WO2021163843A1 - 显示屏组件及电子设备 - Google Patents
显示屏组件及电子设备 Download PDFInfo
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- WO2021163843A1 WO2021163843A1 PCT/CN2020/075533 CN2020075533W WO2021163843A1 WO 2021163843 A1 WO2021163843 A1 WO 2021163843A1 CN 2020075533 W CN2020075533 W CN 2020075533W WO 2021163843 A1 WO2021163843 A1 WO 2021163843A1
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- light
- display screen
- infrared
- infrared light
- screen assembly
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
Definitions
- This application relates to the field of biometric identification, in particular to a display screen assembly and electronic equipment.
- the infrared light emitting module and the infrared light receiving module are generally arranged under the display screen. This makes the biometric identification module not only occupy a large overall space, but also cannot achieve full-screen display, which cannot meet the requirements of current users for full-screen display.
- the present application provides a display screen assembly, which has a compact structure, a small volume, and can realize full-screen display.
- this application also provides an electronic device.
- the present application provides a display screen assembly, which includes a backlight module, an infrared light source, a display screen, and an infrared receiver;
- the backlight module includes a frame, the frame is provided with an accommodating cavity and a light output communicating with the accommodating cavity The light outlet is aimed at the display screen, the backlight module is used to provide visible light for the display screen;
- the infrared light source is arranged in the accommodating cavity for emitting infrared light;
- the infrared The receiver is arranged in the display screen for receiving infrared light reflected from the biological body on the side of the display screen away from the backlight module.
- the infrared light source is arranged in the backlight module and the infrared receiver is arranged in the display screen.
- the infrared receiver is arranged in the display screen.
- the display screen includes a first polarizer and a second polarizer that are spaced and stacked, and the infrared receiver is arranged between the first polarizer and the second polarizer.
- the infrared receiver is arranged between the first polarizer and the second polarizer, and there is no need to separately arrange an independent infrared light receiving module on the lower side of the display screen, so that the display screen assembly has a more compact structure and a smaller volume.
- the display screen further includes a thin film transistor array substrate arranged between the first polarizer and the first polarizer;
- the thin film transistor array substrate includes a substrate and a plurality of arrays are arranged on the substrate
- the infrared receiver includes a plurality of receiving units, the plurality of receiving units are arranged in an array; the receiving unit is arranged on the same side of the thin film transistor, and the receiving unit is arranged in the array In the gap of the thin film transistor; or the plurality of receiving units are arranged on the side of the substrate away from the thin film transistor, and are arranged corresponding to the gap of the thin film transistors arranged in the array.
- the infrared receiver in the display screen does not require a separate infrared light receiving module on the lower side of the display screen, which reduces the volume of the entire display screen assembly.
- multiple receiving units of the infrared receiver are arranged in the array. In the gaps of the arranged thin film transistors, the thickness of the display screen will not increase.
- the display screen further includes a color filter substrate arranged between the first polarizer and the first polarizer; the infrared receiver includes a plurality of receiving units, and the plurality of receiving units are arranged in an array It is arranged on the color filter substrate. Arranging the infrared receiver in the display screen does not require a separate infrared light receiving module on the lower side of the display screen, which helps to reduce the volume of the entire display screen assembly.
- the backlight module further includes a backlight source and a light guide plate;
- the backlight source is arranged in the accommodating cavity for providing visible light;
- the light guide plate is arranged in the accommodating cavity and includes a first A light-incident surface and a light-emitting surface connected to the first light-incident surface, the first light-incident surface is arranged adjacent to the infrared light source and the backlight source, the infrared light emitted by the infrared light source and the backlight source emit
- the visible light enters the light guide plate from the first light-incident surface, and exits from the light-emitting surface, and the light-emitting surface is disposed adjacent to the display screen.
- Arranging the light guide plate in the accommodating cavity can change the direction of infrared light and visible light emitted from the infrared light source and the backlight source, and make the infrared light and visible light emerge from the light emitting surface in the form of a surface, so that the backlight module is emitted
- the infrared light and visible light are more uniform.
- multiple infrared light sources and multiple backlight sources there are multiple infrared light sources and multiple backlight sources, and multiple infrared light sources and multiple backlight sources are alternately arranged on the inner wall of the frame and adjacent to the first light incident surface.
- Multiple infrared light sources and backlight sources are set, and at the same time, the infrared light sources and backlight sources are alternately arranged, so that the emitted infrared light and visible light can be more uniform.
- the light guide plate further includes a second light-incident surface; the second light-incident surface is arranged opposite to the first light-incident surface and is connected to the light-emitting surface; the infrared light source and the backlight source The number is multiple, a part of the infrared light source and the backlight source are alternately arranged adjacent to the first light incident surface, and the other part of the infrared light source and the backlight source are alternately arranged adjacent to the second entrance surface.
