WO2021036744A1 - 显示模组及电子设备 - Google Patents

显示模组及电子设备 Download PDF

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Publication number
WO2021036744A1
WO2021036744A1 PCT/CN2020/107769 CN2020107769W WO2021036744A1 WO 2021036744 A1 WO2021036744 A1 WO 2021036744A1 CN 2020107769 W CN2020107769 W CN 2020107769W WO 2021036744 A1 WO2021036744 A1 WO 2021036744A1
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WO
WIPO (PCT)
Prior art keywords
substrate
display module
image sensor
collimator
black matrix
Prior art date
Application number
PCT/CN2020/107769
Other languages
English (en)
French (fr)
Inventor
缪国生
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
Priority to EP20856723.0A priority Critical patent/EP4009229A4/en
Priority to JP2022513312A priority patent/JP7367190B2/ja
Priority to KR1020227008407A priority patent/KR20220046652A/ko
Publication of WO2021036744A1 publication Critical patent/WO2021036744A1/zh
Priority to US17/680,389 priority patent/US11726359B2/en

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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
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13312—Circuits comprising photodetectors for purposes other than feedback
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1686—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated camera
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings
    • 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
    • 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
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device

Definitions

  • the present disclosure relates to the technical field of display devices, and in particular to a display module and electronic equipment.
  • the fingerprint module is one of the core components of electronic equipment. With the continuous development of the electronic equipment industry, people have higher and higher performance requirements for the fingerprint module, which brings greater challenges to the structural design of the fingerprint module.
  • the structure of the fingerprint module is relatively diverse.
  • the optical fingerprint module that can be placed under the display screen can improve the appearance and texture of the electronic device. Therefore, this type of fingerprint module has been more and more widely used.
  • There is a fingerprint recognition area on the display screen and the user can put his finger in the fingerprint recognition area, and the fingerprint module under the fingerprint recognition area can recognize the user's fingerprint information.
  • the above-mentioned fingerprint module is usually set in a part of the electronic device, so the fingerprint recognition area of the display screen is small, and the user needs to place the finger in the designated fingerprint recognition area to realize the fingerprint recognition, which results in low fingerprint recognition efficiency.
  • the present disclosure provides a display module and electronic equipment to solve the problem of low fingerprint identification efficiency.
  • a display module includes a first substrate.
  • One side surface of the first substrate is provided with an image sensor, a color filter layer and a black matrix, and the other side surface of the first substrate is provided with a collimator, so The color filter layer and the black matrix are arranged in the same layer, the image sensor is located between the black matrix and the first substrate, and the collimator and the image sensor are arranged along a direction perpendicular to the first substrate. The direction of the substrate is arranged at intervals.
  • An electronic device includes the above-mentioned display module.
  • the collimator and the image sensor are both arranged on the first substrate, and the image sensor corresponds to the black matrix.
  • the area of the black matrix in the display module is relatively large. Therefore, the collimator and the image sensor are arranged on the first substrate.
  • the image sensor can be distributed on the display module in a large area, so that the area of the fingerprint recognition area on the display module is enlarged, and the user can flexibly choose the position of the finger, thereby improving the efficiency of fingerprint recognition.
  • FIG. 1 is a schematic diagram of a partial structure of an electronic device disclosed in an embodiment of the disclosure
  • Figure 2 is a partial enlarged view of part A in Figure 1;
  • FIG. 3 is a schematic diagram of a photoelectric conversion unit in an electronic device disclosed in an embodiment of the disclosure.
  • the embodiments of the present disclosure disclose a display module, which can be applied to electronic devices.
  • the display module may specifically include a first substrate 120 and a second substrate 110, and the second substrate 110 and the first substrate 120 may be stacked.
  • An image sensor 160, a color filter layer 130, and a black matrix 140 are provided on the surface of the first substrate 120 facing the second substrate 110.
  • the color filter layer 130 and the black matrix 140 are arranged in the same layer.
  • the color filter layer 130 may include multiple red filter layers, yellow filter layers, and blue filter layers.
  • the filter layer and the blue filter layer can be arranged in an array.
  • the black matrix 140 can fill the gaps between the adjacent groups of the red filter layer, the yellow filter layer and the blue filter layer, thereby shielding the wiring structure. Therefore, the distribution area of the black matrix 140 in the display module is relatively large. Large, it basically corresponds to the entire display area setting of the display module.
  • the image sensor 160 corresponds to the black matrix 140.
  • the image sensor 160 is located between the black matrix 140 and the first substrate 120.
  • a collimator 150 is provided on the surface of the first substrate 120 facing away from the second substrate 110.
  • the image sensor 160 and the image sensor 160 are spaced apart along a direction perpendicular to the first substrate 120.
  • the collimator 150 and the image sensor 160 can be used together to realize fingerprint recognition.
  • the collimator 150 is provided with a plurality of light passing holes, and the axis of the light passing holes may be perpendicular to the image sensor 160.
  • the collimator 150 can control the light flux passing through the collimator 150 by using the principle of small hole imaging. .
  • the image sensor 160 can sense light, and can convert light signals into electrical signals.
  • the display module further includes a transparent cover 170, a first polarizer 190, and a second polarizer 180.
  • the second polarizer 180 is disposed on the side of the second substrate 110 away from the first substrate 120.
  • the first polarizer 190 It is arranged on the side of the first substrate 120 away from the second substrate 110, and the transparent cover 170 is arranged on the side of the first polarizer 190 away from the first substrate 120.
  • the light in the display module is reflected by the user's fingerprint (refer to the optical path indicated by the dashed arrow in FIG. 1), and the fingerprint valley 310 of the user's finger 300 and The fingerprint ridge 320 has different reflection effects on light. Therefore, the light reflected by the finger 300 carries the user's fingerprint information.
  • the reflected light passes through the light hole of the collimator 150 and irradiates the image sensor 160.
  • the image sensor 160 senses the light signal.
  • the optical signal representing the fingerprint information is converted into an electrical signal, which can be transmitted to the main board of the electronic device, and the main board can determine whether the obtained fingerprint information is consistent with the pre-stored fingerprint information, thereby judging whether the user's access operation is legal .
  • the collimator 150 and the image sensor 160 are both disposed on the first substrate 120, and the collimator 150 and the image sensor 160 are arranged at intervals along a direction perpendicular to the first substrate 120.
  • the image sensor 160 corresponds to the black matrix 140.
  • the black matrix 140 has a relatively large area in the display module. Therefore, the collimator 150 and the image sensor 160 can be distributed on the display module in a large area, so that the display module The area of the fingerprint recognition area is enlarged, and the user can flexibly choose where to place the finger 300, thereby improving the efficiency of fingerprint recognition.
  • the process of arranging the collimator 150 and the image sensor 160 on the first substrate 120 is relatively simple. Therefore, the large-area arrangement of the collimator 150 and the image sensor 160 will not cause the cost of the display module to be too high.
  • the collimator 150 may be located between the first substrate 120 and the first polarizer 190, but since the collimator 150 has a certain thickness, the thickness of the entire display module will be increased when the collimator 150 is arranged in this way. As a result, the thickness of the display module increases.
  • a concave portion may be provided on a surface of the first polarizer 190 facing the first substrate 120, and the collimator 150 is located in the concave portion.
  • the collimator 150 can make full use of the space occupied by the first polarizer 190, which basically does not occupy additional space, thereby reducing the thickness of the display module.
  • the recesses here can be formed by processes such as exposure.
  • the image sensor 160 may be disposed on the surface of the first substrate 120 facing away from the collimator 150.
  • the image sensor 160 may be formed on the surface of the first substrate 120 by coating or the like.
