【R&D Department of Blaze Display】128x64 LCD implies 128 columns and 64 rows. In total there are (128x64 = 1024) pixels. 128x64 LCD is divided equally into two halves. Each half is controlled by a separate controller and consists of 8 pages. In above diagram, CS stands for Controller Select. Each page consists of 8 rows and 64 columns. So two horizontal pages make 128 (64x2) columns, and 8 vertical pages make 64 rows (8x8).
Various graphical LCDs are available in the market with different sizes. Here JHD12864E Graphical LCD has been explained. This LCD has a display format of 128x64 dots and has yellow-green colour backlight. Each LCD needs a controller to execute its internal operations. This LCD uses two KS0108 controllers.
The 128x64 LCD is divided into two equal halves with each half being controlled by a separate KS0108 controller. Such LCDs (using KS0108 controller) involve paging scheme, i.e., whole LCD is divided equally into pages. The paging scheme of the graphical LCD can be easily understood from the following table.
1. 3.3V or 5V operating voltage, adjustable contrast;
2. Type: Graphic;
3. Display format: 128 x 64 dots;
4. Built-in controller: AIP31108 / SPL0108 (or equivalent);
5. Duty cycle: 1/64;
6. N.V. built-in.