CN114267293B - Display device and display method thereof - Google Patents
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Abstract
The application provides a display device and a display method thereof, wherein the display device is in a first display mode, N time sequence controllers all receive first image data which are the same and have first frequency and respectively output N different first sub-image data which have first frequency to a display panel, the N different first sub-image data form the first image data, a plurality of sub-pixels of each display area receive one corresponding first sub-image data, and the display panel displays a first image at the first frequency; the display device is in a second display mode, the N time sequence controllers respectively receive corresponding second sub-image data in the N second sub-image data with different second frequencies and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data form second image data, the plurality of sub-pixels in each display area receive corresponding second sub-image data, and the display panel displays a second image at the second frequency.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a display device and a display method thereof.
Background
At present, the number of ultra high definition display devices having a refresh frequency of 120Hz is gradually increasing, but ultra high definition display devices having a refresh frequency of 60Hz are still dominant. The System On Chip of the ultra-high-definition display device with the refresh frequency of 120Hz and the System On Chip of the ultra-high-definition display device with the refresh frequency of 60Hz are driven in different manners, and when the video data with the refresh frequency of 60Hz is input to the display panel with the refresh frequency of 120Hz, the System On Chip needs to convert the video data with the refresh frequency of 60Hz into the video data with the refresh frequency of 120Hz, however, the System On Chip converts the video data with the refresh frequency of 60Hz into the video data with the refresh frequency of 120Hz, which causes the output delay of the video data and the display delay.
Therefore, a technical solution is needed to solve the problem of display delay occurring when video data with a refresh rate of 60Hz is input to a display panel with a refresh rate of 120 Hz.
Disclosure of Invention
The present application is directed to a display device and a display method thereof, wherein the display device can display images with different frequencies in a compatible manner and avoid the problem of display delay.
In order to realize the purpose, the technical scheme is as follows:
a display device is provided with a first display mode and a second display mode and comprises N time sequence controllers and a display panel electrically connected with the N time sequence controllers, wherein the display panel is provided with N display areas, one display area comprises a plurality of sub-pixels, and N is an integer greater than or equal to 2;
when the display device is in a first display mode, the N time schedule controllers in a first working state all receive the same first image data with a first frequency and respectively output one corresponding first sub-image data of the N first sub-image data with the first frequency, the N first sub-image data with the first frequency are different from each other to form the first image data, the plurality of sub-pixels of each display area in the N display areas receive one corresponding first sub-image data of the N first sub-image data, and the display panel displays a first image corresponding to the first image data at the first frequency;
when the display device is in a second display mode, the N time schedule controllers in the second working state respectively receive corresponding second sub-image data in N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form second image data, the plurality of sub-pixels in each of the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image corresponding to the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is larger than the first frequency.
A display method of a display device, the display device having a first display mode and a second display mode, the display device comprising N timing controllers and a display panel electrically connected to the N timing controllers, the display panel having N display areas, one of the display areas comprising a plurality of sub-pixels, N being an integer greater than or equal to 2, the method comprising:
when the display device is in a first display mode, the N time schedule controllers in a first working state all receive the same first image data with a first frequency and respectively output one corresponding first sub-image data in the N first sub-image data with the first frequency which are different from each other to the display panel, the N first sub-image data which are different from each other form the first image data, the plurality of sub-pixels in each display area in the N display areas receive one corresponding first sub-image data in the N first sub-image data, and the display panel displays the first image corresponding to the first image data at the first frequency;
when the display device is in a second display mode, the N timing controllers in the second working state respectively receive corresponding second sub-image data in N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form second image data, the plurality of sub-pixels in each of the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image corresponding to the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is greater than the first frequency.
Has the advantages that: when the display device is in a first display mode, N time schedule controllers in a first working state all receive same first image data with first frequency and respectively output corresponding first sub-image data in N first sub-image data with different frequencies to a display panel, the N first sub-image data with different frequencies form the first image data, a plurality of sub-pixels of each display area in N display areas receive corresponding first sub-image data in N first sub-image data, and the display panel displays a first image corresponding to the first image data at the first frequency; when the display device is in a second display mode, the N time sequence controllers in the second working state respectively receive corresponding second sub-image data in the N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form second image data, a plurality of sub-pixels of each display area in the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image corresponding to the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is greater than the first frequency, so that the display device can display the first image with the first frequency and display the second image with the second frequency at the first frequency, and the problem of display delay of the display panel is avoided.
