LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF
First Claim
1. A liquid crystal display device comprisinga first substrate,a second substrate,a liquid crystal layer arranged between said first and second substrates,a first alignment film provided between said liquid crystal layer and said first substrate,a second alignment film provided between said liquid crystal layer and said second substrate,a pixel electrode and a common electrode provided for each pixel on a main face of said second substrate,a reflective display unit and a transmissive display unit provided for said each pixel,a retardation layer provided in a portion corresponding to said reflective display unit on the main face of said second substrate,a sealing material for sealing said liquid crystal layer provided between the peripheries of said first substrate and said second substrate in a manner of surrounding the substrates,a first polarizer placed on the outer surface of said first substrate, anda second polarizer placed on the outer surface of said second substrate, wherein:
- a material for forming said retardation layer is a liquid crystal monomer with acrylates containing a polymerization initiator and one or more members selected from a triplet quencher and a radical quencher added thereto, andan electric field which is approximately parallel with the substrate face of said second substrate is applied between said pixel electrode and said common electrode to drive the liquid crystal layer.
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Accused Products
Abstract
In the present invention, to realize a liquid crystal display device of high-definition transflective IPS system comprising an inner retardation plate (retardation layer) in a reflective display unit, the retardation layer is formed of liquid crystal monomers with acrylates containing a polymerization initiator and either one or both of a triplet quencher and a radical quencher added.
5 Citations
13 Claims
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1. A liquid crystal display device comprising
a first substrate, a second substrate, a liquid crystal layer arranged between said first and second substrates, a first alignment film provided between said liquid crystal layer and said first substrate, a second alignment film provided between said liquid crystal layer and said second substrate, a pixel electrode and a common electrode provided for each pixel on a main face of said second substrate, a reflective display unit and a transmissive display unit provided for said each pixel, a retardation layer provided in a portion corresponding to said reflective display unit on the main face of said second substrate, a sealing material for sealing said liquid crystal layer provided between the peripheries of said first substrate and said second substrate in a manner of surrounding the substrates, a first polarizer placed on the outer surface of said first substrate, and a second polarizer placed on the outer surface of said second substrate, wherein: -
a material for forming said retardation layer is a liquid crystal monomer with acrylates containing a polymerization initiator and one or more members selected from a triplet quencher and a radical quencher added thereto, and an electric field which is approximately parallel with the substrate face of said second substrate is applied between said pixel electrode and said common electrode to drive the liquid crystal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of manufacturing a liquid crystal display device in which a liquid crystal layer is nipped in a gap across which the first substrate and second substrate oppose each other, said first substrate and said second substrate are sealed at the outer peripheries of their display regions with a sealing material, said displaying region is constituted by a plurality of pixels which are arranged in a matrix array, and each of said pixels is provided with a reflective display unit and a transmissive display unit,
the method comprising the steps of forming an alignment film for retardation layer on the main face of said first substrate, and imparting alignment controllability to the alignment film for retardation layer, a retardation layer material application step in which a nematic liquid crystal monomer with acrylates having light curability containing a polymerization initiator and one or more members selected from a triplet quencher and a radical quencher added thereto in the manner of covering said alignment film for retardation layer is applied as a retardation layer material, an exposure step in which a portion of said retardation layer material corresponding to said reflective display unit is selectively exposed and cured, and a step of removing an unexposed portion in which a portion of said retardation layer material corresponding to said reflective display unit is removed.
Specification