HITACHI TX38D18VM2BAA Specification

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FOR MESSRS: DATE : Oct. 8th ,2012

CUSTOMER’S ACCEPTANCE SPECIFICATIONS

TX38D18VM2BAA

Contents

No. ITEM SHEET No. PAGE

1 COVER 7B64PS 2701-TX38D18VM2BAA-1 1-1/1

2 RECORD OF REVISION 7B64PS 2702-TX38D18VM2BAA-1 2-1/1

3 GENERAL DATA 7B64PS 2703-TX38D18VM2BAA-1 3-1/1

4 ABSOLUTE MAXIMUM RATINGS 7B64PS 2704-TX38D18VM2BAA-1 4-1/1

5 ELECTRICAL CHARACTERISTICS 7B64PS 2705-TX38D18VM2BAA-1 5-1/2~2/2

6 OPTICAL CHARACTERISTICS 7B64PS 2706-TX38D18VM2BAA-1 6-1/2~2/2

7 BLOCK DIAGRAM 7B64PS 2707-TX38D18VM2BAA-1 7-1/1

8 RELIABILITY TESTS 7B64PS 2708-TX38D18VM2BAA-1 8-1/1

9 LCD INTERFACE 7B64PS 2709-TX38D18VM2BAA-1 9-1/8~8/8

10 OUTLINE DIMENSIONS 7B64PS 2710-TX38D18VM2BAA-1 10-1/2~2/2

11 APPEARANCE STANDARD 7B64PS 2711-TX38D18VM2BAA-1 11-1/3~3/3

12 PRECAUTIONS 7B64PS 2712-TX38D18VM2BAA-1 12-1/1~2/2

13 DESIGNATION OF LOT MARK 7B64PS 2713-TX38D18VM2BAA-1 13-1/1

ACCEPTED BY:

PROPOSED BY:

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2. RECORD OF REVISION

DATE SHEET No. SUMMARY

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3. GENERAL DATA

3.1 DISPLAY FEATURES

This module is a 15” XGA of 4:3 format amorphous silicon TFT. The pixel format is vertical stripe and
sub pixels are arranged as R (red), G (green), B (blue) sequentially. This display is RoHS compliant,
COF (chip on film) technology and LED backlight are applied on this display.

Part Name TX38D18VM2BAA

Module Dimensions 326.5(W) mm x 253.5(V) mm x 11.5 (D) mm

LCD Active Area 304.1(H) mm x 228.1(V) mm

Pixel Pitch 0.297(W) mm x 0.297 (H) mm

Resolution 1024 x 3(RGB)(W) x 768(H) dots

Color Pixel Arrangement R, G, B Vertical stripe

LCD Type Transmissive Color TFT; Normally White; Anti-Glare Polarizer

Display Type Active Matrix

Number of Colors 16.7M / 262k Colors

Backlight 39 LEDs (13 series x 3)

Weight (850g)

Interface 1ch - LVDS / Receiver; 20 pins

Power Supply Voltage 3.3V for LCD; 12V and 5V for Backlight

Power Consumption (1.7W) for LCD; (13.2 W) for Backlight

Viewing Direction

12 O’clock (without image inversion and least brightness change)

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4. ABSOLUTE MAXIMUM RATINGS

Item Symbol Min. Max. Unit Remarks

Supply Voltage VDD -0.3 4 V -

Input Voltage of Logic VI -0.2 VDD+0.3 V Note 1

Operating Temperature Top -30 80

Storage Temperature Tst -30 80

Backlight Input Voltage V

Input Voltage of backlight control V

10 30 V -

LED

0 6.0 V Note 3

LEDC

Note 1: The rating is defined for the signal voltages of the interface such as DE, DCLK, FRC and pixel

data signal.

Note 2: The maximum rating is defined as above based on the temperature on the panel surface and

LED driver board, which might be different from ambient temperature after assembling the
panel into the application. Moreover, some temperature-related phenomenon as below needed
to be noticed:

$

Note 2

C

$

Note 2

C

- Background color, contrast and response time would be different in temperatures other than

$

.

25

C

- Operating under high temperature will shorten LED lifetime.

- Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to

such conditions may adversely impact product reliability and result in failures not covered by
warranty.

Note 3: The Backlight control signal voltage of the interface such as EN,DDIM and ADIM signal.

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5. ELECTRICAL CHARACTERISTICS

5.1 LCD CHARACTERISTICS

Item

Symbol

Condition Min. Typ. Max. Unit Remarks

$

a

Power Supply Voltage VDD - 3.0 3.3 3.6 V -

Ripple Voltage VRP - - - 100 mVp-p

Rush Current I
Differential Input

Voltage for LVDS
Receiver Threshold

- - - 2.0 A Note 1

RUSH

- - +100

V

V

I

IH

VIL -100 - -

mV Note 2

White Pattern - 410 510

Power Supply Current IDD

mA Note 3,4

Black Pattern - 590 690

DCLK Frequency

- - 65 80 MHz -

f

CL

Note 1: Rush current is set maximum 2A. Current capacity for VDD power supply should be larger than

5A, so that fuse built in the LCM could appropriately work under the abnormal condition.

Note 2: V

=+1.2V

CM

The input terminal of LVDS transmitter is terminated with 100.

IN+

100

IN-

LVDS

Receiver

0VV,25

SS

CT

Note 3: f

=65.0MHz, and VDD=3.3V, are the test conditions.

