Red light semiconductor area array light source device for laser display

Abstract

The invention discloses a red light semiconductor area array light source device for laser display. The red light semiconductor area array light source device for laser display comprises a VCSEL area array and a microlens array, wherein the VCSEL area array at least comprises a plurality of VCSEL units which are used for emitting circular laser beams, and the microlens array is formed by a plurality of microlens and used for performing collimation rounding on the laser beams output by the VCSEL area array and outputting the laser beams. The light source device can reduce optical elements in a projection display optical path, shorten the length of a lighting optical path, and improve the optical energy utilization rate. In addition, the VCSEL area array can reduce interference between VCSEL lasers and weaken laser speckles, and therefore projection display quality is improved. According to the red light semiconductor area array light source device, the area array light source packaging technology and VCSEL are adopted, a two-dimensional array is easy to integrate, and the defect that power transmitted by a single tube is poor can be overcome. The VCSEL is available in wafer test, reduces cost greatly and is easy in modularization and packaging.

Description

technical field [0001] The invention belongs to the field of semiconductor laser light sources for laser display, in particular to a red light semiconductor surface array light source device for laser display and a manufacturing method thereof. Background technique [0002] At present, the laser display using semiconductor laser as the light source is regarded as the fourth generation display of the color revolution due to its large color gamut, rich colors, high color saturation, and strong expressiveness; the life of the light source is as long as tens of thousands of hours; and the power consumption is low. Technology, known as "the revolution in the history of human vision". Compared with solid-state lasers, it is compact in size and less affected by temperature. With the commercialization of the direct lasing green semiconductor laser LD, portable (compact), high-efficiency laser display systems will seize markets such as home theaters, miniature projection displays, a...

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Problems solved by technology

[0009] The present invention aims to solve the problems of the existing laser projection display system. Due to the large volume of the laser light source, the difficulty in shaping the output beam, the complexity of the uniform light system, and the unsatisfactory decoherence effect, the projection display optical system is large in size, low in light energy utilization, and power Large, and the strong laser interference leads to the formation of speckles and other problems

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