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Light synthesis control system and projector

A control system and controller technology, applied in optics, instruments, projection devices, etc., can solve the problems of low red content, the gap between color coordinates and color gamut standards, and the low proportion of red light brightness.

Active Publication Date: 2017-02-01
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, for the system, the proportion of red light brightness in the overall brightness is low, that is, the Red content is low, which causes a gap between the color coordinates and the color gamut standards such as REC.709 or DCI

Method used

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  • Light synthesis control system and projector
  • Light synthesis control system and projector
  • Light synthesis control system and projector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Please refer to figure 1 , this implementation discloses a light combining control system (hereinafter referred to as the control system), which includes a light source module, a spatial light modulator 410 and a controller 411 . Instructions are given below.

[0025] The light source module is used to emit the primary color light to be compensated and the primary color compensation light, and the primary color compensation light is used to synthesize the first primary color light with the primary color light to be compensated. In some embodiments, the light source module may include a light emitting component and a wavelength converter 405 . The light emitting component may include an excitation light source 401 for emitting excitation light and a compensation light source 402 for emitting compensation light. The excitation light source 401 can be a blue light emitting diode, an ultraviolet light emitting diode or an array thereof, or a blue laser diode, an ultraviol...

Embodiment 2

[0034] Please refer to Figure 5 , this embodiment proposes a light-combining control system, which differs from Embodiment 1 in that the wavelength converter 405 in Embodiment 1 is a four-segment type, while the wavelength converter 405 in this embodiment is a six-segment type , including a green phosphor segment 405G, a blue scatterer segment 405B, an orange phosphor segment 405O, and three scatterer segments 405S, wherein the green phosphor segment 405G, the blue scatterer segment 405B and the orange phosphor segment 405O constitute The primary color light is segmented, and the three-scattering body segment 405S constitutes the compensation light segment. In a preferred embodiment, two of the three segments of the green phosphor segment 405G, the blue scatterer segment 405B and the orange phosphor segment 405O are There is a dispersing body segment 405S between the two, therefore, these three dispersing body segments 405S can be understood as a three-segment wavelength conv...

Embodiment 3

[0038] In some other embodiments, the primary color light to be compensated and the primary color compensation light may not be sequentially emitted to achieve light combination, but simultaneously emitted to achieve light combination, which will be described in detail below.

[0039] In this example, if Figure 8 As shown, the control system includes a light source module, a spatial light modulator and a controller 511, which will be described in detail below.

[0040] The light source module may include a light emitting component and a wavelength converter 505 . In a specific embodiment, the light emitting component may include an excitation light source 501 for emitting excitation light and a compensation light source 502 for emitting compensation light. The excitation light source 501 may be a blue light emitting diode, and the compensation light source 502 may be a red laser diode. The wavelength converter 505 is located on the optical path of the excitation light and th...

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PUM

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Abstract

The application discloses a light synthesis control system and a projector. The control system comprises a light source module for emitting a to-be-compensated primary light and primary compensation light for synthesizing first primary light with the to-be-compensated primary light, a controller for receiving at least a first path signal including an image signal of a first primary light signal and a second part signal including an image signal of a first primary light signal, and a spatial light modulator, connected with the controller electrically, being used for modulating the to-be-compensated primary light based on the first primary light signal in the first path signal received by the controller and modulating the primary compensation light according to the first primary light signal in the second path signal received by the controller. According to the application, the to-be-compensated primary light and the primary compensation light are modulated respectively according to the first primary light signals in the two-path signals, thereby realizing first primary light with the proper synthesized brightness and color.

Description

technical field [0001] The present application relates to the field of optical technology, in particular to a projection display field. Background technique [0002] At present, spatial light modulators are widely used in the field of projection display, among which the digital micromirror device (DMD, Digital Micromirror Device) has the characteristics of fast response speed and the ability to realize color projection display with time-sequentially switched primary color light. Large manufacturers have conducted a lot of research on single-chip DMD projection systems. An important topic in the research of a single-chip DMD projection system is the light source of the projector. US Patent US7547114B2 provides a method for semiconductor lasers to excite different fluorescent pink segments on the color wheel to form different primary color lights. This method has high light efficiency and optical The advantage of small expansion, so it develops rapidly and becomes an ideal ch...

Claims

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Application Information

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IPC IPC(8): G03B21/20
CPCG03B21/00G03B21/20
Inventor 胡飞郭祖强李屹
Owner APPOTRONICS CORP LTD
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