Display driving chip, method and display device

Abstract

The application discloses a display driving chip, a method and a display device, and belongs to the technical field of display. The display driving chip comprises a compensation memory, the compensation memory is connected with a processor, and the compensation memory is connected with a display chip through a first data channel. The display driving chip is used for executing a data receiving instruction sent by the processor to acquire image data sent by the display chip through the first data channel and store the image data into the compensation memory when a start refreshing instruction sent by the processor is received. When the compensation memory stores the image data, a data refreshing instruction is executed to refresh and display the image data to a display screen.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a display driver chip, method, and display device. Background Technology

[0002] With the development of multimedia technology, increasingly rich video data has emerged, and users have higher and higher requirements for the driving display technology of terminal displays. However, since multi-frame video data includes both dynamic and static images, there are global refresh and partial refresh processes when the display driver displays the image.

[0003] In related technologies, the display driver chip that drives the display screen can include Ram DDIC (Ram Display Driver Integrated Circuit, a display driver chip with image buffer) and Ram-less DDIC (Ram-less Display Driver Integrated Circuit, a display driver chip without image buffer). Since Ram-less DDIC can directly receive data from the host for real-time display, it can more flexibly adapt to different resolution and frame rate requirements. However, while Ram-less DDIC can flexibly adapt to different resolution and frame rate requirements, it cannot achieve partial refresh, which means that the entire interface needs to be loaded every time it refreshes, resulting in long user waiting time and a poor user experience. Summary of the Invention

[0004] The purpose of this application is to provide a display driver chip that can solve the problem that partial refresh technology cannot be implemented when using Ram-less DDIC to drive the display screen in the prior art.

[0005] In a first aspect, embodiments of this application provide a display driver chip, the display driver chip including a compensation memory, the compensation memory being connected to a processor, and the compensation memory being connected to the display chip via a first data path;

[0006] The display driver chip is configured to execute a data receiving instruction sent by the processor upon receiving a start refresh instruction sent by the processor, so as to obtain image data sent by the display chip through the first data path and store it in the compensation memory;

[0007] When the image data is stored in the compensation memory, a data refresh instruction is executed to refresh and display the image data on the display screen.

[0008] Secondly, embodiments of this application provide a display driving method, the method being applied to a display driving chip, the display driving chip including a compensation memory connected to a processor, the compensation memory being connected to the display chip via a first data path; the method includes:

[0009] Acquire image data sent by the display chip;

[0010] The image data is stored in the compensation memory through the first data path;

[0011] If the image data is stored in the compensation memory, the image data is refreshed and displayed on the screen.

[0012] Thirdly, embodiments of this application provide a display device, including a display driver chip, a display screen, a display chip, and a processor;

[0013] The processor is used to send start refresh instructions and data receive instructions;

[0014] The display chip is used to send image data;

[0015] The display driver chip is used to drive the display screen to display;

[0016] The display driver chip is the same as any one of the display driver chips described in the first aspect of this disclosure.

[0017] Fourthly, embodiments of this application provide an electronic device, including a display device; the display device is the display device described in the third aspect of this disclosure.

[0018] Fifthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the second aspect.

[0019] Sixthly, this application provides a chip that includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the second aspect.

[0020] In a seventh aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the method described in the second aspect.

[0021] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0022] The display driver chip described in this disclosure includes a compensation memory connected to a processor and connected to the display chip via a first data path. Upon receiving a refresh start command from the processor, the display driver chip executes a data receiving command sent by the processor to acquire image data sent by the display chip via the first data path and store it in the compensation memory. When the compensation memory contains the image data, the display driver chip executes a data refresh command to refresh and display the image data on the display screen. This allows the display driver chip to receive image data via the first data path and store it in the compensation memory while performing a refresh start operation, so that the image data can be refreshed and displayed on the screen during a refresh operation. This enables partial refresh technology through the chip's built-in compensation memory, avoiding the need to load the entire interface with each refresh, reducing user waiting time, and improving user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a display driver chip provided in the background technology of this application;

[0024] Figure 2 This is a schematic diagram of another display driver chip provided in the background technology of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a display driver chip provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of another display driver chip provided in an embodiment of this application;

[0027] Figure 5 This is a timing diagram illustrating the entry into a partial refresh display mode provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of another display driver chip provided in an embodiment of this application;

[0029] Figure 7 This is a timing diagram illustrating the process of exiting and entering a partial refresh display mode, as provided in an embodiment of this application.

