WO2022194058A1 - 触控显示装置和电子设备 - Google Patents

触控显示装置和电子设备 Download PDF

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Publication number
WO2022194058A1
WO2022194058A1 PCT/CN2022/080420 CN2022080420W WO2022194058A1 WO 2022194058 A1 WO2022194058 A1 WO 2022194058A1 CN 2022080420 W CN2022080420 W CN 2022080420W WO 2022194058 A1 WO2022194058 A1 WO 2022194058A1
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WIPO (PCT)
Prior art keywords
substrate
touch display
display device
pixel
infrared detection
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PCT/CN2022/080420
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English (en)
French (fr)
Inventor
杨文强
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维沃移动通信有限公司
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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 WO2022194058A1 publication Critical patent/WO2022194058A1/zh

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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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means

Definitions

  • the present application belongs to the field of display technology, and in particular relates to a touch display device and electronic equipment.
  • the in-cell solution (the method of embedding the touch panel function into the liquid crystal pixel) is the most common.
  • the common electrode is used as a touch electrode.
  • the touch capacitive screen in the related art needs to share the touch electrodes with the common electrodes of the LCM, so it must be driven in a time-division multiplexing manner, that is, display and touch are separated, and display driving is performed.
  • the touch detection is driven, the touch detection cannot be driven, and the display cannot be driven when the touch detection is driven. Due to the relationship of time-division multiplexing, horizontal stripes are prone to appear at the position where the display and touch time-division multiplexing are switched.
  • the purpose of the embodiments of the present application is to provide a touch display device and an electronic device, which can solve the problem that in the related art, in the liquid crystal display of the related art, driving and display cannot be performed at the same time, and time-division multiplexing is required for switching, resulting in poor display. question.
  • an embodiment of the present application provides a touch display device, the device comprising:
  • the backlight module is arranged on the side of the array substrate away from the color filter substrate.
  • the backlight module includes a backlight layer and a quantum dot coating, the quantum dot coating is located between the backlight layer and the array substrate, and the quantum dot coating is used to coat the backlight layer.
  • the emitted light is partly converted into infrared light.
  • the backlight layer includes several lamp groups, and each of the lamp groups includes a white light emitting diode (Light-Emitting Diode, LED) and a blue LED.
  • each of the lamp groups includes a white light emitting diode (Light-Emitting Diode, LED) and a blue LED.
  • the backlight module includes an infrared light backlight unit and a non-infrared light backlight unit, the infrared light backlight unit is used for emitting infrared light, and the non-infrared light backlight unit is used for emitting visible light.
  • the array substrate further includes a light-shielding pattern, a first substrate, and a plurality of thin film transistors arrayed on the first substrate, the plurality of thin film transistors including a first thin film transistor and a second thin film transistor, the infrared
  • the detection unit is connected to the first thin film transistor, the light-shielding pattern is located between the thin film transistor and the first substrate, and the active layer of the thin film transistor and the infrared detection unit are on the first substrate
  • the orthographic projection of the shading pattern coincides with the orthographic projection of the shading pattern on the first substrate.
  • the color filter substrate further includes a second substrate, the black matrix is disposed on the second substrate, the black matrix further defines a pixel opening area, and the pixels are disposed in the pixel opening area .
  • the size of the orthographic projection of each of the pixel units and the infrared detection unit corresponding to the pixel unit on the array substrate is less than 4 mm ⁇ 4 mm.
  • the infrared detection unit is an infrared sensor.
  • an embodiment of the present application provides an electronic device, where the electronic device includes the touch display device described in the first aspect.
  • the detection accuracy is high, and the capacitive touch driving signal and the display driving signal can be avoided.
  • FIG. 1 is a schematic diagram of a touch display device according to an embodiment of the present application.
  • FIG. 2 is a second schematic diagram of a touch display device according to an embodiment of the present application.
  • FIG. 3 is a third schematic diagram of a touch display device according to an embodiment of the present application.
