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  • Basic knowledges of computer monitors
    Jun 13, 2024
    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.  
    Balises chaudes : 7-22 inch monitors
    EN SAVOIR PLUS
  • What is the reason for the blurred fonts on the LED display? How to solve it?
    Jun 13, 2024
      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.    
    Balises chaudes : LCD monitor
    EN SAVOIR PLUS
  • Understanding Different Types of Touch Technology – A Window to Explore the Interactive World
    Jun 07, 2024
    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.
    EN SAVOIR PLUS
  • LCD Monitor Display Principle
    Jun 07, 2024
    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.
    EN SAVOIR PLUS
  • Quelle est la différence entre un écran LCD et un écran tactile ?
    Dec 29, 2023
    Le moniteur LCD (affichage à cristaux liquides) et le moniteur tactile sont deux types d'écrans différents, et ils diffèrent principalement par leur fonctionnalité et leur utilisation. Voici les principales différences :1. Technologie d'affichage : Moniteur LCD : les moniteurs LCD utilisent la technologie à cristaux liquides pour afficher les images. Les cristaux liquides sont des matériaux optiques qui contrôlent le passage de la lumière en modifiant la disposition de leurs molécules pour créer des images. Moniteur tactile : les moniteurs tactiles sont basés sur la technologie d'affichage LCD mais disposent également de fonctionnalités d'écran tactile, permettant aux utilisateurs d'interagir directement avec l'ordinateur en touchant l'écran. 2. Méthode d'interaction : Moniteur LCD : généralement, les moniteurs LCD sont utilisés uniquement pour afficher des images et les utilisateurs interagissent avec l'ordinateur à l'aide de périphériques externes tels qu'une souris ou un clavier. Moniteur tactile : les moniteurs tactiles disposent d'une fonctionnalité d'écran tactile, permettant aux utilisateurs d'interagir directement avec l'écran à l'aide de leurs doigts ou d'un stylet pour des actions telles que toucher, faire glisser et zoomer. 3. Candidatures : Moniteur LCD : principalement utilisé pour afficher des images, du texte et des vidéos. On le trouve couramment dans les bureaux, les maisons et les applications professionnelles. Moniteur tactile : en plus d'afficher du contenu, les moniteurs tactiles permettent une interaction directe par le toucher. Ils sont largement utilisés dans le commerce de détail, l'éducation, le divertissement et dans des applications spéciales telles que les bornes libre-service. 4. Prix : Moniteur LCD : En règle générale, les moniteurs LCD sont moins chers que les moniteurs tactiles car ils n'incluent pas la technologie d'écran tactile. Écran tactile : en raison de la technologie d'écran tactile supplémentaire, les écrans tactiles ont tendance à être plus chers.   5. Précision et sensibilité : Moniteur LCD : les moniteurs LCD sont principalement conçus à des fins d'affichage, et leur sensibilité et leur précision peuvent être inférieures à celles des moniteurs tactiles. Moniteur tactile : les moniteurs tactiles nécessitent une sensibilité et une précision plus élevées pour garantir des réponses précises aux entrées tactiles.   En résumé, les moniteurs LCD et les moniteurs tactiles diffèrent en termes de méthode d'interaction, d'applications, de prix et de sensibilité. Les utilisateurs peuvent choisir entre eux en fonction de leurs besoins et préférences spécifiques.
    Balises chaudes : Moniteur tactile Moniteurs LCD
    EN SAVOIR PLUS

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