Differences in technology, differences in manufacturer R&D, and differences in pixels.
1. Technical differences: IPS: (In-PlaneSwitching, plane switching) technology was first invented by Hitachi, which is also known as a hard screen. The reason why it is hard is because the liquid crystal molecules rotate parallel to the glass surface (and the soft screen rotates perpendicular to the glass surface, which is a story later). The TFT process generally has 6 to 7 steps, and the details inside the screens made by different companies are also a bit different. different. MVA: The full name is (MultiVerticalAlignment), which is a multi-quadrant vertical alignment technology. It is a patent registered by Fujitsu and is used by most panel factories in Taiwan. It is intended as a compromise between TN and IPS, and the principle is to add protrusions to form multiple viewing areas.
2. Differences in manufacturer research and development: IPS: (In-PlaneSwitching, plane switching) technology was first invented by Hitachi. MVA (Multi-domain VerticalAlignment) was developed by Fujitsu in 1998.
3. Differences in pixels: IPS is commonly known as a hard screen. It has a higher viewing angle, faster response speed, accurate color reproduction, and moderate price. The disadvantage is that it is prone to light leakage problems and the black purity is not enough. The MVA panel has a slower response speed, the highest viewing angle, high color reproduction, and a relatively expensive price. The disadvantage is that there is color drift, and the display effect is not very good for sharp text (those that are not obvious in daily office work).