WO2021115308A1 - 显示屏模组与电子设备 - Google Patents

显示屏模组与电子设备 Download PDF

Info

Publication number
WO2021115308A1
WO2021115308A1 PCT/CN2020/134812 CN2020134812W WO2021115308A1 WO 2021115308 A1 WO2021115308 A1 WO 2021115308A1 CN 2020134812 W CN2020134812 W CN 2020134812W WO 2021115308 A1 WO2021115308 A1 WO 2021115308A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
display
display panel
light
circuit substrate
Prior art date
Application number
PCT/CN2020/134812
Other languages
English (en)
French (fr)
Inventor
李文军
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 WO2021115308A1 publication Critical patent/WO2021115308A1/zh

Links

Images

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
    • G02F1/1336—Illuminating devices
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Definitions

  • the invention relates to the field of electronic devices, in particular to a display screen module and electronic equipment.
  • OLED Organic Light-Emitting Diode
  • Non-OLED screens such as Liquid Crystal Display (LCD) screens, which are widely used.
  • the conventional structure is shown in Figure 1, including a plastic-iron integrated structure 1, a light bar 2, a reflective sheet 3, a light guide plate 4, and a diffusion sheet 5.
  • the light guide plate 4, the diffuser 5 and other components constitute the backlight structure.
  • the light used for fingerprint recognition cannot effectively penetrate the above-mentioned backlight structure, nor can it be effectively received, making it difficult to perform screen fingerprint recognition. Therefore, the existing LCD screen electronic devices usually place the fingerprint recognition structure in a space outside the screen, which results in a relatively low screen occupancy, and it is difficult to realize a full screen.
  • the embodiment of the present invention provides a display screen module and an electronic device to solve the problem that the existing LCD screen electronic device has a relatively low screen occupancy and is difficult to achieve full-screen display.
  • the present invention is implemented as follows:
  • the present invention provides a display screen module, comprising: a display panel and a light source assembly, the display panel has a fingerprint recognition area, the light source assembly is located on the side of the display panel away from the display surface, and the light source assembly includes:
  • a circuit substrate, the side of the circuit substrate facing the display panel is provided with a display light source and an infrared light source;
  • An encapsulation layer is located on the side of the circuit substrate facing the display panel and covers the display light source and the infrared light source;
  • An infrared receiving device the infrared receiving device is located on a side of the packaging layer close to the display panel;
  • the vertical projections of the infrared light source and the infrared receiving device on the display panel are both located in the fingerprint recognition area.
  • the number of the display light sources is at least three, and they are distributed on the circuit substrate in an array.
  • the number of the infrared light sources is at least three, and they are distributed on the circuit substrate in an array.
  • the display light source is a light-emitting chip, and the light-emitting chip is flip-chip mounted on the circuit substrate.
  • the light receiving device is embedded in the packaging layer, and the end surface of the light receiving device facing the display panel is flush with the end surface of the packaging layer facing the display panel.
  • the light source assembly further includes:
  • a diffusion sheet, the diffusion sheet is located on the side of the encapsulation layer facing the display panel;
  • the prism structure is located between the display panel and the diffusion sheet.
  • the backplane is a cavity with an open end
  • the light source assembly is installed in the backplane
  • the display panel is located outside the backplane.
  • a light-shielding tape is provided on the outer side wall of the back plate, and one end of the light-shielding tape extends toward the opening of the back plate, is located between the back plate and the prism structure, and is respectively connected to the back plate and the prism structure.
  • the back plate and the prism structure are bonded together.
  • the light source assembly further includes a flexible circuit board, which penetrates the backplane and is connected to the circuit substrate.
  • An embodiment of the present invention also provides an electronic device including the above-mentioned display screen module.
  • the light emitted by the display light source and the infrared light source can be directly directed to the display panel without reflection, so that the infrared light emitted by the infrared light source can effectively reach the fingerprint on the display panel, and the screen fingerprint recognition function is realized, thereby making the fingerprint
  • the identification structure can no longer occupy the space outside the display module, which helps to increase the screen-to-body ratio of LCD screen electronic devices, facilitates the realization of a full screen, and enhances the user experience.
  • Figure 1 is a schematic diagram of the conventional structure of an existing LCD screen
  • FIG. 2 is a schematic diagram of fingerprint recognition performed by a display screen module provided by an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the structure of a surface light source in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the packaging positions of a display light source and an infrared light source in an embodiment of the present invention
  • FIG. 5 is a schematic diagram of the location of the fingerprint recognition area in the embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the assembly structure of the display panel, the light source assembly and the back plate in the embodiment of the present invention
  • FIG. 7 is a schematic diagram of the bonding structure of the shading tape and the prism structure in the embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the bonding structure of the light-shielding tape and the outer side wall of the back plate in the embodiment of the present invention.