Drawings
FIG. 1 is a schematic diagram of a display device according to an embodiment of the present application;
fig. 2 is a schematic diagram of a display device according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, the present application provides a display device 100, the display device 100 having a first display mode and a second display mode. The display device 100 includes a display panel 11, N timing controllers 12, and a System on chip (Soc) 13, where the N timing controllers 12 are electrically connected to the display panel 11, the N timing controllers 12 are electrically connected to the System chip 13, and N is an integer greater than or equal to 2.
In the present embodiment, the display panel 11 is a liquid crystal display panel. It is understood that the display panel 11 may be any one of an organic light emitting diode display panel or a micro light emitting diode display panel.
The display panel 11 has N display regions having the same area, and one display region is provided with a plurality of sub-pixels (not shown). It is understood that the areas of the N display regions may also be different.
When the display apparatus 100 is in the first display mode, the system chip 13 receives the first image data with the first frequency transmitted from the front end through a High Definition Multimedia Interface (HDMI) and outputs the first image data with the first frequency to the N timing controllers 12; the N timing controllers 12 in the first operating state receive the same first image data with the first frequency and respectively output one corresponding first sub-image data of the N mutually different first sub-image data with the first frequency to the display panel 11, and the N mutually different first sub-image data constitute the first image data; the plurality of sub-pixels of each of the N display regions receive a corresponding first sub-image data of the N first sub-image data and the display panel 11 displays a first image corresponding to the first image data at a first frequency. Each of the N timing controllers 12 in the first operating state selectively outputs first sub-image data of the first frequency through a buffer inside the timing controller 12, and the N timing controllers 12 in the first operating state selectively output different first sub-image data, that is, the first image data of the first frequency is split into N different first sub-image data, and the N timing controllers 12 in the first operating state selectively output one of the first sub-image data.
When the display device is in the second display mode, the system chip 13 receives the second image data with the second frequency sent by the front end through the high-definition multimedia interface, splits the second image data with the second frequency into N second sub-image data which are different from each other and have the second frequency, and outputs the second sub-image data to the N timing controllers 12; the N timing controllers 12 in the second operating state respectively receive corresponding one of the N second sub-image data with different frequencies and output the corresponding one of the second sub-image data to the display panel 11; the sub-pixels of each of the N display regions receive a corresponding one of the N second sub-image data and the display panel 11 displays a second image corresponding to the second image data at a second frequency. The resolution of the second image is the same as the resolution of the first image, the second frequency is greater than the first frequency, and the resolution of the first image is the same as the resolution of the display panel 11. For example, the first frequency is 20Hz-120Hz and the second frequency is 40Hz-360Hz.
In this embodiment, the second display mode of the display apparatus 100 may be a default display mode of the display apparatus 100, that is, after the display apparatus 100 is turned on, the display apparatus 100 enters the second display mode. When the display apparatus 100 needs to be switched from the second display mode to the first display mode, the N timing controllers 12 need to be switched from the second operating state to the first operating state. When the N timing controllers 12 are in the second operating state, the system chip 13 outputs a switching instruction to the N timing controllers 12 in the second operating state, and the N timing controllers 12 are switched from the second operating state to the first operating state according to the switching instruction. As shown in fig. 1, an I2C bus 17 is provided between the system chip 13 and the N timing controllers 12, and the system chip 13 transmits a switching instruction to the N timing controllers 12 through the I2C bus 17.
In another embodiment, as shown in fig. 2, the display device 100 further includes a plurality of wires 18, one wire 18 is disposed between the system chip 13 and each timing controller 12; when the system chip 13 transmits the first level to the corresponding timing controller 12 through the wire 18, the timing controller 12 is in the first operating state; when the system chip 13 transmits a second level, which is different from the first level, to the corresponding timing controller 12 through the wire 18, the timing controller 12 is in a second operation state. Wherein one of the first level and the second level is a high level and one of the first level and the second level is a low level.