  • the black matrix 140 is distributed in a large area in the display module. Therefore, the collimator 150 and the image sensor 160 can also correspond to the large area distribution of the black matrix 140, thereby further expanding the area of fingerprint recognition. That is, the display module has a fingerprint recognition area, the collimator 150 and the image sensor 160 are both located in the fingerprint recognition area, the fingerprint recognition area extends to the edge of the first substrate 120, so that the collimator 150 and the image sensor 160 covered The size of the area is substantially the same as the area where the first substrate 120 is located, thereby realizing full-screen unlocking.
  • the center of the projection of the collimator 150 coincides with the center of the projection of the image sensor 160.
  • the shape of the collimator 150 and the shape of the image sensor 160 can be the same. When the projection centers of the two coincide, the relative position of the two is more accurate, which makes the arrangement of the collimator 150 and the image sensor 160 easier, thereby improving the fingerprint Accuracy of recognition.
  • the number of the collimator 150 and the image sensor 160 can both be set to one, but this structure has higher requirements on the molding process. At the same time, the area of the single collimator 150 and the image sensor 160 is too large, and the utilization rate of some areas is low. , It will lead to the high cost of the display module.
  • the number of collimators 150 and image sensors 160 can be set to multiple, multiple collimators 150 are arranged at intervals, multiple image sensors 160 are arranged at intervals, and multiple collimators 150 and multiple images
  • the sensors 160 are arranged in a one-to-one correspondence, so that the collimator 150 and the image sensor 160 are easier to form, and the areas of the two are appropriately reduced, thereby reducing the cost of the display module.
  • this structure makes it easier to ensure the relative position between the corresponding collimator 150 and the image sensor 160, thereby improving the accuracy of fingerprint recognition.
  • a single image sensor 160 may include only one photoelectric conversion unit.
  • the image sensor 160 may include a plurality of photoelectric conversion units, and each photoelectric conversion unit is connected in series.
  • the photoelectric conversion unit includes a photodiode 161 and a first thin film transistor 162, and the photodiode 161 is electrically connected to the first thin film transistor 162.
  • the first thin film transistor 162 has a source (ie, S pole in the figure), a drain (ie, D pole in the figure), and a gate (ie, G pole in the figure), and the photodiode 161 is electrically connected to the source.
  • the drain can be electrically connected with the data line, and the gate can be electrically connected with the gate line.
  • the light reflected by the fingerprint can be projected onto the photodiode 161, causing the resistance value of the photodiode 161 to change, and a leakage current signal is generated.
  • the photodiode 161 transmits the leakage current signal to the corresponding through the first thin film transistor 162 in the conductive state.
  • the signal receiving unit to identify the fingerprint information.
  • a second thin film transistor 220 is provided on the surface of the second substrate 110 facing the first substrate 120, and a liquid crystal layer 230 is provided between the second substrate 110 and the first substrate 120.
  • the edge of the liquid crystal layer 230 With frame glue 240.
  • the display module may be a liquid crystal display module, so as to achieve the purpose of setting the fingerprint identification structure under the screen of the liquid crystal display module. of course.
  • the structure disclosed in the embodiments of the present disclosure can also be applied to OLED (Organic Light-Emitting Diode) display modules, AMOLED (Active-matrix organic light-emitting diode, active matrix organic light-emitting diode) display modules. Group and other types of display modules.
  • the embodiments of the present disclosure also disclose an electronic device, which includes the display module described in any of the above embodiments.
  • the electronic device may further include a backlight module 250.
  • the backlight module 250 may be disposed on a side of the second polarizer 180 away from the second substrate 110, which may It emits light to provide a light source for the display module. Since the collimator 150 and the image sensor 160 are disposed above the backlight module 250, the backlight module 250 will not affect the normal operation of the collimator 150 and the image sensor 160.
  • the electronic device disclosed in the embodiment of the present disclosure may be a smart phone, a tablet computer, an e-book reader, or a wearable device.
  • the electronic device may also be other devices, which is not limited in the embodiments of the present disclosure.

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

Abstract

本公开提供一种显示模组及电子设备，该显示模组包括第一基板，第一基板的一侧表面设有图像传感器、彩色滤光层和黑色矩阵，第一基板的另一侧表面设有准直器，彩色滤光层和黑色矩阵同层设置，图像传感器位于黑色矩阵与第一基板之间，准直器和图像传感器沿着垂直于第一基板的方向间隔排布。图像传感器与黑色矩阵相对应，该黑色矩阵在显示模组中的设置面积较大，因此准直器和图像传感器可以大面积地分布在显示模组上。

Description

显示模组及电子设备
相关申请的交叉引用
本申请主张在2019年8月29日在中国提交的中国专利申请号No.201910806711.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示装置技术领域，尤其涉及一种显示模组及电子设备。
背景技术
指纹模组是电子设备的核心部件之一，随着电子设备行业的不断发展，人们对于指纹模组的性能要求越来越高，这就给指纹模组的结构设计带来比较大的挑战。
指纹模组的结构形式比较多样，能够设置于显示屏下方的光学指纹模组可以提升电子设备的外观质感，因此此种指纹模组得到了越来越广泛的应用。显示屏上设有指纹识别区域，用户可以将手指放置在该指纹识别区域，该指纹识别区域下方的指纹模组即可识别用户的指纹信息。
上述指纹模组通常设置在电子设备的局部，因此显示屏的指纹识别区域较小，用户需要将手指放置在指定的指纹识别区域才可以实现指纹识别，这就导致指纹识别效率较低。
发明内容
本公开提供一种显示模组及电子设备，以解决指纹识别效率较低的问题。
为了解决上述问题，本公开采用下述技术方案：
一种显示模组，包括第一基板，所述第一基板的一侧表面设有图像传感器、彩色滤光层和黑色矩阵，所述第一基板的另一侧表面设有准直器，所述彩色滤光层和所述黑色矩阵同层设置，所述图像传感器位于所述黑色矩阵与所述第一基板之间，所述准直器和所述图像传感器沿着垂直于所述第一基板的方向间隔排布。
一种电子设备，包括上述显示模组。
本公开采用的技术方案能够达到以下有益效果：
本公开提供的显示模组中，准直器和图像传感器均设置于第一基板，该图像传感器与黑色矩阵相对应，该黑色矩阵在显示模组中的设置面积较大，因此准直器和图像传感器可以大面积地分布在显示模组上，使得显示模组上的指纹识别区域的面积扩大，用户可以灵活选择放置手指的位置，从而提升指纹识别效率。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例公开的电子设备的部分结构的示意图；
图2为图1中A部分的局部放大图；
图3为本公开实施例公开的电子设备中，光电转换单元的示意图。
附图标记说明：
110-第二基板、120-第一基板、130-彩色滤光层、140-黑色矩阵、150-准直器、160-图像传感器、161-光电二极管、162-第一薄膜晶体管、170-透光盖板、180-第二偏光片、190-第一偏光片、220-第二薄膜晶体管、230-液晶层、240-框胶、250-背光模组、300-手指、310-指纹谷、320-指纹脊。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合本公开具体实施例及相应的附图对本公开技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
以下结合附图，详细说明本公开各个实施例公开的技术方案。
如图1和图2所示，本公开实施例公开一种显示模组，该显示模组可以 应用于电子设备中。该显示模组具体可以包括第一基板120和第二基板110，该第二基板110和第一基板120可以堆叠设置。第一基板120朝向第二基板110的一侧表面设有图像传感器160、彩色滤光层130和黑色矩阵140。彩色滤光层130和黑色矩阵140同层设置，可选地，彩色滤光层130可以包括多个红色滤光层、黄色滤光层和蓝色滤光层，多个红色滤光层、黄色滤光层和蓝色滤光层可以以阵列排布的方式设置。黑色矩阵140则可以填充相邻的各组红色滤光层、黄色滤光层和蓝色滤光层之间的空隙，从而遮挡走线结构，因此该黑色矩阵140在显示模组的分布面积较大，其基本对应显示模组的整个显示区域设置。
图像传感器160与黑色矩阵140相对应，该图像传感器160位于黑色矩阵140与第一基板120之间，第一基板120背离第二基板110的一侧表面设有准直器150，准直器150和图像传感器160沿着垂直于第一基板120的方向间隔分布。这里的准直器150和图像传感器160配合使用可以实现指纹识别。可选地，该准直器150上开设有多个过光孔，这些过光孔的轴线可以垂直于图像传感器160，该准直器150可以利用小孔成像原理控制通过准直器150的光通量。图像传感器160可以感应光线，并且可以将光信号转化为电信号。
另外，显示模组还包括透光盖板170、第一偏光片190和第二偏光片180，第二偏光片180设置于第二基板110背离第一基板120的一侧，第一偏光片190设置于第一基板120背离第二基板110的一侧，透光盖板170设置于第一偏光片190背离第一基板120的一侧。
当用户将手指300放到透光盖板170上以后，显示模组内的光线被用户的指纹反射(具体参考图1中带箭头虚线所指示的光学路径)，用户手指300的指纹谷310和指纹脊320对于光线的反射效果不同，因此手指300反射的光线携带有用户的指纹信息，被反射的光线经过准直器150的过光孔照射到图像传感器160上，图像传感器160感应光信号，然后将代表指纹信息的光信号转化为电信号，该电信号可以传递至电子设备的主板上，主板可以判断所获得的指纹信息是否与预先储存的指纹信息一致，从而判断用户的访问操作是否合法。