[0030] Figure 8 This is a timing diagram illustrating another method for entering a partial refresh display mode, as provided in an embodiment of this application.

[0031] Figure 9 This is a flowchart of a display driving method provided in an embodiment of this application;

[0032] Figure 10This is a flowchart of another display driving method provided in an embodiment of this application;

[0033] Figure 11 This is a block diagram of a display driving device provided in an embodiment of this application;

[0034] Figure 12 A schematic block diagram illustrating the structure of a display device according to an embodiment of this application;

[0035] Figure 13 A schematic block diagram illustrating the structure of an electronic device according to an embodiment of this application;

[0036] Figure 14 This is a block diagram of another electronic device provided in an embodiment of this application;

[0037] Figure 15 This is a schematic diagram of the hardware structure of another electronic device provided in an embodiment of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] Before introducing the display driver chip, method, and display device provided in this disclosure, the application scenarios involved in the various embodiments of this disclosure are first described. This disclosure can be applied to display driving scenarios of display screens, and the display driver chip provided in the embodiments of this disclosure can be applied to display devices having display driver chips. The display screen may be an AMOLED display (Active-Matrix Organic Light-Emitting Diode).

[0041] Currently, with the development of multimedia technology, increasingly rich video data has emerged, and users have higher and higher requirements for the driving display technology of terminal displays. However, since multi-frame video data includes both dynamic and static images, there are global refresh and partial refresh processes when the display driver displays the image.

[0042] In related technologies, a display driver integrated circuit (DDIC) can be used to receive image data sent by a display chip and refresh the image data to the display screen. DDICs can be divided into Ram DDICs (Ram Display Driver Integrated Circuits, display driver chips with image buffers) and Ram-less DDICs (Ram-less Display Driver Integrated Circuits, display driver chips without image buffers) based on whether they have an image buffer. Both types have internal memory for processing image algorithms. The difference between the two is that Ram DDICs have an image buffer, while Ram-less DDICs do not.

[0043] Therefore, it can be concluded that Ram DDIC can perform MFD (Manufactured Multi-Sector Partial Refresh) functionality, such as... Figure 1 As shown, the image data for the "update area" can be written to the image cache first, and then the screen can refresh it. However, as... Figure 2 As shown, for Ram-less DDIC, the AP (Application Processor) needs to continuously send images. The image data of the "non-updating area" also needs to be continuously sent from the AP to the screen. After the screen receives the image, it will refresh it. Therefore, Ram-less DDIC cannot currently perform MFD function.

[0044] To address the aforementioned issues, this disclosure provides a display driver chip, method, and display device. When the display driver chip performs a refresh operation, it can receive image data through the first data path and store the image data in a compensation memory. During the refresh operation, the image data is refreshed and displayed on the display screen. This enables partial refresh technology through the compensation memory inherent in the chip, avoiding the need to load the entire interface with each refresh, reducing user waiting time, and improving user experience.

[0045] The display driver chip provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0046] Figure 3This is a schematic diagram of the structure of a display driver chip provided in an embodiment of this application, as shown below. Figure 3 As shown, the display driver chip 100 includes a compensation memory 101, which is connected to the processor 102 and is connected to the display chip 103 through a first data path.

[0047] Optionally, the display driver chip 100 is configured to, upon receiving a start refresh instruction sent by the processor 102, execute a data receiving instruction sent by the processor 102 to obtain image data sent by the display chip 103 through the first data path and store it in the compensation memory 101; and, if the compensation memory 101 stores the image data, execute a data refresh instruction to refresh and display the image data on the display screen.

[0048] The display driver chip 100 may include a Ram-less DDI, and the processor 102 may include an AP.

[0049] In one possible implementation, such as Figure 4 As shown, the display driver chip 100 may include the compensation memory 101. One end of the compensation memory 101 may be connected to the data receiving end (RX) of the display driver chip 100, and the other end of the compensation memory 101 may be connected to the image compensation algorithm module.

