CN203414723U

CN203414723U - Novel digital projection display device

Info

Publication number: CN203414723U
Application number: CN201320489214.0U
Authority: CN
Inventors: 王伟杰
Original assignee: NANJING ODIN TECHNOLOGY Co Ltd
Current assignee: Jiangsu Oudi Electronic Technology Co ltd
Priority date: 2013-08-12
Filing date: 2013-08-12
Publication date: 2014-01-29
Anticipated expiration: 2023-08-12

Abstract

The utility model discloses a novel digital projection display device. The display device includes a laser light source, a condensing lens, a fluorescent powder color wheel, a shaping lens, a DMD (Digital Micromirror Device) control board, a lens and a projection screen. A DMD chip, a processor and a memory are arranged on the DMD control board; the laser light source sequentially passes through the condensing lens, the fluorescent powder color wheel and the shaping lens and is connected to the DMD chip; and the DMD chip is connected on the projection screen through the lens. The novel digital projection display device is simple in structure; the high-resolution DMD chip and the pure solid LASER light source emitter which has the characteristics such as being high in brightness, high in fidelity, long in service life, low in carbon, and environmentally friendly are used to project the blue pure solid laser source onto the DMD chip; after the DMD chip receives a control signal from the control board, the DMD chip reflects the light onto the projection screen, so that the photorealistic image with the high brightness, high contrast ratio, and high fidelity is formed; and the good practical effect is realized.

Description

A kind of new digital projection display equipment

Technical field

The utility model relates to video technique field, relates in particular to a kind of dmd chip of selecting high-res and adopts the new digital projection display equipment of the high new type light source transmitter of a kind of super brightness, energy-conserving and environment-protective, color rendition degree.

Background technology

DLP is the abbreviation of " Digital Light Procession ", is digital light and processes, and that is to say that this technology is first the digital processing of signal of video signal process, and then light is projected.It is based on DMD(Digital Micromirror Device) complete the technology that viewable numbers information shows.Specific, be exactly that DLP shadow casting technique has applied digital micro-mirror wafer (DMD) and is used as main crucial treatment element to realize digit optical processing procedure.

Light source by refraction after colour wheel on dmd chip, dmd chip after receiving the control signal of control panel by light emission to projection screen.Dmd chip outward appearance seems a just small pieces mirror, is encapsulated in the confined space of metal and glass composition, and in fact, this face mirror is comprised of hundreds thousand of and even up to a million micro mirrors.The dmd chip of XGA resolution of take is example, at wide 1cm, has 1024 * 768=786432 micro mirror unit in the area of long 1.4cm, and each micro mirror represents a pixel, and image is just consisted of these pixels.Due to pixel and chip itself all quite small, so industry also to claim these to adopt the product of microform display devices be micro-display.Along with the innovation in market, the progress of display technique, the display resolution of the upgrading XGA of signal source cannot meet more and more meticulousr image.

Light source UHP, LED that traditional DLP adopts are as light source.UHP(Ultra High Performance) light source is DLP system unique available light source almost before 2010.UHP belongs to ultra high pressure mercury bulb and sends white light by transmission colour wheel, produces color, and the size of its colour gamut depends on the COLOR COMPOSITION THROUGH DISTRIBUTION of colour wheel.Consideration for brightness generally all can increase white portion on colour wheel, improves white brightness, but can reduce the distribution of colour gamut simultaneously.This kind of light source often there will be the problems such as quick-fried lamp, brightness be low, unreliable.Its ED of L is light emitting diode, is a kind of semiconductor solid luminescence device, generally usings refrigerant as heat radiation major way.Owing to there being the LED lamp of red, green, blue different colours, so LED light source system does not need colour wheel.But because brightness is inadequate, need at present many homochromyly as three groups of lamps, to carry out work.LED light source brightness in early stage cannot improve, and medium green colored lights is brightness bottleneck.But due to many distributions of polychrome, the decay of many LED light sources is uncontrollable, because itself characteristic there will be color offset in various degree.

Utility model content

For the problem of above-mentioned existence, it is a kind of by adopting the new digital projection display equipment of the pure solid-state LASER light source emitter of the features such as the dmd chip of high-res and high brightness, high-fidelity, long-life, low-carbon environment-friendly that the utility model provides.

In order to achieve the above object, the technical solution adopted in the utility model is as follows: a kind of new digital projection display equipment, described display device comprises LASER Light Source, collector lens, fluorescent powder color wheel, shaping lens, DMD control panel, camera lens and projection screen, described DMD control panel is provided with dmd chip, processor and internal memory, described LASER Light Source is connected on dmd chip through collector lens, fluorescent powder color wheel and shaping lens successively, and described dmd chip is connected on projection screen by camera lens.

