Established in 2003.
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Established in 2003. |
About the selection of LCD
You should check the following items, in order to choose LCD.| * Display type |
Type Explanation TN Still picture display (Low Price) STN Still picture display (This is contrast higher than TN.) DSTN Graphics or a movie display TFT Graphics or a movie display (This has reaction velocity quicker than DSTN.)
| * Inch size |
* This is the size of only a display part. Since actual size has frame width, they differ slightly.
Display Size
(inch)4:3 16:9 width(cm) height(cm) width(cm) height(cm) 2.0 4.06 3.05 4.43 2.49 2.5 5.08 3.81 5.53 3.11 3.0 6.10 4.57 6.64 3.74 3.5 7.11 5.33 7.75 4.36 4.0 8.13 6.10 8.86 4.98 4.3 8.74 6.55 9.52 5.35 5.0 10.16 7.62 11.07 6.23 6.2 12.60 9.45 13.73 7.72 6.4 13.00 9.75 14.17 7.97 7.0 14.22 10.67 15.50 8.72 8.4 17.07 12.80 18.60 10.46 10.4 21.13 15.85 23.02 12.95 12.1 24.59 18.44 16.79 15.07 15 30.48 22.86 33.21 18.68 17 34.54 25.91 37.63 21.17 19 38.61 28.96 42.06 23.66
| * Display resolution(number of pixels) |
Resolution Number of pixels(colum:line) Aspect ratio(colum:line) QCIF 176 X 144 11 : 9 CIF 352 X 288 11 : 9 QVGA 320 X 240 4 : 3 VGA 640 X 480 4 : 3 WIDE VGA 800 X 480 5 : 3 SVGA 800 X 600 4 : 3 XGA 1024 X 768 4 : 3 SXGA 1280 X 1024 4 : 3 UXGA 1600 X 1200 4 : 3
| * Interface(I/F) |
* A:Many / B:General / C:Few
I/F Resolution Explanation small medium large Parallel Bus B C C For directly linked with a parallel bus of CPU I/F. Sirial Bus B C C For directly linked with a sirial bus of CPU I/F. RF(Analog Video) B B C For the display of television(NTSC/PAL) Digital RGB B A C This is one of the old LCD connection systems. Analog RGB C B C This is one of the old LCD connection systems. LVDS C B A This has few signal wires. And it is strong in a noise. DVI Analog C B A This is the connection system of latest PC and LCD. DVI Digital C B A This is the connection system of latest PC and LCD.
| 5. Back light |
Type Visibility CCFL It is used for many years and used for a medium size or large-sized LCD. A CCFL inverter is required for this system.(CCFL:Cold Cathode Fluorescent Lamp) LED Many of new small LCD is this type.This kind is increasing also to middle LCD.However, a boost converter is required for this.
* A:Good B:Normal C:Bad
Type Visibility Electricity Demand Out-door In-door Transmissive type C A C Semi-transmissive type B B B Reflective type A C A
| 6. Others |
As an option
* Touchscreen... There are 4 wire systems and 5 wire systems, and the control methods differ.
* Kind of power supply... Although there is also a case of a single power supply,Many of LCD is many power supplies.
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