China-based BOE is a leading manufacturer in the innovation and development of TFT LCD technology. The global share of BOE in the field of liquid crystal panels took first place in 2018. BOE’s primary focus is on improving color performance on ADS displays while increasing brightness and viewing angles.
Its proprietary imaging technology is called ADSDS, or simply ADS. When Samsung announced that it was phasing out LCD panel production in 2020, BOE ADS matrices became a reality in Samsung TVs. In this article, we will find out what an ADS panel is and answer the question: “Which type of ADS or IPS matrix is better”?
ADS and IPS differences
IPS panels are designed to provide richer colors and greater depth than traditional TN panels. They use a configuration of liquid crystals located in a plane perpendicular to the luminous flux of the illumination (In Plane Switching). Overall image quality is improved with higher contrast, better color accuracy and increased brightness.
But the main thing is that compared to VA matrices, where liquid crystals are located along the backlight luminous flux, IPS panels have significantly improved viewing angles. This is a huge boon for lovers of joint entertainment at the TV screen. The IPS technology was further developed in PLS matrices .
This is the property of Samsung. PLS (Plane to Line Switching) offers even wider viewing angles as well as superior image quality and brightness through a denser arrangement of subpixels. It is also known that PLS matrices are more affordable. A significant disadvantage of IPS and PLS matrices is poor contrast relative to VA.
ADS matrix is …
Continuing to develop and improve the ideology of IPS, many companies are striving to eliminate the main disadvantages of such panels – low contrast and price. BOE is clearly the most successful company with its ADvanced Super Dimension Switch technology. The ADS sensor type features ultra-wide viewing angles, excellent color reproduction and ultra-fast motion image processing.
Initially, the ADS TV matrix was intended to be used mainly in commercial projects. These are seamless video walls, digital signage, interactive whiteboards, transparent boards, and other specialized displays. Such a variety of areas of application is due not least to the high strength of the panels with the IPS-ADS matrix type. ADS screens are very pressure-resistant, which is not so important for TVs, but very important for interactive displays.
As a continuation of the development of IPS technology, the ADS matrix uses a highly transparent and highly conductive Indium Tin Oxide (ITO) material to form a control transistor layer. In specific figures, this gives an additional increase in brightness of the order of 15%. In addition, the rotation of liquid crystals in the subpixel is controlled by two electric fields – longitudinal and transverse.
This significantly increases the rate of change of the pixel state from gray to gray (GTG). Those. the response time of the ADS panel is significantly improved. The main disadvantage of ADS matrices is the relative high cost of the ITO layer due to the high price of indium. But the manufacturer is working on the use of highly transparent analog materials. These are aluminum-zinc oxide, graphene, and many other compounds.
ADS vs IPS Matrix
ADS matrix or IPS which is better
How does ADS differ from IPS? IPS panels have become the industry standard for a long time, as the color reproduction and viewing angles of these matrices have not yet been surpassed. But the ADS matrix, in comparison with IPS, has increased brightness due to the use of a more light-transmitting layer as the basis for placing the control elements.
This alone gives her a huge plus. Placing the control layer above the LCD layer provides the ADS matrix with additional rigidity, expanding the possible areas of its use. The reduced response time opens up good prospects for use as TV screens and gaming monitors.
It remains to get around the main drawback – the relative high cost of ADS. But since Samsung has already started using ADS panels in its TVs (Q80A 2021), it means that things are moving in the right direction.