4DLCD-43480272-IPS

General Specification

4DLCD-43480272-IPS is a colour active matrix LCD module incorporating amorphous silicon TFT IPS (Thin Film Transistor). It is composed of a colour TFT-LCD panel, driver IC, FPC and a backlight unit with/without a Resistive/Capacitive Touch Panel (RTP or CTP), and with/without Cover Lens Bezel (CLB). The module display area contains 480 x 272 pixels. This product accords with RoHS environmental criteria.

Part Number Details:

4DLCD - 4D Systems LCD Display

43480272 - 4.3-inch, 480 x 272 Resolution

IPS - In-Plane Switching

RTP - Resistive Touch

CTP - Capacitive Touch

CLB - Cover Lens Bezel

4DLCD-43480272-IPS

Note

RoHS compliant
LCD weight tolerance: ± 5%.

ITEM	CONTENTS	UNIT
LCD Type	TFT / Transmissive / IPS
Size	4.3	Inch
Viewing Direction	ALL
Display Mode	Normally Black
LCD (W × H × T)	4DLCD-43480272-IPS: 105.50 x 67.20 x 2.90	mm
	4DLCD-43480272-IPS-RTP: 105.50 x 67.20 x 4.10
	4DLCD-43480272-IPS-CTP: 105.50 x 67.20 x 4.42
	4DLCD-43480272-IPS-CTP-CLB: 123.04 x 84.46 x 4.42 (Including CLB)
Active Area (W × H)	95.04 × 53.856	mm
Dot Pitch (W × H)	0.198 × 0.198	mm
Number of Dots (Pixels)	480 (RGB) × 272
Driver IC	Source: SC7283
Backlight Type	10 LEDs
Surface Luminance	4DLCD-43480272-IPS: 600 (typical)	cd/m2
	4DLCD-43480272-IPS-RTP: 510 (typical)
	4DLCD-43480272-IPS-CTP: 540 (typical)
	4DLCD-43480272-IPS-CTP-CLB: 540(typical)
Interface Type	Parallel RGB 16/24-bit
Color Depth	16.7M
Pixel Arrangement	RGB Vertical Stripe
Surface Treatment	AG
Input Voltage	3.3 (typical)	V
With/Without TP (Touch Panel)	4DLCD-43480272-IPS – Without TP 4DLCD-43480272-IPS-RTP – With Resistive Touch 4DLCD-43480272-IPS-CTP – With Capacitive Touch 4DLCD-43480272-IPS-CTP-CLB – With Capacitive Touch and Cover Lens Bezel
Weight	4DLCD-43480272-IPS: 48.0	g
	4DLCD-43480272-IPS-RTP: 62.2
	4DLCD-43480272-IPS-CTP: 69.0
	4DLCD-43480272-IPS-CTP-CLB: 73.0

TFT LCD Display Drawing (Non-Touch Version)

TFT LCD Display Drawing (Resistive Touch Version)

TFT LCD Display Drawing (Capacitive Touch Version)

TFT LCD Display Drawing (Capacitive Touch Version with Cover Lens Bezel)

Absolute Maximum Ratings

PARAMETER	SYMBOL	MIN	MAX	UNIT
Supply Voltage for LCD Logic	VDD/VCC	-0.3	4.0	V
Supply Voltage for TP Logic	VDD/VCC-VSS	-	3.6	V
Input Voltage for Logic	VIN	VSS-0.5	VDD	V
LED forward voltage (each LED)	IF	-	25	mA
Operating Temperature	TOP	-20	70	°C
Storage Temperature	TST	-30	80	°C
Humidity	RH	-	90% (Max60°C)	RH

Electrical Characteristics

PARAMETER	SYMBOL	MIN	TYP	MAX	UNIT
Power Voltage	VDD/DCC	2.6	3.3	3.6	V
Input Current	IVDD	-	13	-	mA
Input Voltage ‘H’ Level	VIH	0.7 VDD	-	VDD	V
Input Voltage ‘L’ Level	VIL	0	-	0.3 VDD	V

