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Class 349/64 - Diffuser between light source and liquid crystal


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter wherein the optical means scatters or disperses
No. of patents: 550
Last issue date: 05/01/2012


1                      
NumberTitleIssue Date
8169566Backlight unit and liquid crystal device having the same
A backlight unit includes a light source, a lower frame including of a lighting unit supporting portion for supporting the light source and a liquid crystal display (LCD) panel supporting portion having a lower thermal conductivity than the lighting unit supporting ...
05/01/2012
8159633Optical plate and liquid crystal display device using the same
An exemplary optical plate includes a transparent layer and a light diffusion layer. The transparent layer and the light diffusion layer are integrally formed. The transparent layer includes a light input interface, a light output surface opposite to the light input...
04/17/2012
8154684Light emission device and display device using the light emission device as a light source
A light emission device including: a light emission panel including at least two emissive regions spaced apart from each other and a non-emissive region between the emissive regions; and a light diffuser located in front of the light emission panel, the light diffus...
04/10/2012
8154685Planar illumination device, and image display device
A laser light source (1) emits a beam. A collimator lens (2) converts the beam emitted from the laser light source (1) into first substantially parallel light. A lenticular lens (3) expands a beam of the first substantially parallel light...
04/10/2012
8134657Optical component, lighting device and display device
One embodiment of the present invention is an optical component, including a first main surface and a second main surface wherein a plurality of two-dimensionally arranged first convex parts are arranged on the first main surface, each of the first convex parts bein...
03/13/2012
8134656Backlight device, display device, and television receiver
A backlight device is provided with a cold cathode fluorescent tube as a first light source that emits light of green, and a cold cathode fluorescent tube as a second light source that can be switched on independently from the first light source and emits light of r...
03/13/2012
8125590Optical film, backlight unit including the same and liquid crystal display device having the same
An optical film, a backlight unit having the same, and a liquid crystal display device having the same are disclosed. The optical film comprises a base film and a plurality of structures disposed on the base film, at least one of the structures comprising a pluralit...
02/28/2012
8125589Direct-LIT liquid crystal displays with laminated diffuser plates
In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. The diffuser laye...
02/28/2012
8115888Liquid crystal display device
A liquid crystal display device includes a light source, at least one optical member having a periodic structure of 75 μm or more, pixels disposed in a matrix state, and at least one optical member with light scattering properties. ...
02/14/2012
8115889Backlight unit and liquid crystal display device including the same
A lamp guide includes: a horizontal part; at least one supporting part extending from a front surface of the horizontal part; a plurality of holding parts on the front surface of the horizontal part, each of the plurality of holding parts holding a lamp and twisted ...
02/14/2012
8111353Lens array sheet, light source and liquid crystal display device
A lens array sheet includes a lens layer having a lens surface on which a plurality of lenses are formed in an array, a light reflection layer arranged at an opposite side to the lens surface of the lens layer and having an opening within a light focusing region in ...
02/07/2012
8111352Anisotropic optical device with varying local imagewise and method for making same
The present invention relates to a new optical component comprising an anisotropic diffuser (5,10) with patterned anisotropy; and means (9, 11, 14, 16, 17, 20, 21, 30, 32) for providing a colorshift observable upon changing viewing angle (6) and...
02/07/2012
8107035Laser backlighting for displays
Displays such as LCD panels are illuminated using frequency-doubled vertical extended cavity surface emitting lasers (VECSELs) as efficient light sources. Visible light from the VECSELs are directed to an illuminating panel using optical fibers and/or optical gratin...
01/31/2012
8102485Electro-optical device including prismatic condensing layers
An electro-optical device includes: an electro-optical panel that includes a plurality of pixels each of which is equipped with a light transmissive region are arranged along a plane, the light transmissive regions being formed with a first arrangement period in a f...
01/24/2012
8094260Back light module and liquid crystal display
A liquid crystal display (LCD) including an LCD panel and a back light module is provided. The back light module is disposed below the LCD panel. The back light module includes a planar light source, a reflective polarized light enhancement film, a first prism film ...
01/10/2012
8081271Backlight apparatus and liquid crystal display apparatus
A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate 130 is opposite the rear surface of liquid crystal panel 110. LEDs
12/20/2011
8057058Lighting device for display device, display device and television receiver
A lighting device for a display device includes a light source, an optical member arranged on the light emitting side of the light source, and a support member arranged to support the optical member from the light source side. A recess portion arranged to accommodat...
11/15/2011
8049837Multilayer film, backlight unit and liquid crystal display having the same
The present invention is directed to a multilayer film. The present invention is also directed to a backlight unit and a liquid crystal display into which the multilayer film is incorporated. The backlight unit comprises a light source; and a multilayer film dispose...
11/01/2011
8045093Backlight unit and liquid crystal display device having the same
A backlight unit for slimmed structure and exhibiting uniform brightness through the improvement of its luminance efficiency and the quality in appearance of which is improved by the removal of bright lines, and a liquid crystal display device having the same are di...
