WO2018209905A1 - 触摸显示面板及触摸显示屏、电子设备 - Google Patents

触摸显示面板及触摸显示屏、电子设备 Download PDF

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Publication number
WO2018209905A1
WO2018209905A1 PCT/CN2017/110383 CN2017110383W WO2018209905A1 WO 2018209905 A1 WO2018209905 A1 WO 2018209905A1 CN 2017110383 W CN2017110383 W CN 2017110383W WO 2018209905 A1 WO2018209905 A1 WO 2018209905A1
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WO
WIPO (PCT)
Prior art keywords
substrate
touch
display panel
touch display
metal
Prior art date
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PCT/CN2017/110383
Other languages
English (en)
French (fr)
Inventor
丁小梁
王海生
刘英明
韩艳玲
刘伟
李昌峰
Original Assignee
京东方科技集团股份有限公司
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.)
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/063,880 priority Critical patent/US20210165261A1/en
Publication of WO2018209905A1 publication Critical patent/WO2018209905A1/zh

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    • 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
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133548—Wire-grid polarisers
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133567—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the back side
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes

Definitions

  • the present disclosure relates to a touch display panel and a touch display screen, an electronic device.
  • a touch screen also known as a "touch screen” or a “touch panel”
  • the on-screen touch feedback system can drive various connection devices according to a pre-programmed program, which can be used to replace the mechanical button panel, and to create a live-action audio and video effect through the liquid crystal display screen.
  • the touch screen is a simple, convenient and natural human-computer interaction method. The touch screen can be applied to various electronic devices.
  • the touch sensor in the touch screen of the prior art generally occupies a large installation space, so that the shape of the touch screen is not slim enough to affect the appearance.
  • Embodiments of the present disclosure provide a touch display panel including a first substrate and a plurality of touch sensors on a light incident side of the first substrate.
  • Each of the touch sensors includes a plurality of first metal wires arranged in parallel and a second metal wire group connecting the plurality of first metal wires, each of the touch sensors being connected to a touch detection circuit, the plurality of The first metal line constitutes a metal wire grid polarizer.
  • the touch display panel includes a plurality of pixel unit groups, each of the pixel unit groups including a plurality of pixel units arranged in a matrix, and an orthographic projection of each of the touch sensors on the first substrate and a corresponding one An orthographic projection of one of the groups of pixel cells on the first substrate overlaps.
  • the second metal wire group includes a plurality of second metal wires that are parallel to each other and perpendicular to the first metal wire; in each of the touch sensors, the first metal An orthographic projection of the arrangement area of the line on the first substrate overlaps with an orthographic projection of a corresponding one of the pixel unit groups on the first substrate, and an arrangement area of the second metal line is on the first substrate.
  • the orthographic projection on the upper side overlaps with the orthographic projection of the non-display area between the adjacent two or two columns of the pixel units in the corresponding one of the pixel unit groups on the first substrate.
  • an interval between two adjacent touch sensor groups corresponds to a non-display area between the pixel units.
  • a first metal line in each of the touch sensors is connected to the touch detection circuit through a metal lead.
  • a plurality of the touch sensors are disposed on a surface of the first substrate facing the light incident side.
  • the method further includes a second substrate disposed on the light incident side of the first substrate and parallel to the first substrate, wherein the plurality of touch sensors are disposed on the second substrate toward the first substrate On the side surface.
  • a light shielding layer is provided on the light incident side of the second substrate.
  • the first substrate and the second substrate are connected by a frame.
  • the second metal wire group includes a second metal wire, the second metal wire is perpendicular to the plurality of first metal wires, and the plurality of first metal wires
  • An orthographic projection of the arrangement area of the line on the first substrate overlaps with an orthographic projection of a corresponding one of the pixel unit groups on the first substrate, and an arrangement area of the second metal line is on the first substrate
  • the orthographic projection on the upper side overlaps with the orthographic projection of the non-display area between the adjacent two or two columns of the pixel units in the corresponding one of the pixel unit groups on the first substrate.
  • Embodiments of the present disclosure also provide a touch display screen including the above touch display panel.
  • the touch display screen further includes a backlight provided on a light incident side of the touch display panel.
  • An embodiment of the present disclosure further provides an electronic device including the above touch display screen.
  • FIG. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of a positional relationship between a touch sensor and a pixel unit in a corresponding pixel unit group according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram of positional relationship between two adjacent touch sensors and corresponding pixel unit groups according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a connection relationship between a touch sensor and a touch detection circuit according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another touch display panel according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram showing the working principle of a metal wire grid polarizer provided by an embodiment of the present disclosure.
  • Embodiments of the present disclosure provide a touch display panel having a simple structure and low cost, a touch display screen having the touch display panel, and an electronic device having the touch display screen.
  • the touch sensor is formed by a plurality of first metal and second metal groups, which is not only simple in structure, easy to prepare, and can realize a touch function.
  • the plurality of first metals are further capable of forming a metal wire grid polarizer serving as a lower polarizing plate of the touch display panel, and functioning to polarize the light entering side of the display panel, thereby eliminating the need for the light entering side of the touch display panel. Setting the lower polarizer greatly reduces the size of the touch display panel.
  • FIG. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • the touch display panel includes a first substrate 1 and a plurality of touch sensors 8 located on the light incident side of the first substrate 1.
  • the plurality of touch sensors 8 are connected to the touch detection circuit 12 (as shown in FIG. 4).
  • Each touch sensor 8 includes a plurality of first metal wires 2 arranged in parallel and a second metal wire group connecting the plurality of first metal wires 2.
  • the second wire set of each touch sensor 8 may comprise one or more second metal wires 3.
  • a plurality of first metal lines 2 may constitute a metal wire grid polarizer for use in touch display The light on the light-in side of the panel is polarized.
  • the plurality of first metals 8 form a metal wire grid polarizer serving as a lower polarizing plate of the touch display panel, and function to polarize the light entering side of the display panel, thereby entering the light on the touch display panel.
  • the side no longer needs to set the lower polarizer, which greatly reduces the size of the touch display panel and can also improve the transmittance.
  • FIG. 6 is a schematic diagram showing the working principle of a metal wire grid polarizer provided by an embodiment of the present disclosure.
  • a metal wire grid polarizer consists of a set of regularly arranged metal lines (for example, consisting of a horizontal first metal line 2); for an electromagnetic wave whose electric field direction is parallel to the metal line, the metal wire grid polarizer has high reflection, strong absorption The characteristics (for example, electromagnetic wave 250 is reflected or absorbed); for electromagnetic waves whose electric field direction is perpendicular to the metal line, the metal wire grid polarizer has high transmission and low absorption characteristics (for example, electromagnetic wave 260 is transmitted through the metal wire grid polarizer) .
  • the working principle of the metal wire grid polarizer makes the polarization effect of the metal wire grid polarizer less dependent on the wavelength and the incident angle, and can be applied to the broadband spectrum.
  • the touch display panel further includes an array substrate 22, a liquid crystal layer 30, and a color filter substrate 24.
  • the array substrate 22 includes a first substrate 1 and an array substrate member group 20.
  • the array substrate component group 20 includes a switching transistor, a pixel electrode, a common electrode, and other common components belonging to the array substrate, and the disclosure is not limited herein.
  • an upper polarizing plate 26 is further provided for polarizing the light on the light-emitting side of the touch display panel.
  • the touch display panel includes a plurality of pixel unit groups 14, each of which includes a plurality of pixel units 5 arranged in a matrix.
  • the touch display panel has a plurality of pixel units 5, which are divided into a plurality of pixel unit groups 14, each of which has a plurality of rows and a plurality of columns of pixel units 5.
  • the orthographic projection of each touch sensor 8 on the first substrate 1 overlaps with the orthographic projection of a corresponding one of the pixel unit groups 14 on the first substrate 1; that is, each touch sensor 8 is configured to sense a pixel unit group 14 touch operation in the area.
  • the system responds sensitively to the touch operation and improves the user experience, and each touch sensor 8 senses the touch.
  • the area should not be too large or too small; that is, the pixel unit 5 included in each pixel unit group 14 should not be too much or too small, and can be set according to the required touch precision.
  • the number of the pixel units 5 included in each pixel unit group 14 may be a fixed value or a change value, and may be adjusted according to actual application conditions. For example, the number of pixel units 5 included in different pixel unit groups 14 may be different.
  • the shape and structure of the second metal wire 3 and the direction of the arrangement are not unique, for example, a fold line type or the like, as long as the plurality of first metal wires 2 can be electrically connected, and can cooperate with the first metal wire 2 to complete the sensing and recognizing the touch operation.
  • the function is fine.
  • FIG. 2 is a schematic diagram showing the positional relationship between the touch sensor and the pixel unit 5 in the corresponding pixel unit group in the embodiment of the present disclosure.
  • the second metal wire group includes a plurality of second metal wires 3, and the plurality of second metal wires 3 may be disposed in parallel with each other and perpendicular to the first metal wires 2, that is, the first metal wires 2 and The second metal wires 3 are combined to form a grid shape (which may be a regular grid shape or an irregular grid shape).
