Apparatus and method for reducing the width of the frame in display device utilizing an inter-substrate connecting material
A display device is provided, including a first substrate including a first basement, a scanning line extending along the first direction, a drive circuit connected to the scanning line, a first pad and a second pad arranged along a second direction between a first edge of the first basement and the drive circuit, a second substrate including a second basement includes a first surface opposing the first substrate and spaced from the first substrate and a second surface, and a detection electrode located on the second surface, and including a hole which penetrates between the first surface and the second surface, and a connecting material provided through the hole to electrically connect the first pad and the detection electrode to each other.
1. A display device comprising:
a first substrate including a first basement, a first scanning wiring group and a second scanning wiring group each extending along a first direction and arranged along a second direction crossing the first direction in a display area which displays images, a first shift register of a scanning line driver circuit connected to the first scanning wiring group, a second shift register of the scanning line driver circuit connected to the second scanning wiring group and arranged to be spaced from the first shift register at an interval along the second direction, a first pad provided between the first shift register and the second shift register, and a third pad,
a second substrate including a second basement comprising a first surface opposing the first substrate and spaced from the first substrate and a second surface on an opposite side to the first surface, and a first detection electrode located on the second surf ace, and comprising a first hole which penetrates to the first surface from the second surface; and
a first connecting material provided through the first hole to electrically connect the first pad and the first detection electrode to each other, wherein
the first pad and the third pad are arranged along the second direction, and
the second shift register is located between the first pad and the third pad,
the first basement has a first edge extending in the second direction, the second basement has a first edge extending in the second direction, the first edge of the first basement opposed to the first edge of the second basement,
the scanning line driver circuit is located along the first edge of the first basement,
the first hole is located between the first edge of the second basement and the scanning line driver circuit in the first direction in plan view, and
the first scanning wiring group has four scanning lines, and the second scanning wiring group has four scanning lines.
2. The display device of claim 1 , wherein the first substrate comprises either one of a buffer circuit connected to each of four scanning lines included in the first scanning wiring group and a logical circuit which selects one of the four scanning lines based on an output signal from the first shift register.
3. The display device of claim 1 , wherein
the first substrate further comprises a second pad,
the first pad and the third pad are located in a first non-display area on an outer side of the display area, the second pad is located in the second non-display area on the opposite side to the first non-display area across the display area, and
the first pad and the second pad are located on a same straight line parallel to the first direction.
4. The display device of claim 3 , wherein the second substrate further comprises
a second detection electrode located on the second surface, the first detection electrode and the second detection electrode being arranged along the second direction, and a second hole which penetrates to the first surface from the second surface, and
a second connecting material provided through the second hole to electrically connect the second pad and the second detection electrode to each other.
5. The display device of claim 1 , wherein
the first substrate further comprises a first wiring line connected to the first pad and a first terminal connected to the first wiring line,
the third pad is located closer to the first terminal than the first pad, and
the first wiring line detours around between the third pad and the second shift register.
6. The display device of claim 1 , wherein
the first substrate comprises a wiring group each wiring line of which extends along the second direction and is arranged along the first direction,
the wiring group detours around between the first pad and the first shift registers and between the first pad and the second shift register, and
an innermost wiring line of the wiring group, which is closest to the display area, is located on a same straight line which connects a first output terminal of the first shift register and a second output terminal of the second shift register between the first shift register and the second shift register, and extends along the second direction.
7. The display device of claim 1 , wherein an interval between the first pad and the first shift register is different from an interval between the first pad and the second shift register.