IP Library Granted Patent US 10,984,741
Granted Patent B2
US 10,984,741 · App. 15/948,327 · Granted Apr 20, 2021

Display apparatus and method of driving the same

Inventors: Juki Park (Anseong-si, KR); Tae-Jong Jun (Suwon-si, KR); Jinseob Byun (Seoul, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G09G3/3614G09G3/3611G09G3/3677G09G3/3688G09G3/3696G09G2300/0426G09G2300/0452G09G2310/0213G09G2320/028G09G2320/068
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Quick Facts
Patent No.
US 10,984,741
App. No.
15/948,327
Granted
Apr 20, 2021
Kind
B2
Abstract

A display apparatus includes a display panel, a gate driving circuit, and a data driving circuit. The display panel includes N gate lines, M data lines, and a plurality of pixels connected to the N gate lines and the M data lines. The gate driving circuit sequentially drives K-th, (K+2)-th, (K+4)-th, (K+12)-th, (K+14)-th, (K+16)-th, (K+24)-th, . . . , (N−11)-th, (N−9)-th, and (N−7)-th gate lines during a first subframe period, (K+6)-th, (K+8)-th, (K+10)-th, (K+18)-th, (K+20)-th, (K+22)-th, (K+30)-th, . . . , (N−5)-th, (N−3)-th, and (N−1)-th gate lines during a second subframe period, (K+1)-th, (K+3)-th, (K+5)-th, (K+13)-th, (K+15)-th, (K+17)-th, (K+25)-th, . . . , (N−10)-th, (N−8)-th, and (N−6)-th gate lines during a third subframe period, and (K+7)-th, (K+9)-th, (K+11)-th, (K+19)-th, (K+21)-th, (K+23)-th, (K+31)-th, . . . , (N−4)-th, (N−2)-th, and N-th gate lines during a fourth subframe period. The data driving circuit drives the M data lines by outputting data signals to the M data lines.

Claims (41)

1. A display apparatus comprising:

a display panel configured to display an image, and including N gate lines extending in a first direction, M data lines extending in a second direction substantially perpendicular to the first direction, and a plurality of pixels each of which is connected to a respective one of the N gate lines and a respective one of the M data lines, wherein N is a natural number greater than or equal to 48 and M is a natural number greater than or equal to 4;

a gate driving circuit configured to sequentially drive K-th, (K+2)-th, (K+4)-th, (K+12)-th, (K+14)-th, (K+16)-th, (K+24)-th, . . . , (N−11)-th, (N−9)-th, and (N−7)-th gate lines during a first subframe period, configured to sequentially drive (K+6)-th, (K+8)-th, (K+10)-th, (K+18)-th, (K+20)-th, (K+22)-th, (K+30)-th, . . . , (N−5)-th, (N−3)-th, and (N−1)-th gate lines during a second subframe period subsequent to the first subframe period, configured to sequentially drive (K+1)-th, (K+3)-th, (K+5)-th, (K+13)-th, (K+15)-th, (K+17)-th, (K+25)-th, . . . , (N−10)-th, (N−8)-th, and (N−6)-th gate lines during a third subframe period subsequent to the second subframe period, and configured to sequentially drive (K+7)-th, (K+9)-th, (K+11)-th, (K+19)-th, (K+21)-th, (K+23)-th, (K+31)-th, . . . , (N−4)-th, (N−2)-th, and N-th gate lines during a fourth subframe period subsequent to the third subframe period, wherein K is a natural number less than N; and

a data driving circuit configured to drive the M data lines by outputting a plurality of data signals to the M data lines.

2. The display apparatus of claim 1 , wherein each of the M data lines includes a first side and a second side along the second direction, and

each of the M data lines is connected to some of the plurality of pixels alternately at the first side and the second side.

3. The display apparatus of claim 2 , wherein the data driving circuit is configured to output first data signals having a first polarity during the first subframe period, configured to output second data signals having a second polarity opposite to the first polarity during the second subframe period, configured to output third data signals having the first polarity during the third subframe period, and configured to output fourth data signals having the second polarity during the fourth subframe period.

4. The display apparatus of claim 3 , wherein the plurality of data signals are reversed in polarity for every two data lines in the first direction.

5. The display apparatus of claim 4 , wherein each of the plurality of data signals is generated using one of a high gamma voltage and a low gamma voltage, and

the plurality of pixels has a gamma pattern in which a high gamma data voltage based on the high gamma voltage and a low gamma data voltage based on the low gamma voltage are alternately arranged for every row and column in the first and second directions.

6. The display apparatus of claim 1 , wherein each of the M data lines includes a first side along the second direction, and

each of the M data lines is connected to some of the plurality of pixels at the first side.

