Self-heat-conduction light valve module and light valve heat dissipation device
A technology of a heat sink and a light valve, applied in the field of projectors, can solve the problems that the light valve cannot adapt to light irradiation, the projector cannot output brightness, and the air-cooled heat transfer coefficient is not high, so as to improve visual defects, increase user satisfaction, The effect of uniform temperature distribution
Pending Publication Date: 2020-05-22
NANHUA INTELLIGENT PRECISION MACHNE (SHENZHEN) CO LTD
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Problems solved by technology
Because the air-cooled heat transfer coefficient is relatively low, the heat exchange area is fixed, and the temperature difference between hot and cold fluid (air) is restricted by factors such as the characteristics of the light valve and the operating environment temperature, the air-cooled effect is very general, and the light valve cannot adapt to stronger The light hits and the projector cannot output higher brightness
Method used
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Embodiment 2
[0051] Such as Figure 1-6 As shown, a light valve cooling device 100 provided in this embodiment includes the self-conducting heat-conducting light valve module 1 described in Embodiment 1, and also includes a thermal diffusion Facilities 2. The heat of the self-conducting heat light valve module 1 is transferred to the heat diffusion facility 2 and diffused into the air through the heat diffusion facility 2 .
[0052] In this embodiment, the LCD light valve 13, the incident polarizer 4, and the outgoing polarizer 5 absorb the heat converted by the light, and quickly conduct it to the surfaces of the first transparent graphene heat-conducting film 11 and the second transparent graphene heat-conducting film 14. The inner direction is quickly transmitted away, and quickly transmitted to the panel frame 12 and the thermal diffusion facility 2, and diffused into the air through the thermal diffusion facility 2, so as to realize the purpose of rapid heat dissipation of the LCD li...
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The invention discloses a self-heat-conduction light valve module. The self-heat-conduction light valve module comprises a first transparent graphene heat conduction film, a panel frame, an LCD lightvalve and a second transparent graphene heat conduction film. The two end faces of the panel frame are a first plane and a second plane respectively, a rectangular through hole is formed in the centerof the panel frame, and the LCD light valve is installed in the rectangular through hole. The first transparent graphene heat conduction film is attached to the first plane and the incident surface of the LCD light valve, and the second transparent graphene heat conduction film is attached to the second plane and the emergent surface of the LCD light valve. The invention further provides a lightvalve heat dissipation device. The light valve heat dissipation device comprises a heat diffusion facility installed on the peripheral wall of the self-heat-conduction light valve module. By means ofthe ultrahigh heat conduction capacity of the transparent graphene heat conduction film, efficient heat dissipation and temperature equalization of the LCD light valve are achieved, the service life of the LCD light valve is effectively prolonged, and the LCD light valve can adapt to stronger light irradiation.
Description
technical field [0001] The invention relates to the technical field of projectors, in particular to a self-conducting heat light valve module and a light valve cooling device. Background technique [0002] When the projector lighting system illuminates the light valve, there is always a part of the light that is absorbed by the light valve and converted into Joule heat, and the output brightness of the projector depends on how much light shines on the light valve in the same optical system. To output higher brightness, stronger light is needed to irradiate the light valve, and the inevitable result of stronger light irradiation is that the light valve generates more heat, which requires a stronger heat dissipation capacity to make the light valve work at the allowable temperature Within the range, whether the light valve can work normally depends entirely on the heat dissipation level of the light valve. [0003] In comparison, the heat dissipation of the light valve of the...
Claims
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IPC IPC(8): G03B21/16G03B21/00H04N9/31
CPCG03B21/16G03B21/006H04N9/3144G02F1/133385G02F1/133382G02F1/133528H05K7/2039H05K7/20963H05K1/0204C08K3/042
Inventor 郭瀚文
Owner NANHUA INTELLIGENT PRECISION MACHNE (SHENZHEN) CO LTD