[0050] In a specific implementation, when the display driver chip 100 receives a start refresh command sent by the processor 102, it can receive image data sent by the AP through the display chip 103 via the RX terminal of the display driver chip 100. Then, it controls the compensation memory 101 to execute the data receiving command sent by the AP. The data receiving command instructs the compensation memory 101 to receive and store the image data sent by the AP through the display chip 103 via the first data path. Then, when the image data is stored in the compensation memory 101, if the display driver chip 100 receives a data refresh command sent by the AP, it can control the compensation memory 101 to send the stored image data to the image compensation algorithm module for data processing, so as to refresh and display the image data on the display screen.

[0051] In another possible implementation, the display driver chip 100 can execute the data receiving instruction upon receiving a refresh start instruction from the processor 102. This data receiving instruction controls the compensation memory 101 to receive the position information of the first area to be refreshed on the display screen sent by the AP. The first area can be an area on the display screen that does not update image data during the current frame display. Then, the image data of the first area sent by the AP through the display chip 103 can be received via the first data path and stored. If the display driver chip 100 receives a data refresh instruction from the AP while the image data of the first area is stored in the compensation memory 101, it can control the compensation memory 101 to send the stored image data of the first area to the image compensation algorithm module for data processing, thereby refreshing and displaying the image data of the first area on the first area of ​​the display screen.

[0052] The display driver chip 100 disclosed above includes a compensation memory 101 connected to a processor 102 and connected to a display chip 103 via a first data path. Upon receiving a refresh start command from the processor 102, the display driver chip 100 executes a data receiving command sent by the processor 102 to acquire image data sent by the display chip 103 via the first data path and store it in the compensation memory 101. When the compensation memory 101 contains the image data, the display driver chip 100 executes a data refresh command to refresh and display the image data on the display screen. This allows the display driver chip 100 to receive image data via the first data path and store it in the compensation memory 101 while performing a refresh operation, enabling partial refresh technology through the chip's built-in compensation memory 101. This avoids loading the entire interface with each refresh, reducing user waiting time and improving user experience.

[0053] In some embodiments, the display driver chip 100 can also be used to execute the data receiving instruction to determine the second area to be refreshed on the display screen according to the data receiving instruction.

[0054] Optionally, when the compensation memory 101 receives the position information of the first area to be refreshed on the display screen sent by the AP, it can also calculate the position coordinates of the second area based on the position coordinates of the first area.

[0055] The first region can represent an area on the display screen where image data is not updated when the current frame is displayed, and the second region can represent an area on the display screen where image data needs to be updated when the current frame is displayed.

[0056] Optionally, the display driver chip 100 further includes a second data path, through which the display chip 103 is connected to the display screen.

[0057] The display driver chip 100 is used to execute the data receiving instruction to refresh and display the image data of the second area sent by the display chip 103 to the second area of ​​the display screen through the second data path.

[0058] In one possible implementation, the display driver chip 100, upon receiving a refresh start instruction sent by the processor 102, can execute the data receiving instruction. This data receiving instruction instructs the compensation memory 101 to receive the first area to be refreshed on the display screen sent by the AP. Furthermore, based on the position coordinates of the first area, the chip 100 can calculate the position coordinates of the second area, and then receive and store the image data of the first area through the display chip 103 via the first data path. Then, if the display driver chip 100 receives a data refresh instruction sent by the AP while the image data of the first area is stored in the compensation memory 101, it can control the compensation memory 101 to send the stored image data of the first area to the image compensation algorithm module for data processing, thereby refreshing and displaying the image data of the first area on the first area of ​​the display screen. The data refresh instruction instructs the image data of the first area to be refreshed and displayed on the first area of ​​the display screen.

[0059] Furthermore, the compensation memory 101 can also receive image data of the second region through the display chip 103 via the second data path when it receives a start refresh command sent by the processor 102, and directly send the image data of the second region to the image compensation algorithm module for data processing, so as to refresh and display the image data of the second region on the second region of the display screen; the data refresh command is used to instruct the image data of the second region to be refreshed and displayed on the second region of the display screen.

[0060] Considering that the function of the compensation memory 101 is to store data related to brightness compensation, the data inside the compensation memory 101 needs to be cleared before performing a partial refresh operation.

[0061] In some embodiments, the display driver chip 100 may also be used to execute a data clearing instruction sent by the processor 102 before executing the data receiving instruction, so as to clear the data stored in the compensation memory 101.

[0062] By adopting the above technical solution, the image data corresponding to the area that does not update the image data when the current frame is displayed can be temporarily stored in the compensation memory 101. Then, the image data of the area can be newly displayed according to the refresh instruction of the processor 102. At the same time, the image data corresponding to the area that needs to update the image data when the current frame is displayed can also be directly sent to the display. In this way, the partial refresh display function of the display screen can be realized when using Ram-less DDI.

