CN112992037B - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN112992037B CN112992037B CN202110220313.8A CN202110220313A CN112992037B CN 112992037 B CN112992037 B CN 112992037B CN 202110220313 A CN202110220313 A CN 202110220313A CN 112992037 B CN112992037 B CN 112992037B
- Authority
- CN
- China
- Prior art keywords
- driving
- signal
- output
- subunit
- output control
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Abstract
The embodiment of the invention discloses a display device, which comprises a flexible display panel and a scroll connected to one end of the flexible display panel; in the grid driving circuit, a signal accessed by one of a first input end and a second input end of an output control subunit is an invalid driving signal, and a signal accessed by the other input end is a driving waveform signal comprising the valid driving signal; the brightness control module of the display device is used for controlling the state of the brightness in the scroll to be opposite to the external brightness; the output control subunit is used for selectively outputting the signal of the first input end or the signal of the second input end according to different brightness states of the environment where the output control subunit is located, so that the output control subunit in the scroll outputs an invalid driving signal; and the output control subunit outside the scroll outputs the driving waveform signal, so that the flexible display panel inside the scroll does not display the picture, and the flexible display panel outside the scroll displays the picture, thereby reducing the power consumption of the display device.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display device.
Background
With the development of display technology, flexible display panels are applied more and more widely.
The flexible display panel can be applied to a rolled display device, and the rolled display device generally includes a reel and a flexible display panel, one end of the flexible display panel is connected to the reel, and the flexible display panel can be received and rolled in the reel.
However, the conventional roll display device has a problem of large power consumption.
Disclosure of Invention
The invention provides a curling display device, which is used for reducing the power consumption of the curling display device.
An embodiment of the present invention provides a display device, including: the display device comprises a flexible display panel and a scroll connected to one end of the flexible display panel, wherein the scroll is used for winding and accommodating the flexible display panel;
the flexible display panel comprises a grid driving circuit, the grid driving circuit comprises a plurality of driving units, each driving unit comprises an output control subunit, each output control subunit comprises a first input end, a second input end and an output end, and the output ends of the output control subunits are used for outputting grid driving signals for driving the pixel circuits; the signal accessed by one of the first input end and the second input end is an invalid driving signal, and the signal accessed by the other input end is a driving waveform signal comprising an valid driving signal;
the display device also comprises a brightness control module, wherein the brightness control module at least comprises a light source in the scroll and is used for controlling the state of the brightness in the scroll to be opposite to the external brightness; the output control subunit is used for selectively outputting the signal of the first input end or the signal of the second input end according to different brightness states of the environment where the output control subunit is located, so that the output control subunit in the scroll outputs an invalid driving signal to control the pixel circuit in the scroll to control the corresponding light-emitting device to be turned off; and enabling the output control subunit outside the reel to output a driving waveform signal so as to control the pixel circuit outside the reel to control the corresponding light-emitting device to light.
Optionally, the brightness control module is configured to turn off the light source in the first operating mode to make the inside of the spool be in a dark state; and the light source is turned on in the second working mode to enable the interior of the scroll to be in a bright state; wherein, the external brightness state is a bright state in the first working mode; the external brightness state in the second working mode is a dark state.
Optionally, the display device further includes a driving chip, the driving unit further includes a first driving subunit and a second driving subunit, a first output end of the first driving subunit is electrically connected to a first input end of the output control subunit, and a second output end of the second driving subunit is electrically connected to a second input end of the output control subunit;
the driving chip is used for driving the signal of the first output end to be a driving waveform signal and driving the signal invalid driving signal of the second output end in a first working mode;
the driving chip is also used for driving the signal of the first output end to be an invalid driving signal and driving the signal of the second output end to be a driving waveform signal in a second working mode;
the output control subunit is used for controlling the communication between the first input end and the output end according to the bright-state environment and controlling the communication between the second input end and the output end according to the dark-state environment.
Optionally, the output control subunit includes a first optical sensor and a second optical sensor, where a first end of the first optical sensor is used as a first input end of the output control subunit, a second end of the first optical sensor is electrically connected to an output end of the output control subunit, and the first optical sensor is used for conducting in a bright environment; the first end of the second optical sensor is used as the second input end of the output control subunit, the second end of the second optical sensor is electrically connected with the output end of the output control subunit, and the second optical sensor is used for conducting in a dark state environment.
Optionally, the flexible display panel further includes a substrate, the first driving subunit and the second driving subunit each include a plurality of thin film transistor arrays located on the substrate, and the first optical sensor and the second optical sensor are located on sides of the thin film transistors far away from the substrate;
preferably, the first optical sensor is positioned at one side of the thin film transistor of the first driving subunit, which is far away from the substrate; the second optical sensor is positioned on one side of the thin film transistor of the second driving subunit, which is far away from the substrate.
Optionally, the brightness control module includes a sensing unit and a light source connected to the sensing unit, the light source is disposed in the scroll, and the sensing unit is configured to sense an external brightness state and control the light source to be turned on or turned off according to the external brightness state.
Optionally, the brightness control module includes a control switch and a light source connected to the control switch, the control switch is electrically connected to the light source, the light source is disposed in the reel, and the light source is turned on or off according to an action of the control switch.
Optionally, the gate driving circuit includes a first driving module, a second driving module and an output control module, where the first driving module includes n cascaded first shift registers, and the first shift registers serve as first driving subunits; the second driving module comprises n cascaded second shift registers, and the second shift registers are used as second driving subunits; the output control module comprises n output control subunits; the output end of the ith stage first shift register is used as an ith first output end, and the output end of the ith stage second shift register is used as an ith second output end;
the first input end of the ith output control subunit is electrically connected with the ith first output end, the second input end of the ith output control subunit is electrically connected with the ith second output end, the output end of the ith output control subunit is used for outputting an ith gate drive signal, i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2; the ith stage first shift register, the ith stage second shift register and the ith output control subunit which are connected with the ith output control subunit are used as an ith driving unit.
