Method for driving semiconductor device including super-resolution processing

• US 8,780,034 B2
• Filed: 04/06/2010
• Issued: 07/15/2014
• Est. Priority Date: 04/08/2009
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Kimura, Hajime
• Primary Examiner(s): Misleh, Justin P
• Application Number:
  US12/754,731
• Publication Number:
  US 20100259653A1
• Time in Patent Office: 1,561 Days
• Field of Search: None
• US Class Current: 345/102
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/3413 Details of control of colour illumination sources
• CPC Class Codes: G09G 3/36 using liquid crystals
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/3614 Control of polarity reversal in general
• CPC Class Codes: G09G 3/3685 Details of drivers for data electrodes
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: H04N 5/142 Edging; Contouring
• CPC Class Codes: H04N 5/208 for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
• CPC Class Codes: H04N 7/0125 one of the standards being a high definition standard

Abstract

The resolution of a low-resolution image is made high and a stereoscopic image is displayed. Resolution is made high by super-resolution processing. In this case, the super-resolution processing is performed after edge enhancement processing is performed. Accordingly, a stereoscopic image with high resolution and high quality can be displayed. Alternatively, after image analysis processing is performed, edge enhancement processing and super-resolution processing are concurrently performed. Accordingly, processing time can be shortened.

Claims

1. A method for driving a liquid crystal display device, comprising:

performing a super-resolution processing which uses part of a first data and creates a second data;

performing a local dimming processing which uses the other part of the first data and creates a third data controlling a luminance of a backlight concurrently with the super-resolution processing; and

performing the local dimming processing which uses the second data and the third data and determines a video signal of a pixel.

2. The method for driving the liquid crystal display device, according to claim 1,

wherein the local dimming processing is performed in one of a plurality of CPU cores, and

wherein the super-resolution processing is performed in the other one of the plurality of CPU cores.

3. The method for driving the liquid crystal display device, according to claim 1, wherein the super-resolution processing is performed by a first processing system and a second processing system.

4. The method for driving the liquid crystal display device, according to claim 3, wherein the super-resolution processing is performed by the first processing system and the super-resolution processing is performed by the second processing system at the same time.

5. A method for driving a liquid crystal display device, comprising:

performing an edge enhancement processing which uses part of a first data and creates a second data;

performing a super-resolution processing which uses the second data and creates a third data;

performing a local dimming processing which uses the other part of the first data and creates a fourth data controlling a luminance of a backlight concurrently with at least one of the edge enhancement processing and the super-resolution processing; and

performing the local dimming processing which uses the third data and the fourth data and determines a video signal of a pixel.

6. The method for driving the liquid crystal display device, according to claim 5,

wherein the local dimming processing is performed in one of a plurality of CPU cores, and

wherein the edge enhancement processing and the super-resolution processing are performed in the remnant of the plurality of CPU cores.

7. The method for driving the liquid crystal display device, according to claim 5, wherein the super-resolution processing is performed by a first processing system and a second processing system.

8. The method for driving the liquid crystal display device, according to claim 7, wherein the super-resolution processing is performed by the first processing system and the super-resolution processing is performed by the second processing system at the same time.

9. A method for driving a liquid crystal display device, comprising:

performing a frame interpolation processing which uses part of a first data and creates a second data;

performing a super-resolution processing which uses the second data and creates a third data;

performing a local dimming processing which uses the other part of the first data and creates a fourth data controlling a luminance of a backlight concurrently with at least one of the frame interpolation processing and the super-resolution processing; and

performing the local dimming processing which uses the third data and the fourth data and determines a video signal of a pixel.

10. The method for driving the liquid crystal display device, according to claim 9,

wherein the local dimming processing is performed in one of a plurality of CPU cores, and

wherein the frame interpolation processing and the super-resolution processing are performed in the remnant of the plurality of CPU cores.

11. The method for driving the liquid crystal display device, according to claim 9, wherein the super-resolution processing is performed by a first processing system and a second processing system.

12. The method for driving the liquid crystal display device, according to claim 11, wherein the super-resolution processing is performed by the first processing system and the super-resolution processing is performed by the second processing system at the same time.

13. A method for driving a liquid crystal display device, comprising:

performing a frame interpolation processing which uses part of a first data and creates a second data;

performing an edge enhancement processing which uses the second data and creates a third data;

performing a super-resolution processing which uses the third data and creates a fourth data;

performing a local dimming processing which uses the other part of the first data and creates a fifth data controlling a luminance of a backlight concurrently with at least one of the frame interpolation processing, the edge enhancement processing, and the super-resolution processing; and

performing the local dimming processing which uses the third data and the fifth data and determines a video signal of a pixel.

14. The method for driving the liquid crystal display device, according to claim 13,

wherein the local dimming processing is performed in one of a plurality of CPU cores, and

wherein the frame interpolation processing, the edge enhancement processing, and the super-resolution processing are performed in the remnant of the plurality of CPU cores.

15. The method for driving the liquid crystal display device, according to claim 13, wherein the super-resolution processing is performed by a first processing system and a second processing system.

16. The method for driving the liquid crystal display device, according to claim 15, wherein the super-resolution processing is performed by the first processing system and the super-resolution processing is performed by the second processing system at the same time.