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Projection type image display device

An image display and image technology, applied in projection devices, image communication, television, etc., to achieve the effect of simple structure

Active Publication Date: 2017-05-31
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the projector installed on the ceiling and used, there are various problems that should be studied such as the necessity of a dedicated holder, wiring work, storage method, miniaturization of the device, ease of operation, convenience of use, and aesthetics. question

Method used

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  • Projection type image display device

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach 〕

[0033] 1. Structure of projection type image display device

[0034] Hereinafter, the projection type video display device will be described using the drawings. figure 1 is a perspective view of the appearance of a projection-type video display device, figure 2 is a front view of the appearance of a projection type image display device, image 3 It is a block diagram showing the structure of the projection type video display device.

[0035] Such as figure 1 as well as figure 2 As shown, the projection display device 100 includes a first housing 101 mainly housing optical components, and a second housing 102 mainly housing a power supply unit (power board). The second housing 102 can be connected to a wiring duct rail (duct rail) 90 for lighting. The second housing 102 receives a power supply voltage from the wiring guide rail 90 , converts it into a predetermined voltage, and supplies it to the first housing 101 .

[0036] The first frame body 101 and the second frame...

no. 2 Embodiment approach 〕

[0065] use Figure 9 ~ Figure 11 Another configuration inside the first housing of the projection type image display device according to the present disclosure will be described. Hereinafter, differences from the first embodiment will be mainly described.

[0066] 1. Optical structure

[0067] Figure 9 It is a schematic diagram explaining the optical structure of the projection type image display device 200 of the second embodiment, Figure 10 as well as Figure 11 It is a schematic diagram illustrating the cooling structure of the projection type image display device 200 . The projection display device 200 of this embodiment further includes, in the first housing, a dresser wheel 248 for generating colored light with higher purity for each of red, blue, and green.

[0068] Such as Figure 9 As shown, the projection type image display device 200 has: a light source unit 210; an image generator 260 that generates image light according to an image input signal; an illumin...

no. 3 Embodiment approach 〕

[0091] use Figure 12 Still another structure inside the first housing of the projection type image display device according to the present disclosure will be described. Hereinafter, differences from the second embodiment will be mainly described.

[0092] Figure 12 It is a schematic diagram illustrating the optical structure of the projection type image display device 300 . In this embodiment, the arrangement of the phosphor wheels 336 is different from that of the second embodiment.

[0093] Such as Figure 12 As shown, the projection type image display device 300 has: a light source unit 310; an image generating unit 360 that generates image light according to an image input signal; an illumination unit 320 that guides light from the light source unit 310 to the image generating unit 360; The video light generated by the unit 360 is projected onto a projection unit 380 on a screen (not shown).

[0094] In the light source unit 310 , eight semiconductor laser elements ...

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Abstract

A projection-type image display device includes a light source unit, an image generating unit configured to generate image light according to an image input signal, an illuminating unit configured to guide the light from the light source unit to the image generating unit, a projecting unit configured to project the image light generated by the image generating unit, a housing that houses the light source unit, the image generating unit, the illuminating unit, and the projecting unit, a first radiator plate thermally connected to the light source unit, a second radiator plate thermally connected to the image generating unit, and a single fan disposed at an end of the housing, for taking in external air to the interior of the housing to send the air to the first and the second radiator plates.

Description

technical field [0001] The present disclosure relates to a projection type image display device equipped with a cooling mechanism. Background technique [0002] Currently, various projectors are widely used as projection-type video display devices that magnify and project images, etc., on a screen. According to the image signal, the projector modulates the light emitted from the light source through a digital micromirror device (digital micromirror device, DMD) or a spatial light modulation element such as a liquid crystal display element, and projects it on a screen. [0003] Projectors that are installed on ceilings and project images onto bottom surfaces and walls are also being developed in various ways. In the projector installed on the ceiling and used, there are various problems that should be studied such as the necessity of a dedicated holder, wiring work, storage method, miniaturization of the device, ease of operation, convenience of use, and aesthetics. questio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/16G03B21/00G03B21/14H04N5/74
CPCG03B21/16G03B21/005G03B21/145H04N9/3144
Inventor 纳田慎也高木敦史
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD