Title:
DISPLAY DEVICE AND PROJECTION-TYPE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/145169
Kind Code:
A1
Abstract:
According to the present invention, a liquid crystal display element (11) has a pixel region for optically modulating incident illumination light (L1) for each pixel. A heat sink (12) dissipates heat from the liquid crystal display element (11). A first mask member (13) is fixed to the heat sink (12), is formed from a material having lower thermal conductivity than the heat sink (12), has a first opening (131) that corresponds to the pixel region, and masks unwanted light. A second mask member (15) is positioned in a position that is further separated from the liquid crystal display element (11) than that of the first mask member (13), is fixed to the heat sink (12), is formed from a material having higher thermal conductivity than the first mask member (13), has a second opening (151) that is as large as or larger than the first opening (131), and masks unwanted light.
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Inventors:
AIZAWA TADASHI (JP)
Application Number:
PCT/JP2020/047939
Publication Date:
July 22, 2021
Filing Date:
December 22, 2020
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
G02F1/1333; G02F1/13; G03B21/00; G03B21/16
Foreign References:
| JP2018036447A | 2018-03-08 | |||
| JP2011180325A | 2011-09-15 | |||
| JP2016012003A | 2016-01-21 | |||
| JP2013054145A | 2013-03-21 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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