深圳秦唐盛世科技有限公司
LCD MODULE

SPECIFICATION

Customer:

Version:QT154H2201
2018-03-022
1.0

Approved by

Reviewed byModel Name:
Date:

Prepared by

For Customer’s AcceptanceApproved byCommentContents
1.

General Specifications........................................................................................................................ 1

2.

Pin Assignments...................................................................................................................................2

3.

Electrical Specifications...................................................................................................................... 3
3.1.

Absolute Maximum Rating......................................................................................................3

3.2.

Typical Operation Conditions................................................................................................. 3

3.3.

Backlight Unit............................................................................................................................5

4.

Optical Specifications.......................................................................................................................... 5

5.

Reliability Test Items..........................................................................................................................106.

Handling Precautions........................................................................................................................ 11
6.1.

Safety....................................................................................................................................... 116.2.

Handling...................................................................................................................................116.3.

Static Electricity...................................................................................................................... 116.4.

Storage.................................................................................................................................... 11

6.5.

Cleaning...................................................................................................................................117.

Mechanical Drawing.......................................................................................................................... 128.

Package Drawing...............................................................................................................................13

1.

General Specifications
No.

Item

Specification

Unit

Remark1

LCD Size

1.54”

inch-

2

Panel Typea-si TFT--

3

Resolution

240x(RGB)x240

pixel

-

4

Display Mode

Normally Black,Transmissive--5

Display Number of Colors

262K--

6

Viewing Direction

ALL o’clock-

Note 1

7

Contrast Ratio

300--

8

Luminance

180

cd/m2

9

Module Size

31.52(W)x35.1(L)x1.72(T)mm

Note 1

12Weight

TBDg-

13

Driver IC

ST7789V--

14

Driver IC RAM Size240x16x240bit-15

Light Source

3 White LED in Parallel--

16Interface

8 Bit MCU/4L SPI Interface--17

Operating Temperature-20~70℃-

18

Storage Temperature-30~80℃-

Note 1: Please refer to the mechanical drawing.

Pin Assignments
Pin No.

SymbolI/O

Function

Remark

1

LEDA

P

LED+-

2

LEDK

P

LED--

3

IM2I-

4

IM1I-

5IM0I-

6

VCI(2.8V)

P

7DB7-

8DB6-

9DB5-

10

DB4-

11

DB312

DB213DB1-

14DB0-

15RDI-

16WRI-

17RSI18CSI

19TEO

20RESETI

21SDA

I/O

serial input/output signal in serial interface mode.

22GND

PGroundPower Supply(2.8V)

I/O-DATA BUS--Chip Selection Pin-Low Enable.
Tearing effect output pin to synchronies MCU toframe rate, activatedby S/W command.
This signal will reset the device and it must be
applied to properly
initialize the chip.

2.

Electrical Specifications

2.1.

Absolute Maximum Rating(Ta=+25℃)
Item

TFT Module
Backlight Unit

SymbolValues
Min.

Max.

Unit

RemarkI/O Circuit Supply Voltage

VDD-0.3

4.6V

Note 1

Analog/Logic Supply Voltage

VCI-0.3

4.6

V

Note 1Current

IB-20mA

Note 2

Power Consumption

PBL-60mW

Note 2

Note1: Permanent damage to the device may occur if maximum values are exceeded or reverse voltage
is applied.
Note2: Without LED driver IC, please refer to 1.54.

2.2.

Typical Operation Conditions

3.2.1 DC Characteristics
Item(Ta=+25℃, VCI=+2.8V)
SymbolMin.

Values
Typ.

Max.

Unit

Logic Supply Voltage

VDD

1.65

2.8

3.3

VAnalog Supply Voltage

VCI

2.6

2.8

3.3

V

Input High Voltage

VIH

0.7VDD-

VDD

V

Input Low Voltage

VIL

00.3VDDV

Output High Voltage

VOH

0.8VDD-VDD

V

Output Low Voltage

VOL0-0.2VDD

V

Frame Frequency

fFRAME-65-HzRemarkTa=25℃

Note: To prevent IC latch up or DC operation in LCD panel, the power on/off sequence should
follow the driver IC specification.
3.2.2 Current Consumption
Item

SymbolValues
Typ.
Max.

