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Analyze the difference between lcd screen and oled screen part one

Analyze the difference between lcd screen and oled screen part one

Apr 19, 2023

The screen is an important part of the mobile phone, just like a human face, presenting visual images to users through the fineness and resolution of colors. At present, the mainstream materials of the screens used in mobile phones are the traditional LCD screens with mature technology, and the OLED screens that use the latest technology and are popular in the mobile phone industry. So what is the difference between these two screens?

 

Principle

The light-emitting principle of LCD mainly relies on the backlight layer. This part is usually composed of a large number of LED backlights. It only has one function, that is to display white light, but white light cannot form an image, so a layer of color is added to the white backlight layer. After the white backlight penetrates the colored film, it can display color, but the ratio of red, green and blue needs to be adjusted. The size of the voltage of the two poles controls the arrangement of the liquid crystal molecules, so that the larger opening and closing will emit more light, and the smaller opening and closing will emit less light, so as to control the amount of white light, so that the red, green and blue can be adjusted. match.

 

OLED does not need a backlight layer like an LCD screen, nor a liquid crystal layer that controls the amount of light. OLED can emit light by itself, so OLED touch screen is like a screen with a combination of countless small colored light bulbs.

 

Thin and Thick

The LCD screen is composed of a backlight layer and liquid crystal, which makes the thickness much thicker than OLED. OLED screens can be less than 1mm thick and are also lighter. In this regard, OLED will be lighter than LCD, and the mobile phone will feel more textured.

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