What are the advantages and disadvantages of OLED screens?

1. What is OLED?

OLED English for the full name Organic Light-Emitting Diode, boe 2023 can also be called "organic chemiluminescent diode" or "organic laser display".

Organic LED has the advantages of bright color and low power consumption. The display technology has the characteristics of self-illumination. Through a very thin coating of organic materials and a glass substrate, these organic materials glow when the current is passed through, not only giving the display a large viewing Angle, but also reducing power consumption due to the absence of LED backlight. There's another big feature. BOE displays In the design of the screen application, it can be bent, so it can be used in a wider range of designs, such as curved screens, fingerprint recognition under the screen and so on.

2. How does OLED work

Organic light-emitting diode (OLED) is a kind of current mode organic light-emitting device. oled manufacturer The luminescence intensity is proportional to the injection current through carrier injection and compound luminescence. Under the action of electric field, the holes produced by the anode and the electrons produced by the cathode of the organic light-emitting diode will move, inject the hole transport layer and the electron transport layer respectively, and migrate to the light-emitting layer. When they meet in the luminescent layer, they produce energy excitons, which excite the luminescent molecules and ultimately produce visible light.

3. Advantages and disadvantages of OLED

OLED integrates many problems and advantages in one, such as thin and short products, delicate and sensitive, more vivid colors, power saving and so on.

Today, organic light-emitting diodes (OLeds) are entering the mainstream market of LCD flat panel displays, and it has many characteristics that LCD displays do not:

Self-luminous, wide viewing Angle above 170°.

Fast reaction time (fast response speed, microsecond reaction time ~ 1μs), no residual phenomenon of ordinary LCD display

High brightness (100-14000 CD/m2)

High lumen efficiency (16-38 lumens)

Low operating voltage (3-9V DC) and low power consumption.

 in full color

 Panel design thickness thin (2 mm)

Large size flexible panels can be made

 Large temperature range available

The process is simple and the cost potential is low (30-40% of TFT-LCD).

Small investment amount, easy to achieve economic benefits

The display made by combining the characteristics of the above organic light-emitting diode will not have the problem that the LCD cannot be seen clearly from the side; There will be no LCD shadow and screen jumping; Not only cheap, but also save electricity; Compared with LCD, the color is more vivid and the contrast is more vivid; Full-color panels less than 2 mm thick are only possible with organic light-emitting diodes.