ARRAY SUBSTRATE AND DRIVING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE

• US 20160335937A1
• Filed: 04/20/2015
• Published: 11/17/2016
• Est. Priority Date: 11/28/2014
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: LEE, Chungchun, DUAN, Liye, LI, Yanzhao, WU, Chunwei, PARK, Hanjun
• Granted Patent: US 10,140,903 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0443 with several sub-pixels for the same colour in a pixel, not specifically used to display gradations G09G3/364 takes precedence
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2300/0465 Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
• CPC Class Codes: G09G 2300/0804 Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements
• CPC Class Codes: G09G 2300/0814 used for selection purposes, e.g. logical AND for partial update
• CPC Class Codes: G09G 2300/0852 being a dynamic memory with more than one capacitor
• CPC Class Codes: G09G 2300/0861 with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
• CPC Class Codes: G09G 2310/0251 Precharge or discharge of pixel before applying new pixel voltage
• CPC Class Codes: G09G 2340/0457 Improvement of perceived resolution by subpixel rendering
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/2074 using sub-pixels
• CPC Class Codes: G09G 3/3233 with pixel circuitry controlling the current through the light-emitting element

Abstract

The invention provides an array substrate and a driving method thereof, a display panel and a display device. The array substrate comprises a plurality of circulating units and a plurality of pixel circuits. Each circulating unit consists of four sub-pixel units located in four columns and two rows, sub-pixel units in any two adjacent columns are located in different rows and have different colors, and sub-pixel units in at least one row have different colors. Each sub-pixel unit is connected to one pixel circuit, and each sub-pixel unit comprises a first sub-pixel and a second sub-pixel located in the same column and having the same color. The pixel circuit is configured to drive the first sub-pixel when a first frame picture is displayed, and to drive the second sub-pixel when a second frame picture is displayed.

Claims

1-9. -9. (canceled)

10. An array substrate, comprising a plurality of circulating units and a plurality of pixel circuits, wherein

each circulating unit consists of four sub-pixel units located in four columns and two rows, sub-pixel units in any two adjacent columns are located in different rows and have different colors, and sub-pixel units in at least one row have different colors;

each sub-pixel unit is connected to one pixel circuit, and each sub-pixel unit comprises a first sub-pixel and a second sub-pixel located in the same column and having the same color; and

the pixel circuit is configured to drive the first sub-pixel when a first frame picture is displayed, and to drive the second sub-pixel when a second frame picture is displayed.

11. The array substrate according to claim 10, wherein the circulating unit comprises one red sub-pixel unit, one blue sub-pixel unit and two green sub-pixel units.

12. The array substrate according to claim 10, wherein the circulating unit comprises one red sub-pixel unit, one green sub-pixel unit, one blue sub-pixel unit and one white sub-pixel unit.

13. The array substrate according to claim 10, wherein

the pixel circuit comprises a first sub-pixel circuit, a second sub-pixel circuit and a control unit;

the first sub-pixel circuit is connected to the first sub-pixel, and the second sub-pixel circuit is connected to the second sub-pixel; and

the control unit is configured to control the first sub-pixel circuit to drive the first sub-pixel when the first frame picture is displayed, and to control the second sub-pixel circuit to drive the second sub-pixel when the second frame picture is displayed.

14. The array substrate according to claim 11, wherein

the pixel circuit comprises a first sub-pixel circuit, a second sub-pixel circuit and a control unit;

the first sub-pixel circuit is connected to the first sub-pixel, and the second sub-pixel circuit is connected to the second sub-pixel; and

the control unit is configured to control the first sub-pixel circuit to drive the first sub-pixel when the first frame picture is displayed, and to control the second sub-pixel circuit to drive the second sub-pixel when the second frame picture is displayed.

15. The array substrate according to claim 12, wherein

the pixel circuit comprises a first sub-pixel circuit, a second sub-pixel circuit and a control unit;

the first sub-pixel circuit is connected to the first sub-pixel, and the second sub-pixel circuit is connected to the second sub-pixel; and

the control unit is configured to control the first sub-pixel circuit to drive the first sub-pixel when the first frame picture is displayed, and to control the second sub-pixel circuit to drive the second sub-pixel when the second frame picture is displayed.