  • the display module provided by the embodiment of the present invention includes a display panel 100 and a light source assembly 200.
  • the display panel 100 has a fingerprint recognition area 1001.
  • the light source assembly 200 is located far away from the display panel 100.
  • One side of the display surface; the light source assembly 200 includes:
  • a circuit substrate 211 the side of the circuit substrate 211 facing the display panel 100 is provided with a display light source 212 and an infrared light source 213;
  • An encapsulation layer 214 which is located on the side of the circuit substrate 211 facing the display panel 100 and covers the display light source 212 and the infrared light source 213;
  • An infrared receiving device 215, the infrared receiving device 215 is located on the side of the encapsulation layer 214 close to the display panel 100;
  • the vertical projections of the infrared light source 212 and the infrared receiving device 215 on the display panel 100 are both located in the fingerprint recognition area 1001.
  • the display panel 100 may be a panel structure such as an LCD screen.
  • the display light source 212 and the infrared light source 213 can be mounted on the circuit substrate 211 through a series-parallel circuit, and packaged by an encapsulation layer 214; wherein, the encapsulation layer 214 can be a material such as fluorescent film, silica gel, etc., to ensure the display
  • the light emitted by the light source 212 and the infrared light source 213 can effectively penetrate.
  • the infrared receiving device 215 is installed in the encapsulation layer 214, can transmit light normally, does not affect the light emitting effect of the display light source 212 and the infrared light source 213, and can receive the infrared light 2131 reflected from the display panel 100.
  • the display module has a fingerprint recognition area 1001, and the user can place the fingerprint 400 of the finger on the fingerprint recognition area 1001, and the infrared light 2131 emitted by the infrared light source 213 After passing through the display panel 100 to reach the fingerprint 400 and be reflected, the unevenness of the fingerprint 400 will cause changes in the optical path and optical path of the infrared light 2131. After the reflected light reaches the infrared receiving device 215, the fingerprint can be realized based on the above-mentioned changes in the optical path and optical path. 400 recognition function.
  • the display module provided by the embodiment of the present invention has the display light source 212 and the infrared light source 213 arranged on a circuit substrate 211 facing the display panel 100. On the side, structures such as reflector, light guide plate and light bar are omitted.
  • the light emitted by the display light source 212 and the infrared light source 213 can be directly directed to the display panel 100 without reflection, so that the infrared light 2131 emitted by the infrared light source 213 can effectively reach the fingerprint 400 above the display panel 100 to realize the screen fingerprint recognition function, thereby making
  • the fingerprint recognition structure can no longer occupy the space outside the display module, which helps to increase the screen-to-body ratio of LCD screen electronic devices, facilitates full-screen display, and enhances the user experience.
  • the number of the display light sources 212 is at least three, and they are distributed on the circuit substrate 211 in an array.
  • the size and number of the display light source 212 may not be limited, but the smaller the display light source 212 and the denser the arrangement, the better the uniformity of the surface light source. Therefore, the number of the display light source 212 is set to multiple , And distribute them on the circuit substrate 211 in an array to improve the uniformity of the display light source.
  • the number of the infrared light sources 213 is at least three, and they are distributed on the circuit substrate 211 in an array.
  • Distributing a plurality of infrared light sources 213 in an array on the circuit substrate 211 can also provide uniformity of the infrared light sources 213, so as to improve the fingerprint recognition effect.
  • the infrared light source 213 is installed in the gap between the display light sources 212 , And distributed in a cross-shaped array.
  • the display light sources 212 are relatively dense, the area of a single infrared light source 213 is small.
  • infrared light sources 213 may be provided.
  • the size, number, and arrangement of the infrared light sources 213 may not be limited, so that fingerprint recognition can be achieved.
  • the above-mentioned fingerprint recognition area 1001 may be located in the lower half of the screen display area 1002 of the display screen module, and the specific position may be determined according to the overall design of the electronic device.
  • the display light source 212 is a light-emitting chip, and the light-emitting chip is flip-chip mounted on the circuit substrate.
  • the flip-chip structure of the light-emitting chip can improve the mounting efficiency and connection reliability of the light-emitting chip.
  • the infrared light source 213 may be an infrared chip.
  • the light-emitting chip and the infrared chip can be printed on the circuit substrate 211 through a series-parallel circuit, and then packaged into the entire light source through a chip on board (COB) packaging method to achieve the effect of a surface light source.
  • COB chip on board
  • the above-mentioned encapsulation layer 214 is used to encapsulate the light-emitting chip and the infrared chip. As shown in FIG. 3, the thickness of the encapsulation layer 214 is H3, preferably, H3 ⁇ 0.5mm; of course, the thickness of the encapsulation layer 214 may not be limited. , To be determined according to actual application needs.
  • the above-mentioned display light source 212 may also be a light source structure such as a lamp or a fluorescent tube, and the infrared light source 213 may also be a device capable of exciting infrared rays, such as an infrared lamp.
  • the light receiving device 215 is embedded in the encapsulation layer 214, and the end surface of the light receiving device 215 facing the display panel 100 is flush with the end surface of the encapsulation layer 214 facing the display panel 100 .
  • the light receiving device 215 can be embedded on the surface of the encapsulation layer 214, so that the light receiving device 215 is more sensitive to the infrared light 2131 reflected from the fingerprint 400, which improves the fingerprint recognition efficiency and provides a better user experience.
  • the light receiving device 215 may also be completely encapsulated in the encapsulation layer 214 to improve the fixing strength and better protect the light receiving device 215.
  • the light source assembly 200 further includes: a diffusion sheet 220, which is located on the side of the encapsulation layer 214 facing the display panel 100; and a prism structure 230, which is located on the display panel. Between the panel 100 and the diffusion sheet 220.
  • the diffusion sheet 220 and the prism structure 230 together form an optical film combination, which is mainly used to process the light emitted by the display light source 212.
  • the above-mentioned prism structure 230 may be a combination of the lower prism sheet 231 and the upper prism sheet 232, or may be a composite prism.
  • the display screen module further includes a backplane 300, the backplane 300 is a cavity with an opening at one end, the light source assembly 200 is installed in the backplane 300, and the display panel 100 is located on the The backplane 300 is outside.
  • the circuit substrate 211, the display light source 212, the infrared light source 213, the encapsulation layer 214, and the infrared receiving device 215 jointly constitute the surface light source structure 210.
  • the light source assembly 200 composed of the surface light source structure 210, the diffuser 220 and the prism structure 230 is installed in a cavity opened on the back plate 300, wherein the surface light source structure 210 can be fixed on the back with a double-sided tape 320.
  • the display panel 100 can be installed on the side of the backplane 300 with the opening to cover the opening; of course, in some feasible embodiments, the display panel 100 can also be partially installed in the cavity with tape Or the glue fills the gap between the display panel 100 and the inner wall of the cavity to protect the light source assembly 200.
  • the back plate 300 is made by bending an iron piece with a thickness of 0.1 mm, and there is no need to perform plastic-iron integral injection molding, which reduces the processing difficulty and manufacturing cost.
  • the thickness and material of the back plate 300 can be selected according to actual needs.
  • a light-shielding tape 310 is provided on the outer side wall of the back plate 300, and one end of the light-shielding tape 310 extends toward the opening of the back plate 300 and is located between the back plate 300 and the prism structure 230. Between them, they are bonded to the back plate 300 and the prism structure 230 respectively.
  • the light source assembly 200 and the back plate 300 can be used as a backlight module after being combined and fixed.
  • the optical film combination can be effectively fixed, and on the other hand, the air tightness in the cavity where the light source assembly 200 is installed can be ensured, which provides for the reliability test of the backlight module. Guaranteed.
  • the total thickness of the above-mentioned backlight module is H1; the light-shielding tape 310 has two parts that are bent to each other in the width extension direction, and the light-shielding tape 310 is bonded to the prism structure 230.
  • the width of the connected part is W1
  • the width of the other part bonded to the outer side wall of the back plate 300 is H2; wherein, on the four sides of the backlight module, the value of W1 is the same, optionally, 0.3mm ⁇ W1 ⁇ 0.5mm, 1/3H1 ⁇ H2 ⁇ H1 to ensure sufficient fixing strength between the backplane 300 and the light source assembly 200.
  • W1, H1, and H2 described above can also be determined according to actual needs.
  • the light source assembly further includes a flexible circuit board 216, which penetrates the backplane 300 and is connected to the circuit substrate 211.
  • the circuit substrate 211 may also be a flexible printed circuit (FPC), that is, the circuit substrate 211 and the flexible circuit board 216 are an integrated structure; the thickness of the circuit substrate 211 and the flexible circuit board 216 is not determined Limit, preferably 0.12mm thickness circuit board.
  • the circuit substrate 211 and the flexible circuit board 216 may also have a separate structure, and the flexible circuit board 216 is used to electrically connect the circuit substrate 211 with a structure located outside the backplane 300, such as a power source.
  • the embodiment of the present invention adopts a plurality of display light source arrays.
  • the infrared light source is printed in the gap of the display light source to emit infrared light.
  • the infrared receiving device is packaged above the infrared light source. ;
  • the display light source and the infrared light source are packaged as a surface light source, and then the surface light source is fixed on the back plate by double-sided tape, and the optical film material combination and shading tape are assembled to form a backlight module, which emits full light; through the infrared receiver, it is realized Fingerprint unlock function.
  • the display module provided by the embodiment of the present invention can pass the infrared light emitted by the infrared light source through the optical film combination and the display panel. After reaching the fingerprint, the unevenness of the fingerprint causes the change of the optical path and the optical path, and the reflected light reaches the infrared receiver. After the device is installed, the function of screen fingerprint recognition is realized; the fingerprint recognition structure is prevented from occupying the space outside the display module, and the screen-to-body ratio of the backlight module is enlarged.
  • An embodiment of the present invention also provides an electronic device including the above-mentioned display screen module.
  • electronic devices include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

Landscapes

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

Abstract

一种显示屏模组与电子设备，其中，显示屏模组包括：显示面板（100）和光源组件（200），显示面板（100）具有指纹识别区（1001），光源组件（200）位于显示面板（100）远离显示面的一侧，光源组件（200）包括：线路基板（211），线路基板（211）朝向显示面板（100）的一侧设有显示光源（212）和红外光源（213）；封装层（214），封装层（214）位于线路基板（211）朝向显示面板（100）的一侧，且覆盖显示光源（212）和红外光源（213）；红外接收装置（215），红外接收装置（215）位于封装层（214）靠近显示面板（100）的一侧；其中，红外光源（213）与红外接收装置（215）在显示面板（100）上的垂直投影均位于指纹识别区（1001）内。

Description

显示屏模组与电子设备
相关申请的交叉引用
本申请主张在2019年12月13日在中国提交的中国专利申请No.201911292974.0的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及电子器件领域，尤其涉及一种显示屏模组与电子设备。
背景技术
随着智能移动终端的发展，其外观与操作体验成为了影响消费者选择的重要因素。例如对于全面屏手机，凭借广阔的视野和舒适的手感日益受到消费者的欢迎。现有技术中，有机发光二极管(Organic Light-Emitting Diode，OLED)屏幕可实现屏幕指纹识别，即指纹识别不会占用屏幕以外的空间，进而容易实现手机全面屏化，但OLED屏幕较高的制造难度和成本影响了其普及使用。
非OLED屏幕，例如应用比较广泛的液晶显示(Liquid Crystal Display，LCD)屏，常规结构如图1所示，包括胶铁一体结构1、灯条2、反射片3、导光板4、扩散片5、下棱镜6、上棱镜7、遮光胶带8、柔性电路板及胶层21、LED灯22；其中，LED灯22发出的光线33在导光板4中全反射传导，难以穿透由反射片3、导光板4、扩散片5等部件构成的背光源结构。同样对于用于进行指纹识别的光线，也无法有效穿透上述背光源结构，亦不能被有效接收，进而难以进行屏幕指纹识别。因此，现有LCD屏电子设备通常将指纹识别结构置于屏幕以外的空间，进而导致屏占比较低，难以实现全面屏化。
发明内容
本发明实施例提供一种显示屏模组与电子设备，以解决现有的LCD屏电子设备屏占比较低，难以实现全面屏化的问题。
为了解决上述技术问题，本发明是这样实现的：
本发明提供了一种显示屏模组，包括：显示面板和光源组件，所述显示面板具有指纹识别区，所述光源组件位于所述显示面板远离显示面的一侧，所述光源组件包括：
线路基板，所述线路基板朝向所述显示面板的一侧设有显示光源和红外光源；
封装层，所述封装层位于所述线路基板朝向所述显示面板的一侧，且覆盖所述显示光源和所述红外光源；
红外接收装置，所述红外接收装置位于所述封装层靠近所述显示面板的一侧；
其中，所述红外光源与所述红外接收装置在所述显示面板上的垂直投影均位于所述指纹识别区内。
可选地，所述显示光源的数量至少为3个，且呈阵列分布在所述线路基板上。
可选地，所述红外光源的数量至少为3个，且呈阵列分布在所述线路基板上。
可选地，所述显示光源为发光芯片，所述发光芯片倒装在所述线路基板上。
可选地，所述光线接收装置嵌于所述封装层内，且所述光线接收装置朝向所述显示面板的端面与所述封装层朝向所述显示面板的端面平齐。
可选地，所述光源组件还包括：
扩散片，所述扩散片位于所述封装层朝向所述显示面板的一侧；
棱镜结构，所述棱镜结构位于所述显示面板与所述扩散片之间。
可选地，还包括背板，所述背板为一端开口的腔体，所述光源组件安装于所述背板内，所述显示面板位于所述背板外。
可选地，所述背板的外侧壁上设有遮光胶带，所述遮光胶带的一端向所述背板的开口处延伸，位于所述背板与所述棱镜结构之间，且分别与所述背板以及所述棱镜结构粘接。
可选地，所述光源组件还包括柔性电路板，所述柔性电路板贯穿所述背板，且与所述线路基板连接。
本发明实施例还提供了一种电子设备，包括上述的显示屏模组。
本发明实施例中，显示光源与红外光源发出的光线可不经反射直接射向显示面板，从而使得红外光源发出的红外光线能够有效到达显示面板上方的指纹处，实现屏幕指纹识别功能，进而使得指纹识别结构可不再占用显示屏模组以外的空间，有助于提高LCD屏电子设备屏占比，易于实现全面屏化，提升用户的使用体验。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明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发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为现有LCD屏常规结构示意图；
图2为本发明实施例提供的显示屏模组进行指纹识别原理图；
图3为本发明实施例中面光源结构示意图；
图4为本发明实施例中显示光源和红外光源封装位置示意图；
图5为本发明实施例中指纹识别区位置示意图；
图6为本发明实施例中显示面板、光源组件以及背板装配结构示意图；
图7为本发明实施例中遮光胶带与棱镜结构粘接结构示意图；
图8为本发明实施例中遮光胶带与背板外侧壁粘接结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通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，都属于本发明保护的范围。
除非另作定义，本发明中使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区 分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
如图2所示，本发明实施例提供的显示屏模组，包括：显示面板100和光源组件200，所述显示面板100具有指纹识别区1001，所述光源组件200位于所述显示面板100远离显示面的一侧；所述光源组件200包括：
线路基板211，所述线路基板211朝向所述显示面板100的一侧设有显示光源212和红外光源213；
封装层214，所述封装层214位于所述线路基板211朝向所述显示面板100的一侧，且覆盖所述显示光源212和所述红外光源213；
红外接收装置215，所述红外接收装置215位于所述封装层214靠近所述显示面板100的一侧；
其中，所述红外光源212与所述红外接收装置215在所述显示面板100上的垂直投影均位于所述指纹识别区1001内。
本实施例中，显示面板100可以是LCD屏等类型的面板(panel)结构。如图3所示，显示光源212与红外光源213可以通过串并联电路安装在线路基板211上，并通过封装层214进行封装；其中，封装层214可以是例如荧光膜、硅胶等材料，保证显示光源212与红外光源213发出的光线能够有效穿透。红外接收装置215安装在封装层214中，可正常透光，不影响显示光源212与红外光源213的发光效果，并能够接收从显示面板100处反射回的红外光线2131。
如图5所示，本发明实施例应用于屏幕指纹解锁时，显示屏模组具有指纹识别区1001，用户可将手指的指纹400放置在指纹识别区1001上，红外光源213发出的红外光线2131穿过显示面板100到达指纹400处并被反射，由于指纹400的凹凸不平会引起红外光线2131的光路和光程的变化，反射光到达红外接收装置215后，基于上述光路和光程的变化可实现指纹400识别的功能。
相较于现有技术中将LED灯设于导光板边缘的显示屏模组，本发明实施例提供的显示屏模组将显示光源212与红外光源213设于线路基板211朝向显示面板100的一侧，省略了反射片、导光板和灯条等结构。显示光源212与红外光源213发出的光线可不经反射直接射向显示面板100，从而使得红外光源213发出的红外光线2131能够有效到达显示面板100上方的指纹400处，实现屏幕指纹识别功能，进而使得指纹识别结构可不再占用显示屏模组以外的空间，有助于提高LCD屏电子设备屏占比，易于实现全面屏化，提升用户的使用体验。
可选地，所述显示光源212的数量至少为3个，且呈阵列分布在所述线路基板211上。
实际应用中，显示光源212的大小和数量可以不做限制，但显示光源212越小、布置的越密集表现出来的面光源均匀性就更好，因此，将显示光源212的数量设置为多个，并将其按阵列在线路基板211上进行分布，以提高显示光源的均匀性。
可选地，所述红外光源213的数量至少为3个，且呈阵列分布在所述线路基板211上。