Optionally, the first shift register includes a first start signal input end, the second shift register includes a second start signal input end, and the driving chip is configured to provide a driving waveform signal to the first start signal input end of the first stage first shift register in the first operating mode and provide an invalid driving signal to the second start signal input end of the first stage second shift register; and in a second operating mode, providing a driving waveform signal to the second start signal input terminal of the second shift register of the first stage, and providing an invalid driving signal to the first start signal input terminal of the first shift register of the first stage.
Optionally, the arrangement direction of each driving unit intersects with the extension direction of the reel;
the connection line of the driving unit and the light emitting device driven by the pixel circuit connected to the driving unit is parallel to the extending direction of the reel.
The display device provided by the embodiment of the invention comprises a flexible display panel and a scroll connected to one end of the flexible display panel; the flexible display panel comprises a gate driving circuit, the gate driving circuit comprises a plurality of driving units, each driving unit comprises an output control subunit, wherein a signal accessed by one of a first input end and a second input end of the output control subunit is an invalid driving signal, and a signal accessed by the other input end of the output control subunit is a driving waveform signal comprising an valid driving signal; the display device also comprises a brightness control module, wherein the brightness control module is used for controlling the state of the brightness in the scroll to be opposite to the external brightness; the output control subunit is used for selectively outputting the signal of the first input end or the signal of the second input end according to different brightness states of the environment where the output control subunit is located, so that the output control subunit in the scroll outputs an invalid driving signal to control the pixel circuit in the scroll to control the corresponding light-emitting device to be turned off; and enabling the output control subunit outside the scroll to output a driving waveform signal so as to control the pixel circuit outside the scroll to control the corresponding light-emitting device to light up, thereby realizing that the flexible display panel inside the scroll does not display the picture, and the flexible display panel outside the scroll displays the picture, and further reducing the power consumption of the display device.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a gate driving circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a 7T1C pixel circuit commonly used in the prior art;
FIG. 4 is a schematic structural diagram of another display device provided in an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another gate driving circuit according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an output control subunit according to an embodiment of the present invention;
fig. 8 is a sectional view of a display device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another gate driving circuit according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of another display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As described in the background art, the conventional roll display device has a problem of large power consumption. The inventor researches and finds that the above problem occurs because when the flexible display panel portion of the conventional rolled display device is rolled in the reel, the flexible display panel rolled in the reel cannot be seen by human eyes, but the flexible display panel of the rolled portion still performs display, so that useless power consumption is increased in the display panel, and the power consumption of the display device is large.
For the above reasons, an embodiment of the present invention provides a display device, where fig. 1 is a schematic structural diagram of a display device provided by an embodiment of the present invention, fig. 2 is a schematic structural diagram of a gate driving circuit provided by an embodiment of the present invention, and referring to fig. 1 and fig. 2, the display device includes a flexible display panel 100 and a scroll 200 connected to one end of the flexible display panel 100, the scroll 200 is used for winding and receiving the flexible display panel 100;
the flexible display panel 100 includes a gate driving circuit 110, the gate driving circuit 110 includes a plurality of driving units 111, the driving units 111 include an output control subunit 1111, wherein the output control subunit 1111 includes a first input terminal IN1, a second input terminal IN2 and an output terminal OUT, and the output terminal OUT of the output control subunit 1111 is used for outputting a gate driving signal for driving the pixel circuit; one of the first input terminal IN1 and the second input terminal IN2 is connected to a signal which is an inactive drive signal, and the other is connected to a signal which is a drive waveform signal including an active drive signal;
the display device further comprises a brightness control module 210, wherein the brightness control module 210 at least comprises a light source 211 in the scroll 200, and the brightness control module 210 is used for controlling the brightness in the scroll 200 to be opposite to the external brightness state; the output control subunit 1111 is configured to selectively output the signal of the first input terminal IN1 or the signal of the second input terminal IN2 according to the different brightness states of the environment where the output control subunit 1111 is located, so that the output control subunit 1111 IN the reel 200 outputs an invalid driving signal to control the pixel circuit IN the reel 200 to turn off the corresponding light emitting device; and the output control subunit 1111 outside the scroll 200 outputs a driving waveform signal to control the pixel circuit outside the scroll 200 to control the corresponding light emitting device to light up.
Specifically, the display device includes a scroll 200 and a flexible display panel 100, the scroll 200 may include a scroll 200 housing, and an opening disposed in the scroll 200 housing, one end of the flexible display panel 100 is connected in the opening of the scroll 200, the display device may include a plurality of use states, and specifically, the flexible display panel 100 may be completely rolled in the scroll 200 for convenient carrying; and may be partially rolled in the reel 200 or completely flattened, and the embodiment is not particularly limited herein.
The flexible display panel 100 may be a display panel such as an organic light emitting display panel, an electronic paper display panel, a quantum dot display panel, or other types of display panels, and the embodiment is not limited in this embodiment. The substrate of the flexible display panel may be a flexible substrate, and the material of the flexible substrate may be Polyimide (PI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), or the like, or may be a mixture of the foregoing materials.
The gate driving circuit 110 may be a scan driving circuit for supplying a scan signal, or may be a light emission control circuit for supplying a light emission control signal. Fig. 3 is a schematic structural diagram of a 7T1C pixel circuit commonly used in the prior art, wherein the pixel circuit 01 includes a data writing transistor M1, a compensation transistor M2, a first initialization transistor M3, a second initialization transistor M4, a driving transistor DT, a first light emission control transistor M5, and a second light emission control transistor M6. Wherein the first Scan signal Scan1 of the gate of the first initialization transistor M3, the gate of the second initialization transistor M4 being connected, the second Scan signal Scan2 of the gate of the data write transistor M1 and the gate of the compensation transistor M2 being connected are provided by the Scan driving circuit, the emission control signal EM of the gate of the first emission control transistor M5 and the gate of the second emission control transistor M6 being connected is provided by the emission control driving circuit, and the pixel circuit 01 is connected to the light emitting device D1. In this embodiment, the gate driving circuit 110 includes a plurality of driving units 111, the display device may further include a plurality of gate signal lines (when the gate driving circuit 110 is a scanning circuit, the gate signal lines are scanning lines; when the gate driving circuit 110 is a light-emitting control circuit, the gate signal lines are light-emitting control signal lines), each driving unit 111 may be connected to at least one row of pixel circuits through one gate signal line, and when the driving unit 111 outputs a driving waveform signal including an effective driving signal, the pixel circuit connected to the driving unit 111 controls the light-emitting device connected thereto to be turned on under the driving of the driving waveform signal; when the signal output by the driving unit 111 is an invalid driving signal, the pixel circuit connected to the driving unit 111 controls the light emitting device connected to itself to be turned off under the driving of the invalid driving signal.
