From the rudimentary cathode ray tube prototype in the laboratories of the late 19th century to the detailed 8K OLED screens and foldable flexible display panels of today, the display has undergone a century of iterations, completing the journey from "able to display" to "excellent display" and then to "intelligent display". This technological revolution within a small space not only embodies the wisdom of physicists and materials scientists, but also continuously reshapes the visual experience of human interaction with the digital world, becoming the most direct witness to technological progress.
Enlightenment and Governance: The Foundation of Light and Shadow in the CRT Era
The opening chapter of the century of displays began in 1897 when German physicist Karl Braun invented the cathode ray tube (CRT). Inside this glass bulb filled with vacuum, the high-speed electron beam emitted by the electron gun strikes the fluorescent powder to produce light dots, laying the first seed for subsequent display technologies. In 1922, Apple applied CRT technology to the Apple I, marking the official birth of the first truly computer display.
In the mid-20th century, CRT monitors entered their golden period. In 1954, RCA introduced the color CRT, achieving color imaging through red, green, and blue fluorescent powders, breaking the limitations of black-and-white display; in 1968, Sony Trinitron cathode ray tubes replaced the traditional shadow mask with vertical stripes, increasing the screen brightness by 30%; in the 1990s, flat-angle CRTs were introduced, gradually solving the problems of edge distortion and severe reflection on spherical screens, and the widespread use of flat CRTs completely eliminated image distortion, becoming the mainstream choice for professional design and office scenarios at that time.
Although CRT monitors dominated the market for half a century due to their excellent color reproduction capabilities, their bulky "big bottom" design, high power consumption of 300 watts per hour, and screen flickering issues became limitations of the era. However, it was during this technological exploration phase that the core logic of "pixel imaging" was established, enabling humans to achieve the visual presentation of digital information for the first time and completing the transformation from the absence of visual experience to its emergence.
Innovation and Replacement: The Thin Revolution in the LCD Era
In the 1970s, the rise of liquid crystal display (LCD) technology initiated the "slimming revolution" of displays. In 1968, the American Radio Corporation developed the first LCD screen. In 1972, Japan's Sharp Corporation purchased this technology and promoted its commercialization. LCD, with its soft images, ultra-thin body and low energy consumption, gradually challenged the dominance of CRT.
The real breakthrough came from the maturity of the thin-film transistor (TFT) technology. In the 1980s, TFT-LCD technology emerged. By setting independent transistors for each pixel, it effectively overcame crosstalk during non-selective operation, reducing the response time from 300 milliseconds to 25 milliseconds and significantly improving image quality. In 2001, the IPS panel developed by Hitachi expanded the viewing angle to 178 degrees by arranging the liquid crystal molecules horizontally, solving the problem of color shift in LCD viewing angles and becoming the preferred choice in professional imaging fields; while the VA panel led by Sharp established the foundation for curved display with its high contrast advantage.
In 2005, LCD monitors entered a period of rapid growth, gradually replacing CRT as the mainstream in the market. From the early 15-inch screens with a 4:3 aspect ratio to the widespread 16:9 widescreen with a resolution of 1920×1080, LCD not only made the desktop space more tidy, but also enhanced the clarity of the picture through the improvement of resolution. In 2007, LED backlight technology replaced the traditional CCFL backlight, further improving the color gamut coverage and contrast, making the color presentation closer to the natural color.
Breakthrough and Leadership: The Leap of Light and Shadow in the OLED Era
In 1987, a serendipitous discovery made by Chinese-American scientist Deng Qingyun at the Kodak laboratory marked the beginning of a new era for organic light-emitting diodes (OLEDs). Unlike LCDs which require a backlight, OLEDs can emit light independently at each pixel, eliminating the need for a backlight module and liquid crystal layer. This characteristic completely revolutionized the rules of display technology.
After decades of technological research and development, OLED has gradually overcome problems such as short lifespan of blue light-emitting bodies and insufficient pixel deposition accuracy. In 2013, the curved screen of Samsung Galaxy Round demonstrated the flexible potential of OLED for the first time; in 2019, the year of the foldable screen phone arrived, and the OLED screen of Huawei MateX could withstand 200,000 folds, with the screen thickness as thin as 0.03 millimeters. Nowadays, OLED has become the symbol of high-end displays. Its advantages of wide color gamut, high contrast ratio, and fast response speed make black purer, colors more vivid, and dynamic images without ghosting. Whether watching movies or playing video games, it can bring an immersive visual experience.
In 2025, OLED technology continues to advance. Samsung launched a 500Hz ultra-high refresh rate 27-inch QHD resolution QD-OLED panel. The display equipped with this panel has reached the top level in terms of picture quality and smoothness. At the same time, the prices of OLED products continue to drop. During the "Double Eleven" period, the prices of many OLED gaming monitors have dropped to the range of 1700 yuan, allowing high-end visual experiences to enter the homes of more ordinary users.
Diversity and the Future: Visual Expansion through New Technologies
While OLED is leading the high-end market, new technologies such as MiniLED and MicroLED are also constantly making breakthroughs, driving the visual experience to upgrade to a higher dimension. In 2019, TCL launched MiniLED TVs, reducing the backlight to 0.2 millimeters and achieving precise area-based light control with thousands of miniature light bulbs, making the dark areas purer and the bright areas more transparent. Nowadays, MiniLED has "become accessible to ordinary people", and can be purchased at a price of just a thousand yuan, becoming a choice that combines picture quality and cost-effectiveness.
Your message must be between 20-3,000 characters!
