The color quantization is an important operation in determining a set of K representative colors that resemble the N colors in an image. This investigation is motivated by the desire to demonstrate the fast, highquality reproduction of color image with a quali¿ed color palette. This work develops an algorithm for a color palette, which ¿rstly utilizes an expanding tree and splits the node with the greatest error distortion into eight children nodes, and then ¿ne-tunes all terminal leaves to approximate its nearest cluster. Experimental results reveal that this algorithm outperforms Octree, Median Cut, and HF approaches.
By weak bonding method, the first organic light‐emitting diode (OLED) display with 620°C low‐temperature poly‐silicon (LTPS) thin film transistor (TFT) and touch sensor, without polyimide (PI) substrate, formed on glass substrates is transferred to non‐PI flexible substrates. After transfer, the display image is free from defect, and touch sensor functions normally. Compared with device made on PI substrate, the advantages of device stability and pitch variation by transferring are shown.
By weak bonding method, the first OLED display with 620℃ LTPS TFT and touch sensor, without PI substrate, formed on glass substrates are transferred to non-PI flexible substrates respectively. After transfer, the display image is free from defect and touch sensor functions normally. The advantages of transferring are shown.
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