将多个红外光源213呈阵列在线路基板211上进行分布，同样可提供红外光源213的均匀性，以便于提升指纹识别效果。如图4所示，由于显示光源212与红外光源213同时位于线路基板211上，为避免安装位置的干涉，当显示光源212按阵列分布时，红外光源213安装在显示光源212之间的间隙中，并呈十字形阵列分布。当显示光源212比较密集时，单个红外光源213的面积较小，为获得足够大小的指纹识别区1001，也可以设置更多的红外光源213。当然，在实际应用中，根据实际需要，红外光源213的大小、数量以及排列方式也可以不做限制，保证能够实现指纹识别即可。
如图5所示，上述的指纹识别区1001可以是位于显示屏模组的画面显示区1002的下半部，具***置可依据电子设备整机设计来确定。
可选地，所述显示光源212为发光芯片，所述发光芯片倒装在所述线路基板上。
发光芯片倒装结构可提高发光芯片的安装效率与连接可靠性，当然，实 际应用中，发光芯片正装或者倒装不做限制，根据实际需要进行选取。
进一步可选地，红外光源213可以是红外芯片。发光芯片与红外芯片可通过串并联电路打件在线路基板211上，再通过板上芯片(Chip On Board，COB)封装的方式封装成以整个光源，达到面光源的效果。上述的封装层214用于对发光芯片与红外芯片进行封装，如图3所示，封装层214的厚度为H3，优选地，H3≤0.5mm；当然，封装层214的厚度也可以不做限制，根据实际应用需要进行确定。
在一些可行的实施方式中，上述显示光源212还可以是例如灯泡(lamp)、荧光管等光源结构，红外光源213还可以是红外线灯等能够激发红外线的装置。
可选地，所述光线接收装置215嵌于所述封装层214内，且所述光线接收装置215朝向所述显示面板100的端面与所述封装层214朝向所述显示面板100的端面平齐。
本实施例中，可将光线接收装置215镶嵌在封装层214的表面，使得光线接收装置215对从指纹400处反射回的红外光线2131更加敏感，提高指纹识别效率，用户体验更佳。
在一可行的实施方式中，所述光线接收装置215也可以是完全封装在封装层214内部，以提升固定强度，更好地对光线接收装置215进行保护。
可选地，所述光源组件200还包括：扩散片220，所述扩散片220位于所述封装层214朝向所述显示面板100的一侧；棱镜结构230，所述棱镜结构230位于所述显示面板100与所述扩散片220之间。
扩散片220与棱镜结构230共同组成光学膜材组合，主要用于对显示光源212发出的光线进行处理。上述棱镜结构230可以是下棱镜片231与上棱镜片232的组合，也可以是复合棱镜。
可选地，所述显示屏模组还包括背板300，所述背板300为一端开口的腔体，所述光源组件200安装于所述背板300内，所述显示面板100位于所述背板300外。
本实施例中，线路基板211、显示光源212、红外光源213、封装层214以及红外接收装置215共同构成面光源结构210。如图6所示，面光源结构 210、扩散片220以及棱镜结构230构成的光源组件200安装在背板300上开设的腔体中，其中，面光源结构210可以用双面胶带320固定在背板300的内底面上。显示面板100则可以安装在背板300的具有开口的一侧并形成对开口的覆盖；当然，在一些可行的实施例中，显示面板100也可以部分安装至所述腔体中，并通过胶带或胶水填充显示面板100与腔体内壁之间的间隙，起到对光源组件200的保护作用。
在一具体应用例中，背板300为对厚度为0.1mm的铁件折弯制成，无需再进行胶铁一体注塑，降低了加工难度与制造成本。当然，背板300的厚度与材料可以根据实际需要进行选择。
可选地，所述背板300的外侧壁上设有遮光胶带310，所述遮光胶带310的一端向所述背板300的开口处延伸，位于所述背板300与所述棱镜结构230之间，且分别与所述背板300以及所述棱镜结构230粘接。
光源组件200与背板300组合固定后可以作为一背光源模组。通过将遮光胶带310侧边折弯，一方面可有效固定光学膜材组合，另一方面，可以保证装有光源组件200的腔体中的气密性，为背光源模组的信耐性测试提供保障。