The effective driving signal and the ineffective driving signal need to be determined according to the type of the transistor controlled by the driving signal, the effective driving signal is a level signal for controlling the transistor connected to the gate driving circuit 110 in the pixel circuit to be turned on, and the ineffective driving signal is a level signal for controlling the transistor connected to the gate driving circuit 110 in the pixel circuit to be turned off. Optionally, the transistor in the pixel circuit connected to the gate driving circuit 110 is a P-type transistor, and the active driving signal is a low level signal and the inactive driving signal is a high level signal. In other alternative embodiments, the transistors in the pixel circuit connected to the gate driving circuit 110 are N-type transistors, so that the active level signal is a high level signal and the inactive driving signal is a low level signal.
In this embodiment, the display device further includes a brightness control module 210 for controlling the brightness inside the scroll 200 to be opposite to the external brightness, and the brightness control module 210 at least includes a light source 211 disposed inside the scroll 200. Specifically, when the external brightness state is a bright state, the brightness control module 210 may control the internal state of the scroll 200 to be a dark state; when the external brightness state is a dark state, the brightness control module 210 can control the internal state of the scroll 200 to be a bright state. The driving unit 111 includes an output control subunit 1111, and a signal accessed by one of the first input terminal IN1 and the second input terminal IN2 of the output control subunit 1111 is an inactive driving signal, and a signal accessed by the other includes a driving waveform signal of the active driving signal. The output control sub-unit 1111 may sense the ambient brightness state (where the ambient brightness state includes a bright state and a dark state) of itself, and control the output of the output terminal OUT of itself according to the ambient brightness state. Taking the brightness state inside the scroll 200 as the first brightness state, the brightness state outside the scroll 200 as the second brightness state (where the first brightness state inside the scroll 200 is the dark state and the second brightness state is the bright state under the control of the brightness control module 210 when the external environment is the bright state, the first brightness state inside the scroll 200 is the bright state and the second brightness state is the dark state under the control of the brightness control module 210 when the external environment is the dark state), the output control subunit 1111 inside the scroll 200 connects the input terminal (the first input terminal IN1 or the second input terminal IN2) connected with the invalid driving signal to the output terminal OUT thereof according to the first brightness state inside the scroll 200, so that the output terminal OUT of the output control subunit 1111 outputs the invalid driving signal, the output terminal OUT of the output control subunit 1111 serves as the output terminal OUT of the driving unit 111, the pixel circuit in the reel 200 connected to the driving unit 111 drives the light emitting device connected to itself to be turned off according to the received ineffective driving signal, wherein the light emitting device connected to the pixel circuit in the reel 200 is also located in the reel 200. The output control subunit 1111 outside the scroll 200 conducts the input terminal (the second input terminal IN2 or the first input terminal IN1) connected to the driving waveform signal with the output terminal OUT thereof according to the second brightness state outside the scroll 200, so that the output terminal OUT of the output control subunit 1111 outputs the driving waveform signal, the output terminal OUT of the output control subunit 1111 serves as the output terminal OUT of the driving unit 111, and then the pixel circuit outside the scroll 200 connected to the driving unit 111 drives the light emitting device connected to itself to light according to the received driving waveform signal, wherein the light emitting device connected to the pixel circuit outside the scroll 200 is also located outside the scroll 200, thereby realizing that the flexible display panel 100 inside the scroll 200 does not display the picture, and the flexible display panel 100 outside the scroll 200 displays the picture, thereby reducing the power consumption of the display device.
The display device provided by the embodiment comprises a flexible display panel and a scroll connected to one end of the flexible display panel; the flexible display panel comprises a grid driving circuit, the grid driving circuit comprises a plurality of driving units, each driving unit comprises an output control subunit, wherein a signal accessed by one of a first input end and a second input end of the output control subunit is an invalid driving signal, and a signal accessed by the other input end of the output control subunit comprises a driving waveform signal of the valid driving signal; the display device also comprises a brightness control module, wherein the brightness control module is used for controlling the state of the brightness in the scroll to be opposite to the external brightness; the output control subunit is used for selectively outputting the signal of the first input end or the signal of the second input end according to different brightness states of the environment where the output control subunit is located, so that the output control subunit in the scroll outputs an invalid driving signal to control the pixel circuit in the scroll to control the corresponding light-emitting device to be turned off; and enabling the output control subunit outside the scroll to output a driving waveform signal so as to control the pixel circuit outside the scroll to control the corresponding light-emitting device to light, thereby realizing that the flexible display panel inside the scroll does not display the picture, and the flexible display panel outside the scroll displays the picture, and further reducing the power consumption of the display device.
On the basis of the above technical solution, optionally, the working modes of the display device may include a first working mode and a second working mode, wherein the external brightness state in the first working mode is a bright state; the external brightness state is a dark state in the second working mode; the brightness control module is used for turning off the light source in a first working mode so as to enable the interior of the scroll to be in a dark state; and the light source is turned on in the second working mode to enable the interior of the scroll to be in a bright state.
Optionally, the brightness control module may have a function of sensing an external brightness state, and control the brightness state in the scroll to be opposite to the external brightness state according to the external brightness state.
Fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention, and referring to fig. 4, optionally, the brightness control module 210 includes a sensing unit 212 and a light source 211 connected to the sensing unit 212, the light source 211 is disposed in the reel 200, and the sensing unit 212 is configured to sense an external brightness state and control the light source 211 to be turned on or off according to the external brightness state. Alternatively, the sensing unit 212 may be an infrared sensor, and the sensing unit 212 may be disposed outside the scroll 200, and may further sense an external brightness state, and then control the light source 211 to be turned on or off according to the sensed external brightness state. Specifically, when the sensing unit 212 senses that the external brightness state is a bright state (corresponding to the first operating mode), it may send a turn-off control signal to the light source 211, so that the light source 211 is turned off, and the brightness state in the spool 200 is a dark state. When the sensing unit 212 senses that the external brightness state is a dark state (corresponding to the second operating mode), it may send an open control signal to the light source 211, so that the light source 211 is opened, and the brightness state in the spool 200 is a bright state.
In other optional embodiments of the present invention, the brightness control module may further turn on or off the light source by receiving an operation instruction. Optionally, the brightness control module includes a control switch and a light source connected to the control switch, the control switch is electrically connected to the light source, the light source is disposed in the reel, and the light source is turned on or off according to an action of the control switch.
Specifically, the control switch can directly receive the action of a user, and the light source is controlled to be turned on or off by receiving the action of the user; the display device can also be connected with a driving chip of the display device, and after the driving chip determines the working mode of the display device, the light source is controlled to be turned on or off under the control of the driving chip. Taking the control switch connected with the driving chip as an example, when the external brightness state is a bright state, the driving chip may determine that the working mode of the display device is the first working mode, and send a turn-off signal to the control switch, so that the control switch controls the light source to be turned off, and the brightness state in the reel is a dark state. When the external brightness state is a dark state, the driving chip can determine that the working mode of the display device is the second working mode, and send an opening signal to the control switch, so that the control switch controls the light source to be opened, and the brightness state in the scroll is a dark state.
The above examples illustrate that the two brightness control modules control the brightness state in the scroll to be opposite to the external brightness state, and the brightness control module may also have other structures as long as the function of controlling the brightness state in the scroll to be opposite to the external brightness state can be implemented, and the embodiment is not limited specifically herein.
Fig. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention, fig. 6 is a schematic structural diagram of another gate driving circuit according to an embodiment of the present invention, referring to fig. 5 and fig. 6, optionally, the display device further includes a driving chip 300, the driving unit 111 further includes a first driving sub-unit 1112 and a second driving sub-unit 1113, a first output terminal of the first driving sub-unit 1112 is electrically connected to a first input terminal IN1 of the output control sub-unit 1111, and a second output terminal of the second driving sub-unit 1113 is electrically connected to a second input terminal IN2 of the output control sub-unit 1111;
the driving chip 300 is configured to, in the first operating mode, drive a signal of the first output end to be a driving waveform signal and drive a signal invalid driving signal of the second output end;
the driving chip 300 is further configured to, in the second operating mode, drive the signal of the first output end to be an invalid driving signal and drive the signal of the second output end to be a driving waveform signal;
the output control subunit 1111 is configured to control the self first input terminal IN1 to communicate with the self output terminal OUT according to the bright environment, and control the self second input terminal IN2 to communicate with the self output terminal OUT according to the dark environment;
wherein, the external environment state is a bright state in the first working mode; the external state is a dark state in the second working mode.
Specifically, driving unit 111 includes a first driving subunit 1112, a second driving subunit 1113, and an output control subunit 1111, where an output terminal OUT of first driving subunit 1112 is a first output terminal, and an output terminal OUT of second driving subunit 1113 is a second output terminal. The signal output by one of the first output end and the second output end is a driving waveform signal, and the signal output by the other one of the first output end and the second output end is an invalid driving signal. The display device may further include a driving chip 300, and optionally, the driving chip 300 may be connected to a sensor (optionally, the sensor may be a sensing unit in the above embodiment) for sensing the external environment state, the sensor may be disposed outside the scroll 200, and the sensor is, for example, an infrared sensor. The sensor transmits the sensed ambient brightness to the driving chip 300, and the driving chip 300 determines the operating mode of the display device according to the ambient brightness sensed by the sensor. Optionally, the driving chip 300 determines that the external environment is a bright state or a dark state according to the ambient brightness sensed by the sensor, and then determines the working mode according to the external brightness state. Specifically, a brightness threshold is set in the driving chip 300, and when the ambient brightness sensed by the sensor is greater than or equal to the brightness threshold, it is determined that the external environment is in a bright state, and the working mode of the display device is determined to be the first working mode; and when the ambient brightness sensed by the sensor is smaller than the brightness threshold, determining that the external environment is in a dark state, and determining that the working mode of the display device is a second working mode.
When the external environment is in a bright state, the driving chip 300 determines that the working mode of the display device is the first working mode, and drives the signal of the first output end to be a driving waveform signal and a signal invalid driving signal for driving the second output end; when the external environment is in a dark state, the driving chip 300 determines that the operating mode of the display device is the second operating mode, and drives the signal of the first output terminal to be an invalid driving signal and drives the signal of the second output terminal to be a driving waveform signal. This may be achieved by providing different control signals to the first drive subunit 1112 and different control signals to the second drive subunit 1113 in different operating modes. The control signal provided to the first driving subunit 1112 may be used to control the output of the first driving subunit 1112, and the control signal provided to the second driving subunit 1113 may be used to control the output of the second driving subunit 1113.
