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LED lamp bead, LED display system and LED display screen

A technology of LED lamp bead and LED drive, which is applied in the direction of static indicators, instruments, electrical components, etc. It can solve the problems of complex circuit and inconvenient replacement of LED display system, and achieve the effect of saving wiring costs, simple circuit and convenient replacement

Pending Publication Date: 2019-08-13
深圳市惠博升科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an LED lamp bead, LED display system and LED display screen, aiming at solving the problem that the LED lamp bead is electrically connected to the LED driver chip through an external circuit, thus making the circuit of the LED display system complicated. If there are LED lamp beads or When the LED driver chip is broken, it is inconvenient to replace it

Method used

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  • LED lamp bead, LED display system and LED display screen
  • LED lamp bead, LED display system and LED display screen
  • LED lamp bead, LED display system and LED display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 Referring to Fig. 6, the LED lamp bead provided by Embodiment 1 of the present invention includes a base 11, an LED driver chip 12 mounted on the base 11, a red LED chip 13, a blue LED chip 14 and a green LED chip 15; The chip 12 is provided with a red light output terminal R, a green light output terminal G, a blue light output terminal B, a power supply input terminal VDD, a ground terminal GND, a first data input terminal DIN, a second data input terminal FDIN, and a first data output terminal DO1 , the second data output terminal DO2 and the enable terminal DENL; the LED lamp bead is provided with a power input pin VDD connected to the power input terminal VDD of the LED driver chip 12, a ground pin GND connected to the ground terminal GND of the LED driver chip 12, Connect the first data input pin DIN of the first data input terminal DIN of the LED driver chip 12, the second data input pin FDIN of the second data input terminal FDIN of the LED driver c...

Embodiment 2

[0060] see Figure 7 The difference between the LED lamp bead provided in the second embodiment of the present invention and the LED lamp bead provided in the first embodiment of the present invention is that the second data output terminal DO2 of the LED driver chip can be suspended, or the second data output terminal DO2 of the LED driver chip Both DO2 and the first data output terminal DO1 are connected to the first data output pin DO1 of the LED lamp bead, and the second data output terminal DO2 may not be provided, and the LED lamp bead is not provided with the second data output pin DO2. That is to say, the LED light bead provided by Embodiment 2 of the present invention has only one data output pin (the output data of DO1 and DO2 are the same and can be interchanged arbitrarily), and the light bead with only one DO1 or DO2, or the light bead with DO1 and DO2 can be used Any one of DO1 or DO2. see figure Figure 8 The LED lamp bead is provided with two first data input...

Embodiment 3

[0062] see Figure 9 to Figure 12 The difference between the LED lamp bead provided in the third embodiment of the present invention and the LED lamp bead provided in the first embodiment of the present invention is that: among the first data output terminal DO1 and the second data output terminal DO2 of the LED driver chip, one of the data output terminals Floating, or, both the second data output terminal DO2 and the first data output terminal DO1 of the LED driver chip are connected to the first data output pin DO1 or the second data output pin DO2 of the LED lamp bead, or only one data output pin can be set At the output end, the LED lamp bead is only provided with the first data output pin DO1 or the second data output pin DO2, and the LED lamp bead is also provided with an enable pin DENL connected to the enable terminal DENL of the LED driver chip. That is to say, the LED bead provided by Embodiment 3 of the present invention has only one data output pin and one enable ...

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Abstract

The invention is applicable to the field of LEDs, and provides an LED lamp bead, an LED display system and an LED display screen. The LED lamp bead comprises a base, and an LED driving chip, a red light LED chip, a blue light LED chip and a green light LED chip which are mounted on the base; the LED lamp bead is provided with a power input pin VDD which is connected with a power input end VDD of the LED driving chip, a grounding pin GND which is connected with the grounding end GND of the LED driving chip, a first data input pin DIN which is connected with a first data input end DIN of the LEDdriving chip, a second data input pin FDIN which is connected with a second data input end FDIN of the LED driving chip, and a first data output pin DO1 which is connected with a first data output end DO1 of the LED driving chip. The LED display system adopting the LED lamp bead is simple in circuit, does not need peripheral elements, only needs a power supply and a control panel, and is convenient to replace if the LED lamp bead or an LED driving chip is broken.

Description

technical field [0001] The invention belongs to the field of LEDs, and in particular relates to an LED lamp bead, an LED display system and an LED display screen. Background technique [0002] The LED display system in the prior art includes a controller and a plurality of series LED lamp bead groups electrically connected to the controller respectively, and each series series LED lamp bead group includes n LED lamp beads connected in series and n connected to each LED lamp respectively. The beads are electrically connected to the LED driver chip through an external circuit, and other electronic components are usually connected between the LED lamp bead and the LED driver chip. Since the LED lamp bead is electrically connected to the LED driver chip through an external circuit, the circuit of the LED display system is complicated. If any LED lamp bead or LED driver chip is broken, it is inconvenient to replace. Contents of the invention [0003] The object of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32H05B33/08H05B44/00
CPCG09G3/32H05B45/00
Inventor 李升强李思悦
Owner 深圳市惠博升科技有限公司
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