WO2021258901A1 - 显示系统及其驱动方法 - Google Patents
显示系统及其驱动方法 Download PDFInfo
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- WO2021258901A1 WO2021258901A1 PCT/CN2021/093613 CN2021093613W WO2021258901A1 WO 2021258901 A1 WO2021258901 A1 WO 2021258901A1 CN 2021093613 W CN2021093613 W CN 2021093613W WO 2021258901 A1 WO2021258901 A1 WO 2021258901A1
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Definitions
- This article relates to but not limited to the field of display technology, especially a display system and its driving method.
- the embodiments of the present disclosure provide a display system and a driving method thereof.
- embodiments of the present disclosure provide a display system, including: one or more display screens, a plurality of source drivers, a timing controller, and a graphics processor.
- Each display screen is connected with one or more source drivers.
- the graphics processor is connected to the timing controller.
- the timing controller is connected to the plurality of source drivers.
- the graphics processor is configured to determine each frame of image of the one or more display screens, and transmit the image to the timing controller.
- the timing controller is configured to split each frame image of the one or more display screens into multiple sub-images through a point-to-point (P2P) transmission method, and output corresponding sub-images to multiple source drivers in parallel .
- the multiple source drivers are configured to provide the data signals of the sub-images to the one or more display screens in parallel during any one line scan process, so that the one or more display screens display the image.
- the present disclosure provides a driving method of a display system.
- the display system includes one or more display screens, a plurality of source drivers, a timing controller and a graphics processor. Each display screen is connected with one or more source drivers.
- the graphics processor is connected to the timing controller.
- the timing controller is connected to the plurality of source drivers.
- the driving method includes: the graphics processor determines each frame image of the one or more display screens, and transmits the image to the timing controller; the timing controller transmits Each frame of image of the one or more display screens is split into multiple sub-images, and the corresponding sub-images are output to multiple source drivers in parallel; the multiple source drivers are in parallel during any line scanning process. Providing the data signal of the sub-image to the one or more display screens, so that the one or more display screens display the image.
- FIG. 1 is a schematic diagram of a display system according to at least one embodiment of the present disclosure
- FIG. 2 is a schematic diagram of the image data processing process of the display system shown in FIG. 1;
- FIG. 3 is a timing diagram of one line scan of the display system shown in FIG. 1;
- FIG. 4 is another schematic diagram of the display system according to at least one embodiment of the present disclosure.
- FIG. 5 is another schematic diagram of the display system of at least one embodiment of the present disclosure.
- FIG. 6 is a flowchart of a driving method of a display system according to at least one embodiment of the present disclosure.
- the present disclosure includes and contemplates combinations with features and elements known to those of ordinary skill in the art.
- the embodiments, features, and elements already disclosed in the present disclosure can also be combined with any conventional features or elements to form a unique solution defined by the claims.
- Any feature or element of any embodiment can also be combined with features or elements from other solutions to form another unique solution defined by the claims. Therefore, it should be understood that any feature shown or discussed in this disclosure can be implemented individually or in any appropriate combination. Therefore, the embodiments are not subject to other restrictions except for the restrictions made according to the appended claims and their equivalents.
- one or more modifications and changes may be made within the protection scope of the appended claims.
- the specification may have presented the method or process as a specific sequence of steps. However, to the extent that the method or process does not depend on the specific order of the steps described herein, the method or process should not be limited to the steps in the specific order described. As those of ordinary skill in the art will understand, other sequence of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation on the claims. In addition, the claims for the method or process should not be limited to performing their steps in the written order, and those skilled in the art can easily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present disclosure.
- Electrode connection includes the case where the constituent elements are connected together by elements having a certain electrical function.
- An element having a certain electrical function is not particularly limited as long as it can transmit and receive electrical signals between connected constituent elements. Examples of “elements having a certain electrical function” include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having one or more functions.
- parallel refers to a state where the angle formed by two straight lines is -10° or more and 10° or less, and therefore, a state where the angle is -5° or more and 5° or less may be included.
