Due to the excellent optoelectronic properties,fast response time,outstanding power efficiency and high stability,micro-LED plays an increasingly important role in the new generation of display technology compared wit...Due to the excellent optoelectronic properties,fast response time,outstanding power efficiency and high stability,micro-LED plays an increasingly important role in the new generation of display technology compared with LCD and OLED display.This paper mainly introduces the preparation methods of the GaN-based micro-LED array,the optoelectronic characteristics,and several key technologies to achieve full-color display,such as transfer printing,color conversion by quantum dot and local strain engineering.展开更多
If single chip micro computer controls light-emitting diode(LED),it needs abundant peripheral resources,but in this way,it is not convenient to be expanded,modified and maintained.In order to overcome these shortcomin...If single chip micro computer controls light-emitting diode(LED),it needs abundant peripheral resources,but in this way,it is not convenient to be expanded,modified and maintained.In order to overcome these shortcomings,field programmable gate array(FPGA)is used to control LED.The hardware design uses low power consumption and high performance device EP1C6Q240C8.Quartus II is the software development environment.There are three modules built under the software development environment:divided clock module,word stock module and LED dot matrix display module,and these independent modules are connected to be a whole system.Finally,32×64 dot matrix display is realized successfully.It is convenient for the customer to adjust the three independent modules according to actual demands and it is easier to realize online updation.展开更多
索尼日前宣布已开发出下一代自发光显示技术"CrystalLED Display",并在2012国际消费电子展上展示了一台55英寸、支持1080高清显示的"Crystal LED Display"电视原型机,成为全球首台采用LED背光源的55英寸1080高清自发光式电视机。"C...索尼日前宣布已开发出下一代自发光显示技术"CrystalLED Display",并在2012国际消费电子展上展示了一台55英寸、支持1080高清显示的"Crystal LED Display"电视原型机,成为全球首台采用LED背光源的55英寸1080高清自发光式电视机。"Crystal LED Display"是一种结合了索尼独特方式的自发光式显示技术,展开更多
早在苹果公司还被称为苹果电脑公司的时候,苹果电脑在我们心中就一直拥有至高无上的地位,而当时令我们揣度不透的是,苹果的设计为何如此迷人?其实苹果产品设计的黄金法则不在于工艺精致、用料讲究,而在内蕴于设计中的激情与创新。...早在苹果公司还被称为苹果电脑公司的时候,苹果电脑在我们心中就一直拥有至高无上的地位,而当时令我们揣度不透的是,苹果的设计为何如此迷人?其实苹果产品设计的黄金法则不在于工艺精致、用料讲究,而在内蕴于设计中的激情与创新。它贯穿到苹果的每款产品之中,如同万有引力一般随产品至始至终存在,也同样存在于Apple Mac mini和Apple LED Cinema Display——2009年具有最强大眼球引力场的家庭组合之中。展开更多
给出了一个基于C PL D/FPG A设计的软件模块化L E D显示电路.通过串行扫描方式驱动LE D数码管,可较少地占用可编程器件资源;并利用M A X P LU S II对动态扫描L E D显示电路进行仿真.最后,对动态扫描显示下数码管的亮度降低的原因进行分...给出了一个基于C PL D/FPG A设计的软件模块化L E D显示电路.通过串行扫描方式驱动LE D数码管,可较少地占用可编程器件资源;并利用M A X P LU S II对动态扫描L E D显示电路进行仿真.最后,对动态扫描显示下数码管的亮度降低的原因进行分析,认为采用降低扫描频率,增大脉冲光对人眼的作用时间和增大驱动电流来提高LE D显示器亮度.展开更多
Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with rem...Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with remarkably narrow bandwidths,high quantum yield,and solution processability.Despite recent advances have pushed the luminance efficiency of monochromic perovskite light-emitting diodes(PeLEDs)to their theoretical limits,their current fabrication using the spincoating process poses limitations for fabrication of full-color displays.To integrate PeLEDs into full-color display panels,it is crucial to pattern red–green–blue(RGB)perovskite pixels,while mitigating issues such as cross-contamination and reductions in luminous efficiency.Herein,we present state-of-the-art patterning technologies for the development of full-color PeLEDs.First,we highlight recent advances in the development of efficient PeLEDs.Second,we discuss various patterning techniques of MPHs(i.e.,photolithography,inkjet printing,electron beam lithography and laserassisted lithography,electrohydrodynamic jet printing,thermal evaporation,and transfer printing)for fabrication of RGB pixelated displays.These patterning techniques can be classified into two distinct approaches:in situ crystallization patterning using perovskite precursors and patterning of colloidal perovskite nanocrystals.This review highlights advancements and limitations in patterning techniques for PeLEDs,paving the way for integrating PeLEDs into full-color panels.展开更多
基金National Natural Science Foundation of China(NSFC)(61974031,61705041 and 61571135)Shanghai Sailing Program(17YF1429100)+2 种基金Shanghai Technical Standard Program(18DZ2206000)State Key Laboratory of Intense Pulsed Radiation Simulation and Effect Funding(SKLIPR1607)National Key Research and Development Program of China(2017YFB0403603).
