Round / Circular TFT LCD Displays

Round / Circular TFT LCD Displays – Modern Interfaces for Modern Products | DisplayMan

The Future of Human-Machine Interfaces Is Round

Circular interfaces are transforming modern product design — from smart thermostats to medical handhelds and EV dashboards.

A round TFT LCD eliminates wasted rectangular space, enabling sleek, intuitive, 360° interactions that elevate any device.

DisplayMan’s Circular TFT Displays deliver full-color visuals, IPS wide viewing angle, high brightness, and complete customization — engineered to fit your product perfectly, not the other way around.

🖼️ Showcase of DisplayMan Circular TFT LCD Displays

Discover DisplayMan’s most popular true round TFT LCD modules, engineered for modern interfaces that demand both style and precision.

From compact wearables to industrial dials and smart home controllers, these displays highlight the full range of our circular solutions — featuring IPS viewing angles, vibrant full-color graphics, and customizable electrical, optical, and mechanical options.

Whether you need a ready-to-use standard module or a fully customized diameter designed around your enclosure, this showcase provides a clear look at what DisplayMan can build for your product.

Explore the sizes, resolutions, and capabilities that power today’s most innovative round-format devices.

Parameter	Specification
Product Name	1.3″ Round TFT LCD (No Touch)
Part Number	KD013QVFMD002-03
Resolution	240 × 240
Display Type	TFT / Transmissive / Normally Black
Touch Panel	No
Active Area	32.40 × 32.40 mm
Brightness	450 cd/m²
Interface	MCU + SPI + RGB
Driver IC	ST7789V
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	1.04″ LTPS Round AMOLED with On-Cell CTP
Part Number	KD010LQOSN001-C0000
Resolution	340 × 340
Display Type	AMOLED / On-cell Touch
Touch Panel	Capacitive Touch (CST9217)
Active Area	26.35 × 26.35 mm
Brightness	630 cd/m²
Interface	QSPI
Driver IC	SH8601
Operating Temperature	–10°C to +60°C

Parameter	Specification
Product Name	1.6″ Round TFT LCD with CTP
Part Number	KD016WVFID001-C002A
Resolution	400 × 400
Display Type	TFT / Transmissive / Normally Black
Touch Panel	Capacitive Touch
Active Area	39.84 × 39.84 mm
Brightness	350 cd/m²
Interface	MIPI
Driver IC	ST7797
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	3.4″ Round IPS TFT LCD (HDMI, No Touch)
Part Number	KD034WVFID003-SP001A-HDMI
Resolution	800 × 800
Display Type	IPS / Transmissive / Normally Black
Touch Panel	No
Active Area	87.60 × 87.60 mm
Brightness	600 cd/m²
Interface	HDMI
Driver IC	ILI9881C
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	2.1″ High-Contrast Round IPS LCD (No Touch)
Part Number	KD021WVFPD011
Resolution	480 × 480
Display Type	IPS / Transmissive / Normally Black
Touch Panel	No
Active Area	53.28 × 53.28 mm
Brightness	650 cd/m²
Interface	16/18/24-bit RGB
Driver IC	ST7701S
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	2.1″ High-Contrast Round IPS LCD with CTP
Part Number	KD021WVFPD011-C001A
Resolution	480 × 480
Display Type	IPS / Transmissive / Normally Black
Touch Panel	Capacitive Touch
Active Area	53.28 × 53.28 mm
Brightness	600 cd/m²
Interface	16/18/24-bit RGB
Driver IC	ST7701S
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	2.8″ High-Brightness Round TFT LCD (No Touch)
Part Number	KD028WXFPD075
Resolution	480 × 480
Display Type	TFT / Transmissive / Normally Black
Touch Panel	No
Active Area	70.13 × 70.13 mm
Brightness	1700 cd/m²
Interface	3-SPI + 16/18/24-bit RGB
Driver IC	ST7701S
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	3.4″ High-Contrast Round TFT LCD (No Touch)
Part Number	KD034WVFID003
Resolution	800 × 800
Display Type	TFT / Transmissive / Normally Black
Touch Panel	No
Active Area	87.60 × 87.60 mm
Brightness	430 cd/m²
Interface	MIPI
Driver IC	ILI9881C
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	3.4″ Round TFT LCD with Capacitive Touch
Part Number	KD034WVFID003-C008A
Resolution	800 × 800
Display Type	TFT / Transmissive / Normally Black
Touch Panel	Capacitive Touch
Active Area	87.60 × 87.60 mm
Brightness	400 cd/m²
Interface	MIPI
Driver IC	ILI9881C
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	3.6″ Wide-Temperature IPS TFT LCD (No Touch)
Part Number	KD036AUFPA002
Resolution	544 × 506
Display Type	IPS / Transmissive / Normally Black
Touch Panel	No
Active Area	89.76 × 83.49 mm
Brightness	900 cd/m²
Interface	24-bit RGB
Driver IC	ST72566
Operating Temperature	–35°C to +85°C