如图7、图8所示，在一具体应用例中，上述背光源模组的总厚度为H1；遮光胶带310在宽度延伸方向上存在相互折弯的两部分，其中，与棱镜结构230粘接的一部分的宽度为W1，与背板300的外侧壁粘接的另一部分的宽度为H2；其中，在背光源模组的四边上，W1的值一致，可选地，0.3mm≤W1≤0.5mm，1/3H1≤H2≤H1，以保证背板300与光源组件200之间有足够的固定强度。当然，上述W1、H1以及H2的值及尺寸关系也可以根据实际需要进行确定。
可选地，如图7、图8所示，所述光源组件还包括柔性电路板216，所述柔性电路板216贯穿所述背板300，且与所述线路基板211连接。
在一优选实施例中，线路基板211也可以是柔性电路板(Flexible Printed Circuit，FPC)，即线路基板211与柔性电路板216为一体式结构；线路基板211与柔性电路板216的厚度不做限制，优选0.12mm厚度电路板。可选地，线路基板211与柔性电路板216也可以是分体式结构，柔性电路板 216用于将线路基板211与位于背板300外部的结构如电源进行电连接。
本发明实施例采用多个显示光源阵列排布，在需要指纹识别的区域，在显示光源的间隙打件红外光源，可发出红外光，在对应的指纹识别区，红外光源的上方封装红外接收装置；将显示光源与红外光源封装为面光源，再将面光源通过双面胶带固定在背板上，组装光学膜材组合和遮光胶带后形成背光源模组，全面发光；通过红外接收装置，实现指纹解锁功能。本发明实施例提供的显示屏模组可通过红外光源发出的红外光线，穿透光学膜材组合及显示面板，到达指纹后因为指纹的凹凸不平而引起光路和光程的变化，反射光到达红外接收装置后，实现屏幕指纹识别的功能；避免指纹识别结构占用显示屏模组以外的空间，扩大了背光源模组的屏占比。
本发明实施例还提供了一种电子设备，包括上述的显示屏模组。
在本发明实施例中，电子设备包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种显示屏模组，包括：显示面板和光源组件，所述显示面板具有指纹识别区，所述光源组件位于所述显示面板远离显示面的一侧，所述光源组件包括：
    线路基板，所述线路基板朝向所述显示面板的一侧设有显示光源和红外光源；
    封装层，所述封装层位于所述线路基板朝向所述显示面板的一侧，且覆盖所述显示光源和所述红外光源；
    红外接收装置，所述红外接收装置位于所述封装层靠近所述显示面板的一侧；
    其中，所述红外光源与所述红外接收装置在所述显示面板上的垂直投影均位于所述指纹识别区内。
  2. 根据权利要求1所述的显示屏模组，其中，所述显示光源的数量至少为3个，且呈阵列分布在所述线路基板上。
  3. 根据权利要求1所述的显示屏模组，其中，所述红外光源的数量至少为3个，且呈阵列分布在所述线路基板上。
  4. 根据权利要求1所述的显示屏模组，其中，所述显示光源为发光芯片，所述发光芯片倒装在所述线路基板上。
  5. 根据权利要求1所述的显示屏模组，其中，所述光线接收装置嵌于所述封装层内，且所述光线接收装置朝向所述显示面板的端面与所述封装层朝向所述显示面板的端面平齐。
  6. 根据权利要求1所述的显示屏模组，其中，所述光源组件还包括：
    扩散片，所述扩散片位于所述封装层朝向所述显示面板的一侧；
    棱镜结构，所述棱镜结构位于所述显示面板与所述扩散片之间。
  7. 根据权利要求6所述的显示屏模组，还包括背板，所述背板为一端开口的腔体，所述光源组件安装于所述背板内，所述显示面板位于所述背板外。
  8. 根据权利要求7所述的显示屏模组，其中，所述背板的外侧壁上设 有遮光胶带，所述遮光胶带的一端向所述背板的开口处延伸，位于所述背板与所述棱镜结构之间，且分别与所述背板以及所述棱镜结构粘接。
  9. 根据权利要求7所述的显示屏模组，其中，所述光源组件还包括柔性电路板，所述柔性电路板贯穿所述背板，且与所述线路基板连接。
  10. 一种电子设备，包括如权利要求1至9中任一项所述的显示屏模组。
PCT/CN2020/134812 2019-12-13 2020-12-09 显示屏模组与电子设备 WO2021115308A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911292974.0A CN110928049A (zh) 2019-12-13 2019-12-13 显示屏模组与电子设备
CN201911292974.0 2019-12-13