- perpendicular refers to a state where the angle formed by two straight lines is 80° or more and 100° or less, and therefore, it may include an angle of 85° or more and 95° or less.
- At least one embodiment of the present disclosure provides a display system including: one or more display screens, a plurality of source drivers, a timing controller, and a graphics processor.
- Each display screen is connected with one or more source drivers.
- the graphics processor is connected to the timing controller.
- the timing controller is connected with a plurality of source drivers.
- the graphics processor is configured to determine each frame image of one or more display screens, and transmit the image to the timing controller.
- the timing controller is configured to split each frame image of one or more display screens into multiple sub-images through a peer-to-peer (P2P, Peer-to-Peer) transmission method, and output corresponding to multiple source drivers in parallel Sub-image.
- the multiple source drivers are configured to provide data signals of sub-images to one or more display screens in parallel during any line scan process, so that the one or more display screens display images.
- the display system may include multiple display screens, and each display screen may be connected to one or more source drivers.
- the display screen and the source driver may have a one-to-one or one-to-many relationship.
- the display system may include a display screen, and the display screen may be connected to multiple source drivers. In this example, the display screen and the source driver may have a one-to-many correspondence relationship.
- the display screen may be a liquid crystal display (LCD, Liquid Crystal Display).
- LCD liquid crystal display
- the display screen may be an Organic Light-Emitting Diode (OLED) display screen.
- OLED Organic Light-Emitting Diode
- the types of multiple display screens may be the same, for example, all LCDs, or the types of multiple display screens may be partially the same.
- the timing controller may output a corresponding sub-image to each source driver.
- this embodiment is not limited to this.
- the timing controller may output multiple sub-images to one source driver.
- a graphics processor can transmit each frame of image of one or more display screens to a timing controller, and a timing controller can output corresponding output to multiple source drivers in parallel through P2P transmission.
- Multiple source drivers can provide the data signals of the corresponding sub-images to the display screen in parallel, so that a graphics processor and a timing controller are used to realize multiple display screens or different display areas of a single display screen.
- Display control can simplify the complexity of the display system, save costs, and has good mass production.
- the P2P transmission method is adopted between the timing controller and the source driver, which can reduce data transmission interference and improve transmission speed and safety.
- the display system may include multiple display screens, and at least two of the multiple display screens may have different display resolutions.
- the display resolutions of the multiple display screens may be different from each other, or the display resolution of a part of the multiple display screens may be the same and different from the display resolution of another part of the display screen.
- this embodiment is not limited to this.
- any display screen may be divided into multiple display areas, and each display area may be driven by one source driver.
- multiple source drivers can provide data signals to each display area in parallel.
- a plurality of source drivers can drive corresponding display areas in parallel.
- the timing controller may include a plurality of first P2P interfaces, and each source driver may include at least one second P2P interface.
- the first P2P interface and the second P2P interface can have a one-to-one correspondence, and are connected through a P2P transmission line pair.
- the timing controller can be configured to split each frame image of one or more display screens into multiple sub-images through the amount of data transmitted through multiple first P2P interfaces, and output corresponding sub-images to multiple source drivers in parallel. image. Wherein, the number of split sub-images can be the same as the number of the first P2P interface.
- the timing controller may be configured to output a sub-image to the corresponding source driver through a first P2P interface.
- each source driver may include a second P2P interface. That is, a P2P transmission line pair can transmit sub-images between the timing controller and each source driver.
- a source driver may include multiple second P2P interfaces, and the timing controller and the source driver may perform sub-image transmission through multiple P2P transmission line pairs, and the source driver may receive multiple sub-images.
- the source driver can sequentially provide data signals of multiple sub-images, that is, provide data signals of multiple sub-images to the corresponding display screen in a serial scanning manner.
- the amount of data transmitted by the plurality of first P2P interfaces may be the same or different. In other words, the sizes of multiple sub-images may be the same or different. In some examples, the amount of data transmitted by the multiple first P2P interfaces may be pre-configured.
- the graphics processor may be configured to determine each frame image of one or more display screens based on data received from one or more video image information sources, and transmit the image to Timing controller.
- the graphics processor can be connected to multiple video image information sources, and each video image information source can provide display image data for one display screen, or each video image information source can provide one display for one display screen. Display image data corresponding to the area.
- the video image information source may be a camera device or a storage device.
- the graphics processor may be connected to a video image information source, and the video image information source may provide display image data of one or more display screens.
- the video image information source may be a storage device.
- the display system of this embodiment may include multiple display screens. Multiple displays can be set independently. In some examples, multiple display screens may be placed in different positions, and used as separate display screens for display, so as to achieve multiple functional combinations. For example, in the field of in-vehicle display, the multiple display screens of the display system can be used as any of the instrument display, air-conditioning display, central control display, rear-seat entertainment display, rear-view mirror display, etc., respectively. However, this embodiment is not limited to this. In some examples, multiple display screens can be spliced into one large display screen.
- FIG. 1 is a schematic diagram of a display system according to at least one embodiment of the disclosure.
- the display system provided by this embodiment may include: two display screens (for example, a first display screen 11 and a second display screen 12), multiple source drivers (for example, three The first source driver 13, the three second source drivers 14 ), a timing controller (TCON, Timing Controller) 15 and a graphics processor 16.
- the graphics processor 16 is connected to the timing controller 15.
- the timing controller 15 is connected to three first source drivers 13 and three second source drivers 14, and the three first source drivers 13 are connected to the first display screen 11.
- the three second source drivers 14 are connected to the second display screen 12.
- the display screen and the source driver have a one-to-many relationship. This embodiment does not limit the number of display screens and source drivers.
- both the first display screen 11 and the second display screen 12 may be LCDs. However, this embodiment is not limited to this.
- the graphics processor 16 may be connected to two video image information sources (for example, a first video image information source 171 and a second video image information source 172).
- the video image information source may be a camera device or a storage device.
- the graphics processor 16 may include a system on chip (SOC, System on Chip) 161 and a set of serializers and deserializers 162.
- the system-on-chip 161 may receive the image data to be displayed on the first display screen 11 from the first video image information source 171, and receive the image data to be displayed on the second display screen 12 from the second video image information source 172, and combine the first A frame of image to be displayed on the display screen 11 and a frame of image to be displayed on the second display screen 12 are physically spliced to obtain a frame of spliced image and transmitted to the serializer and deserializer 162 for data format conversion (for example, converted into a differential signal) Format spliced image); the serializer and deserializer 162 can transmit a frame of the spliced image after format conversion to the timing controller 15 through an embedded display port (eDP, embedded Display Port) high-speed transmission interface.
- eDP embedded Display Port
- Physical stitching means to stitch multiple frames of images without changing the resolution of the image. For example, multiple frames of images can be stitched along the row extension direction or along the column extension direction.
- the graphics processor 16 may also provide a plurality of input control signals for controlling the display to the timing controller 15, for example, a vertical synchronization signal, a horizontal synchronization signal, and the like.
- the system on chip 161 may include a processor, a first register, a second register, and a third register.
- the first temporary memory may store the image data received from the first video image information source 171
- the second temporary memory may store the image data received from the second video image information source 172.
- the processor may splice one frame of image data fetched from the first temporary memory and one frame of image data fetched from the second temporary memory, and store the obtained one frame of spliced image data in the third temporary memory.
- this embodiment is not limited to this.
- the timing controller 15 may include six first P2P interfaces 181, and each source driver may include one second P2P interface 182.
- the first P2P interface 181 and the second P2P interface 182 have a one-to-one correspondence, and are connected through the P2P transmission line pair 18.
- a P2P transmission line pair 18 connecting a first P2P interface 181 and a second P2P interface 182 can be used to transmit P2P differential signals to implement data transmission between the timing controller and the source driver. Independent data transmission can be performed between the timing controller 15 and each source driver.
