光片225设于彩膜基板224的上表面，起到偏光作用。
透明区14贯穿于显示面板22，且与所述通孔相对设置，透明区14包括第一透明部141、第二透明部142、第三透明部143、第四透明部144以及第五透明部145。第一透明部141贯穿于第一偏光片221，第一透明部141仍旧具有偏光作用，但其为透明材料，便于光线穿过。第二透明部142贯穿于阵列基板222，第二透明部142依旧具有控制电路开关的作用，但其为透明材料，便于光线穿过。第三透明部143贯穿于液晶层223，第三透明部143依旧具有驱动液晶的作用，但其为可透光部分，便于光线穿过。第四透明部144贯穿于彩膜基板224，第四透明部144内依旧设有RGB色阻、黑色矩阵、隔离柱以及盖板等，可实现滤光作用，但其材质的透明度极高，便于光线穿过。第五透明部145贯穿于第二偏光片225，第五透明部145依旧具有偏光作用，但其为透明材料，便于光线穿过。
摄像头11设于所述通孔内，摄像头11包括可柔性线路板、连接器、感光芯片、滤光元件、镜片、支撑柱、对焦马达以及镜头等器件。
阻光膜片12贴附于所述通孔的内侧壁，且设于支撑柱116与光学膜层21之间，起到阻隔或反射光线的作用，防止从LED灯条23处出射的光线进入到摄像头11处。可通过贴付、喷涂、丝印等方式设置阻光涂层或元件，也可以放置挡光铁框等，都能实现阻光作用，摄像区100的俯视图如图4所示。
如图5所示，透明光源13包括衬底层131、阳极层132、空穴注入层133、空穴传输层134、发光层135、电子传输层136、电子注入层137以及阴极层138。透明光源13的结构与普通OLED面光源结构基本相同，不同之处在于在本实施例中透明光源13无TFT背板，同时其阴极层138采用的材料使用透明活半透明材料（优先使用高透明度阴极材料），发光层135使用单发光层发白光或多发光层等透明结构发白光，都为透明膜层，其中电子注入层137、电子传输层138、空穴注入层133、空穴传输层134也使用透明材料，根据透明与性能等需求，他们也可以通过离子注入、掺杂、蒸镀、溅射等工艺与阴极或阳极材料合成一体。打开开关阴阳极通电时，发光层可向上下两个方向提供均匀的白色面光源，通过调节电流可控制透明光源OLED发出光线的亮度，当开光关闭时，透明光源OLED不提供照明，由于整个透明光源材料均拥有较高透过率，外界光线可穿过该装置，看起来即透明。
透明光源13安装至摄像头11的上表面，可安装至所述支撑柱的上表面或覆盖于整个摄像头11的上表面，因为所述支撑柱为环状支撑柱，所以透明光源13也环绕所述镜头，均匀分布于所述支撑柱上，透明光源13也可通过引线与所述柔性线路板或所述感光元件等相关控制元件相连接，可以实现透明光源13与摄像头11的同步控制，即当摄像头11工作时，可控制透明光源13不开启，实现摄像功能；当摄像头11关闭时，可控制透明光源13开始工作，使得摄像区100能正常显示，实现全面屏。
当透明光源13开启时，摄像区100开启背光模式，此时所述感光芯片等采光器件处于非工作状态，即不采光，因为摄像区100的透明区14内依旧设有阵列基板、彩膜基板以及液晶层等相关器件，能实现发光显示的功能，摄像区100能正常显示，同时显示区200处于正常显示状态，即实现全面屏效果（参见图1）。
当透明光源13关闭时，摄像区100关闭背光模式，此时所述感光芯片等采光器件处于工作状态，即开始采光，通过LCD驱动调整摄像区100对应液晶（即第三透明部143）全部转变为高透过率状态，搭配第二透明部142和第四透明部144的高透过率设计，外界光线可透过显示面板22进入摄像区100下方对应的摄像头11，实现采光功能，此时显示区200依旧正常显示，由于摄像头11与侧入光学膜层21间有阻光膜片12，因此显示区200的背光不会影响摄像头11的正常采光，摄像头11能正常工作（参见图2）。
本实施例所述显示装置的技术效果在于，设置屏下摄像头可进一步提升显示装置的屏占比，当透明光源关闭时，摄像区处于采光状态，能正常拍摄，当透明光源开启时，摄像区处于显示状态，增大显示区域面积的同时，提升用户的体验感。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示装置进行了详细介绍，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技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (10)

  1. 一种显示装置，其包括：
    光学膜层，包括一通孔；
    显示面板，设于所述光学膜层一侧的表面；所述显示面板包括一透明区，与所述通孔相对设置；
    摄像头，插入至所述通孔内，且朝向所述透明区；以及
    透明光源，位于所述通孔内，且设于所述摄像头与所述透明区之间。
  2. 如权利要求1所述的显示装置，其中，
    所述显示面板包括：
    阵列基板；
    彩膜基板，与所述阵列基板相对设置；
    液晶层，设于所述阵列基板与所述彩膜基板之间；
    第一偏光片，设于所述彩膜基板远离所述阵列基板一侧的表面；以及
    第二偏光片，设于所述阵列基板远离所述彩膜基板一侧的表面。
  3. 如权利要求2所述的显示装置，其中，
    所述透明区包括：
    第一透明部，位于所述第一偏光片内；
    第二透明部，位于所述彩膜基板内；
    第三透明部，位于所述液晶层内；
    第四透明部，位于所述阵列基板内；以及
    第五透明部，位于所述第二偏光片内；
    其中，所述第一透明部、所述第二透明部、所述第三透明部、所述第四透明部以及所述第五透明部相对设置。
  4. 如权利要求1所述的显示装置，其还包括
    阻光膜片，设于所述通孔的内侧壁。
  5. 如权利要求1所述的显示装置，其中，
    所述光学膜层包括：
    第一膜层；
    第二膜层，设于所述第一膜层一侧的表面；
    第三膜层，设于所述第二膜层远离所述第一膜层一侧的表面。
  6. 如权利要求5所述的显示装置，其中，
    所述通孔包括：
    第一通孔，贯穿于所述第一膜层；
    第二通孔，贯穿于所述第二膜层；以及
    第三通孔，贯穿于所述第三膜层；
    其中，所述第一通孔、所述第二通孔以及所述第三通孔相对设置。
  7. 如权利要求1所述的显示装置，其中，
    所述透明光源依次包括衬底层、阳极层、空穴注入层、空穴传输层、发光层、电子传输层、电子注入层以及阴极层。
  8. 如权利要求7所述的显示装置，其中，
    所述阴极层与所述阳极层之间形成电压。
  9. 如权利要求7所述的显示装置，其中，
    所述阳极层的材质为透明材料；
    所述阴极层的材质为透明材料或半透明材料。
  10. 如权利要求1所述的显示装置，其还包括
    LED灯条，设于所述光学膜层的一侧面。
PCT/CN2020/083179 2020-02-26 2020-04-03 显示装置 WO2021168994A1 (zh)

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