Display panel repair device and display panel repair method

Patent metadata

Field	Value
Publication number	US-11328662-B2
Application number	US-201816094704-A
Country	US
Kind code	B2
Filing date	Jan 31, 2018
Priority date	Jun 27, 2017
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A display panel repair device and a display panel repair method are disclosed. The display panel repair device includes an ultrasonic generator and a beam control device. The ultrasonic generator is configured to generate ultrasonic; and the beam control device is configured to direct the ultrasonic to emit to a pre-determined position, so as to be able to repair a display panel to be repaired by the ultrasonic.

First claim

What is claimed is:

1. A display panel repair device, comprising:
an ultrasonic generator, which is configured to generate ultrasonic; and
a beam control device, which is configured to direct the ultrasonic to emit to a pre-determined position of a display panel to be repaired, so as to be able to repair the display panel to be repaired by the ultrasonic,
wherein the beam control device comprises a beam size control component provided in an emitting path of the ultrasonic, the beam size control component is configured to control a parameter of the ultrasonic which is incident onto a sub-pixel to be repaired of the display panel to be repaired, so as to allow the ultrasonic to be able to act on the sub-pixel to be repaired of the display panel to be repaired only,
wherein the beam size control component comprises a beam-shielding region which blocks the ultrasonic and a beam-transmitting region allows the ultrasonic to pass through.

2. The repair device according to claim 1 , wherein the beam size control component comprises two slits which intersect with each other;
a distance between the two slits is adjustable; and
an intersection area of the two slits forms the beam-transmitting region for the ultrasonic.

3. The repair device according to claim 1 , wherein the beam control device comprises a beam focusing element;
the beam focusing element is provided in an emitting path of the ultrasonic; and
the beam focusing element is configured to focus the ultrasonic.

4. The repair device according to claim 1 , further comprising an alignment device,
wherein the alignment device is configured to align the beam control device with a sub-pixel to be repaired of the display panel; and
the alignment device comprises a first image acquisition device, and the first image acquisition device is configured to obtain position information of the sub-pixel to be repaired through acquiring an image of at least part of a display region of the display panel.

5. The repair device according to claim 4 , further comprising a beam axis integration structure,
wherein the beam axis integration structure is configured to allow a light path of the first image acquisition device to coincide with a beam axis of the ultrasonic on the display panel; and
the beam axis integration structure is configured to allow at least part of the ultrasonic outputted by the ultrasonic generator to be able to be incident onto the sub-pixel to be repaired through reflection, and to allow the first image acquisition device to be able to acquire an image of the sub-pixel to be repaired through transmission, and the light path of the first image acquisition device coincides with the beam axis of the ultrasonic on the display panel.

6. The repair device according to claim 5 , wherein the beam axis integration structure comprises a glass plate;
the glass plate comprises a first surface and a second surface;
the ultrasonic generator faces toward the first surface, and the ultrasonic outputted by the ultrasonic generator is incident onto the first surface and is reflected to the sub-pixel to be repaired by the first surface; and
the first image acquisition device faces toward the second surface, light of the image of the sub-pixel to be repaired is incident onto the first surface and is able to transmitted from the first surface to the first image acquisition device through transmission, wherein the first image acquisition device is located at a side, at which the second surface is provided, of the glass plate.

7. The repair device according to claim 4 , further comprising a second beam axis integration structure,
wherein the second beam axis integration structure is configured to allow a light path of the first image acquisition device and a beam axis of the ultrasonic to be able to sequentially intersect the sub-pixel to be repaired by moving the ultrasonic generator and the first image acquisition device.

8. The repair device according to claim 7 , wherein the second beam axis integration structure comprises:
a guide rail, which comprises an alignment mark;
a first slide block, which fixedly connects with the first image acquisition device, wherein the first slide block is configured to allow the light path of the first image acquisition device to be able to intersect with the sub-pixel to be repaired; and
a second slide block, which fixedly connects with the ultrasonic generator, wherein the second slide block is configured to allow the beam axis of the ultrasonic to be able to intersect with the sub-pixel to be repaired.

9. The repair device according to claim 1 , further comprising a displacement mechanism,
wherein the displacement mechanism is configured to move the ultrasonic generator and the beam control device with respect to the display panel to be repaired based on position information of a sub-pixel to be repaired of the display panel so as to realize alignment between the ultrasonic generator and the sub-pixel to be repaired.

10. The repair device according to claim 9 , wherein the displacement mechanism realizes the alignment between the ultrasonic generator and the sub-pixel to be repaired by moving the ultrasonic generator and the beam control device.

11. A display panel repair method, comprising:
generating ultrasonic;
directing the ultrasonic to emit to a pre-determined position, so as to be able to repair a display panel to be repaired by the ultrasonic; and
controlling a parameter of the ultrasonic which is incident onto the sub-pixel to be repaired of the display panel to be repaired, so as to allow the ultrasonic to be able to act on a sub-pixel to be repaired of the display panel to be repaired only,
wherein a size of a beam of the ultrasonic, which is incident onto the sub-pixel to be repaired, is controlled through shielding, and
wherein an energy density of a beam of the ultrasonic, which is incident onto the sub-pixel to be repaired, is controlled through focusing.

12. The repair method according to claim 11 , wherein the display panel comprises a plurality of sub-pixels arranged in parallel; and
the ultrasonic is directed to emit to a sub-pixel to be repaired of the display panel to be repaired.

13. The repair method according to claim 12 , further comprising:
obtaining position information of the sub-pixel to be repaired through acquiring an image of at least part of a display region of the display panel so as to direct the ultrasonic to emit to the sub-pixel to be repaired.

14. The repair method according to claim 13 , further comprising:
allowing at least part of the ultrasonic to be able to be incident onto the sub-pixel to be repaired through reflection, and allowing the image of the sub-pixel to be repaired to be able to be acquired through transmission.

15. The repair device according to claim 1 , wherein the beam control device comprises a beam focusing element;
the beam focusing element is provided in an emitting path of the ultrasonic; and
the beam focusing element is configured to focus the ultrasonic.

16. The repair method according to claim 12 , further comprising:
controlling a parameter of the ultrasonic which is incident onto the sub-pixel to be repaired of the display panel to be repaired, so as to allow the ultrasonic to be able to act on a sub-pixel to be repaired of the display panel to be repaired only.

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Sun Shi
• Xie Xuewu
• Zhang Ameng
• Liu Bowen
• Ai Yu

Classifications

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• G09G3/3233 Primary

  with pixel circuitry controlling the current through the light-emitting element · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G09G2330/10

  Dealing with defective pixels · CPC title

• G02F1/13

  based on liquid crystals, e.g. single liquid crystal display cells · CPC title