#enhanceddynamictonemapping

As known, fierce competition in the consumer electronics segment is the main trend of the last few decades. In fact, the development of innovative technologies has become for companies one of the main tools to ensure the competitiveness of its products. As a result, almost all leaders annually offer models that use a wide range of the most effective innovative solutions. Of course, TVs are one of the most high-tech segments.

LG TVs

Of course, LG needs no introduction. Every year this company offers models with the support of the most advanced technologies, many of which are its own development. Nano Cell, HDR technology, HDMI 2.1 (48 Gbps), etc perfectly illustrate this trend. Of course, 2019 was no exception. For example, at CES 2019, the company demonstrated first rollable OLED TV. 260 flexible OLED screens, connected together to imitate a waterfall struck the imagination of the most imperturbable viewers. All modern models use OLED or LED LCD technology. In fact, QLED (Samsung), Nano Cell (LG) and Micro LED are innovative LED LCD TVs. QLED and Nano Cell technologies have a lot in common, but are developed by different companies. Recall that QD (quantum dots) or fluorescent semiconductor nanocrystals are tiny single crystals with a diameter of 2-10 nm (15-150 atoms). The size and shape of QDs is easily and accurately controlled by the duration and temperature of the process of their synthesis. QD color depends on its size. The size of large red QDs reaches 7 nm (150 atoms), the diameter of green particles is about 3 nm (30 atoms), and the smallest blue QDs have a diameter of only 2 nm (15 atoms). These nanoparticles are applied to an additional nanofilter between the LED panel and the LCD screen. This element significantly improves brightness control, providing more accurate color rendering. The main difference between Nano Cell and QLED is the size of the calibration pixel, which is 1 nm and 2-7 nm, respectively. Modern Nano Cell models are slightly cheaper than QLED models with similar technical specifications.

LG LED 65SM9500 NanoCell

But the company is also actively developing traditional LED LCD TVs. In 2019, LG introduced the new SM9500 (55, 65 ") TV (SM9800PLA in Europe). This ultra slim LED 4K TV with Nano Cell display and FALD backlight supports the HDR standard, including Dolby Vision, HDR10, HDR10 Pro, HLG, HLG Pro and Advanced HDR from Technicolor. In 2019, LG continues to ignore the competitive Samsung HDR10+ standard, claiming that its models provide a similar effect due to the dynamic Tone mapping mode. Dynamic frame-by-frame HDR image processing uses the Enhanced Dynamic Tone Mapping algorithm. The native resolution of RGB matrix is 3840 x 2160 pixels, which corresponds to 4K Ultra HD. In addition, the model supports HDMI 2.1, Dolby Atmos, wireless WiSA audio and uses WebOS 4.5. SM9500 uses an upgraded second-generation Alpha 7 Gen 2 processor and an HDMI 2.1 port with HDMI eARC and VRR support. New HDMI 2.1 interface provides 48 Gbps. For comparison, HDMI 2.0 only supports 18 Gbps. Accordingly, new model can playback content with higher resolution and frequency. In particular, this model supports a 4K / 120 Hz mode. In addition, HDMI 2.1 provides a Variable Refresh Rate feature that is similar to the AMD FreeSync and Nvidia G-Sync technologies. Moreover, the HDMI 2.1 supports Auto Low Latency Mode (ALLM) technology that automatically determines the optimal delay time for the smoothest possible playback. HDMI eARC provides lossless audio transmission through the HDMI eARC port. Of course, the LG SM9500 with HDMI 2.1 is backward compatible with HDMI 2.0. But connecting external HDMI 2.1 devices requires Ultra High Speed HDMI cables.

Key features

Matrix LG SM9500 supports 10-bit color depth. Most modern TVs use 8-bit matrix, which provides 8 bits for each of the three colors (red, green, blue) or 256 shades. 10-bit panels provide 1024 shades per color. Accordingly, 1024 х 1024 x 1024 is 1.07 billion colors per pixel. For comparison, this value for the 8-bit matrix reaches only 16.8 million. This value mainly affects the degree of image realism. The top LG 2019 models continue to use FALD (full-array local dimming) backlight. It uses LEDs behind the screen that are combined into arrays for each screen zone. In this case, the TV can turn off certain areas of the backlight, providing a deeper black, improving the detail in the shadows and reducing the excessive brightness. As a result, FALD significantly improves the contrast, providing great image quality. Processing dynamic scenes uses an improved LG α7 (Alpha 7) second-generation processor that has replaced the previous Alpha 7. According to the company, it has significantly improved the performance of color and motion processing algorithms. The model uses a very popular Magic Remote with a gyroscope, which provides cursor control when it moves in space. In addition, it does not require direct guidance to the IR receiver on the TV. But location and set of its buttons is slightly different from the Magic Remote 2018. As known, LG TVs use Dolby Atmos since 2017. This feature automatically adjusts to any connected speaker system. This TV uses a 2.2 circuit with a total power of 40 W. Wireless Sound Sync provides connection and transfer of audio content to mobile devices.

