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Main image of TekGroAml 4-Inch Round 720x720 LCD Display Kit, Capacitive Touch, 60 Hz, HDMI Controller

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TekGroAml 4-Inch Round 720x720 LCD Display Kit, Capacitive Touch, 60 Hz, HDMI Controller

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Display: 4-inch round 720x720 IPS LCD, 60 Hz.
Touch: Capacitive Touch hardware for interactive gauges and control pages. Configure the host touch connection and coordinate mapping after video setup.
Connection: HDMI video input through the included controller board. USB 5 V input; supply rated above 1 A.
Power: USB 5 V input; supply rated above 1 A. Keep the exposed circuit board insulated from conductive mounting surfaces.
Included: 1 LCD screen, 1 controller board, 1 signal cable and 1 power cable.

Overview

Specs

Reviews

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Focuses on trading high-quality electronic products. We primarily sell display solutions such as TFT LCD, OLED, and AMOLED panels.

Our experienced sourcing and quality control teams work closely with international suppliers to deliver dependable products and responsive service.
mini round screen
mini round screen
mini square screen
Long Strip Screen with board
mini square screen with board
6.2 inch PC Case Display
7 inch 1280x800 Touch Monitor
Portable LCD monitors
16 inch 144HZ 2K IPS Monitor

4.0 Inch 720x720 IPS Round Touchscreen with HDMI Control Board

Screen size	4 inch
Video Input	Micro H/D
Power Port	Micro USB Port
Dimension	132.6 x 132.6 x 4(W×H×D)mm
Display Area	101.52x 101.52(W×H)mm

Brightness	300 cd/m²
Viewing Angle	85/85/85/85
Signal Interface	Mipi (1ch, 8-bit) , 31 pins
Feature	With Touch Function

Wide Applications

5-1

6-1

6-1

	TekGroAml 2.1 inch 480x480 400 nits Round LCD Display and Mini H/D Board \| fo...	TekGroAml 2.8 inch Mini IPS PC Case LCD Round Display,480x480 330 nits \| Circ...	3.4 Inch Round 330nit LCD Display & HDMI Board, 800x800 IPS Circular Screen \|...	TekGroAml 4 Inch Round LCD Display with Micro H/D Controller Board 720x720 \| ...

Customer Reviews	—	—	—	—
Price	—	—	—	—
Screen size	2.1 inch	2.8 inch	3.4 inch	4 inch
Video input	mini HDMI	mini HDMI	mini HDMI	micro HDMI
Brightness	300 nits	330 nits	330 nits	300 nits
Resolution	480x480	480x480	800x800	720x720

Windows Quick Setup

Display detection:Connect the module as a secondary monitor and open Windows display settings.
Resolution reference:Use 720 x 720 for 4-inch models.
Refresh rate:Set the refresh rate to 60Hz.
Screen arrangement:Place the round display beside the main monitor to avoid mouse cursor conflicts.
Custom mode If the native resolution is not detected automatically, create a custom mode at the selected model's native resolution and 60Hz in the graphics control panel.
Application use:Move the compatible dashboard, monitoring interface, control UI, or simulator panel to the round secondary display after activation.

Single-Board-Computer Setup Notes

Compatibility note:Suitable for compatible single-board-computer projects that support custom video output.
Recommended target:Use the selected model's native resolution at 60Hz when supported by the platform.
Resolution reference:Use 720 x 720 for 4-inch models.
Setup method :Use platform display settings or a supported custom output method to set the required output mode.
Reboot note:Reboot the system after saving the display configuration if required by the platform.
Check items:Display output should be validated first. For touch variants, confirm the host-side touch connection method independently from the video setup before release.

4.0 Inch 720x720 IPS Round Touchscreen with HDMI Control Board

Screen size	4 inch
Video Input	Micro H/D
Power Port	Micro USB Port
Dimension	132.6 x 132.6 x 4(W×H×D)mm
Display Area	101.52x 101.52(W×H)mm
Brightness	300 cd/m²
Viewing Angle	85/85/85/85
Signal Interface	Mipi (1ch, 8-bit) , 31 pins
Feature	With Touch Function

Wide Applications

5-1

6-1

6-1

	TekGroAml 2.1 inch 480x480 400 nits Round LCD Display and Mini H/D Board \| fo...	TekGroAml 2.8 inch Mini IPS PC Case LCD Round Display,480x480 330 nits \| Circ...	3.4 Inch Round 330nit LCD Display & HDMI Board, 800x800 IPS Circular Screen \|...	TekGroAml 4 Inch Round LCD Display with Micro H/D Controller Board 720x720 \| ...

Customer Reviews	—	—	—	—
Price	—	—	—	—
Screen size	2.1 inch	2.8 inch	3.4 inch	4 inch
Video input	mini HDMI	mini HDMI	mini HDMI	micro HDMI
Brightness	300 nits	330 nits	330 nits	300 nits
Resolution	480x480	480x480	800x800	720x720

Windows Quick Setup

Display detection:Connect the module as a secondary monitor and open Windows display settings.
Resolution reference:Use 720 x 720 for 4-inch models.
Refresh rate:Set the refresh rate to 60Hz.
Screen arrangement:Place the round display beside the main monitor to avoid mouse cursor conflicts.
Custom mode If the native resolution is not detected automatically, create a custom mode at the selected model's native resolution and 60Hz in the graphics control panel.
Application use:Move the compatible dashboard, monitoring interface, control UI, or simulator panel to the round secondary display after activation.

Single-Board-Computer Setup Notes

Compatibility note:Suitable for compatible single-board-computer projects that support custom video output.
Recommended target:Use the selected model's native resolution at 60Hz when supported by the platform.
Resolution reference:Use 720 x 720 for 4-inch models.
Setup method :Use platform display settings or a supported custom output method to set the required output mode.
Reboot note:Reboot the system after saving the display configuration if required by the platform.
Check items:Display output should be validated first. For touch variants, confirm the host-side touch connection method independently from the video setup before release.

Focuses on trading high-quality electronic products. We primarily sell display solutions such as TFT LCD, OLED, and AMOLED panels.

Our experienced sourcing and quality control teams work closely with international suppliers to deliver dependable products and responsive service.
mini round screen
mini round screen
mini square screen
Long Strip Screen with board
mini square screen with board
6.2 inch PC Case Display
7 inch 1280x800 Touch Monitor
Portable LCD monitors
16 inch 144HZ 2K IPS Monitor

The TekGroAml 4-inch round LCD display kit provides 720x720 pixels for PC sensor panels, custom gauges, equipment readouts and compact DIY interfaces.

Project use

Use the round viewing area for touch controls, interactive status pages or a custom HMI. The display shows the image supplied by the host; it does not measure CPU or GPU data on its own.

Specifications

Screen size: 4 inches
Screen format: Round
Native resolution: 720x720 pixels
Native pixel matrix aspect: 1:1
Panel: IPS LCD
Touch: Capacitive Touch
Refresh rate: 60 Hz
Typical brightness: 300 cd/m2
Typical contrast: 300:1
Video connection: HDMI video input through the included controller board
Power input: USB 5 V input; supply rated above 1 A
LCD active area: 101.52 mm circular active diameter

Included hardware

1 LCD screen, 1 controller board, 1 signal cable and 1 power cable.

Connection and setup

Connect the LCD to the controller with power disconnected. Then connect video and the correct power source. Set the host to 720x720 at 60 Hz. A working video image does not establish a working touch path; configure the host touch data connection and map it to this screen. Set orientation and scaling in the host as required. Secure the electronics in an insulated mount and leave the flex cable free of strain.

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by TekGroAml Return Policy

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