Parameter	Specification
Product Name	4.0″ Round IPS LCD with Capacitive Touch
Part Number	KD040HDFID088-C054A
Resolution	720 × 720
Display Type	IPS / Transmissive / Normally Black
Touch Panel	Capacitive Touch
Active Area	101.52 × 101.52 mm
Brightness	800 cd/m²
Interface	2/3/4-Lane MIPI
Driver IC	ILI9881C
Operating Temperature	–20°C to +70°C

Parameter	Specification
Product Name	5.0″ IPS LCD with Capacitive Touch
Part Number	KD050SXFID039-C045A
Resolution	1080 × 1080
Display Type	IPS / Transmissive / Normally Black
Touch Panel	Capacitive Touch
Active Area	127.01 × 127.01 mm
Brightness	270 cd/m²
Interface	4-Lane MIPI
Driver IC	HX8399
Operating Temperature	–20°C to +60°C

Round TFT LCD Modules for Smart Knobs, Meters, Dials and Compact OEM Interfaces

DisplayMan supplies Circular TFT LCD Displays, also called Round TFT LCD Displays, for products that require a true round active display area instead of a standard rectangular LCD.

Typical applications include smart knobs, rotary controls, smart-home controllers, meters, gauges, industrial dials, medical instruments, vehicle dashboards, marine displays and compact OEM devices.

This page focuses on Circular TFT LCD modules and module-level integration. Smart Knob Displays are included as an important application and assembly direction built around the round display.

A Circular TFT LCD Project Can Include

Standard round TFT LCD module selection
IPS, high-brightness or wide-temperature options
Capacitive or selected resistive touch integration
Round cover glass and printed borders
AG, AR or AF surface treatment
Optical bonding or air bonding
SPI, RGB, MCU, MIPI, TTL or controller-board review
FPC, cable, housing and mechanical integration

Core Product Positioning

Choose a Circular TFT LCD when the product structure and interface logic require a true round display. Do not select it only because a circular screen looks distinctive.

Reference Circular TFT LCD Product Lineup

The following modules are reference examples. Final LCD model, availability, active area, brightness, interface, touch structure, FPC direction and dimensions must be reconfirmed for each project.

Reference Size	Resolution	Reference Brightness	Touch Option	Reference Interface	Typical Use
1.3" Round TFT LCD	240 × 240	450 cd/m²	No touch	MCU + SPI + RGB	Compact meters, small controllers and wearable-style products
1.6" Round TFT LCD	400 × 400	350 cd/m²	Capacitive touch option	MIPI / project-based	Smart knobs, compact touch interfaces and handheld devices
2.1" Round IPS TFT LCD	480 × 480	650 cd/m²	No touch / CTP option	RGB	Smart controllers, industrial dials and medical instruments
2.8" High Brightness Round TFT LCD	480 × 480	1700 cd/m²	No touch	SPI + RGB	Outdoor-facing instruments, vehicle dashboards and bright environments
3.4" Round TFT LCD	800 × 800	430 cd/m²	No touch / CTP option	MIPI / HDMI option	Larger circular UI, equipment panels and control displays
3.6" Wide Temperature Round IPS TFT LCD	544 × 506	900 cd/m²	No touch	RGB	Industrial instruments, vehicle systems and wider-temperature use
4.0" Round IPS TFT LCD	720 × 720	800 cd/m²	CTP option	MIPI	Smart panels, industrial controllers and premium circular interfaces
5.0" Round IPS TFT LCD	1080 × 1080	270 cd/m²	CTP option	MIPI	Large round UI, commercial equipment and custom control systems

Reference Data Is Not a Final Quotation Specification

Diameter alone is not enough. Active area, outline size, cover glass, FPC direction, connector, mounting, touch, voltage, timing, temperature and product lifecycle must also match.

Smart Knob Displays and Rotary Knob TFT Displays

A Smart Knob Display combines a round TFT LCD with a rotary or knob-style product structure. It provides both physical rotary interaction and digital visual feedback.

The Circular TFT LCD is the display module. The Smart Knob Display is the more complete interface built around that display.

Typical products include appliances, smart-home controllers, lighting controls, coffee machines, water purifiers, air fryers, audio equipment, vehicle controls and compact industrial devices.

