WO2020155410A1 - 压力触控显示装置及压力触控方法 - Google Patents
压力触控显示装置及压力触控方法 Download PDFInfo
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- WO2020155410A1 WO2020155410A1 PCT/CN2019/083119 CN2019083119W WO2020155410A1 WO 2020155410 A1 WO2020155410 A1 WO 2020155410A1 CN 2019083119 W CN2019083119 W CN 2019083119W WO 2020155410 A1 WO2020155410 A1 WO 2020155410A1
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- pressure
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Classifications
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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
- 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
Definitions
- the invention relates to the field of display technology, in particular to a pressure touch display device and a pressure touch method.
- the existing flat display devices mainly include liquid crystal display devices (Liquid Crystal Display, LCD) and Organic Light Emitting Display (OLED).
- LCD Liquid Crystal Display
- OLED Organic Light Emitting Display
- Organic light-emitting diode display devices also have excellent characteristics such as self-luminescence, no backlight, high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide temperature range, simple structure and manufacturing process, etc. It is considered as the emerging application technology of the next generation flat panel display.
- An OLED display device generally includes a substrate, an anode provided on the substrate, an organic light emitting layer provided on the anode, an electron transport layer provided on the organic light emitting layer, and a cathode provided on the electron transport layer. When working, it emits holes from the anode and electrons from the cathode to the organic light-emitting layer, combines these electrons and holes to generate exciting electron-hole pairs, and converts the exciting electron-hole pairs from the excited state to the ground state Realize luminescence.
- touch devices have become the main human-computer interaction means for personal mobile communication devices and integrated information terminals, such as tablet computers, smart phones, and super laptops.
- touch devices can be divided into four main types: resistive touch devices, capacitive touch devices, infrared touch devices, and surface wave touch devices.
- Pressure touch (Force Touch) technology is a new type of touch technology, which can vary according to the amount of pressure applied to the touch device.
- Pressure touch display devices are more and more used in the display technology field of various industries. When a user touches and presses the pressure touch display device, the pressure touch display device can sense the pressure of the pressure to generate a difference.
- the existing pressure touch display device includes: a pressure sensitive layer 100, a display layer 200, a touch layer 300, and a cover 400 stacked in sequence.
- the touch layer 300 and The pressure sensitive layer 100 is provided as two independent film layers on both sides of the display layer 200, which will increase the thickness of the device, which does not conform to the current trend of thinner products.
- the purpose of the present invention is to provide a pressure touch display device, which can realize pressure touch without increasing the thickness of the product and enhance the competitiveness of the product.
- the purpose of the present invention is also to provide a pressure touch method, which can realize pressure touch without increasing the thickness of the product and enhance the competitiveness of the product.
- the present invention provides a pressure touch display device, which includes a substrate, an OLED layer provided on the substrate, a strain layer provided on the OLED layer, and a touch control panel provided on the strain layer.
- the OLED layer includes an anode provided on the substrate, a light-emitting layer provided on the anode, and a cathode with a pressure detection pattern provided on the light-emitting layer;
- touch detection is performed through the touch function layer, and pressure detection is performed through the cooperation of the cathode and the touch function layer.
- the touch function layer includes a touch substrate layer arranged on a strained layer, a plurality of parallel and spaced sensing electrode chains arranged on the touch substrate layer and arranged on the touch substrate layer A plurality of driving electrode chains arranged in parallel and spaced apart, the sensing electrode chains and the driving electrode chains are insulated and crossed;
- the cathode includes a plurality of parallel and spaced electrode strips arranged opposite to the plurality of drive electrode chains, and the pressure detection pattern is formed by the plurality of parallel and spaced electrode strips.
- Each sensing electrode chain includes a plurality of sensing electrodes arranged at intervals and a first connecting portion at the intersection of the sensing electrode chain and the driving electrode chain, and two adjacent sensing electrodes are electrically connected through the first connecting portion;
- Each drive electrode chain includes a plurality of drive electrodes arranged at intervals and a second connection part located at the intersection of the drive electrode chain and the sensing electrode chain. Two adjacent drive electrodes are electrically connected through the second connection part.
- the second connection part is insulated from the first connection part.
- the strain layer includes a deformed part and a support frame surrounding the deformed part.
- the material of the deformed part is liquid glue.
- the pressure touch display device also includes an optical transparent glue arranged on the touch function layer and a protective cover arranged on the optical transparent glue.
- the present invention also provides a pressure touch method, including the following steps:
- Step S1 Provide a pressure touch display device, including a substrate, an OLED layer provided on the substrate, a strain layer provided on the OLED layer, and a touch function layer provided on the strain layer;
- the OLED layer includes an anode provided on the substrate, a light-emitting layer provided on the anode, and a cathode with a pressure detection pattern provided on the light-emitting layer;
- Step S2 enter the first stage, the OLED layer emits light while performing touch detection through the touch function layer;
- Step S3 Entering the second stage, the OLED layer stops emitting light and simultaneously performs pressure detection through the cooperation of the cathode and the touch function layer.
- the touch function layer includes a touch substrate layer provided on the strain layer, a plurality of parallel and spaced sensing electrode chains provided on the touch substrate layer, and A plurality of driving electrode chains arranged in parallel and spaced apart on the touch substrate layer, the sensing electrode chains and the driving electrode chains are insulated and crossed;
- the cathode includes a plurality of parallel and spaced electrode strips arranged opposite to the plurality of drive electrode chains, and the pressure detection pattern is formed by the plurality of parallel and spaced electrode strips.
- a first capacitor is formed between the sensing electrode chain and the driving electrode chain, and a second capacitor is formed between the driving electrode chain and the electrode bar;
- step S2 touch detection is performed by detecting the change of the first capacitance
- step S3 pressure detection is performed by detecting the change of the second capacitance.
- a first voltage is applied to the driving electrode chain, and an OLED driving voltage is applied to the electrode strips, and the change in the first capacitance is determined by detecting the time it takes for the sensing electrode chain to reach the first voltage to Complete touch detection;
- step S3 a second voltage is applied to the driving electrode chain, and the application of the OLED driving voltage to the electrode strips is stopped, and the change of the second capacitance is determined by detecting the time taken for the electrode strips to reach the second voltage. Complete pressure detection.
- the strain layer includes a deformed part and a support frame surrounding the deformed part.
- the material of the deformed part is liquid glue.
- the pressure touch display device further includes an optical transparent glue arranged on the touch function layer and a protective cover arranged on the optical transparent glue.
- Each sensing electrode chain includes a plurality of sensing electrodes arranged at intervals and a first connecting portion at the intersection of the sensing electrode chain and the driving electrode chain, and two adjacent sensing electrodes are electrically connected through the first connecting portion;
- Each drive electrode chain includes a plurality of drive electrodes arranged at intervals and a second connection part located at the intersection of the drive electrode chain and the sensing electrode chain. Two adjacent drive electrodes are electrically connected through the second connection part.
