WO2015096306A1 - 一种触控电路、触控基板及触控显示装置 - Google Patents
一种触控电路、触控基板及触控显示装置 Download PDFInfo
- Publication number
- WO2015096306A1 WO2015096306A1 PCT/CN2014/075500 CN2014075500W WO2015096306A1 WO 2015096306 A1 WO2015096306 A1 WO 2015096306A1 CN 2014075500 W CN2014075500 W CN 2014075500W WO 2015096306 A1 WO2015096306 A1 WO 2015096306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- touch
- sensing signal
- line
- light
- signal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
-
- 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
Definitions
- the present invention relates to the field of display technology
- the touch sensing is designed in the in-cell touch panel, the thickness of the touch panel can be reduced while reducing the touch screen, thereby becoming the development direction of the touch technology.
- the in-cell touch device is a contact-touch design solution, in which the surface of the display panel is touched by a finger or a stylus, causing a change in the induced current (voltage), thereby based on the sensing.
- the change in current identifies the area of the panel that is being touched.
- the contact touch method requires contact with the touch panel to realize touch sensing, and the non-contact touch sensing cannot be realized. Therefore, it is inconvenient for the ffi household to use the touch display device at a long distance.
- the invention provides a touch control circuit, a touch substrate and a touch display device, and can realize a long-distance non-contact touch function.
- the invention provides the following solutions:
- the embodiment of the invention provides a touch circuit, including:
- the light sensing module is configured to correspond to a touch area, and is configured to use the first signal transmitted by the signal input line as the sensing signal when the touch area is illuminated by the light that meets the first preset condition, respectively Transmitting the sensing signal transmission line and the second sensing signal transmission line to a processor, the processor transmitting the first based on the first sensing signal transmission line
- the sensing signal and the second sensing signal transmitted by the second sensing signal transmission line determine location information of the touch area.
- the illumination sensing module includes:
- the light control unit is respectively connected to the signal input line, the first transmission switch, and the first sensing signal transmission line, and is configured to change from an off state to an on state when illuminated by the light, when the light control unit is turned on a state, the first signal transmitted by the signal input line is transmitted to the first transmission switch and the first sensing signal transmission line via the optical control unit;
- the first transmission switch is respectively connected to the signal input line, the light control unit, and the second transmission switch, and is configured to transmit the first signal to the second transmission switch under the control of the first signal;
- a second transfer switch is respectively connected to the first transfer switch, the first gate line, and the second sensing signal transmission line, and ffi is controlled by the second signal transmitted by the first gate line, and the first transmission switch is The transmitted first signal is transmitted to the second inductive signal transmission line.
- the light control unit includes:
- the first transfer switch includes :
- a source of the first thin film transistor is connected to the signal input line, a gate of the first thin film transistor is connected to the node, a drain of the first thin film transistor and the first Two transmission switches are connected.
- the second transmission switch includes:
- a source of the second thin film transistor is connected to the first transfer switch, a gate of the second thin film transistor is connected to the first gate line, and a drain of the second thin film transistor Connected to the second inductive signal transmission line.
- the signal input line and the first sensing signal transmission line are disposed in parallel with the first gate line;
- the second sensing signal transmission line is disposed in parallel with the data line included in the touch area.
- the first sensing signal is used to determine row coordinates of the touch area; and the second sensing signal is used to determine column coordinates of the touch area.
- the first preset condition is determined based on the illumination intensity, wavelength, and type of the light.
- the light is a laser.
- the light is infrared or ultraviolet light.
- the touch circuit further includes a pixel region, a thin film transistor, and a capacitor.
- the embodiment of the present invention further provides a touch control substrate, which may include the touch control circuit provided by the embodiment of the present invention.
- the touch substrate is an array substrate.
- the touch substrate does not have a black matrix disposed above the light control unit.
- the embodiment of the present invention further provides a touch display device, and the touch display device may include the touch substrate provided by the embodiment of the present invention.