Unit

RemarkMCU Interfsce (8080 16-bit parallel Interface)
Still Mode
Sleep Mode

VDD

-TBD

uA

VCI-TBD

mA

VDD

-TBD

uA

VCI-

TBD

uANote1
Note1, Note3

Note1: Test Condition
Typ:

VDD=2.8V

Max:

VDD=3.0V

VCI=2.8V

VCI=3.3V

Display Pattern: 8 Color Bar

Display: Pattern:All Pixel Black

Frame Rate=80Hz at Line Inversion

Frame Rate=80Hz at Line Inversion

Operating Temperature: 25℃

Operating Temperature: 25℃

Typ. current check pattern:

Max. current check pattern:

8-Color BarBlack

Note2: In the standby mode, all the internal display operations are suspended including the internal R-C
oscillator.
Note3: In the sleep mode, all the internal display operations are suspended except the internal R-Coscillator.

Backlight Unit
The backlight system is an edge lighting type with 3white LED.
(Ta=+25℃)
Item

ValuesSymbol

Min.

Typ.

Max.

Unit

RemarkCurrent

IB-45-mA

Note 1

Power Consumption

PBL-

135-mW

Note 2

Note1: 3 LEDs are connected in parallel; each LED’s current consumption is 20mA.
Note2: Where IB= 45mA, PBL = IB x VBL, VBL is backlight forward voltage

3.

Optical Specifications(Ta=+25℃, VCI=2.8V, VDD=1.8V, IB=46mA)
Item
Viewing
Angle
Range

SymbolLeftRightθLθRTopθTBottomθB

Condition

CR≧10
Normalθ=Ф=0°
Normalθ=Ф=0°
Normalθ=Ф=0°

Values

Unit

Remarkdegree

Note 1,250ms

Note 2,3300--

Note 2,4200-

cd/m2

Note 2,5Min.

Typ.

Max.

－－

4545-

－50-

－

20-

-

30

200
160

Response Time

Ton +Toff

Contrast Ratio

CR

Luminance

L

Flicker--

No Visible-

Note 8Crosstalk--

No Visible-

Note 9White
Color
Chromaticity(CIE1931)

Red
GreenBlue

Color Gamut
Luminance Uniformity

Wx
Wy
Rx
RyGx
Gy
Bx
By

－－－－－

0.30
0.31
0.59
0.32
0.310.56
0.150.08－－－－－－－－

Normalθ=Ф=0°-

Note 2,6NTSC

CIE1931-58-%-UL

Normalθ=Ф=0°－80-%

Note 2,7－－

Note 1: Definition of viewing angle
Normal line
θ=Ф=0˚θT

12 o’clock direction
Ф=90˚

θB
θL θR

Ф=180˚Ф=0˚Active Area
LCD Panel
Ф=270˚
6 o’clock direction
range
Fig. 1 Definition of viewing angle
TopLeft

A/A Center

Right

BottomFig. 2 Definition of viewing angle for display

Note 2: Definition of optical measurement system
The optical characteristics should be measured in a dark room with ambient temperature Ta=+25.The
optical properties are measured at the center point of the LCD screen after 5 minutes operation. (Equipment:
Photo detector TOPCON BM-5A or BM-7 /Field of view: 1˚ /Height: 500mm.)

Photo detector
Normal line
θ=Ф=0˚

12 o’clock direction
Ф=90˚

500mm

Ф=180˚Ф=0˚Active Area
LCD Panel
Ф=270˚
6 o’clock direction
Fig. 3 Optical measurement system setup
Note 3: Definition of response time
The response time is defined as the LCD optical switching time interval between “White” state and“Black” state. Rise time (Ton) is the time between photo detector output intensity changed from 90% to 10%,and fall time (Toff) is the time between photo detector output intensity changed from 10% to 90%.

White (TFT OFF)Black (TFT ON)

White (TFT OFF)

Photo detector output(Relative value)

100%
90%10%0%Ton
Fig. 4 Definition of response timeToffNote 4: Definition of contrast ratio

Contrast ratio (CR) 

Luminance measured when LCD on the " White" state
Luminance measured when LCD on the " Black" stateNote 5: Definition of luminance
Measured at the center area of the panel when LCD panel is driven at “white” state.
Note 6: Definition of color chromaticity (CIE1931)
Color coordinates measured at the center point of LCD when panel is driven at “White”, “Red”, “Green”
and “Blue” state respectively.
Note 7: Definition of luminance uniformity
To test for uniformity, the tested area is divided into 3 rows and 3 columns. The measurement spot is placedat the center of each circle as below.

L min
Luminance Uniformity (UL) =L max
L-------Active area lengthW----- Active area width
W/3

W/3

L/3

L

L/3

L/6

W/6

W

Fig. 5 Definition of luminance uniformity

L max : The measured maximum luminance of all measurement position.
L min : The measured minimum luminance of all measurement position.