- the timing controller 15 can split a frame of spliced image received from the graphics processor 16 into a plurality of sub-images by the amount of data transmitted through the multiple first P2P interfaces 181, and the size of each split sub-image can correspond to The amount of data transmitted by the first P2P interface 181 matches.
- the timing controller 15 provides a frame of spliced image to multiple first P2P interfaces, and the multiple first P2P interfaces determine the amount of image data to be transmitted according to the amount of data transmitted respectively, so as to realize the splitting of the spliced image.
- the amount of data transmitted by the first P2P interface 181 may be configured in advance.
- the amount of data transmitted by the plurality of first P2P interfaces 181 may be the same or different.
- the timing controller 15 can transmit a sub-image to a source driver through a P2P data line pair.
- the timing controller 15 may split the received spliced image frame into six sub-images through six first P2P interfaces, and transmit each sub-image independently to the corresponding sub-image through the P2P transmission line pair.
- Source driver In this exemplary embodiment, the P2P transmission mode is adopted for data transmission between the timing controller and the source driver, which can reduce data transmission interference and improve transmission speed and safety.
- the data transmitted by each first P2P interface may include a frame header, a sub-image, and a frame trailer.
- the frame header may include system configuration parameters, for example, synchronization parameters and frame data start flag parameters.
- the synchronization parameters between the multiple first P2P interfaces can be cancelled (for example, set to empty), that is, each first P2P interface does not It will receive the synchronization signal of the previous first P2P interface, and each first P2P interface can independently perform data transmission.
- the frame data start flag parameter can be set to the rising edge or the falling edge of the frame synchronization signal.
- the amount of data transmitted by each first P2P interface can be set according to the design amount of each first P2P interface and the amount of data that needs to be sent to the source driver. For example, the amount of data transmitted by each first P2P interface may be less than the design amount of the first P2P interface, and less than or equal to the amount of data that needs to be sent to the source driver.
- the end of the frame can include termination flags and check information.
- the timing controller receiving an image with a resolution of 1920RGB*720 as an example.
- the first first P2P interface can transmit a resolution of 1920 *720 sub-image (that is, the data in the first to 1920 columns of the image with a resolution of 1920RGB*720)
- the second first P2P interface can transmit sub-images with a resolution of 1920*720 (that is, the resolution is 1920RGB* 720 images from 1921 to 3840 columns)
- the third first P2P interface can transmit sub-images with a resolution of 1920*720 (that is, data from columns 3841 to 5760 in an image with a resolution of 1920RGB*720) .
- the three first P2P interfaces can transmit corresponding sub-images in parallel.
- each of the first display screen 11 and the second display screen 12 may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels.
- a plurality of gate lines and a plurality of data lines are arranged to cross each other, the plurality of gate lines may extend in a row direction and be parallel to each other, and a plurality of data lines may extend in a column direction and are parallel to each other.
- Multiple pixels can be respectively connected to the gate line and the data line and arranged in an array.
- the display system of this exemplary embodiment may further include: a plurality of gate drivers connected to the first display screen 11 and the second display screen 12, respectively.
- the gate driver may be connected to a plurality of gate lines, and transmit gate signals to the pixels through the plurality of gate lines.
- Each source driver can be connected to multiple data lines, and transmit data signals to the pixels through the multiple data lines.
- the first display screen 11 and the second display screen 12 may be respectively divided into three display areas, and each display area of the first display screen 11 corresponds to a first source.
- each display area of the second display screen 12 corresponds to a second source driver 14. That is, each first source driver 13 can be connected to a data line in a display area in the first display screen 11 and provide a data signal to the display area.
- Each second source driver 14 can be connected to a data line in a display area of the second display screen 12 and provide a data signal to the display area.
- the timing controller 15 may be connected to a plurality of gate drivers, three first source drivers 13 and three second source drivers 14, respectively, and may provide The driver provides gate control signals, and provides data control signals and corresponding sub-images to the first source driver 13 and the second source driver 14.
- the display areas of the first display screen 11 and the second display screen 12 can be driven in parallel to display the corresponding sub-images, respectively , So that each frame of image is completely displayed on the first display screen 11 and the second display screen 12.
