With the rapid development of science and technology, the development and evolution of displays as core components for human interaction not only reflects the progress of technology, but also reflects the changes in social lifestyles. From early cathode ray tube displays to liquid crystal displays, and now to organic light-emitting diode displays, quantum dot displays, etc., displays have brought us unprecedented visual experience in constant innovation and breakthroughs, and also made displays ubiquitous. 1. Cathode ray tube display (CRT)Cathode ray tube, referred to as CRT (Cathode Ray Tube), was the mainstream display technology in the 1980s and early 1990s. This display technology uses the electron beam emitted by an electron gun to hit the phosphor, excite the phosphor to emit light, and thus form an image. Representatives of CRT displays include IBM's color display and monochrome display. However, due to the large size, heavy weight, high power consumption, and the inability to achieve thinness, CRT displays have gradually been replaced by new display technologies.2. Plasma Display Panel (PDP)PDP, also known as PDP (Plasma Display Panel), entered the market in the late 1990s. It uses the principle of gas discharge to form images by arranging the three primary colors of red, green and blue in a specific way and applying voltage to make them discharge and emit light. PDP displays have the advantages of high brightness, high contrast and rich colors, so they are gradually widely used in the market. Early PDP TVs were expensive due to technical and cost issues and were mainly aimed at the high-end market. PDP's performance advantage is unquestionable, but the biggest problem it faces is that the price of the whole machine remains high and lacks competitive advantages, so it is difficult to popularize.3. Liquid Crystal Display (LCD)Liquid Crystal Display, also known as LCD (Liquid Crystal Display), was the mainstream display technology from the mid-1990s to the early 21st century. LCD uses the optical properties of liquid crystal molecules under the action of an electric field to display images. LCD has the advantages of small size, light weight, low power consumption, thinness, and can achieve high-resolution display. With the development of technology, LCD has also made significant improvements in color, brightness and contrast. However, LCDs have a relatively small viewing angle and slow response speed, which limits the development of LCDs in some high-end application fields. 4. Traditional LED Displays (LED)The evolution of traditional LED (Light Emitting Diode) displays can be traced back to the 1960s, when LEDs were mainly used in simple display devices such as indicator lights and digital displays. With the advancement of technology, the emergence of multi-color LED displays in the 1980s and 1990s further promoted the development of LED displays. By combining red, green and blue LEDs, multi-color LED displays are formed, allowing displays to present more colors. During this period, LED displays began to be widely used in some medium and low-resolution display devices, such as televisions and computer monitors. Entering the 21st century, with the continuous development of science and technology, the quality and performance of LED displays have been significantly improved. High-end LED displays with high brightness, high contrast, and high resolution have gradually emerged and are widely used in billboards, large-screen TVs, high-end commercial displays and other fields.5. Organic Light-Emitting Diode Display (OLED)Organic Light-Emitting Diode, referred to as OLED (Organic Light-Emitting Diode), is a display technology that began to emerge in the early 21st century. OLED uses the optical properties of organic materials under the action of an electric field to realize image display. OLED has the characteristics of self-luminescence, so the colors are bright and the contrast is high. At the same time, OLED has a large viewing angle and a fast response speed. These advantages make OLED have broad application prospects in high-end mobile devices, TVs and other fields. However, OLED has a relatively short lifespan and high manufacturing costs on large-size displays. These problems limit the development of OLED in certain fields.6. Quantum Dot Display (QD)Quantum Dot Display, referred to as QD Display (Quantum Dot Display), is a new type of display technology that has developed rapidly in recent years. QD-Display uses quantum dot materials as backlight sources and has the advantages of high color saturation, high contrast and wide viewing angle. In addition, QD-Display has a fast response speed, high brightness and low power consumption. These advantages make QD-Display have broad application prospects in TVs, monitors and mobile devices. However, the manufacturing process of QD-Display on large size displays is not yet mature, and the cost is high. These problems limit the development of QD-Display in certain fields.7. Mini LED Display (Mini LED)Mini LED display is a new type of display using Mini LED backlight technology. It uses 100~200 micron LED crystals and can produce display screens with 0.5-1.2 mm pixel particles, and the display effect is much better than traditional LED screens. Mini LED display has the advantages of high image quality, wide color gamut, fixed-point drive, high response speed, and excellent stability. It has gradually become an important technical development direction in the field of backlight and direct display. Driven by consumption upgrades, Mini LED is mainly used in display screens, automotive displays, mobile phones, and wearable devices. Since 2018, the application side of Pad, car-mounted, e-sports, and TV (especially TV) has shown a strong interest in Mini LED as a substitute for OLED. With the continuous maturity of Mini/Micro LED technology, major panel manufacturers have taken Mini LED backlight as one of the new backlight evolution directions, resulting in a large-scale increase in the industrialization demand in the application field of Mini/Micro LED and a strong demand for high-end LED chips.8. Micro LED Display (Micro LED)Micro LED is a technology of LED miniaturization and matrixization. Simply put, it is to make the LED backlight source thin-film, miniaturized, and arrayed, so that the LED unit can be less than 100 microns. Like OLED, each image element can be individually addressed and driven to emit light (self-luminous). Micro LED is a new product and new technology for upgrading LED display technology after LED indoor and outdoor display screens and LED small spacing. It has the advantages of "thin filmization, miniaturization, and arrayization" and represents the future development trend of high-end LED.The development and evolution of monitors is a process of continuous innovation and breakthrough. From the early CRT to the current OLED, QD, etc., every technological advancement has brought unprecedented visual experience. However, each monitor technology has its advantages and disadvantages and application scope, so it is necessary to choose the appropriate display technology according to the specific application scenario. Related Tags: LCD Monitor , Touch Monitor    

What should I do if my LCD monitor leaks light? Many friends who use LCD monitors have encountered light leakage on their monitors. Severe light leakage can easily cause eye damage. So, today Selina will talk to you about the causes and solutions for LCD light leakage.   1. Two reasons for light leakage on monitors   The light leakage on monitors mainly occurs on the panel. Some panels are of poor quality or have problems during transportation, which will cause serious light leakage. Such panels will be inspected during the production process and are prohibited from leaving the factory. The performance of panels with light leakage is generally obvious and can be seen in normal use. The common light leakage we see is mainly caused by the frame pressing on the monitor during assembly, which is manifested as a halo around or in a corner, but such light leakage can basically not be found in ordinary use. It can only be seen when the test picture is displayed in a completely dark environment.   2. Light leakage detection method Usually, the light leakage is all around. Adjust the entire screen to completely black, and then look at the display area around the monitor at a 45-degree angle up, down, left, and right to see if it is obviously white and whether there is light coming out of the gap.   3. The principle of light leakage The light leakage phenomenon is caused by the structural characteristics of the LCD screen itself. It is a normal phenomenon to a certain extent. The light leakage will not affect the basic technical parameters of the TV itself, such as brightness, response time, and life. Liu Quanen, leader of the National Digital TV Reception Equipment and Performance Standards Development Working Group, pointed out that due to the different grades of LCD screens, the degree of light leakage is also different. The《General Specifications for Digital TV LCD Monitors》to be implemented on January 1, 2007 clearly stipulates that the light leakage of LCD TVs must be ≤4cd/㎡ under the full black screen. We usually measure the technical parameters of TVs by the three basic TV colors of red, green, and blue. Based on the particularity of LCD TVs, the quality of products should be examined from the five colors of red, green, blue, white, and black when purchasing. In this way, in addition to understanding the basic parameters, it also avoids unnecessary troubles such as bad pixels, bright spots, dark spots, and light leakage when you buy products.     4. Solution to the light leakage problem Since the light leakage caused by the frame basically does not affect normal use, no manufacturer will replace it. Generally, LCD or LED monitors will have slight light leakage during the assembly process, so you don't need to pay too much attention. Brand Monitors rarely have light leakage. The main reason is that they use the best quality panels when purchasing panels, and they are very careful during the assembly process. The design of the monitor is also excellent. Therefore, high-end monitors rarely have obvious light leakage.   If you buy a low-end monitor, there is no need to ask about the light leakage problem, because even if there is, no one will return it to you unless the problem is very serious. But if you buy a higher-end monitor, you must ask about the light leakage problem. After all, you spend a lot of money, and getting excellent service is what you deserve for spending more money.  

