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Capacitive and resistive touch panel are the two main types of touchscreen technology, each exhibit unique characteristics in multiple aspects. Capacitive touch Panel（CTP） The structure of CTP mainly consists of a glass panel, a conductive layer (such as ITO), an insulating layer (such as tempering glass or plastic), and another conductive layer. Its working principle is based on capacitive sensing, achieving touch functionality through human body current sensing. When a finger contacts the metal layer of the touch screen, a coupled capacitance is formed, and the precise location of the touch point is determined by calculating the current ratio flowing through four electrodes.   Advantages of capacitive touch: √  Support for multi-touch function. √  High light transmittance >85% and vivid colors. √  Fast response time is less than 3ms. √  Surface cover covers such as tempered glass of hardness up to 7H, offering excellent scratch resistance and durability. √  Endurance against various contaminants like water, fire, radiation, static electricity, dust, or grease. √  High life expectancy: each touch point capable of enduring over 50 million touches and maintaining cursor stability after calibration. Disadvantages: • High cost. • Incapability being operated with fingernails or insulating materials for touch input. • Unavailability use with gloves or when the screen is wet. • Easy interference from surrounding conductors and temperature variations.     Resistive touch panel(RTP) RTP, consist of a glass or organic glass base coated with a transparent conductive layer (ITO film), and a hardened and scratch-resistant cover whose inner surface is also coated of ITO layer. There are many tiny transparent insulating points between the two layers of conductive layers to separate them.   Resistive touchscreens operate based on the principle of resistance, determining touch location through pressure sensing. When the screen surface is pressed, the top layer is compressed, causing the two ITO layers to contact each other, resulting in a change of resistance value. The controller calculates the coordinates of the touch point based on the detected resistance change and performs corresponding operations accordingly. This technology requires physical pressure on the screen to register a touch.   Advantages of resistive touch: √ Lower cost √ Good response sensitivity and reduced susceptibility to misoperations. √ Ability to withstand various harsh environments, resisting dust and moisture. √ Compatibility perform with any object for touch input, non-conductive objects like pen.    √ Perform feasibility with gloves, or wet screen. Disadvantages: • Support for single-touch only • Slower response speed • Inferior light transmittance compared to capacitive screens • Outer film susceptibility to scratches, potentially rendering the touchscreen unusable • Limited lifetime Expectancy: hitting touch about 1 million and a strokes touch about 100,000 times for 4-wire RTP as an example.   In summary, CTP touch and RTP touch each have their strengths and weaknesses, suitable for different application scenarios.  For instance, capacitive touch may be more suitable for situations requiring high precision, vivid color reproduction, and fast response times, such as smartphones and tablets. On the other hand, resistive touch may be more appropriate for cost-sensitive environments, harsh conditions, or operations involving water or while wearing gloves, such as in industrial equipment and ATMs.  

The interface types used for LCD displays are diverse and versatile, including RGB, MCU, LVDS, and MIPI. Below is a brief overview of the structural principles of these interfaces:   RGB Interface: Its transmits signals for the red, green, and blue color components, which are the fundamental elements for constructing color images. Requires signals such as HSYNC (Horizontal Synchronization Signal), VSYNC (Vertical Synchronization Signal), ENABLE, CS (Chip Select Signal), RESET, and sometimes RS (Register Select Signal). It is primarily used in small to medium-sized LCD display devices, such as 2.0", 2.31", 2.4", 2.8", 4.3", 5.0", 7.0", 9.0", and 10.1" screens.   MCU Interface: It is mainly used in the field of microcontrollers. Widely adopted in smaller-sized mobile phones, featured of cost-effectiveness. Standardized as the 8080 bus standard proposed by Intel, also referred to as DBI (Data Bus Interface), MPU (Microprocessor Interface), or CPU Interface. It includes two modes: 8080 and 6800, differing in timing. It supports data transmission of 8, 16, 18, and 24 bits. Its typical signals such as WR (Write Signal), RD (Read Signal), RS, RESET, and CS. Advantages: simple and convenient control, eliminating the need for clock and synchronization signals. However, it consumes GRAM, limiting its use to smaller screens, typically 4" and below, such as 2.0", 2.31", 2.4", and 2.8" screens.   LVDS Interface: LVDS (Low Voltage Differential Signaling) is a new generation of high-speed, long-distance transmission interface. LVDS interface is also recognized as a low-voltage differential signaling technology interface developed to overcome the drawbacks of TTL-level transmission, such as high power consumption and EMI (Electromagnetic Interference) for broadband high-rate data transmission. Utilizes very low voltage swings (approximately 350mV) for differential data transmission over two PCB traces or a pair of balanced cables. Compared to TTL interfaces, LVDS requires fewer cables, offers higher speeds, and consumes less power. LVDS interface is widely used in high-resolution LCD displays and high-speed transmission applications.   MIPI Interface: MIPI (Mobile Industry Processor Interface) is designed specifically for mobile devices. MIPI Standards is a newly standard with ongoing modifications and improvements. Mostly its mature interface applications include DSI (Display Interface) and CSI (Camera Interface). CSI/DSI refer to their respective applications for cameras or displays, both having complex protocol structures. MIPI interface an transmit multiple data and control signals per clock cycle, making it faster and more capable than TTL and LVDS interfaces. It is widely used in modern smartphones, tablets, and other mobile devices.   Each of these interfaces has unique structural principles, suitable for different application scenarios and device types. When selecting an LCD screen interface for customization, the choice is primarily determined by the client's motherboard interface. Through software driver matching, the screen can be activated, realizing the product's display solution.

In a world where electronic devices are becoming more compact, functional, and design-sensitive, the need for tailored components has never been greater. Among these, LCD modules play a vital role—not only as the primary interface between human and machine, but also as a core part of the product’s performance and identity.   At Shengfeng, we specialize in manufacturing and customizing LCD products for a wide range of industries, from industrial automation and medical diagnostics to consumer electronics and smart home devices. Our focus is on helping customers find the perfect display solution that fits both the technical and aesthetic needs of their products.   The Value of Custom LCD Displays   Generic displays can get the job done, but they often come with compromises—whether in size, brightness, viewing angle, or compatibility. A custom LCD, on the other hand, gives product designers the freedom to align every aspect of the display with their functional goals and brand requirements.     Take, for example, a 2.4 inch TFT LCD module. For some, it’s the perfect balance of size and visibility, ideal for portable equipment or handheld control systems. Others may benefit more from a 128x64 graphic LCD display, which offers a sharp and efficient way to convey data in tight spaces, such as measurement tools or medical monitors.     We also provide custom monochrome LCD panels for applications that prioritize low power consumption, high contrast, and long-term stability—such as thermostats, digital counters, or industrial timers. These displays can be designed with specific segment layouts, icons, or backlight colors to match your user interface.     What Shengfeng Offers   With years of experience and a strong technical team, Shengfeng offers more than just standard models. We support full customization, including:   * TFT, graphic, and segment LCD displays * Interface types such as SPI, I2C, and parallel * Display formats like COG, COB, or FPC * Touch panel integration (resistive or capacitive) * Wide operating temperature ranges and sunlight-readable options * Custom backlight, logo, PCB design, and pin configuration   Whether you need a slim, sunlight-readable TFT screen for outdoor use, or a stable, low-power graphic LCD for factory automation, we can deliver a solution tailored to your project.