1. Touchscreen Inaccuracy [ Fault Phenomenon ] A five-wire resistive touchscreen does not perform the corresponding operation correctly when touched on the display screen. [ Fault Analysis and Handling ] This phenomenon may indicate a calibration issue with the resistive screen. The screen calibration program can be run under the following circumstances: (Open the touchscreen … Read more
For smartphones, the screen is crucial! So, what if the touchscreen stops working? You tap here but it jumps there, staring at the screen in frustration but unable to operate it, and when a message from your crush comes in, you can’t reply for ages… Cold sweat drips down your forehead. Don’t worry, if your … Read more
Abstract With the widespread popularity of smartphones, people’s lives have become inseparable from touchscreen devices. However, the security issues of these devices have been largely ignored. In recent years, attacks targeting touchscreen devices have been increasing, posing serious threats to users’ data security and privacy. This article studies touchscreen attacks, focusing on attacks based on … Read more
Search on WeChat Technical Training In most cases, the touchscreen is connected to a PLC, which then connects to the inverter. However, the touchscreen can also connect directly to the inverter without going through the PLC, controlling the inverter’s start, stop, frequency change, etc. Today, we will take the Wecon touchscreen controlling the Mitsubishi D … Read more
Source | Dr. Goose Since the popularization of smartphones, touchscreens have significantly changed our habits of using electronic products. With a simple swipe of a finger, daily entertainment, shopping, and more can be completed on a palm-sized smartphone. But if we rewind 15 years, people back then would have found it hard to imagine that … Read more
Siemens All-Subject + TIA Portal + EPLAN Electrical Drawing Video Recordings for Sale at Low Prices! Chuangkong Education Siemens All-Subject Class Course Introduction Many people encounter situations where the touchscreen cannot be used due to faults while using it. This is mainly because the touchscreen is a relatively precise device, and due to its nature … Read more
Follow the association or click to read the original text to participate in the home appliance survey Cast your most precious vote 1. Types of LCD Screen Interfaces and Cables The LCD screen interfaces are divided into 60HZ, 120HZ, and even higher frequencies like 200HZ and 240HZ. Different frequency driver boards are required, with main … Read more
The thinning of display panels mainly involves using chemical etching and physical grinding to reduce the thickness of the panel module and display glass, meeting the demand for lightweight display products. By thinning the TFT-LCD panel, the following application requirements can be achieved. 1. Use chemical or physical methods to reduce the thickness of the … Read more
The LCD screen is JM12864 or FYD12864 (with font library). I have used both models without issues. 4 rows * 8 columns of Chinese characters = 32 serial communication interfaces P1.5–P1.7, which can be modified according to your circuit. #include #define uchar unsigned char void LCD_ini(); void ascii_change(void); void delay(); void wri_add(uchar com); void wri_dat(uchar … Read more
Substrate glass is one of the important raw materials that make up liquid crystal panels. The key structure of a liquid crystal panel is similar to a sandwich, with two layers of ‘bread’ (TFT substrate and color filter) enclosing the ‘jam’ (liquid crystal). Therefore, making a TFT-LCD panel requires two pieces of glass, used as … Read more