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China Shenzhen Orientronic Display Electronic Co., Ltd.
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Shenzhen Orientronic Display Electronic Co., Ltd.
As a specialized manufacturer of electronic display products, we produce and process: ✔️ Liquid Crystal Series Products ✔️ LCD Panels & Modules (LCM) ✔️ Backlight Units ✔️ Digital Tubes ✔️ E-Paper Displays Our Capabilities: • Customization services (accepted: drawings, samples, OEM/ODM) • Development of module/end-product solutions • Complete scientific quality management system Engineering Excellence: Our team includes senior experts with 21 years of industry expertise in LCD/LCM technologies. Corporate Philosophy: "People First, Science-Driven" – Guiding our design, production, sales, and service operations. Market Position: Recognized as a growing leader in LCD/LCM manufacturing with competitive scale advantages. Applications: Products deployed across: → Home Appliances | → Medical Devices → Automotive Instrumentation | → Industrial Controls → Educational Electronics | → Financial Terminals → Communication Devices | → Smartphones Global Reach: Serving domestic and international markets. 2017 Capacity Upgrade: Invested in mainland China's most advanced automated production lines and equipment, featuring: ✓ Expanded manufacturing facilities ✓ Comprehensive testing systems ✓ Enhanced product quality, technical capabilities, and output capacity
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AMOLED vs. TFT: Advantages and Disadvantages 2025-08-04   ​ TFT (Thin-Film Transistor) is a foundational technology for LCD screens, where each pixel is controlled by a thin-film transistor to improve display quality. While AMOLED and TFT-LCD both dominate modern display markets, their core principles and performance differ significantly. Here’s a detailed comparison:​ AMOLED: Self-emissive technology. Each pixel emits light independently via organic materials, eliminating the need for a backlight or liquid crystal layer.​ 2. Core Advantages​  
AMOLED Displays: Advantages, Disadvantages, and Technical Analysis 2025-08-04 If you pay attention to smartphones, TVs, or other electronic devices, you've probably heard the term "AMOLED" quite often. But what exactly is it? What are its advantages and disadvantages? And what are the differences between different types of AMOLED? This article will answer all these questions for you. Core Advantages of AMOLED AMOLED (Active Matrix Organic Light-Emitting Diode) is an advanced display technology where each pixel can emit light independently, giving it many unique advantages. Excellent Contrast and Color Performance One of the biggest highlights of AMOLED is its ultra-high contrast ratio. Because its pixels can be completely turned off, when displaying black, the relevant pixels emit no light at all, making the black color more pure and deep, with a theoretically infinite contrast ratio. In contrast, traditional LCD screens have a backlight layer, so the black parts are actually the result of the backlight being blocked, which always allows some light to pass through, resulting in a contrast ratio usually around 1000:1. In terms of color, AMOLED supports a wider color gamut, easily covering standards such as DCI-P3 and BT.2020. This means it can display richer, more saturated colors, whether it's the highlight metallic reflections in HDR content or the gorgeous gradients of a sunset, all can be presented realistically. Thin, Lightweight, and Flexible Potential AMOLED screens don't require a backlight layer and liquid crystal layer like LCDs, so they can be made very thin, usually only 1/3 to 1/2 the thickness of LCDs. For example, smartphone screens using AMOLED can be less than 0.5mm thick, which is very important for devices pursuing thinness and lightness. What's more exciting is that AMOLED can use flexible materials as substrates, such as polyimide (PI), allowing the screen to be bent, folded, or even rolled up. The curved-screen phones and foldable phones we see now (such as the Samsung Galaxy Z Fold series) are manifestations of AMOLED's flexible potential, and more novel product forms will emerge in the future. Fast Response and Low Latency When playing games or watching high-speed moving videos, the response speed of the screen is crucial. The light-emitting and extinguishing response time of AMOLED pixels is only 0.1 to 1ms, while LCDs usually require 5 to 10ms. This means that AMOLED has very little motion blur when displaying dynamic images, providing a smoother visual experience, especially suitable for high-refresh-rate scenarios