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參數(shù)資料
| 型號： | HD66728 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器) |
| 中文描述： | 112 × 80點圖形LCD控制器/驅(qū)動器（112 × 80點圖形液晶顯示控制器） |
| 文件頁數(shù)： | 97/138頁 |
| 文件大小： | 2158K |
| 代理商： | HD66728 |
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HD66728
97
Vertical Smooth Scroll Display
The HD66728 can scroll character and graphics display vertically in units of raster-rows. This is achieved
by writing display data into a one-line area that is not being used for display. In other words, one line can
be used to achieve continuous smooth vertical scroll even in a 9-line or less display. Here, after the 10th
line is displayed, the first line is displayed again. When the 10th line is fully displayed, all one-line display
data must be rewritten immediately after scrolling because there is no non-displayed area. Additionally,
when display areas of a graphics icon such as a pictogram or a menu bar are partially fixed-displayed, the
remaining areas can be displayed. For details, see the Partial Smooth Scroll Display Function section.
Specifically, this function is controlled by incrementing or decrementing the value in the display-start line
bits (SL2 to SL0) and display-start raster-row bits (SN3 to SN0) by 1. For example, to smoothly scroll up,
first set line bits SN3 to SN0 to 0000, and increment SL2 to SL0 by 1 from 000 to 111 to scroll seven
raster-rows. Then increment line bits SN3 to SN0 to 0001, and again increment SL2 to SL0 by 1 from 000
to 111. If the vertical double-height display is at the top of the line, scrolling is done by each two raster-
row.
When the response speed of the liquid crystal is low or when high-speed scrolling is needed, two- to four-
raster-row scrolling is recommended.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66730 | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| HD66731 | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| HD66731A00TB0L | 122 x 32 pixel format, Compact LCD size |
| HD66731A00TA0L | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HD66731A01TA0L | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66729 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66730 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HD66730A00FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HD66730A01FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HD66731 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
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