Display control circuit

Patent metadata

Field	Value
Publication number	US-11049471-B2
Application number	US-201916524264-A
Country	US
Kind code	B2
Filing date	Jul 29, 2019
Priority date	Jul 29, 2019
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

A display control circuit transforms a plurality of input points of an input image to a plurality of target subpixels of a display panel. In the display panel, a first row of the target subpixels and a second row of the target subpixels are non-aligned in a vertical direction. The display control circuit includes a subpixel rendering circuit. The subpixel rendering circuit maps a first row of the input points to the first row of the target subpixels, and maps a second row of the input points to the second row of the target subpixels. The coordinates of the first row of the input points are respectively equivalent to the coordinates of the first row of the target subpixels. The coordinates of the second row of the input points are respectively equivalent to the coordinates of the second row of the target subpixels being shifted in a horizontal direction.

First claim

What is claimed is:

1. A display control circuit, applied to transform a plurality of input points of an input image to a plurality of target subpixels of a display panel, wherein the input points have at least a first colored input point, a second colored input points, and a third colored input point, and the target subpixels have at least a first colored subpixel, a second colored subpixel, and a third colored subpixel, wherein a first row of the target subpixels and a second row of the target subpixels are non-aligned in a vertical direction, wherein the display control circuit comprises:
a subpixel rendering circuit, configured to
map a first row of the input points to the first row of the target subpixels, wherein a plurality of coordinates of the first row of the target subpixels are respectively equivalent to a plurality of coordinates of the first row of the input points, and
map a second row of the input points to the second row of the target subpixels, wherein a plurality of coordinates of the first colored subpixels of the second row of the target subpixels are respectively equivalent to a plurality of coordinates of the first colored input points of the second row of the input points being shifted in a horizontal direction, and
a plurality of coordinates of the second row of the second and the third colored subpixels of the target subpixels are respectively equivalent to a plurality of coordinates of the second and the third colored input points of the second row of the input points.

2. The display control circuit according to claim 1 , wherein the subpixel rendering circuit is further configured to
map a third row of the input points to a third row of the target subpixels, wherein a plurality of coordinates of the third row of the target subpixels are respectively equivalent to a plurality of coordinates of the third row of the input points.

3. The display control circuit according to claim 2 , wherein the first row of the target subpixels and the third row of the target subpixels are aligned in the vertical direction.

4. A display control circuit, applied to transform a plurality of input points of an input image to a plurality of target subpixels of a display panel, wherein the input points have at least a first colored input point, a second colored input point, and a third colored input point, and the target subpixels have at least a first colored subpixel, a second colored subpixel, and a third colored subpixel, wherein the display control circuit:
a subpixel rendering circuit, configured to
map a first input point among the input points to a first target subpixel among the target subpixels, wherein a coordinate of the first target subpixel is equivalent to a coordinate of the first input point, and
map a second input point among the input points to a second target subpixel among the target subpixels, wherein a coordinate of the first colored subpixel of the second target subpixel is equivalent to a coordinate of the first colored input point of the second input point with a coordinate shift, and
coordinates of the second and the third colored subpixels of the second target subpixel are respectively equivalent to coordinates of the second and the third colored input points of the second input point.

5. The display control circuit according to claim 4 , wherein the first input point and the second input point are respectively located at a first row and a second row of the input image.

6. The display control circuit according to claim 4 , wherein the first target subpixel and the second target subpixel are respectively located at a first row and a second row of the display panel.

7. The display control circuit according to claim 4 , wherein the coordinate shift is in a first direction.

8. The display control circuit according to claim 7 , wherein the first target subpixel and the second target subpixel are arranged along a second direction, and the first direction and the second direction are perpendicular.

9. The display control circuit according to claim 7 , wherein the first target subpixel and the second target subpixel are arranged along the first direction.

Assignees

• Novatek Microelectronics Corp

Inventors

• Yang Jun-Yu
• Su Shang-Yu
• Pai Feng-Ting

Classifications

• G09G2320/0666

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

• G09G5/02 Primary

  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

• G09G2320/0686

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

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title

• G09G2340/0457

  Improvement of perceived resolution by subpixel rendering · CPC title