Mura compensation device, display device and mura compensation method

1. A mura compensation device, comprising:

a first flexible circuit board; and

a de-mura circuit, comprising a storage unit for storing mura compensation data, wherein:

the de-mura circuit is provided in the first flexible circuit board;

the mura compensation device further comprises a peripheral circuit, the peripheral circuit comprising a power supply terminal, a first resistor, a second resistor, a third resistor, a fourth resistor and a capacitor;

a first terminal of the first resistor is coupled to the power supply terminal, and a second terminal of the first resistor is coupled to a first port of the storage unit;

a first terminal of the second resistor is coupled to the second terminal of the first resistor, and a second terminal of the second resistor is grounded;

a first terminal of the third resistor is coupled to the power supply terminal, and a second terminal of the third resistor is coupled to a second port of the storage unit;

a first terminal of the fourth resistor is coupled to the power supply terminal, and a second terminal of the fourth resistor is coupled to a third port of the storage unit; and

a first terminal of the capacitor is coupled to the power supply terminal, and a second terminal of the capacitor is grounded.

2. The mura compensation device according to claim 1 , wherein the storage unit further comprises a fourth port and a fifth port respectively configured to write the mura compensation data into the storage unit and read the mura compensation data from the storage unit.

3. A display device, comprising:

a mura compensation device and a display panel, wherein the mura compensation device comprises:

a first flexible circuit board; and

a de-mura circuit comprising a storage unit for storing mura compensation data, wherein the de-mura circuit is provided in the first flexible circuit board, wherein:

the mura compensation device further comprises a peripheral circuit;

the peripheral circuit comprises a power supply terminal, a first resistor, a second resistor, a third resistor, a fourth resistor and a capacitor;

a first terminal of the first resistor is coupled to the power supply terminal, and a second terminal of the first resistor is coupled to a first port of the storage unit;

a first terminal of the second resistor is coupled to the second terminal of the first resistor, and a second terminal of the second resistor is grounded;

a first terminal of the third resistor is coupled to the power supply terminal, and a second terminal of the third resistor is coupled to a second port of the storage unit;

a first terminal of the fourth resistor is coupled to the power supply terminal, and a second terminal of the fourth resistor is coupled to a third port of the storage unit; and

a first terminal of the capacitor is coupled to the power supply terminal, and a second terminal of the capacitor is grounded.

4. The display device according to claim 3 , further comprising:

a plurality of printed circuit boards, bonded to a same side of the display panel,

wherein at least two of the printed circuit boards are coupled through the first flexible circuit board.

5. The display device according to claim 4 , wherein a number of the plurality of printed circuit boards is greater than or equal to 3,

a part of the plurality of printed circuit boards is coupled through the first flexible circuit board, and another part of the plurality of printed circuit boards is coupled through a second flexible circuit board, and

the de-mura circuit is not provided in the second flexible circuit board.

6. The display device according to claim 3 , further comprising a control printed circuit board,

wherein a timing controller is provided in the control printed circuit board, and

the timing controller is coupled to the storage unit, and configured to read the mura compensation data stored in the storage unit to compensate display data of the display panel according to the mura compensation data.

7. The display device according to claim 3 , wherein the storage unit further comprises a fourth port and a fifth port respectively configured to write the mura compensation data into the storage unit and read the mura compensation data from the storage unit.

8. A mura compensation method applied to a display device, comprising:

providing the display device, the display device comprising a display panel and a plurality of printed circuit boards bonded to a same side of the display panel;

obtaining a light-on image of the display panel;

determining whether the display panel has mura according to the light-on image; and

coupling at least two of the plurality of printed circuit boards through a first flexible circuit board in response to the determination that the display panel has the mura, wherein a de-mura circuit is provided in the first flexible circuit board.

9. The mura compensation method according to claim 8 , further comprising: coupling the plurality of printed circuit boards through the second flexible circuit board in response to the determination that the display panel does not have the mura, wherein the de-mura circuit is not provided in the second flexible circuit board.

10. The mura compensation method according to claim 8 , wherein a number of the plurality of printed circuit boards is greater than or equal to 3, and

the method further comprises:

coupling a part of the plurality of printed circuit boards through the first flexible circuit board; and

coupling another part of the plurality of printed circuit boards through a second flexible circuit board,

wherein the de-mura circuit is not provided in the second flexible circuit board.

11. The mura compensation method according to claim 10 , further comprising:

obtaining mura compensation data based on the light-on image in accordance with the determination that the display panel has the mura; and

storing the mura compensation data in a storage unit of the de-mura circuit.

12. The mura compensation method according to claim 11 , further comprising:

reading the mura compensation data in the storage unit;

compensating received display data according to the mura compensation data; and

displaying compensated display data.