IP Library › Granted Patent US 9,070,594
Granted Patent B2
US 9,070,594 · App. 14/291,912 · Granted Jun 30, 2015

Display device

Inventor: Jung Jun Im (Cheonan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L27/1222H01L27/124H01L27/3262H01L29/786
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Quick Facts
Patent No.
US 9,070,594
App. No.
14/291,912
Granted
Jun 30, 2015
Kind
B2
Abstract

There is provided a display device comprising a display panel, wherein the display panel comprises pixels, data lines, thin film transistors including first electrodes electrically connected with the data lines, second electrodes disposed to be spaced apart from the first electrodes in a first direction, semiconductor layers overlapping the first electrodes and the second electrodes, and gate electrodes overlapping the semiconductor layers and pads electrically connected with the second electrodes, wherein the thin film transistors includes first thin film transistors and second thin film transistors, which are alternately disposed, the semiconductor layers are divided into first semiconductor layers included in the first thin film transistors and second semiconductor layers included in the second thin film transistors, which are alternately disposed, and a length of the first semiconductor layer in the first direction is larger than a length of the second semiconductor layer in the first direction.

Claims (31)

1. A display device, comprising:

a display panel,

wherein the display panel comprises:

a plurality of pixels;

a plurality of data lines configured to transmit data signals to the plurality of pixels;

a plurality of thin film transistors including first electrodes electrically connected with the plurality of data lines, respectively, second electrodes disposed to be spaced apart from the first electrodes in a first direction, semiconductor layers overlapping the first electrodes and the second electrodes, and gate electrodes overlapping the semiconductor layers, respectively; and

pads electrically connected with the second electrodes,

wherein the plurality of thin film transistors includes a plurality of first thin film transistors and a plurality of second thin film transistors, which are alternately disposed,

the semiconductor layers are divided into first semiconductor layers included in the first thin film transistors and second semiconductor layers included in the second thin film transistors,

the first semiconductor layers and the second semiconductor layers are alternately disposed, and

a length of the first semiconductor layer in the first direction is larger than a length of the second semiconductor layer in the first direction.

2. The display device of claim 1 , wherein a distance between the first electrode and the second electrode included in the first thin film transistor is larger than a distance between the first electrode and the second electrode included in the second thin film transistor.

3. The display device of claim 2 , wherein a distance between the first electrode included in the first thin film transistor and the first electrode included in the second thin film transistor is larger than a distance between the second electrode included in the first thin film transistor and the second electrode included in the second thin film transistor.

4. The display device of claim 1 , wherein the display panel further comprises:

a first common gate line serving as the common gate electrode of the plurality of first thin film transistors; and

a second common gate line serving as the common gate electrode of the plurality of second thin film transistors.

5. The display device of claim 4 , wherein the first common gate line is extended in a second direction vertical to the first direction to overlap the first semiconductor layers, and

the second common gate line is extended in the second direction to overlap the second semiconductor layers.

6. The display device of claim 1 , wherein the display panel is divided into a display area, in which an image is displayed, and the plurality of pixels is disposed, and a non-display area surrounding the display area, and

the first semiconductor layer is disposed to be more adjacent to the display area than the second semiconductor layer.

7. The display device of claim 1 , wherein the display panel further comprises:

connection lines extended from the first electrodes in an opposite direction to the first direction and electrically connected with the data lines, and

a width of the first electrode in the second direction vertical to the first direction is larger than a width of the connection line in the second direction.

8. The display device of claim 1 , wherein the plurality of pixels includes a plurality of first to third pixels displaying different colors, and

the pads include:

a first pad electrically connected with the second electrodes of the plurality of thin film transistors connected with the plurality of data lines transmitting the data signals to the plurality of first pixels among the plurality of data lines;

a second pad connected with the second electrodes of the plurality of thin film transistors connected with the plurality of data lines transmitting the data signals to the plurality of second pixels among the plurality of data lines; and

a third pad connected with the second electrodes of the thin film transistors connected with the plurality of data lines transmitting the data signals to the plurality of third pixels among the plurality of data lines.

9. The display device of claim 1 , further comprising:

a data driver configured to apply the data signals to the plurality of data lines.

10. The display device of claim 1 , wherein pitches of the plurality of data lines are larger than pitches of the thin film transistors in the second direction vertical to the first direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2014
From: IM, JUNG JUN
To: SAMSUNG DISPLAY CO., LTD
Reel/Frame 032999/0587 →
Priority Claims (1)
KR 10-2013-0078429 · Jul 4, 2013 · national
Continuity (1)
Related Publication 20150008438A1 · Jan 8, 2015