U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"During my service in the United States Congress, I took the initiative in creating the Internet."

Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 348/791 - Color TV


Subclass of Class 348 - Television
Definition: Subject matter wherein the image signal is displayed in
No. of patents: 56
Last issue date: 05/06/2008


1    
NumberTitleIssue Date
7369327Variable optical-property element and optical apparatus including the same
A variable optical-property element includes a liquid crystal the pitch of twist is less than 60 times the wavelength of light used, so that a spatially uneven electric or magnetic field or temperature is applied to the liquid crystal to thereby form an index distri...
05/06/2008
7336322Image display apparatus
An image display apparatus includes a second converging unit constructed so that a light flux from part of a first light source or from a separately provided second light source is converged to have a line shape, a spectroscope/deflector unit constructed so that his...
02/26/2008
7325937Lighting device for display device and display device
In a lighting device for a display device, a clearance is set between an edge portion of a locking piece in a lamp clip, and a hole edge of a locking piece insertion hole provided at a back plate part of the case to correspond to the locking piece, and thereby, rela...
02/05/2008
7266778Freezable projection display
A display system and method are provided. The system typically includes a display configured to control visible light, as well as to sense an optical signal projected thereon, the display being adapted to freeze a projected image by storing the optical signal associ...
09/04/2007
7262754Electronic device with liquid crystal display
An electronic device, such as personal computer, incorporating a liquid crystal panel which uses LEDs as an illuminating light source for a liquid crystal panel to reduce power consumption and size of the electronic device. When 3-color LED lamps 13R, 13
08/28/2007
7202917Projection type image display device
A light source, an image display panel including multiple pixel regions, each of which modulates light, light control means for focusing light from the light source onto associated pixel regions according to their wavelength ranges, and optical systems that form an ...
04/10/2007
7184480Digital PWM generator
A digital PWM circuit is provided. One exemplary circuit includes a binary counter, an n-bit DAC and a comparator. The binary counter generates a plurality of binary signals in increasing and/or decreasing value. The DAC circuit generates ramp signals composed of a ...
02/27/2007
7154554Flat moldable HDTV display
An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize between the columns to allow all pixels of a single row to be lit at th...
12/26/2006
7142188Image display device
A multi-color display system operates to suppress deterioration in resolution and increase in power consumption or deterioration in brightness. The multi-color display system includes n types of spectrum selecting means; m types of light sources each having a differ...
11/28/2006
7034785Color liquid crystal display
In an ECB LCD, in which a liquid crystal layer enclosed between a pair of substrates is driven based on R, G, B signals so that transmittance of R, G, B light components at the liquid crystal layer is controlled for color display, the voltage levels of the liquid cr...
04/25/2006
7012598Liquid crystal display device and method for operating the same
A method for operating a liquid crystal display having a panel with a back light includes applying a first gate signal starting a real data period followed by a second gate signal starting a black data period sequentially to gate lines of the panel, applying actual ...
03/14/2006
7002539Field sequential color display device
A field sequential color display apparatus for sequentially displaying RGB field images so that a color frame image can be observed, comprising: an LCD display device for displaying RGB field images; a timing generation/control circuit for controlling the order of R...
02/21/2006
6980266Liquid crystal display and driving method thereof
A liquid crystal display device and method that are adaptive to compensate for brightness deviation among red, green and blue colors. This device includes red liquid crystal cell lines having red liquid crystal cells, green liquid crystal cell lines having green liq...
12/27/2005
6976779Planar light source device and liquid crystal display device using the same
The liquid crystal display device has red, green, and blue LEDs, each emitting a different color light, as a light source. An acrylic lens is mounted on the emission surface of the LED to change angular distributions of light from the LED. The shape of the acrylic l...
12/20/2005
6970205Display panel with aspect ratio of matrix-arrayed pixels set to predetermined value, and display device using such display panel
A liquid crystal display device using an LCD panel made for display of computer output, wherein video signals of a predetermined television system are converted by a decoder into field-unit picture data, and frame-unit picture data obtained therefrom by a converter ...
11/29/2005
6909472Conversion of a video signal for driving a liquid crystal display
Method and apparatus for the conversion or generation of a video signal intended to be displayed on an image display with different luminance response times for rise and fall. The conversion or generation of the video signal is so that motion artefacts which are cau...
06/21/2005
6867813Flat moldable HDTV display
An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize between the columns to allow all pixels of a single row to be lit at th...
03/15/2005
6292234Projection type color liquid crystal display device
A projection type color liquid crystal display apparatus includes: light collimation means for producing collimated light; main-wavelength band separation means for receiving the collimated light from the light collimation means and producing a plurality ...
09/18/2001
5731794Color panel display device
A three-color backlight type display device according to the present invention is provided for reproducing a full color image with no use of color filters. In use, a composite signal is separated by a RGB decoder into R, G, and B color components which ar...
