Touch-sensing OLED display with tilted emitters
First Claim
Patent Images
1. A touch-sensitive display, comprising:
- a transmissive panel defining the touch surface;
a first set of OLED emitters forming display pixels;
a second set of OLED emitters configured to emit light via an adjacent cell into the transmissive panel for propagation therein via total internal reflection, each of the second set of OLED emitters comprise a top surface proximate with a bottom surface of the transmissive panel, a bottom surface opposite the top surface, a first side surface proximate to the adjacent cell, and a second side surface opposite the first side surface,wherein the top, the bottom, and the second side surfaces comprise a reflective material, thereby preventing the emitted light from being emitted through the top surface and emitted into the transmissive panel only via the first side surface; and
a set of detectors configured to receive light from the second set of OLED emitters after the light has propagated inside the transmissive panel via total internal reflection;
wherein the first set and the second set of OLED emitters are arranged on the same substrate.
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Abstract
A touch-sensitive display, comprising a transmissive panel defining the touch surface, a first set of OLED emitters forming display pixels, a second set of OLED emitters configured to emit light via an adjacent cell into the transmissive panel for propagation therein via total internal reflection, and a set of detectors configured to receive light from the second set of OLED emitters after the light has propagated inside the transmissive panel via total internal reflection. The first set and the second set of OLED emitters are arranged on the same substrate.
554 Citations
15 Claims
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1. A touch-sensitive display, comprising:
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a transmissive panel defining the touch surface; a first set of OLED emitters forming display pixels; a second set of OLED emitters configured to emit light via an adjacent cell into the transmissive panel for propagation therein via total internal reflection, each of the second set of OLED emitters comprise a top surface proximate with a bottom surface of the transmissive panel, a bottom surface opposite the top surface, a first side surface proximate to the adjacent cell, and a second side surface opposite the first side surface, wherein the top, the bottom, and the second side surfaces comprise a reflective material, thereby preventing the emitted light from being emitted through the top surface and emitted into the transmissive panel only via the first side surface; and a set of detectors configured to receive light from the second set of OLED emitters after the light has propagated inside the transmissive panel via total internal reflection; wherein the first set and the second set of OLED emitters are arranged on the same substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of producing a touch sensitive display panel, comprising:
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providing a transparent substrate; providing a matrix of image pixels and emitter pixels at a surface of the substrate; providing at least one of the emitter pixels with an adjacent cell, configured to allow light to be emitted from the emitter pixel to the transparent substrate via the adjacent cell, the at least one of the emitter pixels comprise a top surface proximate with a bottom surface of the transmissive panel, a bottom surface opposite the top surface, a first side surface proximate to the adjacent cell, and a second side surface opposite the first side surface, wherein the top, the bottom, and the second side surfaces comprise a reflective material, thereby preventing the emitted light from being emitted through the top surface and emitted into the transmissive panel only via the first side surface; providing a cover sheet over the pixel matrix; and sealing the cover sheet to the substrate.
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15. A method of producing a touch sensitive display panel, comprising:
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providing a carrier sheet; providing a matrix of image pixels and emitter pixels on the carrier sheet; providing at least one of the emitter pixels with an adjacent cell, the at least one of the emitter pixels comprise a top surface proximate with a bottom surface of the transmissive panel, a bottom surface opposite the top surface, a first side surface proximate to the adjacent cell, and a second side surface opposite the first side surface, wherein the top, the bottom, and the second side surfaces comprise a reflective material, thereby preventing the emitted light from being emitted through the top surface and emitted into the transmissive panel only via the first side surface; providing a transparent substrate over the image pixels and the emitter pixels; and sealing the transparent substrate to the carrier sheet; wherein the adjacent cell is configured to allow light to be emitted from the emitter pixel to the transparent substrate via the adjacent cell.
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Specification