- Fig. 2 is a schematic diagram of image data processing of the display system shown in Fig. 1.
- the display resolutions of the first display screen 11 and the second display screen 12 are both 1920RGB*720 (that is, 5760*720).
- the total display resolution of the first display screen 11 and the second display screen 12 is 3840RGB*720.
- the graphics processor 16 can convert the first image P1 with a resolution of 1920RGB*720 to be displayed on the first display screen 11 and a second image with a resolution of 1920RGB*720 to be displayed on the second display screen 12 P2 is spliced into a spliced image P with a resolution of 3840RGB*720, and the spliced image P is transmitted to the timing controller 15.
- the graphics processor 16 physically splices the two first image P1 and the second image P2 with the same resolution, that is, without changing the resolution of the first image P1 and the second image P2, the first image P1 and the second image P2 are aligned along the line extension direction.
- An image P1 and a second image P2 are stitched together.
- the timing controller 15 can split the stitched image P into six sub-images with a resolution of 1920*720 through the six first P2P interfaces 181, and synchronously transmit them to the corresponding source driver in parallel. Each source driver can independently receive a corresponding sub-image.
- the first image P1 can be split into a first sub-image P11, a second sub-image P12, and a third sub-image P13
- the second image P2 can be split into a fourth sub-image P21, a fifth sub-image P22, and Sixth sub image P23.
- the first display screen 11 may include 720 gate lines and 5760 data lines.
- the first display screen 11 is equally divided into three display areas, and each display area may include 720 gate lines and 1920 data lines.
- each first source driver 13 receives the sub-image, it can independently provide data signals to 1920 data lines in the corresponding display area.
- the three first source drivers 13 and the three second source drivers 14 can drive the first display screen 11 and the second display screen 12 in parallel for image display.
- the first display screen 11 can simultaneously display the first sub-image P11, the second sub-image P12, and the third sub-image P13, and the second display screen 12 can simultaneously display the fourth sub-image P21, the fifth sub-image P22, and the sixth sub-image. Sub image P23. In this way, two first images and second images with a resolution of 1920RGB*720 can be completely displayed on the first display screen 11 and the second display screen 12, respectively.
- Fig. 3 is a timing diagram of one line scan of the display system shown in Fig. 1.
- the six source drivers that is, the three first source drivers 13 and the three second source drivers 14
- the first data line X1 connected to it scans to the 1920th data line X1920.
- Pixel clocks 1 to 6 respectively correspond to the scan timings of the six source drivers. It can be seen from Fig. 3 that in one line scan process, six source drivers can scan in parallel without affecting each other.
- the scans of the three first source drivers 13 are spliced together to form a complete line scan of the first display screen 11; the scans of the three second source drivers 14 are spliced together to form a complete line scan of the second display screen 12.
- the actual scanning duration of one line of the three first source drivers 13 is 1/3 of the scanning duration of all data lines of the first display screen 11, and the remaining 2/3 duration can be used as the splicing time error .
- the actual scanning duration of one line of the three second source drivers 14 is 1/3 of the scanning duration of all the data lines of the second display screen 12, and the remaining 2/3 duration can be used as the splicing time error.
- the human eye will not feel the picture display abnormality, and the display effect of the display system can be guaranteed.
- each source driver of this exemplary embodiment can be used as an independent unit to drive data on the display screen without affecting each other, and can support the realization of unified control of multiple display screens.
- each source driver needs to receive a complete image of the corresponding display screen.
- the source driver of this embodiment only needs to receive independently driven sub-images. Reduce the amount of data transmission and processing, simplify the complexity of the display system.
- one graphics processor and one timing controller are used to control the two display screens, which can simplify the complexity of the display system, save costs, and have good mass production.
- the display system of this embodiment can be applied to the field of vehicle display.
- the first display screen 11 and the second display screen 12 can be used as a meter display screen and a central control display screen, respectively.
- the display system of this embodiment can be applied to the display field of exhibition halls or video conferences, and the first display screen 11 and the second display screen 12 can be integrated as a large display screen.
