WO2017059748A1 - 电子纸触摸屏及其控制方法、显示装置 - Google Patents
电子纸触摸屏及其控制方法、显示装置 Download PDFInfo
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- WO2017059748A1 WO2017059748A1 PCT/CN2016/096463 CN2016096463W WO2017059748A1 WO 2017059748 A1 WO2017059748 A1 WO 2017059748A1 CN 2016096463 W CN2016096463 W CN 2016096463W WO 2017059748 A1 WO2017059748 A1 WO 2017059748A1
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
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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
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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
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- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- 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
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- 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
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
- G02F1/1681—Gaskets; Spacers; Sealing of cells; Filling or closing of cells having two or more microcells partitioned by walls, e.g. of microcup type
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
Definitions
- the present disclosure relates to the field of display technologies, and in particular, to an electronic paper touch screen and a control method thereof.
- E-paper has the characteristics of low power consumption, low cost, flexible display, and conforming to people's reading habits. At the same time, it is more and more widely used, compared with paper, easy to carry, large storage capacity and environmental protection. With the rapid rise and development of smart phones and smart wearable devices, people are increasingly demanding touch experiences.
- the current touch screen of electronic paper mainly adopts an external connection mode, has high power consumption, increases the thickness of the touch screen, and has no cost advantage.
- the electronic paper display device mostly uses an electronic pen as the input device of the display, and a wire and an electronic paper are connected at the end of the pen, which is extremely inconvenient to write, and the contact of the pen tip portion with the electronic paper is likely to cause scratching of the electronic paper during the writing process.
- the touch result often has the disadvantage of pincushion distortion, and the thickness of the electronic paper is relatively thick, which affects the light transmittance of the electronic paper display device.
- An object of the present disclosure is to provide an electronic paper touch screen structure and a display device, which have a simple structure, can simplify the process, achieve thinning, and improve light transmittance.
- an embodiment of the present disclosure provides an electronic paper touch screen including: a first substrate formed with a first electrode layer and a second substrate formed with a second electrode layer; and a first electrode layer and a first electrode layer An electronic ink layer between the two electrode layers; the second electrode layer on the second substrate comprises a plurality of electrode units disposed independently of each other, and each of the electrode units is separately connected with a signal line, and the signal line is used for During the touch period, a touch signal is input to the electrode unit, and a display signal is input to the electrode unit during the display period.
- the second substrate comprises a plurality of pixel units, and each of the electrode units is disposed corresponding to at least one pixel unit.
- the second electrode layer comprises a plurality of electrode blocks, each of the electrode blocks and at least one The pixel units are correspondingly disposed, and a plurality of the electrode blocks constitute one of the electrode units, wherein the electrode blocks in the same electrode unit are connected, and the electrode blocks between the different electrode units are disposed independently of each other.
- the pixel unit is disposed in one-to-one correspondence with the electrode block.
- the number of electrode blocks included in each of the electrode units is the same.
- the second substrate is an array substrate.
- the first substrate is a PET substrate.
- microcapsules are distributed in the electronic ink layer.
- the microcapsule is encapsulated with at least one quantum dot for displaying a color.
- the electronic ink layer may further include a plurality of micro cups or a plurality of rotating balls.
- the first electrode layer is a transparent electrode layer
- the second electrode layer is a common electrode layer
- the signal line is used to input a common electrode signal to the electrode unit during the display period.
- the embodiment of the present disclosure further provides a method for controlling an electronic paper touch screen as described above, the method comprising: inputting a touch signal to each electrode unit in the second electrode layer during a touch time period; A display signal is input to each of the electrode units in the second electrode layer during the display period.
- embodiments of the present disclosure also provide a display device including the electronic paper touch screen as described above.
- the electronic paper touch screen provided by the present disclosure divides the second electrode layer on the second substrate into a plurality of independent electrode units, and each electrode unit is respectively connected to one signal line.
- the time-division driving method is adopted, and each electrode unit is respectively provided with a touch signal and a display signal at different time intervals, thereby realizing that the display electrode and the touch electrode share the carrier, thereby reducing the thickness of the entire device and being thinner and lighter.
