Photoelectric display device and detection device and method

Abstract

The invention provides a photoelectric display device and a detection device and method, and belongs to the technical field of circuit detection. The photoelectric display device comprises a substrate, an opposite substrate and a display medium. The substrate is provided with two side surfaces, one side surface is provided with multiple first electrode plates, the other side surface is correspondingly provided with multiple second electrode plates, each first electrode plate is electrically connected with the corresponding second electrode plate through a conductive hole, the opposite substrate and the substrate are oppositely arranged, and the display medium is arranged between the substrate and the opposite substrate. The detection method comprises the steps that voltage is applied to the photoelectric display device and a circuit substrate, and the photoelectric display device achieves the effect of an electric control light valve, so that circuit electric features are displayed on the photoelectric display device, finally, short circuit and disconnection conditions of a circuit can be accurately and visually judged, and the photoelectric display device and the detection device and method can be used for quality control over a surface-mounted circuit board.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to an optoelectronic display device, a detection device and a method thereof for detection of surface mount circuit substrates. Background technique [0002] In recent years, liquid crystal display technology has developed rapidly. Liquid crystal display technology is an electro-optical conversion technology, that is, according to the magnitude of the electric field applied on both sides of the liquid crystal, the arrangement state of the liquid crystal is changed, thereby changing the direction of the light path through the liquid crystal layer, and finally changing the light output effect of the liquid crystal display device. [0003] like Figure 1A , 1B As shown, a detection device for detecting the electrical characteristics of a circuit substrate uses a PDLC type photoelectric display device 10 suspended on the circuit substrate 14 . in, Figure 1A Because the electro-opti...

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Problems solved by technology

However, the thinner the substrate is, the easier it is to be worn by the circuit substrate when it frequently contacts the circuit substrate. Therefore, the display screen needs to keep a certain distance from the circuit substrate, but the existence of this distance will also weaken the electric field strength loaded on the liquid crystal.

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