Customer care and warranty, Pixels and Sub pixels

7. Customer care and warranty

7 Customer care and warranty

7.1Philips' Flat Panel Monitors Pixel Defect Policy

Philips strives to deliver the highest quality products.We use some of the industry's most advanced manufacturing processes and practice stringent quality control. However, pixel or sub pixel defects on the TFT monitor panels used in flat panel monitors are sometimes unavoidable. No manufacturer can guarantee that all panels will be free from pixel defects, but Philips guarantees that any monitor with an unacceptable number of defects will be repaired or replaced under warranty.This notice explains the different types of pixel defects and defines acceptable defect levels for each type. In order to qualify for repair or replacement under warranty, the number of pixel defects on a TFT monitor panel must exceed these acceptable levels. For example, no more than 0.0004% of the sub pixels on a monitor may be defective. Furthermore, Philips sets even higher quality standards for certain types or combinations of pixel defects that are more noticeable than others.This policy is valid worldwide.

Pixels and Sub pixels

A pixel, or picture element, is composed of three sub pixels in the primary colors of red, green and blue. Many pixels together form an image.When all sub pixels of a pixel are lit, the three colored sub pixels together appear as a single white pixel. When all are dark, the three colored sub pixels together appear as a single black pixel. Other combinations of lit and dark sub pixels appear as single pixels of other colors.

Types of Pixel Defects

Pixel and sub pixel defects appear on the screen in different ways.There are two categories of pixel defects and several types of sub pixel defects within each category.

Bright Dot Defects

Bright dot defects appear as pixels or sub pixels that are always lit or 'on'.That is, a bright dot is a sub-pixel that stands out on the screen when the monitor displays a dark pattern.There are the types of bright dot defects:

One lit red, green or blue sub pixel

Two adjacent lit sub pixels:

-Red + Blue = Purple

-Red + Green = Yellow

-Green + Blue = Cyan (Light Blue)

Three adjacent lit sub pixels (one white pixel)

19S4LM, 19S4, 19S4LSB, 19S4LA, 19S4LC specifications

The Philips 19S4 series, which includes models 19S4LC, 19S4LA, 19S4LSB, 19S4, and 19S4LM, is designed to meet the needs of both professional and personal users. Each variant in this series upholds Philips' commitment to quality, functionality, and user-oriented features.

One of the main characteristics of the Philips 19S4 series is its 19-inch screen size, making it a compact yet efficient choice for various environments such as offices, homes, and educational institutions. The monitors boast a maximum resolution of 1280 x 1024 pixels, ensuring clear and sharp visuals for everyday tasks, including word processing, web browsing, and video playback.

The series leverages advanced display technologies to enhance the viewing experience. The IPS (In-Plane Switching) panel technology is used in many models, providing wider viewing angles, accurate color reproduction, and consistent brightness. This makes it easier to share the screen with others without color distortion, a crucial feature for collaborative work or presentations.

Additionally, the monitors in the 19S4 series are equipped with various connectivity options, including VGA and DVI-D inputs, allowing them to connect seamlessly with different systems. Some models also include DisplayPort, enhancing versatility for both modern and legacy devices.

User comfort is also a pivotal aspect of the Philips 19S4 series. Many models come with SmartErgoBase, allowing height adjustment, tilt, swivel, and pivot functions that promote ergonomic viewing positions. This is vital in reducing strain during prolonged use, thus enhancing productivity and well-being.

Energy efficiency is another standout feature. The Philips 19S4 series monitors are ENERGY STAR certified, which underscores their commitment to sustainability while reducing operating costs. The use of LED backlighting not only contributes to lower power consumption but also provides a longer lifespan.

In summary, the Philips 19S4 series, including models 19S4LC, 19S4LA, 19S4LSB, 19S4, and 19S4LM, offers a comprehensive package of features combining performance, connectivity, and ergonomic design. Ideal for both professional and home use, these monitors represent a solid investment for users seeking quality and reliability.