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PMIC: CP240x LCD Driver Family Slide 6
Indium Tin Oxide (ITO) is a transparent material that is also conductive. This material is used to create the electrodes to stimulate the liquid crystal material. The ITO is put on one layer of glass in any shape required by the application. Another layer of glass will have ITO used for the common reference. For example, in the picture provided each segment is a separate application of ITO. All of the segments combined make up the basis for the alphanumeric characters and how the segments are driven determines which letter or number is displayed. Some common segment shapes that might exist are an antenna found on a cell phone, or the strength indicator bars. A battery symbol is also common on many LCDs.
PTM Published on: 2011-05-13