Display method, display panel and display device

By detecting the updated display data in real time on the main control terminal and sending an update control signal, the display driving signal is reset, and the problem of increasing the power consumption caused by increasing the response rate in the prior art is solved, and the effects of high response rate and low power consumption are achieved.

CN115731862BActive Publication Date: 2025-03-07BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202211455077.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-21
Publication Date
2025-03-07
Estimated Expiration
2042-11-21

AI Technical Summary

Technical Problem

The prior art increases the response rate by increasing the screen refresh rate, resulting in an increase in power consumption, which cannot meet the requirements of high response rate while reducing power consumption.

Method used

By detecting the updated display data in real time at the main control terminal and sending an update control signal to the display driver circuit, the display driver signal is reset, thereby real-time update of the display data, improving the response rate, and reducing power consumption.

Benefits of technology

Real-time update of display data is realized without waiting for a frame of data to be refreshed, which improves the response rate of the display panel, reduces power consumption and improves user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a display method, which is applied to a display panel, wherein the display panel includes a display driving circuit and a main control end, and the display method includes: the main control end detects in real time whether there is updated display data; if so, the main control end generates an update control signal, and simultaneously sends the updated display data and the update control signal to the display driving circuit; the display driving circuit receives the updated display data and the update control signal, and simultaneously resets the display driving signal to realize the update of the display data. The display method can realize the synchronous update of the display driving signal and the updated display data, thereby realizing the real-time update of the updated display data, without waiting until a frame of data is refreshed, thereby improving the display response rate of the display panel, and at the same time, reducing power consumption.
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Description

Technical Field

[0001] The present invention belongs to the field of display, and in particular relates to a display method, a display panel and a display device. Background Art

[0002] As consumers' demand for mobile phone response speed increases, especially gaming consumers, they pursue the ultimate response speed.

[0003] To increase the screen response rate, the current method is to simply increase the screen refresh rate. For example, some mobile phone manufacturers have increased the refresh rate to 144Hz or even 165Hz. This method can increase the screen refresh rate, but it also brings about an increase in power consumption. Summary of the invention

[0004] In view of the above problems, the present invention provides a display method applied to a display panel, wherein the display panel includes a display driving circuit and a main control terminal, and the display method includes:

[0005] The main control end detects in real time whether there is updated display data;

[0006] If yes, the master control terminal generates an update control signal, and simultaneously sends the updated display data and the update control signal to the display driving circuit;

[0007] The display driving circuit receives the updated display data and the update control signal, and simultaneously resets the display driving signal to implement the update of the display data.

[0008] Optionally, the display panel comprises a pixel array;

[0009] The display driving circuit performs row-by-row scanning driving on the pixel array;

[0010] When the display data of any row of the pixel array is updated, the main control end sends out the updated display data and the update control signal simultaneously.

[0011] Optionally, the pixel comprises a light emitting device and a pixel circuit, and the pixel circuit is connected to the light emitting device;

[0012] The display driving circuit provides an adjustable DC data voltage signal to the pixel circuit, so that the pixel circuit drives the light emitting device to emit light with different brightness.

[0013] Optionally, the display driving signal provided by the display driving circuit to the pixel circuit includes a lighting control trigger signal;

[0014] The duty cycle of the lighting control trigger signal is greater than 98%.

[0015] Optionally, the display driving circuit includes a lighting control driving circuit and a gate driving circuit.

[0016] The lighting control driving circuit provides a lighting control signal to the pixel circuit;

[0017] The gate driving circuit provides a gate driving signal to the pixel circuit;

[0018] The display driving signal includes a lighting control trigger signal and a gate driving trigger signal.

[0019] The lighting control trigger signal controls the driving of the lighting control driving circuit;

[0020] The gate driving trigger signal controls the driving of the gate driving circuit.

[0021] Optionally, the display driving circuit further includes a reset driving circuit,

[0022] The reset driving circuit provides a reset signal to the pixel circuit;

[0023] The display driving signal also includes a reset trigger signal,

[0024] The reset trigger signal controls the driving of the reset driving circuit.

[0025] Optionally, it further comprises: after each frame of picture is displayed, the display driving circuit sends a synchronization control signal to the main control end;

[0026] When the master control end receives the synchronization control signal, it determines whether the next frame of display data is updated. If yes, it sends the next frame of display data to the display driving circuit; if not, it does not send the next frame of display data to the display driving circuit.