like 120Hz. More Energy-Efficient in Specific Scenarios The advantage of AMOLED becomes apparent when using dark mode. Because black pixels are completely turned off, unlike LCDs where the backlight still emits light, it can save 30% to 50% of power. For example, when using a phone at night or reading e-books, AMOLED is more energy-efficient. Shortcomings of AMOLED Although AMOLED has many advantages, it is not perfect. Limited by the physical properties of organic light-emitting materials and process levels, it has some drawbacks. Limited Lifespan and Risk of "Burn-In" The organic materials used in AMOLED, especially blue light materials, are prone to aging. Generally speaking, its lifespan is about 30,000 to 50,000 hours, while LCD screens can reach more than 100,000 hours. What's more troublesome is the problem of "burn-in". If static images are displayed for a long time, such as the phone's navigation bar or app logos, it will cause uneven aging rates of pixels in the corresponding areas, resulting in permanent afterimages. Manufacturers now use methods such as pixel shifting and automatic brightness adjustment to alleviate this, but it cannot be completely avoided. Brightness and Visibility in Strong Light Need Improvement Early AMOLED screens had relatively low peak brightness, usually below 500 nits, which made them prone to glare in strong light, making it difficult to see the screen content clearly. Although some flagship models now have improved peak brightness to 2000 to 3000 nits through technical improvements, such as using high-frequency PWM dimming and enhanced light-emitting layers (such as Samsung's E7 material screen), at high brightness, not only does power consumption increase significantly, but it also accelerates screen aging. High Power Consumption in Full White Screens When displaying a full white screen, AMOLED requires the red, green, and blue sub-pixels to emit light simultaneously, so its power consumption is 20% to 40% higher than that of LCDs. LCD screens only have the backlight emitting light, which is more energy-efficient when displaying white, leading to poor battery life performance in some devices using AMOLED, such as early AMOLED tablets. High Cost and High Process Threshold The production process of AMOLED is relatively complex. The yield rate of high-precision backplanes (such as LTPS) and evaporation processes (to align RGB sub-pixels) is relatively low, usually between 60% and 70%, while the yield rate of LCD can reach more than 80%. This makes the cost of AMOLED 30% to 50% higher than that of LCD of the same size, especially for large-sized panels, the cost difference is more obvious. Color Accuracy Issues Early AMOLEDs had aggressive color calibration in pursuit of high saturation, which easily led to color deviation, such as greenish or reddish tones. Although many products now have color accuracy reaching Delta E < 1 through technical adjustments, some low-cost products may still have color accuracy problems. Comparison of Main Technical Directions of AMOLED AMOLED technology is constantly developing, mainly around three core aspects: materials, driving, and form. Different technical directions have different characteristics and are suitable for different scenarios. Light-Emitting Material Routes RGB OLED: Each pixel consists of three independent sub-pixels: red, green, and blue, which emit light directly. This technology has the highest color accuracy with Delta E less than 1, no loss from color filters, and high brightness efficiency. However, its process is complex, requiring three evaporation alignments, and the cost is about 20% higher than WOLED. It is mainly used in flagship phones (such as iPhone 15 Pro) and professional monitors. WOLED + Color Filters: White OLED emits light first, then generates colors through red, green, and blue filters, using a single evaporation process. Its cost is relatively low, 15% to 20% lower than RGB OLED, with a high yield rate, suitable for large-sized screens. But the filters cause 30% to 40% brightness loss, and the color accuracy is slightly worse, with Delta E around 2 to 3. It is commonly used in mid-to-high-end TVs (such as LG C3 series) and tablets. Phosphorescent OLED: Uses phosphorescent materials instead of traditional fluorescent materials, with light-emitting efficiency improved by 2 to 3 times, especially for blue light. This extends the screen lifespan by 50%, reduces power consumption by 40%, and alleviates the risk of burn-in. However, the stability of phosphorescent blue light materials is insufficient, and it has not been commercialized on a large scale yet, mainly in the