In today’s technological age, displays play an important role in our lives. Whether it is a mobile phone, TV, computer or other electronic device, it is inseparable from the existence of a display screen. Among many types of display screens, LCD displays and OLED displays are the two most common ones. They have significant differences in display principles, display effects, and manufacturing costs. This article will detail the differences between LCD and OLED displays.
First, let’s take a look at the LCD display. LCD is the abbreviation of liquid crystal display. Its main principle is to control the degree of light transmission by controlling the rotation direction of liquid crystal molecules, thereby achieving image display. Liquid crystal molecules rotate under the action of an electric field, thereby changing the degree of light transmission and displaying images. The advantages of LCD displays include bright colors, high contrast, fast response, and wide viewing angles. However, LCD displays also have some shortcomings, such as higher power consumption, insufficient black expression, and larger thickness.
Next, let’s take a look at the OLED display. OLED is the abbreviation of organic light-emitting diode. Its main principle is to achieve image display by controlling the luminous intensity of organic materials. OLED displays are composed of multiple layers of organic materials. When current passes through the organic materials, the organic materials emit light, thereby displaying images. The advantages of OLED displays include self-illumination, no need for backlight, strong black expression, thin thickness, light weight, and low power consumption. However, OLED displays also have some shortcomings, such as shorter lifespan, easy attenuation of blue pixels, and higher price.
As can be seen from the above introduction, there are obvious differences in the working principles, advantages and disadvantages of LCD displays and OLED displays. Below we will make a detailed comparison from the following aspects.
- Display effect: Because the OLED display is self-luminous, it has strong black expression, high color reproduction, and extremely high contrast, and can present a more realistic picture. The LCD display needs a backlight to illuminate the liquid crystal molecules, so its black expression is weak, its color reproduction is low, and its contrast is low.
- Energy consumption: Since each pixel of the OLED display is self-illuminating, it only consumes power when displaying white or bright colors, but does not consume power when displaying black. Therefore, OLED displays have relatively low energy consumption. The LCD display needs to provide backlight all the time, so its energy consumption is relatively high.
- Thickness and weight: Since OLED displays do not require backlight, they can be made very thin and light. The LCD display needs a backlight, so its thickness and weight are relatively large.
- Lifespan: The lifespan of OLED displays is affected by the attenuation of blue pixels. Generally speaking, its lifespan is shorter. The LCD display has a longer life.
- Price: Due to the high production cost of OLED displays, their prices are also relatively high. The production cost of LCD displays is relatively low, so their prices are also relatively low.
To sum up, there are significant differences between LCD and OLED displays in terms of display principles, display effects, and manufacturing costs. LCD displays are suitable for mass production and are mainly used in televisions, computer monitors, mobile phones and other fields; OLED displays are suitable for high-end products and are mainly used in high-end mobile phones, tablets, TVs and other fields. When choosing a display, you need to choose the appropriate display technology based on actual needs and budget.