OLED display and touch screen
Patent 7230608 Issued on June 12, 2007. Estimated Expiration Date: 
April 23, 2024. Estimated 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.
April 23, 2024. Estimated 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.Patent ReferencesTouch panel display 3D environment labelling Coordinate input detection device and method for electronic blackboard Patent #: 6762747 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 deviceExaminersPrimary: Hjerpe, RichardAssistant: Lesperance, Jean Attorney, Agent or FirmInternational ClassG09G 5/00AbstractAn 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.Field of SearchDISPLAY PERIPHERAL INTERFACE INPUT DEVICETouch panel Including impedance detection Including optical detection Transparent substrate having light entrapment capability (i.e., waveguides) Including surface acoustic detection Electroluminescent Brightness or intensity control Having compensating pulse Field period polarity reversal Driving means integral to substrate Solid body light emitter (e.g., LED) Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry) Acoustical (e.g., vibration, ultrasonic, etc.) Optical Having shield Error correction Resistive Writing digitizer pad Capacitive Inductive Capacitive or inductive stylus Light pen Writing digitizer stylus Pressure stylus Acoustical stylus | |
