If you're shopping for a TV today, particularly an LCD model, the panel remains the single most crucial factor influencing its overall quality. The quality of the TV panel directly correlates with the quality of the panel itself. Recently, the industry has been rife with controversy due to disputes over the origins of these panels. For instance, Ms. Jiang filed a lawsuit against Sharp, accusing them of selling a non-Japanese-origin 45-inch smart TV through their official store. In response, Sharp claimed on Weibo that the 45-inch LCD TV was manufactured in a Japanese factory and thus qualified as a "genuine Japanese panel." This situation raises questions—just how vital is an LCD panel?
As we all know, the era of CRT TVs—those big-boxy televisions—is long gone. With the advent of LCD TVs, the panel became the central battleground. From the imaging principles of LCD TVs, we can identify the processor, backlight, and LCD panel as the three primary elements impacting picture quality.
Liquid crystals are unique compounds that exist between solids and liquids, typically remaining in a liquid state under normal conditions but exhibiting solid-like crystalline alignment. When an electric field is applied, liquid crystal molecules can twist, and under polarizers, they block light passage. With enough liquid crystal molecules, images can be displayed pixel by pixel. Using color filters, primarily RGB primaries, and controlling the voltage applied to adjust the twisting of these molecules allows for color displays.
The LCD panel houses a vast array of liquid crystal molecules arranged systematically between two glass sheets, coupled with a driving circuit for liquid crystal rotation. Depending on the arrangement of the liquid crystal molecules, panels can be categorized into types like TN, VA, and IPS, each with distinct characteristics. Currently, IPS is the most prevalent type for TVs, monitors, and smartphones.
It's evident that the LCD panel is the heart of any TV. It dictates the fluidity, contrast, physical sharpness, size, and viewing angles of the display while also influencing color saturation. Faster liquid crystal molecule twisting translates to quicker panel response times and smoother motion. TN panels are known for their high response speeds. Higher pixel counts correspond to better resolution and clarity. The arrangement of liquid crystal molecules defines viewing angles and contrast; TN performs poorest, whereas IPS and VA offer similar performance. Higher twisting precision, indicated by bit depth (8-bit or 10-bit), enhances color richness, with IPS and VA excelling in this regard. Hence, the panel is pivotal in determining the quality of LCD TVs, with most modern TVs utilizing IPS and VA panels.
At present, the dispute regarding the 45-inch TV remains unresolved. Sharp continues to emphasize transparency regarding their product origins, welcoming consumer oversight. As a century-old enterprise, Sharp prioritizes consumer interests and remains committed to serving Chinese customers.
For those interested in smart TVs and streaming devices, resources such as the Smart TV/Box Information Network Sofa Butler (http://) offer comprehensive insights into China’s smart TV and set-top box ecosystems, including news, reviews, and software updates.
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