Everyone knows that a screen is composed of individual pixels, and what we call "1920 × 1080" actually refers to the number of vertical and horizontal pixels. The essential difference between OLED and LCD lies in their display principles. OLED can be simply understood as composed of countless red, green, and blue light bulbs that can emit light on their own, and macro display can be controlled by controlling the brightness and brightness of each bulb. And there will be a backlight panel on the back of the LCD, which displays different colors by passing through "filter paper" of different colors. ''

The working principle of LCD (Liquid Crystal Display) is to use liquid crystal molecules to change their alignment direction under the action of an electric field, thereby controlling the passage of light and achieving image display. LCD screens require a backlight source to illuminate the liquid crystal layer, and display is achieved by modulating the backlight source through the liquid crystal layer.

OLED (Organic Light Emitting Diode) is a self luminous display technology where each pixel can independently emit light without the need for a backlight source. When current passes through organic materials, light is emitted, and the brightness is adjusted by controlling the magnitude of the current.

Simply put, LCD is like a transparent piece of paper that requires sunlight or light to see the handwriting, while OLED is like a luminous panel that can emit light on its own.

What are the advantages and disadvantages of LCD and OLED screens compared?

The advantages of LCD are very obvious. Firstly, it does not have color cast like OLED. Secondly, LCD generally has full DC dimming or high-frequency PWM dimming. Therefore, another recognized advantage of LCD is that it is very eye friendly. In addition, LCD screens have a longer lifespan, even if it takes four to five years, it is difficult for the screen to burn out even if it turns yellow. LCD screens are more durable. ''

OLED screens have strong adaptability to new technologies, but they also have some drawbacks, such as easy burn-in, color cast, and relatively short lifespan. The burn-in phenomenon of OLED screens refers to the possibility of permanent pixel damage when a static image is displayed for a long time, resulting in residual images on the screen. And LCD screens do not have this characteristics of LCD OLED display principle: The backlight illuminates the liquid crystal layer, and the liquid crystal layer modulates the light to emit light independently. Each pixel can emit light independently. Advantages include eye protection, long lifespan, low screen burn-in, low cost, high contrast, fast response speed, and bright colors. Disadvantages include low contrast, slow response speed, uneven color, easy screen burn-in, color cast, and relatively short lifespan. Applications include televisions, computers, mobile phones, smart watches, VR devices, etc

From the table, we can see that LCD and OLED each have their own advantages and disadvantages, and there is no distinction between good and bad.

Is OLED or LCD better for mobile phone screens?

In fact, both types of screens have their own advantages and disadvantages. Although it cannot be directly measured by good or bad, what is certain is that due to the current development of smartphones towards full screen displays and the popularity of under screen fingerprints

From a technical perspective, OLED screens are the better choice because they are lightweight, have good display effects, and save power, all of which are means to enhance the user experience. From the user's perspective. ''

We also know that LCD technology has been developing for a long time and is more mature in terms of technology. Even with lower cost control, it can still display more natural and accurate color effects. ''

There is no standard answer to this question, and it needs to be judged based on individual usage needs and preferences.

If you are a user who pursues eye protection and durability, you can choose an LCD screen. LCD screens have better eye protection effects, longer lifespan, and are less prone to screen burn-in.

If you pursue the ultimate display effect, you can choose OLED screen. OLED screens have higher contrast, faster response speed, and brighter colors, which can bring a more immersive visual experience.

What are the future development trends of LCD and OLED screens?

In fact, there are significant differences between LCD and OLED in terms of display principles, energy consumption, and forms. OLED is relatively better as its light-emitting principle is more advanced. ''

With the continuous development of technology, both LCD and OLED screens are constantly advancing. The cost of LCD screens is decreasing, and there are also improvements in image quality and response speed. The lifespan of OLED screens is also constantly extending, and the problem of screen burn-in is gradually being solved.

In the future, LCD and OLED screens may be integrated and developed in more fields, such as Mini LED backlight technology and quantum dot technology, which will bring better picture quality and richer color performance.