CN112905051A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN112905051A CN112905051A CN202110230592.6A CN202110230592A CN112905051A CN 112905051 A CN112905051 A CN 112905051A CN 202110230592 A CN202110230592 A CN 202110230592A CN 112905051 A CN112905051 A CN 112905051A
- Authority
- CN
- China
- Prior art keywords
- touch
- light
- light control
- control device
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
-
- 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
Landscapes
- 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
The embodiment of the application discloses a display panel and a display device, wherein the display panel comprises a display screen body and a driving module, and the display screen body comprises a touch device and a light control device; the driving module is used for providing a first driving voltage and a second driving voltage for the light control device and the touch control device, wherein the first driving voltage is a positive voltage, and the second driving voltage is a negative voltage; the light control device is used for outputting a light control induction signal to the driving module when the first driving voltage is switched on; the touch device is used for outputting a touch sensing signal to the driving module when the first driving voltage is switched on; the driving module is further used for controlling the display screen body to respond correspondingly according to the light-operated sensing signal and the touch sensing signal. The display panel has a touch function and a light control function, can meet the touch and light control functions required by a client at the same time, and the driving module can support the output of positive voltage and negative voltage, so that the driving of the touch function of the light control function can be realized by using a common driving module, and a driving system is simplified.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of display technology, in order to reduce cost, it is a mainstream trend in the industry to integrate various sensors into a display panel, such as a touch sensor and a light sensor into the display panel.
However, in the conventional display panel, only a touch sensor or only a light sensor is generally integrated, and the touch and light control functions required by a customer cannot be satisfied at the same time.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can solve the technical problem that generally only a touch sensor or only an optical sensor is integrated in the existing display panel, and the touch and optical control functions required by a customer cannot be met simultaneously.
The embodiment of the application provides a display panel, which comprises a display screen body and a driving module, wherein the display screen body comprises a touch device and a light control device;
the driving module is used for providing a first driving voltage for the light control device and the touch control device at a first time and providing a second driving voltage for the light control device and the touch control device at a second time; the first driving voltage is a positive voltage, and the second driving voltage is a negative voltage;
the light control device is used for outputting a light control induction signal to the driving module when the first driving voltage is connected;
the touch device is used for outputting a touch sensing signal to the driving module when the first driving voltage is accessed;
the driving module is further configured to control the display screen body to perform a corresponding response according to the light-controlled sensing signal and the touch sensing signal.
Optionally, in some embodiments of the present application, the driving module includes a control unit, a driving unit, and a reading unit;
the control unit is used for controlling the driving unit to provide a first driving voltage for the light control device and the touch control device at a first time and provide a second driving voltage for the light control device and the touch control device at a second time;
the reading unit is used for accessing the light-operated sensing signal and the touch sensing signal and controlling the display screen body to respond correspondingly according to the light-operated sensing signal and the touch sensing signal.
Optionally, in some embodiments of the present application, the light control device is provided in a plurality, and the plurality of light control devices are distributed in an array; the display screen body further comprises:
the scanning lines are arranged along the row direction of the light control devices, one scanning line is correspondingly connected with one row of the light control devices, and the scanning lines are connected with the driving unit and used for being connected with the first driving voltage and the second driving voltage;
the light-operated sensing device comprises a plurality of signal reading lines arranged along the row direction of the light-operated devices, one signal reading line is correspondingly connected with one row of the light-operated devices, and the signal reading line is connected with a reading unit and used for transmitting the light-operated sensing signal to the reading unit.
Optionally, in some embodiments of the application, the touch electrode includes a plurality of receiving electrodes disposed along a column direction of the light control device, the plurality of receiving electrodes are arranged along a row direction of the light control device, and the receiving electrodes are connected to the reading unit and configured to transmit the touch sensing signal to the reading unit.
Optionally, in some embodiments of the present application, the receiving electrode and the scan line are located at different layers and are arranged to intersect with each other, and the receiving electrode and the scan line form a touch capacitance at the intersection.
