The RJY journal
Practical insights on display technology, embedded computing and product development.
Ideas. Engineering. Updates.
TFT LCD Displays for Industrial Thermal Label Printers: Operator Workflow and Module Fit
Define a TFT LCD and touch assembly for industrial thermal label printers around operator workflow, host integration, module fit and project validation.
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Linux USB Touchscreen Troubleshooting: A Hands-On evtest and libinput Workflow
Troubleshoot USB touchscreen input on embedded Linux with a read-only evtest and libinput procedure, event interpretation and a reproducible test record.
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OLED Monitor Market Growth in 2026: Implications for Industrial OEMs
Analyze 2026 OLED monitor growth and display investment signals to understand their limits and implications for industrial OEM display sourcing.
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LCD Pixel Clock and Timing Guide: Why Same-Resolution TFT Displays Are Not Always Compatible
Two TFT LCD modules can have the same active resolution and use the same interface family, yet require different controller-board settings. One panel may operate correctly while…
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LCD Ribbon Cable Connector Guide: How to Match FPC, Pitch, Pin Count and Contact Direction
Selecting an LCD module does not end with size, resolution and display interface. The flexible tail and its board-side connector must also fit the product. Two displays…
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MIPI Display Interface vs LVDS: How to Select an Industrial LCD Panel
A MIPI display interface can connect a compact embedded processor to a high-resolution LCD with only a small number of high-speed signal lanes. An LVDS interface display…
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Epaper Screen vs LCD: How to Choose a Display for Monitors, Tablets, and Embedded Devices
An epaper screen can keep a page visible with very little display power and remain readable in bright ambient light. Those strengths make electronic paper attractive for…
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Wireless CarPlay Screen Hardware: An OEM Display Guide for Automotive Head Units
A wireless CarPlay screen looks like one product from the driver’s seat. Behind the cover glass, however, it is a system made from several parts: an LCD, touch sensor,…
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Screen, Touch Screen, or Touch Monitor? How to Choose the Right Touch Display for an OEM Project
Buyers searching for “screen touch screen” are often comparing several different products, even if the search words look similar. One buyer may need a bare touch panel.…
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Seven Segment Indicator vs. TFT LCD: Which Display Should You Use?
A seven segment indicator is one of the most recognizable electronic displays. It can show temperatures, speeds, counts, voltages, prices, timer values and machine parameters with very…
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How to Choose a Display Screen for Raspberry Pi HMI Projects
A Raspberry Pi can turn a display, touch panel and software interface into a working HMI prototype quickly. Connect a monitor through HDMI, start the operating system…
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LCD Display Controller Design for Irregular-Shaped Screens
Round, square, bar-type and portrait LCDs can give a product a distinctive visual identity. However, the unusual front-panel shape is only the visible part of the engineering…
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Normally Black vs. Normally White LCD: What Is the Difference?
A TFT LCD datasheet may describe the display mode as normally black or normally white. These terms sound simple, but they are frequently misunderstood. Some buyers assume…
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