WO2017121161A1 - 显示面板及其驱动方法和制作方法、显示装置 - Google Patents

显示面板及其驱动方法和制作方法、显示装置 Download PDF

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Publication number
WO2017121161A1
WO2017121161A1 PCT/CN2016/102866 CN2016102866W WO2017121161A1 WO 2017121161 A1 WO2017121161 A1 WO 2017121161A1 CN 2016102866 W CN2016102866 W CN 2016102866W WO 2017121161 A1 WO2017121161 A1 WO 2017121161A1
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Prior art keywords
display panel
electrode
display
layer
array substrate
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PCT/CN2016/102866
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English (en)
French (fr)
Inventor
赵家阳
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京东方科技集团股份有限公司
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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 EP16869378.6A priority Critical patent/EP3404472A4/en
Priority to US15/534,623 priority patent/US10495913B2/en
Publication of WO2017121161A1 publication Critical patent/WO2017121161A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306Circuit arrangements or driving methods for the control of single liquid crystal cells
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04142Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

Definitions

  • the present disclosure relates generally to the field of display. More particularly, the present disclosure relates to a display panel, a display device including the display panel, and a method for driving the display panel and a method for fabricating the display panel.
  • the prior art couples a touch sensor panel with an actuator to form a push button that can generate an input based on the pressing of the button and/or based on a touch event performed on the surface of the button.
  • the appearance of the push button expands the sensing of the user input by the touch screen from the traditional two-dimensional space to the three-dimensional space, that is, the touch screen can not only sense the user's touch input on the touch screen plane, but also can sense the direction perpendicular to the touch screen.
  • the user's first-level or even multi-level press input is measured, thereby greatly enhancing the user's interaction experience with the touch screen, enriching the function of the touch screen.
  • the actuator is usually coupled as a separate module to the touch sensor panel, so that the resulting size of the touch screen is increased, which is contrary to the current state of the art trend of becoming thinner and lighter.
  • a display panel which may include a display area and a non-display area around the display area, and one or more pressure sensors disposed in the non-display area, wherein the pressure sensor is configured to be sensed Measure the pressure input on the display panel.
  • pressure sensing of the display panel can be achieved without increasing the size of the display panel, which is advantageous for achieving slimness and portability of the display panel.
  • pressure sensor may refer to techniques as in the art. Any type of pressure sensor known to the person, such as resistance strain gauge pressure sensor, semiconductor strain gauge pressure sensor, piezoresistive pressure sensor, inductive pressure sensor, capacitive strain gauge pressure sensor, resonant pressure sensor, and capacitive acceleration sensor .
  • the pressure sensor may include a first electrode disposed on an opposite substrate of the display panel and a second electrode disposed on the array substrate of the display panel, and sandwiched between the first electrode A layer of elastomeric material between the second electrode.
  • a capacitive strain gauge pressure sensor is employed to sense the pressure input on the display panel.
  • the display panel is slightly deformed, resulting in a change in the height of the elastic material (for example, being compressed), so that the first electrode of the pressure sensor
  • the capacitance value with the second electrode changes, and the different capacitance change levels correspond to the received pressure level, thus enabling sensing of the pressure input.
  • the opposite substrate may include a common electrode on a side close to the array substrate, and the first electrode and the common electrode may be disposed in the same layer.
  • the first electrode and the common electrode can be formed in a single patterning process, thereby simplifying the process flow and saving manufacturing costs.
  • the array substrate may include an electrode layer on a side close to the opposite substrate, and the second electrode and the electrode layer may be disposed in the same layer.
  • the second electrode and the electrode layer can be formed in a single patterning process, thereby simplifying the process flow and saving manufacturing costs.
  • the electrode layer may include one of a gate electrode layer, a source/drain electrode layer, and a pixel electrode layer.
  • the display panel may further include a spacer disposed between the array substrate and the opposite substrate for supporting the array substrate and the opposite substrate, wherein the The elastic material layer and the spacer of the display panel may be disposed in the same layer and the same material.