- the touch circuit, the touch substrate and the touch display device of the present invention comprise: a touch sensing module corresponding to a touch area, and the touch area
- the first signal transmitted by the signal input line is used as an sensing signal, and is transmitted to a processor through the first sensing signal transmission line and the second sensing signal transmission line, respectively, the processor is based on The first sensing signal transmitted by the first sensing signal transmission line and the second sensing signal transmitted by the second sensing signal transmission line determine location information of the touch area. Therefore, the long-distance non-contact touch function can be realized, which is convenient for the user to use the touch display device.
- FIG. 1 is a schematic structural diagram of a touch circuit according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a touch circuit according to an embodiment of the present invention.
- FIG. 3 is a schematic structural diagram 3 of a touch circuit according to an embodiment of the present invention.
- the embodiment of the invention provides a touch circuit.
- the touch circuit may specifically include:
- the illumination sensing module 1 corresponding to a touch area is configured to: when the touch area is illuminated by the light that meets the first preset condition, the first signal transmitted by the signal input line is used as the sensing signal, respectively
- An inductive signal transmission line IOX and a second inductive signal transmission line IC are transmitted to a processor, and the processor (MCU: Micro Controller Unit) is based on the first sensing signal and the second sensing transmitted by the first sensing signal transmission line
- the second sensing signal transmitted by the signal transmission line determines location information of the touch area.
- the touch control circuit provided by the embodiment of the invention can realize the non-contact touch function, thereby facilitating the remote control of the touch display device by the user.
- the remote non-contact touch function implemented by the embodiment of the present invention can be implemented based on a light that is sent by a handheld or fixed light source and meets a first preset condition, that is, a light is used to replace the user's hand or the stylus. Achieve remote touch operation on the panel.
- the first preset condition involved in the embodiment of the present invention may be determined based on the illumination intensity, wavelength, and type of the light to avoid interference of the ambient light or the like on the non-contact touch operation.
- the light source according to the embodiment of the present invention may be a laser, and the light source may be a device such as a laser pointer.
- the light involved in the embodiment of the present invention may also be infrared rays, ultraviolet rays, or the like.
- the device may further include a pixel region, a thin film transistor T3, a capacitor C1, and other pixel regions.
- the illumination sensing module 1 may specifically include:
- the light control unit 10 is in the on state, the first signal transmitted by the signal input line is transmitted to the first transmission switch 11 via the light control unit 10 and the first Inductive signal transmission line IC-X;
- the first transmission switch 11 is connected to the signal input line, the light control unit 10, and the second transmission switch 12, for transmitting the first signal to the second transmission switch 12 under the control of the first signal;
- the second transfer switch 12 is respectively connected to the first transfer switch 11, the first gate line (gate line ⁇ ), the second sense signal transmission line ,, and the second signal (ie, the gate drive signal) transmitted at the first cabinet line Under control, the first signal transmitted by the first transmission switch 11 is transmitted to the second sensing signal transmission line ⁇ .
- the signal input line and the first sensing signal transmission line ⁇ may be disposed in parallel with the first cabinet line (gate line ,), but the first aspect involved in the embodiment of the present invention
- the gate line may be the » line to which the pixel row of the touch circuit belongs, or the gate line to which the other pixel row belongs.
- the second sensing signal transmission line IC ⁇ may be disposed in parallel with the data lines included in the touch area.
- the signal input line, the first sensing signal transmission line, and the second sensing signal transmission line are not connected to each other, and the setting of the three signal lines cannot affect the illumination of the pixel area in the touch circuit and cannot affect the light to the illumination. Irradiation of the sensing module 1.
- the signal input line and the first sensing signal transmission line according to the embodiment of the present invention may be disposed in the same layer as the first gate line, and the second sensing signal transmission line according to the embodiment of the present invention may be associated with the data.
- the line is set in the same layer.
- the first signal transmitted by the signal input line may be a signal having a fixed voltage (for example, 10 V).
- the first sensing signal is transmitted to the processor at the back end through the first sensing signal transmission line, and the processor determines the row coordinate of the touch area illuminated by the light based on the identifier of the first sensing signal transmission line carried in the first sensing signal; when the first signal When the first transmission switch 11 and the second transmission switch 12 are transmitted to the second sensing signal transmission line 10Y, they are transmitted as a second sensing signal to the processor at the back end through the second sensing signal transmission line, and the processor carries the second sensing signal based on the second sensing signal.
- the identifier of the second sensing signal transmission line determines the column coordinates of the touch area illuminated by the light, and then, based on the determined row coordinates and column coordinates, the position information of the touch area illuminated by the light can be determined, thereby determining that the light is illuminated Position information of the pixel area, which can be subsequently determined based on actual needs Control region, such as the drive control of the light emission region of the pixel.
- the optical control unit 10 may specifically include:
- the photodiode D1 the cathode of the photodiode D1 is connected to the first transfer switch 11, the first sensing signal transmission line IOX to the node A, and the anode of the photodiode D1 is connected to the signal input line.
- the photodiode D1 according to the embodiment of the present invention can be turned from the off state to the on state when illuminated by a strong light such as a laser. Therefore, the function of the light control unit 1 according to the embodiment of the present invention can be realized.
- the first signal transmitted by the signal input line can be transmitted to the first transfer switch 11 and the first sense signal transmission line through the photodiode D1.
- the first transmission switch 11 according to the embodiment of the present invention may include:
- the first thin film transistor T1 the source of the first thin film transistor T1 is connected to the signal input line, the gate of the first thin film transistor T1 is connected to the node A, and the drain and the second of the first thin film transistor The transfer switch T2 is connected.
- the on or off state of the first thin film transistor ⁇ can be determined by the potential of the node A, and then, when the photodiode D1 is illuminated by strong light, it is in an on state.
- the potential of the node A is charged to a high potential by the first signal transmitted by the signal input line, thereby causing the first thin film transistor T1 to be in an on state.
- the first signal transmitted from the signal input line to which the source of the first thin film transistor T1 is connected is transmitted to the second thin film transistor T2 through the first thin film transistor T1.
- the second transmission switch 12 may include:
- the second thin film transistor T2 the source of the second thin film transistor T2 and the first transfer switch
- the T1 (drain) connection, the gate of the second thin film transistor T2 is connected to the first gate line (gate line N), and the drain of the second thin film transistor T2 is connected to the second sensing signal transmission line (IOY).
- the gate driving signal transmitted by the first gate line in the on state is a high level signal
- the second thin film transistor T2 is in an on state.
- the first signal transmitted by the input line is transmitted to the second sensing signal transmission line via the first thin film transistor T1 and the second thin film transistor T2.
- the touch control circuit provided by the embodiment of the present invention can realize the non-contact touch function by using the light emitted by a light source.
- the embodiment of the present invention further provides a touch control substrate, which may include the touch control circuit provided by the embodiment of the present invention.
- the touch substrate provided by the embodiment of the present invention may specifically be an array substrate.
- the touch substrate of the embodiment of the present invention does not have a black matrix or the like on the illumination sensing module 1 .
- the embodiment of the present invention further provides a touch display device, and the touch display device can include the touch substrate provided by the embodiment of the present invention.
- the touch display device may specifically be a liquid crystal panel, a liquid crystal television, a liquid crystal display, an OLED (Organic Light Emitting Diode) panel, an OLED display, a plasma display, or an electronic paper.
- a liquid crystal panel a liquid crystal television
- a liquid crystal display a liquid crystal display
- an OLED (Organic Light Emitting Diode) panel an OLED display
- a plasma display or an electronic paper.
- the touch control circuit, the touch substrate, and the touch display device include a light sensing module corresponding to a touch area, and is used for the touch area.