[0063] against Figure 4 The display driver chip 100 shown in this application can be implemented in the following ways in specific implementation.

[0064] In one possible implementation, such as Figure 5 As shown, when the electronic device displays the Nth frame image, the AP can first issue a C1 instruction (start refresh instruction) when displaying the Nth frame image. The C1 instruction is used to instruct the display driver chip 100 to perform a partial refresh display driving mode. Then, the AP can continue to issue a C2 instruction (data clear instruction) to instruct the compensation memory 101 in the display driver chip 100 to execute the sent C2 instruction to clear the data stored in the compensation memory 101. This can clear the brightness compensation and other related data stored in the compensation memory 101, and can avoid display errors on the screen.

[0065] The first region can represent the area on the display screen where the image data is not updated when the N+1th frame of the image is displayed; the second region can represent the area on the display screen where the image data needs to be updated when the N+1th frame of the image is displayed.

[0066] Then, after determining that the compensation memory 101 has been cleared, the AP can send the image data of the first area to the compensation memory 101 through the display chip 103 using the first data path, and store it in the compensation memory 101; if the image data of the first area is stored in the compensation memory 101, it can continue to issue a C4 instruction (data refresh instruction) to make the compensation memory 101 execute the data refresh instruction to refresh and display the image data of the first area on the first area of ​​the display screen.

[0067] And, such as Figure 6 As shown, the AP can use the second data path through the display chip 103 to send the image data of the second area to the display screen, so as to refresh and display the image data of the second area on the second area of ​​the display screen.

[0068] After the display finishes displaying on the screen, the display driver chip 100 can exit the partial refresh display driver mode, such as... Figure 7 As shown, when the display driver chip 100 receives a C5 command (exit refresh command) from the AP, the AP can use the display chip 103 and the second data path to send the image data of the entire display area to the display screen, so as to refresh and display the image data of the entire display area on the display screen. The image data is displayed immediately after transmission. When the display driver chip 100 receives a C5 command from the AP, it instructs the compensation memory 101 in the display driver chip 100 to clear the stored data. After the clearing is completed, the AP can continue to send other function commands except for the partial display refresh related commands to continue to perform related operations.

[0069] By adopting the above technical solution, the image data corresponding to the area that does not update the image data when the current frame is displayed can be temporarily stored in the compensation memory 101. Then, the image data of the area can be newly displayed according to the refresh instruction of the processor 102. At the same time, the image data corresponding to the area that needs to update the image data when the current frame is displayed can also be directly sent to the display. In this way, the partial refresh display function of the display screen can be realized when using Ram-less DDI.

[0070] against Figure 4 The display driver chip 100 shown in this application can also be implemented in the following ways in specific implementation.

[0071] In another possible implementation, such as Figure 8 As shown, when the electronic device displays the Nth frame image, the AP can first issue a D1 instruction (start refresh instruction) when displaying the Nth frame image. The D1 instruction is used to instruct the display driver chip 100 to perform a partial refresh display driver mode.

[0072] Then, the AP can continue to send D2 instructions (data clear instructions) to instruct the compensation memory 101 in the display driver chip 100 to execute the sent D2 instructions to clear the data stored in the compensation memory 101; this can clear the relevant data such as brightness compensation stored in the compensation memory 101, and can prevent the display screen from displaying errors.

[0073] Then, after the memory of the compensation memory 101 is cleared, the compensation memory 101 can transmit the clearing end information to the AP. After the AP determines that the memory of the compensation memory 101 is cleared, it can continue to send D3 instructions (data reception instructions) before the electronic device displays the N+1th frame image. When the display driver chip 100 receives the D3 instructions, the compensation memory 101 can determine the area position coordinates of the first area according to the C3 instructions. After the AP determines that the memory of the compensation memory 101 is cleared, it can send the image data of the first area to the compensation memory 101 through the display chip 103 using the first data path and store it in the compensation memory 101.

[0074] When the display driver chip 100 drives the display screen, the image data of the entire image can be transmitted to the screen for display through the second data path. However, the image data corresponding to the first area is not displayed, and only the other areas besides the first area are refreshed and displayed.

