Microminiature photoelectric LCD device dynamic image transmission apparatus

A liquid crystal display and dynamic image technology, which is used in measurement devices, static indicators, optical instrument testing, etc., can solve the problems of no retrieval of dynamic image transmission related devices based on micro and small liquid crystals, and little research on micro and small liquid crystal displays. , to achieve the effect of ensuring real-time performance, compact system, and reducing size and volume

Inactive Publication Date: 2009-11-25
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

At present, there are not many related studies on micro-miniature liquid crystal displays in dynamic scene simulation, and no related devices for dynamic image transmission based on micro-miniature liquid crystals have been retrieved.

Method used

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  • Microminiature photoelectric LCD device dynamic image transmission apparatus
  • Microminiature photoelectric LCD device dynamic image transmission apparatus
  • Microminiature photoelectric LCD device dynamic image transmission apparatus

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Embodiment Construction

[0026] Below, the target lower computer composed of XILINX Vertex-4FPGA, CY7C68013USB interface chip, CY7C1354B SRAM and ADV7125 digital-to-analog conversion chip will be further described in conjunction with the accompanying drawings.

[0027] (a) The high-speed data interface of the lower target machine (2) selects the USB bus interface, and the interface chip selects CY7C68013 that can support high-speed transmission mode, and uses two SRAMs for image data buffer storage. The storage space of the SRAM should not be less than 768KB, and the digital-to-analog conversion chooses the 8-bit three-way high-speed DAC conversion chip ADV7125, and the whole system block diagram is as follows figure 2 shown;

[0028] (b) Choose a 0.9-inch, 1024×768 pixel, high-resolution miniature photoelectric liquid crystal display (4) that conforms to the XGA video format. The driving circuit design is based on the display requirements of the LCX029 liquid crystal chip, combined with the typical ...

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Abstract

The invention belongs to the technical field of photoelectric image transmission, can be used for a plurality of aspects of dynamic scene simulation, optimum design and performance evaluation of the optical measurement system. The invention provides a design proposal and a hardware platform for implementing dynamic image transmission. A high speed data interface, a logical programmable device, a digital-analog conversion chip and a static memory are used for building a hardware platform, by rationally designing the firmware program, the device driver program and an upper computer application program, the high speed image data can be transmitted by the interface from the upper computer, a lower computer can generate row and field synchronizing signals on the microminiature liquid crystal pattern generator to display dynamic image by the XGA video form after buffer processing the image data. The invention introduces the microminiature liquid crystal pattern generator into the photoelectric image transmission technology for the first time, and takes the dynamic image on the microminiature liquid crystal pattern generator as the dynamic scene simulated background, decreases the dimension volume of the optical system, enables the system to be much more compact, and introduces the digitalization, automatization and microminiaturization into the optical parameter measuring instrument.

Description

technical field [0001] The invention belongs to the technical field of photoelectric image transmission, and can be used in multiple aspects such as dynamic scene simulation, optimal design and performance evaluation of an optical measurement system. technical background [0002] With the rapid development of electronic technology, optical parameter measuring instruments have gradually realized digitization and automation. Compared with foreign electronic measurement technology, the traditional domestic optical parameter measurement method requires the measurement personnel to perform a series of tasks such as observation, recording, data analysis and calculation results on the optical parameter measurement system one by one, which has the disadvantages of low efficiency, unstable accuracy, Shortcomings such as high technical requirements for surveyors. The photoelectrochemical, digital, and intelligent research of traditional optical parameter measurement methods is impera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/00G01M11/02G09G3/36
Inventor 林家明刘金华孙若端张旭升何川
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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