03/24/1998
5671031Reflection type liquid crystal display device and personal digital equipment using the same
A reflection type liquid crystal display device of the present invention includes: a first substrate having a reflective electrode formed thereon; a second substrate having a transparent counter substrate and a color filter formed thereon; and a liquid cr...
09/23/1997
5633755Projection apparatus and method
A projection apparatus is disclosed that can be used for projection TV and related applications. The apparatus comprises a light source, a projection optical system, a DMD with multiple micromirrors, and a controller for individually controlling the tilt ...
05/27/1997
5621479Method of driving a liquid crystal display device
A method of driving a liquid crystal display device for converting a composite video signal into RGB analog video signals by a chrominance circuit, and controlling the transmittance of each pixel corresponding to each color or red, green and blue on a liq...
04/15/1997
5598053LCD-CRT hybrid image tube
An LCD projection system, located within a standard color CRT, is used to oject toward the screen decay stimulation patterns that vary dynamically from one frame to the next for each pixel based on the video signals received from external sources. This co...
01/28/1997
5585868Video quality improvement
A video quality improvement method and apparatus for a television system recovers lost brightness information from the chrominance channels of an encoder due to processing errors, such as quantization roundoff errors, and adds it to the luminance input to...
12/17/1996
5523802Dual-mode image display apparatus for displaying color images and black-and-white images
A dual-mode image display apparatus includes a black-and-white image display device and a selective filter. The selective filter is caused to assume a first mode in which it sequentially serves as red, green and blue filters, and a second mode in which it...
06/04/1996
5301031Scanning conversion display apparatus
A display apparatus using a matrix display panel, such as a liquid crystal panel, for converting the number of scanning lines to be displayed to a number that can be accommodated on a panel having a smaller number of scanning lines. The apparatus includes...
04/05/1994
5251071Color filter
The color filter according to the present invention contains black matrix formed by polyimide, which contains light shielding pigments such as carbon black, triiron tetraoxide, etc. instead of the black matrix used in the past, which is formed by metal th...
10/05/1993
5144288Color liquid-crystal display apparatus using delta configuration of picture elements
The present invention relates to picture elements of a color liquid-crystal display apparatus, color arrangements of coloring means, and the electric control. The arrangement patterns of picture-element electrodes are provided which may be driven by a sim...
09/01/1992
5119084Liquid crystal display apparatus
In a liquid crystal driving apparatus for driving a liquid crystal display panel in accordance with an image signal, the response speed of a liquid crystal display panel is increased so as not to produce an afterimage upon motion image display. A signal i...
06/02/1992
5079636Modular flat-screen television displays and modules and circuit drives therefor
A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array th...
01/07/1992
5006933Liquid crystal television
In a liquid crystal television, segment electrodes of a liquid crystal panel are divided into image segment electrodes and indicator segment electrodes. A liquid crystal display unit includes an image segment driver for receiving a video signal from a tel...
04/09/1991
4982272Modular flat-screen color television displays and modules and circuit drives therefor
A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the ar...
01/01/1991
4982273Modular flat-screen color television displays and modules and circuit drives therefor
A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the ar...
01/01/1991
4982275Modular flat-screen color television displays and modules and circuit drives therefor
A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the ar...
01/01/1991
4978952Flat screen color video display
A video display having a shutter assembly with apertures, optical guides extending behind the assembly and a group of different light sources channeling their light into each of the optical guides, respectively. The guides may be collimators which allow l...
12/18/1990
4942458Color liquid crystal display apparatus
A color liquid crystal display apparatus includes a receiver, a color separation circuit, A/D converters, a liquid crystal panel, and an adjusting section. The receiver receives an external radio wave and outputs a video signal. The color separation circu...
07/17/1990
4920409Matrix type color liquid crystal display device
A matrix type color liquid crystal display device includes a plurality of stripe-shaped common electrodes extending in a horizontal direction; a plurality of square-shaped segment electrodes positioned opposite to the stripe-shaped common electrodes; and ...
04/24/1990
4901140Solid state 360 degree viewing system having a liquid crystal display (LCD) screen that encircles the rotating real image in space and functions as a multi-color filter system
A viewing system is provided for presenting a real image in space that is rotated extremely rapidly so that an entire audience, regardless of an individual's position about the viewing system, can view the same image substantially simultaneously and conti...
02/13/1990
4892391Method of arranging the cells within the pixels of a color alpha-numeric display device
An improved method of arrangement for the cells comprising the pixels of a display device wherein each of the pixels includes a brightest cell, a bright cell, a medium cell and a dark cell. The brightest cell and the bright cell are aligned substantially ...
01/09/1990
4878047Structure of multiplex-type liquid crystal image display apparatus, and control circuit therefor
An image display apparatus in which segment electrodes of a liquid crystal panel are extracted or accessed upward and downward alternately one by one, relative to the panel. A luminance signal is alternately A/D-converted by two A/D converters, and the se...
10/31/1989
1    
 
Sign InRegister
Username  
Password   
forgot password?