LS027B7DH01 Sharp Microelectronics, LS027B7DH01 Datasheet - Page 25

• Manufacturer Part Number: LS027B7DH01
• Description: LCD Graphic Display Modules & Accessories 2.7 WQVGA HR-TFT 400x240 w/FPC
• Manufacturer: Sharp Microelectronics

Specifications of LS027B7DH01

• Pixel Density: 400 x 240
• Module Size (w X H X T): 62.8 mm x 42.82 mm
• Viewing Area (w X H): 58.8 mm x 35.28 mm
• Operating Temperature Range: - 20 C to + 70 C
• Attached Touch Screen: No
• Product: 2.7 in WQVGA Monochrome
• Display Mode: Transmissive
• Interface: Serial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SPEC No.
MODEL No.
PAGE
22
LCY-1210401A
LS027B7DH01
【Remark 7-1】Definition of Viewing Angle
Normal Line
法線
Δθ22
Δθ11
Δθ12
Δθ21
６時方向
6 o’clock direction
【Remark 7-2】 Definition of Contrast Ratio
Defined as shown in below formula
Reflection intensity of white display
Contrast Ratio (CR) ＝
Reflection intensity of black display
【Remark 7-4】Definition of Response Speed (Reflection Ratio Change)
Input signal for white and black as shown below and define by the change in time it takes for optical receiver output.
White
Black
White
Time
Figure 7-3 Measurement of response speed
【Remark 7-5】 Panel luminance calculation.
Backlight can be implemented underneath the panel, display can be shown with the luminance which is depended on the
Backlight luminance. The luminance can be calculated by the panel transimisivity "(0.35%)” multiply “Backlight luminance”.