Method of display by sub-frame driving

• US 20020171640A1
• Filed: 04/18/2002
• Published: 11/21/2002
• Est. Priority Date: 05/21/2001
• Status: Active Grant

• Current Assignee: Vida Sense Innovation Ltd. (Advanced IP Innovations Limited)
• Original Assignee: Chi Mei Optoelectronics (InnoLux Corporation)
• Inventors: Bu, Lin-Kai, Chen, Li-Yi
• Granted Patent: US 6,870,530 B2
• Time in Patent Office: Days
• US Class Current: 345/208
• CPC Class Codes: G09G 3/2011 by amplitude modulation
• CPC Class Codes: G09G 3/2077 by a combination of two or more gradation control methods
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers

Abstract

A method of display by sub-frame driving on a monitor. The monitor has pixels arranged in an m*n array, m and n are integers. The monitor 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 monitor. 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 frame corresponds to a driving shift, the method displays the sub-frames sequentially, wherein, the method of displaying the pixel (i,j) of the p-th sub frame includes 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

1. A method of display by sub-frame driving on a monitor, the monitor including pixels arranged in an m*n array, m and n being integers, the monitor 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 monitor, 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 frame corresponding to a driving shift, the method comprising the steps of:

displaying the sub-frames sequentially, wherein, the method of displaying the pixel (i,j) of the p-th sub frame comprises;

applying a driving voltage (i,j) to the pixel (i,j), the driving voltage (i,j) being a target driving voltage corresponding to the pixel (i,j) plus the driving shift corresponding to the p-th sub frame;

wherein, 1≦

p≦

k, 0<

i≦

m, 0<

j≦

n, p, i, j, and k are integers.

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

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

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

5. The method according to claim 1, wherein the monitor is an LCD (Liquid Crystal Dispaly).

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

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

8. A method of display by sub-frame driving on a monitor, the monitor including pixels arranged in an m*n array, m and n being integers, the monitor 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 monitor, the frame period being divided 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, the method comprising the steps of:

displaying the first sub-frame, the first sub-frame corresponding to a first driving shift, the method of displaying the pixel (i,j) of the first sub frame comprising;

applying a first driving voltage (i,j) to the pixel (i,j), the driving voltage (i,j) being a target driving voltage corresponding to the pixel (i,j) plus the first driving shift corresponding to the first sub frame, wherein 0<

i≦

m, 0<

j≦

n, p, i, and j are integers; and

displaying the second sub-frame, the second sub-frame corresponding to a second driving shift, the method of displaying the pixel (i,j) of the second sub frame comprising;

applying a second driving voltage (i,j) to the pixel (i,j), the driving voltage (i,j) being the target driving voltage corresponding to the pixel (i,j) plus the second driving shift corresponding to the first sub frame.

9. The method 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 method according to claim 8, wherein the sub-frame periods are unequal.

11. The method according to claim 8, wherein the monitor is an LCD (Liquid Crystal Dispaly).

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

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

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

16. The method according to claim 14, wherein the first driving voltage is generated according to a target driving voltage and a first driving shift, and the target driving voltage is generated from the frame signal.

17. The method according to claim 14, wherein the second driving voltage is generated according to a target driving voltage and a second driving shift, and the target driving voltage is generated from the frame signal.

18. The method according to claim 14, wherein the monitor is an LCD (Liquid Crystal Dispaly).

19. The method according to claim 14, wherein the monitor is an OLED (Organic Light Emitter Diode) display.

20. The method according to claim 14, wherein the monitor is a PDP (Plasma Display Panel).

14. A method of display by sub-frame driving on a monitor, the monitor including pixels arranged in an m*n array, m and n being integers, the monitor 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 monitor, the frame period being divided 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, the first sub frame corresponding to a first driving voltage, and the second sub frame corresponding to a second driving voltage, the first driving voltage (i,j) and the second driving voltage (i,j) for the pixel (i,j) are unequal, wherein 0<

i≦

m, 0<

j≦

n, p, i, and j are integers, the method comprising the steps of;

displaying the first sub-frame according to the first driving voltage; and

displaying the second sub-frame according to the second driving voltage.