How To Select LCD Panel

- Mar 17, 2020-

Working in the office, eating out shopping, returning home, monitor products are everywhere. We have entered the display era, and display products are used everywhere. Computers, televisions, mobile phones, advertising machines, POS machines ... Many of these display products use LCD screens. So how do we choose the LCD display?

 

I. Size

Size is a very important factor in panel selection. The size of an LCD screen generally refers to the diagonal size of the LCD screen. So how do you know the size of the panel by looking at the model of the panel factory?

 

How to select LCD panel, take N156B6-L0B as an example

 Take a 15.6-inch screen from Taiwanese panel factory Chi Mei (Innolux) as an example. N156B6-L0B is the model of the panel manufacturer, of which 156 represents a 15.6-inch LCD screen. The LCD panel model of the general panel factory is not on the display case, but on the label on the back of the LCD panel.

 

2. Resolution

Resolution is also a very important parameter. Resolution refers to the number of pixels that can be displayed on the screen. Common resolutions for notebook panels are 1366 * 768, 1920 * 1080, 1024 * 600, 1600 * 900, 1280 * 800, and so on. With the same panel size, the higher the resolution, the more pixels that can be displayed, and the better the display effect. So how to look at the resolution of the model of the panel factory? Generally, the panel model of each panel factory has a specific letter combination to represent the resolution, such as Chi Mei (Innolux) N156B6-L0B, the B behind the size represents The resolution is 1366 * 768. Innolux's N173FGE-L23, F stands for a resolution of 1600 * 900.

 

3. Classification

According to different backlight sources in the market, LCD panels are divided into LCD screens and LED screens. In fact, the LCD screen is a conventional liquid crystal panel with a CCFL (cold cathode fluorescent tube) as a backlight source, and the LED screen is a liquid crystal panel with a light emitting diode as a backlight source. LCD screens are now used relatively rarely and are gradually being replaced by LED LCD screens. N156B6-L0B is the LED screen.

 

4. Signal interface

The signal interface parameter of the notebook panel is a very important parameter in the panel parameters. Generally speaking, the LVDS interface and the EDP interface are the more commonly used interfaces in the notebook panel. The LVDS signal interface has 30 and 40 pins, and the EDP signal interface also has 30 pins And 40 stitches. In addition, interfaces such as MIPI and TTL are also widely used in LCD panels. Innolux's N156B6-L0B laptop screen belongs to the LVDS interface, where L refers to the LVDS interface type.

 

5. Contrast, brightness, color gamut

The parameters of contrast, brightness, and color gamut are used to measure the screen display effect of the display. Outdoor display products require higher brightness and contrast. Contrast is the ratio of white and black displayed on the display. Contrast reflects the vividness of the colors. Color gamut refers to the method of encoding a color, and also refers to the sum of colors that a technical system can produce. Currently, the color gamut of LCD screens is much wider than previous CRTs.

 

6. Reaction time

The response time of the display screen is also the response speed (response time). Generally, gaming notebooks have extremely high requirements for response time. The shorter the response time, the less smearing occurs when watching dynamic pictures. The response speed of this screen of N156B6-L0B is 3/8 milliseconds, which belongs to the normal range.

 

7. Viewing angle

When the screen is viewed at different angles, the display effect of the screen is different, because the LCD panel has a range of viewing angles. The angle of the general display is 45/45/20/45 (left and right, up and down), and the viewing angle of the current IPS screen on the market reaches 89/89/89/89 (left and right, up and down), which can be said to be quite wide Already.