The quality of the picture does not depend only on the screen. Xiaomi TV 4 has achieved a good sales record since its launch. The series of products has also become one of the most popular Internet TVs. Xiaomi’s products have always been very cost-effective. TV products are no exception. In addition to its high hardware configuration, Xiaomi TV 4 also indicated on its screen that the original imported screens were used, namely the original LG Display and the original Samsung screen. This touched the hearts of consumers.
Sony TV has always been a spokesperson for picture quality, and its persistence and pursuit of picture quality are well known. Although Sony itself produces screens, most of them will be used in prototypes, military and commercial applications, and will never be used in mass-produced TV sets. Sony LCD TVs use LCD screens produced by Chinese panel makers such as Chi Mei, AUO, and China Star Optoelectronics. They do not use LCD screens imported from their own screens or from many TV manufacturers.
Millet and Sony TV can be counted as the representative brands in the current mid-to-high-end market, each with unique brand advantages, and both have accumulated a large number of user groups. However, in terms of core image quality alone, using domestically-made screens, Sony is undoubtedly more advantageous than using millet-based screens. I believe we have not questioned this. So why did this happen? The key lies in the TV image processing chip. Whether you use a domestic or imported screen, you want a true color, exquisite and clear high-quality performance. A good image processing chip is essential.
The screen is indeed an important factor affecting the picture quality of TV. Everyone is very clear about this, but the quality of the picture is not the only important factor. The TV image processing chip also affects the picture quality performance.
·What is the power of the TV picture quality chip?
Compared to many manufacturers promoting LCD panels, TV picture quality chips are somewhat obscure, because not all TV manufacturers have the ability to develop TV picture quality chips, so it will focus on the screen itself. However, in terms of the quality of TV core graphics, the role of TV-quality chips is not inferior to television screens, and even more important than the role of the panel.
The TV picture quality chip can be understood as a component of the video card in the host computer. It can process and repair the image signals and images in the signal. In the clarity, noise reduction, color enhancement, contrast enhancement, motion compensation and other aspects play a crucial role. At the same time, the video signal entered by the TV interface must be processed by the image engine, converted into a signal suitable for its own TV broadcast, and optimized accordingly, which can effectively improve the picture quality performance.
Don't Confuse ARM and Chips on TV Before we talked about not all TV manufacturers have the R&D capabilities of TV-quality chips, some manufacturers started to steal concepts and use ARM chips to replace TV-quality chips. Propaganda, while the main role of ARM's chips is to serve Android systems and video decoding.
The role played by TV chips for picture quality is somewhat greater than the screen itself. Of course, the author does not deny that good screens can indeed add value to picture quality. High-quality panels are more excellent in terms of backlight control and light transmittance. If the backlight components in the LCD panel are not good enough, even the top quality chips will still see significant light leakage, and excellent image quality performance will be impossible. Talking about it, the TV screen and the image processing chip are more complementary to each other.
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Overview of THE LVDS interface
LVDS, Low Voltage Differential Signaling, is a Low Differential signal technical interface. A digital video signal transmission method is developed to overcome the disadvantages of high power consumption and EMI electromagnetic interference when transmitting wideband high bit rate data in TTL level mode. The LVDS output interface USES a very low voltage swing (about 350mV) to transmit data through differential on two PCB routing lines or a pair of balanced cables, i.e. low-voltage differential signal transmission. LVDS output interface enables signals to be transmitted at a rate of several hundred Mbit/s on differential PCB lines or balanced cables. Low voltage and low current driving modes enable low noise and low power consumption.
Composition of THE LVDS interface circuit
In LCD, THE LVDS interface circuit consists of two parts: the LVDS output interface circuit on the motherboard side (LVDS transmitter) and the LVDS input interface circuit on the LCD panel side (LVDS receiver). The LVDS transmitter converts TTL signals into LVDS signals, and then sends the signals to THE LVDS decoder IC of LVDS receiver on the LCD panel side through a flexible cable (cable) between the driver panel and the LCD panel. The LVDS receiver then converts the serial signals into parallel SIGNALS of TTL level and sends them to the LCD panel timing control and the line and line drive circuit.
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