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

Icon_funbox Bizarre Patents

Patent No. 5508049

Pizza Pie With Concentric Rings of Crust

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

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 349/71 - Formed of planar phosphor or fluorescent layer separate from illumination source


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter including a continuous layer or a layer of
No. of patents: 135
Last issue date: 03/06/2012


1        
NumberTitleIssue Date
8130342Liquid crystal display device and color filter for liquid crystal display device
Disclosed a liquid crystal display device including a backlight device including a white-emitting LED device which emits a white light arising from a color mixture created through a combination of a blue-emitting LED, a red-emitting phosphor and a green-emitting pho...
03/06/2012
8040467Blue color composition for color filter, color filter, and color image display device
The present invention relates to color image display devices having a combination of light shutters, a color filter having color elements of at least three colors of red, green and blue corresponding to the light shutters, and a backlight for transmission illuminati...
10/18/2011
7834956Photoluminescent backlighting of and infrared transmissive visible light barrier for light valve
Various embodiments related to photoluminescent backlighting for a light valve are disclosed herein. One disclosed embodiment comprises a computing device with a light valve having a viewing side and a back side. A photoluminescent material is disposed behind the ba...
11/16/2010
7800712Cold cathode fluorescent lamp and liquid crystal display device
A cold cathode fluorescent lamp includes a tube having an inner surface coated with a fluorescent film and tubular discharge electrodes disposed at both inner ends of the tube. Each discharge electrode has an opening facing a discharge area and includes a projection...
09/21/2010
7782422Liquid crystal display device utilizing fluorescent members illuminated by blue light to produce red, green, blue and white pixel regions
In a display panel and a display device having the display panel, the display device has a first pixel area, a second pixel area, a third pixel area and a fourth pixel area. A red fluorescent member, a green fluorescent member and a yellow fluorescent member are for...
08/24/2010
7746423Photo-luminescent liquid crystal display including a blue dichroic mirror layer
A photo-luminescent (PL) liquid crystal display (LCD) including a blue dichroic mirror layer disposed under a light emitting layer is provided. Visible light generated from the light emitting layer is mostly reflected to the front side of the PL LCD, thereby increas...
06/29/2010
7733441Organic electroluminescent lighting system provided with an insulating layer containing fluorescent material
It is an object of the present invention to provide a lighting system having favorable luminance uniformity in a light-emitting region when the lighting system has large area. According to one feature of the invention, a lighting system comprises a first electrode, ...
06/08/2010
7649594Photo-luminescent liquid crystal display
A photo-luminescent liquid crystal display (PL LCD) includes: a light control unit which includes a liquid crystal (LC) layer modulating the UV light and electrodes driving the LC layer; and a light emitting layer which emits light by the UV light transmitted throug...
01/19/2010
7633579Directional display device
A directional display device configured to display a plurality of directional images simultaneously is provided. The directional display device includes a liquid crystal panel having a liquid crystal layer and a light reflecting membrane arranged behind the liquid c...
12/15/2009
7630028Color liquid crystal display having a blue light source and fluorescent wavelength conversion areas
A color liquid crystal display includes a wavelength converter having a plurality of wavelength conversion areas and a plurality of transparent areas. The wavelength conversion areas are disposed at the positions corresponding to red and green filters while the tran...
12/08/2009
7440044Color display device and method
A color display having a monochromatic light source, an optical switch and an array of pixels formed of anisotropically emitting photoluminescent material may be combined such that large losses often associated with color filter and polarizers are avoided such that ...
10/21/2008
7430028Viewing-angle adjustable liquid crystal display and method for adjusting the same
A viewing-angle adjustable liquid crystal display includes a display panel, a backlight unit, and a sidelight unit. The backlight unit is located under the sidelight unit, and the sidelight unit is disposed under the display panel. The sidelight unit includes a firs...
09/30/2008
7391407Back-light driving circuit in field sequential liquid crystal display
A back-light driving circuit controlling red (R), green (G), and blue (B) back lights providing light to a liquid crystal panel in a field sequential liquid crystal display. The back-light driving circuit includes a driving voltage generator that provides a driving ...
06/24/2008
7372521Direct type backlight assembly
A direct type backlight assembly includes at least one light lamp under a liquid crystal panel, having two substrates bonded with a liquid crystal layer therebetween. A light guide plate is positioned between adjacent light lamps. A reflective plate is under the lig...
05/13/2008
7372447Microdisplay for portable communication systems
The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED il...
05/13/2008
7362398Camera and personal computer having a reflection type liquid crystal device with particular dielectric multi-layer film and interlayer insulating films
To provide a novel and extremely effective structure of a liquid crystal display device in which the lowering of reflectivity due to the formation of orientation films can be prevented, a method of manufacturing the display device of the present invention comprises ...
04/22/2008
7349044Liquid crystal display assembly having the interference filter disposed corresponding exclusively to the green region
An LCD assembly comprising a TFT substrate, and a color filter disposed above the TFT substrate and formed with red, green and blue regions, further comprises an interference filter disposed corresponding to the green region with respect to a direction of emitting l...
03/25/2008
7321354Microdisplay for portable communication systems
The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED il...
01/22/2008
7318298Illuminated security gate unit
A gate assembly comprising a gate mount and a gate mounted for movement on the gate mount between an opened position and a closed position. The gate assembly further comprises an illumination system mounted on the gate mount for turning on a light mounted on the gat...
01/15/2008
7311432Backlight modules and fluorescent lamp assemblies thereof
Backlight modules. A backlight module for a flat display device includes a light guide element and a fluorescent lamp assembly. The fluorescent lamp assembly disposed on a first side of the light guide element includes a first fluorescent lamp and a second fluoresce...
12/25/2007
7309144Stacked light source
A light emitting device having two stacked light generators mounted in a reflector cup. In one embodiment the light generators emit complementary colors that mix to form white light. ...
12/18/2007
7304696Image display
The present invention is an image display apparatus having pixels PXLs arranged in a matrix form, and comprises a display panel displaying images by reflecting external light from the front side or by having illumination light from the back side transmit therethroug...
12/04/2007
7292293Color filter substrate and manufacturing process therefor, liquid crystal device and manufacturing process therefor, and electronic apparatus
In a dark environment, light emitted by a fluorescent tube 301 enters a liquid crystal panel by a light guide plate 302, is transmitted through a transflective electrode 102 after passing through a polarizer 114 and a retardation plate
11/06/2007
7285799Semiconductor light emitting devices including in-plane light emitting layers
A semiconductor light emitting device includes a planar light emitting layer with a wurtzite crystal structure having a axis roughly parallel to the plane of the layer, referred to as an in-plane light emitting layer. The in-plane light emitting layer may inc...
10/23/2007
7282734Light emitting device having stripe form electrodes and auxiliary electrodes
A light emitting device is provided, which uses alternating current drive as a method of driving the light emitting device, and in which light emission is always obtained when voltages having different polarities are alternately applied, and a method of manufacturin...
10/16/2007
7263792Illuminated identification panel
A long-range house number identification panel has its number indicia mounted on an illuminated viewing screen, being individually readable with the naked eye from up to 200 feet distance. An electrically energizable phosphorescent screen behind the indicia serves t...
09/04/2007
7259808Liquid crystal display assembly comprising fasteners for attaching LCD panel and backlight together to a support member
There is provided a liquid crystal display (LCD) assembly having a plurality of members, where the outer periphery of each member corresponds with the respective outer periphery of the other members, comprises a LCD panel and a liquid crystal injection member instal...
08/21/2007
7253799Backlight using planar hologram for flat display device
The backlight for a flat display device including a light source, a light guide plate and a surface hologram is provided. The light guide plate is installed at one side of the light source, and light from the light source travels in the light guide plate while being...
08/07/2007
7248310Flat panel energized by blue LED for generating white light
A color, transmissive LCD uses a backlight that supplies a uniform blue light to the back of the liquid crystal layer in an LCD. The blue light, after being modulated by the liquid crystal layer, is then incident on the back surface of phosphor material located abov...
07/24/2007
7239361Display
A display includes a display surface, an electroluminescent panel, which has a plurality of electroluminescent elements, and a liquid crystal panel, which has a plurality of liquid crystal elements. The liquid crystal panel and the electroluminescent panel overlaps ...
07/03/2007
7205805Adjusting power consumption of digital circuitry relative to critical path circuit having the largest propagation delay error
A method and apparatus is disclosed for adjusting at least one of a supply voltage and a clocking frequency applied to digital circuitry of a computing device, wherein the digital circuitry comprises a plurality of critical path circuits and a corresponding pluralit...
04/17/2007
7192148Illuminated logo unit with reflective device
An illuminated logo unit (300) includes a reflective device (320), a pattern panel (301), and an illuminator (311). The reflective device includes a bottom portion (323) and a circumferential portion (321). The circumferenti...
03/20/2007
7184111Phosphor for use in white semiconductor light sources and a white light source utilizing the same
A light source having an LED that is covered by a layer containing a phosphor is disclosed. The LED emits light in a first wavelength band. The phosphor containing layer includes particles that contain a phosphor having the formula Dy3A5O1...
02/27/2007
7176996Transreflective liquid crystal display having a reflective film with an opening on a transreflective thin film, and method of manufacturing the same
Disclosed are a transreflective type LCD and a method of manufacturing the same. A color filter substrate is formed with a light transreflective member for reflecting an external light or transmitting an artificial light and a visual angle increasing member for incr...
02/13/2007
7160017Brightness enhancement film using a linear arrangement of light concentrators
A brightness enhancement article (30) provides light from a two-dimensional surface. The brightness enhancement article (30) has a plurality of light collecting structures (32), wherein each light collecting structure (32) is longitudinal...
01/09/2007
7145709Apparatus and methods for modulating refractive index
An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ...
12/05/2006
7146084Fiber optic light source for display devices
A light source includes at least one optical fiber having a length and first and second ends and at least one electromagnetic wave source disposed along at least a portion of the length of the fiber for transmitting electromagnetic waves through a side surface of th...
12/05/2006
7129763Adjusting power consumption of digital circuitry by generating frequency error representing error in propagation delay
A method and apparatus is disclosed for adjusting at least one of a supply voltage and a clocking frequency applied to digital circuitry of a computing device, wherein the digital circuitry comprises a critical path circuit. A propagation delay frequency representin...
10/31/2006
7129930Cordless computer keyboard with illuminated keys
A remote keyboard has keys which are illuminated for identification under a dim motherboard. For a first embodiment of the invention, the identifying symbol or symbols on each key cap of the keyboard is formed from luminescent material. Alternatively, the symbol or ...
10/31/2006
7128953Optical film comprising support and polarizing layer
An optical film comprises a transparent support and a polarizing layer. The polarizing layer selectively transmits polarized light, and selectively reflects or scatters other polarized light. The polarizing layer contains a compound represented by the formula (I) of...
10/31/2006
1        
 
Sign InRegister
Username  
Password   
forgot password?