Reflektive oder transflektive Flüssigkristallanzeige und Herstellungsverfahren dafür

摘要

On a first substrate (100), a TFT (110) which is a switching element is provided for each pixel, and above an insulating film (38) covering this TFT (110), a reflective layer (44) which is insulated from the TFT and which reflects light entering through a second substrate (200) and transmitting through a second electrode (250) made of ITO is formed. Further, a first electrode (50) having a work function similar to that of the second electrode (250) and made of a transparent conductive material such as ITO or IZO is formed closer to a liquid crystal layer (300) than the reflective layer (44), and this first electrode (50) is connected with the TFT (110). With this configuration, the liquid crystal layer can be symmetrically AC driven without flicker by the first and second electrodes. A reliable connection between the first electrode (50) and the TFT (110) is provided through a connection metal layer (42) made of a refractory metal, such as Mo, Ti or Cr. The electrode configuration may also be applied to a reflective electroluminescent (EL) display device.