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US 12,271,233 B2Granted
Touch panel
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsKoji Kusunoki, Hiroyuki Miyake, Kazunori Watanabe
Life of this patent
Estimating the term…
Abstract
To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.
Claims12
A display device comprising:
- a first housing;
- a second housing;
- a display panel, the display panel comprising a first region overlapping with the first housing, a second region overlapping with the second housing, and a third region provided between the first region and the second region and configured to bend inwards;
- a hinge connecting the first housing and the second housing;
- a first flexible printed circuit electrically connected to the display panel, the first flexible printed circuit being provided at a first side;
- a second flexible printed circuit electrically connected to a touch sensor, the second flexible printed circuit being provided at an opposite side of the first side when seen from a direction perpendicular to the display panel when the third region of the display panel is not bent;
- a first substrate having flexibility;
- a first insulating layer over the first substrate;
- a first conductive layer over the first insulating layer;
- a second insulating layer over the first conductive layer;
- a semiconductor layer over the second insulating layer;
- a second conductive layer over and electrically connected to the semiconductor layer;
- a third conductive layer electrically connected to a fourth conductive layer, the fourth conductive layer being configured to be one electrode of a display element;
- a third insulating layer covering a side surface of the fourth conductive layer;
- a first adhesive layer over the third insulating layer;
- the touch sensor over the first adhesive layer;
- a second adhesive layer over the touch sensor;
- and
- a layer comprising an organic insulating material over the second adhesive layer,
- wherein, in an opened state of the display device, the first region, the second region, and the third region are visible, and
- wherein, in a folded state of the display device, the first region, the second region, and the third region are not visible.
18 more elements
A display device comprising:
- a first housing;
- a second housing;
- a display panel, the display panel comprising a first region overlapping with the first housing, a second region overlapping with the second housing, and a third region provided between the first region and the second region and configured to bend inwards;
- a hinge connecting the first housing and the second housing;
- a first flexible printed circuit electrically connected to the display panel, the first flexible printed circuit being provided at a first side;
- a second flexible printed circuit electrically connected to a touch sensor, the second flexible printed circuit being provided at an opposite side of the first side when seen from a direction perpendicular to the display panel when the third region of the display panel is not bent;
- a first substrate having flexibility;
- a first insulating layer over the first substrate;
- a first conductive layer over the first insulating layer;
- a second insulating layer over the first conductive layer;
- a semiconductor layer over the second insulating layer;
- a second conductive layer electrically connected to the semiconductor layer;
- a third conductive layer over and electrically connected to a fourth conductive layer, the fourth conductive layer being configured to be one electrode of a display element;
- a third insulating layer covering a side surface of the fourth conductive layer;
- a first adhesive layer over the third insulating layer;
- the touch sensor over the first adhesive layer;
- a second adhesive layer over the touch sensor;
- and
- a second substrate comprising an organic insulating material over the second adhesive layer,
- wherein, in an opened state of the display device, the first region, the second region, and the third region are visible, and
- wherein, in a folded state of the display device, the first region, the second region, and the third region are not visible.
18 more elements
A display device comprising:
- a first housing;
- a second housing;
- a display panel, the display panel comprising a first region overlapping with the first housing, a second region overlapping with the second housing, and a third region provided between the first region and the second region and configured to bend inwards;
- a hinge connecting the first housing and the second housing;
- a first flexible printed circuit electrically connected to the display panel, the first flexible printed circuit being provided at a first side;
- a second flexible printed circuit electrically connected to a touch sensor, the second flexible printed circuit being provided at an opposite side of the first side when seen from a direction perpendicular to the display panel when the third region of the display panel is not bent;
- a first substrate having flexibility;
- a first insulating layer over the first substrate;
- a first conductive layer over the first insulating layer;
- a second insulating layer over the first conductive layer;
- a semiconductor layer over the second insulating layer;
- a second conductive layer over and electrically connected to the semiconductor layer;
- a third conductive layer electrically connected to a fourth conductive layer, the fourth conductive layer being configured to be one electrode of a display element;
- a third insulating layer covering a side surface of the fourth conductive layer;
- a first organic layer over the third insulating layer;
- the touch sensor over the first organic layer;
- a second organic layer over the touch sensor;
- and
- a third organic layer comprising an organic insulating material over the second organic layer,
- wherein, in an opened state of the display device, the first region, the second region, and the third region are visible, and
- wherein, in a folded state of the display device, the first region, the second region, and the third region are not visible.
18 more elements
Dependencies are inferred from the claim text.