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Digital controller, display module control system and display module control method

A technology of display module and control system, which can be used in instruments, static indicators, lighting devices, etc., and can solve problems such as labor hours and rising costs.

Inactive Publication Date: 2009-10-14
DARFON ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since this method uses an external circuit for compensation, it needs to be equipped with a large number of passive components, such as resistors, capacitors, etc., to adjust complex compensation parameters
When the optical properties of the display module 16 do not meet the specifications, it is necessary to manually fine-tune the passive components (resistors or capacitors), which increases the man-hours and costs of manufacturing.

Method used

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  • Digital controller, display module control system and display module control method
  • Digital controller, display module control system and display module control method
  • Digital controller, display module control system and display module control method

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Embodiment Construction

[0047] Please refer to figure 2 . figure 2 A functional block diagram of a digital controller 2 according to a specific embodiment of the present invention is shown. The digital controller 2 can be applied to LCD and LCD TV etc. to control the luminance of the display module. In practice, a power supply is electrically connected to the digital controller 2 and supplies power to the display module. In practical applications, the display module may contain light-emitting diodes or cold-cathode fluorescent tubes.

[0048] Such as figure 2 As shown, the digital controller 2 includes a digital processing unit 20 . The digital processing unit 20 has a lookup table 200 . The comparison table 200 stores a plurality of preset voltage values ​​and a plurality of duty cycle parameters, wherein each preset voltage value in the plurality of preset voltage values ​​corresponds to a duty cycle parameter in the plurality of duty cycle parameters. In response to the input signal 24 fr...

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Abstract

The invention relates to a digital controller, a display module control system and a display module control method. The digital controller comprises a digital processing unit which comprises a comparison table. The comparison table stores a plurality of pre-set voltage values and a plurality of working frequency parameters, wherein each of the pre-set voltage values corresponds to one of the working frequency parameters. The digital controller searches the comparison table in response to an input signal which is input into the digital controller from a power source to find out the pre-set voltage value matched with the voltage value of the input signal, and generate a control signal with the working frequency parameter corresponding to the pre-set voltage value to control the display module, thus the power supplied to the display module has constant power basically.

Description

technical field [0001] The invention relates to a digital controller, a display module control system using the digital controller and a display module control method. Background technique [0002] With the rapid development of technology and the vigorous development of various electronic products, multimedia systems for business and home use are becoming more and more popular. Among numerous electronic products, display devices (such as LCD and LCD TV) for displaying images are increasingly popular in the consumer market and are also indispensable equipment in digital homes. Therefore, how to improve the quality of the display device, such as ensuring that the light source provided to the display device has a very stable and uniform brightness, has always been a topic that designers have attached great importance to. [0003] Please refer to Figure 1A , Figure 1A A functional block diagram of a typical display system 1 is shown. The display system 1 includes an analog i...

Claims

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Application Information

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IPC IPC(8): G09G3/34G09G3/36H02M1/00H05B37/02
Inventor 曾创炜任品瑞
Owner DARFON ELECTRONICS CORP
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