Controller for controlling light source module

A light source module and controller technology, applied in the field of controllers, can solve problems such as increasing costs

Active Publication Date: 2021-01-22
AOTU ELECTRONICS WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to control a larger number of LED strings, a larger number of controllers is also required, which also increases the cost of the system

Method used

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  • Controller for controlling light source module
  • Controller for controlling light source module
  • Controller for controlling light source module

Examples

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Embodiment Construction

[0010] A detailed description will be given below of embodiments of the present invention. Although the present invention has been illustrated and illustrated by these embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, the invention covers all alternatives, modifications and equivalents which are within the spirit and scope of the invention as defined by the appended claims.

[0011] In addition, in order to better illustrate the present invention, numerous specific details are given in the specific embodiments below. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail. Described in order to highlight the gist of the present invention.

[0012] figure 1 Shown is a light source driving circuit 100 including a controller 180 for cont...

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Abstract

The invention provides a controller for controlling a light source module including a first LED array and a second LED array. The controller includes a power input terminal, a first power output terminal and a second power output terminal. The power input terminal is operable for receiving electric power from a power converter. The first power terminal is coupled to the first LED array, and the second power output terminal is coupled to the second LED array. The controller is operable for delivering the electric power to the first LED array via the first power output terminal in a first sequence of discrete time slots, and for delivering the electric power to the second LED array via the second power output terminal in a second sequence of discrete time slots. The first sequence of discrete time slots and the second sequence of discrete time slots are mutually exclusive. According to the controller provided by the invention, a plurality of LED arrays can share the same group of currentsensing ports in the controller, namely the plurality of LED arrays are controlled by the single controller, and therefore the cost is reduced.

Description

technical field [0001] The present invention relates to the technical field of controllers, in particular to a controller for controlling a light source module. Background technique [0002] In a light-emitting diode (Light-Emitting Diode, LED) display system, such as a liquid crystal display (Liquid Crystal Display, LCD) television, a controller is usually used to control the power of multiple LED strings used for backlighting. Since the controller only has a specified number of control pins, the controller can only control a limited number of LED strings. In order to control a larger number of LED strings, a larger number of controllers is also required, which also increases the cost of the system. Contents of the invention [0003] The invention provides a controller for controlling a light source module. The light source module includes a first LED array and a second LED array. The first LED array includes a first group of LED strings, and the second LED array inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/34H05B44/00
CPCG09G3/32G09G3/3406H05B45/395H05B45/46H05B45/14H05B39/047H05B45/10H05B45/37
Inventor 胡荣林永霖山崎浩藤田直幸
Owner AOTU ELECTRONICS WUHAN
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