The implication of thermal compaction on hot forming technology for AMLCD glass

Silicate glass is the primary candidate for AMLCD substrates. Stringent pristine surface requirement has limited its commercial production to within a few companies, each of which uses different hot forming technique. Thermal compaction and structure relaxation studies revealed different thermal history experienced by the substrate during manufacturing. Tests shown higher expansion OA2 has less compaction than 1737 indicating a much lower sheet forming temperature than 1737. While newer OA10 and 1737 are practically inter-changeable with one another, having many similarities in their thermal mechanical properties. Data supports the possibility of inter-changing different brand glasses for either color filter or TFT.