[0075] If the compensation memory 101 is unable to completely store the image of the first region (the unupdated region), the entire excess image region transmitted through the second data path can be displayed. This avoids the situation where the compensation memory 101 malfunctions, such as incomplete image storage, and the image can still be displayed using the traditional global refresh method.

[0076] Figure 9 This is a flowchart of a display driving method provided in an embodiment of this application, such as... Figure 9 As shown, the method is applied to a display driver chip, which includes a compensation memory connected to a processor and connected to the display chip via a first data path.

[0077] The method may include the following steps.

[0078] In step S101, image data sent by the display chip is acquired.

[0079] The display driver chip may include a Ram-less DDI.

[0080] Optionally, the display driver chip may include the compensation memory, one end of which may be connected to the data receiver (RX) of the display driver chip. The data receiver (RX) of the display driver chip may be connected to the processor through the display chip, and the other end of the compensation memory may be connected to the image compensation algorithm module.

[0081] For example, upon receiving a start refresh instruction sent by the processor, the display driver chip can receive image data sent by the AP through the display chip via the first data path via the RX terminal of the display driver chip, and then control the compensation memory to execute the data receiving instruction sent by the AP, wherein the data receiving instruction is used to instruct the compensation memory to receive the image data sent by the AP through the display chip via the first data path.

[0082] In step S102, the image data is stored in the compensation memory through the first data path.

[0083] In this step, if the display driver chip receives a data refresh command sent by the AP while the image data is stored in the compensation memory, it can control the compensation memory to send the stored image data to the image compensation algorithm module for data processing, so as to refresh and display the image data on the display screen.

[0084] In some embodiments, before storing the image data into the compensation memory through the first data path, a first area to be refreshed on the display screen can be determined according to the data receiving instruction sent by the processor, and then the image data of the first area sent by the display chip can be stored into the compensation memory through the first data path.

[0085] Optionally, the display driver chip can execute the data receiving instruction upon receiving a refresh start instruction sent by the processor, wherein the data receiving instruction is used to control the compensation memory to receive the first area to be refreshed on the display screen sent by the AP.

[0086] The first area can be an area on the display screen that does not update image data when the current frame is displayed; then the image data of the first area sent by the AP through the display chip can be received through the first data path and stored.

[0087] In step S103, if the image data is stored in the compensation memory, the image data is refreshed and displayed on the screen.

[0088] In this step, if the display driver chip receives a data refresh command sent by the AP while the image data is stored in the compensation memory, it can control the compensation memory to send the stored image data to the image compensation algorithm module for data processing, so as to refresh and display the image data on the display screen.

[0089] In some embodiments, if the compensation memory stores the image data of the first area, and the display driver chip receives a data refresh instruction sent by the AP, it can control the compensation memory to send the stored image data of the first area to the image compensation algorithm module for data processing, so as to refresh and display the image data of the first area on the first area of ​​the display screen.

[0090] By adopting the above technical solution, image data sent by the display chip is acquired; this image data is stored in a compensation memory via the first data path; and when the image data is stored in the compensation memory, it is refreshed and displayed on the display screen. In this way, when the display driver chip performs a refresh operation, image data is received via the first data path and stored in the compensation memory. During the refresh operation, this image data is then refreshed and displayed on the screen. This allows for partial refresh technology using the chip's built-in compensation memory, avoiding the need to load the entire interface with each refresh, reducing user waiting time, and improving user experience.

[0091] Figure 10 This is a flowchart of another display driving method provided in the embodiments of this application, such as... Figure 10 As shown, the method is applied to a display driver chip, which includes a compensation memory connected to a processor. The compensation memory is connected to the display chip via a first data path. The display driver chip also includes a second data path, through which the display chip is connected to the display screen.

[0092] The method may include the following steps.

[0093] In step S201, the processor sends a start refresh command.

[0094] In this step, when the electronic device displays the Nth frame image, the processor can first issue a refresh start command when displaying the Nth frame image. This refresh start command instructs the display driver chip to enter a partial refresh display driver mode.

[0095] In step S202, the data stored in the compensation memory is cleared.

[0096] In this step, the processor can continue to issue data clearing instructions to instruct the compensation memory in the display driver chip to execute the sent data clearing instructions to clear the data stored in the compensation memory; this can clear the brightness compensation and other related data stored in the compensation memory, and can prevent display errors.

