Display device
View Patent ↗A display device includes: a display panel including a plurality of pixels arranged in rows and columns; and a touch panel opposed to the display panel, wherein the display panel includes a non-display portion which is a region between neighboring pixels, the touch panel includes: a plurality of first electrode patterns which are formed along a first direction which is one of a row direction and a column direction of the pixels; and a plurality of second electrode patterns which are formed along a second direction which is the other one of the directions, at least a part of the first electrode patterns and at least a part of the second electrode patterns being metal, and the metal parts of the first electrode patterns and the second electrode patterns are present within the non-display portion of the display panel in plan view.
1. A display device comprising:
a display panel including a plurality of pixels arranged in rows and columns; and
a touch panel opposed to the display panel,
wherein the display panel includes a non-display portion which is a region between neighboring pixels,
the touch panel includes: a plurality of first electrode patterns which are formed along a first direction which is one of a row direction of the pixels and a column direction of the pixels; and a plurality of second electrode patterns which are formed along a second direction which is the other one of the row direction of the pixels and the column direction of the pixels, at least a part of the first electrode patterns and at least a part of the second electrode patterns being metal,
the metal part of the first electrode patterns and the metal part of the second electrode patterns are present within the non-display portion of the display panel in plan view,
each of the pixels includes a plurality of sub-pixels which are arranged along the first direction and have different colors,
each of the sub-pixels includes: an upper electrode, a lower electrode, and an organic light-emitting layer formed between the upper electrode and the lower electrode and corresponding to the pixel,
the display panel includes: a bank which defines the organic light-emitting layer and is formed corresponding to the non-display portion; and an auxiliary wire covered with the bank and electrically connected to the upper electrode, and
at least one of (i) the first electrode patterns and (ii) the second electrode patterns is arranged above the auxiliary wire.
2. The display device according to claim 1 ,
wherein each of the first electrode patterns is arranged between the sub-pixels neighboring in the second direction, and
the auxiliary wire and each of the second electrode patterns are arranged between the pixels neighboring in the first direction.
3. The display device according to claim 2 ,
wherein a width between the pixels neighboring in the first direction is greater than a width between the sub-pixels neighboring in the first direction.
4. The display device according to claim 2 ,
wherein each of the sub-pixels includes a transistor for driving the sub-pixel, and
the first electrode patterns are each arranged to overlap a contact hole for connecting the lower electrode with a source electrode or a drain electrode of the transistor, in plan view.
5. The display device according to claim 2 ,
wherein each of the first electrode patterns is a first electrode line which is in a linear shape and has a constant line width,
each of the second electrode patterns is a second electrode line which is in a linear shape and has a constant line width, and
a relationship which is W1−W2<W3−W4 is satisfied where W1 represents a width between the sub-pixels neighboring in the second direction, W2 represents a width of the first electrode line, W3 represents a width between the pixels neighboring in the first direction, and W4 represents a width of the second electrode line.
6. The display device according to claim 5 ,
wherein, where L1 represents a length of the first electrode line, and L2 represents a length of the second electrode line, a relationship which is W2>W4 is satisfied when L1>L2, and a relationship which is W2<W4 is satisfied when L1<L2.
7. The display device according to claim 1 ,
wherein at least one of the first electrode patterns and the second electrode patterns has a wave-like plan view shape.
8. The display device according to claim 7 ,
wherein both of the first electrode patterns and the second electrode patterns have wave-like plan view shapes.
9. The display device according to claim 1 ,
wherein at least one of the first electrode patterns and the second electrode patterns includes: a plurality of transparent electrode patterns each in a rectangular shape and having corners connected with each other; and a metal line, which is the metal part, layered on the transparent electrode patterns, and
the transparent electrode patterns are formed to extend beyond the metal line.
10. The display device according to claim 1 ,
wherein at least one of the first electrode patterns and the second electrode patterns includes: a plurality of transparent electrode patterns each in a rectangular shape; and a metal line, which is the metal part, for connecting corners of the transparent electrode patterns with each other.
11. The display device according to claim 1 ,
wherein the display panel includes a light-blocking portion, and
the non-display portion is the light-blocking portion.
12. The display device according to claim 1 ,
wherein each of the first electrode patterns is a first electrode line which is in a linear shape and has a constant line width,
each of the second electrode patterns is a second electrode line which is in a linear shape and has a constant line width,
a line width of the first electrode line is smaller than a width of the non-display portion in the second direction, and
a line width of the second electrode line is smaller than a width of the non-display portion in the first direction.