Optionally, in some embodiments of the present application, the touch device further includes a plurality of emitting electrodes, and the emitting electrodes are connected to the driving unit and used for accessing the first driving voltage and the second driving voltage; the emitting electrodes are arranged along the row direction of the light control device and are spaced from the scanning lines, and the plurality of emitting electrodes are arranged along the column direction of the light control device;
the transmitting electrode and the receiving electrode are located on different layers and are arranged in a crossed mode with the receiving electrode, and a touch control capacitor is formed at the crossed position of the transmitting electrode and the receiving electrode.
Optionally, in some embodiments of the present application, the reading unit includes a light-controlled reading unit and a touch-controlled reading unit that are independent of each other;
the light control reading unit is connected with the light control device and is used for accessing a light control induction signal output by the light control device;
the touch reading unit is connected with the touch device and used for accessing a touch sensing signal output by the touch device.
Optionally, in some embodiments of the present application, the driving module further includes a driving chip, and the driving unit, the reading unit, and the control unit are all integrated on the driving chip.
Optionally, in some embodiments of the application, the driving module further includes a communication unit integrated on the driving chip, and the reading module is in communication connection with the display screen body through the communication unit, so as to control the display screen body to perform a corresponding response according to the light-controlled sensing signal and the touch sensing signal.
In a second aspect, the present application also provides a display apparatus comprising a light beam emitter for emitting a projected light beam and a display panel as described in any of the above embodiments, the light control device on the display panel being adapted to sense the projected light beam projected on the display panel.
The beneficial effect of this application does: the display panel has a touch function and a light control function simultaneously, can meet the touch and light control functions required by a client simultaneously, can realize short-range touch and long-range light control functions, is favorable for improving the composite function of the display panel, can support the output of positive voltage and negative voltage simultaneously, can realize the driving of the touch function of the light control function by using a common driving module so as to simplify a driving system and improve the driving stability, and can simultaneously provide the same driving voltage for the light control device and the touch device and lead the touch device and the light control device to be simultaneously connected with a first driving voltage and a second driving voltage by multiplexing scanning lines as the transmitting electrodes of the touch device, thereby realizing the on-off driving of the light control device, realizing the charging and discharging of the touch voltage and simultaneously scanning the light control device and the touch device, the refresh rate of the light-operated device and the touch device is greatly improved, the phenomenon that the emitting electrode and the signal reading line form parasitic capacitance to influence the normal work of the touch device can be avoided, the wiring quantity can be reduced, and the transmittance of the panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a driving timing sequence of a scan line according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
Reference numerals:
10. a drive module; 11. a drive unit; 12. a reading unit; 121. an integrated reading unit; 122. a light-operated reading unit; 123. a touch reading unit; 13. a control unit; 14. a communication unit; 20. a display screen body; 21. a light control device.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a display panel and a display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
The present application provides a display panel, as shown in fig. 1 to 4, the display panel includes a display screen body 20 and a driving module 10; the display screen body 20 can be used for displaying, and the display screen body 20 can be a liquid crystal display screen body, an OLED display screen body, a mini LED display screen body, a thin film transistor display screen body, a metal oxide display screen body, or the like, and the type of the display screen body 20 is not limited in the present application; the driving module 10 is connected to the display screen body 20 for driving the display screen body 20.
The display panel body 20 includes a light control device 21 and a touch device, and the light control device 21 is used for sensing a light control operation, so that the display panel has a light control function; the touch device is used for sensing touch operation so that the display panel has a touch function.
It can be understood that, the driving module 10 is connected to the light control device 21 and the touch device to control the light control device 21 and the touch device to work, the light control device 21 and the touch device are integrated in the display panel at the same time, when the display panel needs to be touched at a close distance, the display panel is touched by a finger or a touch pen, the touch device at a corresponding position on the display panel senses the touch operation and transmits a touch sensing signal to the driving module 10, and the driving module 10 controls the display panel body 20 to perform a corresponding response according to the touch sensing signal, so as to implement a touch function.
