WO2021121347A1 - Ensemble écran et dispositif électronique - Google Patents

Ensemble écran et dispositif électronique Download PDF

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Publication number
WO2021121347A1
WO2021121347A1 PCT/CN2020/137418 CN2020137418W WO2021121347A1 WO 2021121347 A1 WO2021121347 A1 WO 2021121347A1 CN 2020137418 W CN2020137418 W CN 2020137418W WO 2021121347 A1 WO2021121347 A1 WO 2021121347A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
protective cover
layer
screen assembly
screen
Prior art date
Application number
PCT/CN2020/137418
Other languages
English (en)
Chinese (zh)
Inventor
张涛
易永念
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021121347A1 publication Critical patent/WO2021121347A1/fr

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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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly

Definitions

  • This application relates to the field of electronic technology, and in particular to a screen assembly and electronic equipment.
  • under-screen recognition such as under-screen fingerprint recognition
  • OLED Organic Light-Emitting Diode
  • LCD liquid crystal display
  • infrared lamps and image acquisition modules are usually set below the LCD screen.
  • the infrared lamp emits infrared light to the LCD screen.
  • the infrared light emitted by the infrared lamp penetrates the screen and is reflected by the target object to form the emitted light, which penetrates the LCD screen again, and is finally received by the image acquisition module for photosensitive recognition.
  • the infrared lamp and the image acquisition module are both installed at the bottom of the screen, causing the light emitted by the light source module to penetrate the screen and return to the image acquisition module. Serious losses occur during the grouping process, and because the backlight layer is composed of multiple layers of film materials, the infrared light will be diffracted and scattered during the process of penetrating the backlight layer, which affects the recognition result of the image acquisition module.
  • the embodiment of the present application provides a screen assembly and an electronic device.
  • a screen assembly including:
  • the protective cover is located on the light emitting side of the display panel, the protective cover is provided with a receiving portion on a side close to the display panel, and the receiving portion is located in an area where the protective cover does not cover the display panel;
  • the light source module is accommodated in the accommodating part;
  • a supporting structure located on the side of the display panel away from the protective cover, and the bottom plate of the supporting structure is provided with a through hole;
  • the image acquisition module is arranged on the side of the bottom plate away from the display panel and is arranged opposite to the through hole.
  • an electronic device including the screen assembly described in the first aspect.
  • the accommodating part By arranging the accommodating part in the area where the protective cover is close to the display panel and not covering the display panel, and placing the light source module in the accommodating part, the infrared light emitted by the light source module can be concentrated on the protective cover to reduce Scattering loss, and infrared light only needs to penetrate the protective cover plate during the emission process; by providing a through hole on the bottom plate of the supporting structure and setting the image acquisition module on the side of the bottom plate away from the display panel and opposite to the through hole The position can make the reflected light formed by the reflection of the target object need not penetrate the bottom plate.
  • the infrared light only penetrates the protective cover and the display panel once during the process from emission to the reflection of the target object and then back to the image acquisition module, thereby reducing the path loss of the infrared light and improving the recognition of the image acquisition module.
  • the accuracy of the result is a result of the infrared light only penetrates the protective cover and the display panel once during the process from emission to the reflection of the target object and then back to the image acquisition module, thereby reducing the path loss of the infrared light and improving the recognition of the image acquisition module. The accuracy of the result.
  • Figure 1 is a schematic diagram of an existing under-screen recognition scheme
  • FIG. 2 is a schematic structural diagram of a screen assembly provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a protective cover provided by an embodiment of the application.
  • FIG. 4 is a schematic structural diagram of another screen assembly provided by an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of another protective cover provided by an embodiment of the application.
  • infrared lights and image acquisition modules are usually set under the LCD screen.
  • the target object is close to the LCD screen (such as the user’s finger touching the LCD screen)
  • the infrared The lamp emits infrared light to the LCD screen.
  • the infrared light emitted by the infrared lamp penetrates the multilayer film and protective cover of the LCD screen one by one, and is reflected by the target object to form the emitted light, which penetrates the protective cover and multilayer of the LCD screen again
  • the film material is finally returned to the image acquisition module, and the image acquisition module performs photosensitive identification according to the received reflected light.
  • some of the film materials of the LCD screen (such as the liquid crystal layer and the backlight layer) have weak light transmission ability, and the infrared light will be diffracted and scattered during the process of penetrating the multilayer film material, which will cause the infrared light to be in the process of being diffracted and scattered. Generate path loss, which affects the recognition result of the image acquisition module.
