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B121EW0
7 V0
Product Specification
Record of Revision
Version and Date Page Old description New Description Remark
0.1 2006/10/15 All First Edition for Customer
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B121EW0
7 V0
Product Specification
1. Handling Precautions
1) Since front polarizer is easily damaged, pay attention not to scratch it.
2) Be sure to turn off power supply when inserting or disconnecting from input connector.
3) Wipe off water drop immediately. Long contact with water may cause discoloration or
spots.
4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard
surface.
6) Since CMOS LSI is used in this module, take care of static electricity and insure
human earth when handling.
7) Do not open nor modify the Module Assembly.
8) Do not press the reflector sheet at the back of the module to any directions.
9) In case if a Module has to be put back into the packing container slot after once it was
taken out from the container, do not press the center of the LED Reflector edge.
Instead, press at the far ends of the LED Reflector edge softly. Otherwise the TFT
Module may be damaged.
10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor
tilt the Interface Connector of the TFT Module.
11) After installation of the TFT Module into an enclosure (Notebook PC Bezel, for
example), do not twist nor bend the TFT Module even momentary. At designing the
enclosure, it should be taken into consideration that no bending/twisting forces are
applied to the TFT Module from outside. Otherwise the TFT Module may be
damaged.
12) Small amount of materials having no flammability grade is used in the LCD module. The LCD
module should be supplied by power complied with requirements of Limited Power Source(,
IEC60950 or UL1950), or be applied exemption.
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B121EW0
7 V0
Product Specification
2. General Description
B121EW07 V0 is a Color Active Matrix Liquid Crystal Display composed of a TFT LCD panel, a
driver circuit, and backlight system. The screen format is intended to support the WXGA
(1280(H) x 800(V)) screen and 262k colors (RGB 6-bits data driver). All input signals are
LVDS interface compatible. Inverter card of backlight is not included.
B121EW07 V0 is designed for a display unit of notebook style personal computer and industrial
machine.
2.1 Display Characteristics
The following items are characteristics summary on the table under 25 ℃ condition:
Items Unit Specifications
Screen Diagonal [mm] 307.9 (12.1W”)
Active Area [mm] 261.12(H) X 163.2(V)
Pixels H x V 1280x3(RGB) x 800
Pixel Pitch [mm] 0.204X0.204
Pixel Arrangement R.G.B. Vertical Stripe
Display Mode Normally White
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Typical White Luminance [cd/m2] 200 typ. (5 points average)
Luminance Uniformity 1.25 max. (5 points)
Contrast Ratio 400 min.
Optical Rise Time/Fall Time [msec] 10/15 typ.
Nominal Input Voltage VDD [Volt] +3.3 typ.
Typical Power Consumption [Watt] 4.0W max.
Weight (without inverter) [Grams] 215g typ. 230g max
Red x
Red y
Green x
Green y
Blue x
Blue y
White x
White y
-
-
-
-
1.25
1.6
-
- 15 20
25 35
0.560 0.580 0.600
0.320 0.340 0.360
0.290 0.310 0.330
0.530 0.550 0.570
0.135 0.155 0.175
0.135 0.155 0.175
0.283 0.313 0.343
0.299 0.329 0.359
40
40
20
40
10
-
-
-
-
15
2,7
1
5
2,7
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B121EW0
7 V0
= Maximum Brightness of thirteen points
Minimum Brightness of thirteen points
Maximum Brightness of five
points
= Minimum Brightness of five
points
Note 1: 5 points position (Display area : 261.12mm x 163.2mm)
W/4W/4W/4W/4
H/4
H/4
Product Specification
W
12
H
Note 2: 13 points position
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H
H/4
H/4
H/4
H/4
H/4
10
10
W/4
1
6
3
45
W
W/4
45
9
W/4
2
7
W/4
10
3
8
10
H/4
10
11
Note 3: The luminance uniformity of 5 and 13 points is defined by dividing the maximum luminance values by the
minimum test point luminance
δ
W5
δ
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W13
12
13
B121EW0
7 V0
Field=2
°
Note 4: Measurement method
The LCD module should be stabilized at given temperature for 30 minutes to avoid abrupt temperature change
during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Backlight
for 30 minutes in a stable, windless and dark room.
Product Specification
Photo detector
Note 5: Definition of Cross Talk (CT)
CT = | YB – YA | / YA × 100 (%)
Where
YA = Luminance of measured location without gray level 0 pattern (cd/m2)
YB = Luminance of measured location with gray level 0 pattern (cd/m2)
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B121EW0
7 V0
Note 6: Definition of response time:
The output signals of BM-7 or equivalent are measured when the input signals are changed from “Black” to
“White” (falling time) and from “White” to “Black” (rising time), respectively. The response time interval between
the 10% and 90% of amplitudes. Refer to figure as below.
Product Specification
"Black"
100%
Signal(Relative value)
90%
10%
0%
Tr
Tf
"White""White"
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B121EW0
7 V0
Note 7. Definition of viewing angle
Viewing angle is the measurement of contrast ratio 10, at the screen center, over a 180° horizontal and 180°≧
vertical range (off-normal viewing angles). The 180° viewing angle range is broken down as follows; 90° (θ)
horizontal left and right and 90° (Φ) vertical, high (up) and low (down). The measurement direction is typically
perpendicular to the display surface with the screen rotated about its center to develop the desiredmeasurement
viewing angle.
Product Specification
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