  Nowadays, TFT-LCD liquid crystal displays or LCD monitors have become a popular choice for a variety of applications. However, LCD monitors can be divided into two categories: industrial and consumer. While both types of monitors offer excellent display quality, their designs differ. Industrial LCD monitors are often deployed in places such as factories, outdoor kiosks, digital signage, military and naval applications, food processing, and hospitals. On the other hand, consumer monitors are usually used in office and home environments. Here are some comparisons between these two types of LCD monitors:   Durability Since industrial LCD monitors are designed for harsh and rugged application environments, you can expect these monitors to have better durability than consumer-grade monitors. This is one of the first factors that differentiate industrial and consumer LCD monitors. This includes resistance to shock, vibration, and temperature changes. Some embedded displays also meet various standards such as NEMA and IP ratings for protection against water and dust. So, even if you immerse them in water, industrial LCD monitors have specific protection measures.     Readability Issues While commercial monitors remain legible in normal lighting environments, this is not the case if you place them outdoors in direct sunlight. You will find that the screen is black or looks dull when used outdoors. Industrial monitors have some ways to address this issue. If you want to ensure the visibility of the screen, especially in outdoor applications, then the sunlight readability feature is one of the options for industrial monitors. These high brightness display have high brightness and high contrast for better readability.   Custom Designs With consumer , you get standard configurations offered by a specific brand and product model. However, when you use rugged monitors, you can customize them to your specifications. This ensures that the device meets the requirements of any application. This includes size as well as the various features you want to integrate, such as touchscreen functionality, display quality, screen resolution, wide viewing angles, and wide operating temperatures.     High-grade components Another advantage of industrial monitors is the use of industrial-grade components. Such products are more rugged and can withstand challenging conditions such as extreme temperatures, shocks, and vibrations. Better components also improve image quality and the overall performance of the device. Meanwhile, consumer LCDs use mediocre components, especially mid-range components, as they are often deployed in office and home environments.   Mounting options While consumer monitors are often placed on a computer desk, industrial-grade monitors offer a variety of mounting options depending on the application requirements. These include standard mount, rack mount, panel mount, flush mount, and wall mount options. In addition, industrial monitors often have VESA-compliant mounting connections to supplement standard industrial mounting equipment, while consumer-grade monitors are mostly non-VESA-compliant, so you may need special optional mounting brackets to be compatible with other mounting options.       Better product warranty Consumer lcd monitors purchased from retail stores usually have a warranty period of 6 months to 1 year. After the warranty period, if the monitor is damaged and needs repair, you must pay for it yourself. For industrial displays, the warranty period is generally 3 years. Therefore, if there is any problem with the monitor, the supplier will be responsible for repairing or even replacing the device.

Computer monitors are one of the indispensable devices in people's daily life and work. With the continuous advancement of science and technology, monitor technology is also constantly breaking through and innovating to provide users with a better visual experience. This article will introduce some breakthroughs and innovations in computer monitor technology in recent years.   First of all, the improvement of resolution is one of the important breakthroughs in monitor technology. With the popularity of applications such as high-definition video, games and graphic design, users have higher and higher requirements for monitor resolution. The traditional monitor resolution is generally 1920x1080, and now there are 2K, 4K and even 8K high-resolution monitors.   These high-resolution monitors can present more delicate and clear images, allowing users to better enjoy movies, play games or do design work. Secondly, the innovation of display technology has also brought users a more realistic and lifelike visual experience. For example, the application of OLED (Organic Light Emitting Diode) technology enables the display to achieve higher contrast and wider color gamut, presenting more vivid and vivid images.   In addition, the introduction of HDR (High Dynamic Range) technology enables the display to show more brightness and shadow details at the same time, making the image more realistic and three-dimensional. In addition, the emergence of curved monitors is also an important technological breakthrough. Traditional flat-panel displays have certain visual distortion when viewed, while curved displays can provide a more immersive visual experience by matching the curvature of the screen with the viewing distance of the human eye.   Curved displays can make images more three-dimensional and realistic, and can reduce eye fatigue and improve user comfort. In addition, the development of touch screen technology has also brought new application scenarios for displays. Traditional displays need to be operated by mouse or keyboard, while touch screen displays can be operated directly by finger touch, which is more convenient and quick. Touch screen monitors are widely used in devices such as tablets, smart phones and all-in-one computers, allowing users to interact with the devices more intuitively and naturally. Finally, energy saving and environmental protection of displays are also an important innovation direction in recent years. Traditional displays consume a lot of energy during use, and the application of LED backlight technology has greatly reduced the energy consumption of displays. In addition, some monitors also use environmentally friendly materials and low-radiation design to reduce the impact on the environment and human body. In summary, computer display technology has made important breakthroughs and innovations in resolution improvement, display technology innovation, curved displays, touch screen technology and energy saving and environmental protection. The application of these technologies enables users to enjoy a better and more realistic visual experience, and improves user comfort and convenience.   With the continuous advancement of technology, we believe that there will be more breakthroughs and innovations in computer display technology, bringing users a better visual experience.

When it comes to choosing monitors, most users only care about the brand and size, and often ignore the importance of parameters such as the panel, resolution, refresh rate, and color gamut. However, the indicators and parameters of monitors are so complex that it takes some time to learn and master them.「Size」 7/8/9/10/12/15/17/19/22/27 different size of monitors, is that the bigger size the better?Generally speaking, 7-22 inch monitors are suitable for commercial and industrial usage; 24-27 inch displays are suitable for daily office and entertainment; 27-32 inches are suitable for games and editing. The size of the monitor should also consider personal needs and resolution requirements.「Resolution」 1080P/FHD. 2K/QHD, 4-8K/UHDResolution mainly refers to the pixels on the screen. Under the premise of the same unit area, the higher the resolution, the more delicate the display effect. Common ones are 1920×1080 (1K), 2560×1440 (2K), and 3840×2160 (4K). However, it does not mean that the higher the resolution, the better. You also need to consider whether your graphics card can handle it. Generally speaking, 2K is chosen for office games, and 4K is chosen for design and editing.「Refresh rate」 60hz, 144hz, 165hz, 240hzThe refresh rate refers to the number of times the screen refreshes per second. The higher the refresh rate, the better the image stability and transition effect. Generally speaking, 60Hz is the basic standard, suitable for daily use; 144Hz and above are e-sports level, suitable for playing high frame rate games.「Response time」 1m, 3ms, 5ms, 8ms, 10msThe response time of the monitor generally refers to the grayscale response time (Grey to Grey, or GTG). The shorter the response time, the lower the picture delay, and the ghosting phenomenon will be greatly reduced when playing games. The response time of 5ms is completely enough to take into account watching videos, playing small games, and editing. The response speed of 4ms and 3ms is enough to deal with most FPS games.「Color gamut」 100%SRGB. 75%NTSCColor gamut refers to the range of color. Common color gamut standards include sRGB, DCI-P3, Adobe RGB, etc. In industries such as image design, printing, and film and television, color gamut properties are important considerations because they require high color reproduction. For professional design, 100% sRGB color gamut coverage is generally required.「Color accuracy」 AE/JNCD (display and real gap)Color accuracy is an indicator of color accuracy, indicating the deviation between the displayed color and the standard color. The smaller the value, the better. Color accuracy ΔE<2 is the standard for professional displays. The color accuracy of the display can be calibrated by a colorimeter, such as the Red Spider screen colorimeter.「Color depth」   8bit. 10bitIf the color gamut represents the breadth of color, then the color depth represents the color depth, which usually has a depth of 8bit or 10bit. The greater the color depth, the more colors are displayed, which is reflected in the more natural and smoother gradient color transition. In the field of graphic design, it is necessary to fine-tune and calibrate the colors, and at this time, a high-color-depth monitor is needed; in general office and gaming scenarios, an 8-bit color-depth monitor is sufficient to meet the needs.「Screen brightness」Unit: nitsThe higher the brightness of the monitor, the brighter the colors and the better the display effect. Low: 250cd/㎡, enough: 300cd/㎡, very good: 350cd/㎡+「Contrast」 Static contrastContrast is the difference between the brightest white and the darkest black on the display. The higher the contrast, the richer the color levels that can be displayed. Common contrast ratios are 1000:1, 1500:1, and 3000:1. It should be noted that the contrast of the monitor generally refers to the static contrast, and the dynamic contrast does not have much reference value for comparison.「Panel」 OLED > mini LED > IPS > VA > TNThe common LCD panels at present are VA and IPS, and TN has been eliminated. VA has low cost and is more suitable for curved screens; IPS has a wide viewing angle and strong color accuracy, and is the first choice for mainstream monitors. OLED has absolute advantages in contrast and color vividness; while mini LED will perform better in brightness and is cheaper than OLED. IPS is still the mainstream in the market.「Synchronization technology」FreeSync vs G-SYNCThe common G-Sync and FreeSync technologies play an important role in improving the game experience of players. They are both display technologies used to reduce screen tearing, reduce input delay and optimize game fluency.「Interface」 VGA, DVI, HDMI, DP, Type-cVGA and DVI are old interfaces, HDMI and DP are mainstream interfaces, and Type-c is a slightly more expensive interface. If you want a good display effect, it is recommended to choose HDMI2.0 and above or DP1.4 and above.  

