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參數(shù)資料
| 型號(hào)： | HD66760 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors |
| 中文描述： | 104 × 80點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器的256色 |
| 文件頁(yè)數(shù)： | 69/105頁(yè) |
| 文件大?。?/td> | 653K |
| 代理商： | HD66760 |
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HD66760
69
n-raster-row Reversed AC Drive
The HD66760 supports not only the LCD reversed AC drive in a one-frame unit (B-pattern waveform) but
also the n-raster-row reversed AC drive which alternates in an n-raster-row unit from one to 32 raster-rows
(C-pattern waveform). When a problem affecting display quality occurs, such as crosstalk at high-duty
driving of more than 1/64 duty, the n-raster-row reversed AC drive (C-pattern waveform) can improve the
quality.
Determine the number of raster-rows n (NW bit set value + 1) for alternating after confirmation of the display
quality with the actual LCD panel. However, if the number of AC raster-rows is reduced, the LCD alternating
frequency becomes high. Because of this, the charge or discharge current is increased in the LCD cells.
1 2 3
4 5 6
7 8 9 10 11 12 13
79 80 1
2 3 4
5 6 7
8 9 10 11 12 13
79 80 1
2 3
B-pattern
waveform drive
1/80 duty
1 frame
1 frame
C-pattern
waveform drive
1/80 duty
11-raster-row
reversal
Without EORs
C-pattern
waveform drive
1/80 duty
11-raster-row
reversal
With EORs
Note: Specify the number of AC drive raster-rows and the necessity of EOR so that the DC bias is not generated for
the liquid crystal.
Figure 47 Example of an AC Signal under n-raster-row Reversed AC Drive
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| HD66766R | 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD667A66R | 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD667B66R | 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD66780FH | LAMPS, STACKABLE INDICATOR |
| HD66780FS | Dot Matrix Liquid Crystal Display Controller and Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66765 | 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:396-channel Segment Driver with Internal RAM for 4096-color Displays |
| HD66765TB0 | 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:396-channel Segment Driver with Internal RAM for 4096-color Displays |
| HD66766 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Current cosumption is increased for stabilizing internal amplifier. Technical Update/Device |
| HD66766R | 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD66773R | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:262,144-color, 132 x 176-dot Graphics Controller Driver for TFT LCD panels |
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