Specifically, in the first operating mode, the external brightness state is a bright state, the brightness control module 210 in the scroll 200 is turned off, and the brightness state in the scroll 200 is a dark state. For the output control subunit 1111 located outside the scroll 200, the output control subunit 1111 controls the first input terminal IN1 thereof to communicate with the output terminal OUT thereof according to the bright environment, the first input terminal IN1 thereof is connected to the first output terminal of the first driving subunit 1112, IN the first operation mode, the output signal of the first output terminal is a driving waveform signal, so the output signal of the output control subunit 1111 at the outside of the scroll 200 is a driving waveform signal, accordingly, the output at the outside of the scroll 200 controls the light emitting device at the outside of the scroll 200 connected to the pixel circuit at the outside of the unit-connected scroll 200 to emit light, and the flexible display panel 100 at the outside of the scroll 200 displays. For the output control subunit 1111 located IN the scroll 200, the output control subunit 1111 controls the own second input terminal IN2 to communicate with the own output terminal OUT according to the dark environment, the second input terminal IN2 is connected to the second output terminal of the second driving subunit 1113, IN the first operation mode, the output signal of the second output terminal is an invalid driving signal, so the output signal of the output terminal OUT of the output control subunit 1111 IN the scroll 200 is an invalid driving signal, accordingly, the light emitting devices IN the scroll 200 connected to the pixel circuits IN the scroll 200 connected to the output control subunit 1111 IN the scroll 200 do not emit light, and the flexible display panel 100 IN the scroll 200 does not display.
In the second operating mode, the external brightness state is a dark state, the brightness control module 210 in the scroll 200 is turned on, and the brightness state in the scroll 200 is a bright state. For the output control subunit 1111 located outside the scroll 200, the output control subunit 1111 controls its own second input terminal IN2 to communicate with its own output terminal OUT according to the dark environment, the second input terminal IN2 is connected to the second output terminal of the second driving subunit 1113, and IN the second operation mode, the output signal of the second output terminal is a driving waveform signal, so the output signal of the output control subunit 1111 output terminal OUT outside the scroll 200 is a driving waveform signal, accordingly, the output outside the scroll 200 controls the light emitting device outside the scroll 200 connected to the pixel circuit outside the unit-connected scroll 200 to emit light, and the flexible display panel 100 outside the scroll 200 performs display. For the output control subunit 1111 located IN the scroll 200, the output control subunit 1111 controls the first input terminal IN1 to communicate with the output terminal OUT according to the bright environment, the first input terminal IN1 is connected to the first output terminal of the first driving subunit 1112, and IN the second operation mode, the output signal of the first output terminal is an invalid driving signal, so the output signal of the output terminal OUT of the output control subunit 1111 located IN the scroll 200 is an invalid driving signal, accordingly, the light emitting devices connected to the pixel circuits IN the scroll 200 connected to the output control subunit 1111 located IN the scroll 200 do not emit light, and the flexible display panel 100 located IN the scroll 200 does not display.
Fig. 7 is a schematic structural diagram of an output control subunit according to an embodiment of the present invention, and referring to fig. 7, optionally, the output control subunit 1111 includes a first optical Sensor1 and a second optical Sensor2, wherein a first end of the first optical Sensor1 serves as a first input end IN1 of the output control subunit 1111, a second end of the first optical Sensor1 is electrically connected to an output end OUT of the output control subunit 1111, and the first optical Sensor1 is configured to be turned on IN a bright state environment; a first terminal of the second optical Sensor2 is used as a second input terminal IN2 of the output control subunit 1111, a second terminal of the second optical Sensor2 is electrically connected to the output terminal OUT of the output control subunit 1111, and the second optical Sensor2 is used for conducting IN a dark state environment.
Alternatively, the first optical Sensor1 and the second optical Sensor2 may be photodiodes or phototransistors. The first optical Sensor1 is turned on IN a bright state environment, so that the output control subunit 1111 controls the communication between the first input end IN1 and the output end OUT according to the bright state environment; the second optical Sensor2 is turned on IN a dark state environment, so that the output control subunit 1111 controls the communication between the second input terminal IN2 and the output terminal OUT according to the dark state environment; and then realize no matter when display device is in bright state environment or dark state environment, can both realize that the flexible display panel in the spool does not show, the outer flexible display panel of spool shows, and then practices thrift display panel's consumption.
Fig. 8 is a cross-sectional view of a display device according to an embodiment of the present invention, and referring to fig. 8, on the basis of the above technical solution, optionally, the flexible display panel further includes a substrate 120, the first driving subunit and the second driving subunit each include a plurality of thin film transistors TFT located on one side of the substrate 120, and the first optical sensor and the second optical sensor are located on one side of the thin film transistors TFT away from the substrate 120.
Optionally, the flexible display panel includes a display region and a non-display region, the gate driving circuit 110 may be located in the non-display region of the flexible display panel, and correspondingly, the first driving subunit, the second driving subunit, and the output control subunit are all located in the non-display region. The first driving subunit and the second driving subunit are both provided with a plurality of Thin Film Transistors (TFT), the light transmittance is poor, the first optical sensor and the second optical sensor are arranged on one side, away from the substrate 120, of the TFT, so that the light-tight structures between the first optical sensor and the light-emitting surface of the second optical sensor and the light-emitting surface of the display device are fewer, the first optical sensor and the second optical sensor can be ensured to more accurately sense the external brightness state, the output of the driving unit is accurately controlled to be a driving waveform signal or an invalid driving signal, the display of the flexible display panel outside the scroll is realized, and the flexible display panel in the scroll does not accurately control the display. The optical Sensor schematically shown in fig. 8 may be the first optical Sensor or the second optical Sensor.
On the basis of the above technical solution, optionally, the first optical sensor is located on a side of the thin film transistor of the first driving subunit away from the substrate; the second optical sensor is positioned on one side of the thin film transistor of the second driving subunit, which is far away from the substrate.
Specifically, the first optical sensor is connected with a first output end of the first driving subunit, and the second optical sensor is connected with a second output end of the second driving subunit, so that the first optical sensor is arranged on one side, away from the substrate, of the thin film transistor of the first driving subunit; the second optical sensor is positioned on one side, far away from the substrate, of the thin film transistor of the second driving subunit, so that the first optical sensor is more conveniently connected with the first driving subunit, and the second optical sensor is more conveniently connected with the second driving subunit.
