Liquid crystal display device
View Patent ↗A liquid crystal display device for displaying an image by changing orientation of a liquid crystal layer sealed between two substrates includes a lower substrate having a microstructure which outputs light incident on a side surface of the lower substrate to an upper surface of the lower substrate, a light source emitting light to the side surface of the lower substrate, a selective reflection panel provided on the upper surface of the lower substrate to reflect light having a predetermined incident angle or more and transmit the remaining light, and a reflection panel provided under the lower substrate.
1. A liquid crystal display device for displaying an image by changing orientation of a liquid crystal layer sealed between two substrates, the device comprising:
a lower substrate having a microstructure which outputs light incident on a side surface of the lower substrate to an upper surface of the lower substrate;
a light source emitting light to the side surface of the lower substrate;
a selective reflection panel provided on the upper surface of the lower substrate to reflect light having a predetermined incident angle or more and transmit the remaining light; and
a reflection panel provided under the lower substrate,
wherein the selective reflection panel is configured to reflect the light having an incident angle that is greater than 42° with respect to a plane perpendicular to the upper surface of the lower substrate.
2. A liquid crystal display device for displaying an image by changing orientation of a liquid crystal layer sealed between two substrates, the device comprising:
a lower substrate having a microstructure which outputs light incident on a side surface of the lower substrate to an upper surface of the lower substrate;
a light source emitting light to the side surface of the lower substrate;
a selective reflection panel provided on the upper surface of the lower substrate to reflect light having a predetermined incident angle or more and transmit the remaining light; and
a reflection panel provided under the lower substrate,
wherein the selective reflection panel is configured to reflect the light having an incident angle that is greater than 30° with respect to a plane perpendicular to the upper surface of the lower substrate.
3. A liquid crystal display device for displaying an image by changing orientation of a liquid crystal layer sealed between two substrates, the device comprising:
a lower substrate having a microstructure which outputs light incident on a side surface of the lower substrate to an upper surface of the lower substrate;
a light source emitting light to the side surface of the lower substrate;
a selective reflection panel provided on the upper surface of the lower substrate to reflect light having a predetermined incident angle or more and transmit the remaining light; and
a reflection panel provided under the lower substrate,
wherein the microstructure is a holographic pattern having a diffraction grating structure,
wherein the holographic pattern is formed at at least one of a lower surface and the upper surface of the lower substrate, and
wherein the holographic pattern is formed at the upper surface of the lower substrate.