BOE HM185WX3-400 Specification

PROPRIETARY NOTE

THIS SPECIFICATION IS THE PROPERTY OF BOE HF AND SHALL NOT BE
REPRODUCED OR COPIED WITHOUT THE WRITTEN PERMISSION OF BOE HF AND
MUST BE RETURNED TO BOE HF UPON ITS REQUEST

SPEC. NUMBER

PRODUCT GROUP

TFT-LCD

Rev. PO 2011.10.12

TITLE : B3 HM185WX3-400 Open Cell

Product Specification

Rev.PO

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HEFEI BOE OPTOELECTRONICS TECHNOLOGY

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SPEC. NUMBER

TFT- LCD PRODUCT 2011.10.12

B3 HM185WX3-400 Open Cell Product Specification_ Rev.PO

Rev. PO

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REVISION HISTORY

REV. ECN No. DESCRIPTION OF CHANGES DATE PREPARED

PO

Initial Release

2011.10.12

张文浩

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REV

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No. Item Page

1.0 General Description 4

2.0 Absolute Maximum Ratings 6

3.0 Electrical Specifications 7

4.0 Optical Specifications 8

5.0 Interface Connection 10

6.0 Signal Timing Specifications 13

7.0 Signal Timing Waveforms of Interface Signal 15

8.0 Input Signals, Display Colors & Gray Scale of Colors 17

TFT- LCD PRODUCT

B3 HM185WX3-400 Open Cell Product Specification_ Rev.PO

Contents

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9.0 Power Sequence 18

10.0 Mechanical Characteristics 19

11.0 Reliability Test 20

12.0 Handling& Cautions 21

13.0 Product Serial Number 22

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SPEC. NUMBER

B3 HM185WX3-400 Open Cell Product Specification_ Rev.PO

1.0 GENERAL DESCRIPTION

1.1 Introduction

HM185WX3-400 is a color active matrix TFT LCD open cell using amorphous silicon
TFT's (Thin Film Transistors) as an active switching devices. This open cell has a 18.5 inch
diagonally measured active area with WXGA resolutions (1366 horizontal by 768 vertical
pixel array). Each pixel is divided into RED, GREEN, BLUE dots which are arranged in
vertical stripe and this open cell can display 16.7M colors. The TFT-LCD panel used for

this open cell is adapted for a low reflection and higher color type.

Connector (CN

LVDS
Input
Signal

LVDS Rx

+

T/CON

+

Mini LVDS Tx

Gate Driver

Source Driver

TFT LCD Panel

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1366 × 768

VDD

1

)

1.2 Features

 LVDS Interface with 1 pixel / clock
 High-speed response
 6-bit (Hi-FRC) color depth, display 16. 7M colors
 High luminance and contrast ratio, low reflection and normal viewing angle
 DE (Data Enable) only
 RoHS
 Gamma Correction

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DC/DC

Gamma

Vcom

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1.3 Application

 Desktop Type of PC & Workstation Use

 Slim-Size Display for Stand-alone Monitor

 Display Terminals for Control System
 Monitors for Process Controller

1.4 General Specification

The followings are general specifications at the open cell HM185WX3-400.

<Table 1. General Specifications>

B3 HM185WX3-400 Open Cell Product Specification_ Rev.PO

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Parameter Specification Unit

Active area
Number of pixels
Pixel pitch
Pixel arrangement RGB Vertical stripe
Display colors 16.7M colors
Display mode Normally White
Weight 420 (max.) g
Surface Treatment

409.8(H) × 230.4(V)
1366(H) × 768(V)

0.3(H) × 0.3(V)

Haze 25%, 3H

mm

pixels

mm

Remarks

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020406080

-2 0

5

20

406080

90

100

O p e ra tin g R a n g e

S to ra g e R a n g e

Relative H um id it y ( %R H)

T e m p e ra tu re (˚C )

REV

ISSUE DATE

SPEC. NUMBER

TFT- LCD PRODUCT

B3 HM185WX3-400 Open Cell Product Specification_ Rev.PO

2011.10.12 Rev. PO

2.0 ABSOLUTE MAXIMUM RATINGS

The followings are maximum values which, if exceed, may cause faulty operation or

damage to the unit. The operational and non-operational maximum voltage and current

values are listed in Table 2.

< Table 2. Absolute Maximum Ratings> [VSS=GND=0V]

Parameter

Power Supply Voltage VDD
Logic Supply Voltage VIN VSS-0.3 VDD+0.3 V
Operating Temperature TOP 0 +50

Storage Temperature TST -20 +60

Symbol Min. Max. Unit Remarks

-0.5 5.5

V

Ta = 25 ℃

℃

℃

1)

1)

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Note : 1) Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 OC max. and no condensation of water.