- the second connection part is insulated from the first connection part.
- the present invention provides a pressure touch display device, which includes a substrate, an OLED layer provided on the substrate, a strain layer provided on the OLED layer, and a touch screen provided on the strain layer.
- Control function layer the OLED layer includes an anode provided on the substrate, a light-emitting layer provided on the anode, and a cathode with a pressure detection pattern provided on the light-emitting layer;
- the touch function layer performs touch detection, and pressure detection is performed through the cooperation of the cathode and the touch function layer.
- FIG. 1 is a structural diagram of a conventional pressure touch display device
- FIG. 2 is a structural diagram of the pressure touch display device of the present invention.
- FIG. 3 is a detailed structure diagram of the OLED layer of the pressure touch display device of the present invention.
- FIG. 4 is a detailed structure diagram of the cathode and the touch layer of the pressure touch display device of the present invention.
- FIG. 5 is a schematic diagram of the corresponding relationship between the driving electrode chain, the sensing electrode chain and the cathode of the pressure touch display device of the present invention
- FIG. 6 is a detailed structural diagram of the driving electrode chain, the sensing electrode chain and the cathode of the pressure touch display device of the present invention.
- FIG. 7 is a driving waveform diagram of the pressure touch display device of the present invention.
- FIG. 8 is a flowchart of the pressure touch method of the present invention.
- the present invention provides a pressure touch display device, including a substrate 1, an OLED layer 2 provided on the substrate 1, a strain layer 3 provided on the OLED layer 2, and a strain layer 3 provided on the strain
- the OLED layer 2 includes an anode 21 provided on the substrate 1, a light-emitting layer 22 provided on the anode 21, and a pressure-sensitive layer 22 provided on the light-emitting layer 22
- the cathode 23 of the detection pattern during pressure touch, touch detection is performed through the touch function layer 5, and pressure detection is performed through the cathode 23 and the touch function layer 5 in cooperation.
- the pressure touch display device further includes an optical transparent glue 6 arranged on the touch layer 5 and a protective cover 7 arranged on the optical transparent glue 6.
- the substrate 1 includes a base substrate 11 and a thin film transistor (Thin Film Transistor) located on the base substrate 11 Transistor, TFT) layer 12, the TFT layer 12 is formed with a plurality of TFTs for driving the OLED to emit light.
- TFT Thin Film Transistor
- the structure and characteristics of the TFTs can be selected from various existing TFTs according to needs.
- the TFT layer 12 It includes a gate located on the base substrate 11, a gate insulating layer located on the gate and the base substrate 11, a semiconductor layer located on the gate insulating layer, the gate insulating layer and The interlayer insulating layer on the semiconductor layer, the source and drain electrodes on the interlayer insulating layer, and the passivation layer on the source, drain, and the interlayer insulating layer, the source and drain electrodes
- the two via holes are respectively in contact with both ends of the semiconductor layer.
- the OLED layer 2 includes an anode 21 provided on the substrate 1, a light emitting layer 22 provided on the anode 21, and a cathode 23 provided on the light emitting layer 22.
- the OLED layer 2 further includes a pixel definition layer 24 provided on the substrate 1 and a thin film encapsulation layer 25 provided on the cathode 23, and the anode 21 is formed on the pixel definition layer.
- the multiple anodes 21 are arranged in an array, and the pixel defining layer 24 is provided with multiple pixels corresponding to the multiple anodes 21 respectively Defining grooves 241, each pixel defining groove 241 exposes an anode 21, the light-emitting layer 22 is arranged in the pixel defining groove 241, the cathode 23 is arranged on the light-emitting layer 22 and the pixel defining layer 24, the anode 21 is electrically connected to the TFT layer 12.
- the strain layer 3 includes a deformed portion 31 and a support frame 4 surrounding the deformed portion 31.
- the material of the deformed portion 31 is liquid glue.
- the touch function layer 5 includes a touch substrate layer 51 arranged on the strain layer 3, and a plurality of parallel and spaced sensors arranged on the touch substrate layer 51.
- the electrode chain 52 and a plurality of parallel and spaced drive electrode chains 53 arranged on the touch substrate layer 51, the sensing electrode chain 52 and the driving electrode chain 53 are insulated and crossed;
- the cathode 23 includes
- the plurality of driving electrode chains 53 are opposed to a plurality of electrode bars 231 arranged in parallel and spaced apart, and a pressure touch pattern is formed by the plurality of electrode bars 231 arranged in parallel and spaced apart.
- the driving electrode chain 53 and the sensing electrode chain 52 are integrated on the touch substrate layer 51.
- the driving electrode chain 53 and the sensing electrode chain 52 cross each other perpendicularly.
- the driving electrode chain 53 extends longitudinally, and the sensing electrode chain 52 extends laterally.
- Each electrode strip 231 of the cathode 23 is spaced in parallel with the driving electrode chain 53 and is arranged at a horizontal interval and extends longitudinally.
- each sensing electrode chain 52 includes a plurality of sensing electrodes 521 arranged at intervals and a first connecting portion 522 located at the intersection of the sensing electrode chain 52 and the driving electrode chain 53, adjacent to each other.
- the two sensing electrodes 521 are electrically connected through the first connecting portion 522;
- each driving electrode chain 53 includes a plurality of spaced driving electrodes 531 and a second connecting portion 532 located at the intersection of the driving electrode chain 53 and the sensing electrode chain 52 ,
- the two adjacent driving electrodes 531 are electrically connected through the second connecting portion 532, and the second connecting portion 532 is insulated from the first connecting portion 522.
- the first connecting portion 522 is located at the second Above the connecting portion 523, an insulating layer is formed between the first connecting portion 522 and the second connecting portion 523, and the first connecting portion 522 is connected to two sensing electrodes 521 through two vias passing through the insulating layer.
- an electrode strip 231 is provided directly below each driving electrode chain 53.
- the sensing electrode chain 52, the driving electrode chain 53 and the cathode 23 can be made of gold, silver, copper, lithium, Metal materials such as sodium, potassium, magnesium, aluminum, zinc and combinations thereof, conductive metal oxide materials such as indium tin oxide, aluminum-doped zinc oxide, antimony-doped tin oxide, and combinations thereof can also be used.
- the inductive electrode chain 52 Preferably, the inductive electrode chain 52.
- the materials of the driving electrode chain 53 and the cathode 23 are indium tin oxide with excellent conductivity and light transmission properties.
- a first capacitor C1 is formed between the sensing electrode chain 52 and the driving electrode chain 53, and the touch is performed by detecting the change of the first capacitor C1.