Electro-Optical Characteristics

ITEM	SYM	CONDITION	MIN	TYP	MAX	UNIT	REMARKS
Response Time	Tr+Tf	θ=0	-	30	40	ms	see figure
Contrast Ratio	Cr	°	-	800	-	-	see figure
Luminance Uniformity	δ WHITE	∅=0	-	80	-	%	see figure
Surface Luminance	Lv	4DLCD-43480272	-	600	-	cd/m2	see figure
		4DLCD-43480272-RTP	-	510	-	cd/m2
		4DLCD-43480272-CTP	-	540	-	cd/m2
		4DLCD-43480272-CTP-CLB	-	540	-	cd/m2
Viewing Angle Range	θ	∅ = 90°	70	80	-	deg	see figure
	θ	∅ = 270°	70	80	-	deg
	θ	∅ = 0°	70	80	-	deg
	θ	∅ = 180°	70	80	-	deg
CIE (x,y) Cromacity	Red: x			0.629
	Red: y			0.326
	Green: x	θ=0°		0.337
	Green: y	∅=0°	-0.1	0.546	+0.1		see figure
	Blue: x	Ta=25		0.136
	Blue: y			0.142
	White: x			0.320
	White: y			0.345

Backlight Characteristics

PARAMETER	SYMBOL	MIN	TYP	MAX	UNIT
Voltage for LED backlight (Each LED)	Vl	3.0	3.2	3.4	V
Voltage for LED backlight (entire String – 10 LEDs)	VlSTRING	15	16	17	mA
Current for LED backlight (Each LED)	Il	-	20	30	mA
Current for LED backlight (entire String – 10 LEDs)	IlSTRING	-	20	30	mA
LED Lifetime (50% of original brightness)	-	30000	-	-	Hrs

Note

The LED lifetime is defined as the module brightness decreasing to 50% original brightness at Ta=25°C.

Contrast Ratio(CR) is defined mathematically as below, for more information see figure.

$Contrast Ratio$
Surface luminance is the LCD surface from the surface with all pixels displaying white. For more information, see figure.

$Surface Luminance$
The uniformity in surface luminance δ WHITE is determined by measuring luminance at each test position 1 through 5, and then dividing the maximum luminance of 5 points luminance by the minimum luminance of 5 points luminance. For more information, see figure.

$δ WHITE$
Response time is the time required for the display to transition from white to black (Rise Time, Tr) and from black to white (Decay Time, Tf). For additional information see figure. The test equipment is the Autronic-Melchers ConoScope series.
CIE (x, y) chromaticity, the x and y value is determined by measuring luminance at each test position 1 through 5, and then making the average value.
Viewing angle is the angle at which the contrast ratio is greater than 2. For the TFT module, the contrast ratio is greater than 10. The angles are determined for the horizontal or x-axis and the vertical or y-axis to the z-axis which is normal to the LCD surface. For more information, see figure.
For viewing angle and response time testing, the testing data is based on the Autronic-Melchers ConoScope series. Instruments for Contrast Ratio, Surface Luminance, Luminance Uniformity, and CIE the test data is based on TOPCONs BM-5 photodetector.

Measuring method for Contrast ratio, surface luminance, Luminance uniformity, CIE (x, y) chromaticity

