IP Library › Granted Patent US 12,254,815
Granted Patent B2
US 12,254,815 · App. 18/500,374 · Granted Mar 18, 2025

Method for reducing color edge phenomenon of display panel

Inventors: Chen-Wei Lin (Taipei, TW); Chin-An Tseng (Taipei, TW); Yung-Ming Huang (Taipei, TW)
Assignee: ASUSTEK COMPUTER INC.
G09G3/2096G09G2300/0452G09G2300/0465G09G2320/0242G09G2320/0626
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,254,815
App. No.
18/500,374
Granted
Mar 18, 2025
Kind
B2
Abstract

A method for reducing a color edge phenomenon of a display panel is provided. The method is applicable to a display panel including a plurality of pixel units. The method includes: performing pixel adjustment on the pixel units at edges of the display panel. Each pixel unit includes at least three sub-pixels: a first sub-pixel, a second sub-pixel, and a third sub-pixel. By adjusting positions, areas, or brightness of the sub-pixels, the color edge phenomenon of the display panel is effectively reduced or avoided.

Claims (21)

1. A method for reducing a color edge phenomenon of a display panel, applicable to a display panel comprising a plurality of pixel units, and the method comprising:

performing pixel adjustment on the pixel units at edges of the display panel, wherein each pixel unit comprises at least three sub-pixels: a first sub-pixel, a second sub-pixel, and a third sub-pixel, to adjust positions, areas, or brightness of the sub-pixels;

wherein pixel adjustment on the pixel units at edges of the display panel comprises eliminating a red edge generated by a first edge of the display panel, a green edge generated by a second edge of the display panel, a yellow edge generated by a third edge of the display panel, and a blue edge generated by a fourth edge of the display panel by reducing the brightness of the sub-pixels at the edges of the display panel; and

wherein the sub-pixels with the reduced brightness comprise:

the first sub-pixel at the first edge of the display panel and the third sub-pixel at the second edge of the display panel for horizontal compensation of the brightness; and

the first sub-pixel and the third sub-pixel at the third edge of the display panel and the second sub-pixel at the fourth edge of the display panel for vertical compensation of the brightness.

2. The method for reducing a color edge phenomenon of a display panel according to claim 1 , wherein the step of adjusting the positions of the sub-pixels further comprises:

adjusting the sub-pixels of the display panel to be alternately arranged, so that the sub-pixels at the edges are arranged uniformly to present an ordered alternate arrangement of the first sub-pixel, the second sub-pixel, and the third sub-pixel.

3. The method for reducing a color edge phenomenon of a display panel according to claim 2 , wherein a brightness ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel is 1:1:1.

4. The method for reducing a color edge phenomenon of a display panel according to claim 2 , wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.

5. The method for reducing a color edge phenomenon of a display panel according to claim 1 , wherein the step of adjusting the areas of the sub-pixels further comprises:

reducing the areas of the sub-pixels at the edges of the display panel, so that the sub-pixels at the edges have smaller areas.

6. The method for reducing a color edge phenomenon of a display panel according to claim 5 , wherein the areas of the sub-pixels are reduced by at least 10%.

7. The method for reducing a color edge phenomenon of a display panel according to claim 5 , wherein the sub-pixels with the reduced areas comprise at least the first sub-pixel at a first edge of the display panel and the third sub-pixel at a second edge of the display panel.

8. The method for reducing a color edge phenomenon of a display panel according to claim 7 , wherein the sub-pixels with the reduced areas further comprise the first sub-pixel and the third sub-pixel at a third edge of the display panel, and the second sub-pixel at a fourth edge of the display panel.

9. The method for reducing a color edge phenomenon of a display panel according to claim 8 , wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.

10. The method for reducing a color edge phenomenon of a display panel according to claim 8 , wherein the first edge is an upper edge of the display panels, the second edge is a lower edge of the display panels, the third edge is a left edge of the display panel, and the fourth edge is a right edge of the display panel.

11. The method for reducing a color edge phenomenon of a display panel according to claim 1 , wherein the brightness of the sub-pixels is reduced by at least 10%.

12. The method for reducing a color edge phenomenon of a display panel according to claim 1 , wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.

13. The method for reducing a color edge phenomenon of a display panel according to claim 1 , wherein the first edge is an upper edge of the display panels, the second edge is a lower edge of the display panels, the third edge is a left edge of the display panel, and the fourth edge is a right edge of the display panel.

14. The method for reducing a color edge phenomenon of a display panel according to claim 1 , wherein in the step of adjusting the brightness of the sub-pixels, a processing device, a timing controller, or a scaler controller is used to reduce the brightness of the sub-pixels at the edges of the display panel.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2023
From: LIN, CHEN-WEI; TSENG, CHIN-AN; HUANG, YUNG-MING
To: ASUSTEK COMPUTER INC.
Reel/Frame 065434/0873 →
Priority Claims (1)
TW 112103727 · Feb 2, 2023 · national
Continuity (1)
Related Publication 20240265845A1 · Aug 8, 2024
References Cited (16)
US 10283035B2 · Kobayashi · 2019 [cited by examiner]
US 20140184668A1 · Im · 2014 [cited by examiner]
US 20150356903A1 · Lee · 2015 [cited by examiner]
US 20200110200A1 · Zang · 2020 [cited by examiner]
US 20200302865A1 · Lu · 2020 [cited by examiner]
US 20210049980A1 · Bae · 2021 [cited by examiner]
US 20210225245A1 · Chen · 2021 [cited by examiner]
CN 106530994A · 2017 [cited by applicant]
CN 106530994B · 2018 [cited by applicant]
CN 111383569A · 2020 [cited by applicant]
CN 110364546B · 2021 [cited by applicant]
CN 214012943U · 2021 [cited by applicant]
CN 114023242A · 2022 [cited by applicant]
CN 114613309A · 2022 [cited by applicant]
CN 115084186A · 2022 [cited by applicant]
TW 202137186A · 2021 [cited by applicant]