本公开实施例公开的显示模组中，准直器150和图像传感器160均设置于第一基板120，该准直器150和图像传感器160沿着垂直于第一基板120的方向间隔排布，且图像传感器160与黑色矩阵140相对应，该黑色矩阵140在显示模组中的设置面积较大，因此准直器150和图像传感器160可以大面积地分布在显示模组上，使得显示模组上的指纹识别区域的面积扩大，用户可以灵活选择放置手指300的位置，从而提升指纹识别效率。另外，在第一基板120上设置准直器150和图像传感器160的工艺相对比较简单，因此准直器150和图像传感器160大面积设置时也不会导致显示模组的成本过高。
具体地，准直器150可以位于第一基板120与第一偏光片190之间，但是由于准直器150具有一定的厚度，因此准直器150如此设置时会增加整个显示模组的厚度，导致显示模组的厚度增大。为此，可以在第一偏光片190朝向第一基板120的一侧表面设有凹陷部，准直器150位于该凹陷部内。此时，准直器150可以充分利用第一偏光片190占用的空间，其基本不会额外占用空间，从而减小显示模组的厚度。可选地，这里的凹陷部可以通过曝光等工艺形成。
可选地，由于图像传感器160比较薄，因此为了简化图像传感器160的成型工艺，可以将图像传感器160设置于第一基板120背离准直器150的一侧表面上。例如，可以通过镀膜等方式在第一基板120的表面形成图像传感器160。
如前所述，黑色矩阵140在显示模组中是大面积分布的，因此准直器150和图像传感器160也可以对应黑色矩阵140大面积分布，从而进一步扩大可以进行指纹识别的区域的面积。即，显示模组具有指纹识别区域，准直器150和图像传感器160均位于该指纹识别区域，该指纹识别区域延伸至第一基板120的边缘，使得准直器150和图像传感器160所覆盖的区域与第一基板120所在的区域的大小基本相同，从而实现全屏解锁。
一种可选的实施例中，在垂直于第一基板120的方向上，准直器150的投影的中心与图像传感器160的投影的中心重合。准直器150的形状和图像传感器160的形状可以相同，两者的投影中心重合时，两者的相对位置更加精确，从而使得准直器150和图像传感器160的布置更加简单，以此提升指 纹识别的准确率。
准直器150和图像传感器160的数量可以均设置为一个，但是此种结构对成型工艺的要求较高，同时单个准直器150和图像传感器160的面积过大，有些区域的利用率偏低，就会导致显示模组的成本偏高。有鉴于此，可以将准直器150和图像传感器160的数量均设置为多个，多个准直器150间隔设置，多个图像传感器160间隔设置，且多个准直器150和多个图像传感器160一一对应排布，从而使得准直器150和图像传感器160更容易成型，且两者的面积适当减小，以此降低显示模组的成本。当然，该结构更容易保证对应的准直器150和图像传感器160之间的相对位置，从而提高指纹识别的准确度。
具体地，单个图像传感器160可以仅包括一个光电转换单元。另一种实施例中，图像传感器160可以包括多个光电转换单元，各光电转换单元串联。如图3所示，该光电转换单元包括光电二极管161和第一薄膜晶体管162，光电二极管161与第一薄膜晶体管162电连接。具体地，第一薄膜晶体管162具有源极(即图中的S极)、漏极(即图中的D极)和栅极(即图中的G极)，光电二极管161与源极电连接，漏极可以与数据线电连接，栅极可以与栅极线电连接。指纹所反射的光线可以投射至光电二极管161上，引起光电二极管161的阻值发生变化，产生漏电流信号，光电二极管161通过处于导通状态的第一薄膜晶体管162将漏电流信号传出到对应的信号接收单元，从而识别出指纹信息。
进一步的实施例中，第二基板110朝向第一基板120的一侧表面设有第二薄膜晶体管220，第二基板110和第一基板120之间设有液晶层230，该液晶层230的边缘设有框胶240。也就是说，该显示模组可以是液晶显示模组，从而实现液晶显示模组设置屏下指纹识别结构的目的。当然。本公开实施例所公开的结构也可以适用于OLED(Organic Light-Emitting Diode，有机发光二极管)显示模组、AMOLED(Active-matrix organic light-emitting diode，有源矩阵有机发光二极体)显示模组等类型的显示模组中。
本公开实施例还公开一种电子设备，其包括上述任一实施例所述的显示模组。可选地，当该显示模组为液晶显示模组时，电子设备还可以包括背光 模组250，该背光模组250可以设置于第二偏光片180背离第二基板110的一侧，其可以发光，从而为显示模组提供光源。由于准直器150和图像传感器160设置于背光模组250的上方，因此背光模组250不会影响准直器150和图像传感器160的正常工作。
本公开实施例所公开的电子设备可以为智能手机、平板电脑、电子书阅读器或可穿戴设备。当然，该电子设备也可以是其他设备，本公开实施例对此不做限制。
本公开上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本公开的实施例而已，并不用于限制本公开。对于本领域技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本公开的权利要求范围之内。

