Patents Examined by Jeffrey A Parker
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Patent number: 8044938Abstract: To provide a thin input device capable of preventing foreign materials from entering into a gap between an input panel and a chassis and thus preventing malfunctioning of the input panel. A first detection base 3 is made of a thin material and has a planar size larger than a second detection base 4. A chassis 8 includes a side portion 9 opposed to a side surface of a touch panel 2 and a supporting portion 10 opposed to a bottom surface. The touch panel 2 is received in the inside of the chassis 8 in a state where an inner surface 3a of the first detection base 3 is opposed to a top surface 9a on an input side of the side portion 9 of the chassis so as to cover a gap 14 between the side portion 9 of the chassis 8 and a side surface of the touch panel 2 with the first detection base 3 from the input side of the chassis 8. The inner surface 3a of the first detection base 3 is attached to the top surface 9a of the side portion 9.Type: GrantFiled: July 3, 2007Date of Patent: October 25, 2011Assignee: Alps Electric Co., Ltd.Inventors: Takeshi Watanabe, Takayuki Chida
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Patent number: 8031143Abstract: A display device includes; an insulating substrate, a display element which defines a display region and includes an organic light emitting layer which is formed on the insulating substrate, a first circuit board disposed parallel with a first side of the insulating substrate, a reference voltage pad formed on a circumference of the display region and which is electrically connected to the display element, and a first flexible member which includes a first part which adheres to the first circuit board and a second part connected to the reference voltage pad along a second side of the face of the insulating substrate.Type: GrantFiled: July 9, 2007Date of Patent: October 4, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Si-duk Sung, Byung-sik Koh
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Patent number: 8031137Abstract: When a current frame of a video expresses only grayscales less than a reference grayscale, a sustain pulse applying period and a holding period are alternately provided in a sustain period of at least one subfield having a weight greater than a reference weight in all of the discharge cells of a plasma display panel, thereby reducing power consumption in the plasma display panel. In the sustain pulse applying period, sustain pulses alternately having a first voltage and a second voltage less than the first voltage are applied in opposite phases to first electrodes and second electrodes of the plasma display panel. In the holding period, the first electrodes and/or the second electrodes are maintained at the first voltage.Type: GrantFiled: July 12, 2007Date of Patent: October 4, 2011Assignee: Samsung SDI Co., Ltd.Inventor: Tae-Kyoung Kang
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Patent number: 8031144Abstract: An image display is provided with a display area including pixels, each including illuminating means. A control circuit turns the illuminating means of the pixels on and off. A capacitance is provided having a first node connected to an input terminal of the control circuit. A display signal voltage generation circuit generates display signal voltages for the pixels, while a pixel drive voltage generation circuit generates pixel drive voltages for the pixels. In addition, a connecter is provided for connecting either one of the display signal voltages or the pixel drive voltages to a second node of the capacitance.Type: GrantFiled: September 21, 2007Date of Patent: October 4, 2011Assignee: Hitachi, Ltd.Inventors: Hajime Akimoto, Shigeyuki Nishitani, Shinichi Komura, Toshihiro Sato, Hiroshi Kageyama, Yoshiteru Shimizu
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Patent number: 8018403Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: GrantFiled: July 6, 2007Date of Patent: September 13, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anazai, Yu Yamazaki, Yoshifumi Tanada
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Patent number: 8018426Abstract: Disclosed herein is an electronic device including: a solar cell configured to be inferior in absorption efficiency for light having a predetermined wavelength; and a reflective display configured to carry out displaying by reflecting light having the predetermined wavelength and allow transmission of light other than light having the predetermined wavelength. In the electronic device, the reflective display is disposed on an outside face of a device package, and the solar cell is disposed on a backside of the reflective display.Type: GrantFiled: July 3, 2007Date of Patent: September 13, 2011Assignee: Sony CorporationInventors: Yoshihito Ishibashi, Kentaro Odaka, Shoji Nagai, Fumio Kubono
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Patent number: 8013824Abstract: A sequence control unit includes a voltage input/output unit to receive a driving voltage, and to output the driving voltage after a delay time. A memory stores an output time corresponding to the driving voltage, a clock generating unit generates a clock, a clock counter counts the clock in response to a counting signal, and a sequence controller supplies the counting signal corresponding to the output timing to the clock counter from the memory. The sequence controller receives the number of clock cycles or time associated with the number of clock cycles counted by the clock counter as clock counting information, and controls the delay time output of the driving voltage according to the clock counting information. A driving method for driving the sequence control unit is disclosed, and the sequence control unit may be included in a liquid crystal display device.Type: GrantFiled: September 20, 2007Date of Patent: September 6, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hong Sig Chu, Jae Min Ha
