Abstract: The present application discloses a protective film of electronic terminal configured to be attached to an electronic terminal mounted with a camera and protect a screen of the electronic terminal. The protective film of electronic terminal includes a protective film body and a shielding member. The protective film body is defined with an avoidance hole and an accommodating cavity. The avoidance hole is for avoiding the camera when the protective film body is attached to the electronic terminal and in communication with the accommodating cavity. The shielding member is movably arranged in the accommodating cavity for shielding or not shielding the camera.
Abstract: A base assembly includes a mounting structure and a support structure. The mounting structure includes a base body, a main body, and a guide rod provided between the base body and the main body. The support structure includes a sliding element and support legs. The sliding element is slidably connected to the guide rod. Each of the support legs is provided with a rotating end and a support end that are arranged opposite to each other. The rotating end is rotatably connected to the sliding element. The sliding element is slidable toward the main body to drive a plurality of support ends to approach each other, such that the base assembly is in a folded state. One of the base body and the support leg is provided with a first locking element, and the other of the base body and the support leg is provided with a second locking element.
Abstract: An infrared reflection device includes a power supply assembly, a plurality of switches, and two relatively disposed light-transmitting conductive substrates packaging a regulating area. Each of the light-transmitting conductive substrates comprise a light-transmitting substrate and an electrode layer. The regulating area is filled with a liquid crystal mixture; the electrode layers are arranged on opposite surfaces of the two light-transmitting substrates; the electrode layer of at least one of the light-transmitting conductive substrates comprises at least two mutually independent electrode areas; and electrode areas of the same light-transmitting conductive substrate, after being respectively connected in series to the switches, are jointly connected in parallel to the same electrode of the power supply assembly.
Type:
Grant
Filed:
November 15, 2017
Date of Patent:
December 5, 2023
Assignees:
SOUTH CHINA NORMAL UNIVERSITY, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICS
Abstract: A bulk acoustic wave resonator and a method of manufacturing the same are provided. The bulk acoustic wave resonator includes: a first carrier substrate; a barrier layer on a main surface of the first carrier substrate and configured to prevent an undesired conductive channel from being generated due to charge accumulation on the main surface; a buffer layer on a side of the barrier layer away from the first carrier substrate; a piezoelectric layer on a side of the buffer layer away from the barrier layer; a first electrode and a second electrode on opposite sides of the piezoelectric layer; a first passivation layer and a second passivation layer, respectively covering sidewalls of the first electrode and the second electrode; a dielectric layer between the first passivation layer and the buffer layer, wherein a first cavity is provided between the first passivation layer and the dielectric layer.