  • the embodiments of the present application provide a screen assembly and an electronic device to solve the above-mentioned problems in related technologies.
  • embodiments of the present application provide a screen assembly
  • the screen assembly can be applied to electronic equipment
  • the screen assembly may include: a display panel 110, a protective cover 120, a supporting structure 130, The light source module 140 and the image acquisition module 150.
  • the display panel 110 may be a liquid crystal display panel, which may include a circuit layer 111 and a backlight layer 112, and the circuit layer 111 is provided on the light emitting side of the backlight layer 112.
  • the liquid crystal display panel also includes a polarizing plate, a liquid crystal layer, a substrate, etc., which are not shown in the figure.
  • the display panel 110 may also be other types of display panels, which are not limited in the embodiment of the present application.
  • the protective cover 120 is located on the light emitting side of the display panel 110, and the protective cover 120 is provided with a receiving portion 121 on the side close to the display panel 110, and the receiving portion 121 is located in an area where the protective cover 120 does not cover the display panel 110.
  • the material of the protective cover 120 may be glass, or may be a PVC material with strong light-transmitting ability, which is not limited in the embodiment of the present application.
  • the light source module 140 is accommodated in the accommodating part 121, and the light source module 140 is used to emit infrared light to the protective cover 120.
  • the light source module 140 may include at least one infrared lamp and a base for installing the at least one infrared lamp.
  • the at least one infrared lamp is accommodated in the accommodating part 121 of the protective cover 120.
  • the supporting structure 130 is located on the side of the display panel 110 away from the protective cover 120 and used to support the display panel 110, and the bottom plate 131 of the supporting structure 130 is provided with a through hole 132.
  • the image acquisition module 150 is disposed on a side of the bottom plate 131 away from the display panel 110 and opposite to the through hole 132 to receive the reflected light formed by the infrared light emitted by the light source module 140 through the through hole 132.
  • the image acquisition module 150 may be at least one of a fingerprint recognition module, an infrared camera, and other modules with infrared photosensitive recognition functions.
  • the light source module 140 emits infrared light to the protective cover 120, and the infrared light emitted by the light source module 140 is totally reflected in the protective cover 120, and passes through the target on the side of the protective cover 120 away from the display panel 110.
  • the reflected light from an object (such as a user's finger, the target object is shown as the user's finger in FIGS. 2 and 4) is reflected through the protective cover 120 and the display panel 110 in turn, and finally passes through the bottom plate 131 of the supporting structure 130.
  • the hole 132 returns to the image acquisition module 150.
  • the image acquisition module 150 performs photosensitive detection and identification of the target object based on the received reflected light. In this way, the purpose of under-screen recognition of the image acquisition module 150 can be achieved.
  • the accommodating portion 121 is provided in the area where the protective cover 120 is close to the display panel 110 and does not cover the display panel 110, and the light source module 140 is placed in the accommodating portion 121, so that the light source
  • the infrared light emitted by the module 140 is concentrated on the protective cover 120 to reduce scattering loss, and the infrared light only needs to penetrate the protective cover 120 during the emission process;
  • the bottom plate 131 of the supporting structure 130 is provided with through holes and
  • the image acquisition module 150 is arranged on the bottom plate 131 at a position far from the display panel 110 and opposite to the through hole, so that the reflected light formed by the target object does not need to penetrate the bottom plate 131.
  • the infrared light only needs to penetrate the protective cover 120 and the display panel 110 once when the infrared light is reflected from the target object and then returned to the image acquisition module 150, thereby reducing the path loss of the infrared light and the penetration of the infrared light.
  • the scattering loss and diffraction loss generated when the panel 110 is displayed can improve the accuracy of the under-screen photosensitive recognition result of the image acquisition module 150.
  • the protective cover 120 in the screen assembly described in the embodiment of the present application may have a double-layer laminated structure.
  • the first layer 122 of the protective cover is located on the light emitting side of the display panel 110 and the first layer 122 is close to the side of the display panel 110 and does not cover the area of the display panel 110 is provided with a receiving portion 121; the second layer 123 of the protective cover It is located on the side of the first layer 122 away from the display panel 110.
  • the shape of the receiving portion 121 may be a hole type, such as a through hole or a blind hole.
  • the aperture size of the opening may be set based on the volume of the infrared lamp in the light source module 140 to be able to accommodate the infrared lamp.
  • the receiving portion 121 is formed by opening the hole, and the processing technology is simple and the cost is low.
  • the protective cover 120 with a double-sided laminated structure and disposing the receiving portion 121 on a layer of the protective cover close to the display panel 110, the protection effect of the display panel 110 can be enhanced.
  • the second layer 123 of the protective cover 120 is close to the side of the first layer 122 and opposite to the containing portion 121 is coated with an infrared ink coating 124.
  • the second layer 123 of the protective cover 120 is close to the side of the first layer 122 and The area where the infrared ink coating 124 is not coated is coated with a color ink coating 125.
  • the first layer 122 and the second layer 123 of the protective cover 120 are adhered by the optical glue 126, thereby avoiding the protection of the first layer 122 and the second layer 123.
  • the relative movement of the layer 122 and the second layer 123 enhances the stability of the relative position between the first layer 122 and the second layer 123.
  • the protective cover 120 in the screen assembly described in the embodiment of the present application may have a single-layer structure.
  • the protective cover 120 is provided with a receiving portion 121 in an area close to the display panel 110 and not covering the display panel 110.
  • the shape of the accommodating portion 121 may be a groove, and the accommodating portion 121 is formed by grooving the protective cover 120 to avoid damage to the protective cover 120 during the processing of the accommodating portion 121.
  • the cost of the screen assembly can be saved by adopting the protective cover 120 of a single-layer structure, and the strength of the protective cover 120 can be enhanced.
  • the inner wall of the groove is coated with an infrared ink coating 124.
  • the protective cover 120 is coated with a color ink coating on the side close to the display panel 110 125.
  • the shape of the groove of the protective cover 120 may be any shape that can accommodate the light source module 140.
  • the groove may be a square shape, or may be a trapezoid shape, which is not limited in the embodiment of the present application.
  • the area of the bottom surface of the accommodating part 121 may be smaller than the opening area of the accommodating part.
  • the accommodating part can be conveniently processed and the infrared ink coating can be applied easily.
  • the infrared light emitted by the light source module 140 can be better concentrated to further reduce the scattering loss of the infrared light.
  • the protective cover 120 and the display panel 110 are bonded by optical glue 160, which can prevent the protective cover 120 and the display panel 110 from facing each other.
  • the movement enhances the stability of the relative position between the protective cover 120 and the display panel 110, thereby further enhancing the protection effect of the display panel 110 and prolonging the service life of the display panel 110.
  • An embodiment of the present application also provides an electronic device including the above-mentioned screen component.
  • the electronic device may also include a series of basic components such as a receiver, a speaker, a microphone, and a housing for each component of the solute, which will not be repeated in the embodiment of the present application.
  • the electronic device may be a mobile phone, a tablet computer, a smart wearable device, a personal digital assistant (PDA), a laptop computer, etc. Not limited.
  • PDA personal digital assistant
  • the electronic device with the above-mentioned screen assembly can achieve the purpose of under-screen recognition of the image acquisition module, and can reduce the infrared light emitted by the light source module in the process of penetrating the protective cover and the display panel. Loss of path to improve the accuracy of the recognition results under the screen.
  • this application can be provided as a method, a system, or a computer program product. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un ensemble écran et un dispositif électronique, l'ensemble écran comprenant : un écran d'affichage (110) ; un couvercle de protection (120), qui est situé sur le côté de sortie de lumière de l'écran d'affichage (110), le côté du couvercle de protection (120) proche de l'écran d'affichage (110) étant pourvu d'une partie de réception (121), et la partie de réception (121) étant située dans une région où le couvercle de protection (120) ne recouvre pas l'écran d'affichage (110) ; un module de source de lumière (140), qui est logé dans la partie de réception (121) ; une structure de support (130), qui est située sur le côté de l'écran d'affichage (110) à distance du couvercle de protection (120), une plaque de fond (131) de la structure de support (130) étant pourvue d'un trou traversant (132) ; et un module d'acquisition d'image (150), qui est disposé sur le côté de la plaque inférieure (131) à l'opposé de l'écran d'affichage (110) et est disposé à l'opposé du trou traversant (132).
PCT/CN2020/137418 2019-12-20 2020-12-18 Ensemble écran et dispositif électronique WO2021121347A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911328418.4 2019-12-20
CN201911328418.4A CN111090184A (zh) 2019-12-20 2019-12-20 屏幕组件及电子设备

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WO2021121347A1 true WO2021121347A1 (fr) 2021-06-24

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WO (1) WO2021121347A1 (fr)

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* Cited by examiner, † Cited by third party
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CN111090184A (zh) * 2019-12-20 2020-05-01 维沃移动通信有限公司 屏幕组件及电子设备
CN111752027B (zh) * 2020-07-08 2022-02-22 武汉华星光电技术有限公司 一种显示面板及显示装置

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US20140125601A1 (en) * 2012-11-06 2014-05-08 Primax Electronics Ltd. Touch display device
CN206559405U (zh) * 2017-01-03 2017-10-13 广东欧珀移动通信有限公司 面板及移动终端
CN109271943A (zh) * 2018-09-27 2019-01-25 联想(北京)有限公司 一种电子设备及信息处理方法
CN209072543U (zh) * 2018-10-15 2019-07-05 深圳市汇顶科技股份有限公司 指纹识别装置及具有指纹识别功能的终端设备
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CN110475006A (zh) * 2019-07-31 2019-11-19 武汉华星光电半导体显示技术有限公司 柔性保护盖板及显示装置
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CN111090184A (zh) * 2019-12-20 2020-05-01 维沃移动通信有限公司 屏幕组件及电子设备

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