The Ultimate Guide to Bar Type LCD Displays (Stretched Screens）

Fitting the Unfittable: The Ultimate Guide to Bar Type LCD Displays

In industrial design, space is often a luxury. A standard 16:9 or 4:3 monitor simply doesn’t fit on a 1U server rack, a slim medical pen, or a car’s rearview mirror. Engineers often face a dilemma: redesign the entire mechanical housing, or find a display that fits the constraints.

Enter the Bar Type LCD Display (also known as Stretched Bar LCD). These ultra-wide aspect ratio screens are cut or masked to fit into long, narrow spaces where information density is critical, but vertical height is limited.

At LCDind, we offer a comprehensive range of Bar Type modules ranging from 2.99 inches to 43 inches. This guide breaks down our lineup by application to help you choose the right module for your HMI project.

1. Compact Series: For Handhelds & Audio Devices (3″ – 4.6″)

For portable devices, smart home knobs, or audio sliders, you need a high-PPI interface that uses minimal power and space. These modules typically use the ST7701S driver and an RGB or SPI interface, making them easy to drive with standard MCUs (like STM32).

• The “Smart Pen” Standard (3 Inch / 2.99″):
  Our 3 Inch (2.99″) Module features a 268×800 resolution. With its 1:3 aspect ratio, it is the go-to choice for translation pens and e-cigarettes.
• The “Slim Audio” Strip (3.71″):
  Need something thinner? The 3.71 Inch Module offers a 240×960 resolution (1:4 ratio), perfect for audio synthesizer sliders or vertical edge displays.
• The “Wider View” (3.99″ & 4.6″):
  For more complex UI with icons, the 3.99 Inch (400×960) and 4.6 Inch (320×960) provide extra width. These are ideal for infusion pumps and rack-mount audio gear where readability is key.

2. Automotive & High-Bright Series: For Mirrors & Dashboards (7″ – 11.26″)

The automotive industry is replacing glass mirrors with digital video. These screens require high resolution (for clear video), MIPI/LVDS interfaces (for high bandwidth), and often High Brightness (to combat sunlight).

• The Smart Mirror Standard (11.26″ & 8.88″):
  The 11.26 Inch (440×1920) and 8.88 Inch (480×1920) are built for streaming media rearview mirrors. They feature MIPI interfaces to handle 60fps video feeds with zero latency.
• The “BMW” Ratio (8.8″ LVDS):
  For dashboard retrofits, the classic 8.8 Inch 1280×320 utilizes a robust LVDS interface, ensuring compatibility with many existing automotive systems.
• Sunlight Readable (7.8″):
  For outdoor EV chargers, the 7.8 Inch High Brightness Module shines with 800 nits luminance, ensuring visibility even in direct daylight.

3. Industrial Infrastructure: For Racks & Signage (13.6″ – 43″)

When you move to infrastructure—such as server rooms, metro stations, or factories—you need screens that integrate with PC-based systems (x86) and cover large horizontal spans.

• The 1U Rack Specialist (13.6″):
  Designed for 19-inch rackmount equipment, the 13.6 Inch (1920×168) features an extreme 11:1 aspect ratio. With an eDP interface, it connects directly to industrial motherboards to display server status logs.
• The Public View (43″):
  For subway route maps or supermarket headers, the 43 Inch (3840×720) offers 4K-width clarity. Its V-by-One interface drives massive pixel counts over long distances.

Comparison Table: Choosing the Right Interface

Need Engineering Support?

Driving a non-standard resolution (like 1920×168) often requires specific initialization codes or EDID configuration. At LCDind, we provide the full technical support package.