10/25/2011
8045094Backlight device, display device, and television receiver
A backlight device capable of preventing or reducing, even when an optical sheet bends, occurrence of luminance nonuniformity and/or shades due to the bend. The backlight device 1 controls the properties of light emitted by a light source 12 using two ...
10/25/2011
8040463Semiconductor light-emitting device
The device includes a support substrate, a reflective electrode on the support substrate; an AlGaInP-based semiconductor film including a light-emission layer and is provided on the reflective electrode, and a surface electrode provided on the semiconductor film. Th...
10/18/2011
8040461Compound diffusion plate structure, backlight module, and liquid crystal display
A liquid crystal display, comprising: a liquid crystal display panel and a backlight module. The backlight module comprising: a reflection unit, a light emitting unit, and a compound diffusion plate structure. The light emitting unit has a plurality of light emittin...
10/18/2011
8040462Liquid crystal display device
The present invention can provide an optical device, an optical uniform device, an optical sheet and a backlight unit and a display apparatus. In the present invention, a lamp image can be removed by uniformly emitting incident light from a plurality of light source...
10/18/2011
8023068Optical sheet, backlight unit, and liquid crystal display
An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit are provided. The optical sheet includes a base film including a first surface and a second surface opposite the first surface and a plurality o...
09/20/2011
8023067Liquid crystal display device and fabricating method thereof
A liquid crystal display device that reduces manufacturing cost, contributes to a thin profile, and generates uniform brightness, and a fabricating method thereof are disclosed. In the liquid crystal display device, a liquid crystal display panel is prepared....
09/20/2011
8009243Light diffusion device, backlight module and liquid crystal display
A light diffusion device including a light incident surface and a light exit surface is provided. The light exit surface has at least one light scattering pattern. A trajectory of the light scattering pattern is a continuous curve. The continuous curve is winded to ...
08/30/2011
7995159Liquid crystal display apparatus
A liquid crystal display apparatus, includes a liquid crystal panel including a first substrate, a second substrate disposed in an opposing relationship to the first substrate with a space left, and a liquid crystal layer provided in the space between the first and ...
08/09/2011
7995160Prism sheet and liquid crystal display having the same
Disclosed are a prism sheet and a liquid crystal display having the same. The prism sheet includes a base and a plurality of prism mountains. The base includes a front surface and a rear surface facing the front surface. The prism mountains are integrally formed wit...
08/09/2011
7990491Liquid crystal display device
A liquid crystal display device has a thin structure with a backlight device appropriate for illuminating a liquid crystal panel where there is no area in band form where the brightness is inconsistent. The size of the diffusion plate that forms the optical sheet of...
08/02/2011
7982824Liquid crystal display device
Disclosed is a liquid crystal display device including an optical member with a region using an optical component such as a light emitting diode (LED) used as a backlight source, namely, a light characteristics changing layer for changing a spectrum distribution and...
07/19/2011
7978286Illumination unit and liquid crystal display device
An illumination unit includes a light guide having an incidence surface, a frame which is spaced apart from the incidence surface of the light guide, an accommodation section which is formed between the incidence surface of the light guide and the frame, and a light...
07/12/2011
7973878Diffuser for light from light source array and displays incorporating same
An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing paralla...
07/05/2011
7973879Backlight unit and liquid crystal display device having first and second diffusion layers that have different haze values
A backlight unit for a liquid crystal display device includes a reflection sheet, at least one lamp arranged over the reflection sheet, a diffuser plate over the at least one lamp, the diffuser plate including a base plate of a transparent material, a diffusion laye...
07/05/2011
7961270Display device with low scratch visibility and manufacturing method thereof
A display device and a manufacturing method thereof are provided. The display device includes a light guide, a light source, and a brightness enhancement film (BEF), and a dual brightness enhancement film (DBEF). The light guide has a first edge along a first direct...
06/14/2011
7956954Optical sheet, backlight unit, and liquid crystal display
An optical sheet, a backlight unit including the optical sheet and a liquid crystal display including the backlight unit are disclosed. The optical sheet includes a reflective polarizing film, and a first diffusing layer on the reflective polarizing film. The first ...
06/07/2011
7948580Liquid crystal display
A liquid crystal display includes a backlight (3), a liquid crystal display panel (1), and a viewing angle control panel (2) for controlling the viewing angle of the display panel (1), the liquid crystal display further including a lens s...
05/24/2011
7944526Liquid crystal display device with a backlight unit having a diffusion plate
A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged o...
05/17/2011
7940352Light diffusion module and a back light module using the same
A light diffusion module and a back light module using the same. The light diffusion module is disposed corresponding to the light source module of the back light module. The light diffusion module includes a first diffusion layer and the second diffusion layer. The...
05/10/2011
7940351Image display apparatus
An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the to...
05/10/2011
7932967Brightness enhancement film-laminated light diffuser plate and method for producing the same
The present invention provides a brightness enhancement film-laminated light diffuser plate which can sufficiently prevent scratching, and also can ensure sufficient brightness. The brightness enhancement film-laminated light diffuser plate of the present invention ...
04/26/2011
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