Introducing a Smarter Low-Power LCD Design for Small Home Appliances
In the ever-evolving world of smart appliances, power efficiency and user experience are equally vital. We’re excited to introduce our innovative dual-layer LCD solution, designed specifically for small home appliance applications that demand both high-resolution visuals and ultra-low-power standby modes.
The Architecture: Two Displays in One Panel
Our LCD module integrates two independent layers:
Upper Layer: Segment-type SVTN (VA panel)
Lower Layer: High-resolution IPS panel
This unique structure allows the device to switch seamlessly between high-performance display and low-power standby mode:
IPS Display (Active Mode):
When the device is in use, the vibrant IPS panel delivers a crisp, detailed user interface.
SVTN (VA) Display (Standby Mode):
When idle, the device shifts to the VA segment display. This layer consumes extremely low power, and can still display dynamic information like time, temperature, or status updates. To further reduce energy use, the backlight can be dimmed without losing visibility.
Why Not Use RAM-LCD ICs Instead?
While an alternative solution is to use a RAM-integrated LCD driver IC, that approach has several limitations:
- Static-only content unless the MCU frequently wakes up—leading to more power consumption.
- Software complexity increases significantly with real-time content.
- Higher BOM cost due to limited IC availability and premium pricing.
In contrast, our SVTN (VA) -based design is:
- Software-friendly: Minimal MCU involvement needed.
- Cost-effective: SVTN (VA) segments are simpler to drive, and component selection is broader.
- Power-efficient with dynamic capability.
Application Scenarios
Smart kettles, cookers, and humidifiers
IoT-enabled thermostats or timers
Battery-powered home gadgets requiring long standby time