The principle of OLED transparent screen

The principle of OLED transparent screen is mainly based on the light-emitting characteristics of OLED (organic light-emitting diode). This screen uses transparent electrodes and organic material layers to excite carriers in the organic material layer through current, causing them to enter the luminescent material and undergo charge recombination, thereby releasing light energy.

Specifically, the OLED transparent screen is composed of two layers of transparent electrodes and an organic material layer. The organic material layer includes a multi-layer structure such as a luminescent material, a carrier injection layer and a charge transport layer. These layers are all applied on the transparent substrate in an extremely thin manner. Each OLED unit can be regarded as a light-emitting diode of three primary colors: red, green, and blue. By adjusting the brightness of these three colors, the desired color can be achieved.

When current is applied to the organic material layer through the transparent electrode, electrons and holes are injected from the cathode and anode respectively into the electron and hole transport layers. Then, electrons and holes migrate to the light-emitting layer through the transport layer and meet in the light-emitting layer to form excitons. The excitons excite the luminescent molecules, which undergo radiative relaxation to emit visible light. Since the OLED transparent screen uses a transparent substrate, light can pass through the display screen, allowing the environment behind the screen to appear, giving users a more natural and realistic visual experience.

In addition, OLED transparent screens have the advantages of high contrast, high brightness, wide color gamut, and can be bent and curled, providing designers with more creative space. Therefore, OLED transparent screens have broad application prospects in commercial displays, advertising promotions, product releases, transportation, conference rooms and exhibition halls, etc.

In short, the principle of OLED transparent screen is mainly based on the luminescence characteristics of OLED. The carriers in the organic material layer are excited by current, causing them to enter the luminescent material and undergo charge recombination, thereby releasing light energy. This kind of screen has the characteristics of high transparency, bright colors, energy saving and environmental protection, and long service life, providing more choices and possibilities for various application scenarios.