  • Fig. 4 is the cross-sectional schematic diagram cut along A-A in Fig. 1;
  • FIG. 5 is a schematic structural diagram of a lamp group provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • FIG. 1 is a schematic diagram of a touch display device provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of a touch display device provided by an embodiment of the application
  • FIG. 3 This is the third schematic diagram of a touch display device according to an embodiment of the present application
  • FIG. 4 is a cross-sectional schematic diagram taken along A-A in FIG. 1 .
  • an embodiment of the present application provides a touch display device, which is applied to electronic equipment.
  • the touch display device 10 may include a color filter substrate 11 , an array substrate 12 and a liquid crystal layer 13 .
  • the film substrate 11 and the array substrate 12 are arranged in a cell-to-cell arrangement, and the liquid crystal layer 13 is arranged between the color filter substrate 11 and the array substrate 12 .
  • the color filter substrate 11 includes a black matrix 113 and a plurality of pixel units 111 distributed in the array.
  • the black matrix 113 can block light from passing through.
  • the black matrix 113 defines a pixel opening area and a first opening 114.
  • Each pixel unit 111 includes at least one
  • the pixels are arranged in the pixel opening area
  • the array substrate 12 includes a plurality of infrared detection units 121 .
  • the infrared detection units 121 are arranged in a one-to-one correspondence with the pixel units 111 , and the first opening 114 is on the array substrate 12 .
  • the orthographic projection overlaps with the infrared detection unit 121 at least partially.
  • one infrared detection unit 121 corresponds to at least one pixel, so as to achieve uniform distribution of the infrared detection units 121 on the touch display device 10 to meet the resolution requirement for touch control.
  • one pixel unit 111 includes one pixel, that is, one infrared detection unit 121 corresponds to one pixel. At this time, the infrared detection unit 121 has the highest distribution density and high touch sensitivity; in FIG. 2 and FIG. 3, one pixel unit 111 It includes two pixels, that is, one infrared detection unit 121 corresponds to two pixels. At this time, the distribution density of the infrared detection unit 121 decreases.
  • FIG. 1 one pixel unit 111 includes one pixel, that is, one infrared detection unit 121 corresponds to one pixel. At this time, the distribution density of the infrared detection unit 121 decreases.
  • the size of the orthographic projection of each pixel unit 111 and the infrared detection unit 121 corresponding to the pixel unit 111 on the array substrate 12 is less than 4mm ⁇ 4mm, in other words, every 4mm ⁇ 4mm range is An infrared detection unit 121 is provided, and there may be one pixel or a plurality of pixels within this range.
  • a pixel includes a red sub-pixel, a green sub-pixel and a blue sub-pixel.
  • the infrared detection unit 121 is an infrared sensor for detecting infrared light.
  • the orthographic projection of the first opening 114 on the array substrate 12 at least partially overlaps with the infrared detection unit 121 , the infrared light entering the first opening 114 from outside the touch display device 10 can be absorbed by the array substrate 12 .
  • the infrared detection unit 121 of the IR detection unit 121 detects that the position coordinate corresponding to the infrared detection unit 121 is touched by a finger, the detection of the touch position is realized.
  • the opening size of the first opening 114 can be adjusted according to actual requirements, and it should be ensured that enough infrared light can be irradiated to the position where the infrared detection unit 121 is located.
  • the infrared detection unit by arranging the infrared detection unit on the array substrate, and using the infrared detection unit to detect the infrared rays radiated by the human body to realize touch position recognition, it is not necessary to reuse the common electrode of the display drive as the touch electrode, which can avoid The interference between the capacitive touch driving signal and the display driving signal and the problem of poor display caused by time-division multiplexing of touch and display can also ensure a sufficiently high touch precision.
  • the array substrate 12 further includes a light-shielding pattern 123 , a first substrate 122 , and a plurality of thin film transistors arrayed on the first substrate 122 , wherein the plurality of thin film transistors include the first thin film The transistor 124 and the second thin film transistor, the infrared detection unit 121 is connected to the first thin film transistor 124, so as to pass the working state of the infrared detection unit 121 connected with the first thin film transistor 124, and the second thin film transistor is used to control the corresponding pixel on and off.
