A liquid crystal display system and method based on time-division multiplexing technology

A time-division multiplexing and display system technology, applied to static indicators, instruments, etc., can solve the problems of increasing the number of RAMs, increasing costs, and high algorithm complexity, achieving precise timing control, low cost, and complex access low degree of effect

Active Publication Date: 2016-04-13
SOUTH CHINA UNIV OF TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method can enable external devices to write data or read data at any time, but the disadvantage is that different slices of random access memory need to be alternately operated, and the algorithm complexity is high. At the same time, the number of random access memories increases, which will lead to an increase in cost

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  • A liquid crystal display system and method based on time-division multiplexing technology
  • A liquid crystal display system and method based on time-division multiplexing technology
  • A liquid crystal display system and method based on time-division multiplexing technology

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0037] A liquid crystal display system based on time-division multiplexing technology, such as figure 1 , including a liquid crystal screen, a liquid crystal display controller and a display data memory, wherein the liquid crystal display controller is respectively connected with the liquid crystal screen and the display data memory, and provides a port connected with an external device, and the display data memory is static random access memory or dynamic random access memory;

[0038] In the display data memory, when an external device connected to the LCD display controller issues a write data or read data instruction, the address of the storage unit to write data or read data is given, and the LCD display controller judges Whether the data memory is in a free area o...

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Abstract

The invention discloses a liquid crystal screen display system based on a time division multiplex access technique. The system comprises a liquid crystal screen, a liquid crystal screen display controller and a display data storage, wherein data exchange between the display system and external equipment is finished in an idle area of the display data storage, and data in the display data storage are updated onto the liquid crystal screen on a busy area of the display data storage. According to the system and method, on the premise that cost is not increased, display data of the liquid crystal screen can be updated, and the external equipment is allowed to read and write the data at any moment.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal display system and method based on time-division multiplexing technology. Background technique [0002] At present, with the widespread use of liquid crystal display systems in consumer products and industrial products, the ease and flexibility of using liquid crystal display systems has become an important factor to measure the performance of liquid crystal display systems. There are more and more occasions where the LCD display system is required to allow external devices to read and write data at any time when updating the LCD display data. However, because the display data memory is not a dual-port memory, it is a difficult point in the LCD display system to allow external devices to read and write data when updating the LCD display data. [0003] Currently, there are two solutions. One is to provide a busy signal to the external device. When the busy s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 薛家祥沈栋陈振升王磊磊恒功淳李志宽肖健
Owner SOUTH CHINA UNIV OF TECH
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