BOROSILICATE GLASS, LIGHT GUIDE PLATE COMPRISING THE SAME AND FABRICATING METHODS THEREOF

• Main Authors: CHOI, Byung-Kook, HWANG, Du-Sun, SHIM, Hyun-Jin, CHOI, Jun-Bo, LEE, Chang-Hee
• Format: Patent
• Language: English; French; German
• Published: 18.08.2021
• Subjects: BLASTING; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GLASS; HEATING; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIGHTING; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; MECHANICAL ENGINEERING; METALLURGY; MINERAL OR SLAG WOOL; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; WEAPONS

Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75 ~ 85 wt% of SiO 2 , 5 ˆ¼ 15 wt% of B 2 O 3 , 0 ˆ¼ 5 wt% of Al 2 O 3 , R 2 O 1 ˆ¼ 7 wt% where R is at least one of Li, Na and K, and < 0.005 wt% of Fe 2 O 3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.