Light source device based on liquid crystal box polarization conversion and laser display
A light source device and polarization conversion technology, which is applied to lighting devices, components of lighting devices, optics, etc., can solve problems such as increasing costs and increasing difficulty in making fluorescent color wheels, and achieve the goal of reducing the probability of damage and reducing costs Effect
Inactive Publication Date: 2015-05-06
SHENZHEN ESTAR DISPLAYTECH
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Problems solved by technology
[0004] However, this method often requires precise control of the coating position, gap and shape of the phosphor powder, which makes the production of the fluorescent color wheel more difficult; and when there are problems such as chromaticity and color temperature deviation, the only way to adjust it is by replacing the fluorescent color wheel. output of the light source, thereby increasing the cost
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[0022] refer to figure 1 , the structure diagram of the first embodiment of the light source device based on the polarization conversion of the liquid crystal cell in the present invention, the light source device includes:
[0023] The laser light source 101 is used to generate the first color laser beam 110; the liquid crystal cell 103 is used to convert the first color laser beam 110 into the first polarized beam 111 or the second polarized beam output 122; the fluorescent color wheel group 105 is used for The second polarized light beam 122 is converted into the second color laser beam 112 or the third color laser beam 113; the polarizing beam splitter 104 is used to split the first polarized light after receiving the first polarized light 111 or the second polarized light 112 111 projecting output, or projecting the second polarized light 122 to the fluorescent color wheel set 105; the light source device at least sequentially outputs the first polarized light beam 111 wi...
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The invention discloses a light source device based on a liquid crystal box polarization conversion and a laser display. The light source device comprises a laser source, a liquid crystal box, a fluorescence color wheel group and a polarization beam splitter, wherein the laser source is used for generating a first-color laser beam; the liquid crystal box is used for converting the first-color laser beam into a first polarized beam or a second polarized beam and outputting the first polarized beam or the second polarized beam; the fluorescence color wheel group is used or converting the second polarized beam into a second-color laser beam or a third-color laser beam; the polarization beam splitter is used for projecting and outputting first polarized light after receiving first polarized light or second polarized light, or projecting the second polarized light to the fluorescence color wheel group. The light source device at least outputs the first polarized beam with a first color, the second-color laser beam and the third-color laser beam sequentially. By virtue of the mode, the light source device has the advantages that the laser beams with three types of colors can be output by one laser source and one fluorescence color wheel, so that the fluorescence color wheel manufacturing difficulty is reduced and the cost is lowered.
Description
technical field [0001] The invention relates to the field of field display, in particular to a light source device and a laser display based on polarization conversion of a liquid crystal cell. Background technique [0002] Laser TV uses a semiconductor laser light source to generate continuous laser light with three wavelengths of red, green and blue as the light source of color laser TV, and controls the three-color laser scanning image through TV signals. [0003] Among them, the light source system of the laser TV generally adopts a monochromatic laser light source, and then excites the monochromatic laser light source and converts lasers of three colors, so as to realize continuous output of three-color lasers. This solution requires a fluorescent color wheel with multiple optical functions, and the output of three colors is controlled by the ratio and angle of coating different color phosphors on the fluorescent color mess. [0004] However, this method often requires...
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IPC IPC(8): G02F1/01F21V13/00
CPCG02F1/1336G02F1/133614
Inventor 刘美鸿母林纪超超
Owner SHENZHEN ESTAR DISPLAYTECH