  • the layer of elastomeric material and the spacers can be formed in a single patterning process, thereby simplifying the process and saving manufacturing costs.
  • the term “cushion” refers to an auxiliary material used during assembly of a display panel for controlling the gap between the opposing substrate of the display panel and the array substrate to maintain an optimum layer thickness.
  • the pressure sensor may further include a pressure sensor control circuit, and the first electrode and the second electrode may respectively pass through corresponding signal lines and pressure transmission The sensor control circuit is connected.
  • the display panel may include an integrated control circuit on which the pressure sensor control circuit may be integrated with a driving circuit of the display panel.
  • the driving circuit of the display panel may include a power sub-circuit, a timing control sub-circuit, a gray-scale sub-circuit, a data driving sub-circuit, a gate driving sub-circuit, a system interface, and the like. Signals from the system provide various display data and timing control signals to the drive circuit through the system interface. A portion of these data and signals are transmitted to the timing control sub-circuit to generate the operational timing of the data driving sub-circuit and the gate driving sub-circuit.
  • the pressure sensor control circuit may be integrally integrated with the driving circuit of the display panel, or may be integrated with one or more sub-circuits of the driving circuit.
  • a display device which may include the display panel of any of the above embodiments.
  • pressure sensing can be achieved without increasing the size of the display device, which is advantageous in achieving slimness and portability of the display device.
  • the display device may further include a touch panel disposed on a light exiting side of the display panel.
  • a driving method of a display panel which is suitable for driving the display panel described in any of the above embodiments.
  • the driving method can include sensing a pressure input on the display panel with one or more pressure sensors integrated in a non-display area of the display panel during a pressure sensing phase; and displaying an image during the display phase.
  • the pressure sensing phase and the display phase alternate and do not overlap.
  • the second electrode of each of the pressure sensors is pulse-scanned row by row. Both pressure sensing and display functions are implemented in a time division multiplexed manner, for example, pressure sensing is performed during the clock synchronization phase of each frame. Therefore, interference of the internal signals of the display panel is avoided.
  • the above-described driving method of the display panel has embodiments and advantages corresponding to or similar to the display panel described in accordance with the first aspect of the present disclosure and the display device according to the second aspect of the present disclosure, and details are not described herein again.
  • a method of making a display panel is provided.
  • the method is suitable for use in making the display panel of any of the above embodiments.
  • the production method can include:
  • the pressure sensor Forming a pressure sensor between the array substrate and the opposite substrate, the pressure sensor including a first electrode disposed opposite to the opposite substrate and a second electrode disposed on the array substrate And a layer of elastic material sandwiched between the first electrode and the second electrode.
  • the opposite substrate may include a common electrode on a side close to the array substrate, and the method may further include forming the first electrode and the common through a single patterning process electrode.
  • the array substrate may include an electrode layer on a side close to the opposite substrate, the method may further include forming the second electrode and the Electrode layer.
  • the display panel may further include a spacer disposed in the display area for supporting the array substrate and the opposite substrate, wherein the method may further include forming the pressure by one patterning process The layer of elastic material of the sensor and the spacer of the display panel.
  • the above-described display panel manufacturing method has embodiments and advantages corresponding to or similar to the display panel described in accordance with the first aspect of the present disclosure and the display device according to the second aspect of the present disclosure, and details are not described herein again.
  • FIG. 1 schematically illustrates a top view of a display panel in accordance with an embodiment of the present disclosure
  • FIG. 2 schematically illustrates a cross-sectional view of a display panel in accordance with an embodiment of the present disclosure
  • FIG. 3 illustrates a simplified schematic diagram of a pressure sensor in accordance with an embodiment of the present disclosure
  • FIG. 4 schematically illustrates a cross-sectional view of a display panel when stressed, in accordance with an embodiment of the present disclosure
  • FIG. 5 schematically illustrates a method of driving a display panel in accordance with an embodiment of the present disclosure.
  • FIG. 6 schematically illustrates a flow chart of a method of fabricating a display panel in accordance with an embodiment of the present disclosure.
  • FIG. 1 The present disclosure, however, may be embodied in a number of different forms and should not be construed as being limited to the embodiments set forth herein.
  • the embodiments are provided for the sake of completeness and clarity.
  • FIG. 1 schematically illustrates a top view of a display panel in accordance with an embodiment of the present disclosure.
  • the display panel includes a display area AA and a non-display area located around the display area AA, and one or more pressure sensors disposed in the non-display area, wherein the pressure sensor is configured to sense the display panel Pressure input.
  • FIG. 2 schematically illustrates a cross-sectional view of a display panel in accordance with an embodiment of the present disclosure.
  • the pressure sensor may include a first electrode 101 disposed on the opposite substrate 200 of the display panel and a second electrode 102 disposed on the array substrate 100 of the display panel, and sandwiched between the first electrodes An elastic material layer 103 between the 101 and the second electrode 102.
  • the pressure sensor is located below the black matrix 104 of the display panel.
  • the first electrode 101, the second electrode 102, and the elastic material layer 103 therebetween constitute a capacitive strain gauge pressure sensor.
  • Each pressure sensor includes a separate second electrode, and a plurality of pressure sensors share a first electrode, as shown in FIG. In Figure 3, the layer of elastomeric material of the pressure sensor is omitted for clarity.
  • the display panel When the finger applies pressure on the display panel, as shown in FIG. 4, the display panel is slightly deformed, causing the elastic material 103 to be compressed, thereby causing the capacitance value between the first electrode 101 and the second electrode 102 to be changed, and different.
  • the level of capacitance change corresponds to the level of pressure received, thus enabling sensing of the pressure input.
  • the display panel may include any one or more pressure sensors depending on factors such as size design and required pressure sensing accuracy ( As shown in FIG. 3), and the pressure sensor is not limited to a capacitive strain gauge pressure sensor, any type of pressure sensor known in the art may be employed.
  • the opposite substrate 200 is included in the array
  • the color film layer 105 and the common electrode 106 on one side of the substrate 100, and the first electrode 101 and the common electrode 106 are formed of the same material in the same layer.
  • the first electrode and the common electrode are formed in a single patterning process, thereby simplifying the process flow and saving manufacturing costs.
  • the array substrate 100 includes an electrode layer 107 on the side close to the opposite substrate 200, and the second electrode 102 is formed of the same material as the electrode layer 107.
  • the second electrode and the electrode layer are formed in a single patterning process, thereby simplifying the process flow and saving manufacturing costs.
  • the electrode layer 107 may include one of a gate electrode layer, a source/drain electrode layer, and a pixel electrode layer.
  • the display panel further includes a spacer 108 disposed between the array substrate 100 and the opposite substrate 200 for supporting the array substrate 100 and the opposite substrate 200, wherein the elastic material layer 103 and the spacer of the display panel 108 the same layer is formed with the same material.
  • the layer of elastomeric material and the spacers are formed in a single patterning process, thereby simplifying the process and saving manufacturing costs.
  • the layer of elastic material and the spacer may be simultaneously formed by a patterning process known in the art such as sputtering, photolithography, etch stripping, and the like.
  • the display panel further includes an array driving laminate 109 and a sealant 110 in a non-display area, wherein the array driving laminate 109 is used to drive respective pixels of the display panel, and the sealing glue 110 is used to package the display panel.
  • Each of the pressure sensors includes a pressure sensor control circuit (not shown in the drawing), and the first electrode and the second electrode are respectively connected to the pressure sensor control circuit through respective signal lines.
  • the pressure sensor control circuit is configured to drive the pressure sensor during the pressure sensing phase and receive a sensing signal of the pressure sensor to determine a user's press input based on the received sensing signal.
  • the pressure sensor control circuit may be integrated with the drive circuit of the display panel on the integrated control circuit of the display panel, or may be an external circuit of the integrated control circuit of the display panel.
  • Fig. 5 schematically illustrates a driving method of the above display panel.
  • the pressure input on the display panel is sensed by detecting signals on the second electrode 1 to the second electrode n of each of the plurality of pressure sensors, the first electrode of the plurality of pressure sensors Ground.