  • the light-shielding pattern 123 can be disposed on the side of the first substrate 122 close to the liquid crystal layer 13 , that is, the light-shielding pattern 123 is located between the thin film transistor and the first substrate 122 , and the light-shielding pattern 123 is also located between the infrared detection unit 121 and the first substrate 122 .
  • the orthographic projection of the active layer of the thin film transistor and the infrared detection unit 121 on the first substrate 122 coincides with the orthographic projection of the shading pattern 123 on the first substrate 122, so as to prevent light from passing through the first substrate 122.
  • the active layer of the thin film transistor is irradiated from the side to affect the normal operation of the thin film transistor, and at the same time, it is also avoided that the light is irradiated from the side of the first substrate 122 to the position of the infrared detection unit 121 to affect the infrared light detection, so as to avoid inaccurate touch position detection. .
  • the color filter substrate 11 further includes a second substrate 112, and the black matrix 113 is disposed on the second substrate 112. Specifically, the black matrix 113 is disposed between the second substrate 112 and the liquid crystal layer 13. The black matrix 113 is used to define the pixel opening area and the first opening area 114 .
  • the touch display device 10 further includes a backlight module 14, the liquid crystal layer 13 cannot emit light by itself, and the backlight module 14 is required to provide a backlight source.
  • the backlight module 14 is disposed on the side of the array substrate 12 away from the color filter substrate 11, the light emitted by the backlight module 14 is irradiated on the liquid crystal layer 13, and the corresponding pixels are turned on through the thin film transistor to realize display; because the infrared detection unit 12 needs infrared The intensity of light can only be detected when it reaches a certain level, and the intensity of infrared light emitted by human fingers and other parts is limited.
  • the backlight provided by the backlight module 14 may also include infrared light, and the infrared light is emitted from the touch display device 10 to the touch display device 10 .
  • the infrared detection unit 121 After the surface of the human finger is reflected back to the touch display device 10, it is irradiated onto the infrared detection unit 121 from the first opening 114, thereby increasing the intensity of the infrared light detected by the infrared detection unit 121 and ensuring the accuracy of the touch position detection. And because infrared light is invisible, it will not affect the normal display of the pixel.
  • the backlight module 14 includes a backlight layer 141 and a quantum dot coating 142, and the quantum dot coating 142 is located between the backlight layer 141 and the array substrate 12, wherein the backlight layer 141 can be used to provide The backlight source of infrared light, and because the quantum dot coating contains quantum dots, the light emitted by the light layer 141 can be partially converted into infrared light through the photoluminescence effect of the quantum dots, and this part of the infrared light is irradiated to the human finger. Part of it is reflected back to the infrared detection unit 121 , thereby increasing the intensity of the infrared light detected by the infrared detection unit 121 .
  • the backlight layer 141 can also provide a backlight source including infrared light, so as to further enhance the intensity of the infrared light, so as to improve the touch detection accuracy.
  • FIG. 5 is a schematic structural diagram of a lamp group provided by an embodiment of the present application.
  • the backlight layer 141 includes Several light groups 1411, each light group 1411 includes a white LED 14111 and a blue LED 14112, since the normal backlight is white, that is, all white LEDs 14111 are used to emit light, and the embodiment of the present application can effectively compensate by adding blue LEDs 14112
  • the blue light absorbed by the quantum dots ensures the normal display of the touch display device 10 .
  • the ratio of the white LEDs 14111 to the blue LEDs 14112 in each lamp group 1411 is 5:1, that is, one blue LED 14112 is added for every five white LEDs 14111.
  • the backlight module 14 includes an infrared light backlight unit and a non-infrared light backlight unit, wherein the infrared light backlight unit is used to emit infrared light, and this part of the infrared light illuminates the back part of the human finger The infrared light is reflected back to the infrared detection unit 121, thereby increasing the intensity of the infrared light detected by the infrared detection unit 121; and the non-infrared light backlight unit is used to emit visible light, that is, a normal backlight source, so as to ensure the touch display device 10's normal display.
  • the infrared detection unit is arranged on the array substrate, and the infrared detection unit is used to detect the infrared rays radiated by the human body to realize the touch position recognition, and the detection accuracy is high, and the capacitive touch driving signal and the display driving signal can be avoided.