Interface Descriptions

LCD Interface

LCD Interface Descriptions

LCD Interface

PIN NO.	SYMBOL	DESCRIPTION	REMARK
1	LED-	Cathode of LED Backlight
2	LED+	Anode of LED Backlight
3	GND	Ground
4	DVDD	Power supply
5	R0	Red data input R0	Note 1
6	R1	Red data input R1	Note 1
7	R2	Red data input R2	Note 1
8	R3	Red data input R3	Note 1
9	R4	Red data input R4	Note 1
10	R5	Red data input R5	Note 1
11	R6	Red data input R6	Note 1
12	R7	Red data input R7	Note 1
13	G0	Green data input G0	Note 1
14	G1	Green data input G1	Note 1
15	G2	Green data input G2	Note 1
16	G3	Green data input G3	Note 1
17	G4	Green data input G4	Note 1
18	G5	Green data input G5	Note 1
19	G6	Green data input G6	Note 1
20	G7	Green data input G7	Note 1
21	B0	Blue data input B0	Note 1
22	B1	Blue data input B1	Note 1
23	B2	Blue data input B2	Note 1
24	B3	Blue data input B3	Note 1
25	B4	Blue data input B4	Note 1
26	B5	Blue data input B5	Note 1
27	B6	Blue data input B6	Note 1
28	B7	Blue data input B7	Note 1
29	GND	Ground
30	DCLK	Clock for input data. Data latched rising/falling edge of this signal. Default is falling edge.
31	DISP	Standby mode control. (Normally pull high) STBYB=”L”, enter standby mode for power saving. Timing controller source driver will turn off, all outputs are Hi-Z. STBYB=”H”, normal operation.
32	HS	Horizontal sync input
33	VS	Vertical sync input
34	DE	Input data enable control. When DE mode, active High to enable data input (Normally pull low)
35	NC	No Connection
36	GND	Ground
37	XR/NC	The touch panel X right pin (RTP only, NC for other touch types)	Note 2
38	YD/NC	The touch panel Y down pin (RTP only, NC for other touch types)	Note 2
39	XL/NC	The touch panel X left pin (RTP only, NC for other touch types)	Note 2
40	YU/NC	The touch panel Y up pin (RTP only, NC for other touch types)	Note 2

Note

For applications that use less than 24 bits, pins are tied to the ground to reduce the total bits used.
Pins 37, 38, 39 and, 40 are only applicable to touchscreen displays (4DLCD-xxxxxxxx-RTP).

CTP Interface

The Capacitive Touch is driven by a Focaltech FT5446 capacitive touch driver IC, which utilizes an I2C interface, and is capable of 5-point touch.

Capacitive Touch Interface

PIN NO.	SYMBOL	DESCRIPTION	REMARK
1	NC	No Connect	Only connected to the CTP Panel, not connected to the LCD itself
2	NC	No Connect
3	RST	Reset pin
4	GND	Ground
5	INT	Interrupt signal from CTP
6	SDA	I2C SDA
7	SCL	I2C SCL	N/A for Non-touch and RTP models.
8	GND	Ground
9	GND	Ground
10	VDD	Power Supply (3.3V)

Backlight Example Circuit

The backlight circuit of this LCD needs an appropriate backlight driver. It can not be simply driven directly by a 3.3V or 5.0V supply like smaller displays, this is because of the number of LEDs connected in series and parallel, which is known as an LED String. A backlight driver is required to boost the voltage from the input supply to the requirements for the LED string.

There are many backlight driver ICs on the market. Some examples are:

Texas Instruments TPS61165
Texas Instruments TPS61080
On-Semi FAN5333B

On selecting the backlight driver, ensure it is capable of driving the number of LEDs in the string featured in this display, and it supports the input voltage you are looking to supply. Often 3.3V or 5V is possible to supply into the backlight drivers, and it will boost it to the required output based on the requirements of the leds. The current can then be set with a resistor. Please refer to the datasheet for the selected Driver IC of your choice.

In this example, the TPS61165 is depicted.

Backlight Example Circuit

The RSet calculation is found in the Datasheet for the backlight driver. Each one will vary, as well as the circuit and the components required. Please refer to their datasheets.

Refer to the Backlight Characteristics section for information specific to the backlight requirements, as well as the drawing of the display to see the configuration of the backlight LED string.

