Plasma (PDP) TVs, compared to traditional CRT models, stand out for their "large and slim" design. Beyond that, they offer several other notable advantages:
1. **Slim and Lightweight Design**
The PDP display module is inherently thin and lightweight, allowing for a more compact overall structure. Unlike CRTs, increasing the screen size doesn’t necessarily mean increasing the thickness of the TV.
2. **Wide Viewing Angle**
Plasma TVs provide a wide viewing angle, up to 160 degrees both vertically and horizontally, similar to CRTs. In contrast, LCDs typically have a narrower horizontal viewing angle (around 120 degrees) and even worse in the vertical direction.
3. **Resistance to Electromagnetic Interference**
Due to their different operating principles, plasma TVs are less affected by external electromagnetic interference from devices like motors or speakers. CRTs, on the other hand, are more susceptible to such disturbances.
4. **No Image Distortion**
The RGB grid in plasma displays is evenly distributed across the screen, avoiding the pincushion distortion common in flat CRTs. Additionally, uneven brightness in a picture doesn’t cause distortion in plasma TVs, unlike CRTs.
5. **Convergence and Focus**
Plasma TVs are advanced electronic devices, which can be confusing for some users. However, they generally last about twice as long as regular TVs—up to 20 years if an ordinary TV lasts 10. They also offer superior image quality, color accuracy, and aesthetics, making them a promising future technology.
When using a plasma TV, it’s similar to using a regular TV. No special care is usually needed unless specified in the manual. The screen has a special coating, so avoid using water or chemicals when cleaning. Instead, use a soft, dry cloth to prevent damage.
**Disadvantages**
One downside of plasma TVs is that the R, G, B phosphors emit light themselves, and images are displayed in a fixed pixel addressing mode. This can lead to residual images or “burn-in†when showing high-brightness, high-contrast still images for extended periods. To avoid this, it's advisable to reduce brightness and contrast slightly when possible.
**Plasma vs. LCD**
Plasma and LCD (including LED) are two major TV technologies with distinct characteristics. Plasma TVs offer no flicker, thin design, lightweight, vivid colors, and sharp images. They are also easier to scale up in size. However, they tend to be slightly heavier than LED models.
LCD TVs also offer smooth images, slim profiles, and lightweight designs. They are widely used in PCs, but large-screen LCDs still lag behind plasma in performance. LED TVs are more expensive and may suffer from perspective issues at larger sizes.
**Price and Size Ratio**
Both plasma and LCD TVs are not cheap. Plasma TVs generally offer better value per square inch. For example, in 2010, LCD TVs ranged from 22 to 65 inches, costing between $2,000 and $20,000. Plasma TVs were mainly available in larger sizes, from 40 to 58+ inches, with some models reaching 103 inches (like Panasonic’s 580,000-yen model), priced between $4,000 and $70,000.
**Performance**
For home theater experiences, plasma TVs often outperform LCDs due to better black levels and detail reproduction. This makes video content appear more immersive and realistic.
**Lifespan and Power Consumption**
Thanks to recent technological advances, the lifespan and power consumption of LCD/LED and plasma TVs are now quite comparable.
**Burn-In and Altitude Issues**
Modern plasma TVs have significantly reduced the risk of burn-in. Most brands, including Panasonic, no longer experience this issue. LCDs don’t face this problem either. However, plasma TVs may have issues at high altitudes due to air pressure differences, though reputable brands have addressed this.
**High Definition Support**
Most plasma and LCD TVs support high-definition signals. To fully enjoy HD content, the resolution should be at least 1280×720. Around 80% of plasma TVs support 1080p (Full HD), while most LCDs over 22 inches also achieve Full HD.
**Computer and Gaming Use**
Both plasma and LCD TVs can be used as computer monitors, with many offering DVI ports for better image quality. Both are compatible with gaming consoles, and the performance gap between the two has narrowed significantly due to recent advancements.
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