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Class 345/211 - Display power source


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter wherein the display elements* have
No. of applications: 1531
Last issue date: 05/24/2012


                  38    
Application No.Application TitleIssue Date
20050190177Current drive circuit and display device using same, pixel circuit, and drive method
A display device including a current drive circuit capable of stably and correctly supplying an intended current to a light emitting element of each pixel without being affected by variations in characteristics of an active element inside the pixel and as a result capab...
09/01/2005
20050184984Display apparatus and control method thereof
A display apparatus including a power supply, a microcomputer that receives electric power from the power supply and controls predetermined internal functional elements, a level change checker that checks whether a voltage level of the electric power is outside a predet...
08/25/2005
20050156924Voltage booster circuit, power supply circuit, and liquid crystal driver
A charge-pump circuit includes: MOS transistors connected in series and having one end to which a system ground power supply voltage is supplied; and first to fifth discharge transistors having one end connected to the system ground power supply voltage and the other en...
07/21/2005
20050156923Voltage booster circuit, power supply circuit, and liquid crystal driver
A charge-pump circuit includes: MOS transistors connected in series and having one end to which a system ground power supply voltage is supplied; and a discharge transistor. The discharge transistor has one end connected to a node which is connected to the MOS transisto...
07/21/2005
20050156922Portable computer and controlling method thereof
A portable computer having a main body and a display panel hingedly attached to the main body, including an open/closed sensor to output open and closed detection signals in response to the display panel being open and closed, respectively; a power supply to supply a dr...
07/21/2005
20050156921Self-configured display power supply
A digital input power rail receives an input voltage for a display. A voltage regulator regulates the input voltage to a start-up voltage during a start-up period. After the start-up period, the voltage regulator regulates the input voltage to a steady-state voltage. Th...
07/21/2005
20050140666Display device using demultiplexer and driving method thereof
Disclosed is a display device using a demultiplexer. The demultiplexer sequentially samples data currents that are multiplexed and applied by a data driver, and holds currents corresponding to the sampled data currents to a plurality of data lines. Since the demultiplex...
06/30/2005
20050134581Charging and communication cable system for a mobile computer apparatus
A charging and communication cable system for a handheld computer system is disclosed. The charging and communication cable system includes a first interface for connecting to the handheld computer system, a second interface for connecting to another computer system, an...
06/23/2005
20050134580Display device
A display device is made up of a transparent porous layer, a colored layer, and a penetrant-moving part. The transparent porous layer is formed from a transparent material and has pores into which a penetrant is penetrable. The colored layer is stacked on one surface of...
06/23/2005
20050116943Vehicle visual display system
A visual display device for vehicles and portable operation is provided, comprising a display arrangement for the display of data and a holding device for securing the display arrangement to the vehicle. Data and/or power may be provided either internally or externally ...
06/02/2005
20050116944Method of driving, electro-optical device, electro-optical device, and electronic apparatus
To make a vertical cross-talk and a vertical stripe pattern invisible. There is provided a method of driving an electro-optical device having a plurality of pixels provided correspondingly to intersections between a plurality of scanning lines and a plurality of data li...
06/02/2005
20050110786Display device
The present invention provides a display device comprising a display having an arrangement of a plurality of pixels, a drive IC for supplying to each pixel of the display data voltage or data current corresponding to a video signal fed from the outside, comparing/calcul...
05/26/2005
20050110787Display apparatus with power saving capability
A power control unit of a display apparatus includes an AC-to-DC converter for receiving an external AC power. A regulator receives a DC output from the converter, and is operable in one of an enabled state of outputting a target DC power when receiving a first level si...
05/26/2005
20050099413Method of resetting a shut down integrated circuit spontaneously and the monitor thereof
A monitor including an integrated circuit with an operating voltage and a control unit for controlling the integrated circuit is provided. The control unit includes a driving unit, a counter, and a resetting unit. The control unit is used for sending out a command to dr...
05/12/2005
20050093772Plasma display panel and driving method thereof
A plasma display panel (PDP) and a method for driving the PDP. An ON/OFF pattern of an externally-inputted image signal is checked to sense a sustained discharge occurring in discharge cells respectively corresponding to scan electrodes included in a particular one of m...
05/05/2005
20050094180Image forming apparatus
A multi-function printer (MFP) has a main control circuit for setting the operation mode of the apparatus to either a normal operation mode or a power-saving operation mode. There are provided a main power supply circuit and an auxiliary power supply circuit for supplyi...
05/05/2005
20050093853Plasma display panel and driving method thereof
Disclosed are a PDP and a driving method thereof. A falling ramp, having the same or greater gradient as that of a falling ramp pulse applied to a Y electrode, is applied to an X electrode in part of a Y ramp falling period during which a falling ramp pulse is applied t...
05/05/2005
20050093804Light emitting device, driving method of light emitting device and electronic device
By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desi...
05/05/2005
20050093802Display device and electronic device
A display device capable of displaying a picture of vivid colors maintaining a good balance of colors and a good balance of light-emitting brightnesses of the EL elements. The widths of the detour wirings supplying current to the power source feed lines are increased fo...
05/05/2005
20050093801Display device using electron source elements and method of driving same
In the case where the number of pixels is increased in a display device making use of electron source elements, a period, in which one pixel is caused to continue to emit light, shortened, and so there is caused a need of applying a high voltage between upper and lower ...
05/05/2005
20050093800Digital micromirror device and method of driving digital micromirror device
A spatial light modulation device capable of displaying a large number of gray scales is provided. The inventors of the present invention proposed a spatial light modulation device having: a first structure in which a switching transistor and an erasure transistor, each...
05/05/2005
20050083324Display apparatus and cellular device
An object of the invention is to provide a display device that allows its useful life to be prolonged without letting the user of the device conscious of changes in the display state of the display device, and the power consumption to be prevented from increasing, and t...
04/21/2005
20050078106Peripheral device including a user interface for controlling a computer system unit optionally attached to the peripheral device
A computer system includes a system unit and a peripheral device connected by an electrical connection. The peripheral device includes a main power switch that turns power off within both the peripheral device and the system unit, together with a drive indicator light t...
04/14/2005
20050078107Energy recovery apparatus and method for plasma display panel
Disclosed are an energy recovery apparatus and method for a plasma display panel. The energy recovery apparatus includes a sustain voltage source for supplying a sustain voltage, a panel capacitor formed equivalently at a discharge cell, a first charging circuit for for...
04/14/2005
20050078105Organic electroluminescent display device
A display device in which charge damage occurring at wiring near the periphery is prevented or reduced, and wiring is facilitated during manufacturing by controlling an angle of an edge part of the wiring near the periphery. A display device includes a substrate, a pixe...
04/14/2005
20050073518Method and system for detecting a power status of a display device
A method for determining a power status includes detecting a current associated with a power source of a display device and determining the power status of the display device in accordance with the current. ...
04/07/2005
20050073517DISPLAY DEVICE WITH A LUMINOUS DISPLAY BASE
A display device includes a display and a display base. The display base includes a housing and a luminous module installed inside the housing for emitting the light. The display includes a first electric connecting port and the display base contains a second electric c...
04/07/2005
20050068311Switching display update properties upon detecting a power management event
Systems and methods provide automatic switching of display update properties such as screen resolution, pixel depth, and refresh rate in response to a power management event. The display update property may be decreased when power is switched from AC power to DC power, ...
03/31/2005
20050062686Circuit for driving light emitting element and current-control-type light-emitting display
A current-control-type light emitting display in which a reverse current can be supplied to a light emitting element without requiring a negative power supply and without being passed through a forward drive section. A first electrode of the light emitting element is co...
03/24/2005
20050062736Gamma voltage generating apparatus
A gamma voltage generating apparatus for reducing the number of parts to simplify a structure thereof is disclosed. The apparatus is operated in various modes such that a brightness value can be changed in correspondence with an external environment. A red gamma voltage...
03/24/2005
20050057555Information processing apparatus
An information processing apparatus of the present invention includes: a body portion having a control device; a display portion; and a power generation portion of a fuel cell. The display portion is connected to the body portion so that it can be opened or closed, or t...
03/17/2005
20050057554Light emission control circuit uniformly and non-uniformly controlling a plurality of light-emitting elements
A booster converter outputs a boosted voltage. A plurality of LEDs emit light of respective colors. The transistors establish or shut connection between the LEDs and a main driving circuit. A variable current circuit feeds a current to drive the LEDs. A PWM control unit...
03/17/2005
20050057553Scan driver and scan driving system with low input voltage, and their level shift voltage circuit
Scan driver and driving system with low input voltage and their level shift circuit are disclosed. The scan driver includes a latch unit, a level shift circuit and a buffer. The latch unit generates a first control signal and a second control signal. The level shift cir...
03/17/2005
20050057551APPARATUS AND METHOD FOR IMAGE FRAME SYNCHRONIZATION
A source frame signal received at a first frame rate is converted to a destination frame signal output at a second frame rate. By adjusting the clock frequency of the clock signal in the destination frame signal, the second frame rate is made to be the same as the first...
03/17/2005
20050057552Matrix display having addressable display elements and methods
A display device including a plurality of display elements (500) arranged in a matrix, each display element including a display pixel (510) coupled to a switch (530), each display element including an addressable latch (540) having an output ...
03/17/2005
20050057556Latch circuit, shift register circuit, logical circuit and image display device operated with a low consumption of power
A CMOS logical circuit comprises two electric current paths each of which has circuits consisting of n-type and p-type transistors. In a circuit consisting of n-type or p-type transistors, one electric current path is provided with a circuit having the same construction...
03/17/2005
20050052447Power supply circuit, voltage conversion circuit, semiconductor device, display device, display panel, and electronic equipment
A power supply circuit which generates a power supply for a circuit which drives a source electrode and a gate electrode provided in a display, includes a first booster circuit which outputs a third potential boosted based on a difference between first and second potent...
03/10/2005
20050052446Spatial-based power savings
Described herein are systems and methods that reduce power consumption for an electronics device that includes a display. Power conservation systems and methods described herein alter video information in one or more inactive portions of a display area such that the alt...
03/10/2005
20050041020Wide temperature range PDLC shutter
A Polymer Dispersed Liquid Crystal (PDLC) capable of consistent performance over a wide temperature range. The PDLC includes electrodes connected to each of the resistive layers, such as ITO layers, of the PDLC. A FET switch couples each electrode to a corresponding cap...
02/24/2005
20050041021Circuit having source follower and semiconductor device having the circuit
When a potential of a power supply line varies according to a flowing current, the gate-source voltage Vgs of a transistor also varies, leading to variations in the constant current between each source follower. In order to solve this problem, a potential Vb of the gate...
02/24/2005
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