1
Inukai Kazutaka, Osame Mitsuaki, Iwabuchi Tomoyuki: Method of driving el display device. Semiconductor Energy Lab, March 6, 2002: EP1184833-A2 (57 worldwide citation)

A method of driving an EL display device in which pseudo contours are difficult to be seen is provided. A method of driving an EL display device in which a plurality of pixels, each having a first TFT, a second TFT, a third TFT, and an organic EL element. are formed has the following: n + m display ...


2
Inukai Kazutaka, Iwabuchi Tomoyuki: Light emitting device with current control. Semiconductor Energy Lab, July 31, 2002: EP1227467-A2 (27 worldwide citation)

A light emitting device is provided, in which a change of luminance of an OLED is suppressed and a desired color display can be stably performed even if an organic light emitting layer is somewhat deteriorated or an environmental temperature is varied. Separately from a pixel portion for displaying ...


3
Inukai Kazutaka, Osame Mitsuaki, Iwabuchi Tomoyuki: Method for driving el display. Semiconductor Energy Lab, May 24, 2002: JP2002-149113 (19 worldwide citation)

PROBLEM TO BE SOLVED: To provide a method for driving an electroluminescent(EL) display which makes false contours hardly visible.SOLUTION: A method is presented for driving the EL display having a plurality of pixels each of which has a first thin film transistor(TFT), a second TFT, a third TFT and ...


4
Inukai Kazutaka, Iwabuchi Tomoyuki: Light-emitting device. Semiconductor Energy Lab, October 18, 2002: JP2002-304155 (12 worldwide citation)

PROBLEM TO BE SOLVED: To provide a light-emitting device capable of performing stably desired color display by suppressing change in luminance of an OLED(organic light- emitting diode), even if an organic light emitting layer is degraded slightly and an ambient temperature is changed.SOLUTION: A pix ...


5
Arai Yasuyuki, Iwabuchi Tomoyuki, Yamazaki Shunpei: Light-emitting device and method of fabricating the same. Semiconductor Energy Lab, January 29, 2004: JP2004-031335 (8 worldwide citation)

PROBLEM TO BE SOLVED: To stabilize brightness and prevent deterioration in use of an active matrix driving type display device in which TFTs are arranged in a matrix form, by completely repairing a defective portion through application of a reverse-direction voltage and by repairing a short circuit ...


6
Miyagawa Keisuke, Iwabuchi Tomoyuki, Nozawa Akira, Yoshida Yasunori, Kimura Teruhiro: Drive circuit for semiconductor display device, method for driving the same and electronic apparatus. Semiconductor Energy Lab, July 7, 2005: JP2005-181917 (6 worldwide citation)

PROBLEM TO BE SOLVED: To obtain always optimum display quality from a low temperature to a high temperature, as to a drive circuit and a drive method for a semiconductor display device.SOLUTION: The temperature, operation state, etc. of the semiconductor display device are measured and the operating ...


7
Iwabuchi Tomoyuki, Ueno Tatsuro: Display device and method for inspecting the same. Semiconductor Energy Lab, July 4, 2007: EP1804229-A1 (4 worldwide citation)

An object is to provide a display device, in a part of which a monitor light emitting element is provided and in which an anode and a cathode of the monitor light emitting element are prevented from short-circuiting in an early stage and over time by using a circuit which corrects a voltage or a cur ...


8
Miyake Hiroyuki, Iwabuchi Tomoyuki, Fukumoto Ryota: Display device and driving method of the same. Semiconductor Energy Lab, April 27, 2006: JP2006-113564 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide a display device which can perform a clear display by increasing contrast in display and a driving method thereof by solving a problem that a light emitting element slightly emits light by an off current of a thin film transistor connected in series to the light emit ...


9
Miyake Hiroyuki, Fukumoto Ryota, Iwabuchi Tomoyuki: Light emitting device and driving method thereof. Semiconductor Energy Lab, March 9, 2006: JP2006-065308 (4 worldwide citation)

PROBLEM TO BE SOLVED: To solve a problem wherein, in a driving method of applying a reverse bias voltage, capacitance occurs due to a stacked structure of a conductor, an insulator and a conductor or due to a structure of a TFT, and this capacitance prevents normal operation.SOLUTION: The invention ...


10
Osame Mitsuaki, Anzai Aya, Iwabuchi Tomoyuki, Yamazaki Shunpei: Light emitting device. Semiconductor Energy Lab, October 2, 2003: JP2003-280556 (3 worldwide citation)

PROBLEM TO BE SOLVED: To provide light emitting elements or a light emitting device having both practical luminance and stability.SOLUTION: The light emitting device is provided with light emitting elements in which an electric charge injection transport medium and a light emitting medium that inclu ...