Display device

Patent metadata

Field	Value
Publication number	US-2018259802-A1
Application number	US-201815908940-A
Country	US
Kind code	A1
Filing date	Mar 1, 2018
Priority date	Mar 7, 2017
Publication date	Sep 13, 2018
Grant date	—

Abstract

In one embodiment, a display device includes a display area, a peripheral area, scanning lines, signal lines, a first driver in the peripheral area, and a second driver in the peripheral area. The display area has an arc-shaped corner. The first driver includes first and second buffers configured to apply voltage to the scanning lines, a first shift register unit configured to control the first buffer unit, and a second shift register unit configured to control the second buffer unit. At the corner, extension directions of the first buffer unit and the first shift register unit are equal to each other. Extension directions of the second buffer unit and the second shift register unit are different from each other.

First claim

What is claimed is:

1 . A display device comprising:
a display area including a plurality of pixels; a peripheral area around the display area; a plurality of scanning lines extending in a first direction in the display area; a plurality of signal lines extending in a second direction crossing the first direction in the display area; a first driver arranged in the peripheral area and connected to the scanning lines; and a second driver arranged in the peripheral area and connected to the signal lines, wherein the display area has an arc-shaped corner, the first driver includes a first buffer unit and a second buffer unit which are configured to apply voltage to the corresponding scanning lines, a first shift register unit configured to control the first buffer unit, and a second shift register unit configured to control the second buffer unit, at the corner, an extension direction of the first buffer unit and an extension direction of the first shift register unit are equal to each other, and an extension direction of the second buffer unit and an extension direction of the second shift register unit are different from each other.

2 . The display device of claim 1 , wherein the extension direction of the second shift register unit is equal to the extension direction of the first buffer unit and the extension direction of the first shift register unit.

3 . The display device of claim 1 , wherein the extension direction of the second buffer unit is equal to the extension direction of the first buffer unit and the extension direction of the first shift register unit.

4 . The display device of claim 1 , wherein each of the first buffer unit and the second buffer unit includes a plurality of buffer circuits, and
the buffer circuits are connected to the scanning lines, respectively.

5 . The display device of claim 1 , further comprising:
a first edge; a second edge located on an opposite side of the display area from the first edge; and a connection terminal along the first edge, wherein the second driver is provided between the display area and the first edge, and a part of the second driver is located on a second edge side from an outer edge of the display area which is closest to the first edge.

6 . The display device of claim 1 , wherein a part of the second driver is located between the first driver and the display area.

7 . The display device of claim 1 , wherein the first driver includes a portion extending parallel to the second direction and a portion extending in a direction crossing the first direction and the second direction.

8 . The display device of claim 1 , wherein
the first driver further includes a third buffer unit configured to apply voltage to the corresponding scanning line, and a third shift register unit configured to control the third buffer unit, the first shift register unit and the second shift register unit are adjacent to each other, and the second shift register unit and the third shift register unit are adjacent to each other, and a distance between the first shift register unit and the second shift register unit in the first direction and a distance between the second shift register unit and the third shift register unit in the first direction are different from each other.

9 . The display device of claim 1 , wherein
the first driver further includes a third buffer unit configured to apply voltage to the corresponding scanning line, and a third shift register unit configured to control the third buffer unit, the first buffer unit and the second buffer unit are adjacent to each other, and the second buffer unit and the third buffer unit are adjacent to each other, and a distance between the first buffer unit and the second buffer unit in the first direction and a distance between the second buffer unit and the third buffer unit in the first direction are different from each other.

10 . The display device of claim 1 , wherein the second driver includes a portion extending parallel to the first direction and a portion extending in a direction crossing the first direction and the second direction.

11 . The display device of claim 1 , wherein
the second driver includes a first selector unit and a second selector unit adjacent to the first selector unit, each of the first selector unit and the second selector unit includes a selector circuit connected to the signal line, and the first selector unit and the second selector unit are not aligned with each other in the second direction.

12 . The display device of claim 11 , wherein a number of the selector circuits included in the first selector unit and a number of the selector units included in the second selector unit are different from each other.

13 . The display device of claim 11 , wherein
the second driver further includes a third selector unit including the selector circuit, the first selector unit and the second selector unit are adjacent to each other, and the second selector unit and the third selector unit are adjacent to each other, and a distance between the first selector unit and the second selector unit in the first direction and a distance between the second selector unit and the third selector unit in the first direction are different from each other.

14 . A display device comprising:
a display area including a plurality of pixels; a peripheral area around the display area; a plurality of scanning lines extending in a first direction in the display area; a plurality of signal lines extending in a second direction crossing the first direction in the display area; a first driver arranged in the peripheral area and connected to the scanning lines; a second driver arranged in the peripheral area and connected to the signal lines; a first edge along a connection terminal; and a second edge located on an opposite side of the display area from the first edge, wherein the display area has an arc-shaped corner, the second driver is provided between the display area and the first edge, the second driver is located on a second edge side from an outer edge of the display area which is closest to the first edge, at the arc-shaped corner, and the first driver is curved along the corner in an arc shape.

15 . The display device of claim 14 , wherein
the first driver includes a first buffer unit and a second buffer unit which are configured to apply voltage to the corresponding scanning lines, a first shift register unit configured to control the first buffer unit, and a second shift register unit configured to control the second buffer unit, an extension direction of the first buffer unit and an extension direction of the first shift register unit are equal to each other, an extension direction of the second buffer unit and an extension direction of the second shift register unit are different from each other, and the first buffer unit, the first shift register unit, the second buffer unit and the second shift register unit are included in an arc-shaped curved portion of the first driver.

16 . The display device of claim 14 , wherein the second driver is curved in an arc shape between the arc-shaped curved portion of the first driver and the corner.

17 . The display device of claim 16 , further comprising a video line which supplies a video signal to the second driver, wherein
the second driver is arranged between the video line and the display area, and the video line is curved along the corner.

18 . The display device of claim 17 , wherein
the second driver includes a plurali

Assignees

• Japan Display Inc

Inventors

• Koide Gen
• Noshita Shimpei
• Kitamura Junichi

Classifications

• G02F1/13454 Primary

  Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence) · CPC title

• G09G3/3225

  using an active matrix · CPC title

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/1337

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title