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CN-122024667-A - Display device

CN122024667ACN 122024667 ACN122024667 ACN 122024667ACN-122024667-A

Abstract

The embodiment of the application provides a display device, which comprises a display panel, wherein a display area of the display panel is divided into a first sub-display area, a second sub-display area, a third sub-display area and a fourth sub-display area along a row direction, a non-display area of the display panel is provided with four groups of grid driving circuits, the four groups of grid driving circuits are electrically connected with pixels in the first sub-display area to the fourth sub-display area through a plurality of grid lines, the first grid line and the fourth grid line are disconnected between the second sub-display area and the third sub-display area, the second grid line and the third grid line are disconnected, the width of a data line in the first sub-display area at the position crossing the second grid line is larger than the width of a data line in the fourth sub-display area at the position crossing the third grid line, and the width of the data line in the fourth sub-display area is larger than the width of the data line at the position crossing the fourth grid line, so that RC delay difference is compensated, and display uniformity is improved.

Inventors

  • LI HAO

Assignees

  • 广州华星光电半导体显示技术有限公司

Dates

Publication Date
20260512
Application Date
20260330
Priority Date
20260121

Claims (10)

  1. 1. The display device is characterized by comprising a display panel, wherein the display panel comprises a display area and non-display areas positioned at two sides of the display area, the display area is provided with a plurality of pixels arranged in an array mode and a plurality of data lines extending along a column direction, the display area is divided into a first sub-display area, a second sub-display area, a third sub-display area and a fourth sub-display area along the row direction, the non-display area is provided with a first grid driving circuit and a second grid driving circuit which are positioned at one side of the first sub-display area, a third grid driving circuit and a fourth grid driving circuit which are positioned at one side of the fourth sub-display area, the first grid driving circuit is connected with a plurality of rows of pixels in the first sub-display area through a plurality of first grid lines, the second grid driving circuit is connected with a plurality of pixels in the second sub-display area through a plurality of second grid lines, the third grid driving circuit is connected with a plurality of pixels in the third sub-display area, the third grid driving circuit is connected with a plurality of rows of pixels in the fourth sub-display area through a plurality of third grid lines, the first grid driving circuit is disconnected with the fourth grid lines in the fourth sub-display area, and the fourth grid driving circuit is disconnected with the fourth grid lines in the plurality of rows of the first grid lines and the fourth grid driving circuits; The width of the data line in the first sub-display area at the position crossing the second gate line is greater than the width of the data line in the first sub-display area at the position crossing the first gate line, and the width of the data line in the fourth sub-display area at the position crossing the third gate line is greater than the width of the data line in the fourth sub-display area at the position crossing the fourth gate line.
  2. 2. The display device according to claim 1, wherein the data line in the first sub-display area is expanded outwardly in a row direction at a position crossing the second gate line to form a first electrode, the first electrode overlaps the second gate line to form a first capacitance, a capacitance value of the first capacitance is larger than a capacitance value of the data line in the first sub-display area crossing the first gate line, the data line in the fourth sub-display area is expanded outwardly in a row direction at a position crossing the third gate line to form a fourth electrode, the fourth electrode overlaps the third gate line to form a fourth capacitance, and a capacitance value of the fourth capacitance is larger than a capacitance value of the data line in the fourth sub-display area crossing the fourth gate line.
  3. 3. The display device according to claim 1, wherein a disconnected position of the first gate line and the fourth gate line electrically connected to the i-th row of pixels is a first position, a disconnected position of the first gate line and the fourth gate line electrically connected to the i+1-th row of pixels is a second position, and the first position and the second position are staggered in a column direction, wherein i is a positive integer.
  4. 4. A display device according to claim 3, wherein the first location is on a first side of a j-th column of pixels and the second location is on a second side of the j-th column of pixels, the first side and the second side being on both sides of the j-th column of pixels in the row direction, wherein j is a positive integer.
  5. 5. A display device according to claim 3, wherein the second gate line and the third gate line electrically connected to the i-th row of pixels are disconnected at the first position, and the second gate line and the third gate line electrically connected to the i+1-th row of pixels are disconnected at the second position.
  6. 6. The display device according to claim 1, wherein a disconnected position of the second gate line and the third gate line electrically connected to the i-th row of pixels is a third position, a disconnected position of the second gate line and the third gate line electrically connected to the i+1-th row of pixels is a fourth position, and the third position and the fourth position are staggered in a column direction, wherein i is a positive integer.
  7. 7. The display device according to claim 1, wherein the first gate driving circuit and the second gate driving circuit are arranged side by side in a row direction, the first gate driving circuit is located on a side of the second gate driving circuit away from the display area, the third gate driving circuit and the fourth gate driving circuit are arranged side by side in the row direction, and the fourth gate driving circuit is located on a side of the third gate driving circuit away from the display area; the wiring line width of the first grid line in the non-display area is larger than that of the second grid line in the non-display area, and the wiring line width of the fourth grid line in the non-display area is larger than that of the third grid line in the non-display area.
  8. 8. The display device according to claim 1, wherein the first gate line passes through the first and second sub-display regions and is electrically connected to a gate of a pixel only in the first sub-display region, the second gate line passes through the first and second sub-display regions and is electrically connected to a gate of a pixel only in the second sub-display region, the third gate line passes through the third and fourth sub-display regions and is electrically connected to a gate of a pixel only in the third sub-display region, and the fourth gate line passes through the third and fourth sub-display regions and is electrically connected to a gate of a pixel only in the fourth sub-display region.
  9. 9. The display device according to claim 1, wherein a width of the data line in the second sub-display area at a position crossing the first gate line, and a width of the data line in the second sub-display area at a position crossing the second gate line are each smaller than a width of the data line in the first sub-display area at a position crossing the second gate line.
  10. 10. The display device according to claim 1, wherein a width of the data line in the third sub-display area at a position crossing the third gate line, and a width of the data line in the third sub-display area at a position crossing the fourth gate line are each smaller than a width of the data line in the fourth sub-display area at a position crossing the third gate line.