- the first signal transmitted by the signal input line is used as an sensing signal, and is transmitted to a processor through the first sensing signal transmission line and the second sensing signal transmission line, respectively, the processor is based on The first sensing signal transmitted by the first sensing signal transmission line and the second sensing signal transmitted by the second sensing signal transmission line determine location information of the touch area. Therefore, the long-distance non-contact touch function can be realized, which is convenient for the user to use the touch display device.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/416,253 US9740335B2 (en) | 2013-12-24 | 2014-04-16 | Touch circuit, touch substrate and touch display device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310722426.3 | 2013-12-24 | ||
CN201310722426.3A CN103699264B (zh) | 2013-12-24 | 2013-12-24 | 一种触控电路、触控基板及触控显示装置 |
Publications (1)
Publication Number | Publication Date |
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WO2015096306A1 true WO2015096306A1 (zh) | 2015-07-02 |
Family
ID=50360810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2014/075500 WO2015096306A1 (zh) | 2013-12-24 | 2014-04-16 | 一种触控电路、触控基板及触控显示装置 |
Country Status (3)
Country | Link |
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US (1) | US9740335B2 (zh) |
CN (1) | CN103699264B (zh) |
WO (1) | WO2015096306A1 (zh) |
Families Citing this family (9)
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CN103680385B (zh) * | 2013-11-29 | 2017-01-11 | 合肥京东方光电科技有限公司 | 触控电路及其驱动方法、阵列基板、触控显示装置 |
CN103699264B (zh) * | 2013-12-24 | 2018-01-23 | 京东方科技集团股份有限公司 | 一种触控电路、触控基板及触控显示装置 |
CN103676388A (zh) * | 2013-12-30 | 2014-03-26 | 合肥京东方光电科技有限公司 | 阵列基板、显示面板及其显示方法、显示装置 |
CN104679355B (zh) * | 2015-03-19 | 2017-10-10 | 合肥鑫晟光电科技有限公司 | 一种光学触摸屏及显示装置 |
KR102042079B1 (ko) | 2016-06-17 | 2019-11-07 | 보에 테크놀로지 그룹 컴퍼니 리미티드 | 터치 디스플레이 기판, 상기 터치 디스플레이 기판을 갖는 터치 디스플레이 장치, 픽셀 배열 및 상기 터치 디스플레이 기판의 제조 방법 |
CN106959384B (zh) * | 2017-04-19 | 2019-12-03 | 京东方科技集团股份有限公司 | 一种光电检测电路、显示面板及显示装置 |
CN107274823B (zh) | 2017-08-04 | 2020-05-12 | 京东方科技集团股份有限公司 | 像素电路、手写显示面板及手写显示*** |
US10318084B2 (en) * | 2017-09-18 | 2019-06-11 | Synaptics Incorporated | Methods and systems for matrix electrode arrays |
CN112306304B (zh) * | 2020-10-16 | 2022-04-26 | 深圳市华星光电半导体显示技术有限公司 | 显示面板及显示装置 |
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KR100961072B1 (ko) | 2005-06-09 | 2010-06-01 | 엘지디스플레이 주식회사 | 이미지 센싱 기능을 가지는 액정표시장치 및 그 제조방법과이를 이용한 이미지 센싱 방법 |
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2013
- 2013-12-24 CN CN201310722426.3A patent/CN103699264B/zh not_active Expired - Fee Related
-
2014
- 2014-04-16 WO PCT/CN2014/075500 patent/WO2015096306A1/zh active Application Filing
- 2014-04-16 US US14/416,253 patent/US9740335B2/en active Active
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CN102566836A (zh) * | 2011-10-24 | 2012-07-11 | 友达光电股份有限公司 | 光感式触控电路及其液晶显示器 |
CN103699264A (zh) * | 2013-12-24 | 2014-04-02 | 京东方科技集团股份有限公司 | 一种触控电路、触控基板及触控显示装置 |
Also Published As
Publication number | Publication date |
---|---|
US9740335B2 (en) | 2017-08-22 |
CN103699264A (zh) | 2014-04-02 |
US20160018918A1 (en) | 2016-01-21 |
CN103699264B (zh) | 2018-01-23 |
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