At the beginning of LCD technology, due to the high price, LCD panel manufacturers launched a simplified and affordable version - TN LCD, which was accompanied by natural defects of low color display quality and small effective viewing angle. Later, IPS technology was introduced into LCD, which improved the above defects, displayed accurate colors and had a wide visual viewing angle. It can be said that IPS is an upgraded version of TN technology.   Below, we will introduce the difference between TN LCD and IPS LCD from different angles.   1. TN LCD VS IPS LCD: Narrower viewing angle   The liquid crystal molecules of the TN panel are located in the vertical direction, and light is emitted around the vertical area. Therefore, we can only get good visual quality within a very limited angle, and obvious color distortion will occur at an inclined angle.   In contrast, in the IPS panel, the horizontal arrangement of liquid crystal molecules is conducive to the emission of light at any angle, thereby achieving a wide effective viewing angle. Both vertical and horizontal angles can reach 170 degrees to nearly 180 degrees, so we also call IPS LCD a "full viewing angle" display. TN screen will be whitish when viewed from the side. This is why when several people sat in a row to watch the computer in the past, the people next to them could not see clearly.   2. TN LCD screen VS IPS LCD screen: lower grayscale   Grayscale is an indicator used to measure the ability of color transition.   TN LCD (6bit) can display 2.62 million colors, while IPS LCD (8bit) can display 16.77 million colors. In the transition from black to white, IPS can display more colors, so the transition performance is more natural and smooth. It can be seen that the color transition of IPS screen is more delicate.   3. TN LCD screen VS IPS LCD screen: faster response time   Due to the high contrast and wide color gamut of HD, IPS panel requires longer response time than TN panel, and the general response time is about 30ms. When displaying dynamic HD pictures, IPS is prone to ghosting and jitter. TN screen benefits from the lower number of output gray levels, fast deflection speed of liquid crystal molecules, and faster response speed. The response time of conventional TN module is 10-25ms. Some TN screens can achieve a response time of 1ms without ghosting. They are often used as professional e-sports screens. Through fast response, TN screens can losslessly present the details of fast-changing scenes.   Different response times have different dynamic image display capabilities   4. TN LCD screen VS IPS LCD screen: Poor color reproduction ability   Grayscale and color mainly determine the color reproduction ability. Compared with TN panels, IPS panels have more grayscale, more delicate imaging, and delicate and realistic color image reproduction. As shown in the figure below, the four corners of the image displayed on the TN panel are pure black without details. IPS can display multiple color levels.   5. TN LCD screen VS IPS LCD screen: Low screen hardness   TN screens are soft screens. When you press the TN panel with your finger, water ripples will appear on the surface, but after the pressure is released, the surface will quickly recover. IPS screens are hard screens. The surface of IPS LCD screens is protected by a layer of high-hardness transparent resin film, so it can remain intact when touched, and there will be no water ripples on the screen surface. In addition, if we observe the screen with a magnifying glass, we will find that the pixels are distributed to the left like fish scales. Due to the horizontal arrangement of liquid crystal molecules, under the same external pressure, the restoration speed of IPS is about 10 times faster than that of TN with vertically arranged molecules.   As a custom led display manufacturer, most of the LCD panels we use are IPS screens, but if customers need TN screens, we will also purchase them. In particular, the 7 inch to 13.3 inch HDMI monitors we currently produce are basically IPS screens, which are also very popular! So if you are looking for the raspberry pi monitors or touch pc monitor, just feel free to contact with OSCAN!

With the increasing popularity of self-service cashier terminals in various industries, our LCD monitors, especially touch monitors, are particularly popular.   The following article will tell you why customers choose our 21.5inch monitors for their self-service payment equipments.   Reason 1: The size is very suitable   21.5 inches, this size is neither too big nor too small, and is very suitable for the current smaller self-service terminals.   Reason 2: High resolution and high brightness   Our lcd monitor 22 inch has a resolution of 1920x1080 and a brightness of more than 300cd/m2, which can present users with good picture effects.   Reason 3: Perfect combination of HDMI and VGA interfaces   Our 21.5 inch monitor has both HDMI and VGA interfaces, which can meet the connection requirements of different devices of customers.   Reason 4: Capacitive touch screen, easy to operate Our 21.5 inch touch screen monitor with 10 points capacitive touch, which makes it very convenient for users to operate, as if it has injected a new application soul into the self-service terminal.   Reason 5: Graphic design, beautiful and generous   Our lcd monitor 22 has a flat design, which is not only beautiful and generous, but also easy to waterproof and dustproof, which is very helpful for the cleaning and maintenance of the self-service terminal.   Reason 6: 75x75mm VESA hole, supports wall hanging   To sum up the above, if you have a self service payment kiosk project demand, please consult our 22 inch touch display, you will find more advantages that you can't imagine!