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Standby repair type patterned LED devices

A LED device, graphic technology, applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., to achieve the effect of structural optimization

Inactive Publication Date: 2015-03-11
SUZHOU HANMO MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a fatal weakness in high-voltage LEDs manufactured through graphic integration: once an LED chip unit integrated in the substrate is blown, it will cause the entire device to fail.

Method used

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  • Standby repair type patterned LED devices

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Embodiment Construction

[0011] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0012] In view of this, in a preferred embodiment of the invention, the vicinity of each main LED chip on the substrate of the spare repaired patterned LED device corresponds to a spare LED chip, and the main LED chip and the spare LED chip An independent logic circuit is equipped between the chips. When the main LED chip is turned on, the backup LED chip is controlled to be turned off; when the main LED chip is blown, the backup LED chip is controlled to be turned on.

[0013] See attached figure 1 As shown, as another preferred embodiment of the present invention, the spare repair type patterned LED device also includes a main LED chip u...

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Abstract

The invention discloses a standby repair type patterned LED device. A standby chip is correspondingly arranged at the vicinity of each main use chip on a substrate; an independent logic circuit is configured between each main use chip and the corresponding standby chip; when the main use chip is switched on, the corresponding standby chip is switched off under control; and when the main use chip is burn out, and the corresponding standby chip is switched on under control. By means of the above technical schemes, the structure of the standby repair type patterned LED device of the invention can be optimized maximally, and the standby repair type patterned LED device can be more suitable for high-voltage application field.

Description

technical field [0001] The invention relates to a high-voltage LED device, in particular to a spare repair type patterned LED device. Background technique [0002] With the continuous upgrading of applications and the market's demand for LEDs, LEDs are developing in the direction of high power and high brightness. In order to achieve the above purpose, the following two methods are mainly adopted at present: first, several or dozens, even hundreds of independent LEDs are connected in series or in parallel to prepare high-voltage LED devices. The high-voltage LED device with this structure has many bonding wires, high cost, and large area, but it has the advantages of easy repair of individual independent LED failures; secondly, the LED chip is directly manufactured on the substrate with graphic integration, and through the graphics High-voltage LEDs are prepared by optimizing the design internally, optimizing the combination of each figure and optimizing the connection mode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00H01L27/15
CPCH01L27/153H01L33/0004H05B47/10H01L27/15H01L33/00H01L33/20
Inventor 何源谢祥同何精明
Owner SUZHOU HANMO MATERIAL TECH