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Office Address: West Industrial Jiepai Town, Danyang City, Jiangsu, China

Contact: Rachel Hu

Tel: +86-511-86375120

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How To Judge The Quality Of The Roof Lights
Jun 02, 2017

How to identify the quality of the Taxi Top Light are good or bad. Can be judged from the following aspects:

1, Taxi Top Light white balance effect: white balance effect is one of the most important indicators of the display. Color when the red, green and blue three primary colors ratio of 14.60.16 will show a pure white, if the actual ratio of a slight deviation will appear white balance deviation, we should pay attention to whether the white is blue, yellowish green phenomenon The White balance is mainly determined by the control system to determine the screen, the color of the reductive also affected.

2, Taxi Top Light screen display flatness to within ± 1mm to ensure that the display image does not occur distorted, local bulge or recess will lead to the visual angle of the display appears dead. The flatness is determined by the production process.

3, the Taxi Top Light light screen with or without color: color block is adjacent to the module there is a significant difference between the color transition to the module as a unit caused by the phenomenon of color is mainly by the control system is poor, gray level Not high, the frequency of scanning caused by low.

4, the Taxi Top Light screen brightness and viewing angle: indoor full color of the brightness to 800cd / m2 above the outdoor full color of the brightness to 1500cd / m2 above, in order to ensure the normal work of the display, otherwise because the brightness is too low And can not see the displayed image. The brightness of the size of the LED die is mainly determined by the good or bad. The size of the viewing angle directly determines the number of display screen audience, so the bigger the better. The viewing angle is mainly determined by the way the die is encapsulated.

5, the Taxi Top Light screen with or without mosaic, dead phenomenon: mosaic refers to the display appears on the bright or often black small square box, both module necrosis, the main reason for the display used by the connector quality But off. Dead point is the display screen appears on the bright or often black single point, the number of dead spots mainly by the die is good or bad to decide.

6, the roof of the Taxi Top Light reduction: color reproduction refers to the display on the color of the reduction, both the display screen to play with the color of the source to maintain a high degree of consistency, so as to ensure the image of the realism.