Display panel with touch detector, touch panel, and electronic unit
View Patent ↗There are provided a display panel with a touch detector that allows the touch detection electrodes to be less visible, a touch panel, and an electronic unit having the display panel with a touch detector. The display panel with a touch detector includes: a display layer including a plurality of display elements arranged side by side; and an electrode layer alternately segmented into first regions and second regions along a first direction, the electrode layer including a plurality of first slits arranged side by side to extend in a second direction, and a plurality of second slits each allowing an adjacent pair of the plurality of first slits in the second regions to be in communication with one another.
1. A display panel with a touch detector, comprising:
a display layer including a plurality of display elements arranged side by side; and
an electrode layer alternately segmented into touch detection electrode regions and dummy electrode regions along a first direction, the electrode layer including a plurality of electrodes, a plurality of first slits arranged side by side to extend in a second direction, and a plurality of second slits, each of the second slits intersecting with one of the first slits in the dummy electrode region,
wherein a plurality of electrodes are disposed in the touch detection electrode regions and the dummy electrode regions respectively,
the electrode layer is disposed in the touch detection electrode regions, and the electrode layer continues in the second direction, and
each of the first slits is disposed between the adjacent electrodes in the second direction in the dummy electrode regions, and each of the second slits is disposed between the adjacent electrodes in the first direction in the dummy electrode regions.
2. The display panel according to claim 1 , further comprising a wiring layer having a plurality of signal lines extending in the first direction between the adjacent display elements arranged in the second direction, wherein
one of the second slits is provided in a region corresponding to any one of the signal lines.
3. The display panel according to claim 2 , wherein the one of the second slits is provided every predetermined number of the signal lines.
4. The display panel according to claim 2 , wherein the electrode layer further including a plurality of third slits, and each of the third slits intersects with only one of the first slits in the touch detection electrode regions.
5. The display panel according to claim 4 , wherein one of the second slits and one of the third slits are provided in a region corresponding to any one of the signal lines.
6. The display panel according to claim 5 , wherein the third slits adjacent to each other in the first direction are provided at different positions in the second direction.
7. The display panel according to claim 6 , wherein the second slits adjacent to each other in the first direction are provided at different positions in the second direction.
8. The display panel according to claim 6 , wherein the second slits adjacent to each other in the first direction are provided at the same positions in the second direction.
9. The display panel according to claim 6 , wherein
the second slits and the third slits extend in the first direction, and
a width of each of the second slits is equal to a width of each of the third slits.
10. The display panel according to claim 5 , wherein
the third slits adjacent to each other in the first direction are provided at the same positions in the second direction, and
the second slits adjacent to each other in the first direction are provided at the same positions in the second direction.
11. The display panel according to claim 10 , wherein the second slits and the third slits extend in a third direction different from the first direction.
12. The display panel according to claim 10 , wherein
the second slits and the third slits extend in the first direction, and
a width of each of the third slits is larger than a width of each of the second slits.
13. The display panel according to claim 1 , wherein one of the first slits is provided for every predetermined number of the display elements in the first direction.
14. The display panel according to claim 13 , wherein
each of the display elements defines a display pixel including a red display element, a green display element, and a blue display element, and
the first slits are provided at positions corresponding to the blue display elements.
15. The display panel according to claim 1 , wherein
the electrode layer includes a plurality of dummy electrodes defined by the first and second slits, and
the dummy electrodes are electrically floated.
16. The display panel according to claim 1 , further comprising drive electrodes extending in a direction crossing the second direction, wherein
the electrode layer includes detection electrodes including a plurality of electrode patterns defined by the slits in the touch detection electrode regions, and
each of intersections between the detection electrodes and the drive electrodes has capacitance.
17. The display panel according to claim 16 , wherein each of the display elements includes
a liquid crystal layer, and
pixel electrodes provided between the liquid crystal layer and the drive electrodes, or disposed to face the liquid crystal layer with the drive electrodes in between.
18. The display panel according to claim 16 , wherein each of the display elements includes
a liquid crystal layer, and
pixel electrodes disposed to face the drive electrodes with the liquid crystal layer in between.
19. A touch panel comprising:
an electrode layer alternately segmented into touch detection electrode regions and dummy electrode regions along a first direction, the electrode layer including a plurality of electrodes, a plurality of first slits arranged side by side to extend in a second direction, and a plurality of second slits, each of the second slits intersecting with one of the first slits in the dummy electrode region,
wherein a plurality of electrodes are disposed in the touch detection electrode regions and the dummy electrode regions respectively,
the electrode layer is disposed in the touch detection electrode regions, and the electrode layer continues in the second direction, and
each of the first slits is disposed between the adjacent electrodes in the second direction in the dummy electrode regions, and each of the second slits is disposed between the adjacent electrodes in the first direction in the dummy electrode regions.
20. An electronic unit including a display panel with a touch detector, and a control section that performs operation control using the display panel with a touch detector, the display panel comprising:
a display layer including a plurality of display elements arranged side by side, and
an electrode layer alternately segmented into touch detection electrode regions and dummy electrode regions along a first direction, the electrode layer including a plurality of electrodes, a plurality of first slits arranged side by side to extend in a second direction, and a plurality of second slits, each of the second slits intersecting with one of the first slits in the dummy electrode region,
wherein a plurality of electrodes are disposed in the touch detection electrode regions and the dummy electrode regions respectively,
the electrode layer is disposed in the touch detection electrode regions, and the electrode layer continues in the second direction, and
each of the first slits is disposed between the adjacent electrodes in the second direction in the dummy electrode regions, and each of the second slits is disposed between the adjacent electrodes in the first direction in the dummy electrode regions.
21. The display panel according to claim 1 , wherein a layout of red, green, and blue sub pixels, of the electrodes and of the slits in the touch detection electrode regions is as same as that in the dummy electrode regions.
22. The display panel according to claim 1 , wherein each of the first slits is disposed so as to be on a center portion of a pixel with a specific color.