Data display method and device

Patent metadata

Field	Value
Publication number	US-9330591-B2
Application number	US-97600710-A
Country	US
Kind code	B2
Filing date	Dec 22, 2010
Priority date	Dec 22, 2009
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A low power display and a method for display in a display device having an Active Matrix Organic Light Emitting Diodes AMOLED panel are provided. A display window that includes content to be displayed on the AMOLED panel is determined. Luminance values of pixels constituting the display window are grasped. The pixels having luminance values that are to be adjusted are determined in accordance with a distribution degree of pixels having luminance values that are larger than a reference luminance value. The luminance values of the determined pixels are changed to the reference luminance value, and the display window is displayed on the AMOLED panel with the changed luminance values.

First claim

What is claimed is:

1. A low power display method in a display device having an Active Matrix Organic Light Emitting Diodes (AMOLED) panel, the method comprising the steps of:
determining a display window including content to be displayed on the AMOLED panel;
determining a luminance value of each pixel included in the display window;
determining a representative luminance value of each pixel included in the display window from among luminance values of respective neighboring pixels;
comparing both the luminance value of each pixel included in the display window and the representative luminance value of each pixel included in the display window with a reference luminance value;
when both a luminance value of at least one pixel included in the display window and a representative luminance value corresponding to the at least one pixel are larger than the reference luminance value, identifying the at least one pixel as a pixel having a luminance value to be adjusted;
adjusting the luminance value of the identified at least one pixel to the reference luminance value; and
displaying the display window with the identified at least one pixel having the adjusted luminance value.

2. The low power display method as claimed in claim 1 , wherein a luminance value that is most prevalent among the luminance values of the respective neighboring pixels is determined as the representative luminance value.

3. The low power display method as claimed in claim 2 , wherein, when all of the luminance values of the respective neighboring pixels differ from one another, a smallest luminance value of the respective neighboring pixels is determined as the representative luminance value.

4. The low power display method as claimed in claim 3 , wherein, when there are a plurality of luminance values having a same prevalence among the luminance values of the respective neighboring pixels, a smallest luminance value from among the plurality luminance values is determined as the representative luminance value.

5. The low power display method as claimed in claim 1 , further comprising maintaining the luminance value of the at least one pixel included in the display window, when at least one of the luminance value of the at least one pixel and the representative luminance value corresponding to the least one pixel is below the reference luminance value.

6. The low power display method as claimed in claim 1 , further comprising adjusting a saturation of the pixels included in the display window, after the luminance value of the identified at least one pixel is adjusted to the reference luminance value.

7. A display device comprising:
an Active Matrix Organic Light Emitting Diodes (AMOLED) panel; and
a control unit configured to determine a display window including content to be displayed on the AMOLED panel, to determine a luminance value of each pixel included in the display window, to determine a representative luminance value of each pixel included in the display window from among luminance values of respective neighboring pixels, to compare both the luminance value of each pixel included in the display window and the representative luminance value of each pixel included in the display window with a reference luminance value, when both the luminance value of at least one pixel included in the display window and a representative luminance value corresponding to the at least one pixel are larger than the reference luminance value, to identify the at least one pixel as a pixel having a luminance value that is to be adjusted, and to adjust the luminance value of the identified at least one pixel to the reference luminance value, and to display the display widow with the identified at least one pixel having the adjusted luminance value on the AMOLED panel.

8. The display device as claimed in claim 7 , wherein a luminance value that is most prevalent among the luminance values of the respective neighboring pixels is determined as the representative luminance value.

9. The display device as claimed in claim 8 , wherein, when all the luminance values of the respective neighboring pixels differ from one another, a smallest luminance value of the respective neighboring pixels is determined as the representative luminance value.

10. The display device as claimed in claim 9 , wherein, when there are a plurality of luminance values having a same prevalence among the luminance values of the respective neighboring pixels, a smallest luminance value from among the plurality of luminance values is determined as the representative luminance value.

11. The display device as claimed in claim 7 , wherein the control unit is configured to maintain the luminance value of the at least one pixel included in the display window, when at least one of the luminance value of the at least one pixel and the representative luminance value corresponding to the at least one pixel is below the reference luminance value.

12. The display device as claimed in claim 7 , wherein the control unit is configured to adjust a saturation of the pixels included in the display window after the luminance value of the at least one pixel is adjusted to the reference luminance value.

13. The display device as claimed in claim 7 , wherein the respective neighboring pixels are eight pixels that surround each pixel included in the display window.

Assignees

• Jeong Young-Min
• Cho Sung-Dae
• Samsung Electronics Co Ltd

Inventors

• Jeong Young-Min
• Cho Sung-Dae

Classifications

• G09G3/2007 Primary

  Display of intermediate tones · CPC title

• G09G2320/0626

  for control of overall brightness · CPC title

• G09G3/3208

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

• G09G2320/0686

  with two or more screen areas displaying information with different brightness or colours · CPC title

• G09G2320/066

  for control of contrast · CPC title