In the present embodiment, when the display apparatus 100 is in the first display mode, the N timing controllers 12 in the first operating state output the display control signals to the display panel 11 at the first frequency to ensure that the display panel 11 displays the first image at the first frequency; when the display device 100 is in the second display mode, the N timing controllers 12 in the second operating state output display control signals to the display panel 11 at the second frequency to ensure that the display panel 11 displays the second image at the second frequency. The display panel 11 further includes a gate driver, the gate driver may be bound to the display panel, and the gate driver may also be integrated on the display panel; the control signal includes a clock signal and the like.
It should be noted that, when the timing controller in the first working state outputs the display control signal to the gate driver at the first frequency, the gate driver outputs the scan signal at the first frequency, the scan signal output at the first frequency is matched with the first sub-image data output at the first frequency, and the first image is displayed at the first frequency; similarly, when the timing controller in the second operating state outputs the display control signal to the gate driver at the second frequency, the gate driver outputs the scan signal at the second frequency, and the scan signal output at the second frequency is matched with the second sub-image data output at the second frequency, so as to display the second image at the second frequency.
In the present embodiment, the display panel 11 includes at least two source drivers 14, and the at least two source drivers 14 are bound on the display panel 11.
When the display device 100 is in the first display mode, the N timing controllers 12 in the first operating state transmit N first sub-image data, which are different from each other and have a first frequency, to the display panel 11 through the at least two source drivers 14; when the display device 100 is in the second display mode, the N second timing controllers 12 in the second operating state transmit N second sub-image data with a second frequency different from each other to the display panel 11 through the at least two source drivers 14.
In the present embodiment, the N timing controllers 12 are connected to at least two source drivers 14 through a point-to-point (P2P) transmission line 15.
In the present embodiment, the system chip 13 is connected to the N timing controllers 12 through a VBO (V-By-One) screen line 16.
The display device of the embodiment takes a display panel and N time schedule controllers electrically connected with the display panel as a basic framework, when the display device is in a first display mode, the N time schedule controllers in a first working state all receive the same first image data with a first frequency and respectively output one corresponding first sub-image data in the N first sub-image data with different frequencies to the display panel, the N first sub-image data with different frequencies form the first image data, a plurality of sub-pixels of each display area in the N display areas receive one corresponding first sub-image data in the N first sub-image data, and the display panel displays a first image corresponding to the first image data at the first frequency; when the display device is in a second display mode, the N time sequence controllers in the second working state respectively receive corresponding second sub-image data in the N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form second image data, a plurality of sub-pixels of each display area in the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image corresponding to the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is greater than the first frequency, so that the display device displays the first image with the first frequency at the first frequency and displays the second image with the second frequency at the second frequency, and the problem of display delay is avoided.
The application also provides a display method of a display device, the display device has a first display mode and a second display mode, the display device comprises N time schedule controllers and a display panel electrically connected with the N time schedule controllers, the display panel has N display areas, one display area comprises a plurality of sub-pixels, N is an integer greater than or equal to 2, and the method comprises the following steps:
when the display device is in a first display mode, the N time schedule controllers in the first working state all receive the same first image data with a first frequency and respectively output one corresponding first sub-image data of the N first sub-image data with the first frequency, the N first sub-image data with the first frequency are different from each other to the display panel, the N first sub-image data with the first frequency form the first image data, the plurality of sub-pixels of each display area in the N display areas receive one corresponding first sub-image data of the N first sub-image data, and the display panel displays a first image corresponding to the first image data with the first frequency;
when the display device is in a second display mode, the N time sequence controllers in the second working state respectively receive corresponding second sub-image data in the N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form the second image data, the plurality of sub-pixels in each of the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image of the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is greater than the first frequency.
In this embodiment, the display device further includes a system chip, and the method further includes:
when the display device is in a first display mode, the system chip outputs first image data with a first frequency to the N time sequence controllers;
when the display device is in the second display mode, the system chip splits the second image data with the second frequency into N second sub-image data which are different from each other and have the second frequency, and outputs the second sub-image data to the N timing controllers.
The display device is described in detail with reference to specific embodiments.
As shown in fig. 1, the display device 100 includes a display panel 11, two source drivers 14, two timing controllers 12, and a system chip 13.
