DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME

• US 20100123647A1
• Filed: 05/01/2009
• Published: 05/20/2010
• Est. Priority Date: 11/19/2008
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Hee-Bum, You, Bong-Hyun, Goo, Nam-Hee, Choi, Hee-Jin
• Application Number:
  US12/434,152
• Publication Number:
  US 20100123647A1
• Time in Patent Office: Days
• US Class Current: 345/55
• CPC Class Codes: G09G 2310/02 Addressing, scanning or driving the display screen or processing steps related thereto
• CPC Class Codes: G09G 2310/062 Waveforms for resetting a plurality of scan lines at a time
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2320/0252 Improving the response speed
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence

Abstract

A display apparatus includes: a display panel including gate lines, data lines and pixels; a gate driver connected to the gate lines and which transmits a first gate signal and a second gate signal to the gate lines; and a data driver connected to the data lines and which transmits a normal data signal and an impulsive data signal to the data lines. The pixels receive the normal data signal in response to the first gate signal and receive the impulsive data signal in response to the second gate signal. The gate lines are divided into a first group and a second group adjacent to the first group. An order in which the first gate signal is transmitted to the gate lines in the first group is different from an order in which the first gate signal is transmitted to the gate lines in the second group.

Claims

1. A display apparatus comprising:

a display panel comprising;

a substrate;

gate lines;

data lines which cross the gate lines; and

pixels connected to the gate lines and the data lines, the pixels displaying an image;

a gate driver connected to the gate lines, the gate driver transmitting a first gate signal and a second gate signal to the gate lines; and

a data driver connected to the data lines, the data driver transmitting normal data voltages and impulsive data voltages to the data lines, wherein

the pixels receive the normal data voltages in response to the first gate signal,

the pixels receive the impulsive data voltages in response to the second gate signal,

the gate lines are divided into at least one first group and at least one second group,

the at least one first group is disposed adjacent to the at least one second group, and

an first order in which the first gate signal is transmitted to the gate lines in the at least one first group is different from an second order in which the first gate signal is transmitted to the gate lines in the at least one second group.

2. The display apparatus of claim 1, wherein

the at least one first group comprises a-th through m-th gate lines disposed sequentially on the substrate,

the first gate signal is transmitted sequentially to each of the a-th through m-th gate lines,

the at least one second group comprises n-th through x-th gate lines disposed sequentially on the substrate,

the first gate signal is transmitted sequentially to each of the x-th through n-th gate lines,

a, m, n and x are natural numbers,

a is less than m, and

n is less than x.

3. The display apparatus of claim 2, wherein

a normal data output time begins after the first gate signal is transmitted and ends before the second gate signal is transmitted, and

the normal data output time of the a-th gate line in the at least one first group is equal to the normal data output time of the x-th gate line in the at least one second group.

4. The display apparatus of claim 3, wherein the normal data output time of the m-th gate line in the at least one first group is equal to the normal data output time of the n-th gate line in the at least one second group.

5. The display apparatus of claim 4, wherein a number of the gate lines included in the at least one first group is equal to a number of the gate lines included in the at least one second group.

6. The display apparatus of claim 1, further comprising a signal controller, wherein

the signal controller receives original image signals, and

the signal controller generates normal data signals, which are corresponding to the normal data voltages, by changing an order of the original image signals based on at least one of the first order in which the first gate signal is transmitted to the gate lines in the at least one first group and the second order in which the first gate signal is transmitted to the gate lines in the at least one second group.

7. The display apparatus of claim 6, wherein

the at least one second group comprises n-th through x-th gate lines disposed sequentially on the substrate,

the signal controller changes the order of the original image signals to generate the normal data signals based on an arrangement order of the n-th through x-th gate lines,

n and x are natural numbers, and

n is less than x.

8. The display apparatus of claim 1, wherein the gate lines in the at least one first group simultaneously receive the second gate signal at a first time which is different from a second time when the gate lines in the at least one second group simultaneously receive the second gate signal.

