CSOT 31″ UHD Inkjet Printed AMOLED, MicroLED, Flexible Mini LED, PE-OLED Perovskite, 22″ Light Field

Posted by Charbax – July 2, 2019

At SID Display Week 2019, China Star Optoelectronics Technology (CSOT) shows the world's first 31” IJP UD AMOLED display, with 31 inch UHD AMOLED display produced by inkjet printing technology, which is suitable for large size OLED display mass production because of its simple process flow and high material utilization. The resolution of this display reaches 144ppi, equivalent to a 65inch 8K display. This product employs a top emission device structure. It reaches 100% NTSC, and DCI-P3 coverage ratio is higher than 95%.

CSOT also shows the world’s first AM-Micro LED Display with IGZO TFT, this way a large size AM micro LED Display can be realized with 8bit RGB color depth, more than 100% NTSC color gamma, using RGB micro LED thin film chip to achieve full color display, the prototype exhibits high color gamma, high contrast ratio, high transparent, and low power consumption; it has great potential to be the next generational display.

CSOT also shows world’s first 8”Flexible Mini LED full color AM-Mini LED Display prototype exhibiting high flexiblility, high color gamma, high transparency, and high reliability. It also maintains the advantages of Mini LED, such as low power consumption, high contrast ratio, and high brightness; this Mini LED shows better performance than most commercial displays; and it has great potential to be the next generation display.

CSOT 6.6” PE-OLED adopts a unique structure design, 3-stack top emission blue OLED with Perovskite Color Conversion to bring the possibility of high order display in the future, with high color gamut and wide viewing angle. Perovskite, a new luminescent material, has advantages of simple synthesis, environmentally friendly, high luminescent efficiency and simple tunable wavelengths. Perovskite Color Conversion has narrow FWHM, high color purity and excellent optical and electrical properties. 3-stack Blue OLED, independent development of 3-stack OLED structure by CSOT, bringing a high brightness and stable blue light.

CSOT shows 6.6” QD-OLED adopts a unique structure design, 3-stack top emission blue OLED with Quantum Dots Color Filter(IJP) to bring the possibility of high order display in the future , with high color gamut and wide viewing angle. 3-stack Blue OLED, independent development of 3-stack OLED structure by CSOT, bringing a high brightness and stable blue light;
Inkjet printing QDCF, design unique QD layer structure, reduce QD fluorescence loss;

14” Flexible LCD has a curvature radius of 100 mm. It can adapt to the display requirements of small curvature and multi-curvature, which makes it possible to use LCD panel in more application scenarios. CSOT self develop BPS technology to avoid possible light leakage in flexible LCD display. COA technology is used to avoid the possible mixing problem of flexible LCD. Transparent PI as substrate and combining with BCE/IGZO technology is expected to provide stable display image on large size panel.

COST 22” Light Field Display device, uses high brightness backlight and dual-LCD structure, with 2D+D ray tracing algorithm, expect exhibiting a novel light field autostereoscopic display technology. Optimized optical film design, bring high picture quality of multi-layer without any Moire patterns, while guaranteeing transmittance and contrast ratio. With high brightness backlight,the display provides comfortable environment for obersever. Novel algorithm of light field description and reconstruction using single one view point image and its depth, mitigating vergence-accommodation conflict, bring Comfortable experience of 3D viewing

28” PNLC Transparent Display An 28 inch transparent LCD of CSOT adopts PNLC none-polarizer & RGBW structure with 50% W ratio to bring high transmittance. With mature array technique as 4PEP a-Si & COA structure have higher possibility for mass production in commercial applications. None-polarizer structure with scattering type PNLC improved more than 25% transmittance. 4PEP a-Si & COA structure array technology With mature array technique have higher possibility for mass production in commercial application.

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