Abstract With the ever-growing demands for larger size and high resolution displays, Micro-light-emitting diode (Micro-LED) display with quantum dots (QDs) film as color conversion layers (CCLs) has become one of most promising candidates future its advantages in low power consumption wide range. In this study, we report a novel full-color based on blue Micro LED, which patterned red green QDs ...

The phosphor-converted warm W-LED have being rapidly developed due to the stringent requirements of general illumination. Here, we utilized a strategy to synergistically enhance the red region and emission intensity of novel Eu-activated yellow-emitting LaSiO2N phosphors. This was realized by predicting optimum crystal structure, and governing the concentration of doping ions as well as prepara...

This paper offers a novel algorithm to better design LEDs arrays for illumination systems. First, the illuminance distribution of LED arrays is studied through theoretical analysis. Second, we present the algorithm criterion and steps. And finally, we use computer to simulate and verify this method. The results show that the illumination uniformity is significantly affected by the spacing of ea...

Technology has become an essential part in every aspect of our lives. However the key to a successful implementation of a technology depends on the acceptance by the general public. In order to increase the acceptance various approaches can be applied. In this paper, we will examine the humanrobot emotional interaction by investigating the capabilities of a developed low-resolution RGB-LED disp...

Hemoglobin (Hb) is an important component of red blood cells. This paper presents an optical non-contact technique that provides Hb concentration measurement. The absorption coefficient of blood differs at different wavelength this fact is used to calculate the optical characteristics of blood. In this newly developed system, absorption of light by oxygenated and deoxygenated hemoglobin is meas...

White-light emitting diode lamps for general illumination can be realized by a combination of a blue light-emitting diode semiconductor die and phosphors. Newly developed oxynitride and nitride phosphors are promising candidates for this application because they have suitable excitation and emission wavelengths and stable optical properties in a high temperature environment. High brightness war...