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Digital controller, display module control system and control method thereof

A technology of display module and control system

Inactive Publication Date: 2012-10-31
DARFON ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pulse mode needs to use an external circuit for compensation, so a large number of passive components, such as resistors and capacitors, are required to adjust complex compensation parameters, which increases the man-hours and costs of manufacturing

Method used

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

Examples

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Embodiment Construction

[0040] see figure 2 . figure 2 A functional block diagram of the digital controller 2 according to a specific embodiment of the present invention is shown. The digital controller 2 can be applied to multimedia equipment such as LCD and LCD TV to control the luminous brightness of the display module thereof. The display module may contain light emitting diodes or cold cathode fluorescent lamps. According to the customized specification, the first control signal 22 having the first preset duty cycle parameter is input to the digital controller 2 .

[0041] like figure 2 As shown, the digital controller 2 includes a digital processing unit 20 . The digital processing unit 20 has a look-up table 200 . The comparison table 200 stores a plurality of second preset duty cycle rate parameters and a plurality of target duty cycle rate parameters, wherein each of the plurality of second preset duty cycle rate parameters corresponds to a plurality of targets A target duty cycle p...

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Abstract

The invention discloses a digital controller, a display module control system and a control method thereof. The digital controller comprises a digital processing unit with a comparison table. First control signals with first preset working frequency parameters are input to the digital controller. The comparison table stores a plurality of second preset working frequency parameters and a pluralityof target working frequency parameters, and each of the second preset working frequency parameters corresponds to each of the target working frequency parameters. The digital controller searches the comparison table to find the second preset working frequency parameter matching with the first preset working frequency parameter and produces second control signals having the target working frequencyparameters which correspond to the second preset working frequency parameters to control a display module and cause the display module to have preset brightness.

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 advancement of technology and the vigorous development of various electronic products, multimedia systems for both commercial and household use are becoming increasingly popular. Among many electronic products, display devices (such as LCD and LCD TV) for presenting images are more and more widely used in the consumer market and are also indispensable equipment in digital homes. [0003] see figure 1 . figure 1 A functional block diagram of a typical display system 1 is shown. The display system 1 includes an analog inverter 10 , a driver 12 , a transformer 14 and a display module 16 . The analog inverter 10 includes an analog control unit 100, and the analog control unit 100 may be an analog IC. The power supply 18 is connected to the inverter 10 and the driv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09G3/36H02M1/00H05B37/02
Inventor 任品瑞曾创炜
Owner DARFON ELECTRONICS CORP