Description

Display device The present application claims priority from chinese patent application No. 202610091515.X filed on 21, 01, 2026, which is incorporated herein by reference. Technical Field The application relates to the technical field of display, in particular to a display device. Background In conventional display panels, a single gate driving method is generally adopted, that is, the entire display area is driven by gate driving circuits located at one side or both sides of the display area, and all pixel rows in the display area are refreshed according to a uniform scanning timing. When the display panel needs to be refreshed locally or different areas need to be refreshed at different frequencies, the whole display area still needs to be scanned in the driving mode, so that the power consumption is high. In order to reduce power consumption, the industry proposes a technical scheme of partition driving, namely, a display area is divided into a plurality of sub-display areas, and each sub-display area is independently driven by a plurality of groups of grid driving circuits. However, in the implementation of the partition driving, there is a difference in Resistance Capacitance (RC) delay of different gate lines due to a difference in gate line routing length between different gate driving circuits and respective corresponding sub display regions. Specifically, the distance between the gate driving circuit located at the outer side and the display area is longer, the wiring length of the gate line is longer, the resistance value is larger, the distance between the gate driving circuit located at the inner side and the display area is shorter, and the wiring length of the gate line is shorter, and the resistance value is smaller. The difference of the RC delay can cause time sequence deviation of scanning signals received by pixels of adjacent sub-display areas, so that the problem of uneven display brightness or inconsistent display effect between the adjacent sub-display areas is caused, and the display uniformity of the display panel is affected. Therefore, a new solution is needed to solve the above-mentioned problems. Disclosure of Invention The application aims to provide a display device, which aims to solve the technical problem that display is not uniform between adjacent sub-display areas caused by RC delay differences of different gate lines in a display panel driven by partitions in the prior art. The application provides a display device, which comprises a display panel, wherein the display panel comprises a display area and a non-display area positioned at two sides of the display area, the display area is provided with a plurality of pixels arranged in an array manner and a plurality of data lines extending along a column direction, the display area is divided into a first sub-display area, a second sub-display area, a third sub-display area and a fourth sub-display area along a row direction, the non-display area is provided with a first grid driving circuit and a second grid driving circuit which are positioned at one side of the first sub-display area, a third grid driving circuit and a fourth grid driving circuit which are positioned at one side of the fourth sub-display area, the first grid driving circuit is connected with a plurality of rows of pixels in the first sub-display area through a plurality of first grid lines, the second grid driving circuit is connected with a plurality of pixels in the second sub-display area through a plurality of second grid lines, the third grid driving circuit is connected with a plurality of pixels in the third sub-display area through a plurality of third grid lines, the third grid driving circuit is connected with a plurality of lines in the fourth grid lines, the first grid driving circuit is connected with the fourth grid lines in the cross-display area, the first grid lines and the fourth grid lines are disconnected with the fourth grid lines in the plurality of lines in the positions in the first sub-display area, the first grid lines and the fourth grid lines are connected with the fourth grid lines in the plurality of lines in the rows in the first grid lines and the rows, the width of the data line in the fourth sub-display area at a position crossing the third gate line is greater than the width of the data line in the fourth sub-display area at a position crossing the fourth gate line. In the display device, the data line in the first sub-display area is expanded along the row direction at the position crossing the second gate line to form a first electrode, the first electrode is overlapped with the second gate line to form a first capacitor, the capacitance value of the first capacitor is larger than that of the data line in the first sub-display area crossing the first gate line, the data line in the fourth sub-display area is expanded along the row direction at the position crossing the third gate line to form a fourth electrode, the