Light emitting module and display device

Patent metadata

Field	Value
Publication number	US-12562099-B2
Application number	US-202218293352-A
Country	US
Kind code	B2
Filing date	Dec 23, 2022
Priority date	Dec 23, 2022
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A light emitting module includes: a light emitting element array provided on a first substrate, including a plurality of light emitting elements arranged in an array in a row direction and a column direction, each of which includes a first electrode and a second electrode, wherein a driving current of the light emitting element is greater than or equal to 1 mA; and a plurality of row driving chips and a plurality of column driving chips provided on the first substrate. At least one row driving chip and at least one column driving chip are spaced apart in the row direction and the column direction. At least one row driving chip and at least one column driving chip are respectively electrically connected to the first electrodes of at least one row of light emitting elements and the second electrodes of at least one column of light emitting elements.

First claim

What is claimed is:

1 . A light emitting module, comprising:
a first substrate; a light emitting element array provided on the first substrate, wherein the light emitting element array comprises a plurality of light emitting elements arranged in an array in a row direction and a column direction, each of the plurality of light emitting elements comprises a first electrode and a second electrode, and a driving current of the light emitting element is greater than or equal to 1 mA; a plurality of row driving chips provided on the first substrate, wherein at least one of the plurality of row driving chips is configured to drive at least one row of light emitting elements; and a plurality of column driving chips provided on the first substrate, wherein at least one of the plurality of column driving chips is configured to drive at least one column of light emitting elements, wherein at least one of the plurality of row driving chips and at least one of the plurality of column driving chips are spaced apart in a row direction and a column direction; wherein at least one of the plurality of row driving chips is electrically connected to the first electrodes of the at least one row of light emitting elements, and at least one of the plurality of column driving chips is electrically connected to the second electrodes of the at least one column of light emitting elements; wherein the light emitting module further comprises a plurality of first wires provided on the first substrate, and at least one of the plurality of first wires extends in the row direction, the at least one of the plurality of row driving chips comprises a first scanning signal terminal, and the first scanning signal terminal is electrically connected to the first electrodes of at least part of the light emitting elements in the at least one row of light emitting elements through the plurality of first wires; and wherein the light emitting module further comprises a plurality of second wires provided on the first substrate, and at least one of the plurality of second wires extends in the column direction, the at least one of the plurality of column driving chips comprises a first channel signal terminal, and the first channel signal terminal is electrically connected to the second electrodes of at least part of the light emitting elements in the at least one column of light emitting elements through the plurality of second wires.

2 . The light emitting module according to claim 1 , wherein the plurality of row driving chips are arranged in a column and spaced apart in the column direction; and/or
wherein the plurality of column driving chips are arranged in a row and spaced apart in the row direction.

3 . The light emitting module according to claim 1 , wherein the at least one of the plurality of row driving chips further comprises a second scanning signal terminal, and the second scanning signal terminal is electrically connected to the first electrodes of at least part of the light emitting elements in the at least one row of light emitting elements through the plurality of first wires.

4 . The light emitting module according to claim 3 , wherein for a single row driving chip of the plurality of row driving chips, the first scanning signal terminal is electrically connected to the first electrodes of at least part of the light emitting elements in an i th row of light emitting elements, and the second scanning signal terminal is electrically connected to the first electrodes of at least part of the light emitting elements in an (i+1) th row of light emitting elements, where i is a positive integer greater than or equal to 1.

5 . The light emitting module according to claim 4 , wherein the at least one of the plurality of column driving chips further comprises a second channel signal terminal, and the second channel signal terminal is electrically connected to the second electrodes of at least part of the light emitting elements in the at least one column of light emitting elements through the plurality of second wires.

6 . The light emitting module according to claim 5 , wherein for a single column driving chip of the plurality of column driving chips, the first channel signal terminal is electrically connected to the second electrodes of at least part of the light emitting elements in a j th column of light emitting elements, and the second channel signal terminal is electrically connected to the second electrodes of at least part of the light emitting elements in a (j+1) th column of light emitting elements, where j is a positive integer greater than or equal to 1.

7 . The light emitting module according to claim 6 , wherein the single row driving chip comprises at least two first scanning signal terminals and at least two second scanning signal terminals; and
wherein a first one of the at least two first scanning signal terminals is electrically connected to the first electrodes of a first part of the light emitting elements in the i th row of light emitting elements, and a second one of the at least two first scanning signal terminals is electrically connected to the first electrodes of a second part of the light emitting elements in the i th row of light emitting elements; and/or wherein a first one of the at least two second scanning signal terminals is electrically connected to the first electrodes of a first part of the light emitting elements in the (i+1) th row of light emitting elements, and a second one of the at least two second scanning signal terminals is electrically connected to the first electrodes of a second part of the light emitting elements in the (i+1) th row of light emitting elements.

8 . The light emitting module according to claim 7 , wherein the single column driving chip comprises at least two first channel signal terminals and at least two second channel signal terminals; and
wherein a first one of the at least two first channel signal terminals is electrically connected to the second electrodes of a first part of the light emitting elements in the j th column of light emitting elements, and a second one of the at least two first channel signal terminals is electrically connected to the second electrodes of a second part of the light emitting elements in the j th column of light emitting elements; and/or wherein a first one of the at least two second channel signal terminals is electrically connected to the second electrodes of a first part of the light emitting elements in the (j+1) th column of light emitting elements, and a second one of the at least two second channel signal terminals is electrically connected to the second electrodes of a second part of the light emitting elements in the (j+1) th column of light emitting elements.

9 . The light emitting module according to claim 8 , wherein the single row driving chip further comprises a first voltage signal terminal, a first grounding terminal, a first input terminal, and a first output terminal; and
wherein the light emitting module further comprises an external driving chip provided on the first substrate, the plurality of row driving chips comprise a first row driving chip closest to the external driving chip, and the first voltage signal terminal, the first grounding terminal and the first input terminal of the first row driving chip are respectively electrically connected to the external driving chip through a first driving line, a first grounding line and a first input signal line.

10 . The light emitting module according to claim 9 , wherein the first voltage signal terminal, the first grounding terminal and the first output terminal of the single row driving chip in the plurality of row driving chips are respectively electricall

Assignees

• Boe Mled Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Fu Bao
• Zhang Zhitao
• Gu Qibing
• Wang Changhao
• Li Xiuling
• Shi Lingyun
• Dong Xue
• Zhou Hao
• Jia Lili

Classifications

• G09G2330/021

  Power management, e.g. power saving · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/32 Primary

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• H10H29/10 Primary

  Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30) · CPC title

• H10H29/857 Primary

  Interconnections (of active-matrix LED displays H10H29/49) · CPC title