1
Hiroyasu Yamada, Masaharu Shioya: Electroluminescent display device and a driving method thereof. Casio Computer, Frishauf Holtz Goodman Langer & Chick P C, November 23, 1999: US05990629 (543 worldwide citation)

A controller stores image signals Sp represented as binary values for every unit of frame. The controller divides one frame into a plurality of sub-frames representing an image by image data of two gradation levels, in accordance with respective figures of the stored image signals Sp for one frame. ...


2
Hiroyasu Yamada, Tomoyuki Shirasaki, Yoshihiro Kawamura: Display apparatus. Casio Computer, Frishauf Holtz Goodman Langer & Chick P C, June 6, 2000: US06072450 (147 worldwide citation)

Selection transistors and drive transistors are formed in individual pixel areas on a substrate. Cathode electrodes which reflect visible light are formed above the selection transistors and the drive transistors so as to cover the pixel areas, with flat insulation films between the cathode electrod ...


3
Ichiro Kono, Masaharu Shioya, Hiroyasu Yamada: Method of driving display device. Casio Computer, Frishauf Holtz Goodman Langer & Chick P C, February 20, 2001: US06191764 (74 worldwide citation)

A phototransistor having a non-linear light vs. conductivity characteristics and an organic electroluminescent layer are sandwiched by a pair of electrodes, a predetermined voltage is applied to the pair of electrodes, and address light is irradiated on a phototransistor to let a current flow in the ...


4
Masaharu Shioya, Tomoyuki Shirasaki, Hiroyasu Yamada: Display device for performing display operation in accordance with signal light and driving method therefor. Casio Computer, Frishauf Holtz Goodman Langer & Chick P C, July 18, 2000: US06091382 (72 worldwide citation)

A display device includes an EL element for signal light which is based on the segment matrix drive scheme and causes a plurality of areas to emit signal light containing light in a wavelength range other than the visible range, a photoconductive layer which generates carriers upon incidence of sign ...


5
Tomoyuki Shirasaki, Hiroyasu Yamada, Reiji Hattori: Display panel and display panel driving method. Casio Computer, Frishauf Holtz Goodman & Chick P C, January 8, 2008: US07317429 (53 worldwide citation)

A display panel includes an optical element which has a pair of electrodes and exhibits an optical operation corresponding to an electric current flowing between the electrodes, and a switch circuit which supplies a memory current having a predetermined current value to a current line during a selec ...


6
Tomoyuki Shirasaki, Norihiko Kaneko, Hiroyasu Yamada: Carrier injection type organic electro-luminescent device which emits light in response to an application of a voltage. Casio Computer, Frishauf Holtz Goodman Langer & Chick, November 10, 1998: US05834894 (46 worldwide citation)

A carrier-injection type organic electroluminescent device includes, provided on a substrate, a transparent anode electrode, and a hole transport layer containing hole-transporting poly(N-vinylcarbazole) and 2,5-bis(1-naphthyl)-oxadiazole, and 3-(2'-benzothiazoyl)-7-diethylaminocoumarin as a fluores ...


7
Hiroyasu Yamada, Masaharu Shioya, Tomoyuki Shirasaki: Display device and display driving method. April 10, 2001: US06215462 (44 worldwide citation)

An optical address section, a display section and light waveguides are provided on a substrate. The light waveguides are located between the optical address section and the display section. The optical address section includes first light emission elements, while the display section includes data el ...


8
Tomoyuki Shirasaki, Hiroyasu Yamada, Masaharu Shioya, Tetsushi Yoshida, Manabu Takei, Tetsuo Muto, Yasuhiro Daiku: Scatter control member for organic electroluminescent light source for passing light with or without scattering depending upon an incident angle. Casio Computer, Frishauf Holtz Goodman Langer & Chick P C, February 15, 2000: US06025894 (43 worldwide citation)

An organic electroluminescence device is placed as a back light of a liquid crystal display panel. The organic electroluminescence device is constituted by a front electrode (#112) having transparency to visible light, a rear electrode (#113) having reflection to visible light and an organic electro ...


9
Hiroyasu Yamada: Photoelectric conversion system. Casio Computer, Frishauf Holtz Goodman Langer & Chick, October 24, 1995: US05461419 (22 worldwide citation)

A plurality of photosensors are formed on an insulation substrate in a matrix fashion. Each of the photosensors includes a photoelectric conversion semiconductor, first and second gate electrodes, a drain electrode and a source electrode. A signal line is connected to each drain electrode. After pre ...


10
Hiroshi Matsumoto, Hiroyasu Yamada, Nobuyuki Yamamura, Shinichi Shimomaki, Naohiro Konya, Kyuya Baba: Thin film transistor having memory function and method for using thin film transistor as memory element. Casio Computer, Frishauf Holtz Goodman & Woodward, March 23, 1993: US05196912 (21 worldwide citation)

A memory element is formed of a thin film transistor. The thin film transistor has a semiconductor layer, a source electrode electrically connected to the semiconductor layer, a drain electrode electrically connected to the semiconductor layer and formed separately from the source electrode, a gate ...