The B156HW01 V.4 and B156HW01 V.7 are 15.6-inch Full HD LCD screens used primarily in laptops. These models are part of a series from AU Optronics, known for their high-quality displays. Here are the key specifications for both versions: Key Specifications (for both V.4 and V.7 models): Size: 15.6 inches (diagonal) Resolution: 1920 x 1080 pixels (Full HD) Panel Type: TFT-LCD (Thin Film Transistor Liquid Crystal Display) Backlight Type: LED (Light Emitting Diode) Aspect Ratio: 16:9 (standard widescreen) Brightness: Typically around 220-250 nits Color Gamut: Usually 45% NTSC (standard color coverage) Viewing Angle: 45/45/15/35 (Left/Right/Top/Bottom) (approximate) Connector Type: 30-pin eDP (Embedded DisplayPort) Refresh Rate: 60Hz (standard refresh rate) Surface Treatment: Typically Glossy (but can be matte depending on the model) Contrast Ratio: Around 500:1 Key Differences Between V.4 and V.7: B156HW01 V.4: One version of this display model, typically designed for laptops that require a 30-pin eDP interface. B156HW01 V.7: A later revision, often with improvements in terms of power efficiency, color accuracy, or durability, but generally very similar to the V.4 version in terms of performance and size. Common Use: These displays are commonly used as replacement screens for laptops that require a 15.6-inch Full HD panel. It's crucial to match the exact version number (V.4 or V.7) to ensure compatibility with the laptop's hardware and connector. Compatibility: Connector Type: Both models use a 30-pin eDP connector, so ensure your laptop or device has this interface. Full HD Resolution: Perfect for laptops requiring 1920 x 1080 pixel resolution for sharper, clearer displays. Key Features: Full HD resolution provides a crisp and sharp image, suitable for a range of tasks, from office work to entertainment. LED backlight for energy efficiency and a slimmer profile. Wide viewing angles and decent brightness levels make it suitable for various environments. Available in both glossy and matte finishes, depending on the model. WE APPRECIATE YOU BUSINESS.