  • gate driving signals are sequentially applied to the gate lines G1, G2, ..., Gn-2, Gn-1, Gn, and the display panel displays an image, and at this time, each of the plurality of pressure sensors is second. There is no signal output on the electrode 1 to the second electrode n and the first electrode.
  • the pressure sensing phase and the display phase alternate and do not overlap.
  • FIG. 6 schematically illustrates a flow chart of a method of fabricating a display panel in accordance with an embodiment of the present disclosure.
  • an array substrate and a counter substrate are fabricated.
  • the array substrate and the opposite substrate are aligned to form a display. panel.
  • a pressure sensor between the array substrate and the opposite substrate is fabricated, the pressure sensor includes a first electrode disposed opposite to the opposite substrate and disposed on the array substrate a second electrode, and a layer of elastomeric material sandwiched between the first electrode and the second electrode.
  • the above method may further include the following steps.
  • the method further includes forming the first electrode and the common electrode by a single patterning process at step S106.
  • the method further includes forming the second electrode and the electrode layer by a single patterning process at step S108.
  • the method further includes forming the elastic material layer of the pressure sensor and the spacer of the display panel by one patterning process at step S110.
  • the present disclosure also provides a display device including the display panel described above, which may optionally include a touch panel disposed on a light exit side of the display panel.
  • the present disclosure can be widely applied to various display devices and devices having display devices such as mobile phones, notebook computers, television sets, and the like.