- the reduction in thickness can also limit the speed of light propagation and increase the transmittance.
- the display electrode and the touch electrode share the carrier, which does not increase the process, and can provide the user with a low-cost, reliable electronic paper touch experience.
- 1 is a schematic cross-sectional view showing an electronic paper touch screen
- FIG. 2 is a schematic view showing a pixel structure of a TFT substrate of an electronic paper touch screen
- FIG. 3 is a schematic cross-sectional view showing an electronic paper touch screen provided in an embodiment of the present disclosure
- FIG. 4 is a schematic diagram showing the pixel structure on a TFT substrate of an electronic paper touch screen provided by an embodiment of the present disclosure. Figure.
- a technique that does not rely on an electronic pen is proposed.
- the deflection of the microcapsules 30 is achieved by the control of the common electrode 11 on the TFT substrate 10 and the transparent electrode 21 on the upper substrate 20, thereby completing the display.
- An ITO (Indium Tin Oxide) electrode 40 is deposited on the upper substrate 20 on the electronic paper, and electrode traces 41 are connected to the driving IC terminals at the four corners.
- the touch position is determined by testing the four angular current differences.
- the method can reduce the thickness of the display device and has a good touch experience, but still has a complicated process, and the touch result has the disadvantage of pincushion distortion, and the thickness of the electronic paper is relatively thick, affecting The electronic paper displays the light transmittance of the device.
- the present disclosure provides an electronic paper touch screen, which has a simple structure, can simplify the process, achieve thin and light, and improve light transmittance.
- the electronic paper touch screen provided by the present disclosure includes: a first substrate 100 formed with a first electrode layer 101; a second substrate 200 formed with a second electrode layer 201; The electronic ink layer 300 between the first electrode layer 101 and the second electrode layer 201 is described. among them,
- the second electrode layer 201 on the second substrate 200 includes a plurality of electrode units disposed independently of each other, and each of the electrode units is separately connected to a signal line, and the signal line is used to The electrode unit inputs a touch signal, and inputs a display signal to the electrode unit during a display period.
- the electronic paper touch screen provided by the present disclosure is a self-contained electronic paper touch screen, which is a self-contained metal electrode that is used to implement a touch function, and is used as a display electrode for realizing a display function.
- the touch signal and the display signal can be respectively provided to the metal electrodes as the display electrodes and the touch electrodes at different time periods, thereby realizing display and touch functions.
- the electronic paper touch screen provided by the present disclosure divides the second electrode layer 201 disposed on the second substrate 200 into a plurality of electrode units independent of each other.
- a plurality of electrode units are arranged in a matrix on the second substrate 200, and each of the electrode units is respectively connected with a signal line, and a time-sharing driving method is adopted.
- each electrode unit accesses the display signal through the signal line, and The charge is stored; at the touch time, the change in capacitance of each of the electrode units is scanned through the signal line to determine the touch position.
- the thickness of the entire device can be reduced, and the thickness is further reduced.
- the reduction in thickness can also limit the speed of light propagation and increase the transmittance.
- the display electrode and the touch electrode share the carrier, and the display electrode and the touch electrode can be formed by the same patterning process, and the process process is not increased, and the user can provide low cost. A reliable electronic paper touch experience.
- the second substrate 200 includes a plurality of pixel units, and each of the electrode units is disposed corresponding to at least one pixel unit.
- each electrode unit may be designed to correspond to at least one pixel unit, for example, each electrode unit may correspond to two or more pixel units.
- the second electrode layer 201 includes a plurality of electrode blocks 2010 distributed in a matrix, and each of the electrode blocks 2010 corresponds to one pixel unit. It is provided that a plurality of the electrode blocks 2010 constitute one of the electrode units, and the electrode blocks 2010 in the same electrode unit are connected, and the electrode blocks 2010 between the different electrode units are disposed independently of each other.
- each pixel unit is set corresponding to one electrode block 2010.