Note 8: Definition of Flicker
Flicker is the pattern usually used to describe the visual sensation produced by a rapidly varying lightintensity. There should be no visible flicker in normal direction of the display when the following figure areloaded.

Note9: Definition of crosstalkFig.6 Flicker checker pattern

There should be no visible in normal direction of the display when the following figures are loaded.

Fig.7 Crosstalk checker pattern

4.

Reliability Test Items
Test Items

Test Conditions

RemarkHigh Temperature Storage+80℃±3℃ for 240 hours-

Low Temperature Storage-30℃±3℃ for 240 hours-

High Temperature
Operation+70℃±3℃ for 240 hours-

Low Temperature
Operation-20℃±3℃ for 240 hours-

High Temperature andHumidity Operation+60℃±3℃, 90%±3%RH max. for 240 hours-

Thermal Shock-30℃/0.5h ~ +80℃/0.5h for a total 100 cycles,
Start with cold temp and end with high temp

-Vibration Test

Frequency range:10~55Hz
Stoke:1.5mm
Sweep:10Hz~55Hz~10Hz
2 hours for each direction of X. Y. Z.
(6 hours for total)-

Mechanical Shock

100G 6ms,±X, ±Y, ±Z 3 times for eachdirection-Package Vibration Test

Random Vibration :0.015G2/Hz from 5-200Hz, -6dB/Octave from200-500Hz
1 hour for each direction of X. Y. Z.
(3 hours for total)-Package Drop Test

Height :76cm(Weight≦10kg);
60cm(Weight>10kg)
1 corner, 3 edges, 6 surfaces-Electro Static Discharge± 2KV, Human Body Mode, 100pF/1500Ω

-Note1: During the display practical test under normal operation condition, there shall be no change, which
may affect display function.
Note2: Before functional check, the test sample requires a 2 hours storage time at room temperature.

5.

Handling Precautions

5.1.

Safety5.1.1. The liquid crystal in the LCD is poisonous. DO NOT put it in your mouth. If theliquid crystal touches your skin or clothes, wash it off immediately using soap andwater.
5.2.

Handling

5.2.1. The LCD and touch panel is made of plate glass. DO NOT subject the panel tomechanical shock or to excessive force on its surface.
5.2.2. Do not handle the product by holding the flexible pattern portion in order to assure
the reliability
5.2.3. Transparency is an important factor for the touch panel. Please wear clear finger
sacks, gloves and mask to protect the touch panel from finger print or stain andalso hold the portion outside the view area when handling the touch panel.
5.2.4. Provide a space so that the panel does not come into contact with othercomponents.
5.2.5. To protect the product from external force, put a covering lens (acrylic board orsimilar board) and keep an appropriate gap between them.
5.2.6. Transparent electrodes may be disconnected if the panel is used underenvironmental conditions where dew condensation occurs.
5.2.7. Property of semiconductor devices may be affected when they are exposed to light,
possibly resulting in IC malfunctions.
5.2.8. To prevent such IC malfunctions, your design and mounting layout shall be done in
the way that the IC is not exposed to light in actual use.
5.3.

Static Electricity

5.3.1. Ground soldering iron tips, tools and testers when they are in operation.
5.3.2. Ground your body when handling the products.
5.3.3. Power on the LCD module BEFORE applying the voltage to the input terminals.
5.3.4. DO NOT apply voltage which exceeds the absolute maximum rating.
5.3.5. Store the products in an anti-electrostatic bag or container.
5.4.

Storage

5.4.1. Store the products in a dark place at +25℃±10℃ with low humidity (65%RH orless).
5.4.2. DO NOT store the products in an atmosphere containing organic solvents or
corrosive gas.
5.5.

Cleaning

5.5.1. DO NOT wipe the touch panel with dry cloth, as it may cause scratch.
5.5.2. Wipe off the stain on the product by using soft cloth moistened with ethanol. DO
Not allow ethanol to get in between the upper film and the bottom glass. It may
cause peeling issue or defective operation. Do not use any organic solvent or
detergent other than ethanol.

1.90±0.127.72(LCM.AA)
28.32(LCM.VA)
31.52±0.1(LCM.BL)
10.01±0.1

3.5035.10±0.1(LCM.BL)
28.32(LCM.VA)
27.72(LCM.AA)
2.24±0.1
25.00±0.1

K11.72±0.15(MAX)
0.30

240(RGB)*240
ALL .ClockA

Backlight Circuit

220.500.50

Mechanical Drawing
6.

V0

VER.
New Issue

原接口

REVISED RECORD

八位并口接法DATA

SPI4线串口接法