參數(shù)資料
型號(hào)： HD66732
廠商： Hitachi,Ltd.
英文描述： Graphics Liquid Crystal Display Controller/Driver Supporting JIS Level-1 and Level-2 Kanji ROM(圖形LCD控制器/驅(qū)動(dòng)器)
中文描述： 圖形液晶顯示控制器/驅(qū)動(dòng)器支持日標(biāo)級(jí)- 1和第2級(jí)漢字光盤（圖形液晶顯示控制器/驅(qū)動(dòng)器）
文件頁數(shù)： 84/133頁
文件大小： 2608K
代理商： HD66732
HD66732
84
LCD Drive Bias Selector
An optimum liquid crystal display bias value can be selected using BS2-0 bits, according to the liquid
crystal drive duty ratio setting (NL2-0 bits). Liquid crystal display drive duty ratio and bias value can be
displayed while switching software applications to match the LCD panel display status. The optimum bias
value calculated using the following expression is an ideal value where the optimum contrast is obtained.
Driving by using a lower value than the optimum bias value provides lower contrast and lower liquid
crystal display voltage (potential difference between V1 and GND). When the liquid crystal display
voltage is insufficient even if a quadruple booster is used or output voltage is lowered because the battery
life has been reached, the display can be made easier to see by lowering the liquid crystal bias.
The liquid crystal display can be adjusted by using the contrast adjustment register (CT4-0 bits) and
selecting the booster output level (BT1/0 bits).
Optimum bias value for 1/N duty ratio drive voltage =
1
N + 1
Table 48
Optimum Drive Bias Values
LCD drive duty
ratio
(NL2-0 set value)
1/54 duty
ratio
(NL2-0 = 100)
1/41 duty
ratio
(NL2-0 = 011)
1/28 duty
ratio
(NL2-0 = 010)
1/15 duty
ratio
(NL2-0 = 001)
1/2 duty ratio
(NL2-0 = 000)
Optimum drive
bias value
(BS2-0 set value)
1/8 bias
(BS2-0 = 000)
1/7 bias
(BS2-0 = 001)
1/6 bias
(BS2-0 = 010)
1/4.5 bias
(BS2-0 = 101)
1/2 bias
(BS2-0 = 111)
相關(guān)PDF資料
PDF描述
HD66740TB0 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30MIN
HD66740WTB0 112 x 80-dot Graphics LCD Controller/Driver
HD66751 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
HD66750TB0 122 x 32 pixel format, Compact LCD size
HD66750 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66735 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HD66735 Procedure for setting Standby/Sleep/Display off mode. Technical Update/Device
HD66740 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD66740TB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HD66740WTB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HD66741 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*