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| Number | Title | Issue Date |
| 8184136 | Image display device provided with multiple light sources emitting different colors to display color images in color sequential display method An image display device is provided with multiple light sources 101, 102 and 103, and a display element 100. Control is performed on a period in which the display element 100 displays each color and on emission of the light sources 101... | 05/22/2012 |
| 8179407 | Method of driving a display apparatus, and display apparatus and timing controller for performing the method A method of driving a display apparatus for an embodiment comprises a light source module divided into a plurality of light-emitting blocks to provide light to a display panel, a local dimming driving part driving the light-emitting blocks, and a timing controller c... | 05/15/2012 |
| 8174545 | Mitigation of temporal PWM artifacts A system and method for reducing pulse width modulation contouring artifacts. Each input intensity value is translated to at least one non-binary bit pattern for display. Many of the input intensity values are translated to at least two alternate non-binary bit patt... | 05/08/2012 |
| 8149253 | Display, timing controller and data driver for transmitting serialized multi-level data signal The present invention relates to a display, a timing controller and a data driver for transmitting a serialized multi-level data signal, and more particularly to a display, a timing controller and a data driver for transmitting a serialized multi-level data signal f... | 04/03/2012 |
| 8149252 | Duty cycle calculation and implementation for solid state illuminators A display uses x illuminator systems to produce x primary colors and y overlap colors, which are combinations of primary colors, to illuminate a spatial light modulator in a display system. A first set of n duty cycles for the x primary colors over a frame is provid... | 04/03/2012 |
| 8134581 | Controlled gap states for liquid crystal displays The present invention relates to a bistable matrix-addressable display element comprising a substrate, a bistable electrically modulated imaging layer having a reflection maximum, at least one conductor, and at least one field-spreading layer between said bistable e... | 03/13/2012 |
| 8111271 | Gray scale drive sequences for pulse width modulated displays Methods, apparatus, and systems for generating drive sequences for pulse width modulated displays are described. A pulse width modulated signal that includes a drive sequence of temporal segments that are activated and deactivated to produce a desired gray scale. Th... | 02/07/2012 |
| 8098265 | Hierarchical multicolor primaries temporal multiplexing system This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display syste... | 01/17/2012 |
| 8077189 | Drive circuit A drive circuit of the present invention is a drive circuit for driving a display element in accordance with grayscale information, which circuit outputs a drive waveform controlled through (i) plural-stepped voltage amplitude modulation and (ii) a pulse width modul... | 12/13/2011 |
| 8063922 | Liquid crystal display device A control circuit changes the ratio of an illumination period to a non-illumination period in a frame period of a backlight according to a gradation level in the one frame period of an image displayed on a liquid crystal panel in such a manner that the higher the gr... | 11/22/2011 |
| 8044984 | Methods for driving an OLED panel A method for driving an organic light emitting display (OLED) panel having a plurality of organic light emitting diodes is provided. The organic light emitting diodes are coupled to a plurality of segment lines and a plurality of common lines in a matrix structure. ... | 10/25/2011 |
| 8040363 | Organic light emitting display with user brightness control and method of driving the same An organic light emitting display capable of controlling brightness responsive to a user request. The display includes a brightness controller for controlling the brightness of a display region. The brightness controller includes a first look up table for storing wi... | 10/18/2011 |
| 7999832 | Controlled gap states for liquid crystal displays The present invention relates to a bistable matrix-addressable display element comprising a substrate, a bistable electrically modulated imaging layer having a reflection maximum, at least one conductor, and at least one field-spreading layer between said bistable e... | 08/16/2011 |
| 7999833 | Deinterleaving transpose circuits in digital display systems The present invention provides a method and apparatus of converting a stream of pixel data in space and time into a stream of bitplane data. In particular, the present invention converts the pixel data stream according to a predetermined output format. The apparatus... | 08/16/2011 |
| 7973810 | Display 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, a... | 07/05/2011 |
| 7948505 | Method for reducing temporal artifacts in digital video systems The present invention provides an image signal processor, comprising: (a) an input circuit for receiving and/or holding an image signal of N-bit binary data word, where N is a positive integer; (b) a data converter converting at least M-bit data of binary data into ... | 05/24/2011 |
| 7944459 | Light-emitting device, driving circuit, driving method, electronic apparatus, and image forming apparatus A light-emitting device includes a plurality of light-emitting elements, each emitting light with a light amount according to a driving signal, a storage unit that stores first gray-scale data for assigning a gray-scale value of each of the plurality of light-emitti... | 05/17/2011 |
| 7936364 | Maintaining balance in a display In one embodiment, the present invention includes a method of measuring a duration difference between a video frame and a corresponding modulation frame; and determining whether to change a duration of a future modulation frame based on the duration difference. The ... | 05/03/2011 |
| 7903130 | Driving method for increasing gray level The present invention discloses a driving method for increasing gray level, wherein the PWM mode is added into the FRM mode, and the PWM mode is implemented with the common drive circuit; the section of the horizontal synchronous signal of a frame interval is divide... | 03/08/2011 |
| 7884839 | Method and system for image processing for spatial light modulators A method of enhancing the gray scale resolution of a PWM system. The method includes defining an N-bit PWM sequence with a length of 2N−1 units. The N-bit PWM sequence includes a least significant bit (LSB) segment characterized by a temporal length of ... | 02/08/2011 |
| 7876338 | Plasma display panel driving method and apparatus The present invention relates to a plasma display panel driving method and apparatus for reducing subfield position variation between display frames by arranging an idle period among the subfields. The subfields included in the frame may be divided into at least two... | 01/25/2011 |
| 7855725 | Method of controlling backlight module, backlight controller and display device using the same A method of controlling a backlight module, a backlight controller and a display device using the same are provided herein. The method includes receiving an image having a plurality of regions, wherein the image is displayed by a plurality of color backlights. Next,... | 12/21/2010 |
| 7817172 | Circuit for generating gate pulse modulation signal and liquid crystal display device having the same A circuit for generating a gate pulse modulation signal includes a gate pulse modulation unit for generating two gate ON voltage modulation signals by using two clock signals each having a different phase, a level shift unit for generating level-shifted and modulate... | 10/19/2010 |
| 7808515 | Method of driving plasma display panel (PDP) and PDP driven using the method A method of driving a plasma display panel (PDP) that includes providing a plurality of X electrodes and a plurality of Y electrodes extending in a first direction, a plurality of A electrodes arranged between the X electrode and the Y electrode and extending in a s... | 10/05/2010 |
| 7804509 | Method and device for encoding luminance values into subfield code words in a display device The invention relates to a method and a device for encoding the luminance value of a pixel of a picture into a subfield code word in a display device. It can be applied to every display device using a PWM (Pulse Width Modulation) technology and subfields for display... | 09/28/2010 |
| 7760214 | Inserting transitions into a waveform that drives a display In one embodiment, the present invention includes a method of driving a first display element with a first pixel waveform that is a function of a desired color for the first display element and a second waveform; and inserting an added transition into the first pixe... | 07/20/2010 |
| 7755651 | Driving method of display device It is an object to provide a driving method of a display device capable of reducing pseudo contours while increase in the number of sub-frames is suppressed as much as possible. In a driving method of a display device where one frame is divided into a plurality of s... | 07/13/2010 |
| 7755650 | Illumination modulation technique A technique includes pulse width modulating an illuminating beam of a light to establish a pixel intensity and modulating the illuminating beam to create different tonal resolution ranges for the pixel intensity. ... | 07/13/2010 |
| 7742066 | Organic light emitting diode display and driving method thereof An organic light emitting diode display and a driving method thereof, has an image displayed with uniform brightness. The method of driving a organic light emitting diode display, includes dividing one frame into one or more sub-frames, and supplying scan signals in... | 06/22/2010 |
| 7738001 | PWM driver for a passive matrix display and corresponding method This invention generally relates to apparatus and methods for driving passive, electro-optic displays with greater efficiency. The invention is particularly suitable for driving passive matrix organic light emitting diode displays. ... | 06/15/2010 |
| 7738002 | Control apparatus and method for use with digitally controlled light sources The present invention provides an extension to a standard N-bit digital pulse width control method which can discriminate 2N discrete pulse widths per pulse cycle. The present invention provides a method and apparatus that can modulate the pulse widths ov... | 06/15/2010 |
| 7692671 | Display debiasing scheme and display A novel method for asynchronously driving a display device including a plurality of pixels arranged in a plurality of columns and a plurality of rows includes the steps of receiving a first multi-bit data word indicative of a first grayscale value to be displayed on... | 04/06/2010 |
| 7679628 | Controller and image display device The present invention discloses a control apparatus. This control apparatus has a modulation circuit, and a control circuit for setting up an amplitude setting signal and/or a pulse width setting signal to be used in the modulation circuit, on the basis of character... | 03/16/2010 |
| 7605831 | System and method for discarding data bits during display modulation A novel method for asynchronously driving a display device including a plurality of pixels arranged in a plurality of columns and a plurality of rows includes the steps of receiving a first multi-bit data word indicative of a first grayscale value to be displayed on... | 10/20/2009 |
| 7586505 | Light emitting device and electronic apparatus using the same Providing a light emitting device capable of suppressing the variations of luminance of OLEDs associated with the deterioration of an organic light emitting material, and achieving a consistent luminance. An input video signal is constantly or periodically sampled t... | 09/08/2009 |
| 7580049 | System and method for using current pixel voltages to drive display A novel method for asynchronously driving a display device including a plurality of pixels arranged in a plurality of columns and a plurality of rows includes the steps of receiving a first multi-bit data word indicative of a first grayscale value to be displayed on... | 08/25/2009 |
| 7580048 | Display driving scheme and display A novel method for asynchronously driving a display device including a plurality of pixels arranged in a plurality of columns and a plurality of rows includes the steps of receiving a first multi-bit data word indicative of a first grayscale value to be displayed on... | 08/25/2009 |
| 7580047 | Single pulse display driving scheme and display A novel method for asynchronously driving a display device including a plurality of pixels arranged in a plurality of columns and a plurality of rows includes the steps of receiving a first multi-bit data word indicative of a first grayscale value to be displayed on... | 08/25/2009 |
| 7576759 | Parallel dithering contour mitigation A method of producing an image. Image data word comprising image data bits for a portion of the image is received at a first frame rate. At least two threshold data values are selected. A first portion of the image data word is compared with the threshold data value... | 08/18/2009 |
| 7515161 | Method for reducing temporal artifacts in digital video boundary dispersion for mitigating PWM temporal contouring artifacts in digital displays spoke light recapture in sequential color imaging systems A system and method for reducing pulse width modulation contouring artifacts. Each input intensity value is translated to at least one non-binary bit pattern for display. Many of the input intensity values are translated to at least two alternate non-binary bit patt... | 04/07/2009 |