  • steps or actions of the method is not necessarily limited to the order of the steps or actions of the method, and the method may be omitted, in any method that includes more than one step or action, as claimed herein. Some of the steps in the steps or the order in which the steps in the method are changed. For example, in FIG. 6, steps S106, S108, and S110 may be omitted without departing from the scope of the present disclosure.

Abstract

一种显示面板,包括显示区和显示区周围的非显示区,以及布置在非显示区中的一个或多个压力传感器,其中压力传感器被配置成感测显示面板上的压力输入。还提供了一种显示装置、驱动显示面板的方法以及制作显示面板的方法。

Description

显示面板及其驱动方法和制作方法、显示装置 技术领域
本公开一般地涉及显示领域。更具体地,本公开涉及一种显示面板、包括所述显示面板的显示装置,以及用于驱动所述显示面板的方法和用于制作所述显示面板的方法。
背景技术
现有技术将触摸传感器面板与致动器耦合以形成按压式按钮,其可以基于按钮的按压和/或基于在按钮表面上执行的触摸事件来生成输入。按压式按钮的出现将触摸屏对用户输入的感测从传统的二维空间扩展到三维空间,即,触摸屏不仅可以在触摸屏平面上感测用户的触摸输入,而且可以在垂直于触摸屏的方向上感测用户的一级甚至多级按压输入,从而极大地增强了用户与触摸屏的交互体验,丰富了触摸屏的功能。
但是,在现有技术中,致动器通常作为单独的模块与触摸传感器面板耦合,使得结果得到的触摸屏的尺寸增大,这有悖于日益轻薄化、便携化的当前技术发展趋势。
鉴于上文,在显示领域中存在对于改进的感应式显示装置的需要。
发明内容
本公开的一个目的是提供一种显示面板、包括所述显示面板的显示装置,以及用于驱动所述显示面板的方法和用于制作所述显示面板的方法,其能够至少部分地缓解或消除以上提到的现有技术中的问题中的一个或多个。
根据本公开的一个方面,提供了一种显示面板,其可以包括显示区和显示区周围的非显示区,以及布置在非显示区中的一个或多个压力传感器,其中压力传感器被配置成感测显示面板上的压力输入。
在本公开中,通过将一个或多个压力传感器集成在显示面板中,可以实现显示面板的压力感测而不增大显示面板的尺寸,有利于实现显示面板的轻薄化和便携化。
如本文中所使用的,术语“压力传感器”可以是指如本领域技术 人员已知的任何类型的压力传感器,诸如电阻应变式压力传感器、半导体应变式压力传感器、压阻式压力传感器、电感式压力传感器、电容应变式压力传感器、谐振式压力传感器以及电容式加速度传感器等。
根据本公开的一个实施例,所述压力传感器可以包括相对设置的布置在显示面板的对向基板上的第一电极和布置在显示面板的阵列基板上的第二电极,以及夹在第一电极与第二电极之间的弹性材料层。
在该实施例中,采用电容应变式压力传感器来感测显示面板上的压力输入。具体地,根据弹性材料的弹性性质和应变式电容变化原理,当在显示面板上施加压力时,显示面板发生微小形变,导致弹性材料的高度变化(例如,被压缩),使得压力传感器第一电极与第二电极之间的电容值发生改变,并且不同的电容变化等级对应所受压力等级,因此使得能够实现压力输入的感测。
根据本公开的一个实施例,在显示区,对向基板可以包括在靠近所述阵列基板一侧的公共电极,所述第一电极与所述公共电极可以被设置为同层同材料。第一电极和公共电极可以在一次图案化工艺中形成,从而简化工艺流程,节约制造成本。
根据本公开的一个实施例,在显示区,阵列基板可以包括在靠近所述对向基板一侧的电极层,所述第二电极与所述电极层可以被设置为同层同材料。第二电极和电极层可以在一次图案化工艺中形成,从而简化工艺流程,节约制造成本。
在示例性实施例中,电极层可以包括栅电极层、源漏电极层和像素电极层中的一个。