  • an arrangement area of the first metal lines 2 in each of the touch sensors 8 may be aligned with a corresponding one of the pixel unit groups 14.
  • a plurality of first metal lines 2 in the same touch sensor 8 are divided into a plurality of groups; an arrangement area of each set of first metal lines 2 is aligned with a column or row of pixel units 5, that is, the set of first metal lines 2
  • the orthographic projection of the area of the arrangement on the first substrate 1 overlaps with the orthographic projection of the area of the column or row of pixel units 5 on the first substrate 1. As shown in FIG.
  • the plurality of first metal lines 2 in the same touch sensor 8 are divided into a first group of first metal lines 201 and a second group of first metal lines 202; an arrangement area of the first group of first metal lines 201
  • the orthographic projection on the first substrate 1 overlaps with the orthographic projection of the first column of pixel units 5 on the first substrate 1; the orthographic projection of the arrangement region of the second group of first metal lines 202 on the first substrate 1 and the second The orthographic projections of the column pixel units 5 on the first substrate 1 overlap.
  • each pixel unit group 14 may include an equal number of pixel units 5, and a plurality of first metal lines 2 (in FIG. 2) in each touch sensor 8 are vertically disposed and divided into groups.
  • the arrangement areas of each set of first metal lines 2 are respectively aligned with a column of pixel units 5.
  • An arrangement area of the second metal line 3 ie, the second metal line 3 in the second metal line group of each touch sensor 8) is located between the adjacent two or two columns of pixel units 5 in the pixel unit group 14. Non-display area alignment.
  • the orthographic projection of the arrangement area of the second metal line 3 on the first substrate 1 overlaps with the orthographic projection of the non-display area between the adjacent two or two columns of pixel units 5 on the first substrate 1 to avoid
  • the second metal line 3 affects the polarizing effect of the first metal line 2 and the display effect of the pixel unit 5.
  • the second metal line 3 in the embodiment shown in FIG. 2 is disposed laterally between two adjacent rows of pixel units 5 of each touch sensor 8.
  • the second metal wire group includes a plurality of second metal wires 3, and the plurality of second metal wires 3 and the plurality of first metal wires 2 are perpendicular to each other
  • An orthographic projection of the arrangement area of the plurality of second metal lines 3 on the first substrate 1 The orthogonal projection on the first substrate 1 overlaps with the non-display area between the adjacent two rows of the pixel units 5 in the corresponding one pixel unit group 14.
  • the number of the second metal wires 3 located between the adjacent two rows of pixel units 5 may be one or more, as the case may be.
  • the second metal wire group includes a second metal wire, the second metal wire is perpendicular to the plurality of first metal wires, and the plurality of first metal wires
  • An orthographic projection of the arrangement area of the line on the first substrate overlaps with an orthographic projection of a corresponding one of the pixel unit groups on the first substrate, and an arrangement area of the second metal line is on the first substrate
  • the orthographic projection on the upper side overlaps with the orthographic projection of the non-display area between the adjacent two or two columns of the pixel units in the corresponding one of the pixel unit groups on the first substrate.
  • FIG. 3 is a schematic diagram showing the positional relationship between two adjacent touch sensors and corresponding two adjacent pixel unit groups 14 in the embodiment of the present disclosure.
  • no metal lines are disposed at intervals between two adjacent touch sensors 8, and the interval is aligned with the non-display area between the two pixel unit groups 14 to implement touch and polarization. While ensuring the display of the pixel unit.
  • the orthogonal projection between the adjacent two touch sensors 8 at the first substrate 1 and the non-display region between the two pixel unit groups 14 overlap at the orthographic projection of the first substrate 1.
  • FIG. 4 is a schematic diagram showing the connection relationship between the touch sensor and the touch detection circuit 12 in the embodiment of the present disclosure.
  • the touch detection circuit 12 can be an integrated circuit.
  • the touch detection circuit 12 is configured to perform touch detection according to the signal sensed by each touch sensor 8. As shown in FIG. 4, each of the second metal wires 3 of each touch sensor 8 is connected with a metal lead 4, and each metal lead 4 is electrically connected to the touch detection circuit 12 (for ease of illustration of each metal lead 4, in FIG. 4
  • the spacing between the two columns of touch sensors 8 is enlarged, that is, the spacing between the touch sensors 8 in FIG. 4 is only illustrative and is not a limitation of the actual spacing between the touch sensors 8 to achieve touch
  • the detection circuit 12 accurately measures the touch sensor 8.
  • the setting form of the touch sensor 8 may be different. The following is described in detail by two examples:
  • the phone case usually has a metal middle frame 6.