When need carry out remote operation to display panel, for example when showing through display panel in the meeting room, the device of projection beam is launched through handheld light beam transmitter etc. to the show personnel, light-operated device 21 senses and transmits light-operated sensing signal for drive module 10 when throwing the projection beam on the display screen body 20, drive module 10 carries out corresponding response according to light-operated sensing signal control display screen body 20, in order to realize light-operated function, display panel possesses touch-control function and light-operated function simultaneously, can satisfy required touch-control of customer and light-operated function simultaneously, and display panel can realize short distance touch-control and long-range light-operated function, be favorable to promoting display panel's complex function.
Specifically, the driving module 10 is configured to provide a first driving voltage to the photo control device 21 and the touch control device at a first time t1, and to provide a second driving voltage to the photo control device 21 and the touch control device at a second time t 2; the first driving voltage is a positive voltage, and the second driving voltage is a negative voltage.
The light control device 21 is configured to output a light control sensing signal to the driving module 10 when the first driving voltage is applied.
The touch device is configured to output a touch sensing signal to the driving module 10 when the first driving voltage is applied.
The driving module 10 is further configured to control the display screen body 20 to perform a corresponding response according to the light-controlled sensing signal and the touch sensing signal.
It can be understood that the light control device 21 may be a light sensing transistor, the light control device 21 needs a positive voltage for driving, and needs a negative voltage for turning off, while the driving module 10 in the present application may support the output of the positive voltage and the negative voltage, and the driving module 10 simultaneously provides the same driving voltage to the light control device 21 and the touch device, so that the scanning of the light control device 21 and the touch device may be performed simultaneously, the driving of the touch function of the light control function may be implemented by using a common driving module 10, and the simultaneous operation of the light control function and the touch function also greatly improves the refresh rate of the light control function and the touch function.
Specifically, the driving module 10 includes a control unit 13, a driving unit 11, and a reading unit 12.
The driving unit 11 is connected to the light control device 21 and the touch control device, and is configured to provide a first driving voltage to the light control device 21 and the touch control device at a first time t1, and provide a second driving voltage to the light control device 21 and the touch control device at a second time t 2.
The control unit 13 is configured to control the driving unit 11 to provide a first driving voltage to the light control device 21 and the touch device at a first time t1, and to provide a second driving voltage to the light control device 21 and the touch device at a second time t 2.
The reading unit 12 is configured to access the light-controlled sensing signal and the touch sensing signal, and control the display screen body 20 to perform a corresponding response according to the light-controlled sensing signal and the touch sensing signal.
In an embodiment, the driving module 10 further includes a driving chip, and the driving unit 11, the reading unit 12, and the control unit 13 are all integrated on the driving chip, so as to drive the light control device 21 and the touch device through one driving system, thereby simplifying the driving system, improving stability, and reducing cost.
Specifically, the driving module 10 further includes a communication unit 14 integrated on the driving chip, and the reading module is in communication connection with the display screen body 20 through the communication unit 14, so as to control the display screen body 20 to perform corresponding response according to the light-controlled sensing signal and the touch sensing signal.
It should be noted that the communication unit 14 supports communication protocols of various formats, such as TCP/IP and IPX/SPX.
Specifically, the light control device 21 is provided in a plurality, and the plurality of light control devices 21 are distributed in an array, so that each region of the display panel can have a light control function.
Specifically, the display screen body 20 further includes a plurality of scan lines (Gate1.... quadrature. Gate (n)) and a plurality of data read lines (S1.. quadrature. S (n)).
The scan lines Gate are arranged along the row direction of the light control device 21, one scan line Gate is correspondingly connected to one row of the light control device 21, and the scan line Gate is connected to the driving unit 11 and used for accessing the first driving voltage and the second driving voltage.