- FIG. 4 is another schematic diagram of the display system according to at least one embodiment of the present disclosure.
- the display system of this exemplary embodiment may include: three display screens (for example, a first display screen 211, a second display screen 212, and a third display screen 213), a plurality of source drivers (for example, , Three first source drivers 221, one second source driver 222 and one third source driver 223), gate drivers (not shown), one timing controller 25, and one graphics processor 26.
- the graphics processor 26 is connected to the timing controller 25; the timing controller 25 is respectively connected to three first source drivers 221, one second source driver 222, and one third source driver 223; three first source drivers 221 is connected to the first display screen 211, the second source driver 222 is connected to the second display screen 212, and the third source driver 223 is connected to the third display screen 213.
- the first display screen 211 is divided into three display areas 2110, and the display areas 2110 correspond to the first source driver 221 in a one-to-one manner.
- the display screen and the source driver have a one-to-one or one-to-many relationship. This embodiment does not limit the number of display screens and source drivers.
- the display resolutions of the first display screen 211, the second display screen 212, and the third display screen 213 may be different.
- the display resolution of the first display screen 211 may be 1920RGB*720
- the display resolution of the second display screen 212 may be 640RGB*200
- the display resolution of the third display screen 213 may be 960RGB*1080.
- the timing controller 25 includes five first P2P interfaces 281, and each source driver includes one second P2P interface 282.
- the first P2P interface 281 and the second P2P interface 282 have a one-to-one correspondence, and are connected through a P2P transmission line pair 28.
- the graphics processor 26 may receive image data to be displayed on the first display screen 211, the second display screen 212, and the third display screen 213 from three video image information sources.
- Each video image information source can provide image data to be displayed on a display screen.
- the graphics processor may receive image data to be displayed on the first display screen 211 from three video image information sources, and each video image information source may provide image data to be displayed on a display area 2110 of the first display screen 211.
- the graphics processor may receive image data to be displayed on the second display screen 212 and the third display screen 213 from a video image information source.
- the graphics processor 26 may set the first display screen 211 to display a frame of image with a resolution of 1920RGB*720, and the second display screen 212 to display a resolution of A frame of 640RGB*200 image and a frame of image with a resolution of 960RGB*1080 to be displayed on the third display screen 213 are spliced, and the spliced image is transmitted to the timing controller 25.
- the graphics processor 26 physically stitches three images with different resolutions.
- the timing controller 25 can split a received frame of spliced image into five sub-images through the five first P2P interfaces 281, and the five sub-images respectively correspond to the three display areas 2110 and the second display screen of the first display screen 211. 212 and the third display screen 213. The sizes of the five sub-images are different.
- the timing controller 25 can synchronously transmit the five sub-images to the five source drivers (ie, three first source drivers 221, one second source driver 222, and one third source driver) through the five first P2P interfaces 281 in parallel. Source driver 223).
- Each source driver can receive a sub-image independently, and drive the corresponding display area or display screen to display the sub-image in parallel. In this way, a graphics processor and a timing controller can be used to uniformly control three display screens with different display resolutions for independent display, thereby simplifying the complexity of the display system, saving costs, and having good mass production. .
- the three first source drivers 221 can scan from the first data line X1 to which they are connected to the 1920th data line X1920, respectively.
- the second source driver 222 can scan from the first data line connected to the 1920th data line
- the third source driver 223 can scan from the first data line connected to the 2880th data line .
- the five source drivers can scan in parallel without affecting each other.
- the display system provided by this exemplary embodiment can be applied to the field of vehicle display, and the three display screens can be used as independent display screens for display.
- the first display screen 211 may be used as a meter display screen
- the second display screen 212 may be used as an air conditioner display screen
- the third display screen 213 may be used as a central control display screen.
- FIG. 5 is another schematic diagram of the display system according to at least one embodiment of the present disclosure.
- the display system of this exemplary embodiment may include: a display screen 31, three source drivers 33, a gate driver (not shown), a timing controller 35, and a graphics processor 36.
