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US Patent 7230608 - OLED display and touch screen
US Patent Issued on June 12, 2007
Estimated Patent Expiration Date:
April 23, 2024Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
April 23, 2024Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractAn OLED display and touch screen system, including: a) a substrate; b) an OLED display area including an array of individually addressable OLEDs formed on the substrate; and c) a touch screen including at least one OLED light emitter formed on the substrate and a plurality of light sensors formed on the substrate across the display area from the light emitter, each of the light sensors having an elongated surface area with a first relatively short dimension and a second relatively long dimension and being positioned adjacent to an edge of the display area, with the relatively long dimension positioned substantially perpendicular to the adjacent edge of the display area, and optics located around the display area above the light emitter and the light sensors for directing light emitted from the light emitter across the display area to the surface area of the light sensors. The system is advantageous in that it enables a thin, light, easily manufacturable display having an integrated optical touch screen having reduced weight, size, and cost, a greater reliability and improved sensitivity and resolution. | InventorAssigneeApplicationNo. 10830648 filed on 04/23/2004US Classes:345/173, Touch panel345/76, Electroluminescent345/175, Including optical detection715/757, Virtual 3D environment345/157Cursor mark position control deviceField of Search345/156, DISPLAY PERIPHERAL INTERFACE INPUT DEVICE345/173, Touch panel345/174, Including impedance detection345/175, Including optical detection345/176, Transparent substrate having light entrapment capability (i.e., waveguides)345/177, Including surface acoustic detection345/76, Electroluminescent345/77, Brightness or intensity control345/78, Having compensating pulse345/79, Field period polarity reversal345/80, Driving means integral to substrate345/82, Solid body light emitter (e.g., LED)178/18.01, Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry)178/18.04, Acoustical (e.g., vibration, ultrasonic, etc.)178/18.09, Optical178/18.08, Having shield178/18.02, Error correction178/18.05, Resistive178/18.03, Writing digitizer pad178/18.06, Capacitive178/18.07, Inductive178/19.03, Capacitive or inductive stylus178/19.05, Light pen178/19.01, Writing digitizer stylus178/19.04, Pressure stylus178/19.02Acoustical stylusExaminersPrimary: Hjerpe, RichardAssistant: Lesperance, Jean Attorney, Agent or FirmUS Patent References5196836, Touch panel displayIssued on: 03/23/1993 Inventor: Williams6690393, 3D environment labelling Issued on: 02/10/2004 Inventor: Heron , et al.6762747Coordinate input detection device and method for electronic blackboard Issued on: 07/13/2004 Inventor: Fujioka, et al. International ClassG09G 5/00 |