16. The array substrate according to claim 13, further comprising a plurality of data lines, and the first sub-pixel circuit and the second sub-pixel circuit in each pixel circuit are connected to the same data line.

17. The array substrate according to claim 14, further comprising a plurality of data lines, and the first sub-pixel circuit and the second sub-pixel circuit in each pixel circuit are connected to the same data line.

18. The array substrate according to claim 15, further comprising a plurality of data lines, and the first sub-pixel circuit and the second sub-pixel circuit in each pixel circuit are connected to the same data line.

19. The array substrate according to claim 13, wherein

the pixel circuit further comprises a compensation circuit, the first sub-pixel circuit at least comprises a first driving transistor, and the second sub-pixel circuit at least comprises a second driving transistor;

and

the compensation circuit is configured to compensate for a threshold voltage of the first driving transistor in the first sub-pixel circuit, and to compensate for a threshold voltage of the second driving transistor in the second sub-pixel circuit.

20. The array substrate according to claim 14, wherein

the pixel circuit further comprises a compensation circuit, the first sub-pixel circuit at least comprises a first driving transistor, and the second sub-pixel circuit at least comprises a second driving transistor;

and

the compensation circuit is configured to compensate for a threshold voltage of the first driving transistor in the first sub-pixel circuit, and to compensate for a threshold voltage of the second driving transistor in the second sub-pixel circuit.

21. The array substrate according to claim 15, wherein

the pixel circuit further comprises a compensation circuit, the first sub-pixel circuit at least comprises a first driving transistor, and the second sub-pixel circuit at least comprises a second driving transistor;

and

the compensation circuit is configured to compensate for a threshold voltage of the first driving transistor in the first sub-pixel circuit, and to compensate for a threshold voltage of the second driving transistor in the second sub-pixel circuit.

28. A display panel, comprising the array substrate according to claim 10.

29. A display device, comprising the display panel according to claim 28.

22. A driving method of an array substrate, the array substrate comprising a plurality of circulating units and a plurality of pixel circuits, wherein

each circulating unit consists of four sub-pixel units located in four columns and two rows, sub-pixel units in any two adjacent columns are located in different rows and have different colors, and sub-pixel units in at least one row have different colors;

each sub-pixel unit is connected to one pixel circuit, and each sub-pixel unit comprises a first sub-pixel and a second sub-pixel located in the same column and having the same color; and

the pixel circuit is configured to drive the first sub-pixel when a first frame picture is displayed, and to drive the second sub-pixel when a second frame picture is displayed.

the driving method comprising;

driving, by the pixel circuit, the first sub-pixel in the sub-pixel unit connected to the pixel circuit when a first frame picture is displayed; and

driving, by the pixel circuit, the second sub-pixel in the sub-pixel unit connected to the pixel circuit when a second frame picture is displayed.

23. The driving method according to claim 22, wherein the circulating unit comprises one red sub-pixel unit, one blue sub-pixel unit and two green sub-pixel units.

24. The driving method according to claim 22, wherein the circulating unit comprises one red sub-pixel unit, one green sub-pixel unit, one blue sub-pixel unit and one white sub-pixel unit.

25. The driving method according to claim 22, wherein

the pixel circuit comprises a first sub-pixel circuit, a second sub-pixel circuit and a control unit;

the first sub-pixel circuit is connected to the first sub-pixel, and the second sub-pixel circuit is connected to the second sub-pixel; and

the control unit is configured to control the first sub-pixel circuit to drive the first sub-pixel when the first frame picture is displayed, and to control the second sub-pixel circuit to drive the second sub-pixel when the second frame picture is displayed.

26. The driving method according to claim 25, wherein the array substrate further comprises a plurality of data lines, and the first sub-pixel circuit and the second sub-pixel circuit in each pixel circuit are connected to the same data line.

27. The driving method according to claim 25, wherein the pixel circuit further comprises a compensation circuit, the first sub-pixel circuit at least comprises a first driving transistor, and the second sub-pixel circuit at least comprises a second driving transistor;

and

the compensation circuit is configured to compensate for a threshold voltage of the first driving transistor in the first sub-pixel circuit, and to compensate for a threshold voltage of the second driving transistor in the second sub-pixel circuit.