Smart Knob Integration Can Include

Round TFT LCD and display window
Plastic or aluminum-alloy housing
Flat or knurled surface design
Outer diameter and product height
Rotary structure discussion
Cover glass and printed border
Light strip or indicator effect
Cable, connector and mounting structure

Reference Smart Knob Display Sizes

Knob Display Size	Resolution	Reference Display Area	Display Type	Reference Interface	Reference Brightness
1.28" Smart Knob Display	240 × 240	32.4 × 32.4 mm	IPS	TTL	300 cd/m²
1.6" Smart Knob Display	400 × 400	39.8 × 39.8 mm	IPS	TTL	300 cd/m²
2.1" Smart Knob Display	480 × 480	53.28 × 53.28 mm	IPS	TTL	300 cd/m²
2.76" Smart Knob Display	480 × 480	70.13 × 70.13 mm	IPS	TTL	300 cd/m²

Product Boundary

Choose a Circular TFT LCD when the customer will build the housing and rotary mechanism. Choose a Smart Knob Display direction when the customer needs a more complete knob-style interface assembly.

What Is a Circular TFT LCD Display?

True Round Active Area

The active image itself is circular rather than a rectangular panel hidden behind a round opening.

Shape-Driven Product Choice

Selected because the enclosure, UI or physical control structure is naturally round.

Compact Interface Direction

Suitable for gauges, meters, dials, smart knobs and quick-glance control interfaces.

Core Line

Circular TFT LCD Displays are selected when the product needs a true round display shape—not simply a decorative round window.

Why Use a Circular TFT LCD?

Fits Round Enclosures

Integrates naturally into knobs, dials, gauges, meters and circular control products.

Uses the Display Area Efficiently

A true round panel avoids hiding the unused corners of a rectangular LCD behind a mask.

Supports Circular UI

Works well for speed, temperature, pressure, timers, levels and rotary menu interfaces.

Cleaner Product Appearance

Can reduce oversized masks and mechanical structures used to hide rectangular corners.

Touch and Glass Integration

Selected models can use capacitive touch, round cover glass, printed borders and bonding.

Smart Knob Potential

The round display can become the visual center of a rotary control assembly.

Custom Circular TFT LCD Support

Round TFT LCD size selection
Resolution and active area
IPS or standard TFT direction
Brightness requirement
Selected wide-temperature options
Capacitive or resistive touch review
Round cover glass
Printed border or custom mask
AG, AR or AF treatment
Optical bonding or air bonding
SPI, RGB, MCU, MIPI, TTL or HDMI review
Controller-board matching
FPC length and direction
Connector and cable assembly
Backlight adjustment
Mechanical and mounting integration
Existing round-LCD replacement
Smart Knob housing integration

Customization Boundary

Most projects start from an existing standard round LCD module. Customization normally focuses on touch, cover glass, brightness, bonding, interface, FPC, cable and mechanical integration. A fully new round LCD may require tooling, higher MOQ and a longer development cycle.

Typical Applications

Smart Home Controllers

Thermostats, lighting controllers, HVAC panels and compact rotary interfaces.

Smart Knob Interfaces

Appliances, coffee machines, water purifiers, lighting, audio and vehicle controls.

Meters, Gauges and Dials

Speed, temperature, pressure, level, timer and instrument interfaces.

Industrial Equipment

Compact HMI, test instruments, energy equipment and embedded controllers.

Medical and Laboratory Devices

Compact instruments where a circular UI matches the product structure.

Vehicle and Marine Systems

Dashboard, center-control, motorcycle, e-bike and marine instrument displays.

Wearable-Style Products

Compact consumer electronics and smart devices requiring a round display form.

Handheld Instruments

Portable measurement, diagnostic and professional-use products.

Custom OEM Electronics

Project-specific round displays with touch, glass, bonding and housing integration.

Circular TFT LCD Product Comparisons

Circular TFT LCD vs Smart Knob Display

Item	Circular TFT LCD Display	Smart Knob Display
Product Type	LCD display module	Display-based control interface
Main Structure	Round LCD panel or module	Round LCD, housing and knob structure
Main Function	Show visual content	Show content and support rotary interaction
Mechanical Scope	Customer integrates the module	More complete knob-style assembly
Custom Focus	Size, resolution, brightness, interface, touch and FPC	Housing, material, appearance, cable, mounting, rotation and UI
Best For	Meters, dials, gauges and embedded round displays	Appliances, smart home, vehicle and compact physical controls