- the electrode blocks 2010 in the same electrode unit are connected to each other, and a touch signal or a display signal can be provided on each electrode block 2010 in the same electrode unit through one scan line; and the electrode blocks 2010 between different electrode units are independently set. . That is, the electrode blocks 2010 between the different electrode units are not connected, so that when the touch signals are supplied to the electrode blocks 2010 of the respective electrode units, the capacitance changes of the electrode blocks 2010 in the electrode units at different positions can be determined. Touch location.
- the display electrode of the display area is divided into a plurality of electrode units, and the signal lines are respectively led to be connected to the driving IC terminal.
- the display electrodes of the display area in the present disclosure can provide different display signals to different electrode units according to the algorithm of the driving IC end, thereby achieving the purpose of partition display.
- each of the electrode blocks 2010 may be disposed corresponding to a plurality of pixel electrodes.
- other implementation manners may be used for the correspondence between the electrode block 2010 and the pixel electrodes. There are no restrictions.
- the number of electrode blocks 2010 included in each of the electrode units is the same. It should be understood that the specific number of electrode blocks 2010 within each electrode unit is not limited herein.
- microcapsules are distributed in the electronic ink layer 300.
- the microcapsules are encapsulated with at least one quantum dot that can be used to display a color, or the electronic ink layer 300 can further comprise a plurality of microcups or a plurality of rotating balls.
- the first electrode layer 101 is a transparent electrode layer
- the second electrode layer 201 is a common electrode layer
- the signal line is used in the A time period is displayed, and a common electrode signal is input to the electrode unit.
- the second electrode layer 201 may not be used as a common electrode in a special application, but may be a display electrode for realizing a display function.
- the electronic paper touch screen provided by the present disclosure may be an active matrix type electronic paper, wherein the first substrate 100 may be a PET substrate, and the second substrate 200 may be a TFT array substrate.
- the first substrate 100 may be a PET substrate
- the second substrate 200 may be a TFT array substrate.
- it can also be other types of electronic paper touch screens.
- the electronic paper touch screen provided by the present disclosure is taken as an example of an active matrix type electronic paper, and the electronic paper touch screen provided by the present disclosure is compared with the active matrix type electronic paper shown in FIG. 1 .
- the optional embodiment is described in detail.
- FIG. 1 is a schematic cross-sectional view showing an active matrix type electronic paper
- FIG. 2 is a schematic view showing a pixel structure of the active matrix type electronic paper according to FIG.
- the active matrix type electronic paper shown in FIG. 1 includes an upper substrate 20 and a lower substrate 10 which are disposed opposite to each other, and an electronic ink layer 30 disposed between the upper substrate 20 and the lower substrate 10.
- the upper substrate 20 is provided with a transparent electrode layer 21, a protective layer (not shown in FIG. 1), a touch electrode 41, an insulating ink layer 42, and the like.
- the transparent electrode layer 21 may be an indium tin oxide layer (ITO layer). As shown in FIG.
- a plurality of pixel units distributed in a matrix and a data line 11c and a scan line 11d are arranged on the lower substrate 10, and each of the pixel units is provided with a metal electrode block.
- 11a wherein the metal electrode blocks 11a corresponding to the adjacent pixel units are connected by the metal wires 11b to form the common electrode 11, and are connected to the common signal lines of the periphery through the metal wires 11b, and are provided to the common electrodes.
- Public signal The transparent electrode layer 21 on the upper substrate 20 of the pixel unit will be charged after the channel is opened, and a storage capacitor is formed with the common electrode 11 on the lower substrate 10 to realize a display function.
- the electronic paper touch screen provided in the optional embodiment of the present disclosure is based on the active matrix type electronic paper structure, optimizes the electronic paper pixel design without increasing the process process, and designs the self-capacitive touch electrode to the TFT substrate. On the other, realize a thinner and lighter electronic paper touch screen.
- FIG. 3 is a schematic cross-sectional view of an electronic paper touch screen provided in an alternative embodiment of the present disclosure
- FIG. 4 is a schematic diagram showing a pixel structure of an electronic paper touch screen provided in an alternative embodiment of the present disclosure.
