Laser projection display system based on full-semiconductor laser
A laser projection and display system technology, which is applied in the direction of using projection device image reproducer, optics, instruments, etc., can solve the problems of high cost, large volume, and difficulty in the application of full semiconductor laser display technology, so as to reduce the volume and reduce the Effect of light source cost
Inactive Publication Date: 2012-06-27
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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However, the current cost of semiconductor green lasers is relatively high, and the volume is relatively large when outputting high power, which brings difficulties to the application of all-semiconductor laser display technology
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[0029] like figure 1 shown, figure 1 It is a schematic structural diagram of a laser projection display system based on an all-semiconductor laser provided by the present invention. The laser projection display system includes a laser light source module, an optical path module, a circuit module and a light sensor module. Among them: the laser light source module is used to provide the required red, blue and green lasers to the projection display system, and a part of the blue laser is used to excite the yellow-green fluorescence; the optical path module is used to first perform the laser light provided by the laser light source module. Even light, imaging and other processing, irradiate the light on the chip, and then transmit the light modulated by the chip to the projection lens to form an image output; the circuit module is used for, on the one hand, according to the external audio, video and other signals. The chip adjusts accordingly; on the other hand, according to the...
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The invention discloses a laser projection display system based on a full-semiconductor laser. The laser projection display system comprises a laser light source module, a light path module, a circuit module and an optical sensor module, wherein the laser light source module is used for providing three required lasers, namely red laser, blue laser and green laser, for the projection display system; the light path module is used for performing light unification and imaging processing on light provided by the laser light source module, making the light illuminated on chips, transmitting the light modulated by the chips to a projection lens, and forming an image for output; the circuit module is used for regulating the chips in the light path module according to external audio and video signals and regulating the power of the three lasers in the laser light source module according to a certain algorithm and a conditioning signal generated by an optical sensor; and the optical sensor module is used for detecting the brightness of an external environment and the brightness of an image output by the system, forming a conditioning signal according to a certain algorithm and transmitting the conditioning signal to the circuit module. By the laser projection display system, manual or automatic regulation of the color gamut and the brightness is realized.
Description
technical field [0001] The invention relates to the technical field of laser projection display, in particular to a laser projection display system based on an all-semiconductor laser that can realize dynamic color gamut and brightness. Background technique [0002] With the progress of society, people have higher and higher requirements for visual effects. Due to the advantages of wide color gamut, long light source life and good color performance, laser display has attracted widespread attention, and may become an important display technology for the next generation. [0003] Laser projection display systems need high-power three-color lasers to output high-brightness images. The existing laser projection display systems mainly use high-power solid-state lasers. Due to the relatively large volume and relatively low light efficiency of high-power solid-state lasers, the application of laser displays in home and business fields is limited. [0004] However, semiconductor ...
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IPC IPC(8): G03B21/14G03B21/20G02B27/18H04N9/31
Inventor 张运方王锐施安存段靖远刘育梁
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI