HP (Hewlett-Packard) EF227A4-#xxx Computer Monitor User Manual


 
Panel
Type
20-inch Active Matrix TFT (thin film transistor)
Viewable Image Area
(diagonal)
20.1 in (51 cm)
Screen Opening
(WxH)
16.2 x 12.17 in (40.8 x 30.6 cm)
Viewing Angle
(typical)
1
178° horizontal/178° vertical (10:1 minimum contrast ratio)
Brightness
(typical)
1
300 nits (cd/m
2
)
Contrast Ratio
(typical)
1
800:1
Response Time
(typical)
1
8 ms
2
Pixel Pitch
0.255 mm
Backlight Lamp Life
(to half brightness)
45K hours
Bezel Width
16 mm
On Screen Display
(OSD)
Controls
Buttons or Switches
OSD menu select, auto adjust/OSD up, OSD down
Input select, power
Languages
English, French, German, Spanish, Italian, Dutch, and Japanese
User Controls
Brightness, contrast, positioning, color temperature, individual color
control, serial number display, full screen resolutions, clock, clock
phase, input selection, image control (including scaling), and factory
reset
Signal Interface/
Performance
Horizontal Frequency
30 to 94 kHz (VGA input); 30 to 92 KHz (DVI input for modes with pixel
clock less than 162 MHz)
Vertical Frequency
48 to 85 Hz (VGA input); 48 to 85 Hz (DVI input for modes with pixel
clock less than 162 MHz)
Native Resolution
1600 x 1200 @ 60 Hz (recommended)
Preset VESA Graphic
Modes
(non-interlaced)
1600 x 1200 @ 60 Hz, 75 Hz (analog input)
1280 x 1024 @ 60 Hz, 75 Hz, and 85 Hz
1280 x 960 @ 60 Hz
1152 x 900 @ 66 Hz
1024 x 768 @ 60 Hz, 75 Hz, and 85 Hz
800 x 600 @ 60 Hz, 85 Hz
640 x 480 @ 60 Hz, 75 Hz, and 85 Hz
Text Mode
720 x 400 @ 70 Hz
Mac Mode
1152 x 870 @ 75 Hz and 832 x 624 @ 75 Hz
Sun Mode
1152 x 900 @ 66 Hz
Maximum Pixel Clock
Speed
202 MHz (analog input); 162 MHz (DVI input)
User Programmable
Modes
Yes, 10
Anti-Glare
Yes
Anti-Static
Yes
Default Color
Temperature
6500 K
Video/Other Inputs
Plug and Play
Yes
Self Powered USB 2.0
Hub
One upstream, four downstream ports (cable included)
Input Signal
Two DVI-I connectors (dual VGA analog or dual digital input possible)
Input Impedance
75 ohms ± 10%
QuickSpecs
HP LP2065 20-inch LCD Monitor
Technical Specifications
DA - 12377 Worldwide QuickSpecs — Version 7 — 10.3.2007
Page 2