CN-121260121-B - Display device and device control method

CN121260121BCN 121260121 BCN121260121 BCN 121260121BCN-121260121-B

Abstract

The embodiment of the disclosure relates to a display device and a device control method, wherein the display device comprises a display screen configured to display image frames. The controller is configured to acquire pixel data corresponding to an ith row of pixels in the display screen in the process of switching a first image frame currently displayed into a second image frame, acquire an update enabling signal corresponding to the ith row of pixels in the display screen, indicate whether the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same or not, generate a GOA enabling signal corresponding to the ith row of pixels and a polarity value based on the update enabling signal, and configure driving voltages applied to the ith row of pixels based on the polarity value corresponding to the ith row of pixels if the GOA enabling signal indicates that the ith row of pixels are configured.

Inventors

LIU ZHIJUN
LI XUHANG
JIANG JIANDE
YU HENG

Assignees

青岛信芯微电子科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251203

Claims (9)

1. A display device, characterized by comprising: A display screen configured to display an image frame; A controller configured to: Acquiring pixel data corresponding to an ith row of pixels in a display screen in a second image frame in the process that the display screen switches a first image frame to be displayed currently into the second image frame, wherein i is a positive integer not greater than N, and N is a positive integer used for representing the total number of rows of pixels in the display screen; Acquiring an update enabling signal corresponding to the ith row of pixels, wherein the update enabling signal indicates whether pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same or not; Generating a target GOA enabling signal if the updating enabling signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are different, wherein the target GOA enabling signal indicates that the ith row of pixels in the display screen are configured; If the update enable signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same, generating the target GOA enable signal under the condition that the positive and negative polarity accumulated difference is not smaller than a first threshold value or the positive and negative polarity accumulated difference is smaller than the first threshold value but not smaller than a second threshold value and the ith row of pixels are in a polarity balance mode, wherein the polarity balance mode is used for controlling positive and negative polarity driving voltages applied to the ith row of pixels to tend to be balanced; the method comprises the steps of generating a polarity value corresponding to an ith row of pixels based on the positive and negative polarity accumulated difference, configuring a polarity direction of a driving voltage applied to the ith row of pixels based on the polarity value corresponding to the ith row of pixels, and indicating an accumulated time difference between a positive polarity driving voltage and a negative polarity driving voltage applied to the ith row of pixels.
2. The display device of claim 1, wherein the controller is specifically configured to: generating a GOA enable signal based on the update enable signal; And generating a polarity value corresponding to the pixel of the ith row based on the GOA enabling signal.
3. The display device of claim 2, wherein the controller is specifically configured to: If the update enable signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same, when the positive and negative polarity accumulated difference is smaller than the first threshold but not smaller than the second threshold and the ith row of pixels are not in a polarity balance mode, or when the positive and negative polarity accumulated difference is smaller than the second threshold, the GOA enable signal is generated based on a history update record and a current update record, wherein the history update record comprises update enable signals of each row of pixels when the display screen displays a history image frame before the second image frame, and the current update record comprises update enable signals of each row of pixels updated when the display screen displays the second image frame in a switching mode.
4. A display device according to claim 3, characterized in that the controller is specifically configured to: determining indication information corresponding to the ith row of pixels based on the historical update record and the current update record, wherein the indication information indicates whether the ith row of pixels and an adjacent area are synchronously configured; If the indication information indicates that the ith row of pixels and the adjacent area are synchronously configured, taking the GOA enabling signals of the adjacent area as GOA enabling signals corresponding to the ith row of pixels; and if the indication information indicates that the ith row of pixels and the adjacent area are not synchronously configured, inverting the GOA enabling signals of the adjacent area to serve as GOA enabling signals corresponding to the ith row of pixels.
5. The display device of claim 2, wherein the controller is specifically configured to: And if the GOA enabling signal indicates that the configuration of the ith row of pixels in the display screen is forbidden, setting the polarity value corresponding to the ith row of pixels as the polarity value corresponding to the pixel of the previous row of the ith row of pixels.
6. The display device of claim 5, wherein the controller is specifically configured to: If the GOA enable signal indicates that the ith row of pixels are configured, setting a polarity value corresponding to the ith row of pixels to be a first polarity value when the positive and negative polarity accumulated difference is not smaller than a first threshold value or when the positive and negative polarity accumulated difference is smaller than the first threshold value but not smaller than a second threshold value and the ith row of pixels are in a polarity balance mode, wherein the polarity direction indicated by the first polarity value is opposite to the polarity direction indicated by the positive and negative polarity accumulated difference; If the GOA enable signal indicates that the ith row of pixels are configured, when the positive and negative polarity accumulated difference is smaller than the first threshold but not smaller than the second threshold and the ith row of pixels are not in a polarity balance mode, or when the positive and negative polarity accumulated difference is smaller than the second threshold, a polarity value corresponding to the ith row of pixels is generated based on a positive polarity row number and a negative polarity row number corresponding to the first image frame, wherein the positive polarity row number indicates a row number of positive polarity driving voltages applied when the display screen displays the first image frame, and the negative polarity row number indicates a row number of negative polarity driving voltages applied when the display screen displays the first image frame.
7. The display device of claim 6, wherein the controller is specifically configured to: if the difference value between the positive polarity line number and the negative polarity line number is smaller than a third threshold value, setting a polarity value corresponding to the ith row of pixels as a second polarity value, wherein the polarity direction indicated by the second polarity value is opposite to the polarity direction of the driving voltage applied to the ith row of pixels when the display screen displays the first image frame; If the difference value between the positive polarity line number and the negative polarity line number is not smaller than the third threshold value, setting a polarity value corresponding to the ith row of pixels to a negative polarity value when the positive polarity line number is not smaller than the negative polarity line number; If the difference value between the positive polarity line number and the negative polarity line number is not smaller than the threshold value, setting the polarity value corresponding to the ith row of pixels as a positive polarity value when the positive polarity line number is smaller than the negative polarity line number.
8. The display device according to any one of claims 1 to 7, wherein the controller is specifically configured to: Comparing the pixel data of the ith row of pixels corresponding to the first image frame and the second image frame; generating a first update enabling signal if any pixel in the ith row of pixels is different in corresponding pixel data in the first image frame and the second image frame; And if the pixel data corresponding to the same pixel in the ith row of pixels in the first image frame and the second image frame are the same, generating a second updating enabling signal.
9. A device control method, applied to a display device, comprising: in the process that a display screen switches a first image frame which is currently displayed into a second image frame, acquiring pixel data corresponding to an ith row of pixels in the display screen in the second image frame, wherein i is a positive integer which is not more than N, and N is a positive integer which is used for representing the total number of the pixels in the display screen; Acquiring an update enabling signal corresponding to the ith row of pixels, wherein the update enabling signal indicates whether pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same or not; Generating a target GOA enabling signal if the updating enabling signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are different, wherein the target GOA enabling signal indicates that the ith row of pixels in the display screen are configured; If the update enable signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same, generating the target GOA enable signal under the condition that the positive and negative polarity accumulated difference is not smaller than a first threshold value or the positive and negative polarity accumulated difference is smaller than the first threshold value but not smaller than a second threshold value and the ith row of pixels are in a polarity balance mode, wherein the polarity balance mode is used for controlling positive and negative polarity driving voltages applied to the ith row of pixels to tend to be balanced; the method comprises the steps of generating a polarity value corresponding to an ith row of pixels based on the positive and negative polarity accumulated difference, configuring a polarity direction of a driving voltage applied to the ith row of pixels based on the polarity value corresponding to the ith row of pixels, and indicating an accumulated time difference between a positive polarity driving voltage and a negative polarity driving voltage applied to the ith row of pixels.