The resolution of the display panel 11 is 3840 × 2160 (4K × 2K). The display panel 11 has two display regions including a first display region 11a and a second display region 11b, the area of the first display region 11a is equal to the area of the second display region 11b, and the first display region 11a and the second display region 11b are each provided with a plurality of sub-pixels. The first display area 11a corresponds to a left half screen of the display panel 11, and the second display area 11b corresponds to a right half screen of the display panel 11.
The two source drivers 14 include a first source driver 141 and a second source driver 142, and the first source driver 141 and the second source driver 142 are both bound on the display panel 11. The first source driver 141 is electrically connected to the plurality of sub-pixels of the first display region 11a through a plurality of data lines, and the second source driver 142 is electrically connected to the plurality of sub-pixels of the second display region 11b through a plurality of data lines.
The two timing controllers 12 include a first timing controller 121 and a second timing controller 122. The first timing controller 121 and the first source driver 141 are connected by at least one pair of P2P transmission lines 15, and the second timing controller 122 and the second source driver 142 are connected by at least one pair of P2P transmission lines 15.
The system chip 13 is connected to the first timing controller 121 through 8 pairs of VBO screen lines 16, and the system chip 13 is connected to the second timing controller 122 through 8 pairs of VBO screen lines 16. The VBO screen line 16 only supports 2 partitions or 4 partitions, that is, the image data to be displayed is divided into sub-image data corresponding to two or four display partitions.
When the display device 100 is in the second display mode, the system chip 13 receives the second image data with a frequency of 120Hz and a resolution of 3840 × 2160 and splits the second image data into two second sub-image data with different frequencies of 120Hz, and outputs one second sub-image data with a frequency of 120Hz to the first timing controller 121 in the second working state, and outputs the other second sub-image data with a frequency of 120Hz to the second timing controller 122 in the second working state; the first timing controller 121 converts the second sub-image data with a frequency of 120Hz by the first source driver 141 and outputs the converted data to a plurality of sub-pixels of the first display area 11a of the display panel, the second timing controller 122 converts the second sub-image data with another frequency of 120Hz by the second source driver 142 and outputs a plurality of sub-pixels of the second display area 11b of the display panel, the plurality of sub-pixels of the first display area 11a of the display panel display one second sub-image data at 120Hz, and the plurality of sub-pixels of the second display area 11b of the display panel display another second sub-image data at 120Hz, so that the display panel 11 displays a second image corresponding to the second sub-image data at 120 Hz.
The system chip 13 receives first image data with a frequency of 60Hz and a resolution of 3840 × 2160, the system chip 13 sends a switching instruction to the first timing controller 121 and the second timing controller 122 through an I2C bus, the first timing controller 121 in the second working state and the second timing controller 122 in the second working state are both switched to the first working state, and the system chip 13 transmits the first image data with a frequency of 60Hz and a resolution of 3840 × 2160 to the first timing controller 121 in the first working state and the second timing controller 122 in the first working state through 16 pairs of VBO screen lines 16; the first timing controller 121 in the first operating state outputs the 1 st to 1920 th columns of data in the first image data having the frequency of 60Hz and the resolution of 3840 × 2160 to the first display area 11a of the display panel through the first source driver 141, and discards the 1921 st to 3840 th columns of data in the first image data, and the second timing controller 122 in the first operating state outputs the 1921 st to 3840 th columns of data in the first image data having the resolution of 3840 × 2160 to the second display area 11b of the display panel 11 through the second source driver 142, and discards the 1 st to 1920 th columns of data in the first image data, and the plurality of subpixels in the first display area 11a display the 1 st to 1920 th columns of data at 60Hz, and the plurality of subpixels in the second display area 11b display the 1921 st to 3840 th columns of data at 60Hz, so that the display panel 11 displays the first image data at 60Hz.
The above description of the embodiments is only for assisting understanding of the technical solutions and the core ideas thereof; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display device is characterized by having a first display mode and a second display mode, and comprising N time schedule controllers and a display panel electrically connected with the N time schedule controllers, wherein the display panel is provided with N display areas, one display area comprises a plurality of sub-pixels, and N is an integer greater than or equal to 2;
when the display device is in a first display mode, the N time schedule controllers in a first working state all receive the same first image data with a first frequency and respectively output one corresponding first sub-image data in the N first sub-image data with the first frequency which are different from each other to the display panel, the N first sub-image data which are different from each other form the first image data, the plurality of sub-pixels in each display area in the N display areas receive one corresponding first sub-image data in the N first sub-image data, and the display panel displays the first image corresponding to the first image data at the first frequency;
when the display device is in a second display mode, the N time schedule controllers in the second working state respectively receive corresponding second sub-image data in N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form second image data, the plurality of sub-pixels in each of the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image corresponding to the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is larger than the first frequency.
