Display apparatus

Patent metadata

Field	Value
Publication number	US-2016232862-A1
Application number	US-201514824767-A
Country	US
Kind code	A1
Filing date	Aug 12, 2015
Priority date	Feb 5, 2015
Publication date	Aug 11, 2016
Grant date	—

Abstract

Provided is a display apparatus. The display apparatus includes a plurality of gate lines configured to receive gate signals and extending in a first direction, a plurality of data lines configured to receive data voltages and extending in a second direction that intersects the first direction, a plurality of pixels connected to the gate lines and data lines, and a plurality of inversion lines configured to receive inversion voltages having polarities opposite to those of the data voltages and extending in the second direction.

First claim

What is claimed is:

1 . A display apparatus comprising:
a plurality of gate lines configured to receive gate signals and extending in a first direction; a plurality of data lines configured to receive data voltages and extending in a second direction that intersects the first direction; a plurality of pixels connected to the gate lines and data lines; and a plurality of inversion lines configured to receive inversion voltages having polarities opposite to those of the data voltages and extending in the second direction.

2 . The display apparatus of claim 1 , wherein each of the inversion lines is disposed adjacent to a corresponding data line of the data lines.

3 . The display apparatus of claim 1 , further comprising:
a gate driving unit for applying the gate signals to the gate lines; and a data driving unit for applying the data voltages to the data lines.

4 . The display apparatus of claim 1 , further comprising an inversion driving unit for receiving the data voltages from the data lines and inverting the polarities of the data voltages to output the inverted voltages.

5 . The display apparatus of claim 4 , wherein the inversion driving unit is disposed to face the data driving unit with a display panel therebetween.

6 . The display apparatus of claim 4 , wherein the inversion driving unit comprises a plurality of inversion units disposed to correspond to the inversion lines to invert the polarities of the data voltages, thereby outputting the inverted voltages.

7 . The display apparatus of claim 6 , wherein each of the data lines has one end connected to the data driving unit, and
each of the inversion units has an input terminal connected to the other end of a corresponding data line of the data lines, and each of the inversion units has an output terminal connected to a corresponding inversion line of the inversion lines.

8 . The display apparatus of claim 4 , wherein the inversion driving unit is disposed between the display panel and the data driving unit.

9 . The display apparatus of claim 8 , wherein the inversion driving unit comprises a plurality of inversion units configured to invert the polarities of the data voltages to output the inverted voltages, and
each of the data lines has one end connected to the data driving unit, and each of the inversion units has an input terminal connected to the other end of a corresponding data line of the data lines, and each of the inversion units has an output terminal connected to a corresponding inversion line of the inversion lines.

10 . The display apparatus of claim 1 , further comprising:
a gate driving unit configured to generate the gate signals; and a data driving unit configured to generate the data voltages to invert polarities of the data voltages, thereby outputting the inverted voltages.

11 . The display apparatus of claim 10 , wherein the data driving unit comprises an version driving unit for generating the inversion voltages.

12 . The display apparatus of claim 1 , wherein each of the pixels represents any one of red, green, blue, white, yellow, cyan, and magenta colors.

13 . The display apparatus of claim 1 ,wherein the pixels are grouped into first and second pixel groups, and
the first and second pixel groups are alternately disposed in the first and second directions.

14 . The display apparatus of claim 13 , wherein the first and second pixel groups in a h-th (where h is a natural number) row and the first and second pixel groups in an h+1-th row are configured to receive data voltages having polarities different from each other.

15 . The display apparatus of claim 13 , wherein each of the first and second pixel groups comprises 2k (where k is a natural number) pixels.

16 . The display apparatus of claim 13 , wherein each of the first pixel groups comprises two of red, green, blue, and white pixels, and
each of the second pixel groups comprises the other two of the red, green, blue, and white pixels.

17 . A display apparatus comprising:
a plurality of pixels connected to gate lines and data lines extending to cross each other; a plurality of inversion lines extending in parallel to the data lines and each of which is disposed adjacent to a corresponding data line of the data lines; a gate driving unit for applying gate signals to the gate lines; a data driving unit for applying data voltages to the data lines; and an inversion driving unit configured to receive the data voltages from the data lines to invert polarities of the data voltages, thereby configured to apply the inverted voltages to the inversion lines.

18 . The display apparatus of claim 17 , wherein the inversion driving unit is disposed to face the data driving unit with a display panel herebetween.

19 . The display apparatus of claim 17 , wherein the inversion driving unit comprises a plurality of inversion units disposed to correspond to the inversion lines to invert the polarities of the data voltages, thereby outputting the inverted voltages.

20 . The display apparatus of claim 19 , wherein each of the data lines has one end connected to the data driving unit, and
each of the inversion units has an input terminal connected to the other end of a corresponding data line of the data lines, and each of the inversion units has an output terminal connected to a corresponding inversion line of the inversion lines.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Yu-Kwan
• Koh Jai-Hyun
• Park Sungjae

Classifications

• G09G3/3607

  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 title

• G09G3/3696

  Generation of voltages supplied to electrode drivers · CPC title

• G09G3/3648 Primary

  using an active matrix (G09G3/367 - G09G3/3696 take precedence) · CPC title

• G09G2310/08

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

• G09G2300/0452

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