显示标签为“QVGA lcd”的博文。显示所有博文
显示标签为“QVGA lcd”的博文。显示所有博文

2016年5月22日星期日

Tsingtek lcd module displays with perfect quality, excellent service, competitive prices

Tingtek photoelectric professional design and production of liquid crystal display (LCD), LCD module (LCM / LCD module) and OLED, QVGA lcd,the main products are TN, STN, FSTN and OLED modules; Features include: low-voltage low-power LCD, ultra-low temperature liquid crystal, Chinese library LCD, LCD with warming. And developed a series applies to electricity, coal, oil, defense and other industries with high reliability products. OLEDs is the focus of one of the items of photoelectric research and development. Because OLED self-luminous, extremely wide viewing angle, light, thin; fast response, wide temperature range; high brightness, high luminous efficiency; seismic capability and a series of advantages, it is known as the ideal future displays. Tingtek through the ISO9001 international quality certification with perfect quality, excellent service, competitive prices.

2015年11月24日星期二

Differences of LED and OLED

Although there are light emitting semiconductor, but there are differences between the LED and OLED structure, the main difference is:
1) OLEDs exciton with different LED's the light emitting , LED is formed by injecting electrons and holes excitons, light color depends on the composition of the semiconductor band gap; OLED form excitons by injecting electrons and holes, shock sub attenuation and light, the luminescent color depending on the fluorescence spectra of organic molecules.
2) an organic film QVGA lcd regardless of molecular size or polymer, are generally amorphous thin film (organic material by thermal evaporation, molecules evaporate at room temperature on a substrate to form a thin film supercooled state), and is a great band gap insulation membrane,the inorganic LED is ordered doped semiconductor single crystals.
3) carrier transport process in the OLED and LED are also different, the charge moves between organic molecules by the molecular ionization, such as a hole transfer in the molecule is actually neutral and positively charged molecules repeated oxidative intermolecular and restore process. The inorganic semiconductor charge transport by the band conduction.