2. The display device according to claim 1, wherein the display device further comprises a system chip,
when the display device is in a first display mode, the system chip outputs first image data with a first frequency to the N time sequence controllers;
when the display device is in a second display mode, the system chip splits the second image data with a second frequency into N second sub-image data which are different from each other and have the second frequency, and outputs the second sub-image data to the N timing controllers.
3. The display device according to claim 2, wherein when the system chip outputs a switching instruction to the N timing controllers, the N timing controllers switch from the second operation state to the first operation state according to the switching instruction.
4. The display device according to claim 2, further comprising a plurality of wires, one wire being provided between the system chip and each of the timing controllers;
when the system chip transmits a first level to the correspondingly connected time schedule controller through the conducting wire, the time schedule controller is in a first working state;
when the system chip transmits a second level to the correspondingly connected time schedule controller through the conducting wire, the time schedule controller is in a second working state, and the second level is different from the first level.
5. The display device according to claim 1, wherein when the display device is in a first display mode, the N timing controllers in a first operating state output display control signals to the display panel at a first frequency;
when the display device is in a second display mode, the N time sequence controllers in a second working state output the display control signals to the display panel at a second frequency.
6. The display device according to claim 1, wherein the display panel comprises at least two source drivers electrically connected to the N timing controllers;
when the display device is in a first display mode, the N time schedule controllers in a first working state transmit N first sub-image data which are different from each other and have the first frequency to the display panel through at least two source drivers;
when the display device is in a second display mode, the N timing controllers in a second working state transmit N second sub-image data which are different from each other and have a second frequency to the display panel through at least two source drivers.
7. The display device according to claim 6, wherein the display device further comprises a plurality of pairs of point-to-point transmission lines, and N of the timing controllers are connected to at least two of the source drivers through the point-to-point transmission lines.
8. The display device according to claim 2, wherein the display device further comprises a VBO screen line, and the system on chip is connected to the N timing controllers through the VBO screen line.
9. A display method of a display device, wherein the display device has a first display mode and a second display mode, the display device comprises N timing controllers and a display panel electrically connected with the N timing controllers, the display panel has N display areas, one display area comprises a plurality of sub-pixels, N is an integer greater than or equal to 2, the method comprises:
when the display device is in a first display mode, the N time schedule controllers in a first working state all receive the same first image data with a first frequency and respectively output one corresponding first sub-image data of the N first sub-image data with the first frequency, the N first sub-image data with the first frequency are different from each other to form the first image data, the plurality of sub-pixels of each display area in the N display areas receive one corresponding first sub-image data of the N first sub-image data, and the display panel displays a first image corresponding to the first image data at the first frequency;
when the display device is in a second display mode, the N timing controllers in the second working state respectively receive corresponding second sub-image data in N second sub-image data which are different from each other and have a second frequency and respectively output the corresponding second sub-image data to the display panel, the N second sub-image data which are different from each other form second image data, the plurality of sub-pixels in each of the N display areas receive corresponding second sub-image data in the N second sub-image data, the display panel displays a second image corresponding to the second image data at the second frequency, the resolution of the second image is the same as that of the first image, and the second frequency is greater than the first frequency.
10. The display method of the display device according to claim 9, wherein the display device further includes a system chip, the method further comprising:
when the display device is in a first display mode, the system chip outputs first image data with a first frequency to the N time sequence controllers;
when the display device is in a second display mode, the system chip splits the second image data with a second frequency into N second sub-image data which are different from each other and have the second frequency, and outputs the second sub-image data to the N timing controllers.
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| CN111613186A (en) * | 2020-06-22 | 2020-09-01 | 京东方科技集团股份有限公司 | Display system and driving method thereof |
| CN113380191A (en) * | 2021-06-08 | 2021-09-10 | 惠州华星光电显示有限公司 | Display panel driving device and display device |
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