Graphene display, a driving method for a graphene display and a driving apparatus

Patent metadata

Field	Value
Publication number	US-10170034-B2
Application number	US-201615108297-A
Country	US
Kind code	B2
Filing date	Jun 12, 2016
Priority date	May 18, 2016
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

The present application discloses a graphene display, and a driving method and a driving apparatus for a graphene display, the driving apparatus for a graphene display includes obtaining the grayscale values of the three primary colors of the pixel to be input; determining the color and grayscale values of three dynamic sub-pixels according to the grayscale values of the three primary colors of the pixel and the correspondence relationship of the preset grayscale values of the three primary colors and the grayscale values of the five primary colors; applying the driving voltages to the three dynamic sub-pixels respectively corresponding to the color and grayscale values of three dynamic sub-pixels. By the method described above, the gamut of the display is increased, to increase the display performance of the display and decrease the power consumption of the display.

First claim

What is claimed is:

1. A graphene display wherein the graphene display comprising a display panel and a driving apparatus electrically connected to the display panel, the display panel comprising a plurality of pixels distributed in array type and each of the pixels is consisted of three dynamic sub-pixels;
wherein the driving apparatus comprising:
an obtaining module to obtaining grayscale values of three primary colors of each of the pixels to be input;
a determination module to determining adjusted grayscale values of the three dynamic sub-pixels of each of the pixels according to the obtained grayscale values of the three primary colors of each of the pixels and a preset correspondence relationship of the obtained grayscale values of the three primary colors and color blocks determined by five primary colors in color gamut;
a driving module to apply driving voltages to the three dynamic sub-pixels respectively corresponding to the adjusted grayscale values of the three dynamic sub-pixels of each of the pixels such that each of the pixels uses the three dynamic sub-pixels thereof to display the adjusted grayscale values of the five primary colors in the color gamut.

2. The graphene display according to claim 1 , wherein the three primary colors are red, green, blue and the five primary colors are red, green, blue, yellow, cyan.

3. The graphene display according to claim 2 , wherein the determination module is also configured to:
according to the obtained grayscale values of the three primary colors to determine a color block of a target color point of any pixel in the color gamut, wherein the color gamut includes five color blocks corresponding to the five primary colors; and
according to the color block of the target color point of the pixel in the color gamut, to determine the obtained grayscale values of the three dynamic sub-pixels of the pixel.

4. The graphene display according to claim 3 , wherein the determination module is further configured to:
by the obtained grayscale values Ri, Gi, Bi in red, green, and blue of the pixel to obtain a maximum value a=max (Ri, Gi, Bi) and a minimum value b=min (Ri, Gi, Bi) of the pixel after calculation;
if b=Gi or a=b, it can be determined that the target color point of the pixel in the color gamut falls into a WRB block;
if b=Ri and a≠Bi, it can be determined that the target color point of the pixel in the color gamut falls into a WGC block;
if b=Ri or a=Bi, it can be determined that the target color point of the pixel in the color gamut falls into a WCB block;
if b≠R 1 and a=G 1 , it can be determined that the target color point of the pixel in the color gamut falls into a WYG block; and
if b≠Ri and a≠Gi, it can be determined that the target color point of the pixel in the color gamut falls into a WRY block.

5. The graphene display according to claim 4 , wherein the determination module is further configured to:
when the target color point of the pixel in the color gamut falls into the WRB block, the adjusted grayscale values of the three dynamic sub-pixels of the pixel is determined to be Rgi=Ri, Ggi=Gi, Bgi=Bi;
when the target color point of the pixel in the color gamut falls into the WGC block, the adjusted grayscale values of the three dynamic sub-pixels of the pixel is determined to be Rgi=Ri, Ggi=Gi−Bi, Cgi=Bi;
when the target color point of the pixel in the color gamut falls into the WCB block, the adjusted grayscale values of the three dynamic sub-pixels of the pixel is determined to be Rgi=Ri, Cgi=Gi−Ri, Bgi=Bi;
when the target color point of the pixel in the color gamut falls into the WYG block, the adjusted grayscale values of the three dynamic sub-pixels of the pixel is determined to be Ygi=Ri, Ggi=Gi−Ri, Bgi=Bi;
when the target color point of the pixel in the color gamut falls into the WRY block, the adjusted grayscale values of the three dynamic sub-pixels of the pixel is determined to be Rgi=Ri−Gi, Ygi=Gi, Bgi=Bi;
wherein, Rgi, Ggi, Bgi, Ygi, Cgi respected grayscale values in red, green, blue, yellow, cyan as the five primary colors such that the pixel uses the three dynamic sub-pixels thereof to display the adjusted grayscale values of the five primary colors in the color gamut.