Fig. 9 is a schematic structural diagram of another gate driving circuit provided in an embodiment of the present invention, fig. 10 is a schematic structural diagram of another display device provided in an embodiment of the present invention, and referring to fig. 9 and fig. 10, optionally, the gate driving circuit 110 includes a first driving module 112, a second driving module 113, and an output control module 114, the first driving module 112 includes n cascaded first shift registers, and the first shift register serves as a first driving subunit 1112; the second driving module 113 includes n cascaded second shift registers as a second driving subunit 1113; the output control module 114 includes n output control subunits 1111; the output end OUT of the ith-stage first shift register is used as an ith first output end, and the output end OUT of the ith-stage second shift register is used as an ith second output end;
a first input end IN1 of the ith output control subunit 1111 is electrically connected with an ith first output end, a second input end IN2 of the ith output control subunit 1111 is electrically connected with an ith second output end, an output end OUT of the ith output control subunit 1111 is used for outputting an ith gate drive signal, i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2; the ith stage first shift register, the ith stage second shift register, and the ith output control subunit 1111, which are connected to the ith output control subunit 1111, function as the ith driving unit 111.
Specifically, the gate driving circuit 110 may include n driving units 111, where the ith driving unit 111 may include an ith stage first shift register, an ith stage second shift register, and an ith output control subunit 1111, the first driving module 112 includes a cascade of first shift registers, the second driving module 113 includes a cascade of second shift registers, and the output control module 114 includes each output control subunit 1111. The first shift register and the second shift register may have the same structure, and correspondingly, the first driving module 112 and the second driving module 113 may have the same structure. The structures of the first shift register and the second shift register may be any shift register structure in the prior art, and this embodiment is not limited in this embodiment.
Based on the above technical solution, optionally, the first shift register includes a first start signal input terminal SIN1, the second shift register includes a second start signal input terminal SIN2, and the driver chip 300 is configured to provide a driving waveform signal to the first start signal input terminal SIN1 of the first stage first shift register and provide an inactive driving signal to the second start signal input terminal SIN2 of the first stage second shift register in the first operating mode; and in the second operation mode, a driving waveform signal is provided to the second start signal input terminal SIN2 of the second shift register of the first stage, and an invalid driving signal is provided to the first start signal input terminal SIN1 of the first shift register of the first stage.
Optionally, the display device may further include a clock signal line (not shown), a first start signal line 410, and a second start signal line 420, where the clock signal lines connected to the first driving module 112 and the second driving module 113 may be the same, so as to reduce the number of signal lines in the non-display area, which is beneficial to implement a narrow bezel. The first driving module 112 is connected to the first start signal line 410 through a first stage first shift register, and the first driving module 112 is configured to shift a signal on the first start signal line 410 step by step through the first shift register; the second driving module 113 is connected to the second start signal line 420 through a first stage second shift register, and the second driving module 113 is configured to shift a signal on the second start signal line 420 step by step through the second shift register. One of the first start signal line 410 and the second start signal line 420 transmits a driving waveform signal, the other transmits an invalid driving signal, and the output control subunit 1111 in the driving unit 111 controls the signal at the output terminal OUT to be the signal output by the first shift register or the signal of the second shift register, so as to realize the selective output of the driving waveform signal and the invalid driving signal.
Specifically, the first start signal input terminal SIN1 of the first stage first shift register of the first driving module 112 is connected to the first start signal line 410, and the first start signal input terminals SIN1 of the first shift registers of the second to nth stages of the first shift registers are respectively connected to the output terminal OUT of the first shift register of the previous stage. The second start signal input terminal SIN2 of the first-stage second shift register of the second driving module 113 is connected to the second start signal line 420, and the second start signal input terminals SIN2 of the second shift registers from the 2 nd-stage second shift register to the nth-stage second shift register are respectively connected to the output terminal OUT of the previous-stage second shift register. The first start signal line 410 and the second start signal line 420 are electrically connected to the driving chip 300, so that the first start signal provided by the driving chip 300 is transmitted to the first driving module 112 through the first start signal line 410, and the second start signal provided by the driving chip is transmitted to the second driving module 113 through the second start signal line 420.
The driving chip 300 uses the first start signal provided to the first start signal input terminal SIN1 as the driving waveform signal in the first operating mode, and uses the second start signal provided to the second start signal terminal SIN2 as the inactive driving signal, so that the output signal of the first output terminal of the first shift register is the driving waveform signal in the first operating mode, the output signal of the second output terminal of the second shift register is the inactive driving signal, the output control subunit 1111 outputs the inactive driving signal according to the ambient brightness state of the output control subunit 1111, and the driving unit 111 outside the spool 200 outputs the driving waveform signal, which is not described herein with reference to the above embodiments.
The driving chip 300 provides the driving waveform signal to the second start signal input terminal SIN2 and provides the inactive driving signal to the first start signal input terminal SIN1 in the second operating mode, so that the output signal of the first output terminal of the first shift register is the inactive driving signal and the output signal of the second output terminal of the second shift register is the driving waveform signal in the second operating mode, the output control subunit 1111 outputs the inactive driving signal to the driving unit 111 inside the reel 200 and outputs the driving waveform signal to the driving unit 111 outside the reel 200 according to the ambient brightness state of the driving chip, and specific processes thereof may be repeated with reference to the above embodiments.
With continued reference to fig. 10, on the basis of the above embodiments, optionally, the arrangement direction x of each driving unit 111 intersects with the extending direction y of the reel 200; the connection line of the driving unit 111 and the light emitting device driven by the pixel circuit connected to the driving unit 111 is parallel to the extending direction y of the reel 200.