(39,90)

(50,50)

(60,30)

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B3 HM185WX3-400 Open Cell Product Specification_ Rev.PO

3.0 ELECTRICAL SPECIFICATIONS

3.1Electrical Specifications

< Table 3. Electrical specifications >

Parameter Min. Typ. Max. Unit Remarks

Power Supply Voltage VDD 4.5 5.0 5.5 V
Power Supply Current IDD - 600 1000 mA
In-Rush Current I
Permissible Input Ripple Voltage VRF - - 100 mV VDD = 5.0V
High Level Differential Input

Threshold Voltage
Low Level Differential Input

Threshold Voltage

- 2.0 3.0 A Note 2

RUSH

VIH - - +100 mV

VIL -100 - - mV

Note1

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[Ta =25± 2 ℃]

Differential input voltage |VID | 200 - 600 mV

Differential input common mode voltage Vcm 1.0 1.2 1.5

Power Consumption PD - 3 5 W

Notes : 1. The supply voltage is measured and specified at the interface connector of LCM.
The current draw and power consumption specified is for VDD=5.0V, Frame rate=75Hz and

Clock frequency = 95MHz. Test Pattern of power supply current

a) Typ : Color Bar pattern
b) Max : Skip Sub Pixel Pattern

2. Duration of rush current is about 2 ms and rising time of VDD is 520 μs ± 20 %

VIH=100mV,
VIL=-100mV

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4.0 OPTICAL SPECIFICATION

4.1 Overview

The test of Optical specifications shall be measured in a dark room (ambient luminance  1 lux and temperature =
252℃) with the equipment of Luminance meter system (Goniometer system and TOPCONE BM-5) and test unit shall

be located at an approximate distance 50cm from the LCD surface at a viewing angle of θ and Φ equal to 0. We refer to

θ

(=θ3 ) as the 3 o’clock direction (the “right”), θ

Ø=0

the 9 o’clock direction (“left”) and θ

(= θ6 ) as the 6 o’clock direction (“bottom”). While scanning θ and/or Ø, the

Ø=270

center of the measuring spot on the Display surface shall stay fixed. The measurement shall be executed after 30
minutes warm-up period. VDD shall be 5.0V +/-10% at 25C. Optimum viewing angle direction is 6 ’clock.

4.2 Optical Specifications

[VDD = 5.0V, Frame rate = 60Hz, Clock = 78MHz, I

Parameter Symbol Condition Min. Typ. Max. Unit Remark

Θ

Horizontal

Viewing Angle range

Vertical

Horizontal

Viewing Angle range

Vertical

Luminance Contrast ratio CR
Cell Transmittance Tr - 5.76 - % Note 4
White luminance uniformity ΔY 75 80 % Note 5

White

Reproduction

of color

Response

Time

Cross Talk CT - - 2.0 % Note 8

Red

Green

Blue

Rising T

Falling T

3

Θ

35 45 - Deg.

9

Θ

20 25 - Deg.

12

Θ

35 40 - Deg.

6

Θ

3

Θ

50 - - Deg.

9

Θ

30 - - Deg.

12

Θ

45 - - Deg.

6

Wx 0.283 0.313 0.343
Wy 0.299 0.329 0.359

R

x

R

y

G

x

G

y

Bx 0.127 0.155 0.187
B

y

1.5 2.5 ms

r

f

(= θ12 ) as the 12 o’clock direction (“upward”), θ

Ø=90

BL

35 45 - Deg.

CR > 10

50 - - Deg.

CR > 5

450 600 Note 3

Θ = 0

(Center)

Normal

Viewing

Angle

0.602 0.636 0.662

0.311 0.342 0.371

0.302 0.330 0.362

0.597 0.628 0.657

0.014 0.047 0.074

3.5 5.5 ms

(= θ9 ) as

Ø=180

= 7.5mA, Ta =25± 2 ℃]

Note 2

Note 6

Note 7

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Note :

1. The value in upper table are based on BLU provided by BOEHF.

2. Viewing angle is the angle at which the contrast ratio is greater than 10. The viewing are

determined for the horizontal or 3, 9 o’clock direction and the vertical or 6, 12 o’clock

direction with respect to the optical axis which is normal to the LCD surface.

3. Contrast measurements shall be made at viewing angle of = 0 and at the center of the LCD
surface. Luminance shall be measured with all pixels in the view field set first to white, then
to the dark (black) state. (See FIGURE 1 shown in Appendix) Luminance Contrast Ratio (CR)
is defined mathematically.

Luminance when displaying a white raster
CR =

Luminance when displaying a black raster

4. Luminance of LCD module shall be made without signal input. Cell transmittance is defined
mathematically, BLU provided by BOEHF.

Transmittance =

5. The White luminance uniformity on LCD surface is then expressed as :

ΔY = ( Minimum Luminance of 9points / Maximum Luminance of 9points ) * 100

(See FIGURE 2 shown in Appendix).

6. The color chromaticity coordinates specified in Table 4. shall be calculated from the spectral
data measured with all pixels first in red, green, blue and white. Measurements shall be made
at the center of the panel with BLU provided by BOEHF.

7. The electro-optical response time measurements shall be made as FIGURE 3 shown in

Appendix by switching the “data” input signal ON and OFF. The times needed for the

luminance to change from 10% to 90% is Td, and 90% to 10% is Tr.

8. Cross-Talk of one area of the LCD surface by another shall be measured by comparing the
luminance (YA) of a 25mm diameter area, with all display pixels set to a gray level, to the
luminance (YB) of that same area when any adjacent area is driven dark. (See FIGURE 4
shown in Appendix).

Luminance of LCD Module

Luminance of BLU

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