Liquid crystal display assembly having the interference filter disposed corresponding exclusively to the green region
View Patent ↗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 light to the color filter, and having a allowable wavelength range allowing light having a wavelength range of a green color to be transmitted. With this configuration, the present invention provides an LCD assembly in which decrement of light-transmissivity is small, process stability is increased, and high chromaticity is realized.
1. An LCD assembly comprising: a TFT substrate; a color filter disposed above the TFT substrate and formed with red, green and blue regions; and an interference filter disposed corresponding to the green region with respect to a direction of emitting light to the color filter, and having an allowable wavelength range allowing light having a wavelength range of a green color to be transmitted, wherein a cell gap between the green region of the color filter and the TFT substrate is smaller than a cell gap between the red and blue regions of the color filter and the TFT substrate, and wherein the interference filter is disposed on the color filter and the interference filter is not a color filter.
2. The LCD assembly according to claim 1 , wherein the interference filter is disposed on an upper part or a lower part of the color filter.
3. The LCD assembly according to claim 1 , wherein the interference filter is made by selectively laminating a plurality of materials among TiO 2 , SiO 2 , ZnS, MgF 2 , CeF 2 and ZiO 2 .
4. The LCD assembly according to claim 3 , wherein the allowable wavelength range of the interference filter has spectrum property of a wavelength range from 490 nm to 580 nm.
5. The LCD assembly according to claim 2 , wherein the interference filter is made by selectively laminating a plurality of materials among TiO 2 ,SiO 2 , ZnS, MgF 2 , CeF 2 and ZiO 2 .
6. The LCD assembly according to claim 5 , wherein the allowable wavelength range of the interference filter has spectrum property of a wavelength range from 490 nm to 580 nm.
7. 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 comprising:
an interference filter disposed corresponding exclusively to the green region with respect to a direction of emitting light to the color filter, and having an allowable wavelength range allowing light having a wavelength range of a green color to be transmitted,
wherein no interference filter is disposed corresponding to the blue and red regions with respect to a direction of emitting light to the color filter.