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US 2006/0131522 A1Published application
Optical film, method of manufacturing the same, and flat fluorescent lamp and display device having the same
OwnerJin-Sung Choi, Jong-Dae Park +1inventors
InventorsJin-Sung Choi, Jong-Dae Park, Dong-Hoon Kim
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Abstract
An optical film includes liquid crystal layers and adhesive layers. The liquid crystal layers are disposed at a base substrate. Each of the liquid crystal layers reflects light having a first wavelength and transmits light having a wavelength different from the first wavelength. Each of the adhesive layers is disposed between adjacent ones of the liquid crystal layers to combine the liquid crystal layers.
Claims46
An optical film comprising:
- liquid crystal layers disposed at a base substrate, each of the liquid crystal layers reflecting light having a first wavelength and transmitting light having a wavelength different from the first wavelength;
- and
- adhesive layers, each of the adhesive layers being disposed between adjacent ones of the liquid crystal layers to combine the liquid crystal layers.
A method of manufacturing an optical film, comprising:
- disposing a first liquid crystal layer at a base substrate, the first liquid crystal layer including a cholesteric liquid crystal and a vertical alignment liquid crystal mixed in a first ratio, the first liquid crystal layer reflecting light having a first wavelength and transmitting light having a wavelength different from the first wavelength:
- disposing a second liquid crystal layer proximate to the first liquid crystal layer, the second liquid crystal layer including the cholesteric liquid crystal and the vertical alignment liquid crystal mixed in a second ratio, the second liquid crystal layer reflecting light having a second wavelength and transmitting light having a wavelength different from the second wavelength:
- disposing a third liquid crystal layer proximate to the second liquid crystal layer, the third liquid crystal layer including the cholesteric liquid crystal and the vertical alignment liquid crystal mixed in a third ratio, the third liquid crystal layer reflecting light having a third wavelength and transmitting light having a wavelength different from the third wavelength:
- and
- disposing a phase shift layer proximate to the third liquid crystal layer.
2 more elements
A flat fluorescent lamp comprising:
- a lamp body including discharge spaces arranged parallel to each other and extended along a first direction;
- electrodes disposed at opposite ends of an outer surface of the lamp body, each of the electrodes being extended along a second direction that is substantially perpendicular to the first direction;
- and
- a reflective polarizing layer disposed at the lamp body, the reflective polarizing layer reflecting a first portion of light generated by the lamp body and transmitting a second portion of light generated by the lamp body.
1 more element
A flat fluorescent lamp comprising:
- a lamp body including discharge spaces arranged parallel to each other and extended along a first direction, the lamp body emitting light generated by discharge gas disposed in the discharge spaces through a light-exiting surface of the lamp body, the light-exiting surface including a light-diffusing material in order to diffuse light;
- and
- external electrodes disposed at an outer surface of the lamp body and extended along a second direction that is substantially perpendicular to the first direction.
A display device comprising:
- a flat fluorescent lamp including:
- a lamp body including discharge spaces arranged parallel to each other and extended along a first direction;
- first electrodes disposed at opposite ends of a first outer surface of the lamp body, each of the first electrodes being extended along a second direction that is substantially perpendicular to the first direction;
- and
- a reflective polarizing layer disposed on the lamp body, the reflective polarizing layer reflecting a first portion of light generated by the lamp body and transmitting a second portion of light generated by the lamp body;
- and
- a display panel that displays images using the second portion of light.
4 more elements
Dependencies are inferred from the claim text.