IP Library Granted Patent US 10,649,563
Granted Patent B2
US 10,649,563 · App. 15/698,232 · Granted May 12, 2020

Display device and method of manufacturing same

Inventors: Koji Ishizaki (Aichi, JP); Kouji Noguchi (Kanagawa, JP)
Assignee: JAPAN DISPLAY INC.
G06F3/0412G02F1/13306G02F1/13338G02F1/133514G02F1/133528G02F1/134309G06F3/044
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Quick Facts
Patent No.
US 10,649,563
App. No.
15/698,232
Granted
May 12, 2020
Kind
B2
Abstract

A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

Claims (39)

1. A display device comprising:

a display layer including (a) a plurality of pixel electrodes, (b) a scanning line extending in a first direction, and (c) a signal line extending in a second direction crossing the first direction;

a touch panel including a plurality of detection electrodes on an arrangement plane and a group of floating electrodes arranged between the detection electrodes,

wherein,

each of the detection electrodes includes one or more first slits overlapping the scanning line, the signal line, or both the scanning line and the signal line,

each of the one or more first slits is contained within a detection electrode,

the detection electrodes are arranged at a pitch of a natural multiple number of an arrangement pitch of the pixel electrodes in the arrangement plane in the first direction, the second direction, or both the first direction and the second direction, and

the floating electrodes are arranged at a pitch of the arrangement pitch of the pixel electrodes.

2. The display device comprising according to claim 1 , further comprising:

a driving circuit; and

a plurality of driving electrodes that cross the detection electrodes and that are coupled to the driving circuit.

3. The display device comprising according to claim 1 , wherein the detection electrodes are arranged at a pitch of a natural multiple number of an arrangement pitch of the pixel electrodes in the first direction and/or the second direction in the arrangement plane.

4. The display device comprising according to claim 1 , wherein each of the one or more first slits overlaps and extends along the scanning line or the signal line.

5. A display device comprising:

a display layer including (a) a plurality of pixel electrodes, (b) a scanning line extending in a first direction, and (c) a signal line extending in a second direction crossing the first direction; and

a touch panel including (a) a plurality of detection electrodes on an arrangement plane, each of the detection electrodes including one or more first slits overlapping the scanning line, the signal line, or both the scanning line and the signal line, (b) a group of floating electrodes arranged between the detection electrodes, (c) a plurality of second slits extending in the first direction between the floating electrodes, and (d) a plurality of third slits extending in the second direction between the floating electrodes, each of the second slits communicating with the one or more first slits,

wherein,

the one or more first slits in each of the detection electrodes are disposed in positions substantially corresponding to positions of the second slits or the third slits in the group of the floating electrodes.

6. The display device comprising according to claim 5 , wherein the one or more first slits substantially overlap the scanning lines and/or the signal lines.

7. The display device comprising according to claim 6 , further comprising:

a driving circuit; and

a plurality of driving electrodes that cross the detection electrodes and that are coupled to the driving circuit.

8. The display device comprising according to claim 5 , wherein the detection electrodes are arranged at a pitch of a natural multiple number of an arrangement pitch of the pixel electrodes in the first direction and/or the second direction in the arrangement plane.

9. The display device comprising according to claim 5 , wherein:

the detection electrodes are arranged at a pitch of a natural multiple number of an arrangement pitch of the pixel electrodes in the arrangement plane in the first direction, the second direction, or both the first direction and the second direction, and

the floating electrodes are arranged at a pitch of the arrangement pitch of the pixel electrodes.

10. The display device comprising according to claim 5 , wherein the one or more first slits of the detection electrodes and third slits in the floating electrodes overlap pixels of a same color.

11. A display device comprising:

a display layer including (a) a plurality of pixel electrodes, (b) a scanning line extending in a first direction, and (c) a signal line extending in a second direction crossing the first direction; and

a touch panel including a plurality of detection electrodes on an arrangement plane and a plurality of floating electrodes arranged between the detection electrodes,

wherein,

each of the detection electrodes includes one or more first slits overlapping the scanning line, the signal line, or both the scanning line and the signal line,

each of the one or more first slits is contained within a detection electrode, and

the one or more first slits of the detection electrodes and third slits in the floating electrodes overlap pixels of a same color.

12. The display device comprising according to claim 11 , further comprising:

a driving circuit; and

a plurality of driving electrodes that cross the detection electrodes and that are coupled to the driving circuit.

13. The display device comprising according to claim 11 , wherein the detection electrodes are arranged at a pitch of a natural multiple number of an arrangement pitch of the pixel electrodes in the first direction and/or the second direction in the arrangement plane.

14. The display device comprising according to claim 11 , wherein each of the one or more first slits overlaps and extends along the scanning line or the signal line.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →