LED disconnecting and connecting circuit

A circuit and series circuit technology, applied in the field of semiconductor lighting, can solve the problems of uneven display brightness and unsatisfactory display effect.

Inactive Publication Date: 2011-03-16
台龙电子(昆山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a LED circuit connection form to overcome the problems of uneven display brightness and unsatisfactory display effect in the entire display area in the prior art

Method used

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0011] Such as figure 1 As shown, take 16 LED light-emitting diodes arranged in a row as an example to illustrate the connection form of the LED jumper circuit of the present invention. In this embodiment, the parallel circuit is composed of 4 parallel branches, and each parallel branch is 4 LED light-emitting diodes are connected in series, LED1 is connected in series with LED5, LED9 and LED13 every other 3 LEDs, LED2 is connected in series with LED6, LED10 and LED14 every other 3 LEDs, and LED3 is connected in series with every 3 LEDs. It is connected in series with LED7, LED11 and LED15, and LED4 is connected in series with LED8, LED12 and LED16 in sequence every three LED light-emitting di...

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Abstract

The invention belongs to the field of a semiconductor lighting technique, disclosing an LED disconnecting and connecting circuit which is characterized by comprising multiple LEDs distributed in a row; the multiple LEDs distributed in a row is a parallel circuit comprising multiple series circuits after parallel connection; the LEDs are distributed in an equivalent interval mode among the LEDs connected to the series circuits; lamps controlled by one series circuit are scattered in each region of the integral lamp strip; and the difference of the display brightness is weakened and has no influence on the display quality and effect of the integral region even if the current passing each series circuit has difference.

Description

technical field [0001] The invention relates to an LED circuit and belongs to the technical field of semiconductor lighting. Background technique [0002] Light Emitting Diode (LED for short) has been widely used in many products such as notebook computers, TV screens, neon lights, etc. In many cases, LED light strips are required to be responsible for the brightness display of an area. serial lines, such as figure 2 As shown, many LED diodes are connected in series, and then several series lines are connected in parallel to cover the entire display area. In parallel lines, due to various reasons, the currents passing through each parallel line are often different. When the currents of these parallel branches are different, the brightness of the LED diode in the branch with large current is stronger. , The branch LED diode with low current has weak brightness, which will cause uneven brightness displayed in this area, and affect the display quality and effect of the entir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V23/00H05B37/00F21Y101/02
Inventor 潘福春
Owner 台龙电子(昆山)有限公司
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