- the graphics processor 36 is connected to the timing controller 35, the timing controller 35 is connected to three source drivers 33, and the three source drivers 33 are connected to the display screen 31.
- the display screen and the source driver have a one-to-three relationship. This embodiment does not limit the number of source drivers.
- the display screen 31 may be equally divided into three display areas 310, and the display resolutions of the three display areas may be the same. However, this embodiment is not limited to this. In some examples, the display screen 31 may be divided into multiple display areas with different display resolutions, and each display area is connected to a source driver.
- the image processor 36 can receive image data to be displayed on the display screen 31 from three video image information sources, and each video image information source can provide one image data to be displayed in the display area 310.
- the graphics processor may receive image data to be displayed on the display screen 31 from one video image information source, or may receive image data to be displayed on the display screen 31 from two video image information sources.
- the graphics processor 36 may transmit the image to be displayed on the display screen 31 (for example, with a resolution of 1920RGB*720) to the timing controller 35.
- the timing controller 35 can split the received image into three sub-images through the three first P2P interfaces 381, and synchronously transmit the three sub-images to the three source drivers 33 through the three P2P transmission line pairs 38 in parallel.
- Each source driver 33 may receive one sub-image through the second P2P interface 382.
- the resolution of each sub-image may be 1920*720.
- the three source drivers 33 can drive the corresponding display areas 310 in parallel to display sub-images.
- a complete frame of image with a resolution of 1920RGB*720 can be displayed on the display screen 31.
- each source driver can be used as an independent unit to drive the display screen data without affecting each other, can support the realization of unified control of multiple display areas of a single display screen, can improve the display effect, and save cost.
- FIG. 6 is a flowchart of a driving method of a display system according to at least one embodiment of the present disclosure.
- the display system may include: one or more display screens, multiple source drivers, a timing controller, and a graphics processor. Each display screen is connected with one or more source drivers.
- the graphics processor is connected to the timing controller.
- the timing controller is connected with a plurality of source drivers.
- the driving method of the display system of this embodiment may include steps S0 to S2.
- Step S0 The graphics processor determines each frame of image of one or more display screens, and transmits the image to the timing controller.
- Step S1 The timing controller splits each frame of image of one or more display screens into multiple sub-images through P2P transmission mode, and outputs corresponding sub-images to multiple source drivers in parallel.
- Step S2 the multiple source drivers provide data signals of sub-images to one or more display screens in parallel during any line scan process, so that the one or more display screens display the image.
- the display system may include multiple display screens, and at least two of the multiple display screens have different display resolutions.
- one display screen may be divided into a plurality of display areas, and each display area may be driven by one source driver.
- Step S2 may include: during any line scan process of the display screen, a plurality of source drivers provide data signals to the corresponding display area in parallel.
- the timing controller may include a plurality of first P2P interfaces, each source driver may include at least one second P2P interface, and the first P2P interface and the second P2P interface have a one-to-one correspondence.
- Step S1 may include: the amount of data transmitted by the timing controller through the multiple first P2P interfaces, splitting each frame image of one or more display screens into multiple sub-images, and outputting corresponding sub-images to multiple source drivers in parallel. Image; where the number of split sub-images is the same as the number of the first P2P interface.
- a graphics processor can transmit each frame of image of one or more display screens to a timing controller, and a timing controller can transmit to multiple sources in parallel through P2P transmission.
- the driver outputs the corresponding sub-images, and multiple source drivers can provide the data signals of the corresponding sub-images to the display screen in parallel, so that a graphics processor and a timing controller can realize the difference between multiple display screens or a single display screen.
- the display control of the display area can simplify the complexity of the display system, save costs, and has good mass production.
- the P2P transmission method is adopted between the timing controller and the source driver, which can reduce data transmission interference and improve transmission speed and safety.
