Device and Method for Image Processing in a Display Driver

Abstract

A display driver comprises image processing circuitry and driver circuitry. The image processing circuitry is configured to receive spatial distribution information of a physical quantity related to a display panel. The image processing circuitry is further configured to generate output voltage data by processing input pixel data associated with subpixels of the pixel. The drive circuitry is configured to drive the display panel based on the output voltage data.

1 - 25 . (canceled) 
     
     
         26 . A display driver comprising:
 image processing circuitry configured to:
 obtain a blending ratio for each subpixel of a pixel of a display panel, comprising one selected from the group consisting of:
 A. determining a free-form curve that represents a correspondence between a position in the display panel and the blending ratio, and
 determining the blending ratio based on the free-form curve, 
 
 B. determining a quadratic curve that represents a correspondence between a position in the display panel and the blending ratio, and
 determining the blending ratio based on the quadratic curve, and 
 
 C. determining a free-form curve that represents a correspondence between a position in the display panel and a curvature of the display panel,
 determining the curvature of the display panel based on the free-form curve, and 
 determining the blending ratio based on the determined curvature, 
 
 
 generate output voltage data using the blending ratio; and 
   drive circuitry configured to drive the display panel based on the output voltage data.   
     
     
         27 . The display driver of  claim 26 , wherein the free-form curve comprises a Bezier curve. 
     
     
         28 . The display driver of  claim 26 ,
 wherein the obtaining of the blending ratio is performed based on eye tracking data of a user observing the display panel.   
     
     
         29 . The display driver of  claim 28 , wherein the eye tracking data is generated based on a camera image captured by a camera. 
     
     
         30 . The display driver of  claim 28 , wherein the eye tracking data is generated based on a camera image captured by a camera and gyro data obtained by a gyro sensor. 
     
     
         31 . The display driver of  claim 26 , wherein the obtaining of the blending ratio is performed based on at least one selected from the group consisting of temperature distribution data of the display panel, ambient light distribution data of the display panel, and color temperature distribution data of the display panel. 
     
     
         32 . A display system, comprising:
 a display panel;   a host configured to generate input pixel data associated with a pixel of the display panel;   image processing circuitry configured to:
 obtain a blending ratio for each subpixel of the pixel, comprising one selected from the group consisting of:
 A. determining a free-form curve that represents a correspondence between a position in the display panel and the blending ratio, and
 determining the blending ratio based on the free-form curve, 
 
 B. determining a quadratic curve that represents a correspondence between a position in the display panel and the blending ratio, and
 determining the blending ratio based on the quadratic curve, and 
 
 C. determining a free-form curve that represents a correspondence between a position in the display panel and a curvature of the display panel,
 determining the curvature of the display panel based on the free-form curve, and 
 determining the blending ratio based on the determined curvature, 
 
 
 generate output voltage data by processing the input pixel data using the blending ratio; and 
   drive circuitry configured to drive the display panel based on the output voltage data.   
     
     
         33 . The display driver of  claim 32 , wherein the free-form curve comprises a Bezier curve. 
     
     
         34 . The display system of  claim 32 , wherein the obtaining of the blending ratio is performed based on eye tracking data of a user observing the display panel. 
     
     
         35 . The display system according to  claim 34  further comprising a camera,
 wherein the host is configured to generate the eye tracking data based on a camera image captured by the camera. 
 
     
     
         36 . The display system of  claim 34  further comprising a gyro sensor, wherein the host is configured to generate the eye tracking data based on gyro data obtained by the gyro sensor and the camera image. 
     
     
         37 . The display driver of  claim 32 , wherein the obtaining of the blending ratio is performed based on at least one selected from the group consisting of temperature distribution data of the display panel, ambient light distribution data of the display panel, and color temperature distribution data of the display panel. 
     
     
         38 . A method comprising:
 receiving input pixel data associated with a pixel of a display panel; and   obtaining a blending ratio for each subpixel of the pixel, comprising one selected from the group consisting of:
 A. determining a free-form curve that represents a correspondence between a position in the display panel and the blending ratio, and
 determining the blending ratio based on the free-form curve, 
 
 B. determining a quadratic curve that represents a correspondence between a position in the display panel and the blending ratio, and
 determining the blending ratio based on the quadratic curve, and 
 
 C. determining a free-form curve that represents a correspondence between a position in the display panel and a curvature of the display panel,
 determining the curvature of the display panel based on the free-form curve, and 
 determining the blending ratio based on the determined curvature; 
 
   generating output voltage data by processing the input pixel data using the blending ratio; and   driving the display panel based on the output voltage data.   
     
     
         39 . The method of  claim 38 , wherein the free-form curve comprises a Bezier curve. 
     
     
         40 . The method of  claim 38 , wherein the obtaining of the blending ratio is performed based on eye tracking data of a user observing the display panel. 
     
     
         41 . The method of  claim 40 , wherein the eye tracking data is generated based on a camera image captured by a camera. 
     
     
         42 . The method of  claim 40 , wherein the eye tracking data is generated based on a camera image captured by a camera and gyro data obtained by a gyro sensor. 
     
     
         43 . The method of  claim 38 , wherein the obtaining of the blending ratio is performed based on at least one selected from the group consisting of temperature distribution data of the display panel, ambient light distribution data of the display panel, and color temperature distribution data of the display panel.