[0027] The present invention also provides a display panel, comprising a display driving circuit and a main control terminal, wherein the main control terminal comprises a detection module configured to detect in real time whether there is updated display data;

[0028] The main control end further includes a first module configured to generate an update control signal when there is updated display data;

[0029] The main control end is configured to send the updated display data and the update control signal to the display driving circuit simultaneously;

[0030] The display driving circuit is configured to receive the updated display data and the update control signal and simultaneously reset the display driving signal to implement the update of the display data.

[0031] Optionally, it further comprises a pixel array, wherein the pixels comprise light emitting devices and pixel circuits, and the pixel circuits are connected to the light emitting devices;

[0032] The display driving circuit includes a DC dimming module connected to the pixel circuit and configured to provide an adjustable DC data voltage signal to the pixel circuit.

[0033] Optionally, the display driving circuit further includes a lighting control driving circuit and a gate driving circuit.

[0034] The lighting control driving circuit and the gate driving circuit are connected to the pixel circuits respectively.

[0035] Optionally, the display driving circuit further includes a reset driving circuit, and the reset driving circuit is connected to the pixel circuit.

[0036] Optionally, the display driving circuit further comprises a second module connected to the main control end and configured to send a synchronization control signal to the main control end after each frame of picture is displayed;

[0037] The detection module is further configured to determine whether the next frame of display data is updated when receiving the synchronization control signal, and if so, send the next frame of display data to the display driving circuit; if not, no longer send the next frame of display data to the display driving circuit.

[0038] The present invention also provides a display device, comprising the above display panel.

[0039] Beneficial effects of the present invention: The display method provided by the present invention, when detecting updated display data in real time, the main control end sends an update control signal, and the display driving circuit resets the generated display driving signal after receiving the update control signal, so as to realize the resetting and charging of the display driving circuit, thereby realizing the synchronous update of the display driving signal and the updated display data, and then realizing the real-time update of the updated display data, without waiting until a frame of data is refreshed, thereby improving the response rate of the display panel display, and at the same time, compared with the current solution of increasing the refresh rate to increase the screen response rate, the display method of the present invention also greatly reduces power consumption and improves user experience.

[0040] The display panel provided by the present invention sets a detection module and a first module at the main control end. When updated display data is detected in real time, the main control end sends an update control signal. After receiving the update control signal, the display drive circuit resets the generated display drive signal to achieve the reset and charging of the display drive circuit, thereby achieving synchronous update of the display drive signal and the updated display data, and then achieving real-time update of the updated display data without waiting until a frame of data is refreshed. The response rate of the display panel is improved. At the same time, compared with the current solution of increasing the refresh rate to increase the screen response rate, the display method of the present invention also greatly reduces power consumption and improves user experience.

[0041] The display device provided by the present invention improves the display response rate of the display device by adopting the above-mentioned display panel, and also reduces the power consumption of the display device, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the principle of communication between the main control terminal and the display driving circuit in the disclosed technology;

[0043] Figure 2 A schematic diagram of signal control for communication between a main control terminal and a display driving circuit in the disclosed technology;

[0044] Figure 3 It is a schematic diagram of the principle of communication between the main control terminal and the display driving circuit in an embodiment of the present invention;

[0045] Figure 4 A flow chart of a display method in an embodiment of the present invention;

[0046] Figure 5 A schematic diagram of signal control for communication between a main control terminal and a display driving circuit in an embodiment of the present invention;

[0047] Figure 6 A circuit diagram of a pixel circuit;

[0048] Figure 7 A circuit diagram of a gate drive circuit;

[0049] Figure 8 A circuit diagram of a lighting control driving circuit;

[0050] Fig. 9 It is a principle block diagram of a display panel in an embodiment of the present invention.

[0051] The accompanying drawings are marked as follows:

[0052] 1. Display drive circuit; 11. DC dimming module; 12. Lighting control drive circuit; 13. Gate drive circuit; 14. Reset drive circuit; 15. Data drive circuit; 16. Second module; 2. Main control terminal; 21. Detection module; 22. First module; 3. Pixel; 31. Light-emitting device; 32. Pixel circuit. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the technical solution of the present invention, a display method, a display panel and a display device of the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] As consumers have higher and higher demands for screen response rates, especially game enthusiasts, they need data to respond in a timely manner to get a better experience. Figure 1 As shown, the existing screen refresh logic mainly realizes the communication between the display driver circuit (DIC, i.e., Driver IC) and the main control end (AP end, i.e., main control chip or main control circuit, such as the main control CPU of the display product) through the TE (Tearing effect) signal (i.e., synchronization control signal). The TE signal mainly plays the role of data synchronization. The display converts the collected analog signal into a digital image signal, and the main control end transmits the digital image signal to the display screen. In order to synchronize the data, the TE signal is introduced to prevent the image from being torn.

