High tolerance liquid crystal display gating charge coupling device of photoelectric imaging system and preparation thereof

Abstract

The invention discloses a high-tolerance liquid crystal gating charge-coupled device in an electro-optical imaging system and a preparation method thereof. According to the invention, a dichroic filter, an infrared absorption filter telescope, control lines, miniature signal lines, a liquid crystal layer which is formed by a plurality of liquid crystal units and disconnected by a diaphragm, a phase plate, low-pass filter microscopes arranged on two sides of the phase plate, a silicon substrate layer, and an SiO2 oxide layer and a plurality of metal aluminum grid electrodes arranged below the substrate layer, are arranged in sequence from top to bottom on the charge-coupled device; the miniature signal lines are in one-way connection with the corresponding liquid crystal units; the liquid crystal units, P-type silicon units and the metal aluminum grid electrodes correspond to each other one by one; linear polarization films with mutually vertical polarization directions are adhered in proximity to the upper surface and the lower surface of each liquid crystal unit respectively; the SiO2 oxide layer grows on the lower surface of the silicon substrate, and the metal aluminum grid electrodes are also formed on the lower surface of the silicon substrate; and all the functional layers are adhered in proximity to the upper surface of the silicon substrate in sequence to form the high-tolerance liquid crystal gating charge-coupled device. The invention can be applied to a civil imaging system, improve the tolerance of the imaging system greatly, and achieve high-quality imaging.

Description

technical field [0001] The invention belongs to the technical field of photoelectric imaging, and relates to a device for a photoelectric imaging system, in particular to a high-tolerance liquid crystal gate charge-coupled device for a photoelectric imaging system, and the invention also relates to the high-tolerance liquid crystal gate charge-coupled device method of preparation. Background technique [0002] The photosensitive materials (devices) of film cameras and digital photoelectric imaging systems all involve latitude. The latitude of the imaging system refers to the ability of the photosensitive material to correctly record the brightness range of the scene in proportion, and is usually also called the exposure latitude. [0003] Digital photoelectric imaging system includes digital video camera, digital still camera and other digital photoelectric imaging equipment. Widely used in scientific research, industrial control and civilian fields. With the development ...

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Problems solved by technology

Moreover, the minimum sensitivity of civilian cameras currently in use is generally ISO50, which is not convenient for creative photography such as long exposure.

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