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 Ordering number : ENN6769
LCD Module
ALP237FXX
Low-Temperature Polysilicon 1.8-inch TFT LCD Module
Overview
This wide viewing type 1.8 inch low temperature poly- silicon TFT-LCD module is suitable for digital still camera.
Features
* Diagonal 4.6cm (1.8inch) display size. * 521 x 218 = 113,578 dots. * RGB delta color arrangement. * Wide viewing angle, Survival(R) . (Super Ranged Viewing by Vertical Alignment) * Operating temperature (panel) is -10 to +60C. Ambient temperature during storage is -20 to +70C. * Slim design, light weight and narrow frame. (t=0.7mm glass) * Up / down and right / left inverse function. * Built-in level shifter circuit. * Conform to NTSC, PAL when using recommended IC : LV4131W, LV4133W, (LV4139W : Under development). * Anti-reflection (AR) coat. * Panel power consumption is Typ.100mW at NTSC. * Optical transmittance is approx. 6.3%.
Specifications
Item Dot count (H) x (V) Effective display dimensions (H) x (V) Display size (diagonal) Dot pitch (H) x (V) Color arrangement External Dimensions (W) x (H) x (D) Weight *Note1: Excluding flexible cable and protrusions. Specifications 521 x 218 36.77 x 27.47 4.6 (1.8inch) 0.0705 x 0.126 RGB Delta TYP 43.4 x 36.6 x 2.1 Approx. 6 Unit dot mm cm mm mm g Remarks
Note1
Ver.1.6 12898
13001 RM (IM) No.6769-1/8
ALP237FXX Absolute Maximum Ratings at VSS=0V
Item H driver power supply voltage V driver power supply voltage Common electrode voltage Driving direction signal voltage H driver input voltage V driver / precharge data input voltage Video / precharge data input voltage Operating temperature (panel) Storage temperature Symbol HVDD VVDD VCOM CSH, CSV STH, XSTH, CKH1, CKH2 STV, XSTV, CKV1, CKV2, ENB, XENB, PCG, XPCG VG, VR, VB, VPCD Topr Tstg -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 -10 -20 Ratings to to to to to to to to to +17 +17 +17 +17 +17 +17 +13 +60 +70 Unit V V V V V V V C C
Operating Conditions Power supply voltage
Item H driver input voltage V driver input voltage CSV, CSH Video signal center voltage
HVDD 15.5V 0.5V, VVDD 15.5V 0.5V, VSS 0V
Symbol Low High Low High Low High VHIL VHIH VVIL VVIH VSIL VSIH VVC VG, VR, VB VCOM VPCD MIN -0.3 2.5 -0.3 2.5 -0.3 11.5 6.3 VVC-5.0 (VVC-0.3)-0.2 VVC4.5 TYP 0.0 3.0 0.0 3.0 0.0 VDD 6.5 (VVC-0.3) MAX 0.3 4.0 0.3 4.0 0.3 VDD 6.8 VVC+5.0 (VVC-0.3)+0.2 VVC5.0 Unit V V V V V V V V V V
Video signal input voltage range *1 Common electrode voltage*2 Precharge data signal *1
*1 Video signal and precharge data signal shall be input symmetrically around VVC. *2 Set common electrode voltage to the optimum voltage. Optical Specifications
Item Contrast ratio Symbol CR T B L R Condition 25C MIN TYP 150 55 55 45 45 MAX Unit -
Viewing angle range
CR >= 10
-
-
deg
No.6769-2/8
ALP237FXX
Pin Function
Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol NC COM CKV1 CKV2 VVDD STV XSTV CSV ENB XENB PCD B R G VSS XPCG PCG CSH XSTH STH CKH2 CKH1 HVDD NC Leave this pin open Common electrode voltage V clock 1 V clock 2 VDD for V drive V start signal Inverted signal of STV Up / down inverse control signal (H : Normal scan, L : Reverse scan) Enable signal Inverted signal of ENB Precharge data signal Video signal (B) Video signal (R) Video signal (G) VSS for V and H drive Inverted signal of PCG Precharge gate signal Right / left inverse control signal (H : Normal scan, L : Reverse scan) Inverted signal of STH H start signal H clock 2 H clock 1 VDD for H drive Leave this pin open Function
No.6769-3/8
ALP237FXX
Block Diagram
Front View
Norm al Scan Reverse Scan
STH C KH 1 C KH 2 H VD D C SH VSS
VSS
H-DRIVER
G R B
VSS
...
...
COM
VVDD
V-DRIVER
VVDD ENB CSV STV CKV2 CKV1
Norm al Scan ...
...
Reverse Scan ...
...
...
...
PC D
PRECHARGE CIRCUIT
PC G XPC G
L/S
L/S
L/S
L/S
L/S
L/S
24.NC 23.HVDD 22.CKH1 21.CKH2 20.STH 19.XSTH 18.CSH 17.PCG 16.XPCG 15.VSS 14.G 13.R 12.B 11.PCD 10.XENB 9.ENB 8.CSV 7.XSTV 6.STV 5.VVDD 4.CKV2 3.CKV1 2.COM 1.NC
No.6769-4/8
ALP237FXX
System Configuration
X'tal Video signal
C om posite Y/C Y/Color difference
L V 41 3 1W S ig n a l p ro c e s sin g IC
R G B RG B drivers (S&H) R G PCD B
L o w -te m p e ra tu re p -S i T F T -L C D
Horizontal scanner
Vertical scanner
Video chrom a signal processing
Display area
Serial control
BUS I/F
Sync. sep.
Tim ing controller
Level shifter
Precharge circuit
VCO
AL P 2 3 7
L V 41 3 3W S ig n a l p ro c e s sin g IC
Video signal
Analog RG B R G B RG B drivers (S&H) R G PCD B
L o w -te m p e ra tu re p -S i T F T -L C D
Horizontal scanner
Vertical scanner
Display area
Serial control Synchronus signal
BUS I/F
Sync. sep.
Tim ing controller
Level shifter
Precharge circuit
VCO
AL P 2 3 7
No.6769-5/8
ALP237FXX
System Configuration
X'tal Video signal
C om posite Y/C Y/Color difference
L V 41 3 9W S ig n a l p ro c e s sin g IC
**U n d e r d e ve lo p m e n t
L o w -te m p e ratu re p -S i T F T -L C D
R Horizontal scanner G PCD
B
Vertical scanner
Video chrom a signal processing
R G
RG B drivers (S&H)
B
Display area
Serial control
BUS I/F
Sync. sep.
Tim ing controller
Level shifter
Precharge circuit
VCO
AL P 2 3 7
No.6769-6/8
ALP237FXX
Package Dimension
No.6769-7/8
ALP237FXX
PS No.6769-8/8


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