  Blurred or unclear fonts on the LED Monitor may be caused by a variety of reasons. Here are some common problems and corresponding solutions:     1. Improper resolution setting: Make sure the resolution of the LCD monitor or LED monitor matches the output resolution of the signal source (such as a computer, media player, etc.). Incorrect resolution will cause blurred images and text. Check the display settings of the device and adjust to the optimal resolution recommended by the display.     2. Refresh rate problem: Too low refresh rate may cause flickering or rolling stripes on the screen, indirectly affecting the clarity of the text. Check and adjust the refresh rate of the display appropriately.3. Screen brightness and contrast: Improper brightness and contrast settings can also lead to poor display effects. Try to adjust the brightness and contrast of the display to an appropriate level to improve the readability of the text.4. Connection cable problems: Using poor quality or damaged video cables may introduce interference and affect the display quality. Check all connection cables to ensure that they are intact and consider replacing them with high-quality cables.5. Hardware failure: Damage to certain components inside the display, such as the driver IC, LED lamp beads, etc., may also cause display problems. This situation usually requires professional inspection and repair.6. Focus adjustment: For some adjustable focus LED modules, make sure the focus is adjusted correctly so that text and images can be presented clearly.7. Software or firmware update: Sometimes, outdated software or firmware versions of the display may also cause compatibility issues. Check the manufacturer's official website to see if there are any software or firmware updates available and follow the instructions to upgrade.8. Environmental factors: Strong external direct or reflected light may also affect the viewing effect. Try to adjust the position of the display or use shading measures to reduce the impact of ambient light.    

In the era of modern technology, touch technology has become an integral part of our daily lives. From smartphones to tablets, from computer monitors to ATMs, touch screens have penetrated every corner of our lives. However, have you ever wondered how these touch screens work? This blog will take you to an in-depth understanding of different types of touch technologies and unveil their mysteries.   Resistive touch screens: Resistive touch screens are one of the earliest and most widely used touch technologies. It consists of two layers of conductive film. When the user applies pressure on the screen with a finger or stylus, the resistance between the two layers of film changes, thereby detecting the touch location. Resistive touch screens are suitable for a variety of environmental conditions, but they have relatively low resolution and are highly sensitive to pressure.And normal will have 4 wires resistive touch screen and 5 wires resistive touch screen, and always will need to use the touch pen to operate. For our monitors, 7-13.3 inch monitors always are standard with Resistive touch screens.     Capacitive touch screens: Capacitive touch screens are one of the most common touch technologies currently available. They work based on the capacitance properties of the human body. This technology covers the screen with a layer of transparent conductive material. When the user touches the screen, the body's charge changes the electric field distribution on the screen, thereby detecting the touch location. 10 points Capacitive touch screens have the advantages of high resolution, fast response speed and multi-touch, and are widely used in devices such as smartphones, tablets and car navigation systems. Based on this reason, now our 15 inch true flat capacitive touch screen monitor is very popular.     Surface acoustic wave touch screen: Surface acoustic wave touch screens use ultrasonic sensors to generate a kind of acoustic surface wave on the screen. When the user touches the screen, the touch position will cause interference generated by the acoustic wave to determine the touch position. This touch technology has high transparency and stability, and can achieve fast touch response. Surface acoustic wave touch screens are often used in scenes such as public information kiosks, exhibition halls and game equipment.       Negative pressure touch screen: Negative pressure touch screen is a newer touch technology that uses a conductive sealing layer and an air pressure sensor. When the user touches the screen, the negative pressure generated is detected by the sensor and converted into touch coordinates. Negative pressure touch screens are characterized by high precision and durability, and can adapt to various environments, such as industrial control systems and medical equipment.     Optical touch screen: Optical touch screens use infrared or near-infrared sensors to detect the touch position. The screen is covered with a set of infrared transmitters and receivers. When the user touches the screen, the propagation of infrared rays is blocked and the touch position is determined. This touch technology is less affected by dust and dirt, and is suitable for use in outdoor environments and harsh conditions.   Conclusion: Touch technology has become a bridge between people and machines, allowing us to interact with technology in a more intuitive and natural way. By understanding different types of touch technology, we can better choose the right touch screen device and enjoy a more convenient and efficient user experience.