- the location of the glossy surface Two light-incident surfaces and two sets of infrared light sources and backlight sources are provided, so that the emitted infrared light and visible light can be more uniform.
- the backlight module further includes a reflective sheet, the reflective sheet is stacked on the side of the light guide plate away from the light exit surface, and the reflective sheet is used to combine the infrared light emitted from the light guide plate and Visible light is reflected into the light guide plate.
- the reflective sheet can reflect visible light and infrared light, so that the utilization rate of visible light and infrared light can be improved.
- the backlight module further includes a light-shielding glue; the frame where the light-shielding glue is arranged is adjacent to the light outlet, and the light-shielding glue is arranged around the light outlet to prevent the leakage of infrared light and visible light.
- Shading glue is arranged around the light outlet, which can effectively prevent the leakage of infrared light and visible light, and improve the utilization rate of infrared light and visible light.
- the backlight module further includes a diffusion sheet; the diffusion sheet is arranged on the light exit surface of the light guide plate, and the diffusion sheet can effectively diffuse infrared light and visible light, so that infrared light and visible light are more uniformly emitted from the diffusion piece.
- the backlight module further includes a brightness enhancement sheet; the brightness enhancement sheet is disposed on the surface of the diffusion sheet away from the light guide plate, and is used to change the direction of infrared light and visible light so that infrared light and visible light are irradiated to the On the display. This can improve the utilization of infrared light and visible light.
- the present application also provides an electronic device, which includes a device main body and the above-mentioned display screen assembly; the display screen assembly is arranged on the device main body.
- the infrared light source of the display screen assembly of the present application is arranged in the backlight module, and the infrared receiver is integrated in the display screen, so that the display assembly of the present application has a compact structure, a small footprint, and can also realize full-screen display.
- FIG. 1 is a schematic structural diagram of a display screen assembly according to an embodiment of the present application.
- Fig. 2 is a schematic structural diagram of a display screen assembly according to another embodiment of the present application.
- Fig. 3 is a schematic structural diagram of a display screen assembly according to another embodiment of the present application.
- Fig. 4 is a schematic diagram of an arrangement of a backlight source and an infrared light source according to an embodiment of the present application.
- Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
- an embodiment of the present application provides a display screen assembly 100 for biometric identification, which includes an infrared light source 10, a backlight module 30, a display screen 50 and an infrared receiver 70.
- the infrared light source 10 is arranged in the backlight module 30 for emitting infrared light.
- the backlight module 30 is used to provide visible light for the display screen 50, and the visible light can penetrate the display screen 50.
- the infrared receiver 70 is arranged in the display screen 50 to receive the infrared light reflected from the biological body on the side of the display screen 50 away from the backlight module 30, and according to the reflected infrared light on the biological characteristics of the biological body Identify it.
- biological body in this application refers to a living animal body, specifically, a human body.
- biological signs in this application includes but is not limited to hand fingerprints, foot fingerprints, sole prints, palm prints, lip prints, and the like.
- the infrared light source 10 of the display screen assembly 100 of the present application emits infrared light, and the infrared light is emitted from the backlight module 30, passes through the display screen 50, and touches the biological objects on the display screen 50, such as fingers, toes, palms, soles of feet, lips, etc. It is reflected back, and finally imaged in the infrared receiver 70 to identify the biological characteristics.
- the infrared light source 10 of the display screen assembly 100 of the present application is arranged in the backlight module 30, and the infrared receiver 70 is arranged in the display screen 50, and there is no need to separately install independent infrared emission modules and infrared light receiving modules on the lower side of the display screen.
- the display screen assembly 100 of the present application has a compact structure, a small footprint, and can also achieve full-screen display.
- the backlight module 30 includes a frame 31, a backlight source 33 and a light guide plate 35.
- the frame 31 is provided with an accommodating cavity 311 and a light outlet 313 communicating with the accommodating cavity 311, and the frame 31 is used for supporting the backlight source 33 and the light guide plate 35.
- the infrared light source 10 and the backlight source 33 are both arranged in the accommodating cavity 311. Specifically, the infrared light source 10 and the backlight source 33 are both arranged on the inner wall of the frame 31.
- the backlight 33 is used to provide visible light.
- the light guide plate 35 is disposed in the accommodating cavity 311, and includes a first light-incident surface 351 and a light-emitting surface 353 connected to the first light-incident surface 351, and the first light-incident surface 351 is adjacent to the infrared light source 10 and the backlight source 33 are arranged, the infrared light emitted by the infrared light source 10 and the visible light emitted by the backlight source 33 enter the light guide plate 35 from the first light incident surface 351, and from the light exit surface 353 emits light, and the light emitting surface 353 is disposed adjacent to the display screen 50.
