There are several types of LCD LCD screens:
1, segment code LCD screen
Segment code LCD screens were developed in Japan in the early days and were introduced to China in the 1980s. They mainly replaced LED digital tubes (composed of 7 pen segments, used to display numbers 0-9), such as calculators, clocks, etc., and the display content is all numbers. , Is also relatively simple. There are also many different names, such as pen-segment LCD screens, small-size LCD screens, 8-character screens, and patterned LCD screens.
LCD display
2, dot matrix screen
Dot matrix screens are divided into LCD dot matrix and LED dot matrix screen. Simply put, there are many dots in a range and are called pixels. Dot matrix LCD pixels are composed of fixed-size dots. These dots are arrayed. Arrangement; for example, 12864 is composed of 128 horizontally X vertical 64 points.
3, TFT color screen
TFT is a classification of LCD, which is the prototype of all current LCD screen improvements. Like the screens used on older mobile phones before, they also belong to the dot matrix category. They pay attention to pixels, and the color in it is the concept of color scale. The color gradation is an index standard that indicates the brightness of the LCD screen, which is commonly referred to as the color index. There are generally three color qualities commonly seen on the market: 256 colors, 4096 colors and 64K (ie 65536) colors or even higher 260,000 colors. The display effect of different color quality is different. The display is divided into three categories: ordinary text, simple images (images like cartoons, mainly menu charts and drawn standby images) and photo images. As for users who have higher requirements for photo quality, 64K colors are of course a better choice.
4, LED screen
The LED screen is simple. It is a screen made up of many LED lights. The signboards on Main Street and Xiaogang are all like this.
5, OLED screen
OLED screen is to display the image through the self-luminescence of pixels. From this perspective, OLED screens are more advanced in technology than LCD screens. In addition, the OLED screen can be made thinner in thickness, which is conducive to the thickness control of the whole machine.
