电容屏(一体化触屏)制程介绍.ppt

Michael Mo / PD1 2011.01.04 OGS One glass TP Sensor 外觀 Old design (6 PEP) / New design (5 PEP) OC0 BM OC0 overlap BM 50um ITO Metal Metal overlap with ITO 40um ` ITO OC1 BM Metal Gap between BMITO 50um Metal width 10um Metal overlap with ITO 80um 1. Cando proposed to change the original 6 peps design to a new 5 peps design for some reason. 2. The new 5 peps design has few advantages, as cost down, lead time reduced and etc. 3. Although there also comes with drawback of visual consideration, finally we got solutions by function film attached. Metal overall from BM 130um OC2 OC2 One glass solution – Original design with OC0 process Process sequence : BM, black matrix (black matrix frame) ? OC0, over coat layer0 (isolated BM and ITO) ? ITO, (patterned sensor) ? BM OC0 BM OC0 BM OC0 BM ITO One glass solution – Original design with OC0 process Process sequence : OC1, over coat layer1 (isolated ITO metal) ? Metal, metal bridge (sensor connection) ? OC2, over coat layer2 (Protection coating) ? OC0 BM ITO Metal OC2 OC0 BM ITO Metal OC0 BM ITO Process sequence : BM, black matrix (black matrix frame) ? ITO, (patterned sensor) ? OC1, over coat layer1 (isolated ITO metal) ? ITO BM BM OC1 BM ITO One glass solution – New design remove OC0 process ` OC1 BM Metal ITO ` OC1 BM Metal ITO Metal, metal bridge (sensor connection) ? OC2, over coat layer2 (Protection coating) ? OC2 One glass solution – New design remove OC0 process Summary : comparison between these two design OC0 BM OC0 overlap BM 50um ITO Metal Metal overlap with ITO 40um ` ITO OC1 BM Metal Gap between BMITO 50um Metal width 10um Advantage Cost down Tact time saving Yield improving Draw back Metal can’t be covered by BM which might impact to visual effect OC2 OC2 Metal overlap with ITO 80um Metal overall from BM 130um before after 1608GAA與1609GAA ITO 前後版差異 : Sensor ITO往上shift 50um 1608GAA與1609GAA ITO 前後版差異 1608GAA 1609GAA 16