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Views: 297 Author: Kaylee Publish Time: 2023-11-13 Origin: Site
Because of its distinct imaging principle, the color, brightness, and contrast of the CRT display were able to maintain acceptable visual quality from every viewing angle around the screen as early as possible. Unfortunately, many applicants' options for display design and application have been restricted by its large structure. As technology advances, flat panel displays become the industry standard for displays.
One of the primary technologies for flat-panel displays is LCD. The public found it difficult to accept when it was first introduced because of its expensive price, therefore the LCD panel manufacturers introduced TN LCD, an economical variant.
The arrangement of liquid crystal molecules is altered and the TN LCD structure is modified in order to save costs. Its short effective viewing angle and poor color display quality are inherent flaws. We will see blatant image distortion when we look at the screen from an angle that is larger than the effective viewing angle.
Hitachi was the first company to bring IPS technology to LCDs in 1995, and in 1996, they began commercial production. Since then, the technology has continued to advance with the development of Super-IPS, Advanced-SuperIPS, IPS-Pro, and other innovations.
Put another way, IPS technology is TN technology that has been improved.
We will next go over the distinctions between TN and IPS LCDs.
1. Twisted Nematic Panel Stands for Panels:The liquid crystal molecules rotate in a helical pattern in a horizontal direction when a TN display is on, and in a vertical direction when it is off.
2. IPS Panel: This stands for In-Plane Switching Panel. The liquid crystal molecules in an IPS panel rotate in the same direction as those in TN panels when the panel is turned on. They still revolve horizontally while the display is off, but the initial spiral pattern gives way to layers.When the display is turned on or off, IPS technology maintains the liquid crystals' parallel alignment with the screen by switching the direction of the electric field from vertical to horizontal. Additionally, the viewing angle has been greatly expanded due to the structural enhancement.
Light can emanate from the vertical portion of the TN panel because its liquid crystal molecules are oriented vertically. Better visual quality is thus only possible from a relatively narrow angle, because tilting angles clearly exhibit color distortion.
A wide effective viewing angle is made possible by the horizontal placement of the LC in IPS panels, which benefits light emission at all angles. Our term "all viewing angle" display refers to the IPS LCD's ability to span 170 to about 180 degrees in both vertical and horizontal directions.
Color transition can be achieved in grayscale.A 16.77 million color display on an IPS LCD (8bit) is possible, compared to 2.62 million on a TN LCD (6bit).A more natural and seamless transition from black to white is achieved by IPS, which can display a greater number of colors throughout the transition.
In comparison to TN panels, IPS panels respond more slowly because of their high contrast ratio and wide color range. Ghosts and jitters are especially prone to arise when IPS dynamic HD pictures are being displayed. But in the last few years, the phenomenon has substantially improved.
Thus, industries that need HD in their operations, including consumer products, healthcare, design, cultural media, etc., typically go with IPS.
A color restoration's ability is mostly determined by grayscale and color.
IPS panels are able to restore color images in a fine and vibrant manner and have more gray levels than TN panels. They also perform better in terms of imaging. The TN panel's image display appears black in all four corners and lacks detail, as seen in figure 4. on the other hand, the IPS can display several color layers.
At external pressure, the IPS restores at a rate approximately ten times faster than that of TN, whose molecules are arranged vertically, because of the horizontal arrangement of liquid crystal molecules.
A translucent resin covering with a high degree of toughness also protects the IPS LCD's surface, preventing water ripples from appearing and allowing the screen to remain completely flat even when touched. The distribution of pixels on the screen is similar to fish scales when viewed via a magnifying glass.
On the other hand, there are ripples in the water when you press down on the TN panel with your finger, but the surface returns soon as you release the pressure. The CTP cover is often made of hard plastic or glass, which allows the pressure to be released upon contact if it is attached to a capacitive touchscreen.
The TN's electrodes are dispersed on the upper and lower sides, but the IPS's electrodes are all on one plane. Put differently, the aperture ratio of IPS is lower than that of TN.
More light is blocked by IPS than by TN in addition to its horizontal arrangement.
IPS displays require a stronger backlight, requiring more power, to attain the same brightness as TN displays due to its low aperture ratio and low light transmittance.
The manufacturing of IPS LCD, in contrast, requires a greater number of MASK procedures and is comparatively more expensive.
In light of the aforementioned analysis and our knowledge, we will advise:
These terminals, which are used in industrial equipment and portable devices, operate in harsher, more temperate situations and require only an average color display quality while using less energy.
Display terminals, like consumer electronics, that aim for high color display quality.