- the light guide plate 35 is used to change the direction of infrared light and visible light emitted from the infrared light source 10 and the backlight source 33, and make the infrared light and visible light emerge from the light-emitting surface 353 in the form of a surface, so that the infrared light and the visible light of the backlight module 30 are emitted. Visible light is more uniform.
- the infrared light source 10 may be, but not limited to, an infrared light chip, and the backlight source 33 may be a visible light chip, specifically, but not limited to a light emitting diode (LED).
- LED light emitting diode
- the infrared light source 10 and the backlight source 33 may be alternately arranged on the same flexible printed circuit (FPC); they may also be arranged on different flexible circuit boards, and then arranged alternately, and then arranged with infrared
- the flexible circuit boards of the light source 10 and the backlight source 33 are arranged on the inner wall of the frame 31. This can make the emitted infrared light and visible light more uniform.
- the infrared light source 10 and the backlight source 33 are first arranged on the flexible circuit board, and then the inner wall of the frame 31 is fixed by the plastic frame 34.
- the light guide plate 35 further includes a second light incident surface 355.
- the second light-incident surface 355 is arranged opposite to the first light-incident surface 351 and is connected to the light-emitting surface 353; the number of the infrared light source 10 and the backlight source 33 are both multiple, and some of them are
- the infrared light source 10 and the backlight source 33 are alternately arranged adjacent to the first light incident surface 351, and another part of the infrared light source 10 and the backlight source 33 are alternately arranged adjacent to the second light incident surface 355 s position. This can make the emitted infrared light and visible light more uniform.
- the backlight module 30 further includes a reflective sheet 32, the reflective sheet 32 is stacked on the side of the light guide plate 35 away from the light emitting surface 353, the reflective sheet 32 It is used to reflect the infrared light and visible light emitted from the light guide plate 35 into the light guide plate 35.
- the reflective sheet 32 can reflect visible light and infrared light, and improve the utilization rate of visible light and infrared light.
- the backlight module 30 further includes a diffusion sheet 36.
- the diffusion sheet 36 is arranged on the light exit surface 353 of the light guide plate 35 and is used to diffuse infrared light and visible light so as to emit the diffusion sheet 36 more uniformly.
- the backlight module 30 further includes a brightness enhancement sheet 37.
- the brightness enhancement sheet 37 is arranged on the surface of the diffusion sheet 36 away from the light guide plate 35 and is used to change the direction of infrared light and visible light so that the infrared light and visible light are irradiated on the display screen 50.
- the backlight module 30 may include, but is not limited to, one brightness enhancement sheet 37, two brightness enhancement sheets 37, three brightness enhancement sheets 37, or four brightness enhancement sheets 37 stacked in sequence, which are not specifically limited in this application.
- the backlight module 30 includes two sheets of light-enhancing sheets 37 stacked in layers.
- the backlight module 30 further includes a light-shielding glue 38.
- the light-shielding glue 38 is arranged on the frame 31 adjacent to the light-exit opening, and the light-shielding glue 38 is arranged around the light-exit opening to shield the infrared light source 10 and the backlight source 33 to prevent the leakage of infrared light and visible light.
- the display screen 50 is a thin film transistor (TFT)
- the display screen 50 includes a first polarizer 51, a thin film transistor array substrate 52, a liquid crystal layer 53, a color filter 54 and a second polarizer 55 that are stacked in sequence.
- the first polarizer 51 is disposed adjacent to the backlight module 30.
- the gratings of the first polarizer 51 and the second polarizer 55 are arranged at 90°, so that the infrared light and visible light passing through the first polarizer are rotated by 90° when passing through the second polarizer 55.
- TFT Thin Film Transistor
- TFT Thin Film Transistor
- Each liquid crystal pixel on the TFT display is driven by a thin film transistor integrated behind the pixel, so the TFT display is also a type of active matrix liquid crystal display device.
- TFT type displays have the advantages of high responsiveness, high brightness, and high contrast.
- the color film substrate 54 is an optical filter that expresses colors. It can precisely select the light waves in a small range to pass, and reflect other undesired wave bands.
- the color film substrate is usually installed in front of the light source, so that the human eye can receive the saturated light of a certain color.
- Color film substrate display principle The three primary colors of R, G, and B of Color Filter are arranged in a certain pattern, and correspond to the TFT sub-pixels on the TFT substrate one-to-one. The white light emitted by the backlight becomes the corresponding R after passing through the filter film. , G, B color light. Adjust the voltage value added to each sub-pixel through the TFT array task, thereby changing the transmission intensity of each color light, and mixing RGB color lights of different intensities to achieve color display.
