Basic Concepts
Key Graphics Definitions
Refresh Rate - The rate at which the screen is "repainted". Generally 50-60 MHz is acceptable.
Frame Buffer - The place in memory where pixel data for the frame currently being displayed and subsequent frames are stored.
Color Depth - Expressed in bits per pixel (bpp). This is the number of possible colors that a pixel can represent.
BLIT - Stands for bit block transfer is a data operation commonly used in computer graphics in which several bitmaps are combined into one using a boolean function.
Sprites - Two dimensional bitmap that is integrated into a larger scene
Graphics Sub-system
The basic components required to build a Graphics Sub-system are :
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Display panel
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Frame Buffer
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Display Controller
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Microcontroller
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Software
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Touch (Optional)
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