Method, apparatus, and storage medium for compensating for defective pixel of display

Patent metadata

Field	Value
Publication number	US-9858886-B2
Application number	US-201414324024-A
Country	US
Kind code	B2
Filing date	Jul 3, 2014
Priority date	Dec 3, 2013
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

Provided is a method for compensating for a defective pixel of a display. The method includes identifying at least one of a plurality of pixels of a display as a defective pixel and compensating for a function of the defective pixel by using at least one pixel from a first pixel group located in a first partial region corresponding to the defective pixel and a second pixel group located in a second partial region located adjacent to the first partial region among a plurality of partial regions, each partial region comprising some adjacent pixels among the plurality of pixels.

First claim

What is claimed is:

1. A method comprising:
identifying, as a defective pixel, at least one of a plurality of pixels of a display; and
compensating a color of the defective pixel using at least one pixel of a second pixel group adjacent to a first pixel group including the defective pixel from among a plurality of pixel groups of the display,
wherein the compensating comprises:
turning off both of a red pixel and a blue pixel in the first pixel group, if the defective pixel is one of the red pixel or the blue pixel,
forming an arrangement comprising at least one pixel in the first pixel group, and the at least one pixel in the second pixel group, and
operating the arrangement as a pixel group to compensate the color of the defective pixel.

2. The method of claim 1 , wherein the identifying comprises:
receiving information about at least one of a quantity, coordinates, a position, an identifier, or a color of the defective pixel.

3. The method of claim 1 , wherein the identifying comprises:
receiving image information obtained by capturing a display state of the display; and
identifying information indicating the defective pixel using the image information.

4. The method of claim 1 , wherein the identifying comprises:
sensing a position of the defective pixel via a sensor operatively coupled with the display.

5. The method of claim 1 , wherein each of the plurality of pixels corresponds to one of a plurality of colors comprising red, green, blue, or white.

6. The method of claim 1 , wherein each of the plurality of pixels comprises a plurality of pixels expressing a same color selected from among at least one color comprising red, green, blue, or white.

7. The method of claim 1 , wherein the arrangement includes a pixel corresponding to a third color located in the first pixel group, and pixels corresponding to a first color, a second color, and the third color, which are located in the second pixel group.

8. An electronic device comprising:
a display panel driven by each of a plurality of control signals corresponding to a plurality of pixels;
a processor configured to:
identify, as a defective pixel, at least one of the plurality of pixels; and
compensate a color of the defective pixel using at least one pixel of a second pixel group adjacent to a first pixel group including the defective pixel from among a plurality of pixel groups of the display panel,

wherein the processor is further configured to:
turn off both a red pixel and a blue pixel in the first pixel group, if the defective pixel is one of the red pixel or the blue pixel,
form an arrangement comprising at least one pixel in the first pixel group, and the at least one pixel in the second pixel group, and
operate the arrangement as a pixel group to compensate the color of the defective pixel.

9. The electronic device of claim 8 , wherein the processor is configured to:
receive at least one of a quantity, coordinates, a position, an identifier, and a color of the defective pixel.

10. The electronic device of claim 8 , further comprising a storage module configured to store information about the defective pixel of the display panel,
wherein the processor is configured to receive the information from the storage module.

11. The electronic device of claim 8 , wherein the processor is configured to:
detect a position of the defective pixel via a sensor operatively coupled with the electronic device.

12. The electronic device of claim 8 , wherein the processor is configured to:
control at least one of a second control signal corresponding to at least one pixel of the first pixel group, and a third control signal corresponding to the second pixel group, based at least in part on a first control signal corresponding to the defective pixel.

13. The electronic device of claim 8 , wherein each of the pixel groups is configured by an arrangement of some adjacent pixels in at least one of rhombic-type, bar-type, triangular-type, L6 W-type, Red/Green/Blue (RGB) stripe-type, square-type, rectangular-type, pentagonal-type, or hexagonal-type structures.

14. A non-transitory storage medium configured to store instructions, wherein the instructions are configured for at least one processor to perform at least one operation when being executed by the at least one processor, the at least one operation comprising:
identifying, as a defective pixel, at least one of a plurality of pixels of a display; and
compensating a color of the defective pixel using at least one pixel of a second pixel group adjacent to a first pixel group including the defective pixel from among a plurality of pixel groups of the display,
wherein the compensating comprises:
turning off both a red pixel and a blue pixel in the first pixel group, if the defective pixel is one of the red pixel or the blue pixel,
forming an arrangement comprising at least one pixel in the first pixel group, and the at least one pixel in the second pixel group, and
operating the arrangement as a pixel group to compensate the color of the defective pixel.

15. The non-transitory storage medium of claim 14 , wherein the identifying comprises:
receiving information about at least one of a quantity, coordinates, a position, an identifier, or a color of the defective pixel.

16. The non-transitory storage medium of claim 14 , wherein the identifying comprises:
receiving image information obtained by capturing a display state of the display; and
identifying information indicating the defective pixel using the image information.

17. The non-transitory storage medium of claim 14 , wherein the identifying comprises:
Sensing a position of the defective pixel via a sensor operatively coupled with the display.

18. The non-transitory storage medium of claim 14 , wherein the arrangement includes a pixel corresponding to a third color located in the first pixel group, and pixels corresponding to a first color, a second color, and the third color, which are located in the second pixel group.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Bae Jong-Kon
• Kim Soo-Hyung
• Lee Yong-Man
• Cho Sung-Dae
• Han Seok-Jin

Classifications

• G09G3/2003

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title

• G09G2330/08

  Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared · CPC title

• G09G5/00 Primary

  Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T) · CPC title

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G5/02

  characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} · CPC title