- the infrared receiver 70 includes a plurality of receiving units 71, and the plurality of receiving units 71 are made of silicon material and arranged in an array.
- the thin film transistor array substrate 52 includes a substrate 521 and a plurality of thin film transistors 523 arrayed on the substrate 521.
- the receiving unit 71 and the thin film transistor 523 are arranged on the same side, and the receiving unit 71 is arranged in the gap between the thin film transistors 523 arranged in an array.
- the plurality of receiving units 71 are disposed on the side of the substrate 521 facing away from the thin film transistors 523, and are disposed corresponding to the gaps of the thin film transistors 523 arranged in the array.
- the infrared receiver 70 in the display screen 50 does not require a separate infrared light receiving module on the lower side of the display screen 50. This reduces the size of the entire display screen assembly 100. At the same time, multiple infrared receivers 70 are installed.
- the receiving unit 71 is arranged in the gap between the thin film transistors 523 arranged in the array without increasing the thickness of the display screen 50.
- a plurality of receiving units 71 are arranged in an array on the color filter substrate 54. This is beneficial to reduce the volume of the entire display screen assembly 100.
- the multiple receiving units 71 may be arranged on the surface of the color filter substrate 54 adjacent to the liquid crystal layer 53, or may be arranged on the surface of the color filter substrate 54 adjacent to the second polarizer 55.
- the multiple receiving units 71 may be arranged on the surface of the color filter substrate 54 or embedded in the color filter substrate 54.
- the display screen assembly 100 of the present application further includes a touch sensing layer 90.
- the touch sensing layer 90 is disposed on the side of the display screen 50 away from the backlight module 30 and used to sense the movement information of the organism on the surface of the touch sensing layer 90.
- the touch sensing layer 90 is adhered to the side of the display screen 50 away from the backlight module 30 through an optically clear adhesive (OCA) 91. More specifically, the touch sensing layer 90 is adhered to the second polarizer 55 by OCA glue.
- OCA optically clear adhesive