[0055] like Figure 2 As shown, the existing designs are all synchronized with the main control end through the TE signal to achieve normal screen display, but the design must be updated and refreshed after a frame of data is refreshed; the actual operation is that after a frame of data is refreshed, the TE signal resets the display drive signal to achieve data update and refresh. Among them, the display drive circuit is such as the lighting control drive circuit (EM GOA) and the gate drive circuit (Gate GOA), and the display drive signal is such as the lighting control trigger signal (ESTV) and the gate drive trigger signal (GSTV), etc. The lighting control trigger signal (ESTV) controls the driving of the lighting control drive circuit (EM GOA); the gate drive trigger signal (GSTV) controls the driving of the gate drive circuit (Gate GOA).

[0056] In addition, in order to increase the response rate, screen manufacturers increase the screen refresh rate, such as increasing the screen refresh rate to 144Hz or even higher 165Hz. However, by increasing the refresh rate to increase the screen response rate, the power consumption also increases, resulting in excessive power consumption.

[0057] In order to solve the problem that the current fast response of the screen leads to excessive power consumption and excessive power consumption, an embodiment of the present invention provides a display method applied to a display panel, wherein the display panel includes a display driving circuit and a main control terminal, such as Figure 3-Figure 5 As shown, the display method includes:

[0058] Step S01: the main control end detects in real time whether there is updated display data DATA;

[0059] If yes, execute step S02: the master control terminal generates an update control signal Reset', and simultaneously sends the updated display data DATA and the update control signal Reset' to the display driving circuit;

[0060] Step S03: the display driving circuit receives the updated display data DATA and the update control signal Reset', and simultaneously resets the display driving signal to implement the update of the display data DATA.

[0061] Among them, the display driving circuit includes a data driving chip (i.e., Data IC) and a scanning driving chip (i.e., various GOA circuits) that drive the screen display in the display panel. The scanning driving chips include a lighting control driving circuit (EM GOA), a gate driving circuit (Gate GOA), and a reset driving circuit (Reset GOA). Display driving signals include a lighting control trigger signal (ESTV), a gate driving trigger signal (GSTV), and a reset trigger signal (RSTV). The lighting control trigger signal (ESTV) controls the driving of the lighting control driving circuit (EM GOA); the gate driving trigger signal (including GSTV, controlling the gate driving of the polysilicon transistor; or, also including NSTV, controlling the gate driving of the oxide semiconductor transistor) controls the driving of the gate driving circuit (GateGOA); and the reset trigger signal (RSTV) controls the driving of the reset driving circuit (Reset GOA).

[0062] In this embodiment, the function of the update control signal Reset' is: the display driving circuit communicates with the main control end, and the update control signal Reset' is sent by the main control end. After the display driving circuit receives the update control signal Reset', it will reset the generated display driving signal to achieve the reset and charging of the display driving circuit, thereby achieving the synchronous update of the display driving signal and the updated display data DATA, and then achieving the real-time update of the updated display data DATA, without waiting until a frame of data is refreshed, thereby improving the response rate of the display panel display. At the same time, compared with the current solution of increasing the screen response rate by increasing the refresh rate, the display method of the present invention also greatly reduces power consumption and improves user experience.

[0063] Optionally, the display panel includes a pixel array; the display driving circuit performs row-by-row scanning and driving on the pixel array; when the display data of any row of the pixel array is updated, the main control end simultaneously sends the updated display data and the update control signal. In this way, when the display data of any row of the pixel array is updated, the display data can be updated in real time, thereby improving the display response rate without waiting until a frame of data is refreshed.

