- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371794 > HD66781 (Renesas Technology Corp.) 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM PDF資料下載
參數(shù)資料
| 型號(hào)： | HD66781 |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM |
| 中文描述： | 720通道源驅(qū)動(dòng)的非晶硅薄膜晶體管/低溫多晶硅TFT面板與262,144色顯示RAM |
| 文件頁(yè)數(shù)： | 180/196頁(yè) |
| 文件大?。?/td> | 2416K |
| 代理商： | HD66781 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)當(dāng)前第180頁(yè)第181頁(yè)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)
HD66781
Preliminary
Rev.0.5, July.31.2003, page 180 of 196
Power-saving drive settings
The HD66781 incorporates various settings for lower power consumption display. The low power
consumption and the quality of display are in trade-off, and the power-saving effect may vary depending on
the characteristics of a panel. Make an appropriate setting among the settings listed below taking the trade-
off into consideration.
1.
8-color display mode (COL)
When this mode is selected (COL [1:0] = 2’h2), voltage generation for grayscale levels other than V0 and
V63 levels is halted. In this mode, only 8 colors are available for display for saving power.
2.
Low power consumption display mode (COL, FRC)
Setting COL[1:0] to 2’h1 halts 32 amplifiers among V0 ~ V63 grayscale amplifiers to display with low
power consumption. In combination with the FRC mode setting, it is possible to realize display with low
power consumption in abundant colors.
In this mode, 250,047 colors are available with 18-bit, 16-bit x2, 9-bit x2, 8-bit x3 (RGB 6 bits each)
interfaces and 64,512 colors are available with 16-bit x1, 8-bit x2 interfaces and SPI (R, B: 5 bits, G: 6 bits).
Using this mode with short screen refreshing cycle may affect the quality of display. Consider the trade-off
between the display quality and power-saving effects before use. See the “Low power consumption display
mode” (p.169) for details.
3.
Partial display (OSD)
The partial display is made with OSD and base image display off setting (BASEE = 0). Display operation
is limited to the partial display area to save power. Power saving effects will increase as the number of
partial display lines decreases. Also, see “Partial Display Function”(p.139) for details.
4.
Non-lit drive setting
The non-lit drive setting is available for partial display and allows specifying the kind of source outputs in
the non-lit drive area with PTS bits. Also, in the non-lit drive area, grayscale generation amplifier is halted
and step-up clock cycle is slowed down to half.
PTG bits can specify the scan mode of gate bus lines in the non-lit drive area. In the interval gate scan
mode, gate bus lines are scanned by the frame cycle specified by ISC bits to hold power consumption
required for scanning gate bus lines to minimum. The longer scan cycle may affect the quality of display.
Make an appropriate setting by taking trade-off between power-saving effects and display quality.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66787 | 528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat |
| HD66840 | Peripheral IC |
| HD66840F25 | LCD Controller |
| HD66840F30 | LCD Controller |
| HD66841FP | LCD Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66787 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat |
| HD66789 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit |
| HD667A66R | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD667B66R | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD66840 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。