Large-area display device and large-area display device driving system

Patent metadata

Field	Value
Publication number	US-12027115-B2
Application number	US-202217983996-A
Country	US
Kind code	B2
Filing date	Nov 9, 2022
Priority date	Nov 12, 2021
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

A large-area display device can include a first individual display device including a plurality of first pixels, and a second individual display device including a plurality of second pixels and overlapping with the first individual display device in an overlapping area. The first individual display device is configured to be driven so that one or more pixels among the plurality of first pixels that are overlapped by the second individual display device in the overlapping area do not display an image, and the second individual display device is configured to drive one or more pixels among the plurality of second pixels located in the overlapping area to display an image.

First claim

What is claimed is:

1. A large-area display device comprising:
a first individual display device including a plurality of first pixels;
a second individual display device including a plurality of second pixels and partially overlapping with the first individual display device in an overlapping area; and
an integrated controller configured to:
divide the plurality of first pixels of the first individual display device into a plurality of first driving units of pixels, each first driving unit including at least two adjacent first pixels, and
divide the plurality of second pixels of the second individual display device into a plurality of second driving units of pixels, each second driving unit including at least two adjacent second pixels,
wherein the second individual display device partially overlaps a row or column of the first driving units of pixels included in the first individual display device, such that an overlapped first set of first pixels in the row or column of the first driving units is overlapped by the second individual display device and a non-overlapped second set of first pixels in the row or column of the first driving units is not overlapped by the second individual display device, and
wherein the integrated controller is further configured to control the overlapped first set of first pixels not to emit light and control only one first pixel of the non-overlapped second set of first pixels to emit light.

2. The large-area display device of claim 1 , wherein the second individual display device includes a narrow bezel of a first width, and at least a portion of the narrow bezel overlaps with the first individual display device, and
wherein a distance between two pixels displaying an image in adjacent driving units is greater than or equal to the first width.

3. The large-area display device of claim 2 , wherein the narrow bezel is positioned to overlap a pixel which does not display an image in the driving unit.

4. The large-area display device of claim 2 , wherein the narrow bezel positioned in the overlapping area includes an inclined surface.

5. The large-area display device of claim 4 , wherein the first individual display device includes a first guide rail positioned at a rear side of the first individual display device, or the second individual display device includes a second guide rail positioned at a rear side of the second individual display device.

6. The large-area display device of claim 4 , wherein the large-area display device include a plurality of individual display devices configured to be separable from each other.

7. The large-area display device of claim 1 , wherein the large-area display device includes a plurality of individual display devices including at least the first individual display device and the second individual display device,
wherein each of the first and second driving units of pixels include an upper left pixel, an upper right pixel, a lower left pixel, and a lower right pixel,
wherein the plurality of individual display devices includes an upper left individual display device positioned at an upper left corner of the large-area display device, an upper right individual display device positioned at an upper right corner of the large-area display device, a lower left individual display device positioned at a lower left corner of the large-area display device, and a lower right individual display device positioned at a lower right corner of the large-area display device, and
wherein the upper left individual display device, the upper right individual display device, the lower left individual display device, and the lower right individual display device overlap each other.

8. The large-area display device of claim 7 , wherein the upper left individual display device is positioned at a bottom of the large-area display device, and the upper left pixel of the upper left individual display device is configured to emit light and is not overlapped by any of the upper right individual display device, the lower left individual display device and the lower right individual display device.

9. The large-area display device of claim 7 , wherein the upper right individual display device among the overlapping individual display devices is positioned at a bottom of the large-area display device, and the upper right pixel of the upper right individual display device is configured to emit light and is not overlapped by any of the upper left individual display device, the lower left individual display device and the lower right individual display device.

10. The large-area display device of claim 7 , wherein the lower left individual display device among the overlapping individual display devices is positioned at a bottom of the large-area display device, and the lower left pixel of the lower left individual display device is configured to emit light and is not overlapped by any of the upper right individual display device, the upper left individual display device and the lower right individual display device.

11. The large-area display device of claim 7 , wherein the lower right individual display device among the overlapping individual display devices is positioned at a bottom of the large-area display device, and the lower right pixel of the lower right individual display device is configured to emit light and is not overlapped by any of the upper right individual display device, the upper left individual display device and the lower left individual display device.

12. The large-area display device of claim 1 , wherein the large-area display device includes a plurality of individual display devices including the first individual display device and the second individual display device, a third individual display device and a fourth individual display device, and
wherein the large-area display device includes a two-overlapping area in which two of the first through fourth individual display devices overlap with each other and a four-overlapping area in which the first, second, third and fourth individual display devices overlap with each other.

13. The large-area display device of claim 1 , wherein the large-area display device includes a plurality of individual display devices including the first individual display device and the second individual display device, and
wherein the plurality of individual display devices are arranged in a matrix manner including two or more rows and two or more columns.

14. The large-area display device of claim 13 , wherein individual display devices among the plurality of individual display devices positioned at opposite ends of one row or opposite ends of one column have different display area sizes viewed from an outside of the large-area display device.

15. The large-area display device of claim 1 , wherein each of the first driving unit and the second driving unit includes an upper left corner pixel, an upper right corner pixel, a lower left corner pixel and a lower right corner pixel.

16. The large-area display device of claim 15 , wherein the integrated controller is further configured to drive only the upper left corner pixel of the first individual display device with the second individual display device being overlapped onto the upper right corner pixel and the lower right corner pixel of the first individual display device.

17. The large-area display device of claim 15 , wherein the integrated controller is further configured to drive only the upper right corner pixel of the second individual display device with third individual display device being overlapped onto the upper left corner pixel an

Assignees

• Lg Display Co Ltd

Inventors

• Park Jongjin
• Na Byeonghyeon
• Ryu Jungwon
• Lee Hankyeol

Classifications

• G09G2320/045

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