Flexible touch screen display
First Claim
Patent Images
1. A touch sensitive active matrix display device, the device comprising:
- a display having a viewing surface; and
a touch sensitive sensor integrated with and under said display, said touch sensitive sensor comprising a flexible substrate, a lower conductive layer on said flexible substrate and an upper conductive layer separated from said lower conductive layer by a spacer arrangement; and
whereinsaid touch sensor is operable by touching said viewing surface of said display; and
wherein;
said display comprises electronic paper display medium and has a backplane comprising an active matrix, said active matrix having an array of field-effect transistors comprising an organic semiconductor, said transistors configured to control said display;
said backplane is disposed directly onto said upper conductive layer with a dielectric isolation layer between said upper conductive layer and electroactive layers of said backplane, with said dielectric isolation layer providing electrical insulation between said upper conductive layer and said electroactive layers of said backplane; and
said display and touch sensitive sensor in combination have a flexibility greater than needed for functionality of operation of said touch sensitive sensor such that said display and touch sensitive sensor in combination is bendable as a whole.
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Abstract
A touch sensitive active matrix display device is provided. The device includes a display fabricated on a first flexible substrate, said display having a viewing surface. The device further includes a touch sensitive sensor including a second flexible substrate, under said display. The touch sensor is operated by touching said viewing surface of said display, and said combined display and touch sensitive sensor is flexible.
25 Citations
19 Claims
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1. A touch sensitive active matrix display device, the device comprising:
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a display having a viewing surface; and a touch sensitive sensor integrated with and under said display, said touch sensitive sensor comprising a flexible substrate, a lower conductive layer on said flexible substrate and an upper conductive layer separated from said lower conductive layer by a spacer arrangement; and
whereinsaid touch sensor is operable by touching said viewing surface of said display; and
wherein;said display comprises electronic paper display medium and has a backplane comprising an active matrix, said active matrix having an array of field-effect transistors comprising an organic semiconductor, said transistors configured to control said display; said backplane is disposed directly onto said upper conductive layer with a dielectric isolation layer between said upper conductive layer and electroactive layers of said backplane, with said dielectric isolation layer providing electrical insulation between said upper conductive layer and said electroactive layers of said backplane; and said display and touch sensitive sensor in combination have a flexibility greater than needed for functionality of operation of said touch sensitive sensor such that said display and touch sensitive sensor in combination is bendable as a whole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification