Projection equipment for realizing full-color DLP through dual-channel LED

A projection equipment, dual-channel technology, applied in the field of dual-channel LED to realize full-color DLP projection equipment, can solve the problems of high cost and power consumption

Inactive Publication Date: 2019-08-27
英锐科技(深圳)有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing technical problems, the present invention provides a dual-channel LED to realize full-color DLP projection equipment, which solves the problem that the power of the existing DLP projection equipment adjusts the color by adjusting the duty cycle of the three channels, so that the cost and power consumption are relatively low. Higher, not suitable for occasions with low color requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Projection equipment for realizing full-color DLP through dual-channel LED
  • Projection equipment for realizing full-color DLP through dual-channel LED
  • Projection equipment for realizing full-color DLP through dual-channel LED

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 , the present embodiment provides a dual-channel LED to realize full-color DLP projection equipment, which includes a fluorescent film, an optical machine body, an LED driver module, and a controller, and may also include an acquisition module (i.e., a voltage and current acquisition module) and a receiver .

[0043] The fluorescent film is provided with fluorescent powder, and the fluorescent powder has at least three colors, and the three colors are R, G, and B respectively. In this embodiment, the fluorescent film has a fluorescent layer, and the number of the fluorescent layer is at least one, preferably, the number of the fluorescent layer is two. The fluorescent powder is arranged in the fluorescent layer, and the fluorescent powder can convert external energy into light, and can emit light of various colors. The fluorescent powder in this embodiment is a fluorescent powder excited by a light beam, and it is in the form of a powder. It is a photolumin...

Embodiment 2

[0058] see Figure 4 , this embodiment provides a full-color DLP projection device realized by dual-channel LEDs, which adds a part of the circuit structure on the basis of Embodiment 1. Wherein, the LED driving module also includes MOS transistors Q6 and MOS transistors Q7 each having eight pins, resistors R1, R2, capacitors C2, C3, and diodes D1, D2. Of course, in some embodiments, the foregoing circuit devices may also belong to part of the circuit structure in the main body of the optical machine.

[0059] The same end of the resistors R1 and R2, the negative poles of the diodes D1 and D2, and the positive poles of the UV lamp and LED2 are all connected to the positive output terminal of the power supply module. One end of the capacitor C2 is connected to the other end of the resistor R1, and one end of the capacitor C3 is connected to the other end of the resistor R2. The anode of the diode D4 is connected to one end of the resistor R15, and the cathode is connected to ...

Embodiment 3

[0062] see Figure 5 , this embodiment provides a dual-channel LED to achieve full-color DLP projection equipment, which specifies the circuit structure of the acquisition module (ie, the voltage and current acquisition module) on the basis of Embodiment 2. Wherein, the voltage sampling circuit includes resistors R4, R8 and capacitor C4, and the current sampling circuit includes resistor R15.

[0063] One end of the resistor R4 is connected to the positive output terminal of the power supply module, and the other end is connected to one end of the capacitor C4 and one end of the resistor R8; the other end of the capacitor C4 and the other end of the resistor R8 are both grounded; wherein, the voltage sampling circuit The sampling voltage is:

[0064]

[0065] In the formula, U_led_in is the output voltage of the power supply module.

[0066]The acquisition module also includes a current sampling circuit, and the current sampling circuit includes a resistor R15. Pin 1, pi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses projection equipment for realizing full-color DLP through a dual-channel LED. The equipment comprises a fluorescent film, a light machine main body, an LED driving module and acontroller. The light machine body is provided with a projection end and comprises a UV lamp and an LED2, the UV lamp projects a light beam to the fluorescent film through the projection end, and anenabling channel of the LED2 is in a normally-closed state. The LED driving module comprises an LED 3 and an LED 4, an enabling channel of the LED 3 is connected with the UV lamp, and an enabling channel of the LED 4 is connected with the LED 2. And the controller is used for controlling the opening and closing states of the use channels of the LEDs 3 and 4 so as to excite the R, G and B three-color fluorescent powder on the fluorescent film. The other two channels of LEDs are controlled through the enabling channels of the two LEDs, the cost of the DLP projection equipment can be saved, the power of the DLP projection equipment is reduced, the light emitting color and the brightness are relatively weak, and the LED lamp can be suitable for some occasions with low power consumption and lowcolor degree requirements.

Description

technical field [0001] The invention relates to a DLP projection device in the technical field of full-color projection, in particular to a dual-channel LED-realized full-color DLP projection device. Background technique [0002] Digital Light Processing Projection (DLP Projection) technology is a projection technology that projects images by adjusting reflected light. DLP projection equipment is very different from LCD projectors. Its imaging is realized by reflecting light through thousands of tiny mirrors. DLP projection can produce color because of the color wheel (composed of red, green, and blue groups) placed on the light source path. The light emitted by the light source passes through the converging lens to the color filter to produce RGB three primary colors, and the light emitted by the light source passes through The rapidly rotating red, green, and blue filters are projected onto the surface of a microchip DMD embedded with a micromirror array. These micromirro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3155H04N9/3158H04N9/3164
Inventor 肖楠赖伟斌
Owner 英锐科技(深圳)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap