Abstract:
PROBLEM TO BE SOLVED: To provide a display apparatus switchable between a transmissive mode and a reflective mode. SOLUTION: In the display apparatus, including a plurality of pixels arranged in a matrix shape, the pixels include a first substrate; a first polarizing plate provided on the first substrate, a second substrate; a liquid crystal layer disposed between the first and the second substrates; a second polarizing plate disposed between the first and second substrates and reflecting or transmitting an outer light or inner light; a backlight unit disposed under the second polarizing plate and irradiated with an internal light and a light absorbing layer disposed under the backlight unit. The display apparatus has the reflective mode that uses outer light to display an image and the transmissive mode by utilizing the internal light to display the image. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the contrast of a cholesteric liquid crystal display. SOLUTION: The display includes (a) a transparent substrate, (b) a state changing layer including polymer-dispersed cholesteric liquid crystals arranged on the transparent substrate to regulate first and second surfaces, having the first surface existing nearer the transparent substrate and having ≥2 stable optical states without electric fields, (c) a first transparent conductor arranged between the state changing layer and a transparent supporting body on the same display side of the state changing layer as the first surface, (d) a second conductor for changing the state of the cholesteric liquid crystals when the electric field is impressed between the first and second conductors existing on the second surface of the state changing layer and (e) a nonconductive electric field non-expansion layer containing pigment particles in the binder arranged between the state changing layer of the polymer-dispersed cholesteric liquid crystals and the second conductor to provide a light absorption layer. COPYRIGHT: (C)2004,JPO
Abstract:
Disclosed are a display panel and a display device. The display panel includes a quantum dot converter configured to convert light of a predetermined color emitted from a light source into light of a different color using a quantum dot unit and emit the converted light; and a light transmitter configured to transmit a part of the light of the predetermined color emitted from the light source and convert a remaining part of the light of the predetermined color into light of a different color and emit the converted light.
Abstract:
Liquid crystal modulator optical devices and more specifically shutters and smart windows are presented. The liquid crystal modulator devices are characterized by a reduced polymer content which is eliminated from the material composition of the liquid crystal layer and characterized by non-uniform electrode structures in the liquid crystal structure configured to generate spatially non-uniform electric fields and therefore non-uniform molecular reorientation of liquid crystal molecules. This arrangement advantageously makes light scattering electrically controllable.