What are the common installation methods of OLED, and what are the differences between them?

 

OLED is a new type of display technology that not only has bright colors, high brightness, and high contrast, but can also achieve curved and flexible displays. In different usage scenarios, OLED can meet different needs in different forms and installation methods. This article will start from the common installation methods of OLED and introduce their advantages, disadvantages and application scenarios in detail, hoping to provide readers with more references and ideas.

 

The installation methods of OLED mainly include the following: dot matrix OLED, COB (Chip On Board) OLED, COG (Chip On Glass) OLED, FOG (Film On Glass) OLED, COF (Chip On Film) OLED, PMOLED and AMOLED . Among them, PMOLED is the abbreviation of Passive Matrix OLED, which refers to passive matrix OLED; AMOLED is the abbreviation of Active Matrix OLED, which refers to active matrix OLED. Next, we will explain and illustrate these OLED installation methods in detail.

 

1. Dot matrix OLED

 

Dot matrix OLED is one of the earliest application forms of OLED technology. Its basic principle is to use multiple LEDs to form a dot matrix, and display images by controlling the on and off conditions of the LEDs. Because dot-matrix OLEDs are less difficult to manufacture and therefore more cost-effective, they are widely used in small-size OLED applications.

 

The main advantages of dot matrix OLED are fast display speed, high brightness, full color and the ability to achieve curved surface display. However, due to its limited resolution, it is not suitable for high-definition video display and complex image display.

 

2. COB (Chip On Board) OLED

 

COB OLED is a technology that places the OLED chip directly on the circuit board, and directly connects the OLED chip and the control circuit board with gold wires or gold wires. Because COB OLED can be directly connected to the display circuit board, it is smaller in size and easier to integrate in various application scenarios. In addition, the manufacturing process of COB OLED is relatively simple, so the cost is relatively low.

 

The main advantages of COB OLED are the vividness of the displayed image, the stability of the display effect and the realization of high resolution. However, because the manufacturing process of COB OLED is slightly complicated, its cost is relatively high, and its application range is not as wide as PMOLED and AMOLED.

 

The main advantage of using COB OLED is that compared with PMOLED and AMOLED, its detailed display effect is better and can be used to display small images; compared with dot matrix OLED, it can achieve high resolution and more realistic display effect , suitable for the display of high-definition videos and complex images.

 

3. COG (Chip On Glass) OLED

 

COG OLED refers to a technology that integrates OLED chips directly on a glass substrate. Its manufacturing process is more sophisticated and complex than COB OLED. The advantage of COG OLED is that it can achieve thinner and lighter displays, but it also requires a higher level of manufacturing technology.

 

The main advantage of COG OLED is that it can achieve high resolution, more realistic and stable display effects, and is suitable for high-end displays and mobile devices. However, due to the difficulty of manufacturing and the relatively high cost, trade-offs and considerations need to be made in application.

 

4. FOG (Film On Glass) OLED

 

FOG OLED is a technology that integrates OLED chips and control circuit boards directly on a glass substrate. The manufacturing process of FOG OLED is similar to that of COG OLED, but its advantage is that it can create thinner and lighter displays and has advantages in curved displays.

The main advantages of FOG OLED are that it can achieve high resolution, more realistic display effects and curved display. However, compared with COG OLED, FOG OLED is more difficult to manufacture and the cost is relatively high.

 

5. COF (Chip On Film) OLED

 

COF OLED is a technology that encapsulates OLED chips on thin films and then attaches them to glass substrates. The manufacturing process of COF OLED is similar to adhesive bonding technology, so the cost is lower and the production efficiency is higher.

 

The main advantage of COF OLED is its lower production cost and its ability to achieve high-resolution and more realistic display effects. However, compared with COB OLED and COG OLED, the packaging process of COF OLED has certain limitations.

 

6. PMOLED (Passive Matrix OLED)

 

PMOLED is an earlier OLED technology. Its display principle is to use the driving method of passive components to divide the image resolution into a dot matrix of rows and columns, and realize the image display through a staggered driving method. Because its manufacturing process is relatively simple, it is widely used in small-size OLED applications, such as watches, MP3 players, etc.

 

The main advantages of PMOLED are low cost, low manufacturing difficulty, fast display speed, and suitable for small-size OLED. However, due to its limited resolution, it is not suitable for displaying high-definition videos and complex images. In addition, the efficiency of PMOLED is low, and due to the interleaved driving method, image persistence may occur.

 

7. AMOLED (Active Matrix OLED)

 

AMOLED is an OLED display structure composed of various materials such as transparent films, controllable substrates, protective films, and OLEDs. It is also one of the most advanced OLED technologies currently. Because AMOLED displays use active matrix driving methods, they have higher resolution, fuller colors, and more realistic display effects.

 

The main advantages of AMOLED are high resolution, full colors, more realistic display effects, fast response speed, curved surface display, ability to save energy, and high reliability. However, due to its complex manufacturing process and high cost, trade-offs and considerations need to be made in application.

 

Summarize

 

Through the above introduction to common OLED installation methods, we can see that each OLED technology has its own advantages, disadvantages and applicable scenarios. Readers can choose different installation methods according to their own needs. In practical applications, OLED technology will be widely used in various fields, such as mobile devices, televisions, automobiles, medical care, security, etc. In future development, OLED technology will continue to be updated, costs will continue to decrease, and the scope of applications will continue to expand.