JHB2004A Datasheet, PDF (16/23 Pages) Jewel Hill Electronic – The JHB2004A is a 20C x 4L Character LCD module. It has a STN panel composed of 200 segments and 16 commons. The LCM can be easily accessed by micro-controller via parallel interface.

JEWEL HILL ELECTRONIC CO.,LTD.
․Note 3. Definition of Viewing Angle θ and ψ :
Normal :
θ=0° _{12 O’clock Direction}
θ φ=180°
φ=270°
9 O’clock Direction
φ
φ=0°
φ=90°
3 O’clock Direction
Viewing Direction
6 O’clock Direction
․Note 4. Definition of Contrast ratio( CR) :
CR = ^{Brightness of Non-selected Segment (B2)}
Brightness of Selected Segment (B1)
100%
Brightness Curve for
Selected Segment
Brightness Curve for
Non-selected Segment
B2
Contrast
CR,max
0%
JHB2004A VER: 4.0
B1
V,max
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Driving Voltage
Issue date: 2009/12/03