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| Number | Title | Issue Date |
| 7961204 | Method for representing gray scale on plasma display panel in consideration of address light A gray-scale representation method for a plasma display panel, which method includes arranging, in time sequence, a plurality of subfields each having a brightness weight and achieving gray-scale representation by a combination of the subfields, each subfield includ... | 06/14/2011 |
| 7929001 | Display device and control methods therefor A display device, includes: a display panel comprising a plurality of pixels; a signal controller which receives an n+k bit first image signal to divide one frame into 2k number of sub frames and generates a non-image signal according to an upper k most s... | 04/19/2011 |
| 7453478 | Address generation in a light modulator A light modulator includes a control unit configured to receive an image input signal, and an array having a plurality of pixels arranged in a plurality of rows. The control unit is configured to provide a first address associated with the image input signal to the ... | 11/18/2008 |
| 7453477 | Driving device for a display panel An improved driving device for a display panel. In the display panel, pixel cells serving as pixels are positioned in a plurality of display lines. The driving device drives the display panel according to pixel data derived from an input image signal. The display li... | 11/18/2008 |
| 7443405 | Method for representing gray scale on plasma display panel in consideration of address light A gray-scale representation method for a plasma display panel, which method includes arranging, in time sequence, a plurality of subfields each having a brightness weight and achieving gray-scale representation by a combination of the subfields, each subfield includ... | 10/28/2008 |
| 7420571 | Method for processing a gray level in a plasma display panel and apparatus using the same A system and method for processing a gray level in a display device performs a random error diffusion operation on the video data using a first random coefficient value and a random dithering operation on the error-diffused video data using a second random coefficie... | 09/02/2008 |
| 7420576 | Display apparatus and display driving method for effectively eliminating the occurrence of a moving image false contour A display apparatus displaying gray scale by using a subfield method has a gain control circuit, a sub gain control circuit, and an error diffusion circuit. The gain control circuit has the number of gray scale levels of an input signal and outputting a first interm... | 09/02/2008 |
| 7408527 | Light emitting device driving method and projection apparatus so equipped A projection system is provided with a controller equipped to drive light emitting devices of a light source of the projection system in a manner that enhances the operational life of the light emitting devices, the ability to provide peak white, and/or finer gray s... | 08/05/2008 |
| 7403213 | Boundary dispersion for artifact mitigation A method and system providing boundary dispersion to pixel values displayed on a binary spatial light modulator to reduce temporal contouring artifacts. Pixel code values are offset from a nominal value when displayed on the SLM to disperse a large bit transition fo... | 07/22/2008 |
| 7391391 | Display apparatus A display apparatus divides each frame period of an input image signal into a plurality of subframes and selects the subframes according to a gray-scale level of the input signal, to display a gray-scale image. The display apparatus alternately employs two sets of t... | 06/24/2008 |
| 7369144 | Method and device for correcting the rotation of a video display A method for displaying a video image on a display screen by a scanning of the display screen along lines inclined by a first angle with respect to a reference direction by at least one electron beam modulated by a modulation signal. The method includes the steps of... | 05/06/2008 |
| 7365767 | Apparatus for driving plasma display panel and method for displaying pictures on plasma display panel An apparatus for driving a plasma display panel and a method for processing pictures of a plasma display panel. An input video signal is converted into sub-field data. It is determined whether address consumption power of the sub-field data is high. When the address... | 04/29/2008 |
| 7362336 | Four color digital cinema system with extended color gamut and copy protection A color display system including a display device for four or more visible color primaries and a processor for controlling the four or more color primaries to selectively render portions of an image or image sequence such that visually equivalent colors displayed in... | 04/22/2008 |
| 7352375 | Driving method of light emitting device A method of driving a light emitting device in which a plurality of pixels having a light emitting element are formed, characterized by including: setting j display periods (where j is a natural number) to appear in one frame period, each of the j display periods co... | 04/01/2008 |
| 7339557 | Display apparatus A display apparatus has a display unit having a matrix of multiple pixels, a divider to divide a field of a digital input video signal to be supplied to the display unit into a specific number of subfields, a memory storing a look-up table to be used by the divider ... | 03/04/2008 |
| 7327373 | 3D dither algorithm A four-time resolution refinement of 3D-dither algorithm is provided in this present invention. A 4×2 pixel-block is treated as an observed unit in this present invention, which includes two 2×2 pixel-blocks. In order to eliminate moving lines and dithered edges, ... | 02/05/2008 |
| 7317464 | Pulse width modulated spatial light modulators with offset pulses In some embodiments, a display system includes a spatial light modulator including at least one pixel, a pixel source including pixel data corresponding to the pixel, a memory circuit connected to the pixel source and configured to store a pixel value corresponding ... | 01/08/2008 |
| 7304656 | Device for digital display of a video image The present invention relates to a device for digital display of a video image using time-division modulation. This device is intended to display a video image during a video frame comprising a plurality of consecutive subfields distributed within at least two separ... | 12/04/2007 |
| 7304621 | Display apparatus, source driver and display panel An organic EL display apparatus includes: a display panel on which a plurality of pixel sections are provided; source drivers provided with pixel drivers, which includes current drivers for supplying drive currents to the pixel sections, registers for latching data ... | 12/04/2007 |
| 7292209 | System and method of driving an array of optical elements A system and/or method for controlling a display array without the use of row and column drivers. The display elements within the system are configured to maintain an active address signal in response to a received signal containing serially encoded display settings... | 11/06/2007 |
| 7286104 | Method and device for gamma correction A display device, such as an electroluminescent display device, includes a matrix of pixels, each pixel being driven by a drive pulse that is pulse width modulated. The width of the drive pulse is controlled by a gamma correction device, in which gamma correction in... | 10/23/2007 |
| 7283113 | Method and apparatus for driving liquid crystal display A method and apparatus of driving a liquid crystal display device that is adaptive for preventing a deterioration of picture quality. More specifically, a method of driving a liquid crystal display includes dividing input data into most significant bit data and leas... | 10/16/2007 |
| 7256756 | Semiconductor device for driving a current load device and a current load device provided therewith In a D/I conversion section of the semiconductor device for driving a light emission display device, a precharge circuit is provided at the rear of each 1-output D/I conversion section. A precharge signal PC is input into the precharge circuit. The D/I conversion se... | 08/14/2007 |
| 7256755 | Display apparatus and display driving method for effectively eliminating the occurrence of a moving image false contour A display apparatus displaying gray scale by using a subfield method has a main path, a sub path, a switch circuit, a motion region detection circuit, a first judging circuit, a level detection circuit, a motion detection correction circuit, and a second judging cir... | 08/14/2007 |
| 7233342 | Time and voltage gradation driven display device To provide a display device which is capable of multi-gradation display without complicating the structure of a D/A converter circuit. Of m bit digital video data inputted from the external, upper n bit data is used as voltage gradation information and lower (m−n)... | 06/19/2007 |
| 7224375 | Method and device for noise reduction in a pulse-width controlled image display device The invention relates to a method and a device for noise reduction in a pulse-width controlled image display device. A monitoring of whether the brightness of several sequential image points is brighter than a given brightness threshold value occurs. If not the case... | 05/29/2007 |
| 7209152 | Signal 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 |
| 7202843 | Driving circuit of a liquid crystal display panel and related driving method A method for driving a liquid crystal display (LCD) panel includes receiving continuously a plurality of frame data, generating a plurality of data impulses for each pixel every frame period according to the frame data, and applying the data impulses to a liquid cry... | 04/10/2007 |
| 7202847 | Voltage modulated driver circuits for electro-optic displays A method and system for applying addressing voltages to pixels of a display involves receiving input data. The input data includes an indication of an addressing voltage impulse to be applied to a pixel via an electrode. One or more voltage sources are selected, to ... | 04/10/2007 |
| 7193594 | Display device An object of the present invention is to provide a display device which enables multi-gray scale display without complicating the structure of D/A converter circuit. The measure taken to achieve the object is to use n bit of information among m bit digital vi... | 03/20/2007 |
| 7187392 | Method of driving electro-optical device, electro-optical device, and electronic apparatus The invention enhances gradation characteristics and realizes higher quality in a picture, in the context of subfield driving using a pixel provided therein with a memory. A method of driving an electro-optical device that divides a predetermined period of ti... | 03/06/2007 |
| 7184034 | Display device To provide a display device capable of allowing a light emitting element to emit light with a constant luminance while being free of an influence of deterioration over time and capable of accurate gradation display and high-speed writing of signal current to each pi... | 02/27/2007 |
| 7176948 | Method, apparatus and computer program product for controlling LED backlights and for improved pulse width modulation resolution A method for driving an LED backlight device using pulse width modulation with an additional timer to manage the power consumption, thermal output, and lighting level of the device with improved resolution. ... | 02/13/2007 |
| 7176863 | Method and apparatus for a flat panel display having reduced power consumption A flat panel display is described having a matrix of liquid crystals, wherein the liquid crystals have a common node. A pair of voltages that are applied to the common node help determine the rms voltages that are applied to the liquid crystals. The pair of voltages... | 02/13/2007 |
| 7161608 | Digital system and method for displaying images using shifted bit-weights for neutral density filtering applications Disclosed herein are visual display systems and methods capable of having shifted bit-weights in neutral density filtering (NDF) applications. In one embodiment, a method (200) of displaying an image comprises transmitting light through an optical filter (... | 01/09/2007 |
| 7148868 | Liquid crystal display A liquid crystal display is provided, which includes: a liquid crystal panel assembly including a plurality of pixels connected to a plurality of gate lines and a plurality of data lines; a signal controller for processing image data, the signal controller including... | 12/12/2006 |
| 7145536 | Liquid crystal display device An object of the present invention is to provide a small-sized active matrix type liquid crystal display device that may achieve large-sized display, high precision, high resolution and multi-gray scales. According to the present invention, gray scale display... | 12/05/2006 |
| 7142223 | Mixed 2D and 3D de-interlacer A de-interlacing methodology generates frames from interlaced video signals by incorporating data from multiple fields into an interpolation-based de-interlacing process. Pixels directly above and below a blank pixel location and pixels immediately before and after ... | 11/28/2006 |
| 7129920 | Method and apparatus for reducing the visual effects of nonuniformities in display systems A method is provided for compensating for output nonuniformity on a display. The method comprises characterizing the display. The method further includes creating a set of data tables wherein one table provides data for compensation along vertical axes of the displa... | 10/31/2006 |
| 7119813 | Variable bit field encoding A compact image element encoding format selectively allocates a bit field within the format to alternately encode either multi-bit alpha resolution or increased color resolution. This encoding technique may be advantageously used to allocate encoding bits to model s... | 10/10/2006 |