LCD Timing Details

Timing Chart

Note

Timing parameter (VDD=3.3V, GND=0V, Ta=25˚C)

Timing Chart

PARAMETER	SYMBOL	MIN	TYP	MAX	UNIT	CONDITION
CLK Clock Time	Tclk	1/Max(FCLK)	-	1/Min(FCLK)	ns	-
CLK Pulse Duty	Tchw	40	50	60	%	TCLK
HSYNC to CLK	Thc	-	-	1	CLK	-
HSYNC Width	Thwh	1	-	-	CLK	-
VSYNC Width	Tvwh	1	-	-	ns	-
HSYNC Period Time	Th	60	63.56	67	ns	-
VSYNC Set-up Time	Tvst	12	-	-	ns	-
VSYNC Hold Time	Tvhd	12	-	-	ns	-
HSYNC Setup Time	Thst	12	-	-	ns	-
HSYNC Hold Time	Thhd	12	-	-	ns	-
Data Set-up Time	Tdsu	12	-	-	ns	D00~D23 to CLK
Data Hold Time	Tdhd	12	-	-	ns	D00~D23 to CLK
DEN Set-up Time	Tesu	12	-	-	ns	DEN to CLK

Timing Characteristic

ITEM	SYMBOL	MIN	TYP	MAX	UNIT
DCLK Frequency	Fclk	8	9	12	MHz
DCLK Period	Tclk	83	111	125	Ns
Hsync	Period Time: Th	485	531	598	DCLK
	Display Period: Thdisp	-	480	-	DCLK	By H BLANKING setting
	Back Porch: Thbp	3	43	-	DCLK
	Front Porch: Thfp	2	8	75	DCLK
	Pulse Width: Thw	2	4	43	DCLK
Vsync	Period Time: Tv	276	292	321	H
	Display Period: Tvdisp	-	272	-	H
	Back Porch: Thbp	2	12	12	H	By V BLANKING setting
	Front Porch: Thfp	2	8	37	H
	Pulse Width: Thw	2	4	12	H

SYNC Mode Timing Diagram

Mode Timing

SYNC-DE Mode Timing Diagram

De mode Timing

Reset Timing

SIGNAL	SYMBOL	PARAMETER	MIN	MAX	UNIT
RESET	tRW	Reset low pulse width	40	-	us
	tRT	Reset complete time	-	5 (note1)	ms
			-	120 (note2)	ms

Note

When reset applied during SLPIN mode
When reset applied during SLPOUT mode.

Power On Sequence

Power On

Power-off Sequence

Power off

Note

When normally-black LC is used, please send a black pattern to discharge the panel.
When normally-white LC is used, please send a white pattern to discharge the panel.

Reliability Test

No.	SYMBOL	TEST CONDITION	REMARK
1	High Temperature Storage	80˚C±2˚C 96H Restore 2H at 25˚C Power off
2	Low Temperature Storage	-30˚C±2˚C 96H Restore 2H at 25˚C Power off
3	High Temperature Operation	70˚C±2˚C 96H Power on
4	Low Temperature Operation	-20˚C±2˚C 96H Power on
5	High Temperature & Humidity Operation	60˚C±2˚C 90%RH 96H Power on	After test cosmetic and electrical defects should not happen.
6	Temperature Cycle	-20˚C←→25˚C←→70˚C 30min 5min 30min After 10 cycles, restore 2H at 25˚C Power off
7	Vibration Test	10Hz~150Hz, 100m/s², 120min
8	Shock Test	Half-sinewave, 300m/s², 11ms

Note

The Displays are of the highest rated 'Grade A', which allows for 0-4 defective pixels. A defective pixel could be solid Black (Dead), White, Red, Green or Blue.

