CN-121982981-A - Display device and driving method thereof

Abstract

The display device comprises an application processor, a time sequence controller, a driving module, a first visual angle driving module and a second visual angle driving module, wherein the application processor is configured to synthesize first visual angle image data and second visual angle image data into a group of composite image signal sources and output the composite image signal sources, the time sequence controller is configured to receive the composite image signal sources output by the application processor, split the composite image signal sources into the first visual angle image data and the second visual angle image data and output the first visual angle image data and the second visual angle image data, the driving module is used for receiving the first visual angle image data and outputting the first visual angle image data, the second visual angle driving module is used for receiving the first visual angle image data and displaying the first visual angle image, and the first visual angle pixel unit is used for receiving the second visual angle image data and displaying the second visual angle image. Thus being beneficial to reducing the cost of the product and improving the display effect.

Inventors

• LI PANPAN

Assignees

• 武汉天马微电子有限公司

Dates

Publication Date

20260505

Application Date

20260317

Claims (20)

1. 1. A display device, comprising: An application processor configured to synthesize the first view image data and the second view image data into a set of composite image signal sources and output; A timing controller electrically connected to the application processor and configured to receive the composite image signal source output by the application processor, split the composite image signal source into corresponding first view angle image data and second view angle image data, and output the first view angle image data and the second view angle image data; The driving module comprises a first visual angle driving module and a second visual angle driving module, wherein the first visual angle driving module is used for receiving and outputting the first visual angle image data, and the second visual angle driving module is used for receiving and outputting the second visual angle image data; The display panel comprises a first visual angle pixel unit and a second visual angle pixel unit, wherein the first visual angle pixel unit is used for receiving the first visual angle image data output by the first visual angle driving module and displaying a first visual angle image, and the second visual angle pixel unit is used for receiving the second visual angle image data output by the second visual angle driving module and displaying a second visual angle image.
2. 2. The display device of claim 1, wherein the application processor is configured to synthesize the composite image signal source using frequency domain synthesis, and wherein the timing controller is configured to extract the first view image data and the second view image data using frequency domain splitting.
3. 3. The display device according to claim 1, wherein a maximum operating frequency supported by the timing controller is greater than or equal to a sum of a display frequency of the first view image and a display frequency of the second view image.
4. 4. The display device according to claim 1, wherein a frame rate of the composite image signal source is greater than or equal to a sum of a display frequency of the first view image and a display frequency of the second view image.
5. 5. The display device according to claim 1, wherein the timing controller is electrically connected to the first viewing angle driving module through a first output port and electrically connected to the second viewing angle driving module through a second output port, and a data transmission bandwidth of the first output port is the same as a data transmission bandwidth of the second output port.
6. 6. The display device according to claim 5, wherein a display frequency of a first view image of the display panel is equal to a display frequency of the second view image, and a data transmission bandwidth of the first output port and the second output port is greater than or equal to a transmission bandwidth required for the first view image or the second view image.
7. 7. The display device according to claim 5, wherein a display frequency of a first view image of the display panel is not equal to a display frequency of the second view image, and a data transmission bandwidth of the first output port and the second output port is greater than or equal to a transmission bandwidth required for a higher display frequency of the first view image and the second view image.
8. 8. The display device according to claim 1, wherein the timing controller includes a buffer unit configured to buffer image data in the composite image signal source and convert the composite image signal source having a reception rate of a first bit rate, which is proportional to a sum of display frame numbers of the first view image and the second view image, into image data output having a transmission rate of a second bit rate.
9. 9. The display device of claim 1, wherein the timing controller comprises a frame counter configured to identify a frame sequence of the received composite image signal source.
10. 10. The display device according to claim 9, wherein the timing controller is configured to generate a viewing angle switching control signal based on a trigger edge of a vertical synchronization signal, the viewing angle switching control signal being configured to control on or off of a first output port and a second output port of the timing controller.
11. 11. The display device of claim 10, wherein when the first output port or the second output port is closed, the closed output port remains in a high impedance state.
12. 12. The display device according to claim 9, wherein the composite image signal source includes a plurality of frame image data including first frame group data and second frame group data alternately transmitted, wherein the first frame group data is first view image data and the second frame group data is second view image data, wherein one of the first frame group data includes at least one frame image data and one of the second frame group data includes at least one frame image data.
13. 13. The display device according to claim 12, wherein the number of frames of image data included in the single first frame group data is the same as the number of frames of image data included in the single second frame group data.
14. 14. The display device of claim 12, wherein a single one of the first frame sets of data comprises m frames of image data, a single one of the second frame sets of data comprises n frames of image data, m is 1 or more, n is 1 or more, and m is not equal to n.
15. 15. The display device of claim 12, wherein when the frame counter identifies first frame group data, the timing controller is configured to turn on a first output port and turn off a second output port, and transmit the first frame group data to the first viewing angle driving module through the first output port; When the frame counter recognizes the second frame group data, the timing controller is configured to close a first output port and open the second output port, and transmit the second frame group data to the second viewing angle driving module through the second output port.
16. 16. The display device of claim 9, wherein the composite image signal source comprises multi-frame image data, wherein first to nth frames are the first view image data, n+1st to mth frames are the second view data, N is a number of frames corresponding to the first view image, M-N is a number of frames corresponding to the second view image, wherein M and N are both positive integers, and M > N.
17. 17. The display device of claim 16, wherein when the frame counter identifies a first frame to an nth frame, the timing controller is configured to turn on a first output port and turn off a second output port, and transmit the first frame to the nth frame to the first viewing angle driving module through the first output port; When the frame counter identifies the (n+1) -th to (M) -th frames, the timing controller is configured to close a first output port and open the second output port, and transmit the (n+1) -th to (M) -th frames to the second viewing angle driving module through the second output port.
18. 18. The display device according to claim 1, wherein in the display panel, the first viewing angle pixel units and the second viewing angle pixel units are alternately arranged along the first direction.
19. 19. The display device of claim 18, wherein the display panel further comprises a light control assembly disposed on the light emitting side of the first viewing angle pixel cell and the second viewing angle pixel cell, the light control assembly comprising a light shielding layer and a microlens array; The shading layer is provided with a plurality of light-transmitting openings, and the shading layer and the micro-lens array layer are configured to guide the light beams emitted by the first visual angle pixel units to a first preset angle interval and guide the light beams emitted by the second visual angle pixel units to a second preset angle interval, so that the first visual angle pixel units and the second visual angle pixel units form mutually independent visual display areas in space.
20. 20. The display device according to claim 1, wherein the first viewing angle pixel unit and the second viewing angle pixel unit share a scan driving circuit in the display panel, the scan driving circuit includes a shift register in cascade connection, and the first viewing angle pixel unit and the second viewing angle pixel unit connected to the same shift register receive the same scan control signal.

Description

Display device and driving method thereof Technical Field The disclosure relates to the field of display technologies, and in particular, to a display device and a driving method thereof. Background With the development of display technology, in the scenes of vehicle-mounted display systems, public display and privacy protection, business/home entertainment and the like, there is a strong demand for different display pictures of the same screen, so that different display pictures are provided for different visual angles. For example, a display screen needs to simultaneously provide independent pictures that do not interfere with each other for two observers at different spatial locations. To achieve this effect, panels with specific directional light emitting structures are typically employed. However, the existing dual-view display product generally has the problem of high hardware cost. Disclosure of Invention In order to solve the above technical problems, the present disclosure provides a display device and a driving method thereof, which aim to reduce hardware cost of a display product. In a first aspect, the disclosure provides a display device, including an application processor, a timing controller, a driving module and a display panel, where the application processor is configured to synthesize first view image data and second view image data into a group of composite image signal sources and output the composite image signal sources, the timing controller is electrically connected to the application processor and configured to receive the composite image signal sources output by the application processor, split the composite image signal sources into corresponding first view image data and second view image data and output the corresponding first view image data, the driving module includes a first view driving module and a second view driving module, the first view driving module is configured to receive the first view image data and output the first view image data, the second view driving module is configured to receive the second view image data and output the second view image data, and the display panel includes a first view pixel unit and a second view pixel unit, the first view pixel unit is configured to receive the first view image data output by the first view driving module and display the first view image, and the second view pixel unit is configured to receive the second view image data output by the second view driving module and display the second view image. In a second aspect, the present disclosure provides a driving method of a display device, including: synthesizing the first view angle image data and the second view angle image data into a group of composite image signal sources by an application processor and outputting the composite image signal sources; receiving the composite image signal source through a time sequence controller, splitting the composite image signal source into corresponding first view angle image data and second view angle image data, and outputting the first view angle image data and the second view angle image data; The first visual angle driving module receives the first visual angle image data and transmits the first visual angle image data to a first visual angle pixel unit of the display panel, and the second visual angle driving module receives the second visual angle image data and transmits the second visual angle image data to a second visual angle pixel unit of the display panel; The first viewing angle pixel unit in the display panel displays a first viewing angle image based on the first viewing angle image data, and the second viewing angle pixel unit displays a second viewing angle image based on the second viewing angle image data. Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages: In the embodiment of the disclosure, the architecture of the dual-view dual-timing controller is simplified into the architecture of the dual-view single-timing controller, and in mass production, the cost of a single high-performance timing controller is far lower than the sum of two terminal timing controllers and peripheral circuits thereof, so that the product cost is effectively reduced. In addition, considering that the application processor needs to be connected with the time schedule controllers through physical ports, when only one time schedule controller is introduced, the application processor end can also save a group of physical ports, thereby effectively reducing the wiring complexity of the main board where the application processor is located. In addition, when two timing controllers and two independent signal sources are introduced into the display device, the images are extremely prone to be out of sync due to clock jitter. In this embodiment, the application processor encapsulates the first view angle image data and the second view angle image data in the same group o