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参数资料
| 型号： | ENH057Q1-450 |
| 英文描述： | Low Noise LDO with Low IQ, High PSRR; Temperature Range: -40°C to 85°C; Package: 6-uTDFN T&R |
| 中文描述： | 5.7inch的QVGA |
| 文件页数： | 14/21页 |
| 文件大小： | 322K |
| 代理商： | ENH057Q1-450 |
Original specifications created by Sharp.
21
Panelview (503) 690-2460 www.whiteedc.com
Panelview is a subsidiary of White Electronic Designs Corporation
ENH050Q1-320/450/600
Panelview
Enhancing the Vision
ADJUSTING METHOD OF OPTIMUM
COMMON ELECTRODE DC BIAS
VOLTAGE
To obtain optimum DC bias voltage of common
electrode driving signaI(VCDC). Photo-electric devices are
very effective, and the accuracy is within 0.1V. (In visual
examination method, the accuracy is about 0.5V
because of the difference among individuals.)
To gain optimum common electrode DC bias voltage,
there is the following method which uses the photo-
electric device.
(Measurement of flicker)
DC bias voltage is adjusted so as to minimize NTSC:
60Hz (30Hz) PAL: 50Hz (25Hz) flicker.
Output voltage
VCDC
LCD
Oscilloscope
(X-Y recorder)
Photo-electric
device
Fig. A Measurement system
Photo-electric output voltage is measured by an
oscilloscope at a system shown in Fig.A.
DC bias voltage must be adjusted so as to minimize
the NTSC:60Hz(30Hz) PAL:50Hz(25Hz) flicker with DC
bias voltage changing slowly. (Fig. B)
DC bias: Optimum
DC bias: Optimum + 1V
Fig. B Waveforms of flicker
Fig. 9 Optical characteristics
Brightness: Less than 5000cd/m
2
Wave length: To be cut less than 400nm
Normal line
Photodetector
(including luminosity factor)
Polarizing filter
Frame
Backlight
(Plane source)
LCD panel
θ
相关PDF资料 |
PDF描述 |
|---|---|
| ENH057Q1-600 | Low Noise LDO with Low IQ, High PSRR; Temperature Range: -40°C to 85°C; Package: 6-uTDFN T&R |
| ENH064V1-300 | Low Noise LDO with Low IQ, High PSRR; Temperature Range: -40°C to 85°C; Package: 6-uTDFN T&R |
| ENH064V1-450 | Low Noise LDO with Low IQ, High PSRR; Temperature Range: -40°C to 85°C; Package: 6-uTDFN T&R |
| ENH064V1-600 | 6.4inch VGA |
| ENH064V1-900 | LDO with Low ISUPPLY, High PSRR; Temperature Range: -40°C to 85°C; Package: 8-DFN T&R |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ENH057Q1-600 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:5.7inch QVGA |
| ENH057Q1-XXX | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:Color TFT-LCD Module Features GENERAL DESCRIPTION |
| ENH-0630 | 制造商:All American Ass'Y 功能描述: |
| ENH064V1-300 | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:Color TFT-LCD Module Features |
| ENH064V1-450 | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:Color TFT-LCD Module Features |
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