[0097] In step S203, when the display driver chip receives the start refresh instruction sent by the processor, it receives the data receive instruction sent by the processor to determine the first area and the second area on the display screen to be refreshed according to the data receive instruction.

[0098] The first region can represent the area on the display screen where the image data is not updated when the N+1th frame of the image is displayed; the second region can represent the area on the display screen where the image data needs to be updated when the N+1th frame of the image is displayed.

[0099] In step S204, the image data of the first area sent by the display chip is obtained through the first data path and stored.

[0100] In this step, after determining that the compensation memory has been cleared, the processor can use the first data path via the display chip to send the image data of the first region to the compensation memory and store it in the compensation memory.

[0101] In step S205, the image data of the first area is refreshed and displayed on the first area of ​​the display screen.

[0102] In this step, if the image data of the first area is stored in the compensation memory, a data refresh command can be issued to cause the compensation memory to execute the data refresh command so as to refresh and display the image data of the first area on the display screen.

[0103] In step S207, the image data of the second area sent by the display chip is refreshed and displayed on the second area of ​​the display screen through the second data path.

[0104] In this step, the processor can use the second data path through the display chip to send the image data of the second area to the display screen, so as to refresh and display the image data of the second area on the second area of ​​the display screen.

[0105] By adopting the above technical solution, the image data corresponding to the area that does not update the image data when the current frame is displayed can be temporarily stored in the compensation memory. Then, the image data of the area can be newly displayed according to the refresh instruction of the processor. At the same time, the image data corresponding to the area that needs to update the image data when the current frame is displayed can also be directly sent to the display. In this way, the partial refresh display function of the display screen can be realized when using Ram-less DDI.

[0106] The display driving method provided in this application can be executed by a display driving device. This application uses the example of a display driving device executing a display driving method to illustrate the display driving device provided in this application.

[0107] Figure 11 This is a block diagram of a display driving device provided in an embodiment of this application, such as... Figure 11 As shown, the device is applied to a display driver chip, which includes a compensation memory connected to a processor and connected to the display chip via a first data path; the device 300 may include the following modules.

[0108] The acquisition module 301 is used to acquire image data sent by the display chip;

[0109] Storage module 302 is used to store the image data to the compensation memory through the first data path;

[0110] The first display module 303 is used to refresh and display the image data on the display screen when the image data is stored in the compensation memory.

[0111] Optionally, the storage module is used to determine a first area to be refreshed on the display screen according to the data receiving instruction sent by the processor; and to store the image data of the first area sent by the display chip into the compensation memory through the first data path.

[0112] The first display module is used to refresh and display the image data of the first area onto the first area of ​​the display screen.

[0113] Optionally, the display driver chip further includes a second data path, through which the display chip is connected to the display screen; the device further includes:

[0114] The determination module is used to determine the second area to be refreshed on the display screen based on the data received instruction;

[0115] The second display module is used to refresh and display the image data of the second area sent by the display chip to the second area of ​​the display screen through the second data path.

[0116] Optionally, the device further includes:

[0117] The clearing module is used to clear the data stored in the compensation memory before acquiring the image data sent by the display chip.

[0118] Using the above-described device, when the display driver chip performs a refresh operation, image data can be received through the first data path and stored in the compensation memory. When the refresh operation is performed, the image data can be refreshed and displayed on the display screen. This allows for partial refresh technology to be implemented through the compensation memory of the chip itself, avoiding the need to load the entire interface with each refresh, reducing user waiting time, and improving user experience.

[0119] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0120] Figure 12 A schematic block diagram illustrating the structure of a display device according to an embodiment of this application. (See attached diagram.) Figure 12 As shown, the display device 400 includes a display driver chip 100, a display screen, a display chip, and a processor.

[0121] The processor is used to send start refresh instructions and data receiving instructions; the display chip is used to send image data; the display driver chip 100 is used to drive the display screen; the display driver chip 100 adopts... Figure 3 The display driver chip 100 shown is shown.

[0122] Figure 13 A schematic block diagram illustrating the structure of an electronic device according to an embodiment of this application. For example... Figure 13 As shown, the electronic device 500 includes a display device 400; the display device 400 employs... Figure 12 The display device shown.

[0123] The display driver in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television set (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the scope of the device.

[0124] The display driver device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit the specific operating system used.

