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led display device

A technology of LED display screen and display device, applied in the direction of identification devices, instruments, etc., can solve problems such as reducing the visual effect of LED, and achieve the effect of weakening lamp surface defects, improving the uniformity of color and brightness, and improving the uniformity.

Active Publication Date: 2016-11-30
LEYARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above situations will reduce the visual effect of LED

Method used

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] like figure 1 As shown, the LED display device of this embodiment includes an LED display screen and a protective screen 20 . The LED display screen includes a plurality of LED display units, the LED display unit includes a substrate 10 and LED pixel lights arranged on the substrate 10, the LED pixel lights are located between the protective screen 20 and the substrate 10, the protective screen 20 includes a color layer, and the color layer The color is gray, and the light transmittance of the protective screen 20 is greater than 45%. Of course, the LED display screen can also only include one LED display unit. In addition, the color of the color layer can also be black.

[0021] App...

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Abstract

The invention provides an LED display device, comprising: an LED display screen comprising at least one LED display unit, the LED display unit comprising a substrate (10) and LED pixel lights arranged on the substrate (10); a protective screen (20), The LED pixel lights are located between the protective screen (20) and the substrate (10), the protective screen (20) includes a color layer, the color of the color layer is gray or black, and the light transmittance of the protective screen (20) is greater than 45%. The LED display device of the present invention weakens lamp surface defects and improves uniformity of color and brightness.

Description

technical field [0001] The present invention relates to the technical field of LED display, in particular to an LED display device. Background technique [0002] At present, the LED display screen is mainly composed of a plurality of LED display units connected to each other. The LED display unit is mainly composed of a PCB board and a plurality of LED pixel lights welded on the PCB board. If the LED pixel lights are tilted, then each LED pixel The light-emitting surface on the top of the lamp will not be even. When the LED pixel light is not lit (black screen), the LED display will have light surface defects. In addition, when the LED pixel light is lit, it will affect the display effect of the image, the color and The brightness is not uniform, and even a fish-scale image will appear. Moreover, the protective screen in front of the LED display is highly reflective, making it impossible for viewers in some positions to see the picture clearly. When a plurality of LED displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33
Inventor 刘学建张龙虎
Owner LEYARD