How to choose the display screen is enough

We all know the truth, but not everyone knows the display parameters. Many people in the face of the display parameters, do not know how to choose. < / P > < p > today I’d like to talk about those parameters related to the display screen. I believe that after reading this article, you can select the screen according to the display parameters. < / P > < p > the panel material, resolution, color display and other parameters of the display have a great impact on the final image effect of the screen. Let’s talk about the panel material first. < / P > < p > at present, most of the display panels on the market are liquid crystal panels. Because the liquid crystal material itself does not emit light, there is a backlight plate and reflective film on the back of the LCD to provide the background light source. Most LCD panels use TFT drive mode. And according to the different arrangement of liquid crystal molecules, it can be divided into TN, VA, IPS three panels, each of which has its own advantages and disadvantages. The following is a detailed description. < / P > < p > TN panel: the full name of this panel is twisted nematic panel. It has the characteristics of fast response and high refresh rate, which is more suitable for E-sports display. However, this kind of panel has weak visual angle and weak color display, so it is not suitable for people with high color requirements. < / P > < p > VA panel: this type of early panel is designed to make up for the disadvantages of TN panel, which improves the visual angle and reduces the response speed. In the later research and development, the contrast and response time were gradually improved. At present, the biggest advantage of this kind of panel is that the contrast is very high, and the display is pure black background. However, the disadvantages are obvious: 1) the response speed of gray scale is still lower than that of VA panel; 2) the uniformity of screen color is weak, and there will be color deviation in some scenes. Therefore, this kind of panel is suitable for the entertainment display of middle end and sub flagship, and it will be difficult to use it as a professional display. < / P > < p > IPS panel: this kind of panel is called in plane switching in English. It was born to solve the problems of low visual angle and poor color display quality of TN panel. It is currently the most widely visible panel technology, and solves the problem of color offset, making the color display more accurate. Therefore, this kind of panel is very popular in the scene with high requirements for color accuracy. The general flagship products will choose IPS panel to ensure the color display effect of the display. < / P > < p > resolution is a fixed value in LCD, which is determined by the number of cells in the LCD layer. 1080p, 2K, 4K and other parameters indicate the resolution. It represents the number of horizontal and vertical pixels. < / P > < p > a display panel with a screen scale of 16:9 and a resolution of 2K. In the horizontal direction, the display panel has 2560 pixels, while in the vertical direction, it has 1440 pixels. The total pixels are 2560 * 1440 = 3686400. Similarly, the display panel with a resolution of 4K has 3840 pixels in the horizontal direction and 2160 pixels in the vertical direction. The total pixels are 8294400. < / P > < p > it should be noted that the resolution parameters do not change with the screen size. Therefore, with the same screen size, the higher the resolution, the more pixels the panel has. The fine degree and display quality of the picture will be better. < / P > < p > through calculation, we can find that under the same size and screen proportion, the 4K resolution panel is more than 4.6 million pixels more than the 2K resolution panel, and 6.2 million more pixels than the 1080p resolution panel. < / P > < p > the display effect of high-resolution display is not a simple linear improvement. It’s right to choose a display with higher resolution when other prerequisites remain unchanged. < / P > < p > through the previous knowledge, we know that a display with high resolution and using IPS panel can bring better picture effect. Although the effect of the picture is good, it is still unclear how it is displayed. Next, let’s talk about some parameters that can represent the color performance of the screen, so that you can see the quality of the screen more intuitively. Color depth: color depth, unit bit. It refers to the color level, 8 bit has 256 gray scales, providing 167000 colors. 10bit has 1024 grayscale, providing 107 million colors. The more gray scale is, the more fine the color is, the more natural the color transition will be, and the quality of the display panel will be higher. < p > < p > gamut: Currently, there are three main color gamut standards: sRGB, Adobe RGB and NTSC. SRGB color gamut is jointly developed by Microsoft and HP. It has the most extensive applicability. At present, most digital devices support sRGB display; NTSC has the most extensive color coverage, which is based on the standard set up by broadcast and television transmission protocol. When buying a monitor, movie lovers can focus on the performance of the gamut coverage; Adobe RGB is a color gamut standard launched by Adobe company, and professional designers can pay more attention to the performance of the display under the color gamut. The higher the gamut value of < / P > < p > is, the richer the color performance will be. The display with high color gamut should reach 100% sRGB or 72% NTSC gamut coverage. < / P > < p > deltaE: it refers to the deviation value between the display panel color and the standard color, and can also be written as △ E. This value can be improved by color correction, but it will be affected by hardware quality. Generally speaking, when the average △ e value is less than 3.2, the human eye can hardly distinguish the color difference. < / P > < p > if you want to buy a display with excellent display effect, you can determine the final display effect by comparing the specific values of these three parameters on the basis of IPS panel and high resolution. < / P > < p > I believe that after you understand these common color parameters, you will know how to choose a display with good display effect. However, only a powerful panel does not guarantee that you have a better use experience. < / P > < p > because the panel should be embedded into the monitor, if there are four black thick borders on the edge of the display screen, the appearance will not be very good. In order to ensure the final use experience, it is wise to choose a monitor with narrow frame. < / P > < p > Philips 279c9 is a recently launched frameless display. When using this monitor, the four sided frameless design allows better presentation of high-quality images and more immersive user experience. < / P > < p > the panel of this monitor is also powerful. It is equipped with 27 inch IPS panel with 4K resolution, and has excellent display ability. On the color performance of the screen, it has 10bit color depth, can display 1.07 billion colors; supports 109% sRGB and 90.7% NTSC; the average △ e value is 0.75, which meets the needs of accurate color display. < / P > < p > it is worth mentioning that this monitor provides a type-C interface, which greatly increases the user experience. Although 4K resolution can bring more delicate display picture, the requirement of data transmission is also improved. When using hmdi1.4 connection, the highest refresh rate is only 30Hz at 4K resolution. The type-C interface uses dp1.4 transmission protocol, and its maximum transmission rate is 32.4gbps, which is about four times of hdmi1.4. At the same time, the type-C interface can also transmit power and data while transmitting video signals. Only one type-C cable is connected to the notebook to realize the functions of monitor signal access, notebook charging and display USBhub expansion, which improves a lot of convenience in daily use. < / P > < p > four sides without borders ensure the final effect of the screen display, while the type-C interface optimizes the daily use experience. If you haven’t decided which display quality you want to buy, consider Philips 279c9. Continue Reading865 optimization is different? These mobile phones should teach you a lesson!