Circular TFT LCD vs Rectangular TFT LCD

Requirement	Circular TFT LCD	Rectangular TFT LCD
Display Shape	True round active area	Standard rectangular active area
Best Mechanical Fit	Round housing, knob, dial, gauge or meter	Normal panel, HMI, terminal or monitor layout
UI Style	Circular UI, gauge, dial and quick-glance information	Text, images, video, menus and general UI
Availability	More limited standard sizes	Wider size and resolution availability
Selection Logic	Choose when the product structure requires a round display	Choose when a normal screen format is acceptable

Circular TFT LCD vs Round AMOLED

Factor	Circular TFT LCD	Round AMOLED
Display Technology	LCD with LED backlight	Self-emissive OLED / AMOLED
Cost Direction	Often more practical for many OEM products	Usually higher cost
Black Performance	Depends on LCD and backlight structure	Stronger black performance
Static UI Consideration	Generally suitable for static control interfaces	Burn-in risk should be reviewed
Best For	Controllers, meters, instruments and commercial products	Wearables and premium high-contrast consumer products
Selection Logic	Choose for practical round LCD integration	Choose when AMOLED visual performance is essential

How to Select the Right Circular TFT LCD

Confirm the Product Structure

Round embedded module, smart knob assembly, gauge, meter, dial or another compact interface.

Provide the Diameter and Opening

Active area, visible opening, outer dimensions, cover glass and mounting space.

Choose Resolution and UI

Gauge, dial, icons, text, animation, menu and quick-glance information requirements.

Define Brightness, Touch and Optics

Brightness, IPS, touch, cover glass, printed border, AG/AR/AF and bonding.

Match Interface and FPC

SPI, RGB, MCU, MIPI, TTL, HDMI controller, FPC direction, connector and cable.

Validate Mechanics and Production

Housing, rotation, mounting, temperature, quantity, sample testing, budget and schedule.

When This Product Is the Right Choice

Suitable For

True round active display areas
Round product housings
Circular user interfaces
Smart knobs and rotary controls
Gauges, meters and dials
Round IPS TFT LCD modules
High-brightness round displays
Capacitive touch round LCDs
Round cover-glass integration
Custom printed borders
FPC and cable-direction review
Existing round-LCD replacement

May Require Another Product Route

A standard rectangular LCD already fits
The UI is mainly text-heavy or menu-based
The project needs a large display area
The lowest possible LCD cost is the priority
The product does not require a round structure
A complete monitor with enclosure is required
Sunlight readability is the main issue
Industrial lifecycle is the main issue
Touch integration on a standard LCD is the main issue
OLED-level black performance is essential
The customer only needs a decorative round window
No mechanical structure has been defined

Adjacent TFT LCD Product Pages

Choose Another TFT LCD Direction When Round Shape Is Not the Main Requirement

Circular TFT LCD is the correct product when the display shape must be round. If brightness, viewing angle, industrial reliability, touch integration or another shape is more important, use the corresponding product page.

Product Page	Choose This When
TFT LCD Displays	You need the main TFT LCD product category and general module selection
High Brightness TFT LCD Displays	Visibility under strong ambient light is the main issue
Bar Type TFT LCD Displays	You need a long, narrow or stretched display shape
IPS TFT LCD Displays	Wide viewing angle and image stability are the main issues
Square TFT LCD Displays	You need a square active display area
Industrial TFT LCD Displays	Wide temperature, lifecycle and reliability are the main issues
TFT LCD Touch Screen Displays	Touch integration is the main buying reason

Explore TFT LCD Displays → IPS TFT LCD Displays TFT LCD Touch Screen Displays

What Information Should You Provide?

Circular LCD Requirement

Required display diameter
Active area and resolution
Brightness and viewing-angle requirement
Touch or non-touch
Existing LCD model if replacing

Optical and Electrical Integration

Cover-glass size and printed border
AG, AR or AF treatment
Optical bonding
Interface and controller requirement
FPC direction, connector and cable

Mechanical and Commercial

Enclosure drawing and mounting space
Operating temperature and environment
Smart Knob housing and rotation requirements
Sample and production quantity
Destination and project schedule

The Enclosure Drawing Is Especially Important

The LCD diameter, cover glass, touch panel, FPC direction, cable and mounting space must match the product structure. For Smart Knob projects, also provide the outer diameter, height, material, rotation and appearance requirements.