- the electronic paper touch screen includes: a first substrate 100 and a second substrate 200 disposed opposite to each other and an electron disposed between the first substrate 100 and the second substrate 200 Ink layer 300.
- the first substrate 100 is provided with a first electrode layer 101, a protective layer 102, an insulating ink layer 103, etc., and the first electrode layer 101 may be an indium tin oxide layer (ITO layer).
- ITO layer indium tin oxide layer
- a transparent electrode layer Compared with the electronic paper of FIG. 1 , the touch electrode layer may not be disposed on the first substrate 100 in this embodiment.
- a plurality of pixel units and a second electrode layer 201 distributed in a matrix are provided on the second substrate 200.
- the second electrode layer 201 is composed of a plurality of electrode blocks 2010. Each of the pixel units is correspondingly provided with an electrode block 2010, and a plurality of the electrode blocks 2010 constitute one electrode unit. As shown in FIG. 4, the plurality of electrode units includes a first electrode unit 501, a second electrode unit 502, a third electrode unit 503, and a fourth electrode unit 504, wherein each electrode block 2010 in the same electrode unit passes through a metal line. 201c connection. Each of the electricity The pole unit is separately connected to a signal line, and is connected to the driver IC end through a peripheral signal line, and the electrode blocks 2010 between the different electrode units are independently arranged.
- the touch electrode layer 41 is omitted on the first substrate, and the thickness of the device can be reduced.
- the common electrode of the display area of the electronic paper touch screen is divided into a plurality of mutually independent electrode units according to the size of the display area and the touch habit and precision of the person, and each electrode unit includes the same number of pixels. Number and consistent arrangement. That is, the pixel arrangement structure of each electrode unit is completely the same, and each electrode block 2010 in each electrode unit is connected to each other by a metal wire 201c.
- the data lines and the scan lines on the TFT substrate can refer to the wiring manner in FIG.
- the electronic paper touch screen provided in this embodiment can save the process of the touch electrode in FIG. 1 , and the second substrate can simultaneously form the display electrode and the touch electrode simultaneously by one patterning process, and other structures (such as data lines and The process of scanning lines, etc. is unchanged, so that the electronic paper pixel design is optimized without increasing the process process, and the self-capacitive touch electrode is designed on the TFT substrate to realize a thinner and lighter electronic paper touch screen.
- a further object of the present disclosure is to provide a method for controlling an electronic paper touch screen according to an embodiment of the present disclosure, the method comprising: inputting a touch signal to each electrode unit in the second electrode layer 201 during a touch time period; A display signal is input to each of the electrode units in the second electrode layer 201 during the display period.
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Abstract
一种电子纸触摸屏及其控制方法、显示装置。该电子纸触摸屏包括:形成有第一电极层(101)的第一基板(100)和形成有第二电极层(201)的第二基板(200)及设置在第一电极层(101)和第二电极层(201)之间的电子墨水层(300);第二基板(200)上的第二电极层(201)包括相互独立设置的多个电极单元(2010),每一电极单元(2010)单独连接一信号线,信号线用于在触控时间段,向电极单元输入触控信号,在显示时间段,向电极单元输入显示信号。
Description
相关申请的交叉引用
本申请主张在2015年10月9日在中国提交的中国专利申请号No.201510649664.5的优先权,其全部内容通过引用包含于此。
本公开涉及显示技术领域,尤其涉及一种电子纸触摸屏及其控制方法。
电子纸具有低功耗、低成本、柔性显示、符合人们的阅读习惯的特点,同时相比纸张,易于携带,存储量大,环保等优点,越来越被广泛应用。随着智能手机,智能穿戴设备的迅速兴起和发展,人们对于触控体验的要求越来越高。当前电子纸的触摸屏主要采用外接方式,具有较高的功耗,增加了触控屏的厚度,且不具有成本优势。
电子纸显示设备多是采用电子笔作为显示器的输入设备,笔尾有一根导线和电子纸相连,书写极为不方便,并且书写过程中,笔尖部分与电子纸接触容易造成电子纸的划伤。而采用触控触摸屏时,往往触控结果具有枕形失真的缺点,电子纸的厚度也比较厚,影响电子纸显示器件的光透过率。
发明内容
本公开的目的在于提供一种电子纸触摸屏结构及显示装置,其结构简单,可以简化工艺制程,实现轻薄化,且提高光透过率。
一方面,本公开实施例提供了一种电子纸触摸屏,包括:形成有第一电极层的第一基板和形成有第二电极层的第二基板;以及设置在所述第一电极层和第二电极层之间的电子墨水层;所述第二基板上的第二电极层包括相互独立设置的多个电极单元,每一所述电极单元单独连接一信号线,所述信号线用于在触控时间段,向所述电极单元输入触控信号,在显示时间段,向所述电极单元输入显示信号。
可选地,所述第二基板包括多个像素单元,每一所述电极单元与至少一个像素单元对应设置。
可选地,所述第二电极层包括多个电极块,每一所述电极块与至少一个
像素单元对应设置,且若干所述电极块组成一个所述电极单元,其中同一所述电极单元内的各电极块连接,不同所述电极单元之间的电极块相互独立设置。
可选地,所述像素单元与所述电极块一一对应设置。
可选地,每一所述电极单元内所包含的电极块数量相同。
可选地,所述第二基板为阵列基板。
可选地,所述第一基板为PET基板。
可选地,所述电子墨水层中分布有微胶囊。