6. The graphene display according to claim 4 , wherein the driving apparatus further comprising a color gamut determination module to establish the five primary colors in the color gamut; and divided the color gamut into five color blocks of WRB, WGC, WCB, WYG and WRY.

7. A driving method for a graphene display, wherein each pixel of the graphene display being consisted of three dynamic sub-pixels, the driving method comprising;
obtaining grayscale values of three primary colors of each pixel to be input;
determining adjusted grayscale values of the three dynamic sub-pixels of each pixel according to the obtained grayscale values of the three primary colors of each pixel and a preset correspondence relationship of the obtained grayscale values of the three primary colors and color blocks determined by five primary colors in color gamut;
applying the driving voltages to the three dynamic sub-pixels respectively corresponding to the adjusted grayscale values of the three dynamic sub-pixels of each pixel such that each pixel uses the three dynamic sub-pixels thereof to display the adjusted grayscale values of the five primary colors in the color gamut.

8. The driving method according to claim 7 , wherein the three primary colors are red, green, blue and the five primary colors are red, green, blue, yellow, cyan.

9. The driving method according to claim 8 , wherein the determining adjusted grayscale values of the three dynamic sub-pixels of each pixel according to the obtained grayscale values of the three primary colors of each pixel and a preset correspondence relationship of the obtained grayscale values of the three primary colors and color blocks determined by five primary colors in color gamut, comprising:
according to the obtained grayscale values of the three primary colors to determine a color block of a target color point of any pixel in the color gamut, wherein the color gamut includes five color blocks corresponding to the five primary colors; and
according to the color block of the target color point of the pixel in the color gamut, to determine the obtained grayscale values of the three dynamic sub-pixels of the pixel.

10. The driving method according to claim 9 , wherein according to the color block of the target color point of the pixel in the color gamut, to determine the obtained grayscale values of the three dynamic sub-pixels of the pixel, comprising:
by the obtained grayscale values Ri, Gi, Bi in red, green, and blue to obtain a maximum value a=max (Ri, Gi, Bi) and a minimum value b=min (Ri, Gi, Bi) of the pixel after calculation;
if b=Gi or a=b, it can be determined that the target color point of the pixel in the color gamut falls into a WRB block;
if b=Ri and a≠Bi, it can be determined that the target color point of the pixel in the color gamut falls into a WGC block;
if b=Ri or a=Bi, it can be determined that the target color point of the pixel in the color gamut falls into a WCB block;
if b≠Ri and a=Gi, it can be determined that the target color point of the pixel in the color gamut into a WYG block; and
if b≠Ri and a≠Gi, it can be determined that the target color point of the pixel in the color gamut falls into a WRY block.

11. The driving method according to claim 10 , wherein according to the color block of the target color point of the pixel in the color gamut, to determine the adjusted grayscale values of the three dynamic sub-pixels of the pixel, comprising:
when the target color point of the pixel

Assignees

• Shenzhen China Star Optoelect
• Shenzhen China Star Optoelectronics Co Ltd

Inventors

• Fan Yong

Classifications

• G09G3/32 Primary

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• G09G2300/0465

  Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness · CPC title

• G09G3/36

  using liquid crystals · CPC title

• G09G2320/0666

  for control of colour parameters, e.g. colour temperature · CPC title

• H01L29/1606

  Electricity · mapped topic