- the driving electrode chain 53 and the electrode strips 231 form a second capacitor C2, by detecting the change of the second capacitor C2, pressure detection.
- the working process of the pressure touch display device sequentially includes a first stage t1 and a second stage t2; in the first stage t1, a first voltage V1 is applied to the driving electrode chain 53, And apply the OLED driving voltage to the electrode bar 231; in the second phase t2, apply the second voltage V2 to the driving electrode chain 53 and stop applying the OLED driving voltage to the electrode bar 231.
- the change of the first capacitance C1 is determined to complete the touch detection; in the second stage t2, by detecting the electrode strip The time taken for 231 to reach the second voltage V2 determines the change of the second capacitor C2 to complete the pressure detection.
- the deformable layer 31 when pressure is applied to the pressure touch display device, the deformable layer 31 will be squeezed, which will reduce the distance between the two electrode plates of the second capacitor C2, thereby changing the size of the second capacitor C2. Therefore, the size of the second capacitor C2 can reflect the size of the pressure applied to the pressure touch display device.
- the detailed working process of the pressure touch display device of the present invention is: applying a pulse signal VD to the driving electrode chain 53, the pulse high voltage of the pulse signal in the first stage t1 is the first voltage V1, In the second stage, the pulse high voltage is the second voltage V2.
- the first capacitor C1 is charged by the driving electrode chain 53 and the time required for the sensing electrode chain 52 to reach the first voltage V1 is detected to determine Whether the size of the first capacitor C1 has changed, and if the time required for the sensing electrode chain 52 to reach the first voltage V1 does not change, it is determined that the size of the first capacitor C1 remains unchanged and there is no touch. 52.
- the electrode strip 231 is applied with an OLED driving voltage to The light-emitting layer 22 of the OLED is promoted to emit light, and its voltage is fixed without being affected by the driving electrode chain 53; and in the second stage t2, the OLED driving voltage on the electrode strip 231 is removed, and the voltage on the electrode strip 231 will be The pulse signal VD on the driving electrode chain 53 is affected. At this time, the pulse high voltage of the pulse signal VD is the second voltage V2.
- the second capacitor C2 By detecting the time required for the electrode strip 231 to reach the second voltage V2, it is determined whether the second capacitor C2 occurs If the time required for the electrode strip 231 to reach the second voltage V2 does not change, it is determined that the size of the second capacitor C2 remains unchanged and there is no pressure, and if the time required for the electrode strip 231 to reach the second voltage V2 changes , It is determined that the size of the second capacitor C2 has changed, there is pressure, and the pressure is determined according to how much the size of the second capacitor C2 has changed.
- the second voltage V2 is much larger than the first voltage V1. Because the coupling area between the driving electrode chain 53 and the electrode strip 231 is large, the second voltage V2 is much larger than the first voltage V1, which can shorten The charging time and setting the second voltage V2 to be higher can also eliminate the interference of the conductive structure in the TFT layer 2 and improve the pressure sensitivity sensitivity.
- the present invention also provides a pressure touch method, including the following steps:
- Step S1 Provide a pressure touch display device, including a substrate 1, an OLED layer 2 provided on the substrate 1, a strain layer 3 provided on the OLED layer 2, and a touch screen provided on the strain layer 3 Control function layer 5; the OLED layer 2 includes an anode 21 provided on the substrate 1, a light-emitting layer 22 provided on the anode 21, and a cathode with a pressure detection pattern provided on the light-emitting layer 22 twenty three.
- the pressure touch display device further includes an optical transparent glue 6 arranged on the touch layer 5 and a protective cover 7 arranged on the optical transparent glue 6.
- the substrate 1 includes a base substrate 11 and a thin film transistor (Thin Film Transistor) located on the base substrate 11 Transistor, TFT) layer 12, the TFT layer 12 is formed with a plurality of TFTs for driving the OLED to emit light.
- TFT Thin Film Transistor
- the structure and characteristics of the TFTs can be selected from various existing TFTs according to needs.
- the TFT layer 12 It includes a gate located on the base substrate 11, a gate insulating layer located on the gate and the base substrate 11, a semiconductor layer located on the gate insulating layer, the gate insulating layer and The interlayer insulating layer on the semiconductor layer, the source and drain electrodes on the interlayer insulating layer, and the passivation layer on the source, drain, and the interlayer insulating layer, the source and drain electrodes
- the two via holes are respectively in contact with both ends of the semiconductor layer.
- the OLED layer 2 includes an anode 21 provided on the substrate 1, a light emitting layer 22 provided on the anode 21, and a cathode 23 provided on the light emitting layer 22.
- the OLED layer 2 further includes a pixel definition layer 24 provided on the substrate 1 and a thin film encapsulation layer 25 provided on the cathode 23, and the anode 21 is formed on the pixel definition layer.
- the multiple anodes 21 are arranged in an array, and the pixel defining layer 24 is provided with multiple pixels corresponding to the multiple anodes 21 respectively Defining grooves 241, each pixel defining groove 241 exposes an anode 21, the light-emitting layer 22 is arranged in the pixel defining groove 241, the cathode 23 is arranged on the light-emitting layer 22 and the pixel defining layer 24, the anode 21 is electrically connected to the TFT layer 12.
- the strain layer 3 includes a deformed portion 31 and a support frame 4 surrounding the deformed portion 31.
- the material of the deformed portion 31 is liquid glue.
- the touch function layer 5 includes a touch substrate layer 51 arranged on the strain layer 3, and a plurality of parallel and spaced sensors arranged on the touch substrate layer 51.
- the electrode chain 52 and a plurality of parallel and spaced drive electrode chains 53 arranged on the touch substrate layer 51, the sensing electrode chain 52 and the driving electrode chain 53 are insulated and crossed;
- the cathode 23 includes
- the plurality of driving electrode chains 53 are opposed to a plurality of electrode bars 231 arranged in parallel and spaced apart, and a pressure touch pattern is formed by the plurality of electrode bars 231 arranged in parallel and spaced apart.
- the driving electrode chain 53 and the sensing electrode chain 52 are integrated on the touch substrate layer 51.
- the driving electrode chain 53 and the sensing electrode chain 52 cross each other perpendicularly.
- the driving electrode chain 53 extends longitudinally, and the sensing electrode chain 52 extends laterally.
- Each electrode strip 231 of the cathode 23 is spaced in parallel with the driving electrode chain 53 and is arranged at a horizontal interval and extends longitudinally.
- each sensing electrode chain 52 includes a plurality of sensing electrodes 521 arranged at intervals and a first connecting portion 522 located at the intersection of the sensing electrode chain 52 and the driving electrode chain 53, adjacent to each other.