ThinkQ AI

The tough competition in the consumer electronics segment encourages companies to continuously develop their products. First of all, this aspect refers to the market leaders. As a result, leading companies annually offer new models with enhanced functionality through innovative technologies. Today, this condition has become necessary to maintain a high competitiveness level. LG Signature Roll Up OLED TV at CES 2019 perfectly illustrates this trend. This techology struck the imagination of the most imperturbable viewers.

But, of course, the price no less affects the competitiveness of any device. Unfortunately, some companies reduce their activity in the development of OLED technology due to the high cost of producing OLED (organic light-emitting diode) matrices, which significantly reduces the competitiveness of these TVs. But LG continues to actively develop this direction. As known, this technology uses its own radiation of diode under the influence of electric current, without requiring additional LED backlight. As a result, it provides absolutely black and maximum contrast. In addition, the lack of LED backlight ensures perfect image uniformity with minimal thickness. Modern OLED matrixes use RGB OLED or WRGB OLED technology with 3 or 4 subpixels.

LG uses WRGB OLED (white + red + green + blue subpixels) technology. According to the company's engineers, the fourth white sub-pixel improves brightness, contrast and color reproduction while reducing production costs.

LG OLED C8 vs B8

As known, LG produces panels on its own LG Display enterprises, which ensures cost reduction due to technology optimization. As a result, innovative solutions and optimization of production provided the first significant reduction in price for LG OLED TVs in 2018. Of course, the consumer market reacted adequately to this good news. As a result, interest in these models has remained steadily high since the spring of 2018. The LG OLED TVs 2018 includes the B8, C8, E8, G8 and W8 series. The C8 series offers 55, 65 and 77-inch models. LG OLED C8 with good reason can be classified as a top model at an average price. Traditionally for LG OLED TVs, C8 has a super thin design.

Unlike the α7 in the B8 series, the LG C8 uses a more productive α9 video processors, which is the main difference between these series.

Powerful α9 supports HFR technology, providibg 120 fps, which is important for high-dynamic scenes.

Of course, the performance of the video processor also affects the scaling efficiency of HD up to 4K. Unfortunately, the lack of HDMI 2.1 limits HFR processing from external devices, for example from a Blu-ray player. In fact, the series only supports streaming content. In addition, the C8 provides greater brightness, which slightly improves HDR content playback. Besides, the C8 plays a more balanced color gamut and minimal noise on a dark background. But the B8 wins substantially in price.

Key features

OLED C8 supports all modern standards, including HDR10 from UHD Alliance, Dolby Vision from Dolby Lab, HLG from BBC / NHK and Advanced HDR from Technicolor and uses a full set of image enhancement technologies, including Ultra Luminance Pro, Perfect Color on Perfect Black, etc.

In addition, Enhanced Dynamic Tone Mapping provides dynamic or frame-by-frame HDR processing.

The playback quality is almost independent of the source, for example, a tuner or a Blu-ray player. According to the test results, the contrast and maximum brightness reach 222: 1 and 448 cd / m2, respectively. Of course, these are very high values. Traditionally for OLED, TVs provide rich and natural color reproduction even at large viewing angles. The built-in Triple-Twin tuner supports DVB-T2-standard. Four HDMI inputs provide connection of a gaming console, Blu-ray player and other external signal sources. Three USB ports for connecting flash drives provide recording the playback content. Unfortunately, the audio quality correspond only to the average level. Of course, 20W stereo speakers provide good, but not surround sound, due to the lack of a subwoofer. Therefore, the C8 is inferior in this aspect to direct competitors from Sony and Samsung. On the other hand, the external soundbar easily solves this problem. For a model of this level, this solution is quite acceptable. Wireless Sound Sync feature provides connection and transfer of audio content from mobile devices. The series contains almost all modern formats, including DTS and DivX. TVs has many pre-installed apps for popular streaming services, YouTube and Facebook. The integrated store offers a wide selection of games and programs, although its range is inferior to Android TV.

Other

Traditionally for LG TVs, the series uses a very convenient Magic Remote.

High energy efficiency reduces energy consumption to 112 W in normal mode and to 0.3 W in the Stanby state. In fact, the LG OLED C8 has become one of the most economical UHD models. The LG OLED 2018 uses an improved WebOS 4.0 smart platform with more flexible connectivity features and enhanced compatibility between various AI devices, including IoT, Internet of Things, etc.