  • a plurality of touch sensors 8 in the touch display panel of the embodiment of the present disclosure may be disposed on a surface of the first substrate 1 facing the light incident side.
  • FIG. 5 is a schematic structural diagram of another touch display panel according to an embodiment of the present disclosure.
  • the touch display panel of the embodiment of the present disclosure is applied to an electronic device such as a mobile phone or other electronic device without a frame will be described with reference to FIG. 5 .
  • the second substrate 7 parallel to the first substrate 1 may be disposed on the light incident side of the first substrate 1, and an elastic spacer may be disposed between the first substrate 1 and the second substrate 7. 9 (for example, a rubber elastic pad), the first substrate 1 and the second substrate 7 are connected in a frame-fitting manner so that the intermediate portions of the first substrate 1 and the second substrate 7 can be relatively moved, and are not easily generated. Dislocation deformation.
  • a plurality of touch sensors 8 may be provided on a surface of the second substrate 7 facing the side of the first substrate 1.
  • the distance between the first substrate 1 and the second substrate 7 is changed, and the distance between the touch sensor 8 and the common electrode 11 changes.
  • the capacitance between the touch sensor 8 and the common electrode 11 is changed, and the touch detection circuit 12 measures the touch position and/or the touch pressure by detecting the changed capacitance value to respond to the touch operation of the user.
  • a signal shielding layer 10 (such as ITO) may be disposed on the light incident side of the second substrate 7. Shield).
  • the touch display panel further includes an array substrate 22, a liquid crystal layer 30, and a color filter substrate 24.
  • the array substrate 22 includes a first substrate 1, an array substrate member group 21, and a common electrode 11.
  • the array substrate component group 21 includes switching transistors, pixel electrodes, and other common components belonging to the array substrate (but not including the common electrode).
  • the present disclosure does not limit the composition of the array substrate component group 21 herein.
  • an upper polarizing plate 26 is further provided for polarizing the light on the light-emitting side of the touch display panel.
  • the embodiment of the present disclosure further provides a touch display screen comprising the touch display panel of any of the above embodiments.
  • the touch screen of the embodiment of the present disclosure can have a small size while being capable of ensuring touch performance, polarization performance, and display performance.
  • the embodiment of the present disclosure further provides a touch display screen comprising the touch display panel of any of the above embodiments and a backlight 13 disposed on the light incident side of the touch display panel, the backlight board
  • the setting position can be seen in Figures 1 and 5.
  • a backlight 13 may be disposed outside the signal shielding layer 10; or, in FIG. 1, a backlight 13 may be disposed between the touch sensor 8 and the metal middle frame 6.
  • the touch screen of the embodiment of the present disclosure can have a small size while being capable of ensuring touch performance, polarization performance, and display performance.
  • Embodiments of the present disclosure also provide an electronic device including any of the touch display screens described above.
  • the electronic device of the embodiment of the present disclosure can have a small size while being capable of ensuring touch performance, polarization performance, and display performance.
  • relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying between these entities or operations. There are any such actual relationships or sequences.
  • the term “comprises” or “comprises” or “comprises” or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device.
  • An element that is defined by the phrase “comprising a " does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触摸显示面板、触摸屏和电子设备。该触摸显示面板包括第一基板(1)和位于所述第一基板(1)入光侧的多个触摸传感器(8)。每个所述触摸传感器(8)包括平行设置的多根第一金属线(2)和连接多根所述第一金属线(2)的第二金属线组，每个所述触摸传感器(8)与触控检测电路(12)相连，所述多根第一金属线(2)构成金属线栅偏振器。

Description

触摸显示面板及触摸显示屏、电子设备 技术领域
本公开涉及一种触摸显示面板及触摸显示屏、电子设备。
背景技术
触摸屏(touch screen)又称为“触控屏”、“触控面板”，是一种可接收触头等输入讯号的感应式液晶显示装置。当屏幕上的图形按钮被触摸时，屏幕上的触摸反馈***可根据预先编程的程式驱动各种连接装置，可用以取代机械式的按钮面板，并借由液晶显示画面制造出生动的影音效果。触摸屏作为一种电脑输入设备，是目前的一种简单、方便、自然的人机交互方式。触摸屏可以应用于各种电子设备。
现有技术中的触摸屏中的触摸传感器一般会占用较大的安装空间，使得触摸屏外形不够纤薄，影响美观。
发明内容
本公开实施例提供一种触摸显示面板，包括第一基板以及位于所述第一基板入光侧的多个触摸传感器。每个所述触摸传感器包括平行设置的多根第一金属线和连接多根所述第一金属线的第二金属线组，每个所述触摸传感器与触控检测电路相连，所述多根第一金属线构成金属线栅偏振器。
例如，所述触摸显示面板包括多个像素单元组，每个所述像素单元组包括成矩阵排列的多个像素单元，每个所述触摸传感器在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠。
例如，所述第二金属线组包括多根第二金属线，所述多根第二金属线相互平行，并与所述第一金属线垂直；在每个所述触摸传感器中，第一金属线的布置区域在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠，所述第二金属线的布置区域在所述第一基板上的正投影与对应的所述一个像素单元组中位于相邻的两排或两列所述像素单元间的非显示区域在所述第一基板上的正投影重叠。
例如，相邻的两个所述触摸传感器组间的间隔处对应于所述像素单元间的非显示区域。
例如，各所述触摸传感器中的第一金属线通过金属引线与所述触控检测电路相连。
例如，多个所述触摸传感器设置在所述第一基板朝向入光侧的表面上。
例如，还包括设于所述第一基板的入光侧并与所述第一基板相平行的第二基板，多个所述触摸传感器设于所述第二基板朝向所述第一基板的一侧表面上。
例如，所述第二基板的入光侧设有信号屏蔽层。
例如，所述第一基板与所述第二基板间采用框贴的方式进行连接。
例如，在每个所述触摸传感器中：所述第二金属线组包括一根第二金属线，所述第二金属线与所述多根第一金属线垂直，所述多根第一金属线的布置区域在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠，所述第二金属线的布置区域在所述第一基板上的正投影与对应的所述一个像素单元组中位于相邻的两排或两列所述像素单元间的非显示区域在所述第一基板上的正投影重叠。
本公开实施例还提供一种触摸显示屏，包括上述触摸显示面板。
例如，所述触摸显示屏还包括设于所述触摸显示面板的入光侧的背光板。
本公开实施例还提供一种电子设备，包括上述触摸显示屏。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术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公开的一些实施例，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为本公开实施例提供的一种触摸显示面板的结构示意图。
图2为本公开实施例提供的触摸传感器与对应的像素单元组中的像素单元的位置关系示意图。
图3为本公开实施例提供的相邻两个触摸传感器与对应的像素单元组的位置关系示意图。
图4为本公开实施例提供的的触摸传感器与触控检测电路的连接关系示意图。
图5为本公开实施例提供的另一种触摸显示面板的结构示意图。
图6示出了本公开实施例提供的金属线栅偏振器的工作原理示意图。
附图标记：
1-第一基板；2-第一金属线；3-第二金属线；4-金属引线；5-像素单元；6-金属中框；7-第二基板；8-触摸传感器；9-弹性间隔物；10-信号屏蔽层；11-公共电极；12-触控检测电路；13-背光板；14-像素单元组；20-第一阵列基板部件组；21-第二阵列基板部件组；22-阵列基板；24-彩膜基板；26-上偏光板；液晶层30；201-第一组第一金属线；202-第二组第一金属线。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅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，都属于本公开保护的范围。
本公开实施例提供一种结构简单、成本低的触摸显示面板和具有该触摸显示面板的触摸显示屏以及具有该触摸显示屏的电子设备。在本公开实施例中，触摸传感器由多根第一金属和第二金属组形成，不仅结构简单，易于制备，可实现触控功能。而且，所述多根第一金属还能够形成充当触摸显示面板的下偏光板的金属线栅偏振器，起到触摸显示面板入光侧的偏光作用，从而在触摸显示面板入光侧不再需要设置下偏光片，在很大程度上减小了触摸显示面板的尺寸。
以下结合附图对本公开的实施例进行详细描述。
图1为本公开实施例提供的一种触摸显示面板的结构示意图。如图1所示，触摸显示面板包括第一基板1和位于第一基板1入光侧的多个触摸传感器8。该多个触摸传感器8与触控检测电路12相连(如图4所示)。每个触摸传感器8包括平行设置的多根第一金属线2和连接该多根第一金属线2的第二金属线组。例如每个触摸传感器8的第二金属线组可以包括一或多根第二金属线3。多根第一金属线2可以构成金属线栅偏振器，以用于对触摸显 示面板入光侧的光线进行偏光作用。
在本公开实施例中，所述多根第一金属8形成充当触摸显示面板的下偏光板的金属线栅偏振器，起到触摸显示面板入光侧的偏光作用，从而在触摸显示面板入光侧不再需要设置下偏光片，在很大程度上减小了触摸显示面板的尺寸，还可以提升透过率。
图6示出了本公开实施例提供的金属线栅偏振器的工作原理示意图。金属线栅偏振器由一组规则排列的金属线组成(例如，由水平的第一金属线2组成)；对于电场方向平行于金属线的电磁波，该金属线栅偏振器具有高反射、强吸收的特点(例如，电磁波250被反射或吸收)；对于电场方向垂直于金属线的电磁波，该金属线栅偏振器具有高透射、低吸收的特点(例如，电磁波260透过金属线栅偏振器)。金属线栅偏振器的工作原理使得金属线栅偏振器的偏振效果对波长以及入射角的依赖较小，可以应用于宽带频谱。
例如，如图1所示，所述触摸显示面板还包括阵列基板22、液晶层30和彩膜基板24。阵列基板22包括第一基板1和阵列基板部件组20。例如，阵列基板部件组20包括开关晶体管、像素电极、公共电极和其他常见的属于阵列基板的部件，本公开在此不作限定。在彩膜基板24之上，还设置有上偏光板26，以用于对触摸显示面板出光侧的光线进行偏光作用。
进一步地，触摸显示面板包括多个像素单元组14，每个像素单元组14包括成矩阵排列的多个像素单元5。例如，触摸显示面板具有多个像素单元5，该多个像素单元5被划分为多个像素单元组14，每个像素单元组14具有多排及多列像素单元5。每个触摸传感器8在第一基板1上的正投影与对应的一个像素单元组14在第一基板1上的正投影重叠；也就是，每个触摸传感器8被配置为感测一像素单元组14所在区域的触控操作。而为了有效保证触摸显示面板能够快速精准的识别出触控点和/或触控压力，使***针对该触控操作灵敏的做出响应，提高用户体验，每个触摸传感器8感测触控的区域不宜过大也不宜过小；也就是，各像素单元组14包含的像素单元5不宜过多也不宜过少，具体可根据所要求的触控精度进行设定。另外，各像素单元组14中包含的像素单元5的个数可为固定值也可为变化值，具体可根据实际应用情况而相应调整。例如，不同像素单元组14包含的像素单元5的个数可以不相同。