- the two sensing electrodes 521 are electrically connected through the first connecting portion 522;
- each driving electrode chain 53 includes a plurality of spaced driving electrodes 531 and a second connecting portion 532 located at the intersection of the driving electrode chain 53 and the sensing electrode chain 52 ,
- the two adjacent driving electrodes 531 are electrically connected through the second connecting portion 532, and the second connecting portion 532 is insulated from the first connecting portion 522.
- the first connecting portion 522 is located at the second Above the connecting portion 523, an insulating layer is formed between the first connecting portion 522 and the second connecting portion 523, and the first connecting portion 522 is connected to two sensing electrodes 521 through two vias passing through the insulating layer.
- an electrode strip 231 is provided directly below each driving electrode chain 53.
- the sensing electrode chain 52, the driving electrode chain 53 and the cathode 23 can be made of gold, silver, copper, lithium, Metal materials such as sodium, potassium, magnesium, aluminum, zinc and combinations thereof, conductive metal oxide materials such as indium tin oxide, aluminum-doped zinc oxide, antimony-doped tin oxide, and combinations thereof can also be used.
- the inductive electrode chain 52 Preferably, the inductive electrode chain 52.
- the materials of the driving electrode chain 53 and the cathode 23 are indium tin oxide with excellent conductivity and light transmission properties.
- Step S2 enter the first stage t1, the OLED layer 2 emits light and touch detection is performed through the touch function layer 5 at the same time.
- Step S3 entering the second stage t2, the OLED layer 2 stops emitting light and at the same time, the cathode 23 cooperates with the touch function layer 5 to perform pressure detection.
- a first capacitor C1 is formed between the sensing electrode chain 52 and the driving electrode chain 53, and a second capacitor C2 is formed between the driving electrode chain 53 and the electrode bar 231; the step S2 In the step S3, the touch detection is performed by detecting the change of the first capacitor C1, and the pressure detection is performed by detecting the change of the second capacitor C2 in the step S3.
- the first voltage V1 is applied to the driving electrode chain 53, and the OLED driving voltage is applied to the electrode bar 231; in the step S3, the The driving electrode chain 53 applies the second voltage V2, and stops applying the OLED driving voltage to the electrode strips 231.
- step S2 by detecting the time taken for the sensing electrode chain 52 to reach the first voltage V1, the change of the first capacitance C1 is determined to complete the touch detection; in the step S3, by detecting the electrode strip The time taken for 231 to reach the second voltage V2 determines the change of the second capacitor C2 to complete the pressure detection.
- the deformable layer 31 when pressure is applied to the pressure touch display device, the deformable layer 31 will be squeezed, which will reduce the distance between the two electrode plates of the second capacitor C2, thereby changing the size of the second capacitor C2. Therefore, the size of the second capacitor C2 can reflect the size of the pressure applied to the pressure touch display device.
- the detailed process of step S2 and step S3 of the pressure touch method of the present invention includes: applying a pulse signal VD to the driving electrode chain 53, the pulse high voltage of the pulse signal in the first stage t1 is the first A voltage V1.
- the pulse high voltage in the second stage is the second voltage V2.
- the first capacitor C1 is charged by the driving electrode chain 53 and the sensing electrode chain 52 is detected to reach the first voltage V1.
- Time determine whether the size of the first capacitor C1 has changed. If the time required for the sensing electrode chain 52 to reach the first voltage V1 does not change, it is determined that the size of the first capacitor C1 does not change, and there is no touch.
- the electrode strip 231 is applied The OLED driving voltage is used to promote the light-emitting layer 22 of the OLED to emit light, and its voltage is fixed without being affected by the driving electrode chain 53; and in the second stage t2, the OLED driving voltage on the electrode strip 231 is removed, and the electrode strip 231 is now The voltage of the drive electrode chain 53 will be affected by the pulse signal VD. At this time, the pulse high voltage of the pulse signal VD is the second voltage V2.
- the second Whether the capacitance C2 has changed if the time required for the electrode strip 231 to reach the second voltage V2 does not change, it is determined that the size of the second capacitor C2 remains unchanged and there is no pressure. If the electrode strip 231 reaches the second voltage V2 When the required time changes, it is determined that the size of the second capacitor C2 has changed. There is pressure and the pressure is determined according to how much the size of the second capacitor C2 has changed.
- the second voltage V2 is much larger than the first voltage V1. Because the coupling area between the driving electrode chain 53 and the electrode strip 231 is large, the second voltage V2 is much larger than the first voltage V1, which can shorten The charging time and setting the second voltage V2 to be higher can also eliminate the interference of the conductive structure in the TFT layer 2 and improve the pressure sensitivity sensitivity.
- the present invention provides a pressure touch display device, which includes a substrate, an OLED layer provided on the substrate, a strain layer provided on the OLED layer, and a touch control device provided on the strain layer.
- Functional layer the OLED layer includes an anode provided on the substrate, a light-emitting layer provided on the anode, and a cathode with a pressure detection pattern provided on the light-emitting layer;
- the touch function layer performs touch detection, and the cathode cooperates with the touch function layer to perform pressure detection.
