نتایج جستجو برای: صفحه نمایش های oled
تعداد نتایج: 483877 فیلتر نتایج به سال:
We investigated the luminance enhancement, spectral shift and image blur of the OLED with the microlens array film (MAF) attachment experimentally and theoretically. Higher density, larger curvature, and smaller diameter of the microlenses extracted more light from the substrate mode. The maximum improvements of the luminance at the normal direction and the total power were 42.5% (80%) and 45% ...
A new voltage-programmed pixel circuit using soluble-processed organic thin film transistors (OTFTs) for an active matrix organic light emitting diode (AMOLED) is proposed. The proposed circuit is composed of four switching TFTs, one driving TFT and one storage capacitor, which is simulated by HSPICE. The proposed circuit can compensate for the non-uniformity of OLED current caused by the thres...
Hydrogenated polymorphous Silicon allows to fabricate TFTs with very interesting characteristics including better threshold voltage stability than a-Si TFTs, lower leakage current than μc-Si:H TFTs and excellent uniformity. Investigation of threshold voltage shift mechanisms of pm-Si:H TFTs has shown a specific semiconductor material degradation with different activation energies compared to a-...
Based on thin film optical theory (TFO), we build 1D and 2D simulation model of micro OLED. TFO is used to simulate the spectrum OLED with flat structure, real 3D structure. The matching degree between mesurement are both larger than 80% in all viewing angles, characteristics can be simulated more accurately. Moreover, it first time industry.
Extracting light from the waveguide mode in organic light-emitting diodes (OLED) is most challenging as such optical intrinsic traditional OLED due to materials and layered structure used device. This work intends address root cause of trapping problem. We systematically analyzed OLEDs made with an ultrathin Ag anode found that modes can be completely eliminated by designing a below cutoff thic...
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