Check patentability & draft patents in minutes with Patsnap Eureka AI!

Light-emitting diode driving apparatus and light-emitting diode driver

A technology of light-emitting diodes and driving devices, applied in energy-saving control technology, electrical components, etc., can solve the problems of limiting data signal and clock signal transmission speed, clock signal and data signal transmission speed limitation, etc., and achieve chip area and power consumption cost The effect of reducing and increasing the transmission speed

Active Publication Date: 2021-02-23
NOVATEK MICROELECTRONICS CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the cascaded LED driver transmission interface, since the clock signal and data signal are single-ended signals, the transmission speed of the clock signal and data signal will vary depending on the voltage swing range of the clock signal and data signal, the parasitic capacitance of the clock signal line and the environment. limited by noise
In addition, the skew between the clock signal and the data signal in each LED driver in the cascaded LED driver may cause another problem and further limit the transmission speed of the data signal and the clock signal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light-emitting diode driving apparatus and light-emitting diode driver
  • Light-emitting diode driving apparatus and light-emitting diode driver
  • Light-emitting diode driving apparatus and light-emitting diode driver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] Embodiments of the present disclosure are explained below with reference to the drawings.

[0066] figure 1is a schematic diagram of an LED driving device 100 according to an embodiment of the present disclosure. The LED driving device 100 includes a plurality of LED drivers 101 , a controller 102 and a plurality of LEDs 103 . The plurality of LED drivers 101 includes cascaded N-level LED drivers from LED driver 1 to LED driver N, and N is a positive integer. The controller 102 outputs the data signal DATA including the first data packet differential signal and the clock signal SCLK including the first clock differential signal to the first-stage LED driver 1, and the first-stage LED driver 1 receives the first data packet differential signal and the second A clock differential signal and output the second data packet differential signal and the second clock differential signal to the second-level LED driver 2, and the Mth-level LED driver M receives the Mth data pack...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and aMth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.

Description

technical field [0001] The present disclosure relates to a light-emitting diode (LED) driving device. Background technique [0002] Cascaded LED driver transmission interfaces are usually used in LED display systems. In the cascaded LED driver transmission interface, since the clock signal and data signal are single-ended signals, the transmission speed of the clock signal and data signal will vary depending on the voltage swing range of the clock signal and data signal, the parasitic capacitance of the clock signal line and the environment. noise is limited. In addition, the skew between the clock signal and the data signal in each LED driver in the cascaded LED drivers may cause another problem and further limit the transmission speed of the data signal and the clock signal. [0003] Recently, with the increasing demand for high-resolution and better-performance LED display systems, a more creative technology is needed to eliminate the deviation between the data signal a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H05B45/10H05B45/30
CPCH05B45/10H05B45/30Y02B20/40
Inventor 叶哲维梁可骏王裕翔方柏翔黄如琳
Owner NOVATEK MICROELECTRONICS CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com