Illuminating device, backlight module with the illuminating device, lamp box module or digital electronic device and manufacturing method thereof

Abstract

The invention provides a light source light emitting device, a direct-type backlight module with the light-emitting device, a light box module, a planar light radiator, an LCD picture screen, a digital electronic device and a manufacturing method of the light-emitting device and the related products. The light emitting device comprises a plurality of long strip-shaped first light guide structures, a second light guide structure and a light source, the second light guide structure is adjacently spliced with two first light guide structures for receiving and containing the light source in a space which is combined by the two adjacent first light guide structures and the second light guide structure, wherein, patterned reflection layers are formed on the surfaces of the first light guide structures and the second light guide structure which are positioned at the same side of the light source and close to the periphery and the bottom part of the light source, at least optical reflection structures are additionally covered on the patterned reflection layers which are positioned at the bottom surfaces of the first light guide structures and the second light guide structure, thereby allowing light rays emitted by the light source to pass through the patterned reflection layers and the optical reflection structures for diffusion and reflection, improving the light uniformity, promoting the color mixing and reducing the occurrence of a dark band.

Description

technical field [0001] The invention relates to a light source light emitting device, an array light emitting device, a direct backlight module with a light emitting device, a planar light radiator (Planar Light Radiator), a liquid crystal image display screen (LCD PictureScreen), and digital electronic equipment with a light emitting device. And the manufacture method of above-mentioned each device. In particular, it involves the combination of a light guide plate, a reflective layer and a light emitting diode (Light Emitting Diodes, LED) strip or point light source as a backlight light source lighting device, and a direct-type backlight module that improves the light source scattering uniformity and RGB color mixing effect. A digital electronic device for a type backlight module and a manufacturing method thereof. Background technique [0002] As we all know, if the liquid crystal display (Liquid Crystal Display, LCD) picture is to be clear, since the liquid crystal itsel...

AI Technical Summary

Problems solved by technology

However, the cost of this method is very expensive, and if the uniform distribution of light is to be maintained, a considerable distance must be kept between the red, blue, green and yellow LEDs, which will also increase the structural depth of the light-emitting device and weaken the light emission. Utilization

In this way, it will not only be unfavorable for RBG color mixing when applied to large-size liquid crystal displays, but also fail to meet product expectations in terms of luminance and light uniformity.

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