IR transmissivity test instrument of touch screen panel

Abstract

The invention aims at forming IR printing patterns of a touch screen panel rapidly and accurately. A device for measuring the transmittance of a TSP comprises a body, a holder, a moving tool and an irradiating stand. The body includes a control chassis, an operation panel and an IR lamp. The holder is placed on the body and is equipped with a touch screen panel having IR printing patterns in fixed portions. The moving tool disposed on the holder enables the touch screen panel to move up and down or left and right and to clings to or be fixed to one side. The irradiating stand is fixed to a fixed support and enables an isolated space to be formed between the vertical fixed support and the holder. In the above state, the device comprises a light receiving unit and a light emitting unit. The light receiving unit is arranged on the body or the holder and is capable of confirming light transmission. An optical cable connected to a body by the fixing unit is installed at a position corresponding to the light receiving unit. The light emitting unit fully reflects toward the light receiving unit.

Description

technical field [0001] The purpose of the present invention is to detect an infrared (IR) printing pattern formed on a touch screen panel (TSP). That is, when the body is close to and exceeds a certain distance, it acts as an IR printing mode that makes it impossible to realize the touch function. The IR printed pattern is formed on the TSP on the proximity illumination sensor. The present invention relates to a transmittance detector dedicated to a touch panel that rapidly and accurately detects the above-mentioned IR printing mode. Background technique [0002] In general, communication terminal equipment suitable for TSP is configured with a proximity lighting sensor that turns off the screen in order to prevent the call button or number keys on the touch panel from being pressed due to body contact when the bodies are close to each other. [0003] The proximity lighting sensor is installed in the hole on the upper part of the liquid crystal. Usually, the proximity ligh...

AI Technical Summary

Problems solved by technology

[0007] However, this kind of inspection equipment is not a problem when inspecting IR filters or films above a certain scale, but when inspecting small-scale IR printing patterns of 2~5mm, it contains a lot of errors due to the reflector moving up and down. question of value

[0008] That is, it includes the angle of the reflector moving up and down, the material, the degree of reflection and absorption caused by the weather, etc., which hinder the accurate measurement, and because the size range of the measured IR printing pattern is only within 2~5mm, so The measured value will inevitably contain a lot of error values, resulting in the problem of inaccurate data, and the problem of high price due to the installation of high-priced optical lenses

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