scholarly journals Micro-LEDs, a Manufacturability Perspective

2019 ◽  
Vol 9 (6) ◽  
pp. 1206 ◽  
Author(s):  
Kai Ding ◽  
Vitaliy Avrutin ◽  
Natalia Izyumskaya ◽  
Ümit Özgür ◽  
Hadis Morkoç
Keyword(s):  
Liquid Crystal Display ◽  
Light Emitting Diode ◽  
High Volume ◽  
Fast Response ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Full Color ◽  
Wide Color Gamut ◽  
Technological Developments ◽  
Long Lifetime

Compared with conventional display technologies, liquid crystal display (LCD), and organic light emitting diode (OLED), micro-LED displays possess potential advantages such as high contrast, fast response, and relatively wide color gamut, low power consumption, and long lifetime. Therefore, micro-LED displays are deemed as a promising technology that could replace LCD and OLED at least in some applications. While the prospects are bright, there are still some technological challenges that have not yet been fully resolved in order to realize the high volume commercialization, which include efficient and reliable assembly of individual LED dies into addressable arrays, full-color schemes, defect and yield management, repair technology and cost control. In this article, we review the recent technological developments of micro-LEDs from various aspects.

Characteristics of thin film transistors fabricated employing various sequential lateral solidification poly-Si microstructures

2004 ◽  
Vol 19 (2) ◽  
pp. 481-487 ◽  
Author(s):  
Ji-Yong Park ◽  
Hye-Hyang Park ◽  
Ki-Yong Lee ◽  
Ho-Kyoon Chung
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Liquid Crystal Display ◽  
Light Emitting Diode ◽  
Superior Performance ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Average Value ◽  
Sequential Lateral Solidification ◽  
Device Properties

Sequential lateral solidification (SLS) is known to be a promising method to make low-temperature poly-Si thin film transistors (LTPS TFTs) with superior performance for fabrication of highly circuit-integrated flat panel displays such as TFT liquid crystal display and TFT organic light-emitting diode. The dependence of TFT characteristics on the details of the SLS poly-Si microstructures was studied by varying the size, direction, and shape of the grains by applying different SLS crystallization mask patterns and processing details. The TFTs results demonstrated that various device properties and characteristics are obtained depending on the specifics of the microstructures. Nearly direction-insensitive TFTs of mobility about 300 cm2/V·s (within 5% variation of average value) were successfully fabricated by controlling the microstructures. Such a characteristic is recognized as being desirable for an optimal integration of the peripheral circuits.

scholarly journals Full-Color LCD Microdisplay System Based on OLED Backlight Unit and Field-Sequential Color Driving Method

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Sungho Woo ◽  
Dae-Hwan Kim ◽  
Yoon Soo Han ◽  
Byeong-Dae Choi
Keyword(s):  
Light Emitting Diode ◽  
Frame Rate ◽  
Driving Frequency ◽  
Light Emitting ◽  
Organic Layers ◽  
Organic Light Emitting Diode ◽  
Full Color ◽  
Organic Light ◽  
Color Mixing ◽  
The Given

We developed a single-panel LCD microdisplay system using a field-sequential color (FSC) driving method and an organic light-emitting diode (OLED) as a backlight unit (BLU). The 0.76′′ OLED BLU with red, green, and blue (RGB) colors was fabricated by a conventional UV photolithography patterning process and by vacuum deposition of small molecule organic layers. The field-sequential driving frequency was set to 255 Hz to allow each of the RGB colors to be generated without color mixing at the given display frame rate. A prototype FSC LCD microdisplay system consisting of a 0.7′′ LCD microdisplay panel and the 0.76′′ OLED BLU successfully exhibited color display and moving picture images using the FSC driving method.

Flexible high-resolution full-color top-emitting active-matrix organic light-emitting diode display

2013 ◽  
Vol 21 (10) ◽  
pp. 422-432 ◽  
Author(s):  
Akihiro Chida ◽  
Tomoya Aoyama ◽  
Shingo Eguchi ◽  
Tatsunori Inoue ◽  
Naoyuki Senda ◽  
...  
Keyword(s):  
High Resolution ◽  
Light Emitting Diode ◽  
Active Matrix ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Full Color ◽  
Organic Light

Fabrication of an organic light-emitting diode inside a liquid crystal display

2013 ◽  
Vol 545 ◽  
pp. 471-475 ◽  
Author(s):  
Jiun-Haw Lee ◽  
Wei-Fu Chang ◽  
Cheng-Che Wu ◽  
Chi-Feng Lin ◽  
Jiunn-Yih Lee ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light
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