Array substrate, display panel, and display device thereof

• US 10,644,038 B2
• Filed: 07/31/2018
• Issued: 05/05/2020
• Est. Priority Date: 03/27/2018
• Status: Active Grant

• Current Assignee: Shanghai AVIC Optoelectronics Company Limited (Tianma Microelectronics Company Limited)
• Original Assignee: Shanghai AVIC Optoelectronics Company Limited (Tianma Microelectronics Company Limited)
• Inventors: Wang, Tinghai, Jin, Huijun, Qin, Dandan, Fei, Rili, Xie, Ying
• Primary Examiner(s): Dicke, Chad M
• Application Number:
  US16/049,961
• Publication Number:
  US 20190304999A1
• Time in Patent Office: 644 Days
• Field of Search: None
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52

Abstract

An array substrate, a display panel, and a display device are provided. The array substrate includes a display region and a non-display region surrounding the display region. The array substrate also includes a plurality of gate lines. The plurality of gate lines include a plurality of regular gate lines and at least one irregular gate line. The plurality of regular gate lines are disposed in the display region and extended along a first direction. The at least one irregular gate line includes at least one first trace portion and a second trace portion electrically connected to each other. The at least one first trace portion has a same line width as a regular gate line of the plurality of regular gate lines, and the second trace portion has a line width smaller than the at least one first trace portion.

Claims

1. An array substrate, comprising:

a display region and a non-display region surrounding the display region, wherein;

the display region includes a first edge, and the first edge is recessed toward interior of the display region to form a display notch portion and at least one display protrusion portion,

the non-display region includes a first non-display region arranged adjacent to the first edge; and

a plurality of gate lines, wherein;

the plurality of gate lines include a plurality of regular gate lines and at least one irregular gate line,

the plurality of regular gate lines are disposed in the display region and extended along a first direction,

the at least one irregular gate line includes at least one first trace portion and a second trace portion electrically connected to each other,

the at least one first trace portion is disposed in the display protrusion portion and extended along the first direction, and the second trace portion is disposed in the first non-display region, and

the at least one first trace portion has a same line width as a regular gate line of the plurality of regular gate lines, and the second trace portion has a line width smaller than the at least one first trace portion.

2. The array substrate according to claim 1, further including:

a plurality of irregular gate lines, wherein;

the plurality of irregular gate lines include at least one first irregular gate line and at least one second irregular gate line,

a first trace portion of the at least one first irregular gate line has a length smaller than a first trace portion of the at least one second irregular gate line, and

a second trace portion of the at least one first irregular gate line has a line width smaller than a second trace portion of the at least one second irregular gate line.

3. The array substrate according to claim 2, wherein:

the second trace portion of the at least one second irregular gate line has the line width of approximately 4 μ

m; and

the second trace portion of the at least one first irregular gate line has the line width in a range of approximately 3 μ

m-3.5 μ

m.

4. The array substrate according to claim 1, further including:

a plurality of signal lines, wherein;

the plurality of signal lines are extended along a second direction, and the first direction intersects with the second direction,

the plurality of signal lines include a plurality of first signal lines and a second signal line,

the plurality of first signal lines are disposed in the display region,

the second signal line includes a first sub-portion and a second sub-portion, the first sub-portion is disposed in the display region, and the second sub-portion is disposed in the first non-display region, and

a first signal line of the plurality of first signal lines has a same line width as the first sub-portion of the second signal line, and the second sub-portion of the second signal line has a line width greater than the first sub-portion of the second signal line.

5. The array substrate according to claim 4, wherein:

a sum of areas of intersections between the first signal line and all the gate lines is S1, and a sum of areas of intersections between the second signal line and all the gate lines is S2, wherein S1=S2.

6. The array substrate according to claim 4, wherein:

the line width of the second sub-portion of the second signal line is D, and the line width of the first sub-portion of the second signal line is d, wherein D−

d≥

0.5 μ

m, and D>

d>

0.

7. The array substrate according to claim 4, wherein:

the second signal line further includes at least one conductive portion disposed in the first non-display region, wherein;

the at least one conductive portion is electrically connected to the second sub-portion of the second signal line, and

in a direction perpendicular to the array substrate, the at least one conductive portion overlaps with the second trace portion.

8. The array substrate according to claim 7, wherein:

the at least one conductive portion is extended along a length direction of the second trace portion which is overlapped with the at least one conductive portion.