7. The display apparatus of claim 6 , wherein the data driving circuit is configured to output first data signals having a first polarity during the first subframe period, configured to output second data signals having a second polarity opposite to the first polarity during the second subframe period, configured to output third data signals having the first polarity during the third subframe period, and configured to output fourth data signals having the second polarity during the fourth subframe period.

8. The display apparatus of claim 7 , wherein the plurality of data signals are reversed in polarity for every two data lines in the first direction.

9. The display apparatus of claim 8 , wherein each of the plurality of data signals is generated using one of a high gamma voltage and a low gamma voltage, and

the plurality of pixels has a gamma pattern in which a high gamma data voltage based on the high gamma voltage and a low gamma data voltage based on the low gamma voltage are alternately arranged for every row and column in the first and second directions.

10. The display apparatus of claim 1 , wherein each of the M data lines includes a first side and a second side along the second direction, and

each of the M data lines is connected to some of the plurality of pixels, alternately for every three pixels, at the first side and the second side.

11. The display apparatus of claim 10 , wherein the data driving circuit is configured to output first data signals having a first polarity during the first subframe period, configured to output second data signals having a second polarity opposite to the first polarity during the second subframe period, configured to output third data signals having the first polarity during the third subframe period, and configured to output fourth data signals having the second polarity during the fourth subframe period.

12. The display apparatus of claim 11 , wherein the plurality of data signals are reversed in polarity for every two data lines in the first direction.

13. The display apparatus of claim 12 , wherein each of the plurality of data signals is generated using one of a high gamma voltage and a low gamma voltage, and

the plurality of pixels has a gamma pattern in which a high gamma data voltage based on the high gamma voltage and a low gamma data voltage based on the low gamma voltage are alternately arranged for every row and column in the first and second directions.

14. The display apparatus of claim 1 , wherein each of the plurality of pixels includes:

a plurality of first color pixels arranged in the first direction;

a plurality of second color pixels arranged in the first direction at a first side with respect to the plurality of first color pixels; and

a plurality of third color pixels arranged in the first direction at the first side with respect to the plurality of second color pixels.

15. The display apparatus of claim 14 , wherein the plurality of first color pixels include blue pixels, the plurality of second color pixels include green pixels, and the plurality of third color pixels include red pixels.

16. The display apparatus of claim 1 , wherein the plurality of pixels are reversed in polarity for every two pixels in the first direction and for every six pixels in the second direction.

17. A method of driving a display apparatus that displays an image and includes N gate lines extending in a first direction, M data lines extending in a second direction substantially perpendicular to the first direction, and a plurality of pixels each of which is connected to a respective one of the N gate lines and a respective one of the M data lines, wherein N is a natural number greater than or equal to 48 and M is a natural number greater than or equal to 4, the method comprising:

sequentially driving K-th, (K+2)-th, (K+4)-th, (K+12)-th, (K+14)-th, (K+16)-th, (K+24)-th, . . . , (N−11)-th, (N−9)-th, and (N−7)-th gate lines during a first subframe period, wherein K is a natural number less than N;

sequentially driving (K+6)-th, (K+8)-th, (K+10)-th, (K+18)-th, (K+20)-th, (K+22)-th, (K+30)-th, . . . , (N−5)-th, (N−3)-th, and (N−1)-th gate lines during a second subframe period subsequent to the first subframe period;

sequentially driving (K+1)-th, (K+3)-th, (K+5)-th, (K+13)-th, (K+15)-th, (K+17)-th, (K+25)-th, . . . , (N−10)-th, (N−8)-th, and (N−6)-th gate lines during a third subframe period subsequent to the second subframe period;

sequentially driving (K+7)-th, (K+9)-th, (K+11)-th, (K+19)-th, (K+21)-th, (K+23)-th, (K+31)-th, . . . , (N−4)-th, (N−2)-th, and N-th gate lines during a fourth subframe period subsequent to the third subframe period; and

driving the M data lines by outputting a plurality of data signals to the M data lines.

18. The method of claim 17 , wherein driving the M data lines includes:

outputting first data signals having a first polarity during the first subframe period;

outputting second data signals having a second polarity opposite to the first polarity during the second subframe period;

outputting third data signals having the first polarity during the third subframe period; and

outputting fourth data signals having the second polarity during the fourth subframe period.

19. The method of claim 18 , wherein each of the plurality of data signals is generated using one of a high gamma voltage and a low gamma voltage, and

the plurality of pixels has a gamma pattern in which a high gamma data voltage based on the high gamma voltage and a low gamma data voltage based on the low gamma voltage are alternately arranged for every row and column in the first and second directions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 9, 2018
From: PARK, JUKI; JUN, TAE-JONG; BYUN, JINSEOB
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 045867/0215 →
Priority Claims (1)
KR 10-2017-0086337 · Jul 7, 2017 · national
Continuity (1)
Related Publication 20190012972A1 · Jan 10, 2019