Display device including a display region where a touch sensor is provided
First Claim
1. A display device, comprising:
- picture element electrodes; and
a first circuit that includes;
a first electrode,a field effect transistor, anda switch, whereinthe first electrode is provided on a first substrate including a display surface of a display panel, and connected to a common electrode such that the first electrode overlaps the field effect transistor without any portion of any of the picture element electrodes being located between the first electrode and the field effect transistor,the field effect transistor is provided on a second substrate in such a manner that the first electrode is provided in a back channel side of the field effect transistor so as to be separated from the field effect transistor, the field effect transistor including a gate terminal, a first drain/source terminal, and a second drain/source terminal, the gate terminal being connected to a first wiring to which a reset pulse, which is a pulsing voltage, is applied,the switch includes a terminal connected to the second drain/source terminal, and another terminal connected to a second wiring from which an output of the field effect transistor is provided,when the reset pulse applied to the first wiring is applied to the gate terminal while the first electrode is moved towards the field effect transistor, the field effect transistor causes a voltage of the second drain/source terminal to change,the gate terminal is provided on the second substrate, andthe field effect transistor further includes;
a gate insulating film provided on the gate terminal,a semiconductor layer provided on the gate insulating film such that the first drain/source terminal and the second drain/source terminal are separated from each other on a surface of the semiconductor layer,a first metal wiring including a terminal connected to the first drain/source terminal and another terminal connected, in a contact hole defined in the gate insulating film, to the first wiring, anda second metal wiring separated from the first metal wiring and including a terminal provided on the second drain/source terminal and another terminal connected to the switch.
1 Assignment
0 Petitions
Accused Products
Abstract
A first electrode (62c) is provided on a first substrate (2) having a display surface of a display panel, and connected to a common electrode (com). A field effect transistor (62b) is provided on a second substrate (1) in such a manner that the first electrode (62c) is provided in a back channel side of the field effect transistor (62b) so as to be separated from the field effect transistor (62b). The field effect transistor (62b) has a gate terminal and a first drain/source terminal each of which is connected to a first wiring (Vrstn) to which a voltage for reset is to be applied. A switch (62a) has a terminal connected to a second drain/source terminal (62bs), and the other terminal connected to a second wiring (Vom) from which an output of the field effect transistor (62b) is provided.
12 Citations
12 Claims
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1. A display device, comprising:
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picture element electrodes; and a first circuit that includes; a first electrode, a field effect transistor, and a switch, wherein the first electrode is provided on a first substrate including a display surface of a display panel, and connected to a common electrode such that the first electrode overlaps the field effect transistor without any portion of any of the picture element electrodes being located between the first electrode and the field effect transistor, the field effect transistor is provided on a second substrate in such a manner that the first electrode is provided in a back channel side of the field effect transistor so as to be separated from the field effect transistor, the field effect transistor including a gate terminal, a first drain/source terminal, and a second drain/source terminal, the gate terminal being connected to a first wiring to which a reset pulse, which is a pulsing voltage, is applied, the switch includes a terminal connected to the second drain/source terminal, and another terminal connected to a second wiring from which an output of the field effect transistor is provided, when the reset pulse applied to the first wiring is applied to the gate terminal while the first electrode is moved towards the field effect transistor, the field effect transistor causes a voltage of the second drain/source terminal to change, the gate terminal is provided on the second substrate, and the field effect transistor further includes; a gate insulating film provided on the gate terminal, a semiconductor layer provided on the gate insulating film such that the first drain/source terminal and the second drain/source terminal are separated from each other on a surface of the semiconductor layer, a first metal wiring including a terminal connected to the first drain/source terminal and another terminal connected, in a contact hole defined in the gate insulating film, to the first wiring, and a second metal wiring separated from the first metal wiring and including a terminal provided on the second drain/source terminal and another terminal connected to the switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification