1.3 Inch LCD Display

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Basic Info

Payment Type:	T/T

Product Description

A liquid crystal display or LCD draws its definition from its name itself. It is a combination of two states of matter, the solid and the liquid. LCD uses a liquid crystal to produce a visible image. Liquid crystal displays are super-thin technology display screens that are generally used in laptop computer screens, TVs, cell phones, and portable video games. LCD’s technologies allow displays to be much thinner when compared to a cathode ray tube (CRT) technology.
Liquid crystal display is composed of several layers which include two polarized panel filters and electrodes. LCD technology is used for displaying the image in a notebook or some other electronic devices like mini computers. Light is projected from a lens on a layer of liquid crystal. This combination of colored light with the grayscale image of the crystal (formed as electric current flows through the crystal) forms the colored image. This image is then displayed on the screen.

Model: 130003S0
Resolution: 240*240
Viewing angle: IPS
Color: 65K
Features: high brightness, full viewing angle, ultra-thin design with integrated backlight, low power consumption, square structure, etc.
Application: smart wear, children's toys, cameras/smart speakers, medical equipment, digital electronics, etc.

ITEM	Sandard value	Unit
Model Number	130003S0
size	1.3	Inch
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) *0.153 (V)	mm
Active area	23.4(H) * 23.4(V)	mm
LCM Mechanical Outline Size(WHT)	26.2 29.15 1.9	mm
Viewing direction	ALL O’CLOCK	-
LCM Driver IC	ST7789V	-
LCM interface	MCU 8 Bit Interface	-
Lcm pin n count	24
Backlight leds	2	pcs
Backlight current	40	ma
Backligh voltage	3.2	v
Operating temperature	-20+70	℃
storage temperature	-30+80	℃
Lumens degrees	400	Cd/㎡

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;

262K Color can be selected by software;

White LED back light;

MCU 8 bit 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)	0.0975(H) x0.0975 (V)	mm
Active area	23.4(W) x23.4(H)	mm
Module Size(WHT)	26.16(W) x29.22(H) x1.9(D)	-
Viewing direction	ALL O’CLOCK
TFT Driver IC	ST7789V	-
TFT interface	MUC 8 BITInterface	-
Approx. Weight	TBD	g
Touch structure
Touch Driver IC		-
Touch Interface

3.Absolute Maximum Rating

Characteristics	Symbol	Min.	Max.	Unit
LCM Operating Temperature	T_OPR	-20	+70	°C
LCM Storage Temperature	T_STG	-30	+80	°C
TP Operating Temperature & Humidity(20% ~ 90%RH)	T_OPR			°C
TP SStorage Temperature & Humidity(20% ~ 90%RH)	T_STG			°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	I_DD	-	TBD	-	mA
Current Consumption	I_DD-SLEEP		TBD		uA

4.2Back-Light Unit Characeristics

The back-light system is an edge-lighting type with 2 white LEDs. The characteristics of the back-light are shown in the following tables.

Characteristics	Symbol	Min.	Type	Max.	Unit	Notes
Forward Voltage	V_F	2.9	-	3.2	V	-
Forward current	I_F	30	40		mA	-
Luminance(With LCD)	Lv	350	380	400	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 I_L=20mA/LED. The LED life time could be decreased if operating I_L is larger than 25mA/LED.

Backlight circuit diagram shown in below:

5. Module Function Description

5.1 LCM Pin Descriptions

1	LEDA	BACKLIGHT +
2	LEDK	BACKLIGHT-
3	GND	GROUND
4	VCI	POWER SUPPLY（2.8V）
5	IOVCC	POWER SUPPLY（1.8V）
6	IM1	IM1=’0’4-line 8bit serial I/F,SDA: in/out IM1=’1’80-8bit parallel I/F ,DB0-DB7
7	RESET	Hardware reset
8	CS	Chip selection pin
9	DCX/SCL	-Display data/command selection pin in parallel interface. -This pin is used to be serial interface clock. -DCX=’1’: display data or parameter. -DCX=’0’: command data. -If not used, please fix this pin at VDDI or DGND.
10	WR	Write enable in MCU parallel interface. Display data/command selection pin in 4-line serial interface. Second Data lane in 2 data lane serial interface. -If not used, please fix this pin at VDDI or DGND.
11	RD	Read enable in 8080 MCU parallel interface. -If not used, please fix this pin at VDDI or DGND.
12	SDA	SPI interface input/output pin.
13-20	DB0-DB7	Data bus.
21	TE	Tearing effect signal is used to synchronize MCU to frame memory
22	NC	NC
23	GND	GROUND
24	GND	GROUND

6. Timing Characteristics

6.1 80-system Bus Interface Timing Characteristics of IC

Table 8: Normal Write Mode (VCC = IOVCC=2.4~3.3V)

Figure 7. 4-line Serial interface Bus Timing

6.2 Reset Operation of IC

Table 9: Reset Timing Characteristics (VCC = IOVCC=2.4~3.3V)

Figure 8: Reset Timing

7.Optical Characteristics

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 / 120H	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 / 120H
3	High Tempe. Operating	+70°C / 120H
4	Low Tempe. Operating	-20°C / 120H
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），packaging， 10 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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