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Home > Products > TFT LCD > 1.54 Inch TFT LCD > 1.54 Inch LCD Display

1.54 Inch LCD Display

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Model No.154008S0-LCM

Supply Ability & Additional Informations

Payment TypeT/T

A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven[clarification needed] LCDs with a few segments.

TFT LCDs are used in appliances including television sets, computer monitors, mobile phones, handheld devices, video game systems, personal digital assistants, navigation systems, projectors, and car dashboards.


Img 20180827 224152Img 20180827 224235Img 20180827 224220Img 20180827 224205


1. Introduction

1.1 Scope of application

This specification applies to the LCD module that is supplied by

TIAN XIAN WEI TECHNOLOGY CO., LTD.

LCD specification: Dots 240xRGBx240

As to basic specification of the driver IC, refer to the IC (Sitronix:ST7789V)

specification and data book.

All material & processing of the LCD module should be Lead Free.

1.2 TFT features:

Structure: TFT PANNEL+IC +FPC+BL;

IPS Type LCD

240 dot-segment and 240 dot-common outputs;

65K Color can be selected by software;

White LED back light;

MCU-8bit interface

1.3 Applications:

Pos

Pda

Electronic cigarettes

Law enforcement equipment,

walkie-talkie,

household appliances

2. LCM General specification

ITEM

Sandard value

Unit

LCD Type

Normally black

--

Drive element

TFT active matrix

--

Number of pixels

240*3RGB(H)X240 (V)

Dots

Pixel arrangement

RGB stripe

--

Pixel Pitch (W*H)

0.153(H) x0.153 (V)

mm

Active area

27.72(H) x 27.72(V)

mm

Module Size(W*H*T)

31.52(H) x33.72(V) x 2.03(D)

-

Viewing direction

ALL OCLOCK

TFT Driver IC

ST7789V

-

TFT interface

MCU_8BIT Interface

-

Approx. Weight

TBD

g

3.Absolute Maximum Rating

Characteristics

Symbol

Min.

Max.

Unit

LCM Operating Temperature

TOPR

-20

+70

°C

LCM Storage Temperature

TSTG

-30

+80

°C

TP Operating Temperature & Humidity(20% ~ 90%RH)

TOPR

°C

TP SStorage Temperature & Humidity(20% ~ 90%RH)

TSTG

°C

Humidity

RH

-

90

%

4.Electrical Characteristics

4.1 TFT DC Characteristics

Characteristics

Symbol

Min.

Typ.

Max.

Unit

Supply Voltage for I/O

VDDIO

1.65

1.8

3.3

V

Supply Voltage for(DC/DC)

VDD

2.7

2.8

3.3

V

Supply Voltage for(DC/DC)

AVDD

V

Supply Voltage for(DC/DC)

AVEE

V

Current Consumption

IDD

-

TBD

-

mA

IDD-SLEEP

TBD

uA

4.2Back-Light Unit Characeristics

The back-light system is an edge-lighting type with 3 white LEDs. The characteristics of the back-light are shown in the following tables.

Characteristics

Symbol

Min.

Type

Max.

Unit

Notes

Forward Voltage

VF

2.9

-

3.2

V

-

Forward current

IF

45

60

mA

-

Luminance(With LCD)

Lv

450

cd/m2

-

LED life time

N/A

----

30,000

--

Hr

Note 1

Note:

(1) The “LED life time” is defined as the module brightness decrease to 50% of original brightness at IL=20mA/LED. The LED life time could be decreased if operating IL is larger than 25mA/LED.

Backlight circuit diagram shown in below:

5. Module Function Description

5.1 LCM Pin Descriptions

Pin No.

Symbol

Description

1

LEDA

BACKLIGHT +

2

LEDK

BACKLIGHT-

3

VCI

POWER SUPPLY(2.8V)

4

IOVCC

DIGITAL VOLTAGE.( 1.8V/2.8v)

5

GND

GROUND

6

RESET

Hardware reset

7

CS

Chip select

8

RS

Register select input pin

9

WR

Write enable clock input pin

10

RD

Read enable clock input pin

11

GND

GROUND

12-20

DB0~ DB7

Parallel data I/O.

6. Timing Characteristics

7.Optical Characteristics

Items

Symbol

Condition

Specifications

Unit

All left side

data are based

on TIAN XIAN WEI product

reference only

Min.

Typ.

Max.

Contrast Ratio

CR

640

800

-

-

Response Time

TBRB

-

16

21

ms

TBFB

-

19

24

ms

Chromaticity

Red

XBRB

/

-

YBRB

/

-

Green

XBGB

/

-

YBGB

/

-

Blue

XBBB

/

-

YBBB

/

-

White

XBWB

0.28

0.31

0.34

-

YBWB

0.29

0.32

0.35

-

Viewing angle

Hor.

f1(3 oclock)

Center

CR≥10

-

80

-

deg.

f2(9 oclock)

-

80

-

Ver.

q2(12 oclock)

-

80

-

q1(6 oclock)

-

80

-

Uniformity

---

%

Note 1: Definition of Contrast Ratio (CR):

The contrast ratio can be calculated by the following expression.

Contrast Ratio (CR) = L63 / L0

L63: Luminance of gray level 63

L0: Luminance of gray level 0

CR = CR (10)

CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note 5.

Note 2: Definition of Response Time (TR, TF):

Note 3: Viewing Angle


The above “Viewing Angle” is the measuring position with Largest Contrast Ratio; not for good

image quality. View Direction for good image quality is 6 O’clock. Module maker can increase

the “Viewing Angle” by applying Wide View Film.

Note 4: Measurement Set-Up:

The LCD module should be stabilized at a given temperature for 20 minutes to avoid abrupt

temperature change during measuring. In order to stabilize the luminance, the measurement

should be executed after lighting Backlight for 20 minutes in a windless room.

8. Reliability Test Item

No.

Test Item

Test Condition

Notes

1

High Temp. Storage

+80°C / 240H

1. Functional test isOK.

Missing Segment,short, unclear segment non-display,display abnormally and liquid crystal leakare un-allowed.

2. No low

temperature bubbles,end seal loose andfall, frame rainbow.

1. Function test is

OK.

2. No glass crack,chipped glass, endseal loose and fall,

epoxy frame crackand so on.

3. No structure loose

and fall

2

Low Temp. Storage

-30°C / 240H

3

High Tempe. Operating

+70°C / 240H

4

Low Tempe. Operating

-20°C / 240H

5

High Temperature /Humidity storage

50+5°C x 90%RH / 48H

6

Thermal and cold

shock

Static state-30℃(1 hour~80℃ (1 hour~ -30℃(1 hour),packaging10 cycles

7

Vibration Test

Frequency: 10Hz~55Hz

Amplitude:1.0mm, 2 hours for each direction of X, Y

8

Dropping test

Pack products into the carton box.Drop it from 80cm height to ground.Once for each side of the carton

9. Packing Method----TBD

- END -





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