可选地,所述微胶囊内有封装有用于显示一种颜色的至少一种量子点。
可选地,所述电子墨水层还可以包括多个微杯或多个旋转球。
可选地,所述第一电极层为透明电极层,所述第二电极层为公共电极层,所述信号线用于在所述显示时间段,向所述电极单元输入公共电极信号。
另一方面,本公开实施例还提供了一种如上所述的电子纸触摸屏的控制方法,所述方法包括:在触控时间段,向第二电极层中各电极单元上输入触控信号;在显示时间段,向第二电极层中各电极单元上输入显示信号。
另一方面,本公开实施例还提供了一种显示装置,包括如上所述的电子纸触摸屏。
本公开所带来的有益效果如下:本公开所提供的电子纸触控屏,将第二基板上的第二电极层分隔为独立的若干电极单元,每一电极单元分别连接一根信号线,采用分时驱动方式,将各电极单元在不同时段分别提供触控信号和显示信号,而实现显示电极和触控电极共用载体,减少了整个器件的厚度,更加轻薄化。同时,厚度的减少也能限制的提高光的传播速度,提高透过率。此外,显示电极和触控电极共用载体,不会增加工艺制程,能够为用户提供低成本,可靠的电子纸触控体验。
图1表示一种电子纸触摸屏的断面结构示意图;
图2表示一种电子纸触摸屏的TFT基板的像素结构示意图;
图3表示本公开实施例中提供的电子纸触摸屏的断面结构示意图;
图4表示本公开实施例提供的电子纸触摸屏的TFT基板上像素结构示意
图。
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例的附图,对本公开实施例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公开的一部分实施例,而不是全部的实施例。基于所描述的本公开的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本公开保护的范围。
除非另作定义,此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”或者“一”等类似词语也不表示数量限制,而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也相应地改变。
如图1所示,提出了一种不依靠电子笔的技术。通过TFT基板10上的公共电极11和上基板20上的透明电极21的控制来实现微胶囊30的偏转,进而完成显示。其中,在电子纸上的上基板20上沉积有ITO(Indium Tin Oxide,铟锡氧化物层)电极40,四角有电极走线41与驱动IC端相连。当手指触控触摸屏时,通过测试四个角电流差异判定触控位置。该方法相比电子笔技术,能减少显示装置的厚度,有良好的触控体验,但是仍然有复杂的工艺制程,并且触控结果具有枕形失真的缺点,电子纸的厚度也比较厚,影响电子纸显示器件的光透过率。
针对电子纸触摸屏厚度大,制程复杂以及影响光透过率等技术问题,本公开提供了一种电子纸触摸屏,其结构简单,可以简化工艺制程,实现轻薄化,且提高光透过率。
如图3和图4所示,本公开所提供的电子纸触摸屏,包括:形成有第一电极层101的第一基板100;形成有第二电极层201的第二基板200;以及设置在所述第一电极层101和第二电极层201之间的电子墨水层300。其中,
所述第二基板200上的第二电极层201包括相互独立设置的多个电极单元,每一所述电极单元单独连接一信号线,所述信号线用于在触控时间段,向所述电极单元输入触控信号,在显示时间段,向所述电极单元输入显示信号。
本公开所提供的电子纸触控屏,为一种自容式电子纸触摸屏,其是将用于实现触控功能的自容式金属电极,同时作为用于实现显示功能的显示电极来使用。通过采用分时驱动的方式,可以在不同时段分别向作为显示电极和触控电极的金属电极来提供触控信号和显示信号,而实现显示和触控功能。
具体地,本公开提供的电子纸触摸屏,将设置在第二基板200上的第二电极层201分隔为相互独立的若干个电极单元。若干个电极单元呈矩阵排列在第二基板200上,每一个电极单元上分别连接一根信号线,采用分时驱动方式,在显示时间段,每一个电极单元通过信号线接入显示信号,将存储电荷;在触控时间,通过信号线扫描每一个所述电极单元的电容变化,来确定触控位置。
上述方案中,由于显示电极和触控电极共用载体,与将显示电极和触控电极分别单独设置在不同层的结构相比,可以减少整个器件的厚度,更加轻薄化。同时,厚度的减少也能限制的提高光的传播速度,提高透过率。此外,显示电极和触控电极共用载体,与将显示电极和触控电极分别单独设置相比,显示电极和触控电极可以通过同一构图工艺形成,不会增加工艺制程,能够为用户提供低成本、可靠的电子纸触控体验。
在本公开所提供的电子纸触摸屏中,可选地,所述第二基板200包括多个像素单元,每一所述电极单元与至少一个像素单元对应设置。
上述方案中,可以将每一电极单元设计为与至少一个像素单元对应,例如:每一电极单元可以与两个或两个以上的像素单元对应。
在本公开所提供的电子纸触摸屏中,可选地,如图4所示,所述第二电极层201包括矩阵分布的多个电极块2010,每一所述电极块2010与一个像素单元对应设置,且若干所述电极块2010组成一个所述电极单元,同一所述电极单元内的各电极块2010连接,不同所述电极单元之间的电极块2010相互独立设置。