9. The array substrate according to claim 7, wherein:

the at least one conductive portion is made of a same material as the second sub-portion of the second signal line; and

the at least one conductive portion is provided at a same layer as the second sub-portion of the second signal line.

10. The array substrate according to claim 4, wherein:

the plurality of signal lines further include at least one of a data line and a touch line.

11. The array substrate according to claim 1, further including:

a second edge, wherein;

the second edge is recessed toward the interior of the array substrate to form a notch portion and at least one protrusion portion in the array substrate, and

the second edge and the first edge are disposed at a same side of the display region.

12. A display panel, comprising:

an array substrate, wherein the array substrate comprises;

a display region and a non-display region surrounding the display region, wherein;

the display region includes a first edge, and the first edge is recessed toward interior of the display region to form a display notch portion and at least one display protrusion portion,

the non-display region includes a first non-display region arranged adjacent to the first edge; and

a plurality of gate lines, wherein;

the plurality of gate lines include a plurality of regular gate lines and at least one irregular gate line,

the plurality of regular gate lines are disposed in the display region and extended along a first direction,

the at least one irregular gate line includes at least one first trace portion and a second trace portion electrically connected to each other,

the at least one first trace portion is disposed in the display protrusion portion and extended along the first direction, and the second trace portion is disposed in the first non-display region, and

the at least one first trace portion has a same line width as a regular gate line of the plurality of regular gate lines, and the second trace portion has a line width smaller than the at least one first trace portion.

13. The display panel according to claim 12, wherein:

the array substrate further includes a plurality of irregular gate lines, wherein;

the plurality of irregular gate lines include at least one first irregular gate line and at least one second irregular gate line,

a first trace portion of the at least one first irregular gate line has a length smaller than a first trace portion of the at least one second irregular gate line, and

a second trace portion of the at least one first irregular gate line has a line width smaller than a second trace portion of the at least one second irregular gate line.

14. The display panel according to claim 12, wherein:

the array substrate further includes a plurality of signal lines, wherein;

the plurality of signal lines are extended along a second direction, and the first direction intersects with the second direction,

the plurality of signal lines include a plurality of first signal lines and a second signal line,

the plurality of first signal lines are disposed in the display region,

the second signal line includes a first sub-portion and a second sub-portion, the first sub-portion is disposed in the display region, and the second sub-portion is disposed in the first non-display region, and

a first signal line of the plurality of first signal lines has a same line width as the first sub-portion of the second signal line, and the second sub-portion of the second signal line has a line width greater than the first sub-portion of the second signal line.

15. A display device, comprising:

a display panel, wherein the display panel includes an array substrate, including;

a display region and a non-display region surrounding the display region, wherein;

the display region includes a first edge, and the first edge is recessed toward interior of the display region to form a display notch portion and at least one display protrusion portion,

the non-display region includes a first non-display region arranged adjacent to the first edge; and

a plurality of gate lines, wherein;

the plurality of gate lines include a plurality of regular gate lines and at least one irregular gate line,

the plurality of regular gate lines are disposed in the display region and extended along a first direction,

the at least one irregular gate line includes at least one first trace portion and a second trace portion electrically connected to each other,

the at least one first trace portion is disposed in the display protrusion portion and extended along the first direction, and the second trace portion is disposed in the first non-display region, and

the at least one first trace portion has a same line width as a regular gate line of the plurality of regular gate lines, and the second trace portion has a line width smaller than the at least one first trace portion.

16. The display device according to claim 15, wherein:

the array substrate further includes a plurality of irregular gate lines, wherein;

the plurality of irregular gate lines include at least one first irregular gate line and at least one second irregular gate line,

a first trace portion of the at least one first irregular gate line has a length smaller than a first trace portion of the at least one second irregular gate line, and

a second trace portion of the at least one first irregular gate line has a line width smaller than a second trace portion of the at least one second irregular gate line.

17. The display device according to claim 15, wherein:

the array substrate further includes a plurality of signal lines, wherein;

the plurality of signal lines are extended along a second direction, and the first direction intersects with the second direction,

the plurality of signal lines include a plurality of first signal lines and a second signal line,

the plurality of first signal lines are disposed in the display region,

the second signal line includes a first sub-portion and a second sub-portion, the first sub-portion is disposed in the display region, and the second sub-portion is disposed in the first non-display region, and

a first signal line of the plurality of first signal lines has a same line width as the first sub-portion of the second signal line, and the second sub-portion of the second signal line has a line width greater than the first sub-portion of the second signal line.