laboratory stage and some high-end prototypes. Backplane Driving Technology LTPS (Low-Temperature Poly-Silicon): Has high electron mobility, between 100 and 200 cm²/V·s, supporting high resolutions such as 4K and 8K. It has a fast response speed, suitable for small-sized high-refresh-rate screens, such as 120Hz phone screens. But for large-sized panels, the cost is relatively high, and the yield rate drops significantly for panels above 65 inches. It is mainly used in mobile phones and small tablets (such as iPad Pro). IGZO (Indium Gallium Zinc Oxide): Has moderate mobility, between 10 and 30 cm²/V·s, low cost, and is suitable for large-sized screens. The yield rate of large-sized panels is relatively high, for example, the yield rate of 75-inch TVs can reach 80%, and the power consumption is 10% lower than that of LTPS. However, its maximum resolution is relatively low, and it is difficult to exceed 4K@120Hz. It is often used in mid-to-large-sized TVs and monitors. Pixel Arrangement Design Pentile Arrangement: The number of sub-pixels is 2/3 of that in RGB arrangement, such as a combination of 1 red, 2 green, and 1 blue, reducing the proportion of blue sub-pixels. This arrangement has high light transmittance, 15% lower power consumption, and alleviates the problem of blue light aging. But at low resolutions, the graininess is obvious, for example, on 1080P screens, the edges of text will be somewhat blurred. It was commonly used in early AMOLED phones (such as Samsung S5). Diamond Arrangement (Dynamic AMOLED): Sub-pixels are distributed in a diamond shape, increasing the density of green sub-pixels because the human eye is more sensitive to green. Its clarity is close to that of RGB arrangement, while taking into account power consumption, with 30% higher clarity than Pentile arrangement. However, it still requires algorithm compensation, such as Samsung's AI sharpening, and its advantages are more obvious at high resolutions. Many current flagship phones, such as Samsung Galaxy S23 and Xiaomi 13, adopt this arrangement. Flexible Form Technology Rigid AMOLED: Uses a glass substrate and cannot be bent. It has low cost, strong scratch resistance with a Mohs hardness of 7, suitable for straight-screen devices. But it has no form expandability, and its thickness is 50% higher than that of flexible screens. It is mainly used in entry-level mobile phones and fixed monitors. Flexible Screen (Curved): Uses a PI substrate plus ultra-thin glass (UTG) and can be bent with a curvature radius greater than 3mm. It can fit the curved surface of the device body, improving the grip feeling and reducing the bezel. However, the edges are prone to glare, and the maintenance cost is high; the entire screen needs to be replaced if broken. It is commonly used in curved-screen phones (such as Huawei Mate 60 Pro). Foldable Screen: Can be folded repeatedly more than 200,000 times, using a hinge plus PI/UTG composite layer, supporting inner and outer folding. It combines a large screen (such as 7.6 inches) with portability (5.4 inches when folded). But the cost is high, 50% higher than that of straight-screen devices with the same configuration, and the crease is difficult to eliminate completely. Samsung Z Fold5 and Huawei Mate X5 are representative products of foldable screens. Miniaturization Technology (Micro OLED) The pixel size of this technology is less than 10μm, while that of traditional AMOLED is 50 to 100μm, so its resolution can exceed 3000PPI. The power consumption is 60% lower than that of ordinary AMOLED, with no screen-door effect, suitable for near-eye display devices. However, the production yield rate is low, less than 30%, and the cost is extremely high, with a 1-inch panel exceeding 1,000 yuan. It is mainly used in VR/AR devices, such as Apple Vision Pro. Summary With its unique characteristics such as self-illumination and flexibility, AMOLED has become the mainstream choice in the high-end display field. Although it still has some problems in terms of lifespan and cost, these issues are gradually being solved with the continuous progress of technology. Different AMOLED technical directions have their own advantages and disadvantages and play important roles in their respective suitable fields. In the future, with the maturity of technologies such as phosphorescent materials and Micro OLED, the application range of AMOLED will be further expanded. At the same time, its competition with LCD (such as Mini LED backlit LCD) will also promote the continuous upgrading of the entire display technology, bringing us a better visual experience.
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