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Class 345/63 - Intensity control


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter in which the selective electrical control
No. of patents: 825
Last issue date: 04/16/2013


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NumberTitleIssue Date
7227596Colour defects in a display panel due to different time response of phosphors
The luminous elements of the three colours red, green and blue of a plasma video display have different time responses. Therefore, a coloured trail/edge appears behind and in front of the edges of a moving object. In order to reduce the disturbing character of such ...
06/05/2007
7221335Image display method and device for plasma display panel
Disclosed is a PDP image display method and device for dividing an image of each frame displayed on a PDP corresponding to an input video signal into subfields, each subfield corresponding to a bit that represents one of a plurality of luminance weights, combining l...
05/22/2007
7212178Method and apparatus for driving a display panel
The invention provides for a method and display apparatus (10) having driving circuitry for driving a display panel (24) having a plurality of addressable discharge cells (26) driven by display pulses (DP), including the steps of applying data p...
05/01/2007
7211962Planar light source device, method of driving the same and display apparatus having the same
A light source device includes a light emitting body, a pair of main electrodes and a pair of sub electrodes. The light emitting body includes discharge spaces disposed substantially parallel to each other. The main electrodes are disposed at opposite end portions o...
05/01/2007
7212177Method of driving a plasma display apparatus
A method of driving a PDP apparatus to sufficiently suppress the background light emission and improve the dark room contrast, in which first electrodes and second electrodes are arranged adjacently by turns, a first display line is formed between one side of the se...
05/01/2007
7209182False contour correcting apparatus and method
A false contour correcting apparatus is capable of removing a false contour in an image based on a digital image signal while avoiding such a side effect caused by false contour correction where noises negatively effecting the display occur on a screen. Therefore, i...
04/24/2007
7209100Method for driving display panel
Disclosed herein is a method for driving a display panel that provides excellent halftone brightness at low power consumption. A unit display period of a video signal is constituted by a plurality of divided display periods. In each of the divided display periods, t...
04/24/2007
7209152Signal processor for multiple gradations
A signal processor for multiple gradations for carrying out coding by replacing an input image signal with a plurality of subfields, comprising a main path for generating a primary color signal having a first number of gradations, a sub-path for generating a primary...
04/24/2007
7206002Image processing apparatus and method that avoid generation of moire
An image processing apparatus includes a spatial filtering unit which applies spatial filtering to input image data to generate filtered image data such that the spatial filtering provides a broader dynamic range for outputs than for inputs, and a high-resolution co...
04/17/2007
7205975Display apparatus and method
A display apparatus and method according to which ambient temperature of the display apparatus is measured, and a backlight driving voltage of the display apparatus is controlled based on the measured temperature. A display apparatus includes a backlight, a temperat...
04/17/2007
7206279OFDM receiving apparatus and method of demodulation in OFDM receiving apparatus
An apparatus for receiving an OFDM modulated signal includes: an A/D converter converting the received signal to a digital signal; a quadrature demodulator performing quadrature detection of the digital signal and converting the digital signal to a base-band signal;...
04/17/2007
7199780Field sequential driving type liquid crystal display apparatus capable of increasing brightness while suppressing irregularity, and its driving method
In a sequential driving method for time-divisionally displaying a plurality of color signals in respective ones of sub-frames forming one frame in a liquid crystal display apparatus including a plurality of data lines, gate lines, and liquid crystal pixels each incl...
04/03/2007
7196680Drive apparatus and method for plasma display panel
The present invention provides a drive apparatus and method for a plasma display panel, in which the drive apparatus and method improve contrast and prevent mis-discharge. According to the drive method, in a reset interval of a first sub-field, a voltage having an i...
03/27/2007
7193596Display apparatus with reduced noise emission and driving method for display apparatus
A display apparatus has a clock generating circuit, a drive waveform generating circuit, and a display panel. The drive waveform generating circuit is used to generate a drive waveform by using a clock from the clock generating circuit, and the display panel is used...
03/20/2007
7193587Plasma display panel with color space transformation device
A plasma display panel with color space transformation device is described. The plasma display panel with color space transformation device has a digital board, a display control circuit and a color plasma display panel. The digital board has a color space transform...
03/20/2007
7193592Display device
A display device includes self-luminous elements arrayed to form a display screen, and a driving circuit which causes drive currents to flow in the self-luminous elements according to pixel signals. Particularly, the driving circuit is configured to restrict the dri...
03/20/2007
7190333Video coding method and system for a plasma display panel
The present invention relates to a coding method intended to improve the performance of GCC coding based on the temporal centre of gravity of displayed video codes. According to the invention, the number of video levels that can be selected in order to implement the...
03/13/2007
7187348Driving method for plasma display panel
A driving method for a plasma display panel realizes a high quality display at low power consumption while restraining a false contour. After a selective discharge for setting discharge cells to a light-on state or a light-off state is generated in one subfield of N...
03/06/2007
7187347Plasma display panel and method of driving the same
A plasma display panel includes (a) first and second substrates facing each other, (b) a plurality of first electrodes formed on the first substrate and extending in parallel with one another, (c) a plurality of second electrodes formed on the second substrate and e...
03/06/2007
7187349Method of displaying video images on a plasma display panel and corresponding plasma display panel
The present invention relates to a method of displaying video images on a plasma display panel. The invention is applicable in plasma display panels. According to the invention, in order to achieve contouring movement compensation, the subscans are divided into two ...