上述方案中,如图4所示,每一像素单元会对应一个电极块2010设置,
同一电极单元内的各电极块2010相连,可以通过一根扫描线来向同一电极单元内的各电极块2010上提供触控信号或显示信号;而不同电极单元之间的电极块2010相互独立设置。即,不同电极单元之间的电极块2010不连接,这样,可以在提供触控信号至各电极单元的电极块2010上时,通过扫描不同位置的电极单元内电极块2010的电容变化,来确定触控位置。
本公开中,显示电极和触控电极在共用载体时,显示区域的显示电极划分为若干电极单元,并分别引信号线,而与驱动IC端连接。与将显示区域的显示电极连为一个整体相比,本公开中显示区域的显示电极可以根据驱动IC端的算法,向不同电极单元上分别提供不同的显示信号,而实现分区显示的目的。
需要说明的是,在实际应用中,每一所述电极块2010还可以是与多个像素电极对应设置,在此,对于电极块2010与像素电极之间的对应关系也可以有其他实现方式,并不进行局限。
在本公开所提供的电子纸触摸屏中,可选地,每一所述电极单元内所包含的电极块2010数量相同。应当理解的是,对于每一电极单元内的电极块2010的具体数量在此并不作局限。
此外,在本公开所提供的电子纸触摸屏中,可选地,所述电子墨水层300中分布有微胶囊。所述微胶囊内有封装有可用于显示一种颜色的至少一种量子点,或者,所述电子墨水层300还可以包含多个微杯或包含多个旋转球。
此外,在本公开所提供的电子纸触摸屏中,可选地,所述第一电极层101为透明电极层,所述第二电极层201为公共电极层,所述信号线用于在所述显示时间段,向所述电极单元输入公共电极信号。当然可以理解的是,所述第二电极层201在特殊应用场合中,也可以能并不作为公共电极使用,而是用于实现显示功能的一种显示电极即可。
此外,如图3所示,本公开所提供的电子纸触摸屏可以为有源矩阵型电子纸,其中,所述第一基板100可以为PET基板,所述第二基板200可以为TFT阵列基板,当然也可以为其他类型电子纸触摸屏。
以下就以本公开提供的电子纸触摸屏为有源矩阵型电子纸为例,并通过和图1所示的有源矩阵型电子纸相对比,来对本公开提供的电子纸触摸屏的
可选实施例进行详细说明。
图1所示为一种有源矩阵型电子纸的断面结构示意图;图2所示为根据图1的有源矩阵型电子纸的像素结构示意图。如图1所示的有源矩阵型电子纸包括相对设置的上基板20和下基板10以及设置在上基板20和下基板10之间的电子墨水层30。其中,上基板20上设置有透明电极层21、保护层(图1中未示出)、触控电极41以及绝缘油墨层42等。该透明电极层21可以是铟锡氧化物层(Indium Tin Oxide,简称ITO层)。如图2所示,下基板10上设有呈矩阵分布的多个像素单元和纵横交错的数据线(Data Line)11c和扫描线(Scan Line)11d,每一像素单元对应设置有一金属电极块11a,其中相邻像素单元所对应的金属电极块11a之间通过金属线11b相连接,而形成公共电极11,并通过金属线11b与***的公共信号线连接,而向所述公共电极上提供公共信号。像素单元在沟道打开后上基板20上的透明电极层21将会充电,而与下基板10上的公共电极11形成存储电容,而实现显示功能。
本公开可选实施例中提供的电子纸触摸屏就是基于该有源矩阵型电子纸结构,在不增加工艺制程的情况下,优化电子纸像素设计,而将自容式触控电极设计到TFT基板上,实现更加轻薄化的电子纸触摸屏。
如图3所示为本公开可选实施例中提供的电子纸触摸屏的断面结构示意图;图4所示为本公开可选实施例中提供的电子纸触摸屏的像素结构示意图。
如图3所示,在本公开可选实施例中,所述电子纸触摸屏包括:相对设置的第一基板100和第二基板200以及设置在第一基板100和第二基板200之间的电子墨水层300。其中,所述第一基板100上设置有第一电极层101、保护层102和绝缘油墨层103等,所述第一电极层101可以是铟锡氧化物层(Indium Tin Oxide,简称ITO层)等透明电极层。与图1所述的电子纸相比,本实施例中的第一基板100上可以不再设置触控电极层。在第二基板200上设有呈矩阵分布的多个像素单元以及第二电极层201。其中第二电极层201由多个电极块2010组成。每一像素单元对应设置有一电极块2010,且若干所述电极块2010组成一个电极单元。如图4所示,多个电极单元包括第一电极单元501,第二电极单元502、第三电极单元503和第四电极单元504,其中同一所述电极单元内的各电极块2010通过金属线201c连接。每一所述电
极单元单独连接一信号线,并通过***信号线与驱动IC端连接,不同所述电极单元之间的电极块2010相互独立设置。
上述方案中,如图1和图3所示,本实施例中第一基板上省去了触控电极层41,可以减少器件的厚度。而在第二基板上,将电子纸触摸屏的显示区域的公共电极根据显示区域大小以及人的触摸习惯和精度等分割成相互独立的多个电极单元,每一电极单元内包含同样数目的像素个数和一致的排列方式。即,每一电极单元的像素排列结构完全相同,每一电极单元内的各电极块2010通过金属线201c彼此连接。TFT基板上的数据线和扫描线可以参照图1中的布线方式,而仅仅是改变不同各电极块之间的金属线的布线方式,将不同电极单元之间连接的金属线断开,使得不同电极单元之间不再连接,而相互独立,且将各电极单元分别通过单独的***信号线引出连接到驱动IC端。因此,本实施例中提供的电子纸触摸屏可以省却图1中触控电极的工艺制程,而第二基板又可以显示电极和触控电极通过一次构图工艺同时形成,同时其他结构(如数据线和扫描线等)的工艺制程不变,从而在不增加工艺制程的情况下,优化电子纸像素设计,而将自容式触控电极设计到TFT基板上,实现更加轻薄化的电子纸触摸屏。
