IP Library Granted Patent US 7,333,101
Granted Patent B2
US 7,333,101 · App. 11/034,918 · Granted Feb 19, 2008

Systems and devices for display in which frames are divided into subframes and assigned driving shift voltages

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Quick Facts
Patent No.
US 7,333,101
App. No.
11/034,918
Granted
Feb 19, 2008
Kind
B2
Abstract

Systems and devices for display by sub-frame driving on a display. The display has pixels arranged in an m*n array, m and n are integers. The display receives a frame signal for displaying a frame for a frame period. The frame signal includes the pixel data for each of the pixels of the display. The frame period being divided into k sub-frame periods, a sub-frame being displayed during each of the sub-frame period. Each of the sub-frames corresponds to a driving shift, the system or device displays the sub-frames sequentially, wherein, the system or device components for displaying the pixel (i,j) of the p-th sub-frame includes components for applying a driving voltage (i,j) to the pixel (i,j). The driving voltage (i,j) is a target driving voltage corresponding to the pixel (i,j) plus the corresponding driving shift.

Claims (74)

1. A device for driving a display having pixels (i,j) arranged in an m*n array, i, j, m and n being integers, comprising:

a receiver for receiving a frame signal for displaying a frame for a frame period, the frame signal including the pixel data for each of the pixels of the display screen;

a sub-frame determination component, connected to the receiver, for dividing the frame into a sequence of k sub-frames and the frame period into a sequence of k sub-frame periods;

a sub-frame target voltage component, connected to the sub-frame determination component, for determining a target driving voltage corresponding to the pixel data for a pixel (i,j);

a sub-frame driving shift voltage component, connected to the sub-frame determination component, for determining a driving shift voltage corresponding to a p-th sub-frame of the sequence of k sub-frames;

a sub-frame driving voltage component, connected to the sub-frame target voltage component and the sub-frame driving shift voltage component, for determining a driving voltage (i,j) corresponding to the pixel (i,j) based on the target driving voltage and the driving shift voltage;

a sub-frame display component, connected to the sub-frame driving voltage component, for applying a driving voltage (i,j) to each pixel (i,j) of the p-th sub-frame; and

a screen, connected to the sub-frame display component, for displaying the pixel data continuously during the sequence of sub-frames according to the driving voltage;

wherein 1≦p≦k, 0≦i<m, 0<j≦n, and p and k are integers.

2. The device according to claim 1 , wherein the driving voltages for the pixel (i,j) at each of the k sub-frames are of the same polarity.

3. The device according to claim 1 , wherein k is set to 2.

4. The device according to claim 1 , wherein the sub-frame periods are unequal.

5. The device according to claim 1 , wherein the display is an LCD (Liquid Crystal Display).

6. The device according to claim 1 , wherein the display is an OLED (Organic Light Emitter Diode) display.

7. The device according to claim 1 , wherein the display is a PDP (Plasma Display Panel).

8. A device for driving a display having pixels (i,j) arranged in an m*n array, i,j, m and n being integers, comprising:

a receiver for receiving a frame signal for displaying a frame for a frame period, the frame signal including pixel data for each of the pixels of the display;

a sub-frame determination component, connected to the receiver, for dividing the frame period into a first sub-frame period and a second sub-frame period, a first sub-frame being displayed during the first sub-frame period, and a second sub-frame being displayed during the second sub-frame period;

a sub-frame target voltage component, connected to the sub-frame determination component, for determining a target driving voltage corresponding to the pixel data for a pixel (i,j), wherein 0<i≦m, 0<j≦n;

a sub-frame driving shift voltage component, connected to the sub-frame determination component, for determining a first driving shift voltage assigned to the first sub-frame and for determining a second driving shift voltage assigned to the second sub-frame;

a sub-frame driving voltage component, connected to the sub-frame target voltage component and the sub-frame driving shift voltage component, for determining a first driving voltage (i,j) for each pixel (i,j) for the first sub-frame by adding the target driving voltage and the first driving shift voltage, and for determining a second driving voltage (i,j) for each pixel (i,j) for the second sub-frame by adding the target driving voltage and the second driving shift voltage;

a sub-frame display component, connected to the sub-frame driving voltage component, for applying the first driving voltage (i,j) to each pixel (i,j) of the first sub-frame and for applying the second driving voltage (i,j) to each pixel (i,j) of the second sub-frame; and

a screen, connected to the sub-frame display component, for continuously displaying the pixel data during the first and second sub-frames.