9. A display apparatus comprising:

a display panel comprising;

a substrate;

gate lines;

data lines which cross the gate lines; and

pixels connected to the gate lines and the data lines, the pixels displaying an image;

a gate driver connected to the gate lines, the gate driver transmitting a first gate signal and a second gate signal to the gate lines;

a data driver connected to the data lines, the data driver transmitting normal data voltages and impulsive data voltages to the data lines; and

a signal controller, wherein

the pixels receive the normal data voltages in response to the first gate signal,

the pixels receive the impulsive data voltages in response to the second gate signal,

the gate lines are divided into at least one first group and at least one second group,

the at least one first group is disposed adjacent to the at least one second group,

an first order in which the first gate signal is transmitted to the gate lines in the at least one first group is different from an second order in which the first gate signal is transmitted to the gate lines in the at least one second group,

the signal controller receives original image signals, and

the signal controller generates the normal data signals, which are corresponding to the normal data voltages, by changing an order of the original image signals based on at least one of the first order in which the first gate signal is transmitted to the gate lines in the at least one first group and the second order in which the first gate signal is transmitted to the gate lines in the at least one second group.

10. The display apparatus of claim 9, wherein the gate lines in the at least one first group simultaneously receive the second gate signal at a first time which is different from a second time when the gate lines in the at least one second group simultaneously receive the second gate signal.

11. A method of driving a display apparatus, the method comprising:

providing a display panel comprising;

a substrate;

gate lines;

data lines which cross the gate lines; and

pixels connected to the gate lines and the data lines, the pixels displaying an image;

transmitting a first gate signal and a second gate signal to the gate lines; and

transmitting normal data voltages and impulsive data voltages to the data lines, wherein

the pixels receive the normal data voltages in response to the first gate signal,

the pixels receive the impulsive data voltages in response to the second gate signal,

the gate lines are divided into at least one first group and at least one second group,

the at least one first group is disposed adjacent to the at least one second group, and

an first order in which the first gate signal is transmitted to the gate lines in the at least one first group is different from an second order in which the first gate signal is transmitted to the gate lines in the at least one second group.

12. The method of claim 11, wherein

the at least one first group comprises a-th through m-th gate lines disposed sequentially on the substrate,

the transmitting the first gate signal to the gate lines comprises sequentially transmitting the first gate signal to each of the a-th through m-th gate lines,

the at least one second group comprises n-th through x-th gate lines disposed sequentially on the substrate,

the transmitting the first gate signal to the gate lines comprises further comprises sequentially transmitting the first gate signal to each of the x-th through n-th gate lines,

a, m, n, and x are natural numbers,

a is less than m, and

n is less than x.

13. The method of claim 12, wherein

a normal data output of time begins after the first gate signal is transmitted to the gate lines and ends before the second gate signal is transmitted to the gate lines, and

the normal data output time of the a-th gate line in the at least one first group is equal to the normal data output time of the x-th gate line in the at least one second group.

14. The method of claim 13, wherein the normal data output time of the m-th gate line in the at least one first group is equal to the normal data output time of the n-th gate line in the at least one second group.

15. The method of claim 14, wherein a number of the gate lines included in the at least one first group is equal to a number of the gate lines included in the at least one second group.

16. The method of claim 11, wherein the transmitting the normal data voltages comprises:

receiving original image signals; and

generating normal image signals by changing an order of the original image signals based on an order in which the first gate signal is transmitted to the gate lines, wherein

the normal image signals correspond to the normal image voltages.

17. The method of claim 16, wherein

the at least one second group comprises n-th through x-th gate lines disposed sequentially on the substrate,

the changing of the order of the original image signals is based on an arrangement of the n-th through x-th gate lines on the substrate,

n and x are natural numbers, and

n is less than x.

18. The method of claim 11, wherein the transmitting of the second gate signal comprises:

simultaneously transmitting the second gate signal to the gate lines in the at least one first group at a first time; and

simultaneously transmitting the second gate signal to the gate lines in the at least one second group, wherein the first time is different from the second time.

19. The method of claim 11, wherein the transmitting the first gate signal and the second gate signal to the gate lines is repeated in units of frames.

20. The method of claim 11, wherein the impulsive data voltages comprise black data.