Freya Yang
+86 18318948097
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1.54 Inch Square E Paper Screen for ESL Price Tags
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huisoar
HS1543S
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Panel Size (inch)
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Viewing Angle
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Designed For
1.54 Inch Square E Paper Screen for ESL Price Tags
This 152 × 152 reflective panel uses a 24-pin MCU/SPI connection and a slim 0.93 mm profile for compact shelf-label assemblies.
Product Summary
The Square E Paper Screen for ESL is a compact 1.54-inch electronic-paper component for retail price tags, shelf labels, reusable information cards, and other low-update embedded displays. Its native 152 × 152 square raster supports centered prices, promotional symbols, compact barcodes, short product names, and status graphics without rotating a rectangular layout.
The panel provides a 27.51 × 27.51 mm active area within a 31.80 × 37.32 × 0.93 mm outline. It uses a 24-pin MCU/SPI connection, has no backlight, and is listed with a 180° wide-view description. The standard assembly is non-touch. The product documentation contains conflicting color-count descriptions, so the exact ordered color version must be approved before artwork and waveform release.
Key Specifications
| Parameter | Confirmed value |
|---|---|
| Display size | 1.54 inches |
| Native resolution | 152 × 152 pixels |
| Aspect ratio | 1:1 |
| Display technology | Electronic paper / EPD |
| Interface | MCU/SPI |
| FPC connection | 24 pins |
| Active area | 27.51 × 27.51 mm |
| Module outline | 31.80 × 37.32 × 0.93 mm |
| Pixel pitch | 0.181 × 0.181 mm |
| Viewing description | Listed 180° wide view |
| Backlight | None |
| Touch | None |
| Operating temperature | 0°C to +40°C |
| Storage temperature | −25°C to +60°C |
| Color information | Black, white, yellow, and red are listed; another field states three colors, requiring revision confirmation |
Square Artwork and Color-Version Control
Native 152 × 152 Content
Artwork should be prepared directly for the 152 × 152 pixel canvas. A square layout is useful for centered price blocks, promotion badges, compact identifiers, small logos, and simple status icons. Native-size assets avoid unnecessary scaling and preserve the geometry of fine text and machine-readable elements.
Confirm the Ordered Color Set
The product title and parameter table identify a four-color route, including black, white, yellow, and red. A separate catalog field states three colors. This discrepancy must be resolved against the approved model revision before final artwork conversion.
Color-separated artwork should use only the confirmed output channels. Do not assume gray levels or color mixing without approved controller and waveform documentation.
No Backlight Optical Design
The panel has no backlight. The finished label therefore depends on ambient illumination, the front-window material, reflections, print or coating around the viewing area, and the installation angle. No-backlight construction does not by itself establish performance in every shelf, cabinet, freezer, outdoor, or low-light environment.
Integrating the Square E Paper Screen for ESL
24-Pin MCU/SPI Qualification
A 24-pin MCU/SPI label does not define the complete electrical interface. Before PCB release, confirm the full pin assignment, SPI mode, clock limits, data and command behavior, chip select, reset, busy indication, power rails, generated drive voltages, FPC pitch, contact side, and connector orientation.
A matching 24-pin connector does not guarantee compatibility. The host design must match the ordered revision, controller, waveform package, and FPC geometry.
Controller and Waveform Boundaries
No driver IC is confirmed in the supplied product table. Do not select initialization commands, lookup tables, drive voltages, refresh timing, or partial-refresh behavior from another 1.54-inch panel solely because the size and resolution match.
The approved controller documentation should define full-update behavior, color waveform requirements, temperature handling, busy timing, sleep sequence, and image-data format. Partial refresh must remain unclaimed until the exact controller and waveform package confirms it.
Power and Update Planning
System power requires refresh current, refresh duration, sleep current, update frequency, controller consumption, communications power, and the finished battery design.
The panel is not a complete wireless ESL and does not include a confirmed radio, battery, enclosure, antenna, gateway, management platform, or controller board.
Mechanical Integration
Active Area, Outline, and Thickness
The active image measures 27.51 × 27.51 mm. The complete panel outline is 31.80 × 37.32 mm, including a rectangular body around the square image area. Enclosure design should use the approved drawing for panel datum, visible opening, support surfaces, adhesive restrictions, edge clearance, and FPC exit position.
The 0.93 mm thickness describes the panel rather than a complete label; the window, PCB, power system, housing, and mounting structure increase the final stack.
FPC Routing
The FPC must not be folded or compressed without approved bend guidance. Confirm the contact side, pitch, insertion direction, mating connector, stiffener dimensions, bend zone, and strain relief before releasing the enclosure or PCB.
Environmental and Application Fit
The listed operating range is 0°C to +40°C, with storage from −25°C to +60°C. These limits should be checked against the actual shelf, warehouse, transport, and installation environment. It does not establish freezer, outdoor, automotive, medical, or other regulated-use suitability.
The Square E Paper Screen for ESL can be evaluated for retail price tags, promotional shelf cards, reusable product identifiers, inventory labels, room or asset labels, and compact low-update information panels. Each finished device still requires interface, waveform, optical, mechanical, environmental, and system-level qualification.
Customization and Procurement
Project review may cover FPC routing, connector and interface details, controller and waveform support, color version, front-window design, enclosure adaptation, artwork conversion, branding, and packaging.
Custom configurations are generally reviewed from 500 pieces, subject to tooling requirements, material availability, and the requested specification. Sample and standard-panel quantities are confirmed separately.
Procurement Checklist
Confirm the following before approval:
- Assigned model and supplier revision
- Native 152 × 152 orientation and artwork
- Exact black, white, yellow, and red or other ordered color version
- Complete 24-pin FPC assignment
- SPI mode, clock, reset, busy, data, and command behavior
- Logic supply and generated panel-drive voltages
- Controller, lookup-table, and waveform package
- Full-refresh time and any partial-refresh support
- Refresh current, sleep current, and update-frequency target
- FPC pitch, contact side, connector, and bend requirements
- 27.51 × 27.51 mm active area
- 31.80 × 37.32 × 0.93 mm module fit
- Front-window lighting and reflection conditions
- No-backlight and no-touch status
- 0°C to +40°C operating range
- Sample criteria, project quantity, and annual demand
FAQ
About 1.54 Inch Square E Paper Screen
Freya Yang
+86 18318948097
