Abstract:
A backlight unit is provided to improve the light efficiency and prevent the generation of the luminance unevenness. A predetermined storage space is formed inside of the mold frame(800). The backlight unit consisting of optical members(500, 710, 720), and the lamp unit(400) and reflector(600) is arranged in the storage space of the mold frame. An LCD panel(100) displaying image is arranged on the top of the backlight unit. The lamp unit comprises a plurality of stick type lamps(410) and lamp support part(430). A light diffusing sheet(720) disperses the light which is income from a plurality of lamps, and prevents light from being partly crowed.
Abstract:
An LCD device is provided to adjust the alignment direction of a protection film and a reverse prism film, thereby obtaining high brightness and improving optical efficiency. An LCD(Liquid Crystal Display) panel includes a first substrate(11), a second substrate(12), and a polarizing plate(15,16). A TFT(Thin Film Transistor) is formed on the first substrate. The second substrate is opposite to the first substrate. The polarizing plate is attached to the outside of the first substrate. A light guide plate(40a,40b,40c) is positioned in the rear of the LCD panel. A light source(50) is positioned along the light incident surface of the light guide plate. A polyethylene terephthalate film(20,30) is positioned between the LCD panel and the light guide plate and has an alignment direction in parallel with the axial direction of the polarizing plate.
Abstract:
An optical member and a liquid crystal display device having the same are provided to improve the efficiency due to a liquid crystal layer and brightness due to a condensing layer at the same time to increase the light efficiency, thereby simplifying the formation of the liquid crystal display device. A liquid display device includes a liquid crystal display panel. A light source supplies a light to the liquid crystal display panel. A liquid crystal layer(330) is interposed between the liquid crystal display panel and the light source unit, including cholesteric liquid crystal. An optical member(300) is placed on a first plane of a liquid crystal film toward the liquid crystal display panel, including a condensing layer(390) having a plurality of lens patterns(391), and a quarter phase difference film layer(350) formed between the liquid crystal layer and the condensing layer.
Abstract:
단선을 방지한 램프 어셈블리, 램프 어셈블리를 갖는 백라이트 어셈블리 및 백라이트 어셈블리를 갖는 표시장치가 개시되어 있다. 램프 어셈블리는 램프 및 신호선들을 포함한다. 램프는 광이 발생되는 램프 몸체 및 램프 몸체의 양 단부에 형성된 전극들을 포함한다. 신호선들은 전극들과 솔더링되어 연결되고, 신호선들 중 적어도 하나는 램프 몸체와 예각을 이룬다. 이와 같이, 신호선들이 램프 몸체와 예각을 이루도록 연결됨으로써 스트레스에 의해 발생되는 신호선들의 단선을 방지할 수 있다.
Abstract:
센싱 동작을 제어하는 인지 무선 통신 장치 및 그 방법이 개시된다. 인지 무선 통신 장치는 세컨더리 시스템에 속하는 적어도 하나의 센싱 노드로부터 프라이머리 시스템의 채널 점유 상황과 관련된 채널 상황 정보를 수신하는 정보 수신부, 상기 채널 상황 정보를 기초로 상기 채널 점유 상황의 변화 패턴에 따라 상기 적어도 하나의 센싱 노드의 센싱 주기를 제어하는 센싱 제어부 및 상기 세컨더리 시스템에 속하는 적어도 하나의 멤버 노드로 상기 제어된 센싱 주기와 관련된 제어 정보를 전송하는 제어 정보 전송부를 포함한다. 인지 무선, 센싱, 센싱 주기, 센싱 빈도, 센싱 노드, 채널 점유, 단말, 기지국
Abstract:
An optical member and a liquid crystal display device with the same are provided to obtain a diffusion function and a light collection function at the same time. A method for manufacturing an optical member includes: providing first polymer solution, second polymer solution, and third polymer solution; pressing the first polymer solution to form a diffusion layer(321); pressing the second polymer solution to form a foam layer(322); pressing the third polymer solution to form a light collection layer(323); and providing the diffusion layer, the foam layer, and the light collection layer between a pair of rollers and binding the diffusion layer, the foam layer, and the light collection layer so that the foam layer is positioned between the diffusion layer and the light collection layer.
Abstract:
A heat interception optical sheet, a manufacturing method thereof, a backlight assembly and an LCD having the same are provided to manufacture the heat interception optical sheet by applying a heat interception member to at least one side of an optical sheet, thereby preventing heat in a light source from being transferred to an LCD panel without adding a special member. A heat interception diffusion sheet(500) comprises a diffusion sheet(510), and a heat interception member(520). The heat interception member is formed in a lower surface of the diffusion sheet to prevent heat, generated from a light source(300), from being transferred to an LCD(Liquid Crystal Display) panel(100). The heat interception member is formed by mixing transparent conductive powders with a solvent. By hardening the heat interception member applied to the diffusion sheet, the heat interception diffusion sheet is formed.
Abstract:
A liquid crystal display is provided to prevent light leakage of a reflective sheet by using a reflective sheet unit having a light leakage preventing function without using a lower chassis for preventing light leakage, thereby reducing the cost for using the lower chassis while increasing light efficiency. Light sources(320) are arranged at a rear of a liquid crystal panel for supplying light to the liquid crystal panel. A reflective sheet unit(340) is installed at a rear of the light sources, having a reflective sheet(341) and a light leakage preventing film(342) formed at a back of the reflective sheet. A mold frame(160) supports an edge of the reflective sheet.
Abstract:
A diffusion member, a backlight unit comprising the diffusion member, and an LCD comprising the backlight unit are provided to improve the uniformity of an exiting light, thereby reducing the thickness of an optical sheet, by improving the structure of the diffusion member. A diffusion member(110) comprises a plurality of flat portions(112) and prism pattern portions(111) between the flat portions. The flat portions refract an incident light to output the refracted light. Each of the prism pattern portions has at least one V-shaped groove. The V-shaped groove of the prism pattern portion refracts a light, which has a larger incident angle than the light incident on the flat portions, in a vertical direction, thereby reducing the reduction rate of brightness.