[0064] Optionally, the pixel includes a light-emitting device and a pixel circuit, and the pixel circuit is connected to the light-emitting device; the display driving circuit provides an adjustable DC data voltage signal (Vdata) to the pixel circuit, so that the pixel circuit drives the light-emitting device to emit light of different brightness. Such a setting can ensure that the duty cycle of the lighting control trigger signal (ESTV) in the display driving signal is large enough, and the duty cycle of the lighting control trigger signal (ESTV) in the display area reaches more than 98%, so that when the display data is updated, the display of the updated data can be realized by resetting and charging the minimum number of rows of pixels, thereby ensuring that there will be no flickering when the display panel is displayed. The lighting control trigger signal (ESTV) is effective at a low level, and the duty cycle of the lighting control trigger signal (ESTV) refers to the proportion of the low level stage of the signal in a frame display time. When updating the display data, in order to avoid image distortion, the next few rows of pixels from the display data update position will not be displayed, that is, the next few rows of pixels from the update position will be displayed with black insertion, that is, reset and charged in the stage from the rising edge to the falling edge of the lighting control trigger signal (ESTV), so that the least number of rows of pixels are displayed with black insertion, so that the real-time updated display data can be displayed, that is, the real-time updated display data can only be displayed after a delay of several rows of pixels, and the real-time updated display data can only be actually displayed in the low level stage after the falling edge of the lighting control trigger signal (ESTV).

[0065] Optionally, the display driving signal provided by the display driving circuit to the pixel circuit includes a lighting control trigger signal (ESTV); the duty cycle of the lighting control trigger signal (ESTV) is above 98%. This ensures that when the display data is updated, the updated data can be displayed by resetting and charging the minimum number of rows of pixels, thereby ensuring that the display panel does not flicker when displaying.

[0066] Optionally, the display driving circuit includes a lighting control driving circuit (EM GOA) and a gate driving circuit (GateGOA), the lighting control driving circuit (EM GOA) provides a lighting control signal EM to the pixel circuit; the gate driving circuit (GateGOA) provides a gate driving signal Gate to the pixel circuit; the display driving signal includes a lighting control trigger signal (ESTV) and a gate driving trigger signal (GSTV), the lighting control trigger signal (ESTV) controls the driving of the lighting control driving circuit (EM GOA); the gate driving trigger signal (GSTV) controls the driving of the gate driving circuit (Gate GOA).

[0067] Optionally, the pixel circuit adopts Figure 6 In the 7T1C circuit shown in the figure, the transistors in the pixel circuit use conventional low temperature polysilicon transistors, that is, the pixel circuit is an LTPS circuit. The gate drive circuit (Gate GOA) uses Figure 7 The circuit shown in FIG. 1 is used for the lighting control drive circuit (EM GOA). Figure 8 The circuit shown in FIG. 1 is a circuit in which the gate driving signal Gate output by the gate driving circuit (Gate GOA) and the lighting control signal EM output by the lighting control driving circuit (EM GOA) are used as control signals of the pixel circuit. The lighting control trigger signal (ESTV) is used as the input signal of the lighting control driving circuit (EM GOA) to control the output of the lighting control driving circuit (EM GOA); the gate driving trigger signal (GSTV) is used as the input signal of the gate driving circuit (Gate GOA) to control the output of the gate driving circuit (Gate GOA). The lighting control trigger signal (ESTV) and the gate driving trigger signal (GSTV) are generated by the display driving circuit. When the lighting control trigger signal (ESTV) and the gate driving trigger signal (GSTV) are updated or reset, the lighting control driving circuit (EM GOA) and the gate driving circuit (Gate GOA) will be refreshed. Therefore, when the display data of the main control end is updated, the update control signal Reset' is transmitted to the display driving circuit to reset the lighting control trigger signal (ESTV) and the gate driving trigger signal (GSTV) to achieve instantaneous update of the display data.

[0068] Optionally, the display driving circuit also includes a reset driving circuit (Reset GOA), and the reset driving circuit (ResetGOA) provides a reset signal to the pixel circuit; the display driving signal also includes a reset trigger signal (RSTV), and the reset trigger signal (RSTV) controls the driving of the reset driving circuit (Reset GOA). Among them, the transistor part of the pixel circuit adopts a conventional low-temperature polysilicon transistor, and part adopts an oxide semiconductor transistor, that is, the pixel circuit is an LTPO circuit. The LTPO pixel circuit requires a lighting control trigger signal (ESTV), a gate drive trigger signal (including GSTV, which controls the gate drive of the low-temperature polysilicon transistor; and NSTV, which controls the gate drive of the oxide semiconductor transistor) and a reset trigger signal (RSTV) to jointly control the drive.

[0069] In this embodiment, when the display data is updated at any time, the updated display data (MIPI protocol signal) is synchronously transmitted from the main control end to the display driving circuit with the update control signal Reset', and the display driving circuit receives the update control signal Reset' and synchronously resets the display driving signal, thereby realizing real-time display of the updated display data.

