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Projecting unit inside portable electronic equipment

A technology for projection devices and projection planes, applied in projection devices, optics, instruments, etc., can solve problems such as wasting energy and wasting light

Inactive Publication Date: 2009-05-20
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The projection method disclosed in the known technology (digital light processor) is to utilize a surface light source to irradiate on the two-dimensional micromirror array, so that each micromirror controls whether to reflect the light it receives to form on the screen. image, however, for the pixels represented by the dark parts of the image, the light shining on the micromirrors representing the pixels is obviously wasted
Such an energy-wasting design is really not suitable for tiny projection devices installed in portable electronic devices, so a projection device structure that can save energy and volume is needed

Method used

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  • Projecting unit inside portable electronic equipment
  • Projecting unit inside portable electronic equipment
  • Projecting unit inside portable electronic equipment

Examples

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Embodiment Construction

[0016] Examples of the present invention are figure 1 As shown, it includes a light source 100 , a first DMD 110 and a second DMD 120 . The light source 100 emits light beams. The first DMD 110 receives the beam emitted from the light source 100 and reflects the beam to the second DMD 120 . The first micromirror 111 on the first digital micromirror device 110 can adjust the position of the light beam on the horizontal axis (x-axis) of the second digital micromirror device 120 by means of horizontal deflection. The second digital micromirror device 120 receives the light beam reflected from the first digital micromirror device 110, and projects the light beam onto the projection plane 130, and the second micromirrors 121-125 on the second digital micromirror device 120 can The position of the light beam on the vertical axis (y-axis) of the projection plane 130 is adjusted by means of deflection in the vertical direction, thereby, the x-y direction projected on the projection ...

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Abstract

The projecting unit includes light source, first digital micro mirror module and second digital micro mirror module. Light source emits light. First digital micro mirror module receives light from light source, and reflects the light to the second digital micro mirror module. Through horizontal direction, the first digital micro mirror module can adjust position of light on horizontal axis of second digital micro mirror module. Second digital micro mirror module receives light reflected from first digital micro mirror module, and projects the light to projection plane. The vertical deflection, second digital micro mirror module can adjust position of light on vertical axis of projection plane.

Description

technical field [0001] The invention relates to a projection device, in particular to a projection device that can be installed in small electronic consumer goods. Background technique [0002] Micro-electro-mechanical technology has been developed for a long time, and it is gradually applied to general daily necessities or electronic products. The digital micromirror device DMD (Digital Micromirror Device) developed by Texas Instruments is a reflective component used in projection equipment. A projector designed by digital micromirror device technology is called a digital light processor (DLP, Digital Light Processing), which uses a digital micromirror device as an imaging device and uses reflected light to project an image onto a screen. Its key component - digital micromirror device is a semiconductor device developed by Texas Instruments. Each digital micromirror device chip contains thousands of tiny square mirrors, also known as micromirrors. These micromirrors are c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/00G02B27/18G02B26/08G03B21/14
Inventor 施维忠林颖芳
Owner BENQ CORP
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