Display device for automatically testing PWM zero setting parameters

Abstract

The invention discloses a display device for automatically testing PWM zero setting parameters. The display device comprises a display screen main body; the periphery of the display screen main body is sleeved and fixedly connected with a fixing frame; a fixing groove is formed in the fixing frame; the fixing groove is of a frame-shaped structure and is located in the front surface of the displayscreen main body; sliding grooves are formed in the inner walls of the back surfaces of the two sides of the fixing groove; sliding mechanisms are installed on the two sides of the interior of the fixing groove; a fixing plate is installed between the sliding mechanisms jointly; and a sponge strip is installed on the back surface of the fixing plate. The display device has the beneficial effects that the fixing frame is provided with the fixing plate with the sponge strip, and the fixing plate is connected to the fixing frame in a sliding manner by the sliding mechanisms; and during use, the sponge strip slides on the surface of the display screen main body through the fixing plate, and dirt formed by foreign matter such as dust and sweat on the surface of the display screen main body is removed, so that the situation that the dirt formed by the foreign matter such as the dust and the sweat affects observation of workers on the display screen main body is avoided.

Description

Technical field[0001]The invention relates to the technical field of display devices, in particular to a display device for automatic testing of PWM zero-setting parameters.Background technique[0002]Many electronic devices are used in the automatic test of the PWM zero adjustment parameters. The display device is one of them, which is convenient for the staff to observe the test data. The display screen is also a display device.[0003]At present, most of the display screens used in the automatic test of the PWM zero adjustment parameters are exposed to the air. During use, foreign objects such as dust in the air will fall on the surface of the display screen, and the sweat from the staff’s fingers will also be stained on the surface of the display screen. Form stains, affecting the staff to observe the display screen.Summary of the invention[0004]The purpose of the present invention is to provide a display device for the automatic test of PWM zero adjustment parameters, so as to solv...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the display screens used in the automatic test of PWM zero adjustment parameters are exposed to the air. During use, foreign objects such as dust in the air will fall on the surface of the display screen, and the sweat on the fingers of the staff will also stick to the surface of the display screen. Formation of stains, affecting the staff to observe the display

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