| 摘要 |
A liquid crystal display device comprises a substrate (1) a first metal layer (2a,b,c) formed on said substrate (1), and a second metal layer (3a,b,c) formed on said first metal layer (2a,b,c), the first and second metal layers having substantially the same coefficient of thermal expansion, and the first layer including a material for suppressing diffusion in said first layer during changes in temperature, due to the differences in the coefficients of thermal expansion of the first metal layer and said substrate, so that the formation of hillocks tends to be reduced. The first metal layer preferably comprises an alloy of aluminium and a diffusion-suppressing refractory metal such as Ta, Ti, Mo, W, Nb, Zr or V. The second metal layer may comprise aluminium or an aluminium alloy. |
