Projecting camera LCD cooling down mechanism
A cooling mechanism and projector technology, applied in the field of projectors, can solve the problems affecting the normal operation and service life of a liquid crystal panel, and achieve the effect of extending the service life, ensuring the cooling effect, and ensuring the normal operation.
Inactive Publication Date: 2008-01-30
XINCHENG ZHIDIAN NETWORK TECH CO LTD SHANGHAI +1
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Problems solved by technology
If the heat is not dissipated in time, it will seriously affect the normal operation and service life of the LCD panel.
Method used
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[0011] The liquid crystal cooling mechanism of the projector of the present invention is arranged in the casing of the projector, and is mainly used for heat dissipation and cooling of the green light liquid crystal panel, the red light liquid crystal panel and the blue liquid crystal panel installed in the casing. The polarization converter and color combination prism can also be cooled.
[0012] The projector involved in the present invention is a single-lens transmissive liquid crystal panel projector. The electro-optic modulation device (cooling object) of the projector is shown in Fig. 1, including a color combination prism 1, a green light liquid crystal panel 2, a blue liquid crystal panel 3 and red light liquid crystal panel 4. Among them, the green light liquid crystal panel 2 is arranged behind the color combination prism 1, the green light liquid crystal panel 2 is provided with a polarizing plate 5 on the front and rear sides, the blue liquid crystal panel 3 is arrange...
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The invention provides a liquid crystal cooling device of a projection machine, comprising a green light liquid crystal board radiating fan, a blue light liquid crystal board radiating fan and a red light liquid crystal board radiating fan which are used for respectively cooling three liquid crystal boards, and a green light liquid crystal board radiating air channel, a blue light liquid crystal board radiating air channel and a red light liquid crystal board radiating air channel. Air inlets of three radiating air channels are respectively connected with air outlets of three radiating fans, and air outlets of the three radiating air channels are respectively and vertically upward arranged below three liquid crystal boards. The liquid crystal cooling device of the projection machine of the invention adopts the corresponding radiating fans and radiating air channels aiming at each liquid crystal board so as to guarantee a cooling effect for each liquid crystal board and also guarantee a normal running of the liquid crystal board and to prolong the service life of the liquid crystal board.
Description
Technical field [0001] The invention relates to a projector, in particular to a liquid crystal cooling mechanism of the projector. Background technique [0002] Projectors are widely used in education, business and homes. A common projector generally includes a housing and a light engine, a circuit board, a light source, and a corresponding heat dissipation mechanism arranged in the housing. According to the number of lenses used in the light engine, projectors can be divided into single-lens projectors and three-lens projectors. In the design, the white light generated by the light source is generally separated into red, green, and blue light, and the three-color light is modulated through three liquid crystal light valves. The modulated three-color light is designed according to the single lens or the three-lens design. Use different methods for processing. In a single-lens projector, the three-color light is combined with color-combining elements and projected by a single lens...
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Login to View More IPC IPC(8): G03B21/16G03B21/00G02F1/13
Inventor 孙晓宇
Owner XINCHENG ZHIDIAN NETWORK TECH CO LTD SHANGHAI