发明名称 |
Display device |
摘要 |
A light guide plate receives light emitted from the light source, and emits the light from a light emitting surface. A prism sheet reflects light at a predetermined angle among the light emitted from the light emitting surface, allows the reflected light to enter the light guide plate, and transmits light at another angle. A polarization control element is provided between a 1/4 wavelength plate and a reflection-type liquid crystal display element so as to be parallel to the light emitting surface. The polarization control element splits the light emitted from the 1/4 wavelength plate into first polarized light allowed to transmit as illumination light that enters the reflection-type liquid crystal display element and second polarized light reflected so as to enter the light guide plate, and reflects the light modulated and emitted by the reflection-type liquid crystal display element toward an imaging lens. |
申请公布号 |
US9235050(B2) |
申请公布日期 |
2016.01.12 |
申请号 |
US201414462934 |
申请日期 |
2014.08.19 |
申请人 |
JVC KENWOOD CORPORATION |
发明人 |
Kobayashi Manabu |
分类号 |
G02F1/1335;G02B27/01;G02B27/18;G02B27/28;H04N5/232;F21V8/00;G02B23/14;G02B5/30 |
主分类号 |
G02F1/1335 |
代理机构 |
Nath, Goldberg & Meyer |
代理人 |
Nath, Goldberg & Meyer ;Meyer Jerald L. |
主权项 |
1. A display device comprising:
a light source; a light guide plate configured to receive light emitted from the light source, and emit the light from a light emitting surface; a prism sheet configured to reflect light at a predetermined angle among the light emitted from the light emitting surface, allow the reflected light to enter the light guide plate again, and transmit light at another angle; a 1/4 wavelength plate configured to receive the light that has transmitted through the prism sheet; a reflection-type liquid crystal display element that is provided at an inclination with respect to the light emitting surface, and configured to modulate and emit received illumination light; a polarization control element that is provided between the 1/4 wavelength plate and the reflection-type liquid crystal display element so as to be parallel to the light emitting surface, configured to split the light emitted from the 1/4 wavelength plate into first polarized light and second polarized light, and reflect the light modulated and emitted by the reflection-type liquid crystal display element toward an imaging lens; and a combiner configured to present the light as a virtual image reflected by the polarization control element and emitted from the imaging lens, wherein the first polarized light is light allowed to enter, as the illumination light, the reflection-type liquid crystal display element, the light being emitted from the 1/4 wavelength plate, and the second polarized light is light reflected so as to be allowed to enter the 1/4 wavelength plate again, the light being emitted from the 1/4 wavelength plate. |
地址 |
Yokohama-shi, Kanagawa JP |