[0070] Alternatively, if Figure 5 As shown, the display method in this embodiment also includes: after each frame of picture is displayed, the display driving circuit sends a synchronization control signal TE to the main control end; when the main control end receives the synchronization control signal TE, it determines whether the next frame of display data is updated, if yes, the next frame of display data is sent to the display driving circuit; if not, the next frame of display data is no longer sent to the display driving circuit. When the next frame of display data is not updated, the main control end no longer repeatedly sends the next frame of display data to the display driving circuit, which can further reduce the display power consumption of the display panel.

[0071] The display method provided by the present invention, when detecting updated display data in real time, the main control end sends out an update control signal Reset', and the display driving circuit resets the generated display driving signal after receiving the update control signal Reset', so as to realize the resetting and charging of the display driving circuit, thereby realizing the synchronous update of the display driving signal and the updated display data DATA, and then realizing the real-time update of the updated display data DATA, without waiting until a frame of data is refreshed, thereby improving the response rate of the display panel display. At the same time, compared with the current solution of increasing the screen response rate by increasing the refresh rate, the display method of the present invention also greatly reduces power consumption and improves user experience.

[0072] Based on the above display method, an embodiment of the present invention further provides a display panel, such as Fig. 9As shown, it includes a display driving circuit 1 and a main control terminal 2, the main control terminal 2 includes a detection module 21, which is configured to detect in real time whether there is updated display data DATA; the main control terminal 2 also includes a first module 22, which is configured to generate an update control signal Reset' when there is updated display data DATA; the main control terminal 2 is configured to send the updated display data DATA and the update control signal Reset' to the display driving circuit at the same time; the display driving circuit 1 is configured to receive the updated display data DATA and the update control signal Reset', and at the same time reset the display driving signal to realize the update of the display data.

[0073] Optionally, the display panel also includes a pixel 3 array, the pixel 3 includes a light-emitting device 31 and a pixel circuit 32, and the pixel circuit 32 is connected to the light-emitting device 31; the display driving circuit 1 includes a DC dimming module 11, which is connected to the pixel circuit 32 and is configured to provide an adjustable DC data voltage signal to the pixel circuit 32.

[0074] Optionally, the display driving circuit 1 further includes a lighting control driving circuit 12 and a gate driving circuit 13, and the lighting control driving circuit 12 and the gate driving circuit 13 are respectively connected to the pixel circuit 32. The lighting control driving circuit 12 provides a lighting control signal to the pixel circuit 32; the gate driving circuit 13 provides a gate driving signal to the pixel circuit 32.

[0075] Optionally, the display driving circuit 1 further includes a reset driving circuit 14, and the reset driving circuit 14 is connected to the pixel circuit 32. The reset driving circuit 14 provides a reset signal to the pixel circuit 32.

[0076] Optionally, the display driving circuit 1 further comprises a data driving circuit 15, and the data driving circuit 15 is used to receive updated display data sent by the main control terminal 2, and provide the updated display data to the pixel 3 array for display.

[0077] Optionally, the display driving circuit 1 further includes a second module 16, connected to the main control terminal 2, and configured to send a synchronization control signal TE to the main control terminal 2 after each frame of the picture is displayed; the detection module 21 is further configured to determine whether the next frame of display data is updated when receiving the synchronization control signal TE, and if so, send the next frame of display data to the display driving circuit 1; if not, no longer send the next frame of display data to the display driving circuit 1. In this way, the display power consumption of the display panel can be reduced.

[0078] The display panel provided by the embodiment of the present invention sets a detection module and a first module at the main control end. When updated display data is detected in real time, the main control end sends an update control signal Reset'. After receiving the update control signal Reset', the display driving circuit resets the generated display driving signal to achieve the reset and charging of the display driving circuit, thereby achieving the synchronous update of the display driving signal and the updated display data DATA, and then achieving the real-time update of the updated display data DATA without waiting until a frame of data is refreshed. The response rate of the display panel is improved. At the same time, compared with the current solution of increasing the screen response rate by increasing the refresh rate, the display method of the present invention also greatly reduces power consumption and improves user experience.

[0079] An embodiment of the present invention further provides a display device, comprising the display panel in the above embodiment.

[0080] By adopting the display panel in the above embodiment, the display response rate of the display device is improved, while the power consumption of the display device is reduced, thereby improving the user experience.