Abstract
一种压力触控显示装置及压力触控方法。所述压力触控显示装置包括基板(1)、设于所述基板(1)上的OLED层(2)、设于所述OLED层(2)上的应变层(3)及设于所述应变层(3)上的触控功能层(5)；所述OLED层(2)包括设于所述基板(1)上的阳极(21)、设于所述阳极(21)上的发光层(22)及设于所述发光层(22)上的具有压力侦测图案的阴极(23)；压力触控时，通过所述触控功能层(5)进行触摸侦测，通过所述阴极(23)与所述触控功能层(5)配合进行压力侦测，通过复用OLED的阴极(23)作为压力感应电极，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。
Description
本发明涉及显示技术领域，尤其涉及一种压力触控显示装置及压力触控方法。
平面显示器件具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。现有的平面显示器件主要包括液晶显示器件（Liquid
Crystal Display，LCD）及有机发光二极管显示器件（Organic Light Emitting Display，OLED）。
有机发光二极管显示器件由于同时具备自发光，不需背光源、对比度高、厚度薄、视角广、反应速度快、可用于挠曲性面板、使用温度范围广、构造及制程较简单等优异特性，被认为是下一代平面显示器的新兴应用技术。
OLED显示装置通常包括：基板、设于基板上的阳极、设于阳极上的有机发光层，设于有机发光层上的电子传输层、及设于电子传输层上的阴极。工作时向有机发光层发射来自阳极的空穴和来自阴极的电子，将这些电子和空穴组合产生激发性电子-空穴对，并将激发性电子-空穴对从受激态转换为基态实现发光。
触控装置因具有易操作性、直观性和灵活性等优点，已成为个人移动通许设备和综合信息终端，如平板电脑、智能手机，以及超级笔记本电脑的主要人机交互手段。触控装置根据不同的触控原理可分为电阻触控装置、电容触控装置、红外触控装置和表面波触控装置等四种主要类型。压力触控(Force
Touch)技术是一种新型的触控技术，其能够根据施加到触控装置上的压力的大小不同而。压力触控显示装置越来越多的应用于各行业的显示技术领域中，当用户触摸按压压力触控显示装置时，压力触控显示装置中能够感测按压的压力大小，以此来产生不同信号，从而使得用户仅通过按压触控区的力度变化，就能获得不同的反馈信息，进而可提供更多变的使用体验。如图1所示，现有的压力触控显示装置包括：依次层叠的压力感应层100、显示层200、触控层300及盖板400，该压力触控显示装置中，触控层300及压力感应层100作为两个独立的膜层分设于显示层200的两侧，会增加装置的厚度，不符合目前产品薄形化的趋势。
本发明的目的在于提供一种压力触控显示装置，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。
本发明的目的还在于提供一种压力触控方法，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。
为实现上述目的，本发明提供一种压力触控显示装置，包括基板、设于所述基板上的OLED层、设于所述OLED层上的应变层及设于所述应变层上的触控功能层；
所述OLED层包括设于所述基板上的阳极、设于所述阳极上的发光层及设于所述发光层上的具有压力侦测图案的阴极；
压力触控时，通过所述触控功能层进行触摸侦测，通过所述阴极与所述触控功能层配合进行压力侦测。
所述触控功能层包括设于应变层上的触控基材层、设于所述触控基材层上的多条平行间隔排列的感应电极链及设于所述触控基材层上的多条平行间隔排列的驱动电极链，所述感应电极链与所述驱动电极链绝缘交叉；
所述阴极包括分别与所述多条驱动电极链相对设置的多个平行间隔排列的电极条，通过所述多个平行间隔排列的电极条形成所述压力侦测图案。
每一条感应电极链均包括多个间隔排列的感应电极及位于该感应电极链与驱动电极链的交叉处的第一连接部，相邻的两感应电极通过第一连接部电性连接；
每一条驱动电极链包括多个间隔排列的驱动电极及位于该驱动电极链与感应电极链的交叉处的第二连接部，相邻的两驱动电极通过第二连接部电性连接，所述第二连接部与第一连接部绝缘。
所述应变层包括形变部及包围所述形变部的支撑框。
所述形变部的材料为液态胶水。
压力触控显示装置还包括设于触控功能层上的光学透明胶及设于所述光学透明胶上的保护盖板。
本发明还提供一种压力触控方法，包括如下步骤：
步骤S1、提供一压力触控显示装置，包括基板、设于所述基板上的OLED层、设于所述OLED层上的应变层及设于所述应变层上的触控功能层；所述OLED层包括设于所述基板上的阳极、设于所述阳极上的发光层及设于所述发光层上的具有压力侦测图案的阴极；
步骤S2、进入第一阶段，所述OLED层发光同时通过所述触控功能层进行触摸侦测；
步骤S3、进入第二阶段，所述OLED层停止发光同时通过所述阴极与所述触控功能层配合进行压力侦测。
所述步骤S1中，所述触控功能层包括设于应变层上的触控基材层、设于所述触控基材层上的多条平行间隔排列的感应电极链及设于所述触控基材层上的多条平行间隔排列的驱动电极链，所述感应电极链与所述驱动电极链绝缘交叉；
所述阴极包括分别与所述多条驱动电极链相对设置的多个平行间隔排列的电极条，通过所述多个平行间隔排列的电极条形成所述压力侦测图案。
所述感应电极链和驱动电极链之间形成第一电容，所述驱动电极链和电极条之间形成第二电容；
所述步骤S2中通过侦测第一电容的变化，进行触摸侦测，所述步骤S3中通过侦测第二电容的变化，进行压力侦测。
所述步骤S2中，向所述驱动电极链施加第一电压，并向所述电极条施加OLED驱动电压，通过侦测感应电极链达到第一电压所用的时间，确定第一电容的变化，以完成触摸侦测；
所述步骤S3中，向所述驱动电极链施加第二电压，并停止向所述电极条施加OLED驱动电压，通过侦测电极条达到第二电压所用的时间，确定第二电容的变化，以完成压力侦测。
所述步骤S1中，所述应变层包括形变部及包围所述形变部的支撑框。
所述形变部的材料为液态胶水。
所述步骤S1中，所述压力触控显示装置还包括设于触控功能层上的光学透明胶及设于所述光学透明胶上的保护盖板。
每一条感应电极链均包括多个间隔排列的感应电极及位于该感应电极链与驱动电极链的交叉处的第一连接部，相邻的两感应电极通过第一连接部电性连接；
每一条驱动电极链包括多个间隔排列的驱动电极及位于该驱动电极链与感应电极链的交叉处的第二连接部，相邻的两驱动电极通过第二连接部电性连接，所述第二连接部与第一连接部绝缘。
本发明的有益效果：本发明提供一种压力触控显示装置，包括基板、设于所述基板上的OLED层、设于所述OLED层上的应变层及设于所述应变层上的触控功能层；所述OLED层包括设于所述基板上的阳极、设于所述阳极上的发光层及设于所述发光层上的具有压力侦测图案的阴极；压力触控时，通过所述触控功能层进行触摸侦测，通过所述阴极与所述触控功能层配合进行压力侦测，通过复用OLED的阴极作为压力感应电极，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。本发明还提供一种压力触控方法，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为现有的压力触控显示装置的结构图；
