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Light-emitting device

A technology of light-emitting device and light-emitting diode, which is applied in the direction of lighting device, electroluminescent light source, light source, etc.

Inactive Publication Date: 2008-12-10
GIO OPTOELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, how to create a light-emitting device with a new structure and provide a light-emitting device that can avoid the open circuit phenomenon caused by the damage of a single light-emitting element is one of the current important issues, and it has also become a goal that the industry needs to improve.

Method used

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Examples

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Embodiment Construction

[0031] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the light-emitting device proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows.

[0032] see figure 2 Shown is a schematic circuit block diagram of the light emitting device according to the preferred embodiment of the present invention. The light emitting device 2 according to the preferred embodiment of the present invention includes a light emitting circuit unit 21 and an open circuit preventing circuit unit 22 . The light-emitting circuit unit 21 is driven by a first driving voltage; the open-circuit prevention circuit unit 22 is connected in parallel with the light-emitting circuit unit and driven by a second driving voltage, wherein t...

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Abstract

The invention relates to a light-emitting device, which includes a light-emitting circuit unit and an open-circuit preventing circuit unit. The light-emitting circuit unit is driven by a first driving voltage; the open-circuit preventing circuit unit is connected in parallel with the light-emitting circuit unit and driven by a second driving voltage, wherein the second driving voltage is greater than the first driving voltage. The present invention connects an open-circuit prevention circuit unit and light-emitting diodes in parallel, so when a plurality of light-emitting devices are connected in series, when any one of the light-emitting diodes does not emit light due to an open circuit, the light-emitting device can be prevented by the open circuit of the light-emitting diodes. The action of the loop unit prevents other light-emitting devices from not emitting light, which can avoid the open-circuit phenomenon caused by the damage of a single light-emitting diode, and is very suitable for practical use.

Description

technical field [0001] The invention relates to a light-emitting device, in particular to a light-emitting device with a light-emitting diode, which can avoid the open circuit phenomenon caused by the damage of a single light-emitting diode. Background technique [0002] Light emitting diodes have a wide range of applications. In addition to being used as general lighting, light emitting diodes have recently been used as light sources in backlight modules of display devices. As far as the backlight modules of displays are concerned, they can generally be divided into two categories: direct-type backlight modules and edge-type backlight modules. A plurality of light-emitting devices (light-emitting modules) are used in the direct-type backlight module, while one light-emitting device is mostly used in the side-light type backlight module. What needs to be specially explained here is that as the size of the display is different and the light-emitting mode of the backlight mod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20H05B33/08H05B33/14H05B44/00
Inventor 陈宏男莫清贤
Owner GIO OPTOELECTRONICS CORP
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