- the present application also provides an electronic device 200, which includes a device main body 210 and the display screen assembly 100 of the embodiment of the present application.
- the display screen assembly 100 is provided on the device main body 210.
- the device main body 210 of this application includes, but is not limited to, fingerprint identification device main body, computer main body, laptop main body, tablet main body, mobile phone main body, smart bracelet main body, smart watch main body, smart glasses main body, electronic book reader main body, portable multimedia Player body, smart lock body, etc.
- the electronic equipment 100 of this application includes but is not limited to fingerprint identification devices, computers, laptops, tablets, mobile phones, smart bracelets, smart watches, smart glasses, e-book readers, portable multimedia players, smart locks, etc. with displays The device of the screen component.
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Abstract
本申请提供一种显示屏组件及电子设备，本申请的显示组件包括红外光源、背光模组、显示屏及红外接收器；所述背光模组包括框架，所述框架设有容置腔及连通所述容置腔的出光口；所述出光口对准所述显示屏，所述背光模组用于为所述显示屏提供可见光；所述红外光源设置在所述容置腔内，用于发射红外光；所述红外接收器设置在所述显示屏内，用于接收从所述显示屏背离所述背光模组的一侧的生物体反射回来的红外光。本申请的显示屏组件结构紧凑，占用空间小，还可实现全屏显示。
Description
本申请涉及生物体识别领域，具体涉及一种显示屏组件及电子设备。
现有的红外光指纹识别模组，多数为屏下指纹识别，其红外光发射模块和红外光接收模块(指纹识别模块)一般都设置在显示屏的下方。这样使得生物特征识别模组不仅整体占用空间大，而且无法实现全屏显示，无法满足现今用户对于全屏显示的要求。
申请内容
有鉴于此，本本申请提供一种显示屏组件，其结构紧凑、体积小、可实现全屏显示。
此外，本申请还提供一种电子设备。
本申请提供一种显示屏组件，其包括背光模组、红外光源、显示屏及红外接收器；所述背光模组包括框架，所述框架设有容置腔及连通所述容置腔的出光口；所述出光口对准所述显示屏，所述背光模组用于为所述显示屏提供可见光；所述红外光源设置在所述容置腔内，用于发射红外光；所述红外接收器设置在所述显示屏内，用于接收从所述显示屏背离所述背光模组的一侧的生物体反射回来的红外光。本申请的显示屏组件，通过将红外光源设置在背光模组中，并且将红外接收器设置在显示屏中，不需要单独在显示屏下侧设置独立的红外发射模块和红外光接收模块，如此可使得结构紧凑，占用空间小，还可实现全屏显示。
其中，所述显示屏包括间隔且层叠设置的第一偏光片和第二偏光片，所述红外接收器设置在所述第一偏光片和第二偏光片之间。将红外接收器设置在所述第一偏光片和第二偏光片之间，不需要单独在显示屏下侧设置独立的红外光接收模块，使得显示屏组件结构更紧凑，体积更小。
其中，所述显示屏还包括设置在所述第一偏光片和所述第一偏光片之间的薄膜晶体管阵列基板；所述薄膜晶体管阵列基板包括基板和多个阵列排布在所述基板上的薄膜晶体管；所述红外接收器包括多个接收单元，多个接收单元呈阵列排布；所述接收单元与所述薄膜晶体管同侧设置，且所述接收单元设置在阵列排布的所述薄膜晶体管的间隙中；或者所述多个接收单元设置在所述基板背离所述薄膜晶体管的一面，且对应所述阵列排布的薄膜晶体管的间隙设置。将红外接收器设置在显示屏中，不需要单独在显示屏下侧设置独立的红外光接收模块，这样缩小了整个显示屏组件的体积，同时，将红外接收器的多个接收单元设置在阵列排布的薄膜晶体管的间隙中，又不会增加所述显示屏的厚度。
其中，所述显示屏还包括设置在所述第一偏光片和所述第一偏光片之间的彩膜基板；所述红外接收器包括多个接收单元，所述多个接收单元阵列排布设置在所述彩膜基板上。将红外接收器设置在显示屏中，不需要单独在显示屏下侧设置独立的红外光接收模块，这样有利于缩小了整个显示屏组件的体积。
其中，所述背光模组还包括背光源及导光板；所述背光源设于所述容置腔内，用于提供可见光；所述导光板设于所述容置腔内，且包括第一入光面及与所述第一入光面相连的出光面，所述第一入光面邻近所述红外光源及所述背光源设置，所述红外光源发出的红外光及所述背光源发出的可见光自所述第一入光面进入到所述导光板，且自所述出光面出射，所述出光面邻近所 述显示屏设置。在所述容置腔内设置所述导光板可以改变从红外光源和背光源发射出来的红外光和可见光的方向，并使红外光和可见光以面的形式从出光面出射，使得射出背光模组的红外光和可见光更加均匀。
其中，所述红外光源和所述背光源的数量均为多个，多个所述红外光源和多个所述背光源交替设置在所述框架的内壁，且邻近所述第一入光面。设置多个红外光源和背光源，同时，将红外光源及背光源交替设置，这样可以使出射的红外光和可见光更加均匀。
其中，所述导光板还包括第二入光面；所述第二入光面与所述第一入光面相背设置，且与所述出光面相连；所述红外光源和所述背光源的数量均为多个，一部分所述红外光源和所述背光源交替设置在邻近所述第一入光面的位置，另一部分所述红外光源和所述背光源交替设置在邻近所述第二入光面的位置。设置两个入光面及两组红外光源和背光源，这样可以使出射的红外光和可见光更加均匀。
其中，所述背光模组还包括反射片，所述反射片叠设于所述导光板背离所述出光面的一侧，所述反射片用于将自所述导光板射出出射的红外光和可见光反射入所述导光板内。所述反射片可以对可见光和红外光进行反射，这样可以提高可见光和红外光的利用率。
其中，所述背光模组还包括遮光胶；所述遮光胶设置的所述框架上邻近所述出光口，所述遮光胶环绕所述出光口设置，以防止红外光和可见光泄漏。在出光口的四周设置遮光胶，这样可以有效防止红外光和可见光泄露，提高红外光和可见光的利用率。
其中，所述背光模组还包括扩散片；所述扩散片设置在所述导光板的出光面，扩散片可以有效的将红外光和可见光进行扩散，使红外光和可见光更加均匀射出所述扩散片。
其中，所述背光模组还包括增光片；所述增光片设置在所述扩散片背离所述导光板的表面上，用于改变红外光和可见光的方向，使红外光和可见光照射到所述显示屏上。这样可以提高红外光和可见光的利用率。
本申请还提供一种电子设备，其包括设备主体及上述的显示屏组件；所述显示屏组件设置在所述设备主体上。
本申请的显示屏组件的红外光源设置在背光模组中，红外接收器集成在显示屏内，由此，使得本申请的显示屏组件具结构紧凑，占用空间小，还可实现全屏显示。
为更清楚地阐述本申请的构造特征和功效，下面结合附图与具体实施例来对其进行详细说明。
图1是本申请一实施例的显示屏组件的结构示意图。
图2是本申请又一实施例的显示屏组件的结构示意图。
图3是本申请又一实施例的显示屏组件的结构示意图。
图4是本申请一实施例的背光源和红外光源的排列示意图。
图5是本申请一实施例的电子设备的结构示意图。
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，所描述的实施例是本申请的一部分实施例，而不是全部实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本申请保护的范围。
请参见图1，本申请实施例提供一种显示屏组件100，用于生物特征识别， 其包括红外光源10、背光模组30、显示屏50及红外接收器70。红外光源10设置在背光模组30中，用于发射红外光。背光模组30用于为显示屏50提供可见光，该可见光可穿透显示屏50。红外接收器70设置在显示屏50内，用于接收从显示屏50背离背光模组30的一侧的生物体反射回来的红外光，并根据反射回来的红外光对所述生物体的生物特征进行识别。本申请术语“生物体”指具有生命的动物体，具体地，可以为人体。
本申请的术语“生物体征”包括但不限于为手指纹、脚指纹、脚掌纹、手掌纹、唇纹等。
本申请的显示屏组件100的红外光源10发出红外光，红外光射出背光模组30，穿过显示屏50，接触到显示屏50上的生物体，例如手指、脚趾、手掌、脚掌、嘴唇等后反射回来，最后在红外接收器70中进行成像，对生物特征进行识别。
本申请的显示屏组件100的红外光源10设置在背光模组30中，红外接收器70设置在显示屏50内，不需要单独在显示屏下侧设置独立的红外发射模块和红外光接收模块，由此，使得本申请的显示屏组件100结构紧凑，占用空间小，还可实现全屏显示。
请参见图2，在一些实施例中，背光模组30包括框架31、背光源33及导光板35。框架31设有容置腔311及连通容置腔311的出光口313，框架31用于支撑背光源33及导光板35。红外光源10及背光源33均设于容置腔311内，具体地，红外光源10及背光源33均设于框架31的内壁上。背光源33用于提供可见光。导光板35设于所述容置腔311内，且包括第一入光面351及与所述第一入光面351相连的出光面353，所述第一入光面351邻近所述红外光源10及所述背光源33设置，所述红外光源10发出的红外光及所述背光源33发出的可见光自所述第一入光面351进入到所述导光板35，且自所述出光面353出射，所述出光面 353邻近所述显示屏50设置。导光板35用于改变从红外光源10和背光源33发射出来的红外光和可见光的方向，并使红外光和可见光以面的形式从出光面353出射，使得射出背光模组30的红外光和可见光更加均匀。
在一些实施例中，红外光源10可以为但不限于为红外光晶片，背光源33为可见光晶片，具体地可以为但不限于为发光二极管(Light Emitting Diode，LED)。
请参见图2和图4，在一些实施例中，红外光源10和背光源33的数量均为多个，多个红外光源10和多个背光源33交替设置在邻近第一入光面351的位置。在具体实施例中，红外光源10和背光源33可以交替设置在同一柔性电路板(Flexible Printed Circuit，FPC)上；也可以设置在不同的柔性电路板上，然后交替排列，再将设有红外光源10和背光源33的柔性电路板设置在框架31的内壁上。这样可以使出射的红外光和可见光更加均匀。
请参见图2和图3，在一些实施例中，红外光源10和背光源33先设置在柔性电路板上，再通过胶框34固定框架31内壁上。
请参见图3，在另一些实施例中，导光板35还包括第二入光面355。所述第二入光面355与所述第一入光面351相背设置，且与所述出光面353相连；所述红外光源10和所述背光源33的数量均为多个，一部分所述红外光源10和所述背光源33交替设置在邻近所述第一入光面351的位置，另一部分所述红外光源10和所述背光源33交替设置在邻近所述第二入光面355的位置。这样可以使出射的红外光和可见光更加均匀。
请参见图2和图3，在一些实施例中，背光模组30还包括反射片32，反射片32叠设于所述导光板35背离所述出光面353的一侧，所述反射片32用于将自所述导光板35出射的红外光和可见光反射入所述导光板35内。反射片32可以对可见光和红外光进行反射，提高可见光和红外光的利用率。
在一些实施例中，背光模组30还包括扩散片36。扩散片36设置在导光板35的出光面353上，用于将红外光和可见光进行扩散，使其更加均匀射出所述扩散片36。
在一些实施例中，背光模组30还包括增光片37。增光片37设置在扩散片36背离导光板35的表面上，用于改变红外光和可见光的方向，使红外光和可见光照射到显示屏50上。具体地，背光模组30可以但不限于包括一片增光片37，依次层叠的两片增光片37、三片增光片37或四片增光片37等，本申请对此不作具体限定。在本申请图2和图3的实施例中，背光模组30包括两片层叠设置的增光片37。
在一些实施例中，背光模组30还包括遮光胶38。遮光胶38设置的框架31上邻近出光口，遮光胶38环绕出光口设置，用于遮挡红外光源10和背光源33，以防止红外光和可见光泄漏。
在一些实施例中，显示屏50为薄膜晶体管(Thin Film Transistor，TFT)
液晶显示屏。具体地，显示屏50包括依次层叠设置的第一偏光片51、薄膜晶体管阵列基板52、液晶层53、彩膜基板(Color Filter)54和第二偏光片55。第一偏光片51邻近背光模组30设置。第一偏光片51和第二偏光片55的光栅呈90°设置，以使穿过第一偏光片的红外光和可见光，在穿出第二偏光片55时旋转90°。
TFT(Thin Film Transistor)是薄膜晶体管的缩写。TFT式显示屏上的每个液晶像素点都是由集成在像素点后面的薄膜晶体管来驱动，因此TFT式显示屏也是一类有源矩阵液晶显示设备。TFT式显示器具有高响应度、高亮度、高对比度等优点。
彩膜基板54是一种表现颜色的光学滤光片，它可以精确选择欲通过的小范围波段光波，而反射掉其他不希望通过的波段。彩膜基板通常安装在光源 的前方，使人眼可以接收到饱和的某个颜色光线。彩膜基板显示原理：Color Filter的R、G、B三基色按一定图案排列，并与TFT基板上的TFT子像素一一对应，背光源发出的白光、经滤光膜后变成相应的R、G、B色光。通过TFT阵列课题调节加在各个子像素的电压值，从而改变各色光的透射强度，不同强度的RGB色光混合在一起，就实现了彩色显示。
请参见图2，在一些实施例中，红外接收器70包括多个接收单元71，多个接收单元71由硅材料制得，且呈阵列排布。薄膜晶体管阵列基板52包括基板521和多个阵列排布在所述基板521上的薄膜晶体管523。所述接收单元71与薄膜晶体管523同侧设置，且接收单元71设置在阵列排布的薄膜晶体管523的间隙中。在一些实施例中，所述多个接收单元71设置在所述基板521背离薄膜晶体管523的一面，且对应所述阵列排布的薄膜晶体管523的间隙设置。
将红外接收器70设置在显示屏50中，不需要单独在显示屏50下侧设置独立的红外光接收模块，这样缩小了整个显示屏组件100的体积，同时，将红外接收器70的多个接收单元71设置在阵列排布的薄膜晶体管523的间隙中，又不会增加所述显示屏50的厚度。
请参见图3，在一些实施例中，多个接收单元71阵列排布设置在彩膜基板54上。这样有利于缩小了整个显示屏组件100的体积。具体地，多个接收单元71可以设置在彩膜基板54邻近液晶层53的表面，也可以设置在彩膜基板54邻近第二偏光片55的表面。多个接收单元71可以设置在彩膜基板54的表面，也可以嵌入彩膜基板54设置。
在一些实施例中，本申请的显示屏组件100还包括触摸感应层90。触摸感应层90设置在显示屏50背离背光模组30的一侧，用于感应触摸感应层90表面生物体的动作信息。
具体地，触摸感应层90通过光学胶(Optically Clear Adhesive，OCA)91 粘合在显示屏50背离背光模组30的一侧。更具体地，触摸感应层90通过OCA胶粘合在第二偏光片55上。
请参见图5，本申请还提供一种电子设备200，其包括设备主体210及本申请实施例的显示屏组件100。显示屏组件100设置在设备主体210上。
本申请的设备主体210包括不限于为指纹识别装置本体、电脑本体、笔记本电脑本体、平板电脑本体、手机本体、智能手环本体、智能手表本体、智能眼镜本体、电子书籍阅读器本体、便携多媒体播放器本体、智能锁本体等。
本申请的电子设备100包括但不限于指纹识别装置、电脑、笔记本电脑、平板电脑、手机、智能手环、智能手表、智能眼镜、电子书籍阅读器、便携多媒体播放器、智能锁等带有显示屏组件的设备。
以上所述，仅为本申请的具体实施方式，但本申请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申请揭露的技术范围内，可轻易的想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。
Claims (12)
- 一种显示屏组件，其特征在于，包括背光模组、红外光源、显示屏及红外接收器；所述背光模组包括框架，所述框架设有容置腔及连通所述容置腔的出光口；所述出光口对准所述显示屏，所述背光模组用于为所述显示屏提供可见光；所述红外光源设置在所述容置腔内，用于发射红外光；所述红外接收器设置在所述显示屏内，用于接收从所述显示屏背离所述背光模组的一侧的生物体反射回来的红外光。