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Abstract
Description
Claims (10)
- 一种显示系统,包括:一个或多个显示屏、多个源极驱动器、一个时序控制器以及一个图形处理器;每个显示屏与一个或多个源极驱动器连接;所述图形处理器与所述时序控制器连接;所述时序控制器与所述多个源极驱动器连接;所述图形处理器,配置为确定所述一个或多个显示屏的每一帧图像,并将所述图像传输给所述时序控制器;所述时序控制器,配置为通过点对点P2P传输方式将所述一个或多个显示屏的每一帧图像,拆分为多个子图像,并行地向多个源极驱动器输出对应的子图像;所述多个源极驱动器,配置为在任一次行扫描过程中,并行地向所述一个或多个显示屏提供所述子图像的数据信号,以使所述一个或多个显示屏显示所述图像。
- 根据权利要求1所述的显示系统,其中,所述显示屏为多个,且多个显示屏中至少两个显示屏具有不同的显示分辨率。
- 根据权利要求1所述的显示系统,其中,所述时序控制器包括多个第一P2P接口,每个源极驱动器包括至少一个第二P2P接口,所述第一P2P接口和所述第二P2P接口一一对应,并通过P2P传输线对连接;所述时序控制器配置为通过所述多个第一P2P接口传输的数据量,将所述一个或多个显示屏的一帧图像,拆分为多个子图像,并行地向多个源极驱动器输出对应的子图像;拆分的所述子图像的数目与所述第一P2P接口的数目相同。
- 根据权利要求3所述的显示系统,其中,所述多个第一P2P接口传输的数据量相同或不同。
- 根据权利要求1所述的显示系统,其中,所述显示屏为多个,且多个显示屏独立设置。
- 根据权利要求1所述的显示系统,其中,所述显示屏被划分为多个显示区域,每个显示区域由一个源极驱动器驱动;在所述显示屏的任一次行扫 描过程中,多个源极驱动器并行地向对应的显示区域提供数据信号。
- 一种显示系统的驱动方法,其特征在于,所述显示系统包括一个或多个显示屏、多个源极驱动器、一个时序控制器以及一个图形处理器;每个显示屏与一个或多个源极驱动器连接;所述图形处理器与所述时序控制器连接;所述时序控制器与所述多个源极驱动器连接;所述驱动方法,包括:所述图形处理器确定所述一个或多个显示屏的每一帧图像,并将所述图像传输给所述时序控制器;所述时序控制器通过点对点P2P传输方式将所述一个或多个显示屏的每一帧图像,拆分为多个子图像,并行地向多个源极驱动器输出对应的子图像;所述多个源极驱动器在任一次行扫描过程中,并行地向所述一个或多个显示屏提供所述子图像的数据信号,以使所述一个或多个显示屏显示所述图像。
- 根据权利要求7所述的驱动方法,其中,所述显示屏为多个,且多个显示屏中至少两个显示屏具有不同的显示分辨率。
- 根据权利要求7所述的驱动方法,其中,所述时序控制器包括多个第一P2P接口,每个源极驱动器包括至少一个第二P2P接口,所述第一P2P接口和所述第二P2P接口一一对应,并通过P2P传输线对连接;其中,所述时序控制器通过P2P传输方式将所述一个或多个显示屏的每帧图像,拆分为多个子图像,并行地向多个源极驱动器输出对应的子图像,包括:所述时序控制器通过多个第一P2P接口传输的数据量,将所述一个或多个显示屏的每一帧图像拆分为多个子图像,并行地向多个源极驱动器输出对应的子图像,其中,拆分的所述子图像的数目与所述第一P2P接口的数目相同。
- 根据权利要求7所述的驱动方法,其中,所述显示屏被划分为多个显示区域,每个显示区域由一个源极驱动器驱动;其中,所述多个源极驱动器在任一次行扫描过程中,并行地向所述一个或多个显示屏提供所述子图像的数据信号,包括:在所述显示屏的任一次行 扫描过程中,多个源极驱动器并行地向对应的显示区域提供数据信号。
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US20220343831A1 (en) | 2022-10-27 |
US11727855B2 (en) | 2023-08-15 |
CN111613186A (zh) | 2020-09-01 |
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