LM32019TFW

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

K.C.

Date: 2009-08-07

Date:

Date:

Rev. Descriptions

Release Date

0.1

Preliminary new release

2008-01-03

0.2

Revise VEE supply voltage

2008-06-05

0.3

Update Backlight Characteristics

2009-06-12

0.4

Add Reliability Test

2009-07-31

0.5

Update Absolute Maximum Rating

2009-08-07

URL: www.topwaydisplay.com

Document Name: LM32019TFW-Manual-Rev0.5

Page: 1 of 9

TOPWAY

LCD Module User Manual

LM32019TFW

Table of Content

1. Basic Specifications .............................................................................................................. 3

1.1

Display Specifications ............................................................................................................................................ 3

1.2

Mechanical Specifications ...................................................................................................................................... 3

1.3

Block Diagram ........................................................................................................................................................ 3

1.4

FFC Terminal Functions ......................................................................................................................................... 4

1.5

Backlight Terminal Functions ................................................................................................................................. 4

2. Absolute Maximum Ratings .................................................................................................. 5

3. Electrical Characteristics ...................................................................................................... 5

3.1

DC Characteristics ................................................................................................................................................. 5

3.2

LED Backlight Circuit Characteristics ..................................................................................................................... 5

3.3

AC Characteristics ................................................................................................................................................. 6

4. Function Specifications ......................................................................................................... 7

4.1

Adjusting the Display Contrast ............................................................................................................................... 7

4.2

Display Pixel Map ................................................................................................................................................... 7

4.3

Signal Sequence .................................................................................................................................................... 8

5. Design and Handling Precaution .......................................................................................... 9

6. Reliability Test ....................................................................................................................... 9

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Document Name: LM32019TFW-Manual-Rev0.5

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LCD Module User Manual

LM32019TFW

1. Basic Specifications

1.1 Display Specifications

1) LCD Display Mode

: STN, Negative, Transmissive

2) Display Color

: Display Data = “1” : Light Gray (*1)

: Display Data = “0” : Dark Blue (*2)

3) Driving Method

: 1/240 duty, 1/14 bias

4) Backlight

: White LED backlight

Note:

*1. Color tone may slightly change by Temperature and Driving Condition.

*2. The Color is defined as the inactive / background color

1.2 Mechanical Specifications

1) Outline Dimension

: 159.0 x 107.8 x 10.0 MAX.

see attached Outline Drawing for details

1.3 Block Diagram

VDD,VSS

VEE

Power Circuit

LP

SEG

SEG

CP

Driver

Driver

/DISPOFF

D0~D3

FLM

COM1

320 x 240 pixels

:

LCD Panel

COM240

BLA, BLK

Backlight Circuit

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LM32019TFW

1.4 FFC Terminal Functions

Pin

Pin

No.

Name

I/O

Descriptions

1

FLM

Input

First Line Marker

2

LP

Input

Line Pulse signal,

for latching the segment buffer to the segment driver

3

CP

Input

Clock Pulse signal,

for shifting the data (D0~D3) into the segment buffer

4

NC

Input

No connection (leave open)

5

/DISPOFF

Input

Display ON/OFF control signal,

/DISPOFF = 0, display off

/DISPOFF = 1, display on

6

D0

Input

Display Data

7

D1

Input

Display Data

8

D2

Input

Display Data

9

D3

Input

Display Data

10

VDD

Power Positive Power Supply

11

VSS

Power 0V Power Supply, GND

12

VEE

Input

LCD Driving Supply

1.5 Backlight Terminal Functions

Pin

Pin

Color

Name

I/O

Descriptions

Red

BLA

Power Positive Power Supply for LED backlight

White

BLK

Power Negative Power Supply for LED backlight

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LCD Module User Manual

LM32019TFW

2. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit

Condition

Logic Supply

V DD

-0.3

+6.0

V

V SS = 0V

LCD Driving Supply

V EE

-0.3

+30.0

V

V SS = 0V

Input Voltage

V IN

V SS -0.3

V DD +0.3

V

V SS = 0V

Operating Temperature

T OP

-20

70

 C

No Condensation

Storage Temperature

T ST

-30

80

 C

No Condensation

Cautions:

Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this

device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may

affect device reliability.

3. Electrical Characteristics

3.1 DC Characteristics

V SS =0V, V DD =5.0V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit Applicable Pin

Logic Supply

V DD

3.0

5.0

5.3

V

VDD

LCD Driving Supply

V EE

-

22.6

-

V

VEE (*1)

Frame Freq.

f FRAME

60

66

80

Hz

D0~D3, CP, LP,

Input High Voltage

V IN

0.8xVDD

-

VDD

V

FLM, M, /DISPOFF

D0~D3, CP, LP,

Input Low Voltage

V IN

0

-

0.2x VDD

V

FLM, M, /DISPOFF

Operating Current

I DD

-

0.1

0.5

mA VDD

LCD Driving current

I EE

-

2.0

10.5

mA VEE

Note:

*1. Frame freq. at 66Hz

3.2 LED Backlight Circuit Characteristics

BLK=0V, If BLA =153mA, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit

Applicable Pin

Forward Voltage

Vf BLA

-

5.0

-

V

BLA

Forward Current

If BLA

-

153

200

mA

BLA

Cautions:

Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.