As a kind of improvement of the present utility model, described LASER Light Source is the pure solid-state blue laser light source transmitter that brightness 2000-2500lm, power are 130W.

As a kind of improvement of the present utility model, described fluorescent powder color wheel is the wavelength converter that contains redness, green emitting phosphor and the saturating slide of blue light; Produce red bluish-green three primary colours output light, thereby colour wheel rotates generation red, green, blue; Laser light focuses on one of fluorescent powder color wheel very little point by collector lens, can realize 200% NTSC gamut range.

As a kind of improvement of the present utility model, described dmd chip is the dmd chip that contains 1400x1050=1470000 micro mirror unit in unit area, and described dmd chip can provide the high-res of high definition resolution.

The utility model has the advantage of: the utility model is simple in structure, by adopting dmd chip and the high brightness of high-res, high-fidelity, long-life, the pure solid-state LASER light source emitter of the features such as low-carbon environment-friendly, by the pure solid-state laser source of blueness project dmd chip after receiving the control signal of control panel by light emission to projection screen, present high brightness, high-contrast, the photorealism of high-fidelity, good practical effect, can realize 200% NTSC gamut range, maximum is equivalent to human eye can the more than 70% of identification colors, surpass the color displays scope of any display technique in the past.

Accompanying drawing explanation

Fig. 1 is the utility model structure diagram;

Wherein, 1 LASER Light Source, 2 collector lenses, 3 fluorescent powder color wheels, 4 shaping lens, 5 dmd chips, 6 DMD control panels, 7 processors, 8 internal memories, 9 camera lenses, 10 projection screens.

Embodiment

Below in conjunction with accompanying drawing explanation and embodiment, the utility model is described in further detail.

embodiment 1:a kind of new digital projection display equipment as shown in Figure 1, described display device comprises LASER Light Source 1, collector lens 2, fluorescent powder color wheel 3, shaping lens 4, DMD control panel 6, camera lens 9 and projection screen 10, described DMD control panel 6 is provided with dmd chip 5, processor 7 and internal memory 8, described LASER Light Source 1 is connected on dmd chip 5 through collector lens 2, fluorescent powder color wheel 3 and shaping lens 4 successively, and described dmd chip 5 is connected on projection screen 10 by camera lens 9.

embodiment 2:the pure solid-state blue laser light source transmitter that LASER Light Source 1 described in the utility model is 130W for brightness 2000-2500lm, power.The wavelength converter of described fluorescent powder color wheel 3 for containing redness, green emitting phosphor and the saturating slide of blue light; Produce red bluish-green three primary colours output light, thereby colour wheel rotates generation red, green, blue; Laser light focuses on one of fluorescent powder color wheel very little point by collector lens, can realize 200% NTSC gamut range.The dmd chip of described dmd chip 5 for containing 1400x1050=1470000 micro mirror unit in unit area, described dmd chip can provide the high-res of high definition resolution.

embodiment 3:principle of work of the present utility model as shown in Figure 1:

The utility model be take blue laser light source 1 as energy source, light source gathers laser on the fluorescent powder color wheel 3 that contains redness, green emitting phosphor and the saturating slide of blue light by collector lens 2, laser light focuses on a very little point of colour wheel, produce red bluish-green three primary colours output light, thereby fluorescent powder color wheel 3 produces red, green, blue by rotating; Light is through shaping lens 4 refractions on dmd chip 5, and dmd chip 5 is transmitted into light after treatment on projection screen 10 by camera lens 9 after receiving the control signal of control panel; Present the photorealism of high brightness, high-contrast, high-fidelity.

It should be noted that, above-mentioned is only preferred embodiment of the present utility model, is not used for limiting protection domain of the present utility model, and the equivalents of having done on the basis of above-described embodiment all belongs to protection domain of the present utility model.

Claims

1. a new digital projection display equipment, it is characterized in that, described display device comprises LASER Light Source, collector lens, fluorescent powder color wheel, shaping lens, DMD control panel, camera lens and projection screen, described DMD control panel is provided with dmd chip, processor and internal memory, described LASER Light Source is connected on dmd chip through collector lens, fluorescent powder color wheel and shaping lens successively, and described dmd chip is connected on projection screen by camera lens.

2. a kind of new digital projection display equipment according to claim 1, is characterized in that, described LASER Light Source is the pure solid-state blue laser light source transmitter that brightness 2000-2500lm, power are 130W.

3. a kind of new digital projection display equipment according to claim 1, is characterized in that, described fluorescent powder color wheel is the wavelength converter that contains redness, green emitting phosphor and the saturating slide of blue light.

4. a kind of new digital projection display equipment according to claim 1, is characterized in that, described dmd chip is the dmd chip that contains 1400x1050=1470000 micro mirror unit in unit area.