Description

Display device and device control method Technical Field The embodiment of the application relates to a terminal technology. And more particularly, to a display apparatus and an apparatus control method. Background The liquid crystal display screen controls the arrangement of liquid crystal molecules through an electric field, so that the transmittance of light is changed to realize image display. If the liquid crystal material is in a single-direction electric field for a long time, polarization phenomenon can occur, so that performance is reduced and even the liquid crystal material is permanently damaged. In order to avoid the problem, a polarity inversion technology is adopted for regulation, but the regulation mode of the related technology has insufficient flexibility, and the power consumption of the liquid crystal display screen is higher. Disclosure of Invention In order to solve the above technical problems or at least partially solve the above technical problems, an embodiment of the present application provides a display device and a device control method. In a first aspect, an embodiment of the present application provides a display apparatus, including: A display screen configured to display an image frame; A controller configured to: In the process that a display screen switches a first image frame which is currently displayed into a second image frame, acquiring pixel data corresponding to an ith row of pixels in the display screen in the second image frame, wherein i is a positive integer which is not more than N, and N is a positive integer which is used for representing the total number of rows of pixels in the display screen; Acquiring an update enabling signal corresponding to an ith row of pixels, wherein the update enabling signal indicates whether pixel data corresponding to the ith row of pixels in a second image frame and a first image frame are the same or not; Generating a GOA enabling signal and a polarity value corresponding to the ith row of pixels based on the updating enabling signal, wherein the polarity value indicates the polarity direction of a driving voltage applied to the ith row of pixels when the second image frame is displayed, and the GOA enabling signal indicates whether the ith row of pixels in the display screen are configured or not; If the GOA enable signal indicates that the ith row of pixels are configured, a driving voltage applied to the ith row of pixels is configured based on a polarity value corresponding to the ith row of pixels. In the embodiment of the application, considering that when the display screen displays the first image frame and when the display screen displays the second image frame, an unchanged area possibly exists in the display screen, when the display screen switches the first image frame to display the second image frame, the pixels in the unchanged area can be not required to be updated, so that in the process of controlling the display screen to switch the display image frame, the controller generates an update enabling signal by comparing pixel data changes line by line, only performs polarity configuration on the updated row pixels, skips driving operation on the unchanged area, reduces redundant driving operation on the unchanged area, reduces the redundant dynamic power consumption of the display device, realizes accurate driving control adaptive to image content, reduces the dynamic energy consumption of the display screen while ensuring the picture quality, and improves the flexibility of controlling the display screen. In some embodiments of the application, the controller is specifically configured to: generating a GOA enable signal based on the update enable signal; Based on the GOA enable signal, a polarity value corresponding to the i-th row of pixels is generated. In some embodiments of the application, the controller is specifically configured to: if the updating enabling signal indicates that the pixel data of the ith row of pixels in the second image frame is different from the corresponding pixel data in the first image frame, generating a target GOA enabling signal, wherein the target GOA enabling signal indicates that the ith row of pixels in the display screen are configured; if the update enable signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same, generating a GOA enable signal based on a positive and negative polarity accumulated difference, wherein the positive and negative polarity accumulated difference indicates an accumulated duration time difference of a positive polarity driving voltage and a negative polarity driving voltage applied to the ith row of pixels. In some embodiments of the application, the controller is specifically configured to: If the update enabling signal indicates that the pixel data corresponding to the ith row of pixels in the second image frame and the first image frame are the same, generatin