3m Innovative Properties Company

Lg Philips Lcd Co., Inc.

Byung-Soo Ko

Kenneth A Epstein

Leland Ray Whitney

Ji-Hwa Lee

Ji-Hyung Kim

Dongwon Chae

Mark E Gardiner

Mark David Gehlsen

Ryan T Fabick

Linda Mae Rivard

James W Laumer

Sang-Dae Kim

John Allen Wheatley

Shandon Dee Hart

Stephen A Johnson

Gary Timothy Boyd

Eric Wayne Nelson

Keith Michael Kotchick

Charles David Hoyle

Rui Zhang

David J W Aastuen

Jie Zhou

Wade D Kretman

Yufeng Liu

David J Lamb

John F Van Derlofske, Iii

John T Cowher

Yuji Saito

Xianneng Peng

Yasuyuki Daigo

Xingpeng Yang

Youngsoo Park

Chideuk Kim

Seo-Hern Lee

Ji-young Choi

Lowell C Frank

Yang Yu

Naoya Taniguchi

Min-Young Ji

David JW Aastuen

A backlight includes a light source and one or more light recycling films. The light source generates light that exits the light source with an angular exit distribution. The light recycling films are oriented in relation to the light source so that the prism peaks of the recycling films are oriented away from the light source. The recycling films have a range of optimal incident angles that allow light to pass through the recycling films without recycling. The components of the light source, the characteristics of the recycling films, or both, are configured to control the overlap between the exit distribution of the light source and the optimal incident angle range of the recycling films.

Systems and methods for controlling backlight output characteristics

In one embodiment, the invention provides backlight comprising a front reflector () and a back reflector () disposed to form a hollow light cavity () with a first light source () proximate one end of the front reflector () and having a tilt angle () of from 5&#xb0; to 90&#xb0;, and a first asymmetric light collimator () extending between at least the first light source () and the back reflector () for directing light from the first light source () into the hollow light cavity ().

Hollow backlight with tilted light source

In a 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. In some embodiments, the diffuser layer is attached to the lower side of the LCD panel. Some, or all, of the light management layers may be attached together as a laminated stack of films. In some embodiments, the diffuser layer is formed with a recessed region on one side and another optical film positioned within the recessed region.

Liquid crystal displays with laminated diffuser plates

Optical film laminates of birefringent polyester films and adhesive are disclosed. The laminates have a thickness of at least 10 mils (0.25 mm). The laminates of the invention are useful in displays having a diagonal of 37 in (94 cm) or greater.

Optical film laminates

The present disclosure is directed to optical devices including a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source. The second surface includes a two-dimensional array of closely packed substantially hemispherically-shaped structures. In some implementations of the present disclosure, the optical film further includes a substrate portion having an optical characteristic different from optical characteristics of the second surface comprising the two dimensional array.

Optical film having a surface with rounded structures

Optical films are disclosed, which have a structured surface including a plurality of concave pyramid-shaped structures, each structure having a base including at least two first sides and at least two second sides. In addition, optical devices are disclosed that incorporate the optical films, for example, such that a first surface of the optical film is disposed to receive light from a light source and the structured surface faces away from the light source.

Optical film having a structured surface with concave pyramid-shaped structures

The present disclosure is directed to optical films having a first surface and a structured surface, the structured surface comprising a plurality of prismatic structures. Each prismatic structure has a base including at least two first sides and at least two second sides. At least one of the first and second sides of at least one of the plurality of prismatic structures is offset with respect to at least one of the first and second sides of at least one other prismatic structure.

Optical film having a structured surface with offset prismatic structures

A cholesteric liquid crystal (CLC) color filter substrate for reflective liquid crystal display devices comprises an alignment layer on a black substrate, a cholesteric liquid crystal (CLC) color filter on the alignment layer, the cholesteric liquid crystal (CLC) color filter including sub-color-filters red (R), green (G), and blue (B), and black matrices on boundaries of each of the sub-color filters R, G, and B. In addition, a cholesteric liquid crystal (CLC) color filter substrate for a reflective liquid crystal display devices comprises an alignment layer on a black substrate, a cholesteric liquid crystal (CLC) color filter on the alignment layer, the cholesteric liquid crystal (CLC) color filter including sub-color-filters R, G, and B, and boundaries of the sub-color filter R, G and B that reflect incident light having a long wavelength.

Cholesteric liquid crystal color filter substrate and method for fabricating the same

The present invention discloses a method of manufacturing an array substrate, comprising: forming an electrode line on a substrate using a wet etching technique; and forming an organic insulating layer on an exposed surface of the substrate while covering the electrode line, wherein the electrode line has a side portion having an overhang or a taper angle of more than 45&deg; C. Due to the method, the ashing process using a dry etchant gas cannot be needed anymore.

Array substrate with multi-layer electrode line

A cholesteric liquid crystal (CLC) color filter substrate for reflective liquid crystal display devices comprises an alignment layer on a black substrate, a cholesteric liquid crystal (CLC) color filter on the alignment layer, the cholesteric liquid crystal (CLC) color filter including sub-color-filters red (R), green (G), and blue (B), and black matrices on boundaries of each of the sub-color filters R, G, and B. In addition, a cholesteric liquid crystal (CLC) color filter substrate for a reflective liquid crystal display devices comprises an alignment layer on a black substrate, a cholesteric liquid crystal (CLC) color filter on the alignment layer, the cholesteric liquid crystal (CLC) color filter including sub-color-filters R, G, and B, and boundaries of each of the sub-color filters R, G and B that reflect incident light having a long wavelength.

A liquid crystal display includes a substrate, a gate line on the substrate, a gate insulating layer on the gate line, a data line on the gate insulating layer, a thin film transistor having a gate electrode, a source electrode, and a drain electrode, wherein the gate electrode is connected to the gate line and the source electrode is connected to the data line, a first passivation layer having a first contact hole exposing the drain electrode and covering the data line and the thin film transistor, the first passivation layer having a first resistance, an insulating layer having a second resistance lower than the first resistance and covering the data line and the thin film transistor, a second passivation layer having a second contact hole connected to the first contact hole and on the insulating layer and the first passivation layer, and a pixel electrode on the second passivation layer and contacting the drain electrode through the first and second contact holes.

Black matrix in liquid crystal display and method of fabricating the same

Growing community of inventors

Seoul, South Korea

Byung-Soo Ko