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Intelligent digital micro-mirror driving time sequence configuration method and device

A technology of digital micromirror and driving timing, which is applied in the direction of using projection device, image reproducer, instrument, optics, etc., can solve complex and flexible problems, achieve the effect of convenient modification, flexible modification, and improvement of development efficiency

Inactive Publication Date: 2012-10-17
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, every time the bit plane sequence is changed, the drive timing must be redesigned, which is a complex and inflexible task

Method used

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  • Intelligent digital micro-mirror driving time sequence configuration method and device
  • Intelligent digital micro-mirror driving time sequence configuration method and device
  • Intelligent digital micro-mirror driving time sequence configuration method and device

Examples

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Embodiment Construction

[0021] refer to figure 1 , run the application program used to configure the parameters on the PC, the ARM of the micromirror driver board is connected to the application program on the PC to receive the parameters; in the digital micromirror driver board, the ARM drives the color wheel to rotate at a constant speed (such as 60 revolutions per second ), and pass the parameters received from the PC application program to the driving circuit in the FPGA, the driving circuit receives the timing parameters, and converts the video signal into a bit plane and stores it in the dynamic memory for calling. In order to make the digital micromirror device The driving of the DMD is synchronized with the color wheel, and the driving circuit also needs to receive the feedback signal of the color wheel.

[0022] The UHP lamp is used as the light source of the digital micromirror device DMD in this device, and the color wheel is used as the color filter of the light source. The white light em...

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Abstract

The invention discloses an intelligent digital micro-mirror driving time sequence configuration method and device. The device comprises a PC (Personal Computer) machine, a digital micro-mirror driving plate and a digital micro-mirror device DMD (Digital Micro-Mirror Device), wherein the digital micro-mirror driving plate is connected with the PC machine and the digital micro-mirror device DMD respectively; the digital micro-mirror driving plate comprises an ARM microcontroller, an FPGA (Field Programmable Gate Array) and a color wheel; the ARM microcontroller is connected with the FPGA and the color wheel, respectively; the FPGA is connected with the color wheel and the digital micro-mirror device DMD, wherein the FPGA is internally provided with a driving circuit; the driving circuit comprises an SPI (Serial Peripheral Interface) interface module, a driving sequence table storage and a general state machine; the SPI interface module is connected with the driving time sequence table storage; and the general state machine is connected with the driving time sequence table storage, and is capable of reading the content in the driving sequence table storage and then generating a corresponding driving time sequence. With the adoption of the intelligent digital micro-mirror driving time sequence configuration method and device, the problem that the digital micro-mirror device has high difficulty in the driving of time sequence can be solved; the DMD driving time sequence can be flexibly configured; the DMD driving time sequence is convenient and flexible to be modified; and the development efficiency of the DMD driving is greatly improved.

Description

technical field [0001] The invention relates to the development field of a micromirror device DMD drive for displaying images, and relates to an intelligent micromirror drive timing configuration method and device. Background technique [0002] Among the most important projection technologies at present, the DLP (Digital Light Processing) projection system has the advantages of small size, compact structure and light weight. At the same time, the displayed images are rich in color, high in brightness, high in contrast and good in definition, which makes the projection system based on DLP technology more competitive. [0003] The digital micromirror device DMD, which is the core component of DLP, was invented by Dr. Larry Hornbeck of TI in 1977, and the first digital micromirror device was born in 1987. In the next 10 years, the performance of digital micromirrors has been continuously improved, until 1996, DMD began to be commercialized in the form of DLP technology. I...

Claims

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Application Information

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IPC IPC(8): H04N9/31G02B26/08
Inventor 刘一清林新新岳小龙
Owner EAST CHINA NORMAL UNIV
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