图2为本发明的压力触控显示装置的结构图；
图3为本发明的压力触控显示装置的OLED层的详细结构图；
图4为本发明的压力触控显示装置的阴极及触控层的详细结构图；
图5为本发明的压力触控显示装置的驱动电极链、感应电极链及阴极的对应关系示意图；
图6为本发明的压力触控显示装置的驱动电极链、感应电极链及阴极的详细结构图；
图7为本发明的压力触控显示装置的驱动波形图；
图8为本发明的压力触控方法的流程图。
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2，本发明提供一种压力触控显示装置，包括基板1、设于所述基板1上的OLED层2、设于所述OLED层2上的应变层3及设于所述应变层3上的触控功能层5；所述OLED层2包括设于所述基板1上的阳极21、设于所述阳极21上的发光层22及设于所述发光层22上的具有压力侦测图案的阴极23；压力触控时，通过所述触控功能层5进行触摸侦测，通过所述阴极23与所述触控功能层5配合进行压力侦测。
具体地，如图2所示，所述压力触控显示装置还包括设于触控层5上的光学透明胶6及设于所述光学透明胶6上的保护盖板7。
进一步地，所述基板1包括衬底基板11及位于所述衬底基板11上的薄膜晶体管（Thin Film
Transistor，TFT）层12，所述TFT层12中形成有多个用于驱动OLED发光的TFT，所述TFT的结构及特性根据需要选择现有的各类TFT，优选地，所述TFT层12包括位于所述衬底基板11上的栅极、位于所述栅极及衬底基板11上的栅极绝缘层、位于所述栅极绝缘层上的半导体层、位于所述栅极绝缘层及半导体层上的层间绝缘层、位于所述层间绝缘层上的源极和漏极及位于所述源极、漏极及层间绝缘层上的钝化层，所述源极和漏极分别通过两过孔与所述半导体层的两端接触。
具体地，如图3所示，所述OLED层2包括设于所述基板1上的阳极21、设于所述阳极21上的发光层22及设于所述发光层22上的阴极23。
进一步地，如图3所示，所述OLED层2还包括设于基板1上的像素定义层24及设于所述阴极23上的薄膜封装层25，所述阳极21形成于所述像素定义层24和基板1之间，且所述阳极21数量为多个，所述多个阳极21阵列排布，所述像素定义层24中设有分别与所述多个阳极21对应的多个像素定义槽241，每一个像素定义槽241暴露出一个阳极21，所述发光层22设于像素定义槽241内，所述阴极23设于所述发光层22及像素定义层24上，所述阳极21与所述TFT层12电性连接。
具体地，所述应变层3包括形变部31及包围所述形变部31的支撑框4，优选地，所述形变部31的材料为液态胶水。
具体地，如图4所示，所述触控功能层5包括设于应变层3上的触控基材层51、设于所述触控基材层51上的多条平行间隔排列的感应电极链52及设于所述触控基材层51上的多条平行间隔排列的驱动电极链53，所述感应电极链52与所述驱动电极链53绝缘交叉；所述阴极23包括分别与多条驱动电极链53相对设置的多个平行间隔排列的电极条231，通过所述多个平行间隔排列的电极条231形成压力触控图案。
需要说明的是，如图5所示，所述驱动电极链53和感应电极链52集成于所述触控基材层51上，优选地，驱动电极链53和感应电极链52相互垂直交叉，所述驱动电极链53纵向延伸，所述感应电极链52横向延伸，所述阴极23的各个电极条231与驱动电极链53平行间隔，且沿横向间隔排列并沿纵向延伸。
进一步地，如图6所示，每一条感应电极链52均包括多个间隔排列的感应电极521及位于该感应电极链52与驱动电极链53的交叉处的第一连接部522，相邻的两感应电极521通过第一连接部522电性连接；每一条驱动电极链53包括多个间隔排列的驱动电极531及位于该驱动电极链53与感应电极链52的交叉处的第二连接部532，相邻的两驱动电极531通过第二连接部532电性连接，所述第二连接部532与第一连接部522绝缘，其中，在本发明的实施例中第一连接部522位于第二连接部523上方，且第一连接部522和第二连接部523之间形成有绝缘层，所述第一连接部522通过两穿越所述绝缘层的过孔连接两个感应电极521。
值得一提的是，每条驱动电极链53的正下方均对应设有一个电极条231，所述感应电极链52、驱动电极链53及阴极23的材料可以采用金、银、铜、锂、钠、钾、镁、铝、锌等金属材料及其组合，也可采用氧化铟锡、掺铝氧化锌、掺锑氧化锡等导电金属氧化物材料及其组合，优选地，所述感应电极链52、驱动电极链53及阴极23的材料均为导电及透光性能优良的氧化铟锡。
具体地，如图4所示，本发明的压力触控显示装置中，所述感应电极链52和驱动电极链53之间形成第一电容C1，通过侦测第一电容C1的变化，进行触摸侦测；所述驱动电极链53和电极条231之间形成第二电容C2，通过侦测第二电容C2的变化，进行压力侦测。
具体地，如图7所示，所述压力触控显示装置的工作过程依次包括第一阶段t1及第二阶段t2；在第一阶段t1，向所述驱动电极链53施加第一电压V1，并向所述电极条231施加OLED驱动电压；在第二阶段t2，向所述驱动电极链53施加第二电压V2，并停止向所述电极条231施加OLED驱动电压。
进一步地，在第一阶段t1，通过侦测感应电极链52达到第一电压V1所用的时间，确定第一电容C1的变化，以完成触摸侦测；在第二阶段t2，通过侦测电极条231达到第二电压V2所用的时间，确定第二电容C2的变化，以完成压力侦测。
需要说明的是，当压力触控显示装置上被施加压力时，形变层31将被挤压，从而导致第二电容C2的两电极板之间的距离减少，进而改变第二电容C2的大小，因此，第二电容C2的大小能够反映出施加到所述压力触控显示装置上的压力的大小。
如图7所示，本发明的压力触控显示装置的详细工作过程为：向驱动电极链53施加脉冲信号VD，所述脉冲信号的在第一阶段t1的脉冲高电压为第一电压V1，在第二阶段的脉冲高电压为第二电压V2，在第一阶段t1通过驱动电极链53为第一电容C1充电，并侦测感应电极链52达到第一电压V1所需要的时间，判断所述第一电容C1的大小是否发生变化，若所述感应电极链52达到第一电压V1所需要的时间不变，则判定第一电容C1的大小不变，无触摸，若所述感应电极链52达到第一电压V1所需要的时间改变，则判定第一电容C1的大小改变，有触摸并识别触摸位置，与此同时在第一阶段t1，所述电极条231上被施加OLED驱动电压以促使OLED的发光层22发光，其电压固定不受驱动电极链53的影响；而在第二阶段t2，所述电极条231上的OLED驱动电压被撤去，此时电极条231上的电压将受到驱动电极链53上的脉冲信号VD的影响，此时脉冲信号VD的脉冲高电压为第二电压V2，通过侦测电极条231达到第二电压V2所需的时间，判断第二电容C2是否发生变化，若所述电极条231达到第二电压V2所需要的时间不变，则判定第二电容C2的大小不变，无压力，若所述电极条231达到第二电压V2所需要的时间改变，则判定第二电容C2的大小改变，有压力并根据第二电容C2的大小改变的多少判断压力的大小，最后，汇总感应电极链52反馈的触摸位置信息及电极条231反馈的压力大小信息，可以得到触摸的位置坐标及压力大小。
值得一提的是，所述第二电压V2远远大于第一电压V1，由于驱动电极链53与电极条231之间的耦合面积大，设置二电压V2远远大于第一电压V1，能够缩短充电时间，且设置第二电压V2较高，还能够排除TFT层2中的导电结构的干扰，提升压力感应灵敏度。
请参阅图8，本发明还提供一种压力触控方法，包括如下步骤：
步骤S1、提供一压力触控显示装置，包括基板1、设于所述基板1上的OLED层2、设于所述OLED层2上的应变层3及设于所述应变层3上的触控功能层5；所述OLED层2包括设于所述基板1上的阳极21、设于所述阳极21上的发光层22及设于所述发光层22上的具有压力侦测图案的阴极23。
具体地，如图2所示，所述压力触控显示装置还包括设于触控层5上的光学透明胶6及设于所述光学透明胶6上的保护盖板7。
进一步地，所述基板1包括衬底基板11及位于所述衬底基板11上的薄膜晶体管（Thin Film
Transistor，TFT）层12，所述TFT层12中形成有多个用于驱动OLED发光的TFT，所述TFT的结构及特性根据需要选择现有的各类TFT，优选地，所述TFT层12包括位于所述衬底基板11上的栅极、位于所述栅极及衬底基板11上的栅极绝缘层、位于所述栅极绝缘层上的半导体层、位于所述栅极绝缘层及半导体层上的层间绝缘层、位于所述层间绝缘层上的源极和漏极及位于所述源极、漏极及层间绝缘层上的钝化层，所述源极和漏极分别通过两过孔与所述半导体层的两端接触。
具体地，如图3所示，所述OLED层2包括设于所述基板1上的阳极21、设于所述阳极21上的发光层22及设于所述发光层22上的阴极23。
进一步地，如图3所示，所述OLED层2还包括设于基板1上的像素定义层24及设于所述阴极23上的薄膜封装层25，所述阳极21形成于所述像素定义层24和基板1之间，且所述阳极21数量为多个，所述多个阳极21阵列排布，所述像素定义层24中设有分别与所述多个阳极21对应的多个像素定义槽241，每一个像素定义槽241暴露出一个阳极21，所述发光层22设于像素定义槽241内，所述阴极23设于所述发光层22及像素定义层24上，所述阳极21与所述TFT层12电性连接。
具体地，所述应变层3包括形变部31及包围所述形变部31的支撑框4，优选地，所述形变部31的材料为液态胶水。
具体地，如图4所示，所述触控功能层5包括设于应变层3上的触控基材层51、设于所述触控基材层51上的多条平行间隔排列的感应电极链52及设于所述触控基材层51上的多条平行间隔排列的驱动电极链53，所述感应电极链52与所述驱动电极链53绝缘交叉；所述阴极23包括分别与多条驱动电极链53相对设置的多个平行间隔排列的电极条231，通过所述多个平行间隔排列的电极条231形成压力触控图案。
需要说明的是，如图5所示，所述驱动电极链53和感应电极链52集成于所述触控基材层51上，优选地，驱动电极链53和感应电极链52相互垂直交叉，所述驱动电极链53纵向延伸，所述感应电极链52横向延伸，所述阴极23的各个电极条231与驱动电极链53平行间隔，且沿横向间隔排列并沿纵向延伸。
进一步地，如图6所示，每一条感应电极链52均包括多个间隔排列的感应电极521及位于该感应电极链52与驱动电极链53的交叉处的第一连接部522，相邻的两感应电极521通过第一连接部522电性连接；每一条驱动电极链53包括多个间隔排列的驱动电极531及位于该驱动电极链53与感应电极链52的交叉处的第二连接部532，相邻的两驱动电极531通过第二连接部532电性连接，所述第二连接部532与第一连接部522绝缘，其中，在本发明的实施例中第一连接部522位于第二连接部523上方，且第一连接部522和第二连接部523之间形成有绝缘层，所述第一连接部522通过两穿越所述绝缘层的过孔连接两个感应电极521。
值得一提的是，每条驱动电极链53的正下方均对应设有一个电极条231，所述感应电极链52、驱动电极链53及阴极23的材料可以采用金、银、铜、锂、钠、钾、镁、铝、锌等金属材料及其组合，也可采用氧化铟锡、掺铝氧化锌、掺锑氧化锡等导电金属氧化物材料及其组合，优选地，所述感应电极链52、驱动电极链53及阴极23的材料均为导电及透光性能优良的氧化铟锡。
步骤S2、进入第一阶段t1，所述OLED层2发光同时通过所述触控功能层5进行触摸侦测。
步骤S3、进入第二阶段t2，所述OLED层2停止发光同时通过所述阴极23与所述触控功能层5配合进行压力侦测。
具体地，如图4所示，所述感应电极链52和驱动电极链53之间形成第一电容C1，所述驱动电极链53和电极条231之间形成第二电容C2；所述步骤S2中，通过侦测第一电容C1的变化，进行触摸侦测，所述步骤S3中，通过侦测第二电容C2的变化，进行压力侦测。
具体地，如图7所示，所述步骤S2中，向所述驱动电极链53施加第一电压V1，并向所述电极条231施加OLED驱动电压；所述步骤S3中，，向所述驱动电极链53施加第二电压V2，并停止向所述电极条231施加OLED驱动电压。
进一步地，所述步骤S2中，通过侦测感应电极链52达到第一电压V1所用的时间，确定第一电容C1的变化，以完成触摸侦测；所述步骤S3中，通过侦测电极条231达到第二电压V2所用的时间，确定第二电容C2的变化，以完成压力侦测。
需要说明的是，当压力触控显示装置上被施加压力时，形变层31将被挤压，从而导致第二电容C2的两电极板之间的距离减少，进而改变第二电容C2的大小，因此，第二电容C2的大小能够反映出施加到所述压力触控显示装置上的压力的大小。
如图7所示，本发明的压力触控方法的步骤S2及步骤S3的详细过程包括：向驱动电极链53施加脉冲信号VD，所述脉冲信号的在第一阶段t1的脉冲高电压为第一电压V1，在第二阶段的脉冲高电压为第二电压V2，在第一阶段t1通过驱动电极链53为第一电容C1充电，并侦测感应电极链52达到第一电压V1所需要的时间，判断所述第一电容C1的大小是否发生变化，若所述感应电极链52达到第一电压V1所需要的时间不变，则判定第一电容C1的大小不变，无触摸，若所述感应电极链52达到第一电压V1所需要的时间改变，则判定第一电容C1的大小改变，有触摸并识别触摸位置，与此同时在第一阶段t1，所述电极条231上被施加OLED驱动电压以促使OLED的发光层22发光，其电压固定不受驱动电极链53的影响；而在第二阶段t2，所述电极条231上的OLED驱动电压被撤去，此时电极条231上的电压将受到驱动电极链53上的脉冲信号VD的影响，此时脉冲信号VD的脉冲高电压为第二电压V2，通过侦测电极条231达到第二电压V2所需的时间，判断第二电容C2是否发生变化，若所述电极条231达到第二电压V2所需要的时间不变，则判定第二电容C2的大小不变，无压力，若所述电极条231达到第二电压V2所需要的时间改变，则判定第二电容C2的大小改变，有压力并根据第二电容C2的大小改变的多少判断压力的大小，最后，汇总感应电极链52反馈的触摸位置信息及电极条231反馈的压力大小信息，可以得到触摸的位置坐标及压力大小。
值得一提的是，所述第二电压V2远远大于第一电压V1，由于驱动电极链53与电极条231之间的耦合面积大，设置二电压V2远远大于第一电压V1，能够缩短充电时间，且设置第二电压V2较高，还能够排除TFT层2中的导电结构的干扰，提升压力感应灵敏度。
综上所述，本发明提供一种压力触控显示装置，包括基板、设于所述基板上的OLED层、设于所述OLED层上的应变层及设于所述应变层上的触控功能层；所述OLED层包括设于所述基板上的阳极、设于所述阳极上的发光层及设于所述发光层上的具有压力侦测图案的阴极；压力触控时，通过所述触控功能层进行触摸侦测，通过所述阴极与所述触控功能层配合进行压力侦测，通过复用OLED的阴极作为压力感应电极，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。本发明还提供一种压力触控方法，能够在不增加产品厚度的前提下，实现压力触控，提升产品竞争力。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。
Claims (14)
- 一种压力触控显示装置，包括基板、设于所述基板上的OLED层、设于所述OLED层上的应变层及设于所述应变层上的触控功能层；所述OLED层包括设于所述基板上的阳极、设于所述阳极上的发光层及设于所述发光层上的具有压力侦测图案的阴极；压力触控时，通过所述触控功能层进行触摸侦测，通过所述阴极与所述触控功能层配合进行压力侦测。
- 如权利要求1所述的压力触控显示装置，其中，所述触控功能层包括设于应变层上的触控基材层、设于所述触控基材层上的多条平行间隔排列的感应电极链及设于所述触控基材层上的多条平行间隔排列的驱动电极链，所述感应电极链与所述驱动电极链绝缘交叉；所述阴极包括分别与所述多条驱动电极链相对设置的多个平行间隔排列的电极条，通过所述多个平行间隔排列的电极条形成所述压力侦测图案。
- 如权利要求2所述的压力触控显示装置，其中，每一条感应电极链均包括多个间隔排列的感应电极及位于该感应电极链与驱动电极链的交叉处的第一连接部，相邻的两感应电极通过第一连接部电性连接；每一条驱动电极链包括多个间隔排列的驱动电极及位于该驱动电极链与感应电极链的交叉处的第二连接部，相邻的两驱动电极通过第二连接部电性连接，所述第二连接部与第一连接部绝缘。
- 如权利要求1所述的压力触控显示装置，其中，所述应变层包括形变部及包围所述形变部的支撑框。
- 如权利要求4所述的压力触控显示装置，其中，所述形变部的材料为液态胶水。
- 如权利要求1所述的压力触控显示装置，还包括设于触控功能层上的光学透明胶及设于所述光学透明胶上的保护盖板。
- 一种压力触控方法，包括如下步骤：步骤S1、提供一压力触控显示装置，包括基板、设于所述基板上的OLED层、设于所述OLED层上的应变层及设于所述应变层上的触控功能层；所述OLED层包括设于所述基板上的阳极、设于所述阳极上的发光层及设于所述发光层上的具有压力侦测图案的阴极；步骤S2、进入第一阶段，所述OLED层发光同时通过所述触控功能层进行触摸侦测；步骤S3、进入第二阶段，所述OLED层停止发光同时通过所述阴极与所述触控功能层配合进行压力侦测。
- 如权利要求7所述的压力触控方法，其中，所述步骤S1中，所述触控功能层包括设于应变层上的触控基材层、设于所述触控基材层上的多条平行间隔排列的感应电极链及设于所述触控基材层上的多条平行间隔排列的驱动电极链，所述感应电极链与所述驱动电极链绝缘交叉；所述阴极包括分别与所述多条驱动电极链相对设置的多个平行间隔排列的电极条，通过所述多个平行间隔排列的电极条形成所述压力侦测图案。
- 如权利要求8所述的压力触控方法，其中，所述感应电极链和驱动电极链之间形成第一电容，所述驱动电极链和电极条之间形成第二电容；所述步骤S2中通过侦测第一电容的变化，进行触摸侦测，所述步骤S3中通过侦测第二电容的变化，进行压力侦测。
- 如权利要求9所述的压力触控方法，其中，所述步骤S2中，向所述驱动电极链施加第一电压，并向所述电极条施加OLED驱动电压，通过侦测感应电极链达到第一电压所用的时间，确定第一电容的变化，以完成触摸侦测；所述步骤S3中，向所述驱动电极链施加第二电压，并停止向所述电极条施加OLED驱动电压，通过侦测电极条达到第二电压所用的时间，确定第二电容的变化，以完成压力侦测。
- 如权利要求7所述的压力触控方法，其中，所述步骤S1中，所述应变层包括形变部及包围所述形变部的支撑框。
- 如权利要求11所述的压力触控方法，其中，所述形变部的材料为液态胶水。
- 如权利要求7所述的压力触控方法，其中，所述步骤S1中，所述压力触控显示装置还包括设于触控功能层上的光学透明胶及设于所述光学透明胶上的保护盖板。
- 如权利要求8所述的压力触控方法，其中，每一条感应电极链均包括多个间隔排列的感应电极及位于该感应电极链与驱动电极链的交叉处的第一连接部，相邻的两感应电极通过第一连接部电性连接；每一条驱动电极链包括多个间隔排列的驱动电极及位于该驱动电极链与感应电极链的交叉处的第二连接部，相邻的两驱动电极通过第二连接部电性连接，所述第二连接部与第一连接部绝缘。
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| CN112506367A (zh) * | 2020-10-22 | 2021-03-16 | 信利（惠州）智能显示有限公司 | 内嵌式触控显示面板及其制备方法 |
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| CN110347298A (zh) * | 2019-06-21 | 2019-10-18 | 武汉华星光电半导体显示技术有限公司 | 一种触摸屏及其控制方法 |
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| CN109101129A (zh) * | 2018-07-17 | 2018-12-28 | 武汉华星光电半导体显示技术有限公司 | 压感触控显示面板及其驱动方法 |
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| CN112506367B (zh) * | 2020-10-22 | 2024-04-30 | 信利（惠州）智能显示有限公司 | 内嵌式触控显示面板及其制备方法 |
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| CN109753186A (zh) | 2019-05-14 |
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