Display panel and display device

Patent metadata

Field	Value
Publication number	US-12588401-B2
Application number	US-202318250995-A
Country	US
Kind code	B2
Filing date	Mar 1, 2023
Priority date	Feb 17, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

The present application provides a display panel and a display device. The display panel comprises a plurality of dummy lines, a plurality of first data lines and a plurality of fan-out lines electrically connected to a plurality of the first data lines in the active area. A plurality of the dummy lines include a plurality of first dummy lines being alternately spaced from a plurality of first data lines and a plurality of second dummy lines being disposed on extension lines of a plurality of fan-out lines, so as to improve the distribution density of wirings in the active area, thereby improving the problem of uneven display when the display panel is power off.

First claim

What is claimed is:

1 . A display panel comprising an active area, wherein the display panel comprises:
a plurality of data lines disposed in the active area and comprising a plurality of first data lines; and a plurality of fan-out lines disposed in the active area and being electrically connected to a plurality of the first data lines; wherein the display panel further comprises a plurality of dummy lines being disposed in the active area, the dummy lines comprise a plurality of first dummy lines being alternately spaced from a plurality of the first data lines and a plurality of second dummy lines being disposed on extension lines of a plurality of the fan-out lines; wherein each of the fan-out lines comprises a first sub line and a second sub line electrically connected to the first sub line, and a plurality of the dummy lines comprises a plurality of first sub dummy lines and a plurality of second sub dummy lines; wherein the first sub lines extend along a first direction, the second sub lines extend along a second direction intersecting the first direction, each of the first sub dummy lines being disposed on an extension line of the corresponding first sub line, and each of the second sub dummy lines being disposed on an extension line of the corresponding second sub line; wherein a plurality of the data lines further comprises a plurality of second data lines, and a plurality of the second data lines being alternately spaced from a plurality of the second sub dummy lines; wherein the active area comprises a main active area and a first active area, a second active area and a third active area being disposed on one side of the main active area, the second active area being disposed between the first active area and the third active area; wherein a plurality of the first data lines and a plurality of the first dummy lines extend from the first active area toward the second active area and the main active area along the second direction, a plurality of the second data lines extend from the third active area toward the second active area and the main active area along the second direction; wherein a plurality of the first sub lines being disposed in the second active area, and a plurality of the second sub lines being disposed in the third active area; wherein a plurality of the first sub dummy lines being disposed in the first active area and the third active area, and a plurality of the second sub dummy lines extend from the second active area toward the main active area along the second direction.

2 . The display panel of claim 1 , wherein the display panel comprises:
a first metal layer comprising a plurality of data lines, a plurality of second sub lines, a plurality of first dummy lines and a plurality of second sub dummy lines; and a second metal layer disposed at one side of the first metal layer and comprising a plurality of the first sub lines and a plurality of the first sub dummy lines.

3 . The display panel of claim 1 , wherein the second active area comprises a first sub active area and a second sub active area adjacent to the first sub active area, the first sub active area being disposed between the second sub active area and the first active area;
wherein a plurality of the first data lines and a plurality of the first dummy lines extend from the first active area toward the first sub active area and the main active area along the second direction, a plurality of the second data lines extend from the third active area toward the second sub active area and the main active area along the second direction, a plurality of the second sub dummy lines extend from the second sub active area toward the main active area along the second direction.

4 . The display panel according to claim 1 , wherein each of the first sub dummy lines disposed in the first active area and the corresponding first sub line form a first interval at a first boundary of the first active area and the second active area, each of the first sub dummy lines disposed in the third active area and the corresponding first sub line form a second interval at a second boundary of the second active area and the third active area, and each of the second sub dummy lines and the corresponding second sub line form a third interval at the second boundary;
wherein an included angle pattern formed by the intersection of the first boundary and the second boundary faces to the main active area.

5 . The display panel of claim 4 , wherein the display panel further comprises:
a plurality of first power lines, each of the first power lines being disposed between one of the plurality of first data lines and one of the plurality of first dummy lines and extends along the second direction; a plurality of second power lines, each of the second power lines being disposed between one of the plurality of second data lines and one of the plurality of second sub dummy lines and extends along the second direction; and, a plurality of first scanning lines disposed in the active area and extending along the first direction; wherein an orthographic projection of each of the first intervals on a corresponding first power line being at least partially overlapped with the first power line, an orthographic projection of each of the second intervals on a corresponding second power line being at least partially overlapped with the second power line, and an orthographic projection of each of the third intervals on a corresponding first scanning line being at least partially overlapped with the first scanning line.

6 . The display panel according to claim 5 , wherein a plurality of the first dummy lines being electrically connected to the first power supply lines, and a plurality of the second dummy lines being electrically connected to the first power supply lines and the second power supply lines.

7 . The display panel of claim 5 , wherein the display panel further comprises:
a plurality of sub pixels; and a plurality of pixel driving units electrically connected to a plurality of first power lines, a plurality of second power lines, a plurality of first scanning lines and a plurality of sub pixels; wherein at least one of the first sub lines being disposed between the two adjacent pixel driving units along the second direction.

8 . The display panel of claim 7 , wherein at least one of a plurality of the first intervals, a plurality of the second intervals, and a plurality of the third intervals being partially overlapped with a first electrode portion of the sub pixel.

9 . The display panel of claim 1 , wherein the dummy lines further comprise a plurality of third dummy lines being disposed in the main active area and extend along the first direction;
wherein each of the third dummy lines being partially overlapped with a plurality of the first data lines, a plurality of the second data lines, a plurality of the first dummy lines and a plurality of the second sub dummy lines.

10 . The display panel of claim 1 , wherein the first data lines in the first active area farther from the third active area being electrically connected to the second sub lines in the third active area farther from the first active area.

11 . A display device comprising a driving module and the display panel as claimed in claim 1 , wherein the driving module comprises a plurality of output terminals, a plurality of the output terminals being electrically connected to a plurality of the data lines;
wherein a plurality of the first data lines being arranged in a first sequence, data signals outputted from a plurality of first output terminals electrically connected to a plurality of the first data lines being arranged in a second sequence, w

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Du Minchen
• Wu Shaojing

Classifications

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10D86/00

  Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates · CPC title

• G09F9/30

  in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) · CPC title

• G09G3/20

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• H10K59/88 Primary

  Dummy elements, i.e. elements having non-functional features · CPC title