Related Page	When to Visit
TFT LCD Displays	Main TFT LCD product category and general module selection
High Brightness TFT LCD Displays	High ambient light and outdoor-facing module requirements
Bar Type TFT LCD Displays	Long and narrow display shapes
IPS TFT LCD Displays	Wide viewing angle and stable image quality
Square TFT LCD Displays	Square active-area product designs
Industrial TFT LCD Displays	Wide temperature, lifecycle and industrial reliability
TFT LCD Touch Screen Displays	Touch-focused TFT LCD module integration
Capacitive Touch Panels	Projected capacitive touch sensor and controller options
Custom Touch Glass Solution	Custom round glass, printed borders, holes and touch integration
AG Cover Glass	Reduce glare in bright environments
AR Cover Glass	Reduce reflection for premium visibility
AF Cover Glass	Reduce fingerprints on touch products
Optical Bonding Display Solution	Reduce air gap and internal reflection
Custom LCD Module Solution	LCD, touch, backlight, FPC and mechanical integration
OEM/ODM Display Engineering & Prototyping	Requirement review, samples and controlled batch production

FAQ

What is a Circular TFT LCD Display?

A Circular TFT LCD Display is a full-color TFT LCD module with a true round active display area. It is used when the product requires a circular interface such as a meter, gauge, dial, knob or compact controller.

Is a circular TFT LCD the same as a rectangular LCD behind a round mask?

No. A true circular TFT LCD has a round active display area. A rectangular LCD behind a round mask still contains unused corner areas hidden by the mechanical structure.

What is a Smart Knob Display?

A Smart Knob Display is a knob-style control interface built around a round TFT LCD. It may combine the LCD, housing, rotary structure, cover glass, cable and control interface.

Is a Smart Knob Display the same as a Circular TFT LCD?

No. The Circular TFT LCD is the display module. The Smart Knob Display is a more complete product interface built around the round display.

What reference Smart Knob Display sizes are available?

Reference sizes include 1.28-inch, 1.6-inch, 2.1-inch and 2.76-inch Smart Knob Displays. Final dimensions, material, structure, interface and software scope must be confirmed for the product design.

Can you provide capacitive touch?

Yes. Capacitive touch can be reviewed for selected Circular TFT LCD modules. The final touch design depends on LCD size, cover glass, FPC direction, controller and mechanical structure.

Can you provide resistive touch?

Resistive touch can be reviewed for selected industrial, stylus or pressure-operated applications, subject to module size and mechanical feasibility.

Can you provide round cover glass?

Yes. Round cover glass, printed borders, custom masks, holes, AG, AR or AF treatment and optical bonding can be reviewed according to the front-panel structure.

Can a Circular TFT LCD be high brightness?

Yes. Selected Circular TFT LCD modules can use higher-brightness backlights. Brightness, heat, reflection, cover glass and optical bonding should be reviewed together.

Can a Circular TFT LCD use IPS technology?

Yes. Selected models use IPS technology for wider viewing angles and more stable image quality. IPS, brightness and operating temperature remain separate selection factors.

Can a Circular TFT LCD be used outdoors?

The LCD module itself is not a complete outdoor waterproof product. Outdoor or outdoor-facing use requires suitable brightness, optical treatment, sealing, thermal design, electrical protection and enclosure engineering.

What interfaces are available?

Reference interfaces include SPI, RGB, MCU, MIPI and TTL. HDMI may be supported through a suitable controller board for selected projects.

Can you match a controller board?

Yes. When the customer mainboard does not directly support the selected LCD interface, DisplayMan can review a suitable controller-board or signal-conversion direction.

Can the LCD diameter be customized?

Standard round TFT LCD modules are preferred. A fully custom diameter may require tooling, engineering validation, higher MOQ and a longer development schedule.

When should I choose Round AMOLED instead?

Round AMOLED may be considered when very high contrast, self-emissive pixels, a thin structure or premium wearable-style visual performance is essential. Circular TFT LCD is often more practical for controllers, meters and industrial or commercial products.

Can you replace an existing round LCD?

Yes. Please provide the original LCD model, datasheet, photos, interface, FPC direction, dimensions, mounting information and sample if available.

What information is required for a Circular TFT LCD quotation?

Please provide the required diameter, active area, resolution, brightness, touch, interface, cover glass, FPC direction, operating temperature, enclosure drawing, application, quantity and schedule.

What additional information is required for a Smart Knob Display?

Please provide the outer diameter, product height, housing material, appearance, rotation structure, signal interface, cable, mounting, UI or software requirement, sample quantity and target production quantity.

Start Your Circular TFT LCD Project

Send us the required diameter, resolution, brightness, touch, interface, cover glass, FPC direction, product drawing, application, quantity and schedule.

For Smart Knob Display projects, also provide the outer diameter, product height, material, rotation structure, cable, mounting and UI requirements.

DisplayMan will review whether a standard Circular TFT LCD module, a customized round display assembly or a Smart Knob Display direction is the most practical choice.