The signal reading lines S are arranged along the row direction of the light control devices 21, one signal reading line S is correspondingly connected with one row of the light control devices 21, and the signal reading line S is connected with the reading unit 12 and used for transmitting the light control sensing signal to the reading unit 12.
It should be noted that the light control device 21 performs scanning in a line scanning manner, when the mth scanning line Gate is connected to the first driving voltage, a line of light control devices 21 connected to the mth scanning line Gate is turned on, the line of light control devices 21 transmits a light control sensing signal to the reading unit 12 through the signal reading line S, the reading unit 12 determines whether a projection beam is projected onto the display screen body 20 according to the received light control sensing signal, and when the light control device 21 senses the projection beam projected onto the display screen body 20, the reading unit 12 determines a beam projection position according to the light control sensing signal and controls a corresponding position on the display screen body 20 to perform a corresponding response; after the scanning is finished, the mth scanning line Gate is connected to the second driving voltage, the row of light control devices 21 connected to the mth scanning line Gate is turned off, and then the (m + 1) th scanning line Gate is connected to the first driving voltage, and so on until all the light control devices 21 finish the scanning.
Specifically, the Gate of the light sensing transistor of the light control device 21 is connected to the scan line Gate, the source of the light sensing transistor is connected to a power voltage, the drain of the light sensing transistor is connected to the signal reading line S, and when the Gate of the light sensing transistor is connected to the first driving voltage, the light sensing transistor is turned on, and the reading unit 12 reads the light control sensing signal through the signal reading line S and controls the display panel to generate a corresponding response.
Specifically, the touch electrode includes a plurality of receiving electrodes (rx1.... RX (n)), the receiving electrodes RX are arranged along a column direction of the light control device 21, the plurality of receiving electrodes RX are arranged along a row direction of the light control device 21, the receiving electrodes RX are connected to the reading unit 12, and are configured to transmit the touch sensing signal to the reading unit 12, and the reading unit 12 may be a detection IC.
In one embodiment, as shown in fig. 1 and 2, the receiving electrode RX and the scan line Gate are located at different layers and are arranged to intersect with each other, and a touch capacitance is formed at the intersection of the receiving electrode RX and the scan line Gate.
It can be understood that the touch device is a mutual capacitance type touch device, a scanning line Gate is multiplexed as an emitting electrode, a touch capacitor is formed at an intersection of the scanning line Gate and the receiving electrode RX, the scanning line Gate is used for accessing a first driving voltage and a second driving voltage, when the scanning line Gate is accessed to the first driving voltage, the touch capacitor is charged, and the receiving electrode RX outputs a corresponding touch sensing signal according to a capacitance of the touch capacitor. When a display panel is touched by a finger, a touch pen or other equipment, the capacitance of a touch capacitor formed by a scanning line Gate at a touch position and a receiving electrode RX changes, the receiving electrode RX sends a corresponding touch sensing signal to the reading unit 12, and the reading unit 12 determines a touch point according to the touch sensing signal and controls the display panel to perform corresponding response; when the scanning line Gate is connected to the second driving voltage, the touch capacitor discharges to reset the touch capacitor.
It should be noted that, by multiplexing the scan lines Gate as the emitting electrodes of the touch device, the touch device and the light control device 21 can be simultaneously connected to the first driving voltage and the second driving voltage, so that the touch device and the light control device 21 can simultaneously operate, and the charging and discharging of the touch voltage are realized while the on-off of the light control device 21 is driven, and the emitting electrodes and the signal reading lines S can be prevented from forming parasitic capacitance to affect the normal operation of the touch device, and the number of wiring lines can be reduced, thereby improving the transmittance of the panel.
In an embodiment, as shown in fig. 3, the touch device further includes a plurality of transmitting electrodes (tx1.... TX (n)), and the transmitting electrodes TX are connected to the driving unit 11 for receiving the first driving voltage and the second driving voltage.
