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Transmission-type backlight source LED light box dodging device and light box

A technology of LED light box and uniform light device, which is applied in the direction of light source, electric light source, display device, etc., can solve the problems that cannot be directly applied, eliminate dark areas of the light box screen, etc., and achieve the effect of eliminating dark areas and improving uniformity

Inactive Publication Date: 2010-10-06
RAYS LIGHTING SYST SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above improvements have played a certain role in improving the display effect of the light box, but for the light box with LED as the light source, because the LED light source is different from the light source of the lamp tube, the above improvement scheme cannot be directly applied to the light box with LED as the light source to eliminate the light box screen. dark area

Method used

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  • Transmission-type backlight source LED light box dodging device and light box
  • Transmission-type backlight source LED light box dodging device and light box
  • Transmission-type backlight source LED light box dodging device and light box

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Embodiment Construction

[0021] The present invention will be described in detail below with reference to the accompanying drawings.

[0022] The gist of the present invention is to provide a transmissive backlight LED light box homogenization device, the light box includes a picture support plate arranged in the display direction of the light box, the backlight adopts several LEDs arranged in the light box, and the light source LEDs are arranged There is a light reflecting device, and the uniform light device is arranged in the display direction of the light box. The light uniform device is provided with a light-shielding structure corresponding to the position of the LED, so as to block the light directly emitted by the LED and guide it to the surroundings.

[0023] Such as figure 1 Shown, is an embodiment of the uniform light device of the present invention, and in this example, LED 2 arrays are arranged, and the uniform light device is the grid plate 1 of warp and weft weaving, is arranged on the ...

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PUM

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Abstract

The invention provides a transmission-type backlight source LED light box dodging device. The light box comprises a picture supporting plate, a plurality of LEDs and reflectors, wherein the picture supporting plate is arranged in the display direction of the light box; the LEDs are arranged in the light box; the reflectors are arranged among the LEDs; the dodging device is arranged in the display direction of the light box; and the dodging device is provided with a dodging structure in the position corresponding to the LEDs, and used for shielding rays emitted by the LEDs and dredging the rays to the surroundings. The invention also provides a light box with the dodging device. The dodging device can eliminate dark areas on the picture of the light box, and enhance the lighting uniformity on the display surface of the light box, so that rays are uniformly and softly irradiated on the picture supporting plate.

Description

technical field [0001] The invention relates to a uniform light device for lighting equipment, in particular to a transmission type backlight source LED lamp box uniform light device; also relates to a light box with the above light uniform device. Background technique [0002] The light source of the traditional advertising light box mostly adopts several light tubes arranged in parallel. As an improvement to the traditional light box, LEDs are now used as the backlight of the transmissive light box. However, because there is a certain distance between the LED light sources, when in use, the light box picture will also have discontinuous or uneven light, that is, there are dark areas between the LED light sources, which will affect the display effect of the light box picture . [0003] For the light box using the light tube as the light source, in order to eliminate the rib pattern phenomenon, the applicant has made various improvements to the traditional light box, includ...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V11/00F21V5/00F21V5/04G09F13/04F21Y101/02F21W131/40
CPCG09F13/04G09F2013/222G09F13/22
Inventor 王默文
Owner RAYS LIGHTING SYST SHANGHAI
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