BLA

BLK

No. of LED = 9pcs

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LCD Module User Manual

LM32019TFW

3.3 AC Characteristics

V SS =0V, T OP =25  C

V DD =5.0V

V DD =3.3V

Item

Symbol

MIN.

MAX.

MIN.

MAX.

Unit

Shift clock period (*1)

twck

90

-

160

-

ns

Shift clock “H” pulse width

twckh

30

-

64

-

ns

Shift clock “L” pulse width

twckl

30

-

64

-

ns

SEG Data set-up time

tds

13

-

38

-

ns

SEG Data hold time

tdh

13

-

50

-

ns

Latch pulse “H” pulse width

twlph

30

-

64

-

ns

Shift clock rise to latch pulse rise time

tld

9

-

9

-

ns

Shift clock fall to latch pulse fall time

tsl

32

-

64

-

ns

Latch pulse rise to shift clock rise time

tls

32

-

64

-

ns

Latch pulse fall to shift clock fall time

tlh

32

-

64

-

ns

Rise time

tr

-

40

-

40

ns

Fall time

tf

-

40

-

40

ns

/DISPOFF removal time

tsd

125

-

125

-

ns

/DISPOFF “L” pulse width

twdl

1500

-

1500

-

ns

COM Data setup time

tsu

38

-

38

-

ns

COM Data hold time

th

63

-

63

-

ns

Note: *1. tr, tf < 9ns

Interface Timing Digram

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LCD Module User Manual

LM32019TFW

4. Function Specifications

4.1 Adjusting the Display Contrast

Adjusting the LCD Driving Supply on the VEE will result the change of LCD display contrast.

The following is a simplest circuit to provide a variable voltage on VEE.

LCD module

VDD

VR

VEE

VSS

4.2 Display Pixel Map

1,1

2,1

3,1

4,1

5,1

316,1

317,1

318,1

319,1

320,1

(D3)

(D2)

(D1)

(D0)

(D3)

- - -

- - -

(D0)

(D3)

(D2)

(D1)

(D0)

1,2

2,2

3,2

4,2

5,2

316,2

317,2

318,2

319,2

320,2

(D3)

(D2)

(D1)

(D0)

(D3)

- - -

- - -

(D0)

(D3)

(D2)

(D1)

(D0)

1,3

2,3

3,3

4,3

5,3

316,3

317,3

318,3

319,3

320,3

(D3)

(D2)

(D1)

(D0)

(D3)

- - -

- - -

(D0)

(D3)

(D2)

(D1)

(D0)

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

1,238

2,238

3,238

4,238

5,238

316,238 317,238 318,238 319,238 320,238

(D3)

(D2)

(D1)

(D0)

(D3)

- - -

- - -

(D0)

(D3)

(D2)

(D1)

(D0)

1,239

2,239

3,239

4,239

5,239

316,239 317,239 318,239 319,239 320,239

(D3)

(D2)

(D1)

(D0)

(D3)

- - -

- - -

(D0)

(D3)

(D2)

(D1)

(D0)

1,240

2,240

3,240

4,240

5,240

316,240 317,240 318,240 319,240 320,240

(D3)

(D2)

(D1)

(D0)

(D3)

- - -

- - -

(D0)

(D3)

(D2)

(D1)

(D0)

Pixel mapping (Top View)

Based on the top view of the LCD module,

the 1, 1 (x, y) pixel is the upper-left pixel;

the 320, 240 (x, y) pixel is the lower-right pixel.

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Document Name: LM32019TFW-Manual-Rev0.5

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LCD Module User Manual

LM32019TFW

4.3 Signal Sequence

In the upper section (expended view), shows the data sequence of lines.

In the lower section (compressed view), shows the signal sequence of FLM, LP and M in frames.

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LCD Module User Manual

LM32019TFW

5. Design and Handling Precaution

Please refer to "LCD-Module-Design-Handling-Precaution.pdf".

6. Reliability Test

Test Items

Testing Condition

Note

High Temperature Storage

Duration = 96 hours,

Non-operating

Temperature = +80°C±5°C

Low Temperature Storage

Duration = 96 hours,

Non-operating

Temperature = -30°C±5°C

High Temperature Operation

Duration = 96 hours,

Operating

Temperature = +70°C±5°C

Low Temperature Operation

Duration = 96 hours,

Operating

Temperature = -20°C±5°C

Thermal Shock

10 cycle of

Non-operating

-30°C (30min)  Room Temp. (<5min) 

+80°C (30min)  Room Temp. (<5min)

Vibration

50Hz, 2~3mm, Duration = 2 hours

Non-operating

Temperature = Room Temp.

Drop Test

Drop form 60cm above ground

Non-operating

(whole package with same weight)

4-faces, 6-edge, 2-corner

Note:

*1. After the test, keep the test sample at room temperature for 2hours (no condensation).

There should no failure of display quality and appearance.

There should not have any abnormality of functions.

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