Explore circular TFT LCD modules for smart knobs, meters, gauges, appliances and compact OEM controls. DisplayMan reviews display diameter, resolution, interfaces, touch, cover glass and controller options around your product design and integration requirements.
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.
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.
Compare 11 TFT LCD options for round-format interfaces, including touch, interface, brightness and operating-temperature specifications. Confirm the active display outline and mechanical drawing for your enclosure.
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
These two round displays use AMOLED technology. Explore the AMOLED Displays category for this product direction.
| 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 |
| Product Name | 1.43″ Round LTPS AMOLED with Capacitive Touch |
|---|---|
| Display Type | LTPS AMOLED |
| Nominal Size | 1.4″ |
| Resolution | 466 × 466 |
| Interface | QSPI |
| Driver IC | CO5300 |
| Viewing Angle | Free viewing angle |
| Touch Panel | Capacitive Touch |
| Operating Temperature | –20°C to +70°C |
| Brightness | 800 nits |
| Dimensions | 40.86 × 51.97 × 2.76 mm |
| Active Area | 36.35 × 36.35 mm |
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 |
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.
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.
| 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 |
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.
The active image itself is circular rather than a rectangular panel hidden behind a round opening.
Selected because the enclosure, UI or physical control structure is naturally round.
Suitable for gauges, meters, dials, smart knobs and quick-glance control interfaces.
Circular TFT LCD Displays are selected when the product needs a true round display shape—not simply a decorative round window.
Integrates naturally into knobs, dials, gauges, meters and circular control products.
A true round panel avoids hiding the unused corners of a rectangular LCD behind a mask.
Works well for speed, temperature, pressure, timers, levels and rotary menu interfaces.
Can reduce oversized masks and mechanical structures used to hide rectangular corners.
Selected models can use capacitive touch, round cover glass, printed borders and bonding.
The round display can become the visual center of a rotary control assembly.
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.
Thermostats, lighting controllers, HVAC panels and compact rotary interfaces.
Appliances, coffee machines, water purifiers, lighting, audio and vehicle controls.
Speed, temperature, pressure, level, timer and instrument interfaces.
Compact HMI, test instruments, energy equipment and embedded controllers.
Compact instruments where a circular UI matches the product structure.
Dashboard, center-control, motorcycle, e-bike and marine instrument displays.
Compact consumer electronics and smart devices requiring a round display form.
Portable measurement, diagnostic and professional-use products.
Project-specific round displays with touch, glass, bonding and housing integration.
| 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 |
| 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 |
| 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 |
Round embedded module, smart knob assembly, gauge, meter, dial or another compact interface.
Active area, visible opening, outer dimensions, cover glass and mounting space.
Gauge, dial, icons, text, animation, menu and quick-glance information requirements.
Brightness, IPS, touch, cover glass, printed border, AG/AR/AF and bonding.
SPI, RGB, MCU, MIPI, TTL, HDMI controller, FPC direction, connector and cable.
Housing, rotation, mounting, temperature, quantity, sample testing, budget and schedule.
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 |
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.
TFT LCD Family
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.
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.
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.
No. The Circular TFT LCD is the display module. The Smart Knob Display is a more complete product interface built around the round display.
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.
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.
Resistive touch can be reviewed for selected industrial, stylus or pressure-operated applications, subject to module size and mechanical feasibility.
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.
Yes. Selected Circular TFT LCD modules can use higher-brightness backlights. Brightness, heat, reflection, cover glass and optical bonding should be reviewed together.
Yes. Selected models use IPS technology for wider viewing angles and more stable image quality. IPS, brightness and operating temperature remain separate selection factors.
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.
Reference interfaces include SPI, RGB, MCU, MIPI and TTL. HDMI may be supported through a suitable controller board for selected projects.
Yes. When the customer mainboard does not directly support the selected LCD interface, DisplayMan can review a suitable controller-board or signal-conversion direction.
Standard round TFT LCD modules are preferred. A fully custom diameter may require tooling, engineering validation, higher MOQ and a longer development schedule.
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.
Yes. Please provide the original LCD model, datasheet, photos, interface, FPC direction, dimensions, mounting information and sample if available.
Please provide the required diameter, active area, resolution, brightness, touch, interface, cover glass, FPC direction, operating temperature, enclosure drawing, application, quantity and schedule.
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.
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.
Please share your application, display size, quantity and project background. We will review the most practical display direction.