LCD (liquid crystal display) is a common flat display technology that uses the optical properties of liquid crystal molecules to display images and text. It is widely used in electronic devices and digital display systems. Its working principle is based on the operation and control of liquid crystal molecules. By controlling the rotation of liquid crystal molecules to adjust the transmittance of light, an image is formed. The display principle of LCD Monitors can be roughly divided into the following steps:   1. Polarization of light (polarizer) Polarizers perpendicular to each other are attached to the outer sides of the two glass substrates of the display screen (mentioned in the previous article), and their polarization directions are perpendicular to each other. When no current passes, the light between the polarizers will be blocked by the first polarizer, so there is no display on the screen. When the current passes, when the light passes through the perpendicular polarizers, the required light source pattern will be transmitted under the action of liquid crystal distortion.   2. Liquid crystal is arranged and distributed under the action of voltage When an electric field is applied to the liquid crystal molecules, they rotate the direction of polarized light. When light passes through the first polarizer, if the arrangement direction of the liquid crystal molecules is consistent with the polarization direction, then the light will be able to pass through the second polarizer and be displayed on the screen.       3. Image display By controlling the conversion of electrical signals and the direction and strength of the electric field, the arrangement and twisting angle of the liquid crystal molecules can be controlled accordingly, thereby achieving pixel-level image control. Then, by adjusting and controlling the loading of different electric fields at different pixel coordinates, the degree of rotation of the liquid crystal molecules will also vary, thus presenting light and dark images and text. In general, LCD display screens mainly involve light polarization, the arrangement and distribution of liquid crystal molecules under the action of the electric field, and the control of the electric field. Through a series of auxiliary components, a stable pattern is finally constructed.

LCD (Liquid Crystal Display) Monitor and Touch Monitor are two different types of displays, and they differ primarily in functionality and usage. Here are the main differences:1. Display Technology: LCD Monitor: LCD monitors use liquid crystal technology to display images. Liquid crystals are optical materials that control the passage of light by changing the arrangement of their molecules to create images. Touch Monitor: Touch monitors are based on LCD display technology but also feature touchscreen capabilities, allowing users to interact directly with the computer by touching the screen. 2. Interaction Method: LCD Monitor: Typically, LCD monitors are used solely for displaying images, and users interact with the computer using external devices such as a mouse or keyboard. Touch Monitor: Touch monitors have touchscreen functionality, enabling users to interact directly with the screen using their fingers or a stylus for actions like tapping, dragging, and zooming. 3. Applications: LCD Monitor: Primarily used for displaying images, text, and videos. Commonly found in offices, homes, and professional applications. Touch Monitor: In addition to displaying content, touch monitors allow for direct interaction through touch. They are widely used in retail, education, entertainment, and special applications like self-service kiosks. 4. Price: LCD Monitor: Typically, LCD monitors are less expensive than touch monitors since they do not include touchscreen technology. Touch Monitor: Due to the additional touchscreen technology, touch monitors tend to be more expensive.   5. Accuracy and Sensitivity: LCD Monitor: LCD monitors are primarily designed for display purposes, and their sensitivity and precision may be lower compared to touch monitors. Touch Monitor: Touch monitors require higher sensitivity and precision to ensure accurate responses to touch inputs.   In summary, LCD monitors and touch monitors differ in terms of interaction method, applications, price, and sensitivity. Users can choose between them based on their specific needs and preferences.