根据本公开的另一实施例,显示面板还可以包括布置在所述阵列基板与所述对向基板之间的隔垫物,用于支撑所述阵列基板和所述对向基板,其中所述弹性材料层与显示面板的隔垫物可以被设置为同层同材料。同样地,弹性材料层和隔垫物可以在一次图案化工艺中形成,从而简化工艺流程,节约制造成本。
如本文所使用的,术语“隔垫物”是指在显示面板装配期间所使用的辅助材料,其用于控制显示面板的对向基板与阵列基板之间的间隙,以保持最佳层厚度。
根据本公开的再一实施例,所述压力传感器还可以包括压力传感器控制电路,第一电极和第二电极可以分别通过相应信号线与压力传 感器控制电路连接。
根据本公开的另外的实施例,显示面板可以包括集成控制电路,所述压力传感器控制电路可以与显示面板的驱动电路集成在该集成控制电路上。
如本领域技术人员所已知的,显示面板的驱动电路可以包括电源子电路、时序控制子电路、灰阶子电路、数据驱动子电路、栅极驱动子电路和系统接口等。来自系统的信号通过系统接口向驱动电路提供各种显示数据和时序控制信号。这些数据和信号的一部分传输给时序控制子电路,从而生成数据驱动子电路、栅极驱动子电路的工作时序。在本公开的示例性实施例中,压力传感器控制电路可以与显示面板的驱动电路整体集成,也可以与驱动电路的一个或多个子电路集成。
根据本公开的另一方面,提供了一种显示装置,其可以包括以上任一个实施例所述的显示面板。
在本公开中,通过将一个或多个压力传感器集成在显示装置的显示面板中,可以实现压力感测而不增大显示装置的尺寸,有利于实现显示装置的轻薄化和便携化。
根据本公开的一个实施例,上述显示装置还可以包括触摸面板,所述触摸面板设置在所述显示面板的出光侧。
根据本公开的又一方面,提供了一种显示面板的驱动方法,该方法适合用于驱动以上任一个实施例所述的显示面板。该驱动方法可以包括在压力感测阶段,利用集成在显示面板的非显示区中的一个或多个压力传感器感测显示面板上的压力输入;以及在显示阶段,显示图像。
根据本公开的一个实施例,所述压力感测阶段和显示阶段交替且不重叠。在上述驱动方法中,对每一个压力传感器的第二电极逐行进行脉冲扫描。采用分时复用的方式来实现压力感测和显示功能二者,例如,在每一帧的时钟同步阶段执行压力感测。因此,避免了显示面板的内部信号的干扰。
另外,上述显示面板的驱动方法具有与根据本公开的第一方面描述的显示面板和根据本公开的第二方面描述的显示装置对应或类似的实施例和优点,在此不再赘述。
根据本公开的另外的方面,提供了一种制作显示面板的方法。该 方法适合用于制作以上任一个实施例所述的显示面板。该制作方法可以包括:
制作阵列基板以及对向基板;
将所述阵列基板与所述对向基板对位贴合,形成显示面板;以及
制作所述阵列基板与所述对向基板之间的压力传感器,所述压力传感器包括相对设置的布置在所述对向基板上的第一电极和布置在所述阵列基板上的第二电极,以及夹在第一电极与第二电极之间的弹性材料层。
根据本公开的一个实施例,在显示区,对向基板可以包括在靠近所述阵列基板一侧的公共电极,所述方法还可以包括通过一次图案化工艺形成所述第一电极和所述公共电极。
根据本公开的另一实施例,在显示区,阵列基板可以包括在靠近所述对向基板一侧的电极层,所述方法还可以包括通过一次图案化工艺形成所述第二电极与所述电极层。
根据本公开的又一实施例,显示面板还可以包括布置在显示区中的隔垫物,用于支撑阵列基板和对向基板,其中所述方法还可以包括通过一次图案化工艺形成所述压力传感器的弹性材料层与显示面板的隔垫物。
另外,上述显示面板的制作方法具有与根据本公开的第一方面描述的显示面板和根据本公开的第二方面描述的显示装置对应或类似的实施例和优点,在此不再赘述。
附图说明
参照示出本公开的实施例的附图,现在将更加详细地描述本公开的这些和其它方面,其中附图未必是按照比例绘制的,而是将重点放在图示本公开的原理上。在附图中:
图1示意性地图示了根据本公开的实施例的显示面板的顶视图;
图2示意性地图示了根据本公开的实施例的显示面板的截面视图;
图3图示了根据本公开的实施例的压力传感器的简化示意图;
图4示意性地图示了根据本公开的实施例的显示面板在受力时的截面视图;
图5示意性地图示了根据本公开的实施例的驱动显示面板的方法; 以及
图6示意性地图示了根据本公开的实施例的显示面板的制作方法的流程图。
具体实施方式
现在将参照附图在下文更全面地描述本公开,在附图中示出本公开的实施例。然而,本公开可以以许多不同形式体现并且不应当解释为限于本文所阐述的实施例;而是,为了完整性和透彻性并且为了向技术人员全面地传达本公开的范围而提供这些实施例。
图1示意性地图示了根据本公开的实施例的显示面板的顶视图。如图1所示,显示面板包括显示区A-A和位于显示区A-A周围的非显示区,以及布置在非显示区中的一个或多个压力传感器,其中压力传感器被配置成感测显示面板上的压力输入。
图2示意性地图示了根据本公开的实施例的显示面板的截面视图。如图2所示,压力传感器可以包括相对设置的布置在显示面板的对向基板200上的第一电极101和布置在显示面板的阵列基板100上的第二电极102,以及夹在第一电极101与第二电极102之间的弹性材料层103。如图2所示,压力传感器位于显示面板的黑矩阵104下方。第一电极101、第二电极102及其之间的弹性材料层103构成电容应变式压力传感器。每一个压力传感器包括单独的第二电极,并且多个压力传感器共用一个第一电极,如图3所示。在图3中,为了清楚起见,省略压力传感器的弹性材料层。
当手指在显示面板上施加压力时,如图4所示,显示面板发生微小形变,导致弹性材料103被压缩,进而使得第一电极101与第二电极102之间的电容值发生改变,并且不同的电容变化等级对应所受压力等级,因此使得能够实现压力输入的感测。
应当指出的是,尽管在图2和图4中仅示意性地示出一个压力传感器,但是显示面板可以根据尺寸设计和所需要的压力感测精度等因素而包括任何一个或多个压力传感器(如图3所示),并且压力传感器不限于电容应变式压力传感器,而是可以采用本领域中已知的任何类型的压力传感器。
可选地,如图2所示,在显示区,对向基板200包括在靠近阵列 基板100一侧的彩膜层105和公共电极106,并且第一电极101与公共电极106同层同材料形成。例如,第一电极和公共电极在一次图案化工艺中形成,从而简化工艺流程,节约制造成本。在显示区,阵列基板100包括在靠近对向基板200一侧的电极层107,第二电极102与该电极层107同层同材料形成。例如,第二电极和该电极层在一次图案化工艺中形成,从而简化工艺流程,节约制造成本。电极层107可以包括栅电极层、源漏电极层和像素电极层中的一个。
在一个示例中,显示面板还包括布置阵列基板100与对向基板200之间的隔垫物108,用于支撑阵列基板100和对向基板200,其中弹性材料层103与显示面板的隔垫物108同层同材料形成。同样地,弹性材料层和隔垫物在一次图案化工艺中形成,从而简化工艺流程,节约制造成本。可以通过诸如溅射、光刻、蚀刻剥离等本领域中已知的图案化工艺同时形成弹性材料层和隔垫物。另外,显示面板还包括位于非显示区的阵列驱动叠层109和封框胶110,其中阵列驱动叠层109用于驱动显示面板的各个像素,并且封框胶110用于封装显示面板。
各个压力传感器包括压力传感器控制电路(在图中未图示),第一电极和第二电极分别通过相应信号线与压力传感器控制电路连接。压力传感器控制电路被配置成在压力感测阶段驱动压力传感器并且接收压力传感器的感测信号,根据所接收到的感测信号确定用户的按压输入。在实践中,压力传感器控制电路可以与显示面板的驱动电路一起集成在显示面板的集成控制电路上,也可以是显示面板的集成控制电路的外部电路。
图5示意性地图示了上述显示面板的驱动方法。如图5所示,在压力感测阶段,通过检测多个压力传感器各自的第二电极1到第二电极n上的信号来感测显示面板上的压力输入,多个压力传感器的第一电极接地。在显示阶段,依次在栅线G1,G2,......,Gn-2,Gn-1,Gn上施加栅极驱动信号,显示面板显示图像,此时多个压力传感器各自的第二电极1~第二电极n和第一电极上均无信号输出。从图5可以看到,压力感测阶段和显示阶段交替且不重叠。
图6示意性地图示了根据本公开的实施例的显示面板的制作方法的流程图。如图6所示,在步骤S100处,制作阵列基板以及对向基板。在步骤S102处,将所述阵列基板与所述对向基板对位贴合,形成显示 面板。在步骤S104处,制作所述阵列基板与所述对向基板之间的压力传感器,所述压力传感器包括相对设置的布置在所述对向基板上的第一电极和布置在所述阵列基板上的第二电极,以及夹在第一电极与第二电极之间的弹性材料层。
可选地,上述方法还可以包括以下步骤。在对向基板包括在靠近所述阵列基板一侧的公共电极的情况下,方法还包括在步骤S106处通过一次图案化工艺形成所述第一电极和所述公共电极。在阵列基板包括在靠近所述对向基板一侧的电极层的情况下,方法还包括在步骤S108处通过一次图案化工艺形成所述第二电极与所述电极层。另外,在显示面板还包括隔垫物的情况下,方法还包括在步骤S110处通过一次图案化工艺形成压力传感器的弹性材料层与显示面板的隔垫物。
本公开还提供了包括以上所描述的显示面板的显示装置,该显示装置可以可选地包括触摸面板,该触摸面板设置在所述显示面板的出光侧。
本公开可以广泛地应用于各种显示装置和具有显示装置的设备,例如移动电话、笔记本计算机、电视机等等。
应当理解到,除非清楚指示相反,否则在本文所要求保护的包括多于一个步骤或动作的任何方法中,方法的步骤或动作的次序未必限于记载方法的步骤或动作的次序,并且可以省略方法中的某些步骤或者更改方法中的步骤的执行次序。例如在图6中,可以省略步骤S106、S108和S110而不脱离于本公开所要求保护的范围。
本领域技术人员将认识到,本公开绝不限于以上描述的示例实施例。相反,在所附权利要求的范围内,许多修改和变型是可能的。例如,其它组件可以添加到所描述的装置或者从所描述的装置移除。其它实施例可以在本公开的范围内。此外,在权利要求中,词语“包括”不排除其它元件或步骤。在相互不同的从属权利要求中叙述的某些措施的简单事实并不表示不能使用这些措施的组合来获益。

Claims (16)

  1. 一种显示面板,包括显示区和显示区周围的非显示区,以及布置在非显示区中的一个或多个压力传感器,其中压力传感器被配置成感测所述显示面板上的压力输入。
  2. 权利要求1所述的显示面板,其中所述压力传感器包括相对设置的布置在显示面板的对向基板上的第一电极和布置在显示面板的阵列基板上的第二电极,以及夹在所述第一电极与所述第二电极之间的弹性材料层。
  3. 权利要求2所述的显示面板,其中,在显示区,所述对向基板包括在靠近所述阵列基板一侧的公共电极,所述第一电极与所述公共电极被设置为同层同材料。
  4. 权利要求2所述的显示面板,其中,在显示区,所述阵列基板包括在靠近所述对向基板一侧的电极层,所述第二电极与所述电极层被设置为同层同材料。
  5. 权利要求4所述的显示面板,其中所述电极层包括栅电极层、源漏电极层或像素电极层中的一个。
  6. 权利要求2所述的显示面板,还包括布置在所述阵列基板与所述对向基板之间的隔垫物,用于支撑所述阵列基板和所述对向基板,其中所述弹性材料层与显示面板的隔垫物被设置为同层同材料。
  7. 权利要求2所述的显示面板,其中所述压力传感器还包括压力传感器控制电路,所述第一电极和所述第二电极分别通过相应信号线与所述压力传感器控制电路连接。
  8. 权利要求7所述的显示面板,其中,所述显示面板包括集成控制电路,所述压力传感器控制电路与所述显示面板的控制电路集成在所述集成控制电路上。
  9. 一种显示装置,包括权利要求1-8中任一个所述的显示面板。
  10. 权利要求9所述的显示装置,还包括触摸面板,所述触摸面板设置在所述显示面板的出光侧。
  11. 一种如权利要求1-8中任一个所述的显示面板的驱动方法,包括:
    在压力感测阶段,利用集成在显示面板的非显示区中的一个或多 个压力传感器感测显示面板上的压力输入;以及
    在显示阶段,显示图像。
  12. 权利要求11所述的方法,其中压力感测阶段和显示阶段交替且不重叠。
  13. 一种制作显示面板的方法,所述显示面板包括显示区和显示区周围的非显示区,所述方法包括:
    制作阵列基板以及对向基板;
    将所述阵列基板与所述对向基板对位贴合,形成显示面板;以及
    制作所述阵列基板与所述对向基板之间的压力传感器,所述压力传感器包括相对设置的布置在所述对向基板上的第一电极和布置在所述阵列基板上的第二电极,以及夹在第一电极与第二电极之间的弹性材料层。
  14. 权利要求13所述的方法,其中,在显示区,所述对向基板包括在靠近所述阵列基板一侧的公共电极,所述方法还包括通过一次图案化工艺形成所述第一电极和所述公共电极。
  15. 权利要求13所述的方法,其中,在显示区,所述阵列基板包括在靠近所述对向基板一侧的电极层,所述方法还包括通过一次图案化工艺形成所述第二电极与所述电极层。
  16. 权利要求13所述的方法,所述显示面板还包括布置在所述显示区中的隔垫物,用于支撑阵列基板和对向基板,所述方法还包括通过一次图案化工艺形成所述压力传感器的弹性材料层与显示面板的隔垫物。
PCT/CN2016/102866 2016-01-15 2016-10-21 显示面板及其驱动方法和制作方法、显示装置 WO2017121161A1 (zh)

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