  • Another embodiment of the present application further provides an electronic device, the electronic device includes the touch display device described in the above embodiment, because the touch display device in the above embodiment is configured by arranging the infrared detection unit in the array On the substrate, the infrared detection unit is used to detect the infrared rays radiated by the human body to realize the touch position recognition, and the detection accuracy is high, which can avoid the interference between the capacitive touch driving signal and the display driving signal, and the time-division multiplexing of touch and display.
  • the electronic device in the embodiment of the present application also has the above beneficial effects, which are not repeated here in order to avoid repetition.
  • the electronic device in this embodiment of the present application may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a personal digital assistant (Personal Digital Assistant).
  • UMPC Ultra-Mobile Personal Computer
  • PDA Personal Digital Assistant
  • the non-mobile electronic device may be a personal computer (Personal Computer, PC), a television (Television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

Abstract

一种触控显示装置（10），包括：彩膜基板（11）、阵列基板（12）和液晶层（13），彩膜基板（11）包括阵列分布的若干像素单元（111）和黑矩阵（113），黑矩阵（113）限定出第一开口（114），每一像素单元（111）包括至少一个像素，阵列基板（12）包括若干红外检测单元（121），红外检测单元（121）与像素单元（111）一一对应，第一开口（114）在阵列基板（12）上的正投影与红外检测单元（121）至少部分重叠。

Description

触控显示装置和电子设备
相关申请的交叉引用
本申请主张在2021年03月17日在中国提交的中国专利申请No.202110285820.X的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于显示技术领域，特别涉及一种触控显示装置和电子设备。
背景技术
近年来，手机触控经历了电阻式触控，表面声波(超声波)触控，红外触控、电容式触控等方案，最终电容式触控成为目前最常用解决方案。液晶显示模组(Liquid Crystal Display Module，LCM)电容式触控之中，又以内嵌式(incell)方案(将触摸面板功能嵌入到液晶像素中的方法)运用最为普遍，该方案通过共用LCM的公共电极做触控电极，当手指触碰到LCM表面的时候，因为电容效应改变了该触控电极的容值，通过侦测容值的变化从而识别是否有触控动作。
然而，相关技术中的触控电容屏因为工艺制程设计等因素，触控电极需要与LCM的公共电极共用，所以必须使用分时复用的方式来驱动，即显示和触控分离，执行显示驱动的时候不能驱动触控侦测，而驱动触控侦测的时候不能驱动显示，由于分时复用的关系，显示和触控分时复用切换的位置容易出现横条纹。
