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Display

A technology for displays and DC converters, which can be used in static indicators, instruments, lighting devices, etc., to solve problems such as narrow desktop space

Inactive Publication Date: 2013-12-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will make the desktop space more narrow

Method used

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

[0011] Please refer to figure 1 , the circuit diagram of the preferred embodiment of the display 1 of the present invention includes a plug 10, an AC / DC converter 12, a pulse width modulation signal generator 15, a driver chip 16, several light emitting diodes (in this embodiment, six Light emitting diodes D1-D6 as an example), two resistors R1, R2, two switches SW1, SW2, a diode D11, an inductor L1 and a capacitor C1. Wherein, the light emitting diodes D1-D6 form a light emitting diode module.

[0012] The plug 10 is connected to an AC / DC converter 12 through a switch SW2 , and the AC / DC converter 12 is also connected to a pulse width modulation signal generator 15 and a driving chip 16 . The pulse width modulation signal generator 15 is connected to the driving chip 16 to provide the driving chip 16 with a pulse width modulation signal. Th...

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Abstract

The invention discloses a display. The display comprises an AC / DC converter, a pulse-width signal generator, a driving chip, a light emitting diode module, a first resistor, a second resistor and a first switch, wherein the AC / DC converter is used for converting the AC commercial power into DC and supplying power to the pulse-width signal generator and the driving chip; the pulse-width signal generator is also connected with the driving chip for providing the driving chip pulse-width signals; the driving chip is connected with the anode of the light emitting diode module for supplying working voltage for the light emitting diode module according to the received pulse-width signals; the cathode of the light emitting diode module is connected with the moving end of the first switch; the first fixed end and the second fixed end of the first switch are respectively grounded through the first resistor and the second resistor; and the resistance of the first resistor is smaller than that of the second resistor. The display can be used for both displaying and illuminating.

Description

technical field [0001] The invention relates to a display. Background technique [0002] At present, monitors have been widely used as one of the standard configurations of computer products. In addition to placing a monitor, a desk lamp or the like is usually placed on a general user's desk. This will make the desktop space more narrow. Contents of the invention [0003] In view of the above, it is necessary to provide a display with lighting function. [0004] A display comprising an AC / DC converter, a pulse width modulation signal generator, a driver chip, a light emitting diode module, a first resistor, a second resistor and a first switch, the AC / DC The converter is used to convert AC mains power into DC power and supply power to the pulse width modulation signal generator and the driver chip. The pulse width modulation signal generator is also connected to the driver chip to provide pulse width modulation signals for the driver chip. The driver chip is also conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCY02B20/346H05B33/0815H05B37/02Y02B20/30H05B47/10H05B45/38
Inventor 周海清
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD