参数资料
型号: AC164127-7
厂商: Microchip Technology
文件页数: 3/34页
文件大小: 0K
描述: BOARD DISPLAY CTLR PLUS S1D13517
特色产品: AC164127-7 Graphics Controller
标准包装: 1
系列: PICtail™ Plus
主要目的: 显示器,LCD 控制器
已用 IC / 零件: S1D13517
主要属性: 与 PIC32 入门套件和 Explorer 16 开发板一起使用
已供物品:
AN1368
BASIC DISPLAY TERMINOLOGY
A screen is made up of discrete elements, known as
pixels. Every pixel can show one point of color and
each pixel is composed of three points: Red, Green
and Blue. The colors are arranged next to each other
on a color screen, one point of intensity on a grayscale
screen or one point that can be set to on/off on a
monochrome screen. The number of such pixels in
horizontal and vertical directions is called the screen
resolution. For example, a resolution of 320x240
means there are 320 pixels horizontally (number of
columns) and 240 pixels vertically (number of rows).
Standard resolutions are given names, such as QCIF
(176x144), CIF (352x288),QVGA (320x240), WQVGA
(480x272), VGA (640x480) and WVGA (800x480), etc.
While mentioning the resolution, it is always better to
refer to the numbers instead of the names.
A screen can be in Landscape mode (width > height) or
in Portrait mode (height > width). The ratio of the
display screen’s visible width to its visible height is
called the ‘Aspect Ratio’. The most commonly used
aspect ratio is 4:3. The diagonal length of the display
screen is termed as the length of the display.
For example, a display of 3.5'' means that the diagonal
length of the display is 3.5'', as shown in Figure 5 .
FIGURE 5:
A 3.5 '' QVGA DISPLAY IN LANDSCAPE MODE
320 Pixels
3.5 ''
240 Pixels
? 2011 Microchip Technology Inc.
DS01368A-page 3
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