03/06/2007
7184053Method for processing video data for a display device
The invention is related to a new kind of pre-processing for plasma display panel control. The plasma display technology has the drawback of a reduced grey scale portrayal. This is due to the fact that contrarily to CRTs where luminance is approximately quadratic to...
02/27/2007
7180514Image display apparatus and control method thereof
An image display apparatus includes a display panel having an electron source, an acceleration electrode for accelerating electrons emitted from the electron source and phosphors for emitting light by collision of electrons accelerated by the acceleration electrode,...
02/20/2007
7180482Method for driving plasma display panel
A method for driving a plasma display panel in which any one of a scanning electrode and a sustaining electrode is shared by neighboring display cells interposed therebetween. At least one condition selected from the group consisting of a voltage of a sustaining pul...
02/20/2007
7180241Plasma display apparatus
A plasma display apparatus minimizing the occupying area of the driving boards in the chassis base by using an integrated driving board capable of driving scan electrodes sustain electrodes. A plasma display panel includes: a plurality of first electrodes (sustain e...
02/20/2007
7180481Plasma display and its driving method
A PDP display apparatus driving method for performing multi-level gradation display by constituting one frame of a plurality of subfields assigned different weights, wherein in a subfield in which a relative luminance ratio corresponds to a lowest weight, display is...
02/20/2007
7176878Backlight dimming and LCD amplitude boost
Embodiments of the present invention generally provide m Methods and apparatus for reducing power consumption of backlit displays are described. Power consumption is reduced by dimming backlighting by a first scale factor and boosting pixel values by a second scale ...
02/13/2007
7176868Liquid crystal display apparatus and liquid crystal display driving method
A display apparatus having a display pixel unit including a plurality of pixels arranged in a matrix, a first driving circuit for outputting a control signal to the pixels to turn the pixels ON, the control signal depending on gray-scale information of display data,...
02/13/2007
7176853Panel driving method and apparatus for representing gradation by mixing address period and sustain period
A panel driving method for driving pixels of a panel. The pixels are classified into a plurality of groups and the pixels of one of the plurality of groups are addressed and sustain-discharged before the pixels of another one of the plurality of groups are addressed...
02/13/2007
7176851Panel display apparatus and method for driving a gas discharge panel
When applying sustain pulses to each discharge cell in a gas discharge panel, a pulse of the opposite polarity is briefly applied immediately before the leading edge of each sustain pulse. Or, the absolute voltage of each sustain pulse is set higher during a certain...
02/13/2007
7176856Display device and display panel drive method
The present invention is a display device and display panel drive method that allow a more rapid select operation to be stably implemented by increasing the discharge probability of selective discharge. The display device comprises an address part that sequentially ...
02/13/2007
7176854Device and method for driving plasma display panel
Disclosed is a PDP driving circuit and a driving method thereof. A first switch is coupled between a Y electrode of a panel capacitor and a positive polarity terminal of a voltage source supplying a voltage Vs/2, a second switch is coupled between the positive polar...
02/13/2007
7173580Method for optimizing brightness in a display device and apparatus for implementing the method
The invention relates to a method for optimizing brightness in a display device having a plurality of luminous elements corresponding to the pixels of a picture, wherein the time duration of a video frame or video field is divided into a plurality of sub fields duri...
02/06/2007
7173638Monitor
A monitor is disclosed, in which R/G/B signals provided from a video source are compensated to adapt to the color reproduction of the monitor, thereby obtaining the best picture quality. The monitor includes a video source for outputting one video signal, a color co...
02/06/2007
7173581Plasma display apparatus
An ALIS system PDP apparatus in which a reduction in the variation in luminance due to ringing has been reduced is disclosed. In an ALIS system PDP apparatus, X (first) electrodes and Y (second) electrodes are arranged in such a way that the X electrodes and the Y e...
02/06/2007
7170472Apparatus and method for driving plasma display panel
An apparatus and method for driving a plasma display panel wherein an initializing discharge can be weakened to lower a dark room brightness and an initialization time can be shortened to permit a single scanning. In the apparatus, a sensing device senses an electri...
01/30/2007
7170471Plasma display apparatus and method of driving a plasma display panel
An interlace-type PDP is driven by an improved driving method so as to achieve a greater operating margin, higher resolution, and higher brightness. The interlace-type PDP is driven using odd and even frames in such a manner that the cells are grouped into cell grou...
01/30/2007
7170477Image reproducing method, image display apparatus and picture signal compensation device
When reproducing an image by a display apparatus having a plurality of pixels, in an average signal level operation circuit is performed an operation to obtain an average signal level which is an average level of all the pixel signals in a picture signal including a...
01/30/2007
7167146Plasma display panel driving method and apparatus for reducing address power consumption
A method of driving a plasma display panel and an apparatus thereof wherein a switching frequency of a data drive IC is reduced to decrease power consumption required for an addressing operation. In the method and apparatus, a plurality of write sub-fields at which ...
01/23/2007
7167190Method of driving electro-optical apparatus, drive circuit for electro-optical apparatus, electro-optical apparatus, and electronic apparatus
The invention reduces power consumption when, for example, a mobile personal computer is in a power-saving mode or when a cellular phone is in a wait mode, in an electro-optical apparatus, such as a liquid crystal display of the subfield drive type used as a display...
01/23/2007
7164395Method for driving plasma display panel
Method for driving a plasma display panel, wherein an address reinforcement period is added between an address period and a sustain period, and a scan voltage Vw of positive polarity and a third DC voltage Zdc3 are applied, for inducing floating charges in di...
01/16/2007
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