DISPLAY DEVICE

• US 20160240157A1
• Filed: 02/09/2016
• Published: 08/18/2016
• Est. Priority Date: 02/12/2015
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: AOKI, Yoshiro, KIMURA, Hiroyuki, OKA, Shinichiro
• Granted Patent: US 10,049,631 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/08 Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
• CPC Class Codes: G09G 2310/0218 with collection of electrodes in groups for n-dimensional addressing
• CPC Class Codes: G09G 2310/0281 Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 3/3666 with the matrix divided into sections

Abstract

According to one embodiment, an active matrix display device includes a non-rectangular display portion in which a part of an outer edge is curved or bent, display pixels arrayed in a matrix in the display portion, gate lines connected for each row of the display pixels, signal lines connected for each column of the display pixels, a gate line driving circuit, a signal line driving circuit, and bus lines extending along a part of an edge of the display portion outside the display portion. A part of the signal lines extends from an edge opposite to the bus lines of the display portion to the bus lines through the display portion, is connected to the bus lines, and further, extends from the bus lines to the edge opposite to the bus lines through the display portion.

Claims

1. An active matrix display device comprising:

a non-rectangular display portion in which at least a part of an outer edge is curved or bent;

a plurality of display pixels arrayed in a matrix in the display portion;

a plurality of gate lines connected for each row of the display pixels;

a plurality of signal lines connected for each column of the display pixels;

a gate line driving circuit configured to drive the gate lines;

a signal line driving circuit configured to supply a video signal to the signal lines; and

a plurality of bus lines extending along a part of an edge of the display portion outside the display portion, wherein

at least a part of the signal lines connected to the signal line driving circuit extends from an edge opposite to the bus lines of the display portion to the bus lines through the display portion, is connected to the bus lines, and further, extends from the bus lines to the edge opposite to the bus lines through the display portion.

2. The active matrix display device of claim 1, wherein the plurality of signal lines include a plurality of first signal lines each having an end connected to the signal line driving circuit and the other end connected to an end of the respective bus lines, and a plurality of second signal lines each having an end connected to the other end of the respective bus lines, the second signal lines extending from the bus lines to the edge opposite to the bus lines through the display portion.

3. The active matrix display device of claim 2, wherein the plurality of gate lines include a plurality of first gate lines extending along the display pixels of each row and supplying a control signal to the display pixels connected to the first signal lines, and a plurality of second gate lines extending along the display pixels of each row and supplying a control signal to the display pixels connected to the second signal lines.

4. The active matrix display device of claim 1, wherein the plurality of signal lines include a plurality of first signal lines each having an end connected to the signal line driving circuit and extending to an edge opposite to the signal line driving circuit through the display portion, and a plurality of second signal lines each having an end connected to the signal line driving circuit, extending to the bus lines parallel to the first signal lines, and subsequently, extending from the bus lines to the edge opposite to the bus lines through the display portion.

5. The active matrix display device of claim 1, wherein the gate line driving circuit is provided in an area which is sifted from the bus lines outside the display portion.

6. The active matrix display device of claim 2, wherein the gate line driving circuit is provided in an area which is sifted from the bus lines outside the display portion.

7. The active matrix display device of claim 4, wherein the gate line driving circuit is provided in an area which is sifted from the bus lines outside the display portion.

8. The active matrix display device of claim 1, wherein the display portion comprises a first edge which is curved, and the bus lines are provided along a part of the first edge.

9. The active matrix display device of claim 8, wherein the gate line driving circuit is provided along a portion different from the part of the first edge.

10. The active matrix display device of claim 9, wherein the display portion comprises an arc-shaped region defined by the first edge, and a normal display region continuous with the arc-shaped region,

the plurality of signal lines include a plurality of first signal lines provided in the normal display region and connected to the signal line driving circuit, and a plurality of second signal lines provided in the arc-shaped region and connected to the bus lines, and

the first signal lines located near the arc-shaped region are connected to the bus lines.

11. The active matrix display device of claim 9, wherein the display portion comprises an arc-shaped region defined by the first edge, and a normal display region continuous with the arc-shaped region, and

the plurality of signal lines include a plurality of first signal lines provided in the normal display region and connected to the signal line driving circuit, and a plurality of second signal lines each having an end connected to the signal line driving circuit, extending to the bus lines through the normal display region and subsequently extending from the bus lines to the edge opposite to the bus lines through the arc-shaped region.

12. The active matrix display device of claim 8, wherein the display portion comprises an arc-shaped region defined by the first edge, and a normal display region continuous with the arc-shaped region,

the plurality of signal lines include a plurality of first signal lines provided in the normal display region and connected to the signal line driving circuit, and a plurality of second signal lines provided in the arc-shaped region and connected to the bus lines, and

the first signal lines located near the arc-shaped region are connected to the bus lines.

13. The active matrix display device of claim 8, wherein the display portion comprises an arc-shaped region defined by the first edge, and a normal display region continuous with the arc-shaped region, and

the plurality of signal lines include a plurality of first signal lines provided in the normal display region and connected to the signal line driving circuit, and a plurality of second signal lines each having an end connected to the signal line driving circuit, extending to the bus lines through the normal display region and subsequently extending from the bus lines to the edge opposite to the bus lines through the arc-shaped region.

14. The active matrix display device of claim 1, wherein the display portion has an elliptical shape, an oval shape, an elongated circular shape or a circular shape.