第二金属线3的形状结构以及设置方向不唯一，例如为折线型等，只要能够将多根第一金属线2电性连接，并能够与第一金属线2配合完成感测识别触控操作的功能即可。
图2为本公开实施例中触摸传感器与对应的像素单元组中的像素单元5的位置关系示意图。如图2所示，第二金属线组包括多根第二金属线3，多根第二金属线3可以相互平行设置，并与第一金属线2垂直，也就是，第一金属线2与第二金属线3配合形成网格状(可为规则的网格状，也可为不规则的网格状)。
在本公开实施例中，每个触摸传感器8中的第一金属线2的布置区域可以与对应的一个像素单元组14对准。例如，同一触摸传感器8中的多根第一金属线2分为多组；每组第一金属线2的布置区域与一列或一行像素单元5对准，即，该组第一金属线2所布置的区域在第一基板1上的正投影与该列或该行像素单元5所布置的区域在第一基板1上的正投影重叠。如图2所示，同一触摸传感器8中的多根第一金属线2分为第一组第一金属线201和第二组第一金属线202；第一组第一金属线201的布置区域在第一基板1上的正投影与第一列像素单元5在第一基板1上的正投影重叠；第二组第一金属线202的布置区域在第一基板1上的正投影与第二列像素单元5在第一基板1上的正投影重叠。
继续结合图2所示，各像素单元组14可以包含有同等个数的像素单元5，各触摸传感器8中的多根第一金属线2(在图2中)纵向设置，且分为多组，每组第一金属线2的布置区域分别与一列像素单元5对准。第二金属线3(即，每个触摸传感器8的第二金属线组中的第二金属线3)的布置区域与像素单元组14中位于相邻的两排或两列像素单元5间的非显示区域对准。也就是，第二金属线3的布置区域在第一基板1上的正投影与相邻的两排或两列像素单元5间的非显示区域在第一基板1上的正投影重叠，以避免第二金属线3影响第一金属线2的偏光效果以及像素单元5的显示效果。
图2所示实施例中的第二金属线3横向设于各触摸传感器8中相邻的两排像素单元5间。例如，在图2所示的一个触摸传感器中，所述第二金属线组包括多根第二金属线3，所述多根第二金属线3与所述多根第一金属线2相互垂直，所述多根第二金属线3的布置区域在所述第一基板1上的正投影 与对应的一个像素单元组14中位于相邻的两排所述像素单元5间的非显示区域在所述第一基板1上的正投影重叠。位于相邻两排像素单元5间的第二金属线3数量可以为一根或多根，可视具体情况而定。
例如，在每个所述触摸传感器中：所述第二金属线组包括一根第二金属线，所述第二金属线与所述多根第一金属线垂直，所述多根第一金属线的布置区域在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠，所述第二金属线的布置区域在所述第一基板上的正投影与对应的所述一个像素单元组中位于相邻的两排或两列所述像素单元间的非显示区域在所述第一基板上的正投影重叠。
图3为本公开实施例中相邻两个触摸传感器与对应的相邻两个像素单元组14的位置关系示意图。如图3所示，相邻的两个触摸传感器8间的间隔处不设置任何金属线，且该间隔处与两个像素单元组14间的非显示区域对准，以在实现触控和偏光的同时确保像素单元的显示效果。例如，该相邻的两个触摸传感器8间的间隔处在第一基板1的正投影和位于该两个像素单元组14之间的非显示区域在第一基板1的正投影重叠。
图4为本公开实施例中的触摸传感器与触控检测电路12的连接关系示意图。触控检测电路12可以为集成电路。触控检测电路12被配置根据各触摸传感器8感测到的信号进行触控检测。如图4所示，各触摸传感器8中的各第二金属线3连有金属引线4，各金属引线4与触控检测电路12电气相连(为便于图示出各金属引线4，图4中放大了两列触摸传感器8之间的间距，也就是，图4中各触摸传感器8之间的间距仅为示意性的，并不作为各触摸传感器8之间实际间距的限制)，以实现触控检测电路12对触摸传感器8的精确测定。
进一步地，触摸显示面板应用在不同的电子设备上时，触摸传感器8的设置形式可以不同,以下通过两个例子进行详细说明:
示例一:
结合图1，说明将本公开实施例的触摸显示面板应用于手机上时的情况。手机外壳通常具有金属中框6。本公开实施例的触摸显示面板中的多个触摸传感器8可设置在第一基板1的朝向入光侧的表面上。当用户向触摸显示面板进行触控操作时，第一基板1与金属中框6间的间距发生变化，也就是触 摸传感器8与金属中框6间的间距发生变化，进而使得触摸传感器8与金属中框6间的电容产生变化，触控检测电路12通过检测变化的电容值来测定触控位置和/或触控压力，并对用户的触控操作进行响应。
示例二：
图5为本公开实施例的另一触摸显示面板的结构示意图。结合图5对将本公开实施例的触摸显示面板应用于手机等电子设备或其他无中框的电子设备上时的情况进行说明。在本公开实施例中，可在第一基板1的入光侧设置与第一基板1相平行的第二基板7，并将第一基板1与第二基板7间设置弹性间隔物(spacer)9(例如，胶弹垫)，采用框贴的方式对第一基板1和第二基板7进行连接，以使第一基板1与第二基板7的中间部分能够相对移动，同时不易产生较大的错位形变。多个触摸传感器8可以设于第二基板7的朝向第一基板1的一侧的表面上。当用户向触摸显示面板进行触控操作时，第一基板1向第二基板7移动使其与第二基板7间的间距发生变化，此时，触摸传感器8与公共电极11间的间距发生变化，进而使得触摸传感器8与公共电极11间的电容产生变化，触控检测电路12通过检测变化的电容值测定触控位置和/或触控压力，以对用户的触控操作进行响应。
在本公开图5所示的实施例中，为了避免第二基板7下方的电子信号对触摸传感器8的感测造成影响，可在第二基板7的入光侧设置信号屏蔽层10(如ITO屏蔽层)。
