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2.48 Inch Instrument Dial LCD Module for Compact Gauges
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huisoar
HS025Y800R
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Designed For
2.48 Inch Instrument Dial LCD Module for Compact Gauges
This Instrument Dial LCD Module combines a round 480 × 480 IPS screen, 500 cd/m² typical luminance and a 40-pin SPI+RGB connection for compact embedded interfaces.
Product Summary
The 2.48-inch round display is designed for products that need a circular graphical interface instead of a standard rectangular screen. Its 480 × 480 pixel raster provides a square graphics canvas behind the round visible area, supporting radial gauges, status rings, icon menus, indicators and rotary-control interfaces.
A 62.928 × 62.928 mm active area fits within a slim 65.87 × 69.04 × 1.85 mm module outline. This compact profile can support embedded products where front-panel width and internal depth are tightly controlled.
Key Specifications
| Parameter | Value |
|---|---|
| Display size | 2.48 inch |
| Resolution | 480 × 480 pixels |
| Display technology | IPS TFT LCD |
| Form factor | Round |
| Optical mode | Transmissive |
| Brightness | 500 cd/m² typical |
| Contrast ratio | 1000:1 typical |
| Viewing-angle sequence | 85/85/85/85 |
| Interface | SPI+RGB |
| Connector | 40 pins |
| Active area | 62.928 × 62.928 mm |
| Module outline | 65.87 × 69.04 × 1.85 mm |
| Display colors | 262K colors |
| Backlight | Six white LEDs |
| Touch | No touch |
| Operating temperature | −20°C to +70°C |
| Storage temperature | −30°C to +80°C |
Circular 480 × 480 Interface Design
Mapping Square Graphics into a Round Opening
The display electronics use a 480 × 480 square raster, while the physical panel is round. User-interface assets should therefore be prepared on a square canvas with a circular visible-area mask.
Important controls, text and icons should remain within the central safe area. Graphic elements placed near the corners of the square canvas may fall outside the circular viewing region.
Maintaining a Circular UI Safe Area
A circular interface can support:
- speed or pressure gauges
- rotary settings
- radial progress indicators
- segmented status rings
- central numeric readouts
- warning icons
- menu wheels
- equipment-state indicators
The final safe area should be checked against the approved bezel or cover-glass opening rather than inferred from the active-area dimensions alone.
Instrument Dial LCD Module Integration
SPI Control Path
SPI commonly carries control or configuration communication in this interface class. The approved documentation must confirm:
- SPI mode
- clock polarity
- clock phase
- command format
- signal voltage
- chip-select behavior
- reset requirements
- supported clock frequency
The presence of SPI does not prove that all image data is transmitted through the serial bus.
Parallel RGB Image Path
The RGB path carries the display image stream. Host qualification should verify:
- RGB bit width
- pixel clock
- horizontal timing
- vertical timing
- synchronization polarity
- data-enable behavior
- signal voltage
- frame rate
- color order
The available product information does not confirm whether the interface uses RGB565, RGB666 or RGB888.
40-Pin FPC Qualification
A 40-pin connector does not guarantee compatibility with another SPI+RGB LCD module.
Before PCB or cable release, verify:
- complete pin assignment
- FPC pitch
- contact side
- connector series
- FPC insertion direction
- power and ground allocation
- backlight connections
- SPI signal locations
- RGB signal locations
- unused or reserved contacts
500 cd/m² Optical Positioning
The standard configuration provides 500 cd/m² typical luminance. This can support bright indoor equipment and protected installations where ambient light is stronger than ordinary office lighting.
The 500 cd/m² configuration supports bright indoor and protected installations but does not prove direct-sun readability.
Finished visibility also depends on:
- cover-glass reflection
- bonding method
- bezel shadowing
- ambient light
- display orientation
- user viewing position
- backlight drive level
A complete prototype should be evaluated under the intended lighting conditions.
Mechanical Fit and FPC Clearance
The active display area is:
62.928 × 62.928 mm
The complete module outline is:
65.87 × 69.04 × 1.85 mm
The extra height outside the circular image area accommodates the lower FPC structure. Enclosure design should account for:
- FPC exit clearance
- cable bend radius
- connector height
- adhesive area
- bezel opening
- active-area centering
- mechanical tolerance
- backlight edge clearance
- grounding and shielding requirements
The approved mechanical drawing should control enclosure release.
Backlight and Environmental Limits
The backlight is identified as six white LEDs. The available data does not establish the LED-string arrangement, drive voltage, forward current, maximum power or lifetime grade.
Request the approved backlight table before selecting a driver circuit.
The specified operating range is −20°C to +70°C, and the storage range is −30°C to +80°C. These component limits do not automatically establish:
- automotive qualification
- outdoor enclosure suitability
- moisture resistance
- condensation resistance
- shock or vibration performance
- finished-product certification
Recommended Applications
Compact Instrument Gauges
The round format supports radial scales, central numeric values and warning indicators in compact measurement equipment.
Rotary Control Interfaces
The display can be integrated behind a rotary knob or circular control surface for smart appliances, audio controls and equipment settings.
Smart Appliance Dials
Circular menus and operating-state graphics can be used in ovens, coffee equipment, air-treatment controls and other appliances after environmental qualification.
Embedded Status Displays
The module can show equipment state, alarms, timers, progress rings and operating parameters in space-constrained embedded systems.
Wearable-Adjacent Products
The display may be evaluated for body-worn, portable or handheld products, but the 65.87 × 69.04 mm module outline must be checked against the intended form factor. It should not be assumed to fit a conventional wristwatch enclosure.
Customization and Sample Review
Project-specific review may cover:
- FPC length and orientation
- connector selection
- interface timing
- brightness calibration
- printed border
- cover lens
- optical bonding
- touch-panel adaptation
- mechanical opening
- packaging
Touch is not included in the confirmed standard configuration.
Custom configurations are generally reviewed from 500 pieces, subject to tooling requirements, material availability and the requested specification. Sample and standard-module quantities are confirmed separately.
Procurement Checklist
Before sample or production approval, confirm:
- native 480 × 480 timing
- SPI mode and clock
- RGB bit width
- pixel-clock range
- horizontal and vertical timing
- synchronization polarity
- 40-pin assignment
- FPC pitch
- contact side
- connector part number
- logic voltage
- backlight voltage
- backlight current
- LED-string structure
- maximum power
- active-area position
- module outline
- visible circular opening
- FPC exit location
- operating and storage limits
- surface treatment
- touch requirement
- driver-IC documentation
- compliance files
- sample quantity
- annual demand
- production schedule
FAQ
About 2.48 Inch Instrument Dial LCD Module
What must be checked before connecting the 40-pin interface?
How should 480 × 480 graphics be prepared for the round screen?
Is 500 cd/m² enough for a bright installation?
Is touch included?
Which dimensions should control the enclosure?
Freya Yang
+86 18318948097