CLK

DC Ampere Meter

V

DD

I

DD

TFT-LCM

V

DD

V

SS

Note 4: For LVDS Transmitter Input

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5.2 BACKLIGHT CHARACTERISTICS

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$

CT

25

a

Item

LED Input Voltage

Enable EN 4.5 5 5.5 -

Analog Dimming

Function

Digital Dimming

Function

Symbol

V

LED

Condition Min. Typ. Max. Unit Remarks

10.8 12.0 13.2

Note 1

Backlight Unit

ADIM 0 5 5.5

“H” Level

4.0 5 5.5

V

DDIM

“L” Level 0 0 0.2

Note 2,3

ADIM = 0V,

LED Driving Current

(DIM Control)

I

LED

DDIM = 0% Duty

ADIM = 5V,

- (1100) -

mA

- (55) -

DDIM = 100% Duty

LED Lifetime - 110mA x 3 - (50k) - hrs Note 4

Note 1: As Fig 5.1 shown, all LEDs are controlled by the LED Driver when applying 12V V

LED

.

Note 2: Dimming function can be obtained by applying DC voltage or PWM signal from the display

interface CN2. The recommend PWM signal is 1KHz~10KHz with 5V amplitude. The
brightness is increased when applied DC voltage of ADIM or PWM duty of DDIM is decreased.

Note 3: 4A fuse is built in the LED voltage control board, current capacity for V

power supply should

LED

be larger than 10A, so that the fuse built in the LED voltage control board could appropriately
work under the abnormal condition.

Note 4: The estimated lifetime is specified as the time to reduce 50% brightness by applying 110mA x 3

$

at 25

.

C

Note 5: I

vs DIM Voltage (Reference only)

LED

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6. OPTICAL CHARACTERISTICS

The optical characteristics are measured based on the conditions as below:

- Supplying the signals and voltages defined in the section of electrical characteristics.

- The backlight unit needs to be turned on for 30 minutes.

$

- The ambient temperature is 25

- In the dark room around 100~200 lx, the equipment has been set for the measurements as shown in
Fig 6.1.

Item

Brightness of White -

Brightness Uniformity - (70) 80 - % Note 2

Contrast Ratio CR (450) 700 - - Note 3

Response Time

Rising + Falling

(

)

Viewing Angle

Red

Green

Color

Chromaticity

Blue

White

Symbol

x

X

Y

X (0.29) 0.34 (0.39)

Y (0.55) 0.60 (0.65)

X (0.10) 0.15 (0.20)

Y (0.05) 0.10 (0.15)

X (0.28) 0.33 (0.38)

Y (0.30) 0.35 (0.40)

.

C

$

a

Condition Min. Typ. Max. Unit Remarks

2

cd/m

$$

0,0

TI

(960) 1200 -

,

Note 1

110mA x 3

TT 

fr

c

x

y

c

y

$

I

$

I

$

I

I

$

$$

- 25 35 ms Note 4

0,0

TI

10 CR ,0 t

(70) 80 -

10 CR ,180 t

(70) 80 -

Degree Note 5

10 CR ,90 t

(60) 70 -

10 CR ,270 t

(70) 80 -

(0.57) 0.62 (0.67)

(0.30)

$$

0,0

TI

0.35

(0.40)

- Note 6

DD

VCT

3.3V,25

Note 1: The brightness is measured from the panel center point, P5 in Fig. 6.2, for the typical value.

Note 2: The brightness uniformity is calculated by the equation as below:

uniformity Brightness u

Brightness Min.

100%

Brightness Max.

, which is based on the brightness values of the 5 points measured by BM-5 as shown in Fig. 6.2.

Horizontal Line

D

Photo Detector: BM-5

$

1

Field:

Distance: 500 mm

LCD panel

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W

3W/4

D/4 D/2 3D/4

W/4

W/2

1 2

3 4

5

Fig. 6.2 Fig. 6.1

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Note 3: The Contrast Ratio is measured from the center point of the panel, P5, and defined as the

following equation:

CR

Whiteof Brightness

Black of Brightness

Note 4: The definition of response time is shown in Fig. 6.3. The rising time is the period from 90%

brightness to 10% brightness when the data is from white to black. Oppositely, Falling time is
the period from 10% brightness rising to 90% brightness.

WhiteWhite Black

Rising time Falling time

100 %

90

Brightness

10

0

Tr Tf

Fig . 6.3

Note 5: The definition of viewing angle is shown in Fig. 6.4. Angle I is used to represent viewing

directions, for instance,

$

means 6 o’clock, and

270

I

$

means 3 o’clock. Moreover, angle

0

I

is used to represent viewing angles from axis Z toward plane XY.

The viewing direction of this display is 12 o’clock, which means that a photograph with gray

scale would not be reversed in color and the brightness change would be less from this
direction. However, the best contrast peak would be located at 6 o’clock.

Ż

ľġViewing angle

90$

I

12 o'clock

180$

I

9 o'clock

ź

,0)y(x,

0$

I

xx'

3 o'clock

źĨ

270$

I

ŻĨ

6 o'clock

Fig 6.4

Note 6: The color chromaticity is measured from the center point of the panel, P5, as shown in Fig. 6.2.

Note 7: Relative Brightness V.S DIM Voltage (Reference only)

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