9. The device according to claim 8 , wherein the driving voltages for the pixel (i,j) at the first and second sub-frames are of the same polarity.

10. The device according to claim 8 , wherein the sub-frame periods are unequal.

11. The device according to claim 8 , wherein the display is an LCD (Liquid Crystal Display).

12. The device according to claim 8 , wherein the display is an OLED (Organic Light Emitter Diode) display.

13. The device according to claim 8 , wherein the display is a PDP (Plasma Display Panel).

14. A device for driving a display having pixels arranged in an m*n array, m and n being integers comprising:

a receiver for receiving a frame signal for displaying a frame for a frame period, the frame signal including pixel data for each of the pixels of the display;

a sub-frame determination component, connected to the receiver, for dividing the frame period into a first sub-frame period and a second sub-frame period;

a sub-frame driving shift voltage component, connected to the sub-frame determination component, for assigning a first driving shift voltage to a first sub-frame and for assigning a second driving shift voltage to a second sub-frame, wherein the first driving shift voltage and the second driving shift voltage for the pixel (i,j) are unequal;

a sub-frame display component, connected to the sub-frame driving shift voltage component and connected to a screen, for displaying the pixel data during the first sub-frame according to the first driving shift voltage and displaying the pixel data during the second sub-frame according to the second driving shift voltage, wherein the pixel data is displayed continuously on the screen during the first and second sub-frames.

15. The device according to claim 14 , wherein the first sub-frame period and the second sub-frame period are unequal.

16. The device according to claim 14 , wherein the display is an LCD (Liquid Crystal Display).

17. The device according to claim 14 , wherein the display is an OLED (Organic Light Emitter Diode) display.

18. The device according to claim 14 , wherein the display is a PDP (Plasma Display Panel).

19. A system for driving a display having pixels (i,j) arranged in an m*n array, i, j, m and n being integers, comprising:

a receiver for receiving a frame signal for displaying a frame for a frame period, the frame signal including the pixel data for each of the pixels of the display screen;

a divider, connected to the receiver, for dividing the frame into a sequence of k sub-frames and the frame period into a sequence of k sub-frame periods;

a sub-frame target voltage determiner, connected to the divider, for determining a target driving voltage corresponding to the pixel data for a pixel (i,j);

a sub-frame driving shift voltage determiner, connected to the divider, for determining a driving shift voltage corresponding to a p-th sub-frame of the sequence of k sub-frames;

a summer, connected to the sub-frame target voltage determiner and the sub-frame driving shift voltage determiner, for determining a driving voltage (i,j) corresponding to the pixel (i,j) by adding the target driving voltage and the driving shift voltage;

a driving voltage generator, connected to the summer, for applying a driving voltage (i,j) to each pixel (i,j) of the p-th sub-frame; and

a screen, connected to the driving voltage generator, for displaying the pixel data continuously during the sequence of sub-frames according to the driving voltage;

wherein 1≦p≦k, 0<i≦m, 0<j≦n, and p and k are integers.

20. The system according to claim 19 , wherein the driving voltages for the pixel (i,j) at each of the k sub-frames are of the same polarity.

