Backlight adjustable light display device

A display device and adjustable technology, which is applied in the direction of display devices, lighting devices, lamp circuit layout, etc., can solve problems such as short life, unbalanced color temperature, and out-of-sync light attenuation, and achieve improved service life, uniform brightness and color temperature, Solve the effect of light attenuation out of sync

Inactive Publication Date: 2015-12-09
闫新 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional light sources or LED light sources as backlights have problems such as short lifespan, out-of-sync light attenuation, uneven brightness and uneven color temperature after new installations or repairs and replacements.

Method used

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  • Backlight adjustable light display device
  • Backlight adjustable light display device
  • Backlight adjustable light display device

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] Such as figure 1 , 2 , 3 shows: taking the light box as an example, the light box includes a backlight panel 6 at the back, a light-transmitting panel 5 at the front, an upper side panel 1, a lower side panel 3, a left side panel 4 and a right side panel 2. The box body with three-dimensional structure is arranged with a plurality of light sources 7 connected to the electric control device on the backlight plate 6 at the back of the box body. The light sources 7 are arranged in multiple groups of branches, and each group of branches has at least two light sources and one The regulating modules 8 are connected in series with each other, and the branch circuits of each group are connected in parallel with each other and then connected with the electric control device. The adjustment module 8 is an adjustable resistor or a chip to adjust the branch current or PWM; the light source 7 is an LED light source, and other traditional light sources can also be selected.

[0015...

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PUM

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Abstract

The invention discloses a backlight adjustable light display device, which comprises a box body, wherein a plurality of light sources connected to an electric control device are distributed on a backlight board at the back of the box body; a light-transmitting panel is arranged in the front of the box body; the light sources include multiple groups of branches which are distributed orderly; each branch is formed by connecting at least two light sources and an adjusting module in series; and the various groups of the branches are mutually connected in parallel and are connected to the electric control device, wherein the adjusting modules are adjustable resistors or capable of adjusting current or PWM (pulse width modulation) of the branches by virtue of chips; and the light sources are LED light sources. Compared with the prior art, the light display device disclosed by the invention can improve the service life of a backlight, and can synchronize luminance attenuation of the various light sources by virtue of the adjusting modules added in the branches, so that the problem of the prior art which is asynchronous in luminance attenuation is solved; by regulating the current, voltage or WPM of light-emitting elements in the branches, brightness and color temperature are uniform and change in darkness is avoided after newly installing and changing the light sources. The light display device is applicable to all light box advertising and soft membrane ceiling box bodies.

Description

technical field [0001] The invention relates to a lighting display device, in particular to a backlight adjustable lighting display device. Background technique [0002] At present, the devices that use light to display or release information mainly include various light boxes installed indoors, outdoors or on various buildings; in order to have a better decorative effect indoors, some have installed soft film ceiling structures. Existing lighting for display or decoration often chooses traditional lamps or LED light sources, that is, a plurality of traditional lamps or LED light-emitting elements connected with electronic control devices are arranged on the backlight board of the light box or soft film ceiling to form a backlight The light source illuminates the light-transmitting panel on the front side through the backlight, so that the published information or decorative effect can be displayed to the audience. Traditional light sources or LED light sources as backlight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F13/10H05B37/02
CPCG09F13/04G09F13/0418H05B47/10
Inventor 闫新杜钦然
Owner 闫新
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