[0125] Optionally, such as Figure 14 As shown, this application embodiment also provides another electronic device 600, including a processor 601 and a memory 602. The memory 602 stores a program or instructions that can run on the processor 601. When the program or instructions are executed by the processor 601, they implement the various steps of the above-described display driving method embodiment and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0126] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0127] Figure 15 A schematic diagram of the hardware structure of another electronic device to implement an embodiment of this application.

[0128] The electronic device 700 includes, but is not limited to, components such as: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0129] Those skilled in the art will understand that the electronic device 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 14 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0130] The processor 710 is used to acquire image data sent by the display chip; store the image data in the compensation memory through the first data path; and refresh and display the image data on the display screen when the compensation memory contains the image data.

[0131] In this embodiment, the display driver chip disclosed herein includes a compensation memory connected to a processor and connected to the display chip via a first data path. Upon receiving a refresh start command from the processor, the display driver chip executes a data receiving command sent by the processor to acquire image data sent by the display chip via the first data path and store it in the compensation memory. When the compensation memory contains the image data, it executes a data refresh command to refresh and display the image data on the display screen. Thus, when the display driver chip performs a refresh start operation, it can receive image data via the first data path and store the image data in the compensation memory, so that when a refresh operation is performed, the image data can be refreshed and displayed on the display screen. This enables partial refresh technology through the compensation memory inherent in the chip itself.

[0132] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0133] The memory 709 can be used to store software programs and various data. The memory 709 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include volatile memory or non-volatile memory, or it may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0134] Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0135] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described display driver method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0136] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0137] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described display driver method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0138] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0139] This application provides a computer program product that is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described display driving method embodiments, and can achieve the same technical effects. To avoid repetition, it will not be described again here.

[0140] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0141] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0142] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A display driver chip, the display driver chip including a compensation memory connected to a processor, characterized in that, The compensation memory and the display chip are connected through a first data path and a second data path; The display driver chip is configured to execute a data receiving instruction sent by the processor upon receiving a start refresh instruction sent by the processor, so as to obtain image data sent by the display chip through the first data path and store it in the compensation memory; When the image data is stored in the compensation memory, a data refresh instruction is executed to refresh and display the image data on the display screen; The display driver chip is configured to execute the data receiving instruction to determine a first area to be refreshed on the display screen according to the data receiving instruction; acquire and store the image data of the first area sent by the display chip through the first data path; and execute a data refresh instruction to refresh and display the image data of the first area on the first area of ​​the display screen when the image data of the first area is stored. The display driver chip is also used to execute the data receiving instruction to refresh and display the image data of the second area sent by the display chip to the second area of ​​the display screen through the second data path.

2. The display driver chip according to claim 1, characterized in that, The display driver chip is used to execute the data receiving instruction to determine the second area to be refreshed on the display screen according to the data receiving instruction.

3. The display driver chip according to claim 1 or 2, characterized in that, The display driver chip is further configured to execute a data clearing instruction sent by the processor before executing the data receiving instruction, so as to clear the data stored in the compensation memory.

4. A display driving method, characterized in that, The method is applied to a display driver chip, the display driver chip including a compensation memory connected to a processor, and the compensation memory and the display chip connected via a first data path; the method includes: Acquire image data sent by the display chip; The image data is stored in the compensation memory through the first data path; If the image data is stored in the compensation memory, the image data is refreshed and displayed on the screen. Wherein, storing the image data into the compensation memory through the first data path includes: Based on the data receiving instructions sent by the processor, the first area to be refreshed on the display screen is determined; The image data of the first area sent by the display chip is stored in the compensation memory through the first data path; The step of refreshing and displaying the image data on the display screen includes: The image data of the first area is refreshed and displayed on the first area of ​​the display screen; The display driver chip further includes a second data path, through which the display chip is connected to the display screen; the method further includes: Based on the data receiving instruction, determine the second area on the display screen to be refreshed; The image data of the second area sent by the display chip is refreshed and displayed on the second area of ​​the display screen through the second data path.

5. The method according to claim 4, characterized in that, The method further includes: Before acquiring the image data sent by the display chip, the data stored in the compensation memory is cleared.

6. A display device, characterized in that, This includes display driver chips, displays, display chips, and processors; The processor is used to send start refresh instructions and data receive instructions; The display chip is used to send image data; The display driver chip is used to drive the display screen to display; The display driver chip is the display driver chip according to any one of claims 1-3.

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