Abstract: A three-dimensional (3D) object scanner includes: an object platform configured to host a target object; a projector device configured to project a first light pattern on to the target object; an LED screen that surrounds the object platform and configured to emit a second light pattern; an imaging device configured to obtain a plurality of images of the target object from multiple view angles as the target object and the imaging device are relatively rotated to multiple rotation degrees. The plurality of images include images obtained when the projector device projects the first light pattern and images obtained when the LED screen emits the second light pattern. The images are used to determine 3D information and texture information of the target object.

Abstract: Provided are an organic compound and an application thereof. The compound has a relatively deep LUMO energy level, which may reduce a potential barrier of electron transport, improve an electron injection capability and effectively reduce a voltage of an OLED device. The compounds each have a relatively deep HOMO energy level, which may effectively block holes so that more holes and electrons are recombined in a light-emitting region, achieving relatively high luminescence efficiency. An electron transport layer material and/or a hole blocking layer material suitable for the OLED device can reduce the voltage and power consumption of the device, improve the luminescence efficiency and extend a working lifetime so that the OLED device has better comprehensive performance.