Specifically, the arrangement direction of the first driving subunit 1112 intersects with the extension direction of the spool 200, the arrangement direction of the second driving subunit 1113 intersects with the extension direction of the spool 200, and the arrangement direction of the output control subunit 1111 intersects with the extension direction of the spool 200. Optionally, the arrangement direction of the first driving sub-unit 1112 is parallel to the arrangement direction of the second driving sub-unit 1113, and further, the arrangement direction of the first driving sub-unit 1112 is parallel to the arrangement direction of the output control sub-unit 1111.
The arrangement direction of each driving unit 111 is a direction along which adjacent driving units 111 are connected. The arrangement direction of each driving unit 111 intersects with the extending direction of the scroll 200, the connecting line between the driving unit 111 and the pixel circuit connected to the driving unit 111 is parallel to the extending direction of the scroll 200, so that when the flexible display panel 100 is partially or completely stored in the scroll 200, the driving unit 111 is stored in synchronization with the pixel circuit driven by the driving unit 111, and further when the driving unit 111 is located in the scroll 200, the light emitting device driven by the pixel circuit connected to the driving unit 111 is also located in the scroll 200, and when the driving unit 111 is located outside the scroll 200, the light emitting device driven by the pixel circuit connected to the driving unit 111 is also located outside the scroll 200, and when the output control subunit 1111 of the driving unit 111 controls the output according to the ambient brightness state of the driving subunit, the flexible display panel 100 outside the scroll 200 can be ensured to display, and the flexible display panel 100 in the scroll 200 does not display, the power consumption of the display device is saved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A display device, comprising: the display device comprises a flexible display panel and a scroll connected to one end of the flexible display panel, wherein the scroll is used for winding and accommodating the flexible display panel;
the flexible display panel comprises a gate driving circuit, the gate driving circuit comprises a plurality of driving units, and each driving unit comprises an output control subunit, wherein each output control subunit comprises a first input end, a second input end and an output end, and the output end of each output control subunit is used for outputting a gate driving signal for driving a pixel circuit; the signal accessed by one of the first input end and the second input end is an invalid driving signal, and the signal accessed by the other input end comprises a driving waveform signal which is an effective driving signal;
the display device also comprises a brightness control module, wherein the brightness control module at least comprises a light source in the scroll, and is used for controlling the state of the brightness in the scroll to be opposite to the external brightness state; the output control subunit is used for selectively outputting the signal of the first input end or the signal of the second input end according to different brightness states of the environment where the output control subunit is located, so that the output control subunit in the scroll outputs an invalid driving signal to control the pixel circuit in the scroll to control the corresponding light-emitting device to be turned off; and enabling the output control subunit outside the reel to output a driving waveform signal so as to control the pixel circuit outside the reel to control the corresponding light-emitting device to light;
the brightness control module is used for turning off the light source in a first working mode so as to enable the interior of the scroll to be in a dark state; and the light source is turned on in a second working mode to enable the interior of the scroll to be in a bright state; wherein, the external brightness state in the first working mode is a bright state; the external brightness state is a dark state in the second working mode;
the display device further comprises a driving chip, the driving unit further comprises a first driving subunit and a second driving subunit, a first output end of the first driving subunit is electrically connected with a first input end of the output control subunit, and a second output end of the second driving subunit is electrically connected with a second input end of the output control subunit;
the driving chip is used for driving the signal of the first output end to be the driving waveform signal and driving the signal invalid driving signal of the second output end in a first working mode;
the driving chip is further configured to, in a second operating mode, drive the signal of the first output terminal to be the invalid driving signal and drive the signal of the second output terminal to be the driving waveform signal;
the output control subunit is used for controlling the first input end to be communicated with the output end according to the bright-state environment and controlling the second input end to be communicated with the output end according to the dark-state environment.
2. The display device according to claim 1, wherein the output control subunit comprises a first optical sensor and a second optical sensor, wherein a first end of the first optical sensor serves as a first input end of the output control subunit, a second end of the first optical sensor is electrically connected with an output end of the output control subunit, and the first optical sensor is configured to be turned on in a bright state environment; and the first end of the second optical sensor is used as the second input end of the output control subunit, the second end of the second optical sensor is electrically connected with the output end of the output control subunit, and the second optical sensor is used for conducting in a dark state environment.
3. The display device according to claim 2, the flexible display panel further comprising a substrate, the first and second driving subunits each comprising a plurality of thin film transistor arrays on the substrate, the first and second optical sensors being located on a side of the thin film transistors remote from the substrate.
4. The display device according to claim 3, wherein the first optical sensor is located on a side of the thin film transistor of the first driving subunit away from the substrate; the second optical sensor is positioned on one side of the thin film transistor of the second driving subunit, which is far away from the substrate.
5. The display device according to claim 1, wherein the brightness control module comprises a sensing unit and the light source connected to the sensing unit, the light source is disposed in the scroll, and the sensing unit is configured to sense an external brightness state and control the light source to be turned on or off according to the external brightness state.
6. The display device according to claim 1, wherein the brightness control module comprises a control switch and the light source connected to the control switch, the control switch is electrically connected to the light source, the light source is disposed in the reel, and the light source is turned on or off according to an operation of the control switch.
7. The display device according to claim 1, wherein the gate driving circuit comprises a first driving module, a second driving module and an output control module, the first driving module comprises n cascaded first shift registers, and the first shift registers serve as the first driving sub-units; the second driving module comprises n cascaded second shift registers, and the second shift registers are used as the second driving subunit; the output control module comprises n output control subunits; the output end of the ith stage of the first shift register is used as an ith first output end, and the output end of the ith stage of the second shift register is used as an ith second output end;
a first input end of the ith output control subunit is electrically connected with the ith first output end, a second input end of the ith output control subunit is electrically connected with the ith second output end, an output end of the ith output control subunit is used for outputting an ith gate drive signal, i is more than or equal to 1 and less than or equal to n, and n is more than or equal to 2; the ith-stage first shift register, the ith-stage second shift register and the ith output control subunit which are connected with the ith output control subunit are used as the ith driving unit.
8. The display device according to claim 7, wherein the first shift register comprises a first start signal input terminal, the second shift register comprises a second start signal input terminal, and the driving chip is configured to provide a driving waveform signal to the first start signal input terminal of the first shift register of the first stage and provide an inactive driving signal to the second start signal input terminal of the second shift register of the first stage in a first operation mode; and in a second working mode, providing a driving waveform signal to the second initial signal input end of the second shift register of the first stage, and providing an invalid driving signal to the first initial signal input end of the first shift register of the first stage.
9. The display device according to claim 1, wherein the arrangement direction of each of the driving units intersects with the extending direction of the reel;
the connection line of the driving unit and the light emitting device driven by the pixel circuit connected to the driving unit is parallel to the extending direction of the reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110220313.8A CN112992037B (en) | 2021-02-26 | 2021-02-26 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110220313.8A CN112992037B (en) | 2021-02-26 | 2021-02-26 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112992037A CN112992037A (en) | 2021-06-18 |
| CN112992037B true CN112992037B (en) | 2022-04-12 |
Family
ID=76351296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110220313.8A Active CN112992037B (en) | 2021-02-26 | 2021-02-26 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112992037B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539177B (en) * | 2021-07-30 | 2022-12-02 | 京东方科技集团股份有限公司 | Scanning control circuit, driving method thereof, grid driving circuit and display device |
| CN114241917B (en) * | 2021-12-28 | 2024-01-09 | 昆山国显光电有限公司 | Flexible crimp display device and flexible display terminal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103669A (en) * | 2013-04-11 | 2014-10-15 | 乐金显示有限公司 | Flexible display panel |
| CN104851369A (en) * | 2015-06-12 | 2015-08-19 | 京东方科技集团股份有限公司 | Flexible display panel and driving method thereof, and display apparatus |
| CN107248376A (en) * | 2017-06-28 | 2017-10-13 | 武汉天马微电子有限公司 | A kind of flexible display apparatus and its control method |
| CN108335630A (en) * | 2018-01-19 | 2018-07-27 | 昆山国显光电有限公司 | Display device and electronic product |
| CN208806023U (en) * | 2018-09-30 | 2019-04-30 | 深圳市中艺光电科技有限公司 | A kind of energy-saving LED flexible display screen |
| CN109753908A (en) * | 2018-12-27 | 2019-05-14 | 维沃移动通信有限公司 | A kind of control method of terminal device and luminescent device |
| CN111223458A (en) * | 2020-01-06 | 2020-06-02 | 昆山龙腾光电股份有限公司 | Display module and electronic equipment |
| CN111915987A (en) * | 2019-05-07 | 2020-11-10 | 乐金显示有限公司 | Foldable display |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI619103B (en) * | 2016-09-23 | 2018-03-21 | 友達光電股份有限公司 | Flexible Display |
| CN109712551B (en) * | 2019-01-31 | 2020-07-28 | 京东方科技集团股份有限公司 | Gate driving circuit and driving method thereof, display device and control method thereof |
-
2021
- 2021-02-26 CN CN202110220313.8A patent/CN112992037B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103669A (en) * | 2013-04-11 | 2014-10-15 | 乐金显示有限公司 | Flexible display panel |
| CN104851369A (en) * | 2015-06-12 | 2015-08-19 | 京东方科技集团股份有限公司 | Flexible display panel and driving method thereof, and display apparatus |
| CN107248376A (en) * | 2017-06-28 | 2017-10-13 | 武汉天马微电子有限公司 | A kind of flexible display apparatus and its control method |
| CN108335630A (en) * | 2018-01-19 | 2018-07-27 | 昆山国显光电有限公司 | Display device and electronic product |
| CN208806023U (en) * | 2018-09-30 | 2019-04-30 | 深圳市中艺光电科技有限公司 | A kind of energy-saving LED flexible display screen |
| CN109753908A (en) * | 2018-12-27 | 2019-05-14 | 维沃移动通信有限公司 | A kind of control method of terminal device and luminescent device |
| CN111915987A (en) * | 2019-05-07 | 2020-11-10 | 乐金显示有限公司 | Foldable display |
| CN111223458A (en) * | 2020-01-06 | 2020-06-02 | 昆山龙腾光电股份有限公司 | Display module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112992037A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108648691B (en) | Display panel, driving method thereof and display device | |
| US10109240B2 (en) | Displays with multiple scanning modes | |
| CN112992037B (en) | Display device | |
| WO2017067233A1 (en) | Gate line drive circuit, circuit for outputting transmission control signal, and display device | |
| KR102582968B1 (en) | Foldable display | |
| US11574567B2 (en) | Display panel, display apparatus and crack detection method therefor | |
| KR20020032570A (en) | Current sampling circuit for organic electroluminescent display | |
| KR20220156068A (en) | Pixel driving circuits, display panels and electronic devices | |
| CN111883042A (en) | Display panel and display device | |
| US8223104B2 (en) | Display device and electronic device having the same | |
| US11062114B2 (en) | Display device including sensor | |
| CN112783358A (en) | Display device | |
| US7535444B2 (en) | Organic light-emitting display device including pixels commonly having initialization switching element and power supply element | |
| JP5229605B2 (en) | Dual display device | |
| US11073941B1 (en) | Driving device and operation method thereof | |
| JP2009205706A (en) | Shift register circuit, display unit, and electronic device | |
| US7098601B2 (en) | Image display device | |
| CN113241035B (en) | Drive control circuit, drive method, shift register and display device | |
| US20220068213A1 (en) | Scanning drive circuit and display panel | |
| US11164528B2 (en) | Gate driving circuit, TFT array substrate and display device | |
| US9430969B2 (en) | Driving circuit and driving method for AMOLED pixel circuit | |
| US7499013B2 (en) | Display driver, electro-optical device and drive method | |
| US20050073349A1 (en) | Voltage level transferring circuit | |
| JP4254199B2 (en) | Image display device | |
| EP4328666A1 (en) | Display screen and electronic 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 |