Display apparatus and method of driving the same

Patent metadata

Field	Value
Publication number	US-2017309214-A1
Application number	US-201715644448-A
Country	US
Kind code	A1
Filing date	Jul 7, 2017
Priority date	Jul 31, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

A display apparatus includes a display panel, a timing controller, a gate driver, and a data driver. The display panel includes a plurality of pixel groups. Each of the pixel groups includes a first pixel and a second pixel disposed adjacent to the first pixel. The first and second pixels together include n (n is an odd number equal to or greater than 3) sub-pixels. The first and second pixels share their collective {(n+1)/2}th sub-pixel.

First claim

What is claimed is:

1 . A display apparatus comprising:
a plurality of sub-pixels; and a plurality of pixels each comprising a normal sub-pixel, wherein two adjacent ones of the pixels also share a shared sub-pixel, wherein a number of the sub-pixels is x.5 times greater than a number of the pixels (where x is a natural number).

2 . The display apparatus of claim 1 , wherein x=1 or 2.

3 . The display apparatus of claim 2 , wherein each shared sub-pixel and each normal sub-pixel has an aspect ratio of about 1:2.5 or about 1:1.5.

4 . A method of driving a display apparatus, comprising:
mapping an input data to an RGBW data configured to include red, green, blue, and white data; generating a first pixel data corresponding to a first pixel and a second pixel data corresponding to a second pixel disposed adjacent to the first pixel, the first and second pixel data generated from the RGBW data; and calculating a first shared sub-pixel data from a portion of the first pixel data corresponding to a shared sub-pixel shared by the first and second pixels, and a second shared sub-pixel data from a portion of the second pixel data corresponding to the shared sub-pixel, so as to generate a shared sub-pixel data.

5 . The method of claim 4 , wherein the shared sub-pixel data is generated by adding the first shared sub-pixel data and the second shared sub-pixel data.

6 . The method of claim 4 , wherein the shared sub-pixel data has a maximum grayscale corresponding to a half of a maximum grayscale of normal sub-pixel data respectively corresponding to normal sub-pixels that are not shared sub-pixels.

7 . A display apparatus comprising:
a display panel that comprises a plurality of pixel groups each comprising a first pixel and a second pixel disposed adjacent to the first pixel, the first and second pixels together comprising n (n is an odd number equal to or greater than 3) sub-pixels; a timing controller that generates, from input data, a first pixel data corresponding to the first pixel and a second pixel data corresponding to the second pixel, and generates a shared sub-pixel data corresponding to an {(n+1)/2}th sub-pixel on the basis of the first and second pixel data; a gate driver that applies gate signals to the sub-pixels; and a data driver that applies, to the sub-pixels, a data voltage corresponding to a portion of the first pixel data, a portion of the second pixel data, and the shared sub-pixel data.

8 . The display apparatus of claim 7 , wherein the input data comprises red, green, and blue data and each of the first and second data comprises red, green, blue, and white data.

9 . The display apparatus of claim 7 , wherein the shared sub-pixel data is generated by calculating a first shared sub-pixel data from first pixel data corresponding to the {(n+1)/2}th sub-pixel and a second shared sub-pixel data from the second pixel data corresponding to the {(n+1)/2}th sub-pixel.

10 . The display apparatus of claim 9 , wherein the first and second pixel data comprise normal sub-pixel data corresponding to other sub-pixels besides the {(n+1)/2}th sub-pixel, and wherein the timing controller does not render the normal sub-pixel data.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Sungjae
• Koh Jai-Hyun
• Kim Yu-Kwan
• Kim Jinpil
• Lee Iksoo
• Lim Namjae

Classifications

• G09G2340/06

  Colour space transformation · CPC title

• G09G2320/0673

  for control of gamma adjustment, e.g. selecting another gamma curve · CPC title

• G09G2310/08

  Details of timing specific for flat panels, other than clock recovery · CPC title

• G09G3/2092

  Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165) · CPC title

• G09G2300/0465

  Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness · CPC title