发明内容
本申请实施例的目的是提供一种触控显示装置和电子设备，能够解决相关技术中的液晶显示屏中存在的驱动和显示无法同时执行、需要分时复用进行切换，导致显示不佳的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种触控显示装置，该装置包括：
彩膜基板、与所述彩膜基板对盒设置的阵列基板、设置在所述彩膜基板和所述阵列基板之间的液晶层，所述彩膜基板包括阵列分布的若干像素单元和黑矩阵，所述黑矩阵限定出第一开口，每一所述像素单元包括至少一个像素，所述阵列基板包括若干红外检测单元，所述红外检测单元与所述像素单元一一对应，所述第一开口在所述阵列基板上的正投影与所述红外检测单元至少部分重叠。
可选地，还包括：
背光模组，所述背光模组设置于所述阵列基板背离所述彩膜基板的一侧。
可选地，所述背光模组包括背光层和量子点涂层，所述量子点涂层位于所述背光层和所述阵列基板之间，所述量子点涂层用于将所述背光层发出的光部分转换成红外光。
可选地，所述背光层包括若干灯组，每一所述灯组包括白光发光二极管(Light-Emitting Diode，LED)和蓝光LED。
可选地，所述背光模组包括红外光背光单元和非红外光背光单元，所述红外光背光单元用于发出红外光，所述非红外光背光单元用于发出可见光。
可选地，所述阵列基板还包括遮光图形、第一基板以及阵列分布于所述第一基板上的若干薄膜晶体管，所述若干薄膜晶体管包括第一薄膜晶体管和第二薄膜晶体管，所述红外检测单元与所述第一薄膜晶体管连接，所述遮光图形位于所述薄膜晶体管与所述第一基板之间，所述薄膜晶体管的有源层以及所述红外检测单元在所述第一基板上的正投影与所述遮光图形在所述第一基板上的正投影重合。
可选地，所述彩膜基板还包括第二基板，所述黑矩阵设置于所述第二基板上，所述黑矩阵还限定出像素开口区，所述像素设置于所述像素开口区内。
可选地，每一所述像素单元和与所述像素单元对应的红外检测单元在所述阵列基板上的正投影的尺寸小于4mm×4mm。
可选地，所述红外检测单元为红外传感器。
第二方面，本申请实施例提供了一种电子设备，该电子设备包括如第一方面所述的触控显示装置。
在本申请实施例中，通过将红外检测单元设置在阵列基板上，利用红外检测单元侦测人体辐射的红外线以实现触控位置识别，检测精度高，可以避免电容触控驱动信号与显示驱动信号之间的干扰以及因触控和显示分时复用而导致的显示不佳的问题。
附图说明
图1为本申请实施例提供的一种触控显示装置的示意图之一；
图2为本申请实施例提供的一种触控显示装置的示意图之二；
图3为本申请实施例提供的一种触控显示装置的示意图之三；
图4为图1中沿A-A剖切的剖面示意图；
图5为本申请实施例提供的灯组的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域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，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的 触控显示装置和电子设备进行详细地说明。
请参考图1至图4，图1为本申请实施例提供的一种触控显示装置的示意图之一，图2为本申请实施例提供的一种触控显示装置的示意图之二，图3为本申请实施例提供的一种触控显示装置的示意图之三；图4为图1中沿A-A剖切的剖面示意图。如图1至图4所示，本申请实施例提供了一种触控显示装置，应用于电子设备，所述触控显示装置10可以包括彩膜基板11、阵列基板12以及液晶层13，彩膜基板11和阵列基板12呈对盒设置，液晶层13设置于彩膜基板11和阵列基板12之间。
其中，彩膜基板11包括黑矩阵113和阵列分布的若干像素单元111，黑矩阵113可以阻挡光线穿过，黑矩阵113限定出像素开口区和第一开口114，每一像素单元111包括至少一个像素，所述像素即设置于像素开口区内，而阵列基板12则包括若干红外检测单元121，红外检测单元121与像素单元111一一对应设置，并且，第一开口114在阵列基板12上的正投影与红外检测单元121至少部分重叠。也就是说，一个红外检测单元121对应于至少一个像素，以实现红外检测单元121在触控显示装置10上的均匀分布，以满足触控所需的分辨率要求。图1中，一个像素单元111内包括一个像素，即一个红外检测单元121对应于一个像素，此时红外检测单元121分布密度最高，触控灵敏度高；图2和图3中，一个像素单元111内包括两个像素，即一个红外检测单元121对应于两个像素，此时红外检测单元121的分布密度有所下降，图2中是同一行的相邻两个像素归为一个像素单元，与一个红外检测单元121对应，图3中则是同一列的相邻两个像素归为一个像素单元，与一个红外检测单元121对应。可以知道，在具体实施本申请技术方案时，可以考虑人的手指的面积和触控所需要的分辨率，以确定与一个红外检测单元121对应的一个像素单元111中包含的像素的数量。