例如，如图5所示，所述触摸显示面板还包括阵列基板22、液晶层30和彩膜基板24。阵列基板22包括第一基板1、阵列基板部件组21和公共电极11。例如，阵列基板部件组21包括开关晶体管、像素电极和其他常见的属于阵列基板的部件(但不包括公共电极)。本公开在此不对阵列基板部件组21的组成作限定。在彩膜基板24之上，还设置有上偏光板26，以用于对触摸显示面板出光侧的光线进行偏光作用。
本公开实施例还提供一种触摸显示屏，该触摸显示屏包括上述任一实施例的触摸显示面板。通过包括上述触摸显示面板，本公开实施例的触摸屏能够具有较小的尺寸，同时能够确保触控性能、偏光性能以及显示性能。
本公开实施例还提供了一种触摸显示屏，该触摸显示屏包括上述任一实施例的触摸显示面板以及设于触摸显示面板的入光侧的背光板13，该背光板 的设置位置可参见图1和图5所示。例如，图5中，在信号屏蔽层10的外侧可以设置背光板13；或者，图1中，在触摸传感器8和金属中框6之间可以设置背光板13。通过包括上述触摸显示面板，本公开实施例的触摸屏能够具有较小的尺寸，同时能够确保触控性能、偏光性能以及显示性能。
本公开实施例还提供一种电子设备，其包括上述的任一种触摸显示屏。通过包括上述触摸显示面板，本公开实施例的电子设备能够具有较小的尺寸，同时能够确保触控性能、偏光性能以及显示性能。
需要指出的是，在附图中，为了图示的清晰可能夸大了层和区域的尺寸。而且可以理解，当元件或层被称为在另一元件或层“上”时，它可以直接在其他元件上，或者可以存在中间的层。另外，可以理解，当元件或层被称为在另一元件或层“下”时，它可以直接在其他元件下，或者可以存在一个以上的中间的层或元件。另外，还可以理解，当层或元件被称为在两层或两个元件“之间”时，它可以为两层或两个元件之间惟一的层，或还可以存在一个以上的中间层或元件。通篇相似的参考标记指示相似的元件。
而且，在本公开中，诸如“第一”和“第二”等关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，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、物品或者设备不仅包括那些要素，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、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上实施例仅为本公开的示例性实施例，不用于限制本公开，本公开的保护范围由权利要求书限定。本领域技术人员可以在本公开的实质和保护范围内，对本公开做出各种修改或等同替换，这种修改或等同替换也应视为落在本公开的保护范围内。
本公开要求于2017年5月16日递交的中国专利申请第201710342741.1号的优先权，在此全文引用上述中国专利申请公开的内容以作为本公开的一部分。

Claims (13)

  1. 一种触摸显示面板，包括：
    第一基板；以及
    位于所述第一基板入光侧的多个触摸传感器，
    其中，每个所述触摸传感器包括平行设置的多根第一金属线和连接多根所述第一金属线的第二金属线组，每个所述触摸传感器与触控检测电路相连，以及所述多根第一金属线构成金属线栅偏振器。
  2. 根据权利要求1所述的触摸显示面板，其中，所述触摸显示面板包括多个像素单元组，每个所述像素单元组包括成矩阵排列的多个像素单元，每个所述触摸传感器在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠。
  3. 根据权利要求2所述的触摸显示面板，其中，在每个所述触摸传感器中：
    所述第二金属线组包括多根第二金属线，所述多根第二金属线相互平行，并与所述第一金属线垂直；所述多根第一金属线的布置区域在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠，所述多根第二金属线的布置区域在所述第一基板上的正投影与对应的所述一个像素单元组中位于相邻的两排或两列所述像素单元间的非显示区域在所述第一基板上的正投影重叠。
  4. 根据权利要求2所述的触摸显示面板，其中，在每个所述触摸传感器中：
    所述第二金属线组包括一根第二金属线，所述第二金属线与所述多根第一金属线垂直，所述多根第一金属线的布置区域在所述第一基板上的正投影与对应的一个所述像素单元组在所述第一基板上的正投影重叠，所述第二金属线的布置区域在所述第一基板上的正投影与对应的所述一个像素单元组中位于相邻的两排或两列所述像素单元间的非显示区域在所述第一基板上的正投影重叠。
  5. 根据权利要求2-4任一项所述的触摸显示面板，其中，相邻的两个所述触摸传感器间的间隔处对应于所述像素单元组间的非显示区域。
  6. 根据权利要求1-5中任一项所述的触摸显示面板，其中，各所述触摸传感器中的第一金属线通过金属引线与所述触控检测电路相连。
  7. 根据权利要求1-5中任一项所述的触摸显示面板，其中，多个所述触摸传感器设置在所述第一基板朝向入光侧的表面上。
  8. 根据权利要求1-5中任一项所述的触摸显示面板，还包括设于所述第一基板的入光侧并与所述第一基板相平行的第二基板，其中，多个所述触摸传感器设于所述第二基板朝向所述第一基板的一侧表面上。
  9. 根据权利要求8所述的触摸显示面板，其中，所述第二基板的入光侧设有信号屏蔽层。
  10. 根据权利要求9所述的触摸显示面板，其中，所述第一基板与所述第二基板间采用框贴的方式进行连接。
  11. 一种触摸显示屏，包括如权利要求1-10中任一项所述的触摸显示面板。
  12. 根据权利要求11所述的触摸显示屏，还包括设于所述触摸显示面板的入光侧的背光板。
  13. 一种电子设备，包括如权利要求11或12中所述的触摸显示屏。
PCT/CN2017/110383 2017-05-16 2017-11-10 触摸显示面板及触摸显示屏、电子设备 WO2018209905A1 (zh)

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