ACTIVE MATRIX SUBSTRATE, DISPLAY PANEL AND DISPLAY DEVICE

• US 20100156945A1
• Filed: 06/08/2007
• Published: 06/24/2010
• Est. Priority Date: 11/21/2006
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yoshida, Masahiro
• Granted Patent: US 8,363,191 B2
• Time in Patent Office: Days
• US Class Current: 345/690
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals
• CPC Class Codes: G02F 1/13456 Cell terminals located on one side of the display only
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 2201/56 Substrates having a particular shape, e.g. non-rectangular
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2320/0223 Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence

Abstract

In an active matrix substrate, a plurality of pixels are arranged to correspond to a display region of a liquid crystal panel that has a shape other than a rectangular shape. Further, scan lines that are arranged along rows with the smaller number of the pixels than the other rows among a plurality of scan lines and data lines that are arranged along columns with the smaller number of the pixels than the other columns among a plurality of data lines intersect each other at a position other than the display region.

Claims

1-13. -13. (canceled)

14. An active matrix substrate comprising:

a plurality of pixels arranged in a matrix having a plurality of rows and a plurality of columns arranged to define a display panel;

a plurality of first signal lines arranged along a row direction in the matrix; and

a plurality of second signal lines arranged along a column direction in the matrix so as to intersect the first signal lines;

wherein

in the plurality of pixels, the number of the pixels provided along at least one row and the number of the pixels provided along the other rows of the plurality of rows are different from each other and the number of the pixels provided along at least one column and the number of the pixels provided along the other columns of the plurality of columns are different from each other, so as to correspond to a display region of the display panel that has a shape other than a rectangular shape; and

a first signal line that is arranged along a row with the smaller number of the pixels than the other rows among the plurality of first signal lines and a second signal line that is arranged along a column with the smaller number of the pixels than the other columns among the plurality of second signal lines are arranged to intersect each other at a position other than the display region.

15. The active matrix substrate according to claim 14, wherein, in the plurality of first signal lines and the plurality of second signal lines, one signal line of the first signal line that is arranged along the row with the smaller number of the pixels than the other rows and the second signal line that is arranged along the column with the smaller number of the pixels than the other columns is arranged to extend so as to intersect the other signal lines at the position other than the display region.

16. The active matrix substrate according to claim 14, wherein at least one signal line of the plurality of first signal lines and the plurality of second signal lines comprise signal lines whose signal input directions of signals to be inputted are different from each other.

17. The active matrix substrate according to claim 16, wherein, when the at least one signal line of the plurality of first signal lines and the plurality of second signal lines comprise the signal lines whose signal input directions are different from each other, input sides of the signals in the one signal lines intersect the other signal lines of the plurality of first signal lines and the plurality of second signal lines at the position other than the display region.

18. The active matrix substrate according to claim 14, wherein opposed areas where the plurality of first signal lines and the plurality of second signal lines are opposed to each other at an intersection at the position other than the display region are larger than opposed areas where they are opposed to each other at their intersection in the display region.

19. The active matrix substrate according to claim 18, wherein the opposed areas at the intersection at the position other than the display region are at least twice as large as the opposed areas at the intersection in the display region.

20. The active matrix substrate according to claim 14, wherein an insulating film provided at the intersection of the plurality of first signal lines and the plurality of second signal lines at the position other than the display region is thinner than that provided at the intersection in the display region.

21. The active matrix substrate according to claim 20, wherein the thickness of the insulating film provided at the intersection at the position other than the display region is equal to or smaller than a half of that of the insulating film provided at the intersection in the display region.

22. The active matrix substrate according to claim 14, comprising:

a substrate main body in which the plurality of first signal lines and the plurality of second signal lines are arranged; and

a circuit placement portion including a first driving circuit and a second driving circuit for inputting signals to the plurality of first signal lines and the plurality of second signal lines, respectively.

23. A display panel comprising the active matrix substrate according to claim 14.

24. The display panel according to claim 23, having an outer shape that is determined based on the display region that has a shape other than the rectangular shape.

25. The display panel according to claim 23, comprising:

an opposed substrate that is disposed so as to be opposed to the active matrix substrate; and

a liquid crystal layer that is provided between the active matrix substrate and the opposed substrate.

26. A display device comprising a display portion wherein the display panel according to claim 23 is provided in the display portion.