Precautions for Using LCD Modules

Handing Precautions

The display panel is made of glass and a polarizer. The glass is fragile. It tends to be chipped during handling, especially on the edges. Please avoid dropping or jarring. Please be careful not subject it to a mechanical shock by dropping it on impact.
If the display panel is damaged and the liquid crystal substance leaks out, be sure not to get any of it in your mouth. If the substance contacts your skin or clothes, wash it off using soap and water.
Do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary. Do not touch the display with bare hands. This will stain the display area and degrade insulation between terminals (some cosmetics are determined by the polarizer).
The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle this polarizer carefully. Do not touch, push or rub the exposed polarizer with anything harder than an HB pencil lead (e.g., glass, tweezers, etc.). Do not put or attach anything to the display area to avoid leaving marks on it. Condensation on the surface and contact with terminals due to cold temperatures will damage, stain or contaminate the polarizer. After products are tested at low temperatures they must be warmed up in a container before coming into contact with room-temperature air.
If the display surface becomes contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If it is heavily contaminated, moisten the cloth with one of the following solvents
- Isopropyl alcohol
- Ethyl alcohol Do not scrub hard as it might damage the display surface.
Solvents other than those mentioned above may damage the polarizer. Especially the following.
- Water
- Ketone
- Aromatic solvents Wipe off saliva or water drops immediately, contact with water over a long period may cause deformation or color fading. Avoid contact with oil and fat.
Take necessary precautions to minimize corrosion of the electrode. Corrosion of the electrodes is accelerated by water droplets, moisture condensation or current flow in a high-humidity environment.
Install the LCD Module by using the mounting holes. When mounting the LCD module, make sure it is free of twisting, warping and distortion. In particular, do not forcibly pull or bend the I/O cable or the backlight cable.
Do not attempt to disassemble or process the LCD module.
NC terminal should be open. Do not connect anything to it.
If the logic circuit power is off, do not apply input signals.
Control Electro-Static Discharge. Since this module uses a CMOS LSI, the same careful attention should be paid to electrostatic discharge as for an ordinary CMOS IC. To prevent the destruction of the elements by static electricity, ensure that an optimum work environment is maintained.
- Before removing the LCM from its packing case or incorporating it into a set, be sure that the module and your body have the same electric potential. Be sure to ground your body when handling the LCD modules.
- To reduce the amount of static electricity generated, do not conduct assembly and other work under dry conditions. To reduce the generation of static electricity, please ensure that the air in the work environment is not too dry. Relative humidity of 50%-60% is recommended. As much as possible, make the electric potential of your work clothes and that of the workbench the ground potential.
- The LCD module is coated with a film to protect the display surface. Be careful when peeling off this protective film since static electricity may be generated.
Since the LCM has been assembled and adjusted with a high degree of precision, avoid applying excessive shocks to the module or making any alterations or modifications to it.
- Do not alter, modify or change the shape of the tab on the metal frame.
- Do not make extra holes on the printed circuit board, modify its shape or change the positions of the components to be attached.
- Do not damage or modify the pattern writing on the printed circuit board.
- Do not modify the zebra rubber strip (conductive rubber) or heat seal connector.
- Do not drop, bend or twist the LCM.

Storage Precautions

When storing the LCD modules, the following precautions are necessary.

Store them in a sealed polyethylene bag. If properly sealed, there is no need for the desiccant.
Store them in a dark place. Do not expose to sunlight or fluorescent light, keep the temperature between 0℃ and 35℃, and keep the relative humidity between 40%RH and 60%RH.
The polarizer surface should not come in contact with any other objects. (We advise you to store them in an anti-static electricity container in which they were shipped. Some Liquid crystals solidify under low temperatures (below the storage temperature range) leading to defective orientation or the generation of air bubbles (black or white). Air bubbles may also be generated if the module is subjected to low temperatures.
If the LCD modules have been operating for a long time showing the same display patterns, the display patterns may remain on the screen as ghost images and a slight contrast irregularity may also appear. A normal operating status can be regained by suspending use for some time. It should be noted that this phenomenon does not adversely affect performance reliability.
To minimize the performance degradation of the LCD modules resulting from the destruction caused by static electricity etc., please avoid holding the following sections when handling the modules’
- The exposed area of the printed circuit board
- Terminal electrode sections

Revision History

Document Revision

REVISION	DATE	COMMENT
1.0	10/09/2020	Initial Version
1.1	22/02/2021	Information clarification / improvement. Updated LED voltage/current information
1.2	09/06/2021	Updating viewing angles and brightness values which were incorrect.
1.3	24/06/2021	Added logic current consumption data, added backlight circuit example.
1.4	20/01/2023	Modified datasheet for web-based documentation