文摘Due to the excellent optoelectronic properties,fast response time,outstanding power efficiency and high stability,micro-LED plays an increasingly important role in the new generation of display technology compared with LCD and OLED display.This paper mainly introduces the preparation methods of the GaN-based micro-LED array,the optoelectronic characteristics,and several key technologies to achieve full-color display,such as transfer printing,color conversion by quantum dot and local strain engineering.
文摘If single chip micro computer controls light-emitting diode(LED),it needs abundant peripheral resources,but in this way,it is not convenient to be expanded,modified and maintained.In order to overcome these shortcomings,field programmable gate array(FPGA)is used to control LED.The hardware design uses low power consumption and high performance device EP1C6Q240C8.Quartus II is the software development environment.There are three modules built under the software development environment:divided clock module,word stock module and LED dot matrix display module,and these independent modules are connected to be a whole system.Finally,32×64 dot matrix display is realized successfully.It is convenient for the customer to adjust the three independent modules according to actual demands and it is easier to realize online updation.
文摘索尼日前宣布已开发出下一代自发光显示技术"CrystalLED Display",并在2012国际消费电子展上展示了一台55英寸、支持1080高清显示的"Crystal LED Display"电视原型机,成为全球首台采用LED背光源的55英寸1080高清自发光式电视机。"Crystal LED Display"是一种结合了索尼独特方式的自发光式显示技术,
文摘早在苹果公司还被称为苹果电脑公司的时候,苹果电脑在我们心中就一直拥有至高无上的地位,而当时令我们揣度不透的是,苹果的设计为何如此迷人?其实苹果产品设计的黄金法则不在于工艺精致、用料讲究,而在内蕴于设计中的激情与创新。它贯穿到苹果的每款产品之中,如同万有引力一般随产品至始至终存在,也同样存在于Apple Mac mini和Apple LED Cinema Display——2009年具有最强大眼球引力场的家庭组合之中。
文摘给出了一个基于C PL D/FPG A设计的软件模块化L E D显示电路.通过串行扫描方式驱动LE D数码管,可较少地占用可编程器件资源;并利用M A X P LU S II对动态扫描L E D显示电路进行仿真.最后,对动态扫描显示下数码管的亮度降低的原因进行分析,认为采用降低扫描频率,增大脉冲光对人眼的作用时间和增大驱动电流来提高LE D显示器亮度.
基金the National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIT)(Grant No.2021R1C1C1007997).
文摘Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with remarkably narrow bandwidths,high quantum yield,and solution processability.Despite recent advances have pushed the luminance efficiency of monochromic perovskite light-emitting diodes(PeLEDs)to their theoretical limits,their current fabrication using the spincoating process poses limitations for fabrication of full-color displays.To integrate PeLEDs into full-color display panels,it is crucial to pattern red–green–blue(RGB)perovskite pixels,while mitigating issues such as cross-contamination and reductions in luminous efficiency.Herein,we present state-of-the-art patterning technologies for the development of full-color PeLEDs.First,we highlight recent advances in the development of efficient PeLEDs.Second,we discuss various patterning techniques of MPHs(i.e.,photolithography,inkjet printing,electron beam lithography and laserassisted lithography,electrohydrodynamic jet printing,thermal evaporation,and transfer printing)for fabrication of RGB pixelated displays.These patterning techniques can be classified into two distinct approaches:in situ crystallization patterning using perovskite precursors and patterning of colloidal perovskite nanocrystals.This review highlights advancements and limitations in patterning techniques for PeLEDs,paving the way for integrating PeLEDs into full-color panels.