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| 7.8 inch colour 640 x 480 VGA | |
 This Product Is No Longer In Production. This information is given for reference only. |
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Display Composition
| Model Number | K6483L-FF |
| Type | Colour STN ( Super-Twist Nematic ) transmissive type negative display |
| Pixel format | 640 x 3 ( RGB ) x 480 individually addressable dots as a graphic matrix |
| Driving method | 1/240 duty multiplex drive, dual scan |
| Backlight | Single tube, edge-lit, cold cathode fluorescent tube with light guide |
| Surface texture | Non-glare polariser coating |
Overview
The K6483L-FF passive colour STN display features dual scan display addressing by virtue of Citizen's use of "Chip-On-Glass" ( C.O.G. ) technology. This provides the following advantages:-
• Dual scanning: effectively doubles the usual refresh rate of passive colour displays
• High contrast image giving a high colour depth
• Clearer, brighter colours with excellent picture definition
• Fast response time and more colour shades
• Compact, lightweight and robust
Together with the combination of C.O.G. technology, the fast fluid liquid crystal and low resistivity I.T.O. ( Indium-Tin Oxide ) electrodes ensure that the image on the display is high quality and high contrast making it extremely clear and easy to read. Mouse pointers do not become "lost" and multiplex smear is dramatically reduced.
Optical Characteristics at 25°C
| Item |
Symbol |
Typical |
Unit |
Condition |
| Turn on time |
TON |
200 |
ms |
q=0·, f=0· |
| Turn off time |
TOFF |
100 |
ms |
q=0·, f=0· |
| Contrast ratio |
CR |
30 |
- |
q=0·, f=0· |
| Visual range ("up & down") |
q1 |
-35<q1<+20 |
degrees |
q=0·, CR > 5 |
| Visual range ("left & right") |
q2 |
-40<q2<+50 |
degrees |
f=90·, CR > 5 |
Electrical Characteristics
| Item |
Symbol |
Minimum |
Typical |
Maximum |
Unit |
| Supply voltage for logic circuits |
VDD - VSS |
4.5 |
5.0 |
5.5 |
V |
| Supply voltage for LC panel drive |
VAA - VSS |
- |
23.4 |
28.0 |
V |
| Frame frequency |
FFRAME |
- |
120.0 |
- |
Hz |
| Current consumption |
IDD |
- |
88.0 |
173.0 |
mA |
| IAA |
- |
9.0 |
13.0 |
mA |
Temperature Range
| Item |
Minimum |
Maximum |
Unit |
| Storage temperature |
- 25 |
+ 60 |
·C |
| Operating temperature |
0 |
+ 45 |
·C |
Mechanical Specifications
Weight 0.362Kg ( 0.798 lbs )
Dimensions FFC models. (Wire-type have different input connectors)
Backlight Brighness
The display can have two types of backlight: a standard 60 cd / sq m version or an enhanced 70 cd / sq m type.
Connection Details
Displays should be connected by means of the 30-way data connector and the outside two pins of the 3-way backlight connector ( JST: BHR-03VS-1 ).
Two types of data cable are available: a flat-film connector ( FFC ) or a wire-type with moulded connector: Suggested cables / connectors are:
| FFC type cable | 30-way FFC, 1mm pitch |
| Wire type connector | Hirose DF-13-15S-1.25C |
Display Part Numbers
| Backlight type | FFC connector version | Wire-type connector version |
| 60 cd / sq m backlight | K6483L-FF-10B1 | K6483L-FF-10A1 |
| 70 cd / sq m backlight | K6483L-FF-1011 | K6483L-FF-1001 |
Terminal Connections
| Pin | Description | Pin | Description | Pin | Description |
| 1 | VSS | 11 | UD4 | 21 | LD3 |
| 2 | (nc) | 12 | UD3 | 22 | LD2 |
| 3 | VAA | 13 | UD2 | 23 | LD1 |
| 4 | VDD | 14 | UD1 | 24 | LD0 |
| 5 | -Disp Off | 15 | UD0 | 25 | VSS |
| 6 | (nc) | 16 | VSS | 26 | Frame |
| 7 | VSS | 17 | LD7 | 27 | Load |
| 8 | UD7 | 18 | LD6 | 28 | VSS |
| 9 | UD6 | 19 | LD5 | 29 | Clock |
| 10 | UD5 | 20 | LD4 | 30 | VSS |