33.1L: <i>Late‐News Paper</i>: High Resolution 4.4” AMOLED Display with 413 ppi Real Pixel Density

Chen, Chung-Chia; Cho, Ting-Yi; Fu, Jing‐Jie; Hsiao, Hsin-Huang Michael; Weng, Zai‐Xien; Tsai, Chih‐Hung; Chung, Chieh-Hsing; Lo, Kuo-Chang; Lo, Wen-Hung; Chang, Tsu‐Chiang; Lin, Yu-Shen

doi:10.1002/j.2168-0159.2013.tb06235.x

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…The individual color emission could be obtained from the white emission by micro-cavity effect and CF. 3,4 We also modified the pre-patterned electrode to improve array production reliability. The pre-patterned electrode consisted of a contact layer, a reflective layer, a transparent conductive layer, and a thin protection layer.…”

Section: Resultsmentioning

confidence: 99%

“…The protection layer can prevent etching damage and possible out-gasing; more detail can be obtained in our previous work. 4 Above the protection layer, transparent conductive layers were then selectively patterned with different thickness according to the required optical length for red, green, and blue sub-pixels, respectively. The organic layers were then evaporated in sequence, and a thin metal was deposited as the cathode with at last an organic capping layer above it.…”

Section: Resultsmentioning

confidence: 99%

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Letter: Novel approaches to realize high‐resolution AMOLED display

et al. 2015

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Two different approaches to realize high‐resolution active‐matrix organic light‐emitting device (AMOLED) display were delivered. By adopting specific organic light emitting diode (OLED) structure with pre‐pattern electrode and the utilization of color filter, we successfully simplify the fabrication process with fine metal mask (FMM)‐free or one‐FMM solutions. Each approach was demonstrated with a 4.4″ panel with 413 ppi pixel density based on real stripe RGB. Both panels possessed low power consumption, low reflectivity, and superior NTSC performance. Because the utilization of FMM was avoided or reduced, higher production yield, higher throughput, and lower cost could be achieved. Therefore, these two approaches are very promising for mass production of high‐resolution AMOLED display.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Letter: Novel approaches to realize high‐resolution AMOLED display

et al. 2015

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“…The CF can absorb the unwanted sub‐peak emission thus alleviate the color variation when observing from large viewing angles. The CF array can also replace CPL to eliminate OLED panel reflection due to metal electrode . Therefore, the power consumption was also greatly reduced.…”

Section: Panel Design and Fabrication Processmentioning

confidence: 99%

“…The CF array can also replace CPL to eliminate OLED panel reflection due to metal electrode. 15 Therefore, the power consumption was also greatly reduced. Moreover, the introduction of CF array saturated the emission spectra, resulting in an even higher coverage of BT.2020 color space.…”

Section: Bt2020 Color Spacementioning

confidence: 99%

Achieving a foldable and durable OLED display with BT.2020 color space using innovative color filter structure

Lee

Wang

Chan

et al. 2017

Jnl Soc Info Display

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A foldable active‐matrix organic light‐emitting diode display capable of enduring very severe folding and environmental impact was obtained using symmetric panel stacking with an innovative design of color filter structure. The display was subjected to in situ folding cycle under an ambient test condition of 60°C/90% relative humidity, and no performance degradation was found for the display and the touch function during and after the test. In addition, 95% coverage of BT.2020 color space was obtained without additional power consumption compared with that of the panel with National Television System Committee (NTSC) color space.

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“…Currently the best method to achieve high resolution AMOLED without a FMM is to fabricate a white OLED and employ a color filter. However, this technique leads to higher power consumption and lower color purity compared to a direct side-by-side (SBS) RGB layout [2][3]. The combination of cavity tuned white OLED and corresponding color filter (including black matrix) can reduce the reflection of external illumination.…”

Section: Introductionmentioning

confidence: 99%

47‐3: High Efficiency and High PPI AMOLED with Cavity Tuned by Inkjet Printed Hole Injection Layer

Lee

Chen

et al. 2018

Symp Digest of Tech Papers

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A low-cost AMOLED with 10µm sub-pixel width is fabricated without using a FMM. Solution hole injection layers were printed on a TFT array panel to replace multiple thicknesses of ITO commonly used for cavity tuning, resulting in a new process with low cost and high pixel density. The panel using inkjet-printed hole injection layer achieved the same performance as a panel using ITO only. The panel achieved a high NTSC ratio of 95.6% coverage and a reflectivity of ambient light lower than 6%, thanks to a precise alignment of AMOLED sub-pixels and a RGB color filter rather than a circular polarizer.

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33.1L: Late‐News Paper: High Resolution 4.4” AMOLED Display with 413 ppi Real Pixel Density

Cited by 13 publications

References 8 publications

Letter: Novel approaches to realize high‐resolution AMOLED display

Letter: Novel approaches to realize high‐resolution AMOLED display

Achieving a foldable and durable OLED display with BT.2020 color space using innovative color filter structure

47‐3: High Efficiency and High PPI AMOLED with Cavity Tuned by Inkjet Printed Hole Injection Layer

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