[0081] The display device can be: an OLED panel, an OLED TV, a mobile phone, a tablet computer, a laptop computer, a display, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function.

[0082] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A display method, applied to a display panel, wherein the display panel comprises a display driving circuit and a main control terminal, characterized in that: The display method comprises: The main control end detects in real time whether there is updated display data; If yes, the master control terminal generates an update control signal, and simultaneously sends the updated display data and the update control signal to the display driving circuit; The display driving circuit receives the updated display data and the update control signal, and simultaneously resets the display driving signal to implement the update of the display data; The display panel includes a pixel array; The display driving circuit performs row-by-row scanning driving on the pixel array; When the display data of any row of the pixel array is updated, the main control end sends out the updated display data and the update control signal simultaneously.

2. The display method according to claim 1, characterized in that: The pixel comprises a light emitting device and a pixel circuit, wherein the pixel circuit is connected to the light emitting device; The display driving circuit provides an adjustable DC data voltage signal to the pixel circuit, so that the pixel circuit drives the light emitting device to emit light with different brightness.

3. The display method according to claim 2, characterized in that: The display driving signal provided by the display driving circuit to the pixel circuit includes a lighting control trigger signal; The duty cycle of the lighting control trigger signal is greater than 98%.

4. The display method according to claim 2, characterized in that: The display driving circuit includes a lighting control driving circuit and a gate driving circuit. The lighting control driving circuit provides a lighting control signal to the pixel circuit; The gate driving circuit provides a gate driving signal to the pixel circuit; The display driving signal includes a lighting control trigger signal and a gate driving trigger signal. The lighting control trigger signal controls the driving of the lighting control driving circuit; The gate driving trigger signal controls the driving of the gate driving circuit.

5. The display method according to claim 4, characterized in that: The display driving circuit also includes a reset driving circuit, The reset driving circuit provides a reset signal to the pixel circuit; The display driving signal also includes a reset trigger signal, The reset trigger signal controls the driving of the reset driving circuit.

6. The display method according to any one of claims 1 to 5, characterized in that: Also includes: After each frame of picture is displayed, the display driving circuit sends a synchronous control signal to the main control end; When the master control end receives the synchronization control signal, it determines whether the next frame of display data is updated. If yes, it sends the next frame of display data to the display driving circuit; if not, it does not send the next frame of display data to the display driving circuit.

7. A display panel, comprising a display driving circuit and a main control terminal, wherein the main control terminal comprises a detection module configured to detect in real time whether there is updated display data; It is characterized in that The main control end further includes a first module configured to generate an update control signal when there is updated display data; The main control end is configured to send the updated display data and the update control signal to the display driving circuit simultaneously; The display driving circuit is configured to receive the updated display data and the update control signal, and simultaneously reset the display driving signal to implement the update of the display data; The display panel also includes a pixel array; The display driving circuit is further configured to perform row-by-row scanning driving on the pixel array; The main control end is also configured to send out the updated display data and the update control signal simultaneously when the display data of any row of the pixel array is updated.

8. The display panel according to claim 7, characterized in that: The pixel comprises a light emitting device and a pixel circuit, wherein the pixel circuit is connected to the light emitting device; The display driving circuit includes a DC dimming module connected to the pixel circuit and configured to provide an adjustable DC data voltage signal to the pixel circuit.

9. The display panel according to claim 8, characterized in that: The display driving circuit also includes a lighting control driving circuit and a gate driving circuit. The lighting control driving circuit and the gate driving circuit are connected to the pixel circuits respectively.

10. The display panel according to claim 9, characterized in that: The display driving circuit further includes a reset driving circuit, and the reset driving circuit is connected to the pixel circuit.

11. The display panel according to any one of claims 7 to 10, characterized in that: The display driving circuit further comprises a second module connected to the main control end and configured to send a synchronization control signal to the main control end after each frame of picture is displayed; The detection module is further configured to determine whether the next frame of display data is updated when receiving the synchronization control signal, and if so, send the next frame of display data to the display driving circuit; if not, no longer send the next frame of display data to the display driving circuit.

12. A display device, characterized in that: A display panel comprising any one of claims 7 to 11.

Citation Information

Patent Citations

  • Display apparatus, and display controller and operating method thereof

    CN102467866A

  • Concurrently refreshing multiple areas of a display device using multiple different refresh rates

    CN106663402A