Title:
PROJECTION DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/090334
Kind Code:
A1
Abstract:
This projection display device (100) comprises a reflective liquid crystal display element (1), a heat sink (2), a heat generation source (3), and a cooling fan (5). In at least one direction among the long side direction and the short side direction of the reflective liquid crystal display element (1), the length of the reflective liquid crystal display element (1) is defined as L1, the length of the heat generation source (3) as L3, and the plate thickness of a base (21) of the heat sink (2) as t. The reflective liquid crystal display element (1) and the heat generation source (3) face each other with the base (21) therebetween such that the length L3 of the heat generation source (3) is positioned within the length L1 of the reflective liquid crystal display element (1). The length L3 of the heat generation source (3) satisfies L3≥L1-2t.
More Like This:
| JPH1166926 | LIGHTING SYSTEM AND PROJECTING OPTICAL DEVICE |
| JP2015192280 | CHARACTER DISPLAY SYSTEM AND PROJECTOR |
| WO/2018/142589 | LIGHT SOURCE DEVICE AND PROJECTION TYPE DISPLAY DEVICE |
Inventors:
KONO TOSHIRO (JP)
Application Number:
PCT/JP2023/037956
Publication Date:
May 02, 2024
Filing Date:
October 20, 2023
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
G03B21/00; G03B21/16; H01L23/467; H05K7/20
Domestic Patent References:
| WO2021157452A1 | 2021-08-12 | |||
| WO2018008246A1 | 2018-01-11 |
Foreign References:
| JP2009048043A | 2009-03-05 | |||
| JP2014211549A | 2014-11-13 | |||
| JP2014006369A | 2014-01-16 | |||
| JP2004157396A | 2004-06-03 | |||
| JP2008170762A | 2008-07-24 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
Download PDF:
Previous Patent: RESIN ADDITIVE AND RESIN COMPOSITION CONTAINING SAME
Next Patent: AGRICULTURAL WORK VEHICLE AND CONTROL SYSTEM
Next Patent: AGRICULTURAL WORK VEHICLE AND CONTROL SYSTEM