- 根据权利要求1所述的显示屏组件，其特征在于，所述显示屏包括间隔且层叠设置的第一偏光片和第二偏光片，所述红外接收器设置在所述第一偏光片和第二偏光片之间。
- 根据权利要求2所述的显示屏组件，其特征在于，所述显示屏还包括设置在所述第一偏光片和所述第一偏光片之间的薄膜晶体管阵列基板；所述薄膜晶体管阵列基板包括基板和多个阵列排布在所述基板上的薄膜晶体管；所述红外接收器包括多个接收单元，多个接收单元呈阵列排布；所述接收单元与所述薄膜晶体管同侧设置，且所述接收单元设置在阵列排布的所述薄膜晶体管的间隙中；或者所述多个接收单元设置在所述基板背离所述薄膜晶体管的一面，且对应所述阵列排布的薄膜晶体管的间隙设置。
- 根据权利要求2所述的显示屏组件，其特征在于，所述显示屏还包括设置在所述第一偏光片和所述第一偏光片之间的彩膜基板；所述红外接收器包括多个接收单元，所述多个接收单元阵列排布设置在所述彩膜基板上。
- 根据权利要求1所述的显示屏组件，其特征在于，所述背光模组还包括背光源及导光板；所述背光源设于所述容置腔内，用于提供可见光；所述导光板设于所述容置腔内，且包括第一入光面及与所述第一入光面相连的出光面，所述第一入光面邻近所述红外光源及所述背光源设置，所述红外光源发出的红外光及所述背光源发出的可见光自所述第一入光面进入到所述导光板，且自所述出光面出射，所述出光面邻近所述显示屏设置。
- 根据权利要求5所述的显示屏组件，其特征在于，所述红外光源和所述背光源的数量均为多个，多个所述红外光源和多个所述背光源交替设置在所述框架的内壁，且邻近所述第一入光面。
- 根据权利要求5所述的显示屏组件，其特征在于，所述导光板还包括第二入光面；所述第二入光面与所述第一入光面相背设置，且与所述出光面相连；所述红外光源和所述背光源的数量均为多个，一部分所述红外光源和所述背光源交替设置在邻近所述第一入光面的位置，另一部分所述红外光源和所述背光源交替设置在邻近所述第二入光面的位置。
- 根据权利要求5所述的显示屏组件，其特征在于，所述背光模组还包括反射片，所述反射片叠设于所述导光板背离所述出光面的一侧，所述反射片用于将自所述导光板出射的红外光和可见光反射入所述导光板内。
- 根据权利要求5所述的显示屏组件，其特征在于，所述背光模组还包括遮光胶；所述遮光胶设置的所述框架上邻近所述出光口，所述遮光胶环绕所述出光口设置，以防止红外光和可见光泄漏。
- 根据权利要求8所述的显示屏组件，其特征在于，所述背光模组还包括扩散片；所述扩散片设置在所述导光板的出光面。
- 根据权利要求10所述的显示屏组件，其特征在于，所述背光模组还包括增光片；所述增光片设置在所述扩散片背离所述导光板的表面上，用于改变红外光和可见光的方向，使红外光和可见光照射到所述显示屏上。
- 一种电子设备，其特征在于，包括设备主体及权利要求1-11任一项所述的显示屏组件；所述显示屏组件设置在所述设备主体上。
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| JP2006011711A (ja) * | 2004-06-24 | 2006-01-12 | Sony Ericsson Mobilecommunications Japan Inc | 認証装置及び携帯端末 |
| US20170124376A1 (en) * | 2015-10-28 | 2017-05-04 | Qualcomm Incorporated | Infrared fluorescent backlight for optical touch and fingerprint |
| CN106094330A (zh) * | 2016-06-03 | 2016-11-09 | 京东方科技集团股份有限公司 | 背光源及其制造方法和用途、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 |
| CN209486432U (zh) * | 2019-01-16 | 2019-10-11 | 柳州阜民科技有限公司 | 电子设备 |
| CN109901324A (zh) * | 2019-03-27 | 2019-06-18 | 京东方科技集团股份有限公司 | 显示面板、手势识别显示装置、识别方法和可读存储介质 |
| CN111339860A (zh) * | 2020-02-17 | 2020-06-26 | 南昌欧菲生物识别技术有限公司 | 显示屏组件及电子设备 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115981045A (zh) * | 2023-03-23 | 2023-04-18 | 惠科股份有限公司 | 显示装置及电子设备 |
| CN115993913A (zh) * | 2023-03-23 | 2023-04-21 | 惠科股份有限公司 | 显示模组及电子设备 |
| CN115981045B (zh) * | 2023-03-23 | 2023-06-23 | 惠科股份有限公司 | 显示装置及电子设备 |
| US12038640B1 (en) | 2023-03-23 | 2024-07-16 | HKC Corporation Limited | Display device and electronic device |
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