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Patent number: 8009137Abstract: An image display apparatus includes: a lighting unit which includes a lamp unit, and illuminates light onto a display screen; a power supply unit which supplies electric power to drive the lamp unit in the lighting unit; a main circuit unit which outputs a brightness control signal to control brightness of the lighting unit, and controls the power supply unit; and a constant voltage generator which is provided between the main circuit unit and the power supply unit, and controls magnitude of the brightness control signal which is output from the main circuit unit, to generate a constant voltage, wherein, by detecting over-current flowing in the lamp unit, the main circuit unit outputs the brightness control signal to apply a corresponding voltage to the lamp unit according to a form of the over-current, or activates the constant voltage generator so that the brightness control signal can be controlled by the constant voltage generator.Type: GrantFiled: September 21, 2007Date of Patent: August 30, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-cheol Heo
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Patent number: 8004484Abstract: A display device, light receiving method, and information processing device are provided. The display device including a plurality of sub-pixels forming a pixel as a unit of display resolution of an image, the plurality of sub-pixels being arranged in a delta arrangement, a display circuit for displaying the image, a light receiving sensor for detecting light, the display circuit and the light receiving sensor being disposed in each of the sub-pixels, wherein display signal lines for supplying a display signal to the sub-pixels are wired to all of the sub-pixels in a same direction, two or more the light receiving sensors arranged in a direction perpendicular to the wiring direction of the display signal lines are connected to each other, and a received light signal obtained from the two or more the light receiving sensors connected to each other is output from a light receiving circuit.Type: GrantFiled: September 18, 2007Date of Patent: August 23, 2011Assignee: Sony CorporationInventors: Mitsuru Tateuchi, Go Yamanaka, Tsutomu Harada, Takeru Tamayama, Masafumi Matsui
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Patent number: 7995002Abstract: A tiled, passive-matrix, EL display, including two or more EL tiles, each EL tile including an array of rows and columns of light-emitting elements, each light-emitting element being formed from a light-emitting layer that is sandwiched between an orthogonal array of row and column electrodes wherein each of the two or more EL tiles further include at least one row driver; at least one column driver for operating in conjunction with each of the at least one row drivers to control the flow of electrons between the row and column electrodes to control the emission of light from each of the light-emitting elements, with a first exception that when the boundary between the two tiles is to be illuminated, then the number of rows of simultaneously illuminated rows of light-emitting elements within one tile is less than the predetermined number.Type: GrantFiled: September 19, 2007Date of Patent: August 9, 2011Assignee: Global OLED Technology LLCInventors: Michael E. Miller, Andrew D. Arnold, John F. Hamilton, Jr.
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Patent number: 7986294Abstract: A method for driving a planar light source device is provided. The planar light source device includes (a) a plurality of planar light source units to light a color LCD device from the back, each planar light source unit including a red LED, a green LED, and a blue LED; and (b) a driving circuit to perform ON/OFF control of the red LED, the green LED, and the blue LED included in each planar light source unit on the basis of pulse-width modulation. The method includes adjusting respective pulse-width modulation unit clocks CLR-unit, CLG-Unit, and CLB-Unit in each planar light source unit to long or short by increasing or decreasing the number of frequency division cycles of a system clock in the driving circuit.Type: GrantFiled: February 13, 2007Date of Patent: July 26, 2011Assignee: Sony CorporationInventor: Kazuo Kojima
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Patent number: 7982713Abstract: A multi-pointing method using a magnetic field is provided. When one or more pointing devices that generate magnetic fields move or rotate, locations and directions of rotation of the one or more pointing devices are sensed based on patterns of magnetic fields generated by the one or more pointing devices and changes in the patterns.Type: GrantFiled: July 5, 2007Date of Patent: July 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hyok-sung Choi, Su-hyun Kim, Seong-kook Shin
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Patent number: 7982694Abstract: A display apparatus includes a display panel having a plurality of display pixels two-dimensionally arrayed display pixels having pixel drive circuits and light emitting devices near at intersections of a plurality of scan lines and a plurality of data lines laid out in a row direction and in a column direction so as to be orthogonal to each other, a scan driver which applies a scan signal to the scan lines at a predetermined timing, a data driver which supplies a gradation signal corresponding to display data to the display pixels via the data lines, and a pair of power source drivers which apply a supply voltage to both ends of a plurality of power supply lines laid out in the column direction at a predetermined timing.Type: GrantFiled: March 13, 2007Date of Patent: July 19, 2011Assignee: Casio Computer Co., Ltd.Inventors: Jun Ogura, Tsuyoshi Ozaki
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Patent number: 7978175Abstract: Various embodiments provide an enhanced mobile computing experience by providing an input device in a mobile electronic device that is configured to accurately and quickly re-center a button or other user interface while providing a sensation of enhanced tactile feedback to a user. The biasing force of a magnetic re-centering mechanism is employed to overcome frictional forces acting on the button during its travel forwards and backwards and tilting to insure that the button is returned quickly and accurately to a resting position. The magnetic re-centering mechanism has a low profile, and permits the input device and the mobile electronic device within which the input device is disposed to have small form factors.Type: GrantFiled: November 23, 2007Date of Patent: July 12, 2011Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventor: Timothy James Orsley
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Patent number: 7978179Abstract: A computer keyboard is set up a with full-scale programmable hotkeys for users. The user easily defines words/word sequences he/she frequently uses for word processing. By depressing a dedicated key, the corresponding predefined word/word sequence is immediately displayed to the user.Type: GrantFiled: November 25, 2007Date of Patent: July 12, 2011Assignee: International Business Machines CorporationInventor: Fernando Daniel Pedrazzoli
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Patent number: 7965280Abstract: A touch screen controller (1A) includes circuitry (2B) for generating a pen touch detection signal (PENTOUCH) having a first level if a touch point (Q) of a touch screen assembly (30,31) including first (30) and second (31) resistive screens is detected, and generating a second level of the pen touch detection signal if a touch point is not detected. A controller (41A) includes circuitry (58A) that generates an interrupt signal (IRQ) to be sent to a host processor (3) in response to the first level of the pen touch detection signal and for resetting the interrupt signal (IRQ) in response to the second level of the pen touch detection signal if the second level is received before a convert command is received from the host processor. The interrupt signal (IRQ) represents an interrupt service request for a convert command from the host processor (3). Resetting of the interrupt signal (IRQ) has the effect of canceling the interrupt service request.Type: GrantFiled: March 14, 2007Date of Patent: June 21, 2011Assignee: Texas Instruments IncorporatedInventor: Ing-Yih Wang
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Patent number: 7952556Abstract: A liquid crystal display device capable of improving quality of moving images is provided. Each LED (Light Emitting Diode) block is turned ON according to a response of a liquid crystal corresponding to a light emitting region and the brightest gray level is detected for each of red (R), green (G) and blue (B) of an input video signal in every frame period and an input video signal is converted into a value obtained by being multiplied by an upper limit gray level and then by being divided by the brightest gray level and a gray level voltage corresponding to the converted value is applied to each data electrode and, during a lighting period of LED blocks, each LED block is made to flash at a duty corresponding to a rate of the brightest gray level to the upper limit gray level.Type: GrantFiled: July 9, 2007Date of Patent: May 31, 2011Assignee: NEC LCD Technologies, LtdInventor: Nobuaki Honbo
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Patent number: 7928972Abstract: The present invention provides a display device having an illuminance detection circuit. The illuminance detection circuit includes: a photosensor which changes an optical current in response to illuminance of an external light; a capacitor which discharges a charge when the optical current flows in the photosensor; a comparator which compares a voltage at one end of the capacitor and a comparison reference voltage; a switching circuit which is connected to one end of the capacitor and charges the capacitor in response to a level of an output signal of the comparator; and a selection circuit which applies either a first voltage or a second voltage to the other end of the capacitor in response to the level of the output signal of the comparator.Type: GrantFiled: November 21, 2007Date of Patent: April 19, 2011Assignee: Hitachi Displays, Ltd.Inventors: Hideo Sato, Teruaki Saito, Shigeyuki Nishitani
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Patent number: 7903059Abstract: A lighting emitting display, a pixel circuit and a driving method thereof. The pixel circuit includes a driving transistor, a capacitor and a LED. The capacitor receives a first supply voltage and is coupled to a gate of the driving transistor. A cathode of the LED receives a second supply voltage. During a pre-charge period, the gate and the drain of the driving transistor are coupled to an anode of the LED, the source of the driving transistor is coupled to a charging voltage. The source of the driving transistor receives a data signal and the drain and gate of the driving transistor are coupled to each other during a programming period. The source of the driving transistor is coupled to receive the first supply voltage and the drain of the driving transistor is coupled to the anode of the LED during a display period.Type: GrantFiled: March 13, 2007Date of Patent: March 8, 2011Assignee: Himax Technologies LimitedInventors: Yu-Wen Chiou, Chin-Tien Chang, Hong-Ru Guo
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Patent number: 7893894Abstract: An organic light emitting display and a driving circuit therefor to prevent a variation in scanning signals supplied to scan lines due to coupling capacitance caused by scan lines and data lines that intersect each other and to prevent a variation in the scanning signals due to a leakage current from an output terminal. The display and driving circuit include first, second, and third scan drivers each electrically coupled to each of first, second and third clock lines to control output signals to scan lines. The display and driving circuit may include multiple scan drivers and multiple clock lines, which correspond to a total number of scan lines.Type: GrantFiled: September 19, 2007Date of Patent: February 22, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Hyungjung Lee, Kyunghoon Chung