Display backlight structure capable of reducing bright light harm

• Main Authors: CHEN ZHICONG, LIN QUNTING, LYU XIONG, DONG HENG
• Format: Patent
• Language: English
• Published: 11.03.2015
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS; LIGHTING; MECHANICAL ENGINEERING; NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

The invention provides a display backlight structure capable of reducing blue light harm, the display backlight structure including a light guide plate, a reflector plate, a lower diffusion plate, an upper diffusion plate, a brightness enhancement plate, a filer film and positioning holes, wherein the reflector plate is positioned below the light guide plate; the lower diffusion plate, the upper diffusion plate and the brightness enhancement plate are sequentially arranged on the light guide plate; the filter film is positioned on the incident plane of the light guide plate; the filter film filters light waves with wave lengths from 380 microns to 420 microns; the positioning holes are positioned in the invisible ranges of the light guide plate, the reflector plate, the lower diffusion plate, the upper diffusion plate, the brightness enhancement plate and the filer film. The display backlight structure provided by the invention can be applied to various display devices. The display backlight structure is a display product which is low in cost and efficient and can reduce shortwave blue light, and can achieve the purpose of protecting the vision and health of users.