The transmitting electrodes TX are arranged along the row direction of the light control device 21 and spaced from the scanning lines Gate, the transmitting electrodes TX are arranged along the column direction of the light control device 21, the transmitting electrodes TX and the receiving electrodes RX are located at different layers and are arranged to intersect with the receiving electrodes RX, and the transmitting electrodes TX and the receiving electrodes RX form a touch capacitor at the intersection.
It can be understood that the touch device and the light control device 21 are simultaneously connected to the first driving voltage and the second driving voltage, but the touch device and the light control device 21 respectively scan through the independent emitting electrode TX and the independent scanning line Gate, so that the touch device and the light control device 21 can simultaneously operate, the on-off of the light control device 21 is driven, the charging and discharging of the touch voltage are also realized, and the light control device 21 and the touch device are mutually independent, thereby reducing the influence on one of the light control device 21 and the touch device when the other one fails, and facilitating the detection and repair when the failure occurs.
In an embodiment, the reading unit 12 includes an integrated reading unit 121, the light control device 21 and the touch device are both connected to the integrated reading unit 121, and the integrated reading unit 121 is configured to access a light control sensing signal output by the light control device 21 and a touch sensing signal output by the touch device.
It can be understood that, by using one reading unit 12 to read and process the touch sensing signal and the touch sensing signal, the driving module 10 can be simplified, the driving stability can be improved, and the production cost can be reduced.
In another embodiment, as shown in fig. 4, the reading unit 12 includes a light-controlled reading unit 122 and a touch-controlled reading unit 123 that are independent of each other.
The light control reading unit 122 is connected to the light control device 21, and the light control reading unit 122 is configured to access a light control sensing signal output by the light control device 21; the touch reading unit 123 is connected to the touch device, and the touch reading unit 123 is configured to access a touch sensing signal output by the touch device.
It should be noted that the reading unit 12 may include an independent optically controlled reading unit 122 and an independent touch reading unit 123, where the optically controlled reading unit 122 and the touch reading unit 123 respectively sample and process signals of the optically controlled device 21 and the touch device, and mutual interference of signals output by the optically controlled device 21 and the touch device in the reading unit 12 may be reduced on the premise of maintaining a high refresh rate.
Based on the above display panel, the present application also provides a display device, which includes a light beam emitter for emitting a projection light beam, and a display panel as described in any of the above embodiments, wherein the light control device 21 on the display panel is used for sensing the projection light beam projected on the display panel.
The projection light beam can be visible light, and the visible light can be one of red light, orange light, yellow light, green light, blue light, cyan light, purple light or other color light; the projection light beam can also be invisible light, and the invisible light can be one of infrared light and ultraviolet light; taking the invisible light as the infrared light, the wavelength of the invisible light may be 980 nm, 808 nm, or 850 nm, and the type and wavelength of the visible light and the type and wavelength of the invisible light may be designed according to the sensitive region of the light control device 21 on the display panel in practical situations.
It should be noted that, when the display panel needs to be operated remotely, for example, when the display panel is displayed in a meeting room, a display person projects the projection light beam onto the display panel by using the light beam emitter through holding the light beam emitter by hand, the light control device 21 on the display panel sends a light control sensing signal to the reading module after sensing the projection light beam, and the reading module determines the projection position of the projection light beam on the display panel according to the light control sensing signal and controls the display panel to make a corresponding response, for example, determine an operation, perform a handwriting operation, drag a light spot, and the like, so that the remote operation of the display panel can be realized, and the operation is convenient and fast.
The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The display panel is characterized by comprising a display screen body and a driving module, wherein the display screen body comprises a touch device and a light control device;
the driving module is used for providing a first driving voltage for the light control device and the touch control device at a first time and providing a second driving voltage for the light control device and the touch control device at a second time; the first driving voltage is a positive voltage, and the second driving voltage is a negative voltage;
the light control device is used for outputting a light control induction signal to the driving module when the first driving voltage is connected;
the touch device is used for outputting a touch sensing signal to the driving module when the first driving voltage is accessed;
the driving module is further configured to control the display screen body to perform a corresponding response according to the light-controlled sensing signal and the touch sensing signal.
2. The display panel according to claim 1, wherein the driving module includes a control unit, a driving unit, and a reading unit;
the control unit is used for controlling the driving unit to provide a first driving voltage for the light control device and the touch control device at a first time and provide a second driving voltage for the light control device and the touch control device at a second time;
the reading unit is used for accessing the light-operated sensing signal and the touch sensing signal and controlling the display screen body to respond correspondingly according to the light-operated sensing signal and the touch sensing signal.
3. The display panel according to claim 2, wherein the light control device is provided in a plurality, and a plurality of the light control devices are distributed in an array; the display screen body further comprises:
the scanning lines are arranged along the row direction of the light control devices, one scanning line is correspondingly connected with one row of the light control devices, and the scanning lines are connected with the driving unit and used for being connected with the first driving voltage and the second driving voltage;
the light-operated sensing device comprises a plurality of signal reading lines arranged along the row direction of the light-operated devices, one signal reading line is correspondingly connected with one row of the light-operated devices, and the signal reading line is connected with a reading unit and used for transmitting the light-operated sensing signal to the reading unit.
4. The display panel according to claim 3, wherein the touch electrode comprises a plurality of receiving electrodes arranged along a column direction of the light control device, the plurality of receiving electrodes are arranged along a row direction of the light control device, and the receiving electrodes are connected to the reading unit and configured to transmit the touch sensing signal to the reading unit.
5. The display panel of claim 4, wherein the receiving electrodes are located at different layers from the scan lines and are arranged to intersect with the scan lines, and the receiving electrodes and the scan lines form touch control capacitors at the intersections.
6. The display panel according to claim 4, wherein the touch device further comprises a plurality of emitting electrodes connected to the driving unit for receiving the first driving voltage and the second driving voltage; the emitting electrodes are arranged along the row direction of the light control device and are spaced from the scanning lines, and the plurality of emitting electrodes are arranged along the column direction of the light control device;
the transmitting electrode and the receiving electrode are located on different layers and are arranged in a crossed mode with the receiving electrode, and a touch control capacitor is formed at the crossed position of the transmitting electrode and the receiving electrode.
7. The display panel according to claim 2, wherein the reading unit comprises a light-operated reading unit and a touch-controlled reading unit which are independent of each other;
the light control reading unit is connected with the light control device and is used for accessing a light control induction signal output by the light control device;
the touch reading unit is connected with the touch device and used for accessing a touch sensing signal output by the touch device.
8. The display panel according to claim 2, wherein the driving module further comprises a driving chip, and the driving unit, the reading unit and the control unit are integrated on the driving chip.
9. The display panel of claim 8, wherein the driving module further comprises a communication unit integrated on the driving chip, and the reading module is communicatively connected to the display screen body through the communication unit, so as to control the display screen body to respond correspondingly according to the light-controlled sensing signal and the touch-controlled sensing signal.
10. A display device comprising a light beam emitter for emitting a projected light beam and a display panel as claimed in any one of claims 1 to 9, a light control device on the display panel for sensing the projected light beam projected on the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110230592.6A CN112905051B (en) | 2021-03-02 | 2021-03-02 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110230592.6A CN112905051B (en) | 2021-03-02 | 2021-03-02 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112905051A true CN112905051A (en) | 2021-06-04 |
| CN112905051B CN112905051B (en) | 2023-09-26 |
Family
ID=76107467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110230592.6A Active CN112905051B (en) | 2021-03-02 | 2021-03-02 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112905051B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050200291A1 (en) * | 2004-02-24 | 2005-09-15 | Naugler W. E.Jr. | Method and device for reading display pixel emission and ambient luminance levels |
| US20150029157A1 (en) * | 2013-05-17 | 2015-01-29 | Beijing Boe Display Technology Co., Ltd. | Optical sensing type built in touch control screen panel and a display device |
| US20150205440A1 (en) * | 2013-03-29 | 2015-07-23 | Boe Technology Group Co., Ltd. | In-cell touch screen panel and display device |
| CN111427201A (en) * | 2020-04-30 | 2020-07-17 | 京东方科技集团股份有限公司 | Array substrate and display panel |
| CN112214128A (en) * | 2020-10-09 | 2021-01-12 | 深圳市华星光电半导体显示技术有限公司 | Touch panel |
| CN112230797A (en) * | 2020-10-13 | 2021-01-15 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112259581A (en) * | 2020-10-15 | 2021-01-22 | 深圳市华星光电半导体显示技术有限公司 | Control assembly, display screen and control device |
| CN112306304A (en) * | 2020-10-16 | 2021-02-02 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
-
2021
- 2021-03-02 CN CN202110230592.6A patent/CN112905051B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050200291A1 (en) * | 2004-02-24 | 2005-09-15 | Naugler W. E.Jr. | Method and device for reading display pixel emission and ambient luminance levels |
| US20150205440A1 (en) * | 2013-03-29 | 2015-07-23 | Boe Technology Group Co., Ltd. | In-cell touch screen panel and display device |
| US20150029157A1 (en) * | 2013-05-17 | 2015-01-29 | Beijing Boe Display Technology Co., Ltd. | Optical sensing type built in touch control screen panel and a display device |
| CN111427201A (en) * | 2020-04-30 | 2020-07-17 | 京东方科技集团股份有限公司 | Array substrate and display panel |
| CN112214128A (en) * | 2020-10-09 | 2021-01-12 | 深圳市华星光电半导体显示技术有限公司 | Touch panel |
| CN112230797A (en) * | 2020-10-13 | 2021-01-15 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112259581A (en) * | 2020-10-15 | 2021-01-22 | 深圳市华星光电半导体显示技术有限公司 | Control assembly, display screen and control device |
| CN112306304A (en) * | 2020-10-16 | 2021-02-02 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112905051B (en) | 2023-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10955964B2 (en) | Active pen and touchscreen display device | |
| CN108153376B (en) | Display apparatus | |
| KR102460552B1 (en) | Touch display device, display controller, driving circuit, and driving method | |
| EP2990915B1 (en) | Timing controller for display device with touch sensing function | |
| JP4567028B2 (en) | Liquid crystal display device having multi-touch sensing function and driving method thereof | |
| US11257452B2 (en) | Touch display device, touch sensing circuit, and driving method | |
| KR101555967B1 (en) | Display device integrated with touch screen and method of driving the same | |
| CN108121477A (en) | Touch-sensing circuit, touch display unit and touch-sensing method | |
| KR102336709B1 (en) | Tiled display device and syncronizing method thereof | |
| US20130257782A1 (en) | Input system | |
| KR102350727B1 (en) | Touch screen display device including fingerprint sensor | |
| CN104571748A (en) | Touch controller, electronic device and display device, and touch sensing method | |
| US20150185935A1 (en) | Touch system, touch panel, and display device | |
| US8411059B2 (en) | Integrated electromagnetic type input flat panel display apparatus | |
| WO2022077717A1 (en) | Display panel and display apparatus | |
| KR102259239B1 (en) | Display device with touch panel | |
| CN102419674A (en) | Plane display device and substrate for integrating electromagnetic type induction input | |
| KR102149841B1 (en) | Display device and method of driving the same | |
| CN104508535B (en) | Optical thin film and the electronic stylus system using optical thin film | |
| CN102455828B (en) | Method for auto angle setting of infrared sensor module and display device having the same applied thereto | |
| CN112905051A (en) | Display panel and display device | |
| CN105900043A (en) | Recognition method and recognition device | |
| KR101929729B1 (en) | Display device with touch screen | |
| CN112799548A (en) | Display panel and display device | |
| CN102511024A (en) | Location identification sensor, electronic device, and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |