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320x240 SPI
Display Products

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320x240x5.7 SPI


1/4 VGA Cholesteric Display Module with SPI™-Compatible Interface

The 320x240 (1/4 VGA) ChLCD is a general-purpose graphic display module ideally suited for battery powered portable devices and display applications that require superior optical performance including wide viewing angle and sunlight readability. The display is a reflective cholesteric liquid crystal display (ChLCD) that takes full advantage of the technology’s unique “No Power” image retention attribute.

The embedded display controller generates the unique ChLCD drive waveforms and provides automatic temperature compensation. The SPI-compatible interface to the embedded controller simplifies system integration using a minimal number of I/O resources and controls all display operations, from downloading image data to triggering display updates. Bistable, sunlight readable, and easy to integrate, the 320x240 (1/4 VGA) is truly a unique LCD solution.

Product Features

Display Module:
• 320 Columns × 240 Rows
• “No Power” Image Retention
• Active Frame: 2 Rows and 2 Columns
• 3.3V Logic Supply
• 72 dpi (pixels per inch)
• 4.0V – 9.0V Power Supply
• Approximate Size: 155x108x14 mm
• Viewing Cone Comparable to Paper
• Four Standard Colors
• Low Profile Modular Design
• Integrated LCD Bias Supply
• Available with Optional Bezel

Embedded Controller:
• Serial Peripheral Interface (SPI) Compatible
• 250 kbps Image Download
• 32 KB of Image Memory
• 10 μA Sleep Current
• Full or Partial Screen Update Ability

Typical Applications

• Battery Powered Portable Devices
• Instrumentation Displays
• Machine Interface
• Remote Control Display Applications
• Inventory Tracking Displays
• Point of Sale Displays

For more information you may download the technical datasheet.

SPI™ is a trademark of Motorola Inc.

Kent Displays is the world leader in the research, development, and manufacture of Reflex™ Liquid Crystal Display products.
The unique "No Power" attribute of Kent Displays' ChLCD products permits image retention without power, offering unprecedented
energy savings in many applications. Superior optical performance over extreme viewing angles, combined with the
reflective nature of the Cholesteric LCD offers unmatched readability, even in direct sunlight.

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