21. The system according to claim 19 , wherein k is set to 2.

22. The system according to claim 19 , wherein the sub-frame periods are unequal.

23. The system according to claim 19 , wherein the display is an LCD (Liquid Crystal Display).

24. The system according to claim 19 , wherein the display is an OLED (Organic Light Emitter Diode) display.

25. The system according to claim 19 , wherein the display is a PDP (Plasma Display Panel).

26. A system for driving a display having pixels (i,j) arranged in an m*n array, i, j, m and n being integers, comprising:

a receiver for receiving a frame signal for displaying a frame for a frame period, the frame signal including pixel data for each of the pixels of the display;

a divider, connected to the receiver, for dividing the frame period into a first sub-frame period and a second sub-frame period, a first sub-frame being displayed during the first sub-frame period, and a second sub-frame being displayed during the second sub-frame period;

a sub-frame target voltage determiner, connected to the divider, for determining a target driving voltage corresponding to the pixel data for a pixel (i,j), wherein 0<i≦m, 0<j≦n;

a sub-frame driving shift voltage determiner, connected to the divider, for determining a first driving shift voltage assigned to the first sub-frame and for determining a second driving shift voltage assigned to the second sub-frame;

a summer, connected to the sub-frame target voltage determiner and the sub-frame driving shift voltage determiner, for determining a first driving voltage (i,j) for each pixel (i,j) for the first sub-frame by adding the target driving voltage and the first driving shift voltage, and for determining a second driving voltage (i,j) for each pixel (i,j) for the second sub-frame by adding the target driving voltage and the second driving shift voltage;

a driving voltage generator, connected to the summer, for applying the first driving voltage (i,j) to each pixel (i,j) of the first sub-frame and for applying the second driving voltage (i,j) to each pixel (i,j) of the second sub-frame; and

a screen, connected to the driving voltage generator, for continuously displaying the pixel data during the first and second sub-frames.

27. The system according to claim 26 , wherein the driving voltages for the pixel (i,j) at the first and second sub-frames are of the same polarity.

28. The system according to claim 26 , wherein the sub-frame periods are unequal.

29. The system according to claim 26 , wherein the display is an LCD (Liquid Crystal Display).

30. The system according to claim 26 , wherein the display is an OLED (Organic Light Emitter Diode) display.

31. The system according to claim 26 , wherein the display is a PDP (Plasma Display Panel).

32. A system for driving a display having pixels arranged in an m*n array, m and n being integers comprising:

a receiver for receiving a frame signal for displaying a frame for a frame period, the frame signal including pixel data for each of the pixels of the display;

a divider, connected to the receiver, for dividing the frame period into a first sub-frame period and a second sub-frame period;

a sub-frame driving shift voltage determiner, connected to the divider, for assigning a first driving shift voltage to a first sub-frame and for assigning a second driving shift voltage to a second sub-frame, wherein the first driving shift voltage and the second driving shift voltage for the pixel (i,j) are unequal;

a driving voltage generator, connected to the sub-frame driving shift voltage determiner and connected to a screen, for displaying the pixel data during the first sub-frame according to the first driving shift voltage and displaying the pixel data during the second sub-frame according to the second driving shift voltage, wherein the pixel data is displayed continuously on the screen during the first and second sub-frames.

33. The system according to claim 32 , wherein the first sub-frame period and the second sub-frame period are unequal.

34. The system according to claim 32 , wherein the display is an LCD (Liquid Crystal Display).

35. The system according to claim 32 , wherein the display is an OLED (Organic Light Emitter Diode) display.

36. The system according to claim 32 , wherein the display is a PDP (Plasma Display Panel).

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2019
From: INNOLUX CORPORATION
To: VIDA SENSE INNOVATION LTD.
Reel/Frame 049938/0689 →
CHANGE OF NAME Recorded Apr 3, 2014
From: CHIMEI INNOLUX CORPORATION
To: INNOLUX CORPORATION
Reel/Frame 032604/0487 →
MERGER Recorded May 5, 2010
From: CHI MEI OPTOELECTRONICS CORP.
To: CHIMEI INNOLUX CORPORATION
Reel/Frame 024329/0699 →