本公开的还一个目的在于提供一种本公开实施例提供的电子纸触摸屏的控制方法,所述方法包括:在触控时间段,向第二电极层201中各电极单元上输入触控信号;在显示时间段,向第二电极层201中各电极单元上输入显示信号。
本公开的还一个目的在于提供一种显示装置,包括本公开实施例提供的电子纸触摸屏。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。
Claims (13)
- 一种电子纸触摸屏,包括:形成有第一电极层的第一基板;形成有第二电极层的第二基板;以及设置在所述第一电极层和第二电极层之间的电子墨水层;其中,所述第二基板上的第二电极层包括相互独立设置的多个电极单元,每一所述电极单元单独连接一信号线,所述信号线用于在触控时间段,向所述电极单元输入触控信号,在显示时间段,向所述电极单元输入显示信号。
- 根据权利要求1所述的电子纸触摸屏,其中,所述第二基板包括多个像素单元,每一所述电极单元与至少一个像素单元对应设置。
- 根据权利要求2所述的电子纸触摸屏,其中,所述第二电极层包括多个电极块,每一所述电极块与至少一个像素单元对应设置,且若干所述电极块组成一个所述电极单元,其中同一所述电极单元内的各电极块连接,不同所述电极单元之间的电极块相互独立设置。
- 根据权利要求3所述的电子纸触摸屏,其中,所述像素单元与所述电极块一一对应设置。
- 根据权利要求3所述的电子纸触摸屏,其中,每一所述电极单元内所包含的电极块数量相同。
- 根据权利要求1所述的电子纸触摸屏,其中,所述第二基板为阵列基板。
- 根据权利要求1所述的电子纸触摸屏,其中,所述第一基板为PET基板。
- 根据权利要求1所述的电子纸触摸屏,其中,所述电子墨水层中分布有微胶囊。
- 根据权利要求8所述的电子纸触摸屏,其中,所述微胶囊内有封装有用于显示一种颜色的至少一种量子点。
- 根据权利要求8所述的电子纸触摸屏,其中,所述电子墨水层还可以包括多个微杯或多个旋转球。
- 根据权利要求1所述的电子纸触摸屏,其中,所述第一电极层为透明电极层,所述第二电极层为公共电极层,所述信号线用于在所述显示时间段,向所述电极单元输入公共电极信号。
- 一种如权利要求1至11任一项所述的电子纸触摸屏的控制方法,包括:在触控时间段,向第二电极层中各电极单元上输入触控信号;在显示时间段,向第二电极层中各电极单元上输入显示信号。
- 一种显示装置,包括如权利要求1至11任一项所述的电子纸触摸屏。
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EP16829394.2A EP3361364A4 (en) | 2015-10-09 | 2016-08-24 | TOUCH SCREEN FOR ELECTRONIC PAPER AND CONTROL METHOD AND DISPLAY DEVICE THEREFOR |
US15/502,520 US10261383B2 (en) | 2015-10-09 | 2016-08-24 | Electronic paper touch panel, its controlling method, and display device |
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US10642121B2 (en) * | 2017-03-02 | 2020-05-05 | Korea Electronics Technology Institute | Reflective display device for visible light and infrared camouflage and active camouflage device using the same |
CN108646940A (zh) * | 2018-04-24 | 2018-10-12 | 维沃移动通信有限公司 | 一种电子墨水屏及移动终端 |
TWI833288B (zh) * | 2022-07-19 | 2024-02-21 | 緯創資通股份有限公司 | 電子紙載體及畫面更新機台 |
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US10261383B2 (en) | 2019-04-16 |
CN105183260A (zh) | 2015-12-23 |
EP3361364A1 (en) | 2018-08-15 |
US20180210309A1 (en) | 2018-07-26 |
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