Digital controlled light source drive device

Abstract

The invention relates to a digital controlled light source drive device, which comprises a digital processor and a boosting loop. The digital processor comprises a digital switch signal generating module and a protection module; the digital switch signal generating module is used to generate at least a group of digital switching signals; the protection module is used to generate a group of protection switch signal. The boosting loop is connected to the protection module, and according to the protection switch signals, generates a power signal. After the digital processor generating the digital switching signals, the digital controlled light source drive device is turned into the protection switch signal through the protecting loop and input the boosting loop to ensure the boosting loop function well when generating the wrong digital switching signal.

Description

technical field [0001] The invention relates to a light source driving device, in particular to a digitally controlled light source driving device. Background technique [0002] In recent years, the application of flat panel displays has become more and more popular, among which liquid crystal displays are the mainstream in the market. With the technical development of the liquid crystal display, the industry has recently increased its size continuously to meet the needs of actual use. For example, if a liquid crystal display is used as a TV screen, when the liquid crystal display is used as a TV screen, the user's requirements for size will increase accordingly. In other words, if the liquid crystal display is used as a TV screen, the liquid crystal display will inevitably increase accordingly. to 30 inches or more. However, when the size of the liquid crystal display increases, the number of lamp tubes used as the backlight must increase to provide sufficient brightness....

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Problems solved by technology

[0003] However, when the number of lamp tubes increases, the ensuing problem is that the brightness of each lamp tube is likely to be uneven, and the number of light source driving devices used to drive the lamp tubes will increase accordingly.

[0011] It can be seen that the above-mentioned existing light source driving device obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the problems existing in the light source driving device, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above problems, which is obvious. It is a problem that relevant industry players are eager to solve

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