本申请的一些实施例中，每一像素单元111和与像素单元111对应的红外检测单元121在阵列基板12上的正投影的尺寸小于4mm×4mm，换句话说，每4mm×4mm范围内即设置有一个红外检测单元121，该范围内可以有 一个像素或多个像素。
本申请的一些实施例中，一个像素包括红色子像素、绿色子像素和蓝色子像素。红外检测单元121为红外传感器，用于检测红外光。
本申请实施例中，由于第一开口114在阵列基板12上的正投影与红外检测单元121至少部分重叠，因此从触控显示装置10外进入第一开口114的红外光可以被阵列基板12上的红外检测单元121检测到，此时便知道该红外检测单元121对应的位置坐标被手指触控，从而实现触控位置的检测。可选的，第一开口114的开口尺寸可以根据实际需求进行调整，应确保足够的红外光能够照射到红外检测单元121所在位置。
由此，本申请实施例通过将红外检测单元设置在阵列基板上，利用红外检测单元侦测人体辐射的红外线以实现触控位置识别，无需复用显示驱动的公共电极作为触控电极，可以避免电容触控驱动信号与显示驱动信号之间的干扰以及因触控和显示分时复用而导致的显示不佳的问题，同时也可保证有足够高的触控精度。
如图4所示，本申请的一些实施例中，阵列基板12还包括遮光图形123、第一基板122以及阵列分布于第一基板122上的若干薄膜晶体管，其中，若干薄膜晶体管包括第一薄膜晶体管124和第二薄膜晶体管，红外检测单元121与第一薄膜晶体管124连接，从而通过第一薄膜晶体管124与之连接的红外检测单元121的工作状态，而第二薄膜晶体管则用于控制对应像素的开启与关闭。遮光图形123可以设置于第一基板122的靠近液晶层13的一侧，也即遮光图形123位于薄膜晶体管与第一基板122之间，同时遮光图形123也位于红外检测单元121与第一基板122之间，并且，薄膜晶体管的有源层以及红外检测单元121在第一基板122上的正投影与遮光图形123在第一基板122上的正投影重合，从而避免光线从第一基板122所在一侧照射到薄膜晶体管的有源层从而影响薄膜晶体管的正常工作，同时也避免光线从第一基板122所在一侧照射到红外检测单元121所在位置而影响红外光检测，以免触控位置检测不准确。
本申请的一些实施例中，彩膜基板11还包括第二基板112，黑矩阵113即设置于第二基板112上，具体的，黑矩阵113设置在第二基板112与液晶层13之间，黑矩阵113用于限定出像素开口区以及第一开口区114。
本申请实施例中，所述触控显示装置10还包括背光模组14，液晶层13无法自发光，需要背光模组14提供背光源。其中，背光模组14设置于阵列基板12背离彩膜基板11的一侧，背光模组14发出的光线照射到液晶层13上，通过薄膜晶体管开启相应像素实现显示；由于红外检测单元12需要红外光的强度达到一定程度才能检测到，而人的手指等部位发出的红外光的强度有限，因此，背光模组14提供的背光源还可以包括红外光，红外光从触控显示装置10出射到人的手指表面后，反射回触控显示装置10，从第一开口114照射到红外检测单元121上，从而提高红外检测单元121检测到的红外光的强度，确保触控位置检测的准确性，而由于红外光不可见，也不会影响像素的正常显示。
本申请的一些实施例中，背光模组14包括背光层141和量子点涂层142，量子点涂层142位于背光层141和阵列基板12之间，其中，背光层141可以用于提供不包括红外光的背光源，而由于量子点涂层中含有量子点，通过量子点的光致发光效应可以将被光层141发出的光部分转换成红外光，这部分红外光照射到人的手指后部分反射回红外检测单元121处，从而提高红外检测单元121检测到的红外光的强度。当然，背光层141也可以提供包括红外光的背光源，以进一步增强红外光的强度，以提高触控检测精度。
请参考图5，为本申请实施例提供的灯组的结构示意图。如图5所示，本申请实施例中，考虑到量子点的光致发光效应会吸收部分的蓝光，因此，可以对被光层141发出的背光源进行补偿；示例性的，背光层141包括若干灯组1411，每一灯组1411包括白光LED 14111和蓝光LED 14112，由于正常的背光源为白色，即全采用白色LED 14111进行发光，而本申请实施例通过增加蓝光LED 14112，可以有效补偿被量子点吸收的蓝光，确保触控显示装置10的正常显示。可选的，每一灯组1411中的白光LED 14111和蓝光LED  14112的比例为5:1，即每5个白光LED 14111就增加1个蓝光LED 14112。
在本申请的另一些实施例中，背光模组14则包括红外光背光单元和非红外光背光单元，其中，红外光背光单元用于发出红外光，这部分红外光照射到人的手指后部分反射回红外检测单元121处，从而提高红外检测单元121检测到的红外光的强度红外光；而所述非红外光背光单元则用于发出可见光，即正常的背光源，以确保触控显示装置10的正常显示。
由此，本申请实施例通过将红外检测单元设置在阵列基板上，利用红外检测单元侦测人体辐射的红外线以实现触控位置识别，检测精度高，可以避免电容触控驱动信号与显示驱动信号之间的干扰以及因触控和显示分时复用而导致的显示不佳的问题。
本申请另一方面实施例还提供了一种电子设备，所述电子设备包括上述实施例中所述的触控显示装置，由于上述实施例中的触控显示装置通过将红外检测单元设置在阵列基板上，利用红外检测单元侦测人体辐射的红外线以实现触控位置识别，检测精度高，可以避免电容触控驱动信号与显示驱动信号之间的干扰以及因触控和显示分时复用而导致的显示不佳的问题，本申请实施例中的电子设备也对应具有上述有益效果，为避免重复，在此不再赘述。
本申请实施例中的电子设备可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(Ultra-Mobile Personal Computer，UMPC)、上网本或者个人数字助理(Personal Digital Assistant，PDA)等，非移动电子设备可以为个人计算机(Personal Computer，PC)、电视机(Television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、 方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种触控显示装置，包括：彩膜基板、与所述彩膜基板对盒设置的阵列基板、设置在所述彩膜基板和所述阵列基板之间的液晶层，其中，所述彩膜基板包括阵列分布的若干像素单元和黑矩阵，所述黑矩阵限定出第一开口，每一所述像素单元包括至少一个像素，所述阵列基板包括若干红外检测单元，所述红外检测单元与所述像素单元一一对应，所述第一开口在所述阵列基板上的正投影与所述红外检测单元至少部分重叠。
  2. 根据权利要求1所述的触控显示装置，还包括：
    背光模组，所述背光模组设置于所述阵列基板背离所述彩膜基板的一侧。
  3. 根据权利要求2所述的触控显示装置，其中，所述背光模组包括背光层和量子点涂层，所述量子点涂层位于所述背光层和所述阵列基板之间，所述量子点涂层用于将所述背光层发出的光部分转换成红外光。
  4. 根据权利要求3所述的触控显示装置，其中，所述背光层包括若干灯组，每一所述灯组包括白光LED和蓝光LED。
  5. 根据权利要求2所述的触控显示装置，其中，所述背光模组包括红外光背光单元和非红外光背光单元，所述红外光背光单元用于发出红外光，所述非红外光背光单元用于发出可见光。
  6. 根据权利要求1所述的触控显示装置，其中，所述阵列基板还包括遮光图形、第一基板以及阵列分布于所述第一基板上的若干薄膜晶体管，所述若干薄膜晶体管包括第一薄膜晶体管和第二薄膜晶体管，所述红外检测单元与所述第一薄膜晶体管连接，所述遮光图形位于所述薄膜晶体管与所述第一基板之间，所述薄膜晶体管的有源层以及所述红外检测单元在所述第一基板上的正投影与所述遮光图形在所述第一基板上的正投影重合。
  7. 根据权利要求1所述的触控显示装置，其中，所述彩膜基板还包括第二基板，所述黑矩阵设置于所述第二基板上，所述黑矩阵还限定出像素开口 区，所述像素设置于所述像素开口区内。
  8. 根据权利要求1所述的触控显示装置，其中，每一所述像素单元和与所述像素单元对应的红外检测单元在所述阵列基板上的正投影的尺寸小于4mm×4mm。
  9. 根据权利要求1所述的触控显示装置，其中，所述红外检测单元为红外传感器。
  10. 一种电子设备，包括如权利要求1-9任一项所述的触控显示装置。
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CN107844219A (zh) * 2017-11-17 2018-03-27 合肥鑫晟光电科技有限公司 触控基板及其制作方法、显示装置
CN110441968A (zh) * 2019-08-14 2019-11-12 京东方科技集团股份有限公司 一种液晶显示面板和显示装置
CN112835225A (zh) * 2021-03-17 2021-05-25 维沃移动通信有限公司 触控显示装置和电子设备

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