Display apparatus and method of driving the same

Patent metadata

Field	Value
Publication number	US-11900847-B2
Application number	US-202217939018-A
Country	US
Kind code	B2
Filing date	Sep 7, 2022
Priority date	Oct 25, 2021
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A display apparatus includes a display panel and a display driver. The display panel has a first pixel structure. The display driver is configured to receive input image data including first data, and generate a driving signal for driving the display panel based on conversion data. The display driver includes a converter configured to convert the first data into the conversion data. The conversion data include conversion data in N rows and M columns. Each of (2K−1)-th column conversion data include first color conversion data representing a first color and second color conversion data representing a second color. Each of 2K-th column conversion data include third color conversion data representing a third color and fourth color conversion data representing the second color. N, M and K are positive integers.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel having a first pixel structure; and
a display driver configured to receive input image data including first data, and generate a driving signal for driving the display panel based on conversion data,
wherein the display driver includes a converter configured to convert the first data into the conversion data,
wherein the conversion data include conversion data in N rows and M columns,
wherein each of (2K−1)-th column conversion data include first color conversion data representing a red color and second color conversion data representing a green color,
wherein each of 2K-th column conversion data include third color conversion data representing a blue color and fourth color conversion data representing the green color,
wherein N, M and K are positive integers,
wherein the input image data include second row dummy blue data and a second row and first column blue data, and
wherein the conversion data include second row dummy blue conversion data generated based on the second row dummy blue data and the second row and first column blue data.

2. The display apparatus of claim 1 , wherein the first pixel structure is an RGBG pixel structure,
wherein the first data are RGB data, and
wherein the converter is an RGB-RGBG converter.

3. The display apparatus of claim 1 , wherein the input image data further include second row dummy red data, second row dummy green data, a second row and first column red data, a second row and first column green data, a second row and second column red data, a second row and second column green data, a second row and second column blue data, a second row and third column red data, a second row and third column green data, and a second row and third column blue data, and
wherein the conversion data further include second row dummy green conversion data corresponding to the second row dummy green data, second row and first column red conversion data generated based on the second row and first column red data and the second row and second column red data, and second row and first column green conversion data corresponding to the second row and first column green data, second row and second column blue conversion data generated based on the second row and second column blue data and the second row and third column blue data, and second row and second column green conversion data corresponding to the second row and second column green data.

4. The display apparatus of claim 3 , wherein the second row dummy blue conversion data correspond to an average value of the second row dummy blue data and the second row and first column blue data,
wherein the second row and first column red conversion data correspond to an average value of the second row and first column red data and the second row and second column red data, and
wherein the second row and second column blue conversion data correspond to an average value of the second row and second column blue data and the second row and third column blue data.

5. The display apparatus of claim 3 , wherein the input image data further include a first row dummy red data, a first row dummy green data, a first row dummy blue data, a first row and first column red data, a first row and first column green data, a first row and first column blue data, a first row and second column red data, a first row and second column green data, a first row and second column blue data, a first row and third column red data, a first row and third column green data, a first row and third column blue data, a first row and fourth column red data, a first row and fourth column green data and a first row and fourth column blue data, and
wherein the conversion data further include first row dummy red conversion data generated based on the first row dummy red data and the first row and first column red data and first row dummy green conversion data corresponding to the first row dummy green data, first row and first column red conversion data generated based on the first row and first column red data and the first row and second column red data and first row and first column green conversion data corresponding to the first row and first column green data, first row and second column blue conversion data generated based on the first row and first column blue data and the first row and second column blue data and first row and second column green conversion data corresponding to the first row and second column green data, and first row and third column red conversion data generated based on the first row and third column red data and the first row and fourth column red data.

6. The display apparatus of claim 5 , wherein the first row dummy red conversion data correspond to an average value of the first row dummy red data and the first row and first column red data,
wherein the first row and first column red conversion data correspond to an average value of the first row and first column red data and the first row and second column red data,
wherein the first row and second column blue conversion data correspond to an average value of the first row and first column blue data and the first row and second column blue data, and
wherein the first row and third column red conversion data correspond to an average value of the first row and third column red data and the first row and fourth column red data.

7. The display apparatus of claim 5 , wherein the display panel includes a first row R dummy pixel, a second row B dummy pixel, a first row and first column R subpixel, a first row and first column G subpixel, a first row and second column B subpixel, a first row and second column G subpixel, a first row and third column R subpixel, a second row and first column B subpixel, a second row and first column G subpixel, a second row and second column R subpixel, a second row and second column G subpixel, and a second row and third column B subpixel.

8. The display apparatus of claim 7 , wherein the display panel further includes:
a dummy data line connected to the first row R dummy pixel and the second row and first column B subpixel; and
data lines, the data lines including:
a first data line connected to the first row and first column R subpixel and the second row and second column R subpixel,
a second data line connected to the first row and first column G subpixel and the second row and first column G subpixel,
a third data line connected to the first row and second column B subpixel and the second row and third column B subpixel, and
a fourth data line connected to the first row and second column G subpixel and the second row and second column G subpixel.

9. The display apparatus of claim 8 , wherein the display driver is configured to generate output data corresponding to the conversion data, and apply the output data to the subpixels of the display panel through the data lines.

10. The display apparatus of claim 9 , wherein the output data corresponding to the first row and first column red conversion data are applied to the first row and first column R subpixel,
wherein the output data corresponding to the first row and first column green conversion data are applied to the first row and first column G subpixel,
wherein the output data corresponding to the first row and second column blue conversion data are applied to the first row and second column B subpixel
wherein the output data corresponding to the first row and second column green conversion data are applied to the first row and second column G subpixel,
wherein the output data corresponding to the first row and third column red conversion data are applied to the first row and third column R subpixel,
wherein the output data correspo

Assignees

• Samsung Display Co Ltd

Inventors

• Park Sehyuk
• Roh Jinyoung
• Bae Woomi
• Seo Hae-Kwan
• Sohn Youngha

Classifications

• G09G3/2003 Primary

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title

• G09G2310/0275

  Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current · 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

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2300/0452

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