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Time division multiplex access based liquid crystal drive device

A technology of time-division multiplexing and liquid crystal drive, applied to instruments, static indicators, etc., can solve the problems of complex control structure, high cost, and high power consumption, and achieve the effect of simple control structure, low cost, and low power consumption

Inactive Publication Date: 2014-10-22
HENAN UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The above methods all use two sets of video memory units and complex control logic to realize the real-time display of the system, but this method uses many devices, consumes a lot of power, is costly and has a complicated control structure

Method used

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  • Time division multiplex access based liquid crystal drive device
  • Time division multiplex access based liquid crystal drive device
  • Time division multiplex access based liquid crystal drive device

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Embodiment Construction

[0022] A liquid crystal drive device based on time-division multiplexing of the present invention will be further described below in conjunction with specific embodiments.

[0023] like figure 1 Shown is a schematic structural view of the present invention. Depend on figure 1 It can be seen that the present invention includes:

[0024] CPU 1, connected to the control unit, is responsible for sending image data to the control unit.

[0025] The control unit 2 constructs a display memory control module 3 and a liquid crystal drive module 4 inside the FPGA. Wherein, the display memory control module 3 is connected with the CPU 1, the display memory unit (SRAM) 5, and the liquid crystal drive module 4, and this module receives the image data sent by the CPU 1 and stores it in the display memory unit 5, and simultaneously outputs the X image data output by the liquid crystal drive module 4 , and the Y address is converted into an address for reading the display memory unit 5, a...

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Abstract

A time division multiplex access based liquid crystal drive device comprises a central processing unit, a control unit, a video memory unit and a liquid crystal display. According to the time division multiplex access based liquid crystal drive device, on the premise that display timeliness is guaranteed, functions of a liquid crystal display system are achieved through the video memory unit and simple control logic, and a device structure is simplified so as to overcome defects of existing devices; under the condition that normal display of the liquid crystal display is guaranteed, the liquid crystal display system comprising the single video memory unit and having low consumption, low costs and a simple control structure is achieved.

Description

technical field [0001] The invention relates to a data transmission control technology of an embedded liquid crystal display system, in particular to a device for realizing time-division multiplexing operation of a memory in the liquid crystal display system. Background technique [0002] With the continuous development of embedded technology and liquid crystal display technology, at present, most embedded systems use liquid crystal as a display device, which greatly improves the ability of human-computer interaction. The key issue of embedded liquid crystal display technology lies in the driving of liquid crystal and the synchronization of data update and display. Among them, the synchronization of data update and display is a technical difficulty of the embedded liquid crystal display system, which determines the real-time performance, accuracy and system display speed of the embedded liquid crystal display system. Therefore, the research on data update and display synchr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 徐巧玉王军委黄艳王红梅赵伟超王已伟王卫敏李坤鹏
Owner HENAN UNIV OF SCI & TECH
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