Assembly device for a sidelight light source module and liquid crystal panel

Abstract

An assembly device for a sidelight light source module and liquid crystal panel, comprising: a liquid crystal panel; a light guide panel; a light reflecting plate; a light source module installed at a side of the light guide panel; wherein the light source module comprises: a circuit board, on top of is soldered blue light chips and red light chips; a luminescence fluorescent layer positioned on top of the blue light chips and the red light chips. Mixed light consisting of the excited light, the blue light and the red light is transmitted out the fluorescent layer and forms a white light that passes through the light guide panel, the light reflecting plate, and is finally transmitted out the liquid crystal panel.

Description

BACKGROUND OF THE INVENTION [0001] (a) Field of the Invention [0002] The present invention relates to an assembly device for a sidelight light source module and liquid crystal panel, which particularly provides a white light backlight source having superior color rendering for a liquid crystal panel. [0003] (b) Description of the Prior Art [0004] Conventional structures for assembly of a liquid crystal panel and backlight source module include Taiwan Utility Model Reg. No. M245448, entitled “Light source module for a liquid crystal display”, which uses a light source structured from an ultraviolet (UV) LED and red, blue and green (R, B, G) fluorescent substances. However, a shortcoming of such a structure is that the ultraviolet light damages current, extensively used epoxy resin structures, causing a problem of final white light attenuation, thereby resulting in a relatively dull white light. More particularly, a covering layer used in the above cited patent is compounded from red,...

AI Technical Summary

Benefits of technology

[0009] A primary objective of the present invention is to provide an assembly device for a sidelight light source module and liquid crystal panel that enables easy control of and achieves superior color rendering and uniformity of a transmitted backlight white light.

[0010] Another objective of the present invention is to provide the assembly device for a sidelight light source module and liquid crystal panel with a fluorescent layer used by a backlight source module that is fabricated from induced luminescent material, which enables easy control of the excited light wavelengths, thereby achieving easy control of the color rendering and uniformity of the backlight white light source.

[0011] Yet another objective of the present invention is to provide the assembly device for a sidelight light source module and liquid crystal panel with an easily replaceable light diffuser plate coated with the fluorescent layer, thereby providing renewable functionality.

Problems solved by technology

However, a shortcoming of such a structure is that the ultraviolet light damages current, extensively used epoxy resin structures, causing a problem of final white light attenuation, thereby resulting in a relatively dull white light.

More particularly, a covering layer used in the above cited patent is compounded from red, green and blue color fluorescent substances, which causes another shortcoming in that the ratio of the three colors and the manufacturing process are difficult to control.

However, ratio of the red fluorescent powder and the green fluorescent powder and the manufacturing process are difficult to control, thereby making uniformity of the mixed light (that is, white light) also difficult to control, thereby finally producing poor color rendering of the white light displayed by the liquid crystal panel.

However, the light source lacks a red light spectrum portion, which results in poor color rendering and uniformity of the mixed white light (that is, mixed light) emitted by the fluorescent screen, and is seen by the human eye as impure white light.

However, embodiments of the cited patent are limited to new designs of white light light-emitting diodes, and with regard to application in devices assembled with a liquid crystal panel and backlight module, the cited patent has no extended assembled embodiments.

Images