Publications (1)

Publication Number Publication Date
WO2021115308A1 true WO2021115308A1 (zh) 2021-06-17

Family

ID=69862733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/134812 WO2021115308A1 (zh) 2019-12-13 2020-12-09 显示屏模组与电子设备

Country Status (2)

Country Link
CN (1) CN110928049A (zh)
WO (1) WO2021115308A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110928049A (zh) * 2019-12-13 2020-03-27 维沃移动通信有限公司 显示屏模组与电子设备
CN113741075A (zh) * 2020-05-30 2021-12-03 荣耀终端有限公司 显示屏及电子设备
CN114764988A (zh) * 2021-01-11 2022-07-19 群创光电股份有限公司 背光模块及其适用的显示装置
CN113688767B (zh) * 2021-08-31 2022-10-21 厦门天马微电子有限公司 一种显示装置及指纹识别设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315412A (zh) * 2014-10-21 2015-01-28 深圳市华星光电技术有限公司 一种背光模组及显示装置
CN207268815U (zh) * 2017-09-13 2018-04-24 信利光电股份有限公司 一种显示装置
CN109031782A (zh) * 2018-07-31 2018-12-18 Oppo广东移动通信有限公司 显示屏组件、电子设备及电子设备的控制方法
KR20190018334A (ko) * 2017-08-14 2019-02-22 엘지디스플레이 주식회사 표시장치와 지문 센서 및 그 구동 방법
CN109784307A (zh) * 2019-01-31 2019-05-21 维沃移动通信有限公司 终端设备
CN110928049A (zh) * 2019-12-13 2020-03-27 维沃移动通信有限公司 显示屏模组与电子设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105528569B (zh) * 2015-07-03 2017-07-28 宸鸿科技(厦门)有限公司 触控装置
CN104933421A (zh) * 2015-07-06 2015-09-23 上海箩箕技术有限公司 光学式指纹成像***

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315412A (zh) * 2014-10-21 2015-01-28 深圳市华星光电技术有限公司 一种背光模组及显示装置
KR20190018334A (ko) * 2017-08-14 2019-02-22 엘지디스플레이 주식회사 표시장치와 지문 센서 및 그 구동 방법
CN207268815U (zh) * 2017-09-13 2018-04-24 信利光电股份有限公司 一种显示装置
CN109031782A (zh) * 2018-07-31 2018-12-18 Oppo广东移动通信有限公司 显示屏组件、电子设备及电子设备的控制方法
CN109784307A (zh) * 2019-01-31 2019-05-21 维沃移动通信有限公司 终端设备
CN110928049A (zh) * 2019-12-13 2020-03-27 维沃移动通信有限公司 显示屏模组与电子设备

Also Published As

Publication number Publication date
CN110928049A (zh) 2020-03-27

Similar Documents

Publication Publication Date Title
WO2021115308A1 (zh) 显示屏模组与电子设备
CN208609032U (zh) 显示屏组件及电子设备
US11600799B2 (en) Display device
KR102570864B1 (ko) 전자 장치
CN111007951A (zh) 包括输入检测单元的显示装置
CN107958237A (zh) 一种指纹识别模组及电子设备
KR20200048205A (ko) 플렉서블 회로 필름 및 이를 포함하는 전자 기기
US20210366996A1 (en) Display panel and electronic device
CN107422526A (zh) 背光模组和电子设备
KR20200129646A (ko) 방열 시트 및 벤딩 고정 부재를 구비한 표시 장치
TWI394449B (zh) 顯示裝置
CN108150896B (zh) 电子装置及其背光模组
CN113242334B (zh) 曲面屏组件及移动终端
CN108302386A (zh) 电子装置及其显示组件、背光模组
CN108205170A (zh) 背光模组、显示装置及电子设备
TWI646378B (zh) 具電磁輻射功能的顯示面板及其天線單元
CN107608122B (zh) 显示屏、功能组件及移动终端
CN208076751U (zh) 背光模组、显示装置及电子设备
WO2021012209A1 (zh) 终端设备
CN108153059B (zh) 背光模组、显示装置及电子设备
WO2021104350A1 (zh) 背光模组及电子设备
JP7141483B2 (ja) 支持フレーム、バックライトモジュール及び組立方法、ディスプレイスクリーン並びに電子機器
WO2021244436A1 (zh) 背光结构及显示装置
US11294116B2 (en) Display device based on diffusion film and electronic device
CN114141164A (zh) 电子设备

Legal Events

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

Ref document number: 20899284

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20899284

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20899284

Country of ref document: EP

Kind code of ref document: A1

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

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 23/02/2023)

122 Ep: pct application non-entry in european phase

Ref document number: 20899284

Country of ref document: EP

Kind code of ref document: A1