Claims (10)

  1. 一种显示模组，包括第一基板(120)，所述第一基板(120)的一侧表面设有图像传感器(160)、彩色滤光层(130)和黑色矩阵(140)，所述第一基板(120)的另一侧表面设有准直器(150)，所述彩色滤光层(130)和所述黑色矩阵(140)同层设置，所述图像传感器(160)位于所述黑色矩阵(140)与所述第一基板(120)之间，所述准直器(150)和所述图像传感器(160)沿着垂直于所述第一基板(120)的方向间隔排布。
  2. 根据权利要求1所述的显示模组，其中，所述第一基板(120)背离所述图像传感器(160)的一侧设有第一偏光片(190)，所述第一偏光片(190)朝向所述第一基板(120)的一侧表面设有凹陷部，所述准直器(150)位于所述凹陷部内。
  3. 根据权利要求1所述的显示模组，其中，所述准直器(150)开设有多个过光孔，所述过光孔的轴线垂直于所述图像传感器(160)。
  4. 根据权利要求1所述的显示模组，其中，所述显示模组具有指纹识别区域，所述准直器(150)和所述图像传感器(160)均位于所述指纹识别区域，所述指纹识别区域延伸至所述第一基板(120)的边缘。
  5. 根据权利要求1所述的显示模组，其中，在垂直于所述第一基板(120)的方向上，所述准直器(150)的投影的中心与所述图像传感器(160)的投影的中心重合。
  6. 根据权利要求1所述的显示模组，其中，所述准直器(150)和所述图像传感器(160)的数量均为多个，多个所述准直器(150)间隔设置，多个所述图像传感器(160)间隔设置，且多个所述准直器(150)和多个所述图像传感器(160)一一对应排布。
  7. 根据权利要求1所述的显示模组，其中，所述图像传感器(160)包括多个光电转换单元，各所述光电转换单元串联，所述光电转换单元包括光电二极管(161)和第一薄膜晶体管(162)，所述光电二极管(161)与所述第一薄膜晶体管(162)电连接。
  8. 根据权利要求1所述的显示模组，其中，还包括第二基板(110)，所 述第二基板(110)朝向所述第一基板(120)的一侧表面设有第二薄膜晶体管(220)，所述第二基板(110)和所述第一基板(120)之间设有液晶层(230)。
  9. 一种电子设备，包括权利要求1-8中任一项所述的显示模组。
  10. 根据权利要求9所述的电子设备，还包括背光模组(250)，所述显示模组还包括第二基板(110)，所述第二基板(110)背离所述第一基板(120)的一侧设有第二偏光片(180)，所述背光模组(250)设置于所述第二偏光片(180)背离所述第二基板(110)的一侧。
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