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PDF LQ121X3LGxx Data sheet ( Hoja de datos )
| Número de pieza | LQ121X3LGxx | |
| Descripción | TFT LCD Module | |
| Fabricantes | Sharp | |
| Logotipo |  |
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No. LD –21Y53A
DATE
Nov. 18.2009
REVISED
TECHNICAL LITERATURE
FOR
TFT - LCD module
MODEL No. LQ121X3LGxx
The technical literature is subject to change without notice.
So, please contact Sharp or its representative before designing
your product based on this literature.
PC DISPLAY & LCD MONITOR BUSINESS
PLANNING & MARKETING PROJECT TEAM ,
DIVISIONⅡ MOBILE LCD Group
SHARP CORPORATION
1 page  
LD-21Y53A-3
1. Application
This technical literature applies to a color TFT-LCD module, LQ121X3LGxx.
2. Overview
This module is a color active matrix LCD module incorporating amorphous silicon TFT (Thin Film
Transistor). It is composed of a color TFT-LCD panel, driver ICs, control circuit and power supply circuit
and a backlight unit. Graphics and texts can be displayed on a 1024×3×768 dots panel with 262,144 colors by
using LVDS (Low Voltage Differential Signaling) to interface and supplying +3.3V DC supply voltage for
TFT-LCD panel driving and supply voltage for backlight.
In this TFT-LCD panel , low reflection / color filters of excellent color performance and LED backlights of
high brightness are incorporated to realize brighter and clearer pictures, making this model optimum for use
in multi-media applications.
Optimum viewing direction is 6 o'clock.
LED Backlight-driving DC/DC converter is not built in this module.
3. Mechanical Specifications
Parameter
Display size
Active area
Pixel format
Aspect ratio
Pixel pitch
Pixel configuration
Display mode
Surface treatment
Specifications
30.7(12.1") Diagonal
245.8 (H)× 184.3(V)
1024(H)×768(V)
(1 pixel = R+G+B dots)
4:3
0.240(H)×0.240 (V)
R,G,B vertical stripe
Normally white
Antiglare and hard-coating 2H
Unit
cm
mm
pixel
mm
Parameter
Min.
Unit outline dimensions
[Note 1]
Width
Height
Depth
(258.5)
(204.5)
－
Mass
－
[Note 1] excluding LED backlight FPC.
Outline dimensions is shown in Fig.2
Typ.
(259)
(205)
(7.5)
(530)
Max.
(259.5)
(205.5)
(8.0)
Unit
mm
mm
mm
g
5 Page 
6-2. Backlight driving
LD-21Y53A-9
The backlight system is edge-lighting type with 40 White-LED(White Light Emitting Diode).
The characteristics of White-LED are shown in the following table.
(Ta=25 oC)
Parameter
Symbol Min. Typ. Max. Unit
Remark
LED forward voltage
VLED_F
LED forward voltage variation ⊿VLED_F
LED forward current range
ILED_F
Number of circuit strings
－
－
－
－
(24.0)
－
(70)
5
(27.2)
3.2
(70)
－
V
V
mA
[Note1]
[Note1] [Note2]
Value for one string
[Note 3]
LED power consumption
WLED － (8.4) (9.5) W
[Note1] [Note 4]
LED life time
LLED (50000) －
－ Hour
[Note 5]
[Note1] ILED_F = (70mA)
[Note2] Variation of VLED_F between each string in one LCD module.
[Note 3] The LED backlight is composed by 5 strings from which 8 LED is connected with the series.
The figure below shows the circuit chart of each string.
In each circuit, there is a ceramic capacitor for the electrostatic protection.
LED_A
LED×40
LED_C5
LED_C4
LED_C3
LED_C2
LED_C1
[Note 4] Calculated value for reference ( ILED_F × VLED_F )
[Note 5] LED life time is defined as the time when Brightness becomes 50 % of the original value.
under the condition of Ta = 25℃ and ILED_F = (70mA), and continuous lighting.
11 Page | ||
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| PDF Descargar | [ Datasheet LQ121X3LGxx.PDF ] | |
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