Honorable friends, everyone!
This test product for everyone is Philips 4K Quantum Dot LED LCD 55-inch TV, this guy is a big man in the test, the test actually cost me a lot of thought.
Go directly to the topic.
The first part is opened and installed
1, outside packaging
When the family received the goods, they have checked out the box. In particular, I would like to remind you that the LCD is fragile and must be checked out of the box.
By the way, this time the delivery was only delivered to the downstairs, and my mother added 30 yuan to the 5th floor.
2, unpacking and installation
(1) Screen body
positive
Back
The left-most black spot below the back is actually a hidden power switch button.
(2) Product Identification
Power 160W, Guanhua Display Technology (Xiamen) Co., Ltd. foundry.
(3) Back interface and speakers
Debugging, VGA, analog input and other interfaces.
HDMI, SD card, USB, coaxial audio output interface.
(2) Feet and screws
Super simple design.
Four screws with a locking agent sprayed on the threads to prevent slippage.
(3) Other accessories
Double-hole power cord
remote control
Remote control battery (7)
(4) Foot mounting
Mounting hole
Foot ID
Successfully docked
The second part of the power and set
First, power up
Second, drawing and sound settings
Intuitive and innovative drawing settings
Third, Ambilight
It can be switched to the "Bright Ambiance" or "Chorose" mode. The LED effect light on the back will change the color according to the change of the image or sound. It is a small configuration that increases the taste of life. It has nothing to do with the picture quality and sound quality of the TV. .
The circle of white dots behind the TV is the undying LED lights.
This feature can be turned on or off through the settings menu. 
The third part of the remote control
1, rounded shape, weak design sense
2, a variety of remote control Hengping
(1) Design
From left to right are: Century Gray 4K player, Panasonic plasma TV, PHILIPS TV, millet box mini, Sony 4K player.
(2) Horizontal comparison of remote controls
Design style: personal like Matsushita's tough and millet, Sony's exquisite design;
Key layout: personal preference millet, Sony's simple design;
Hold the feel: Philips's corners and covers are designed with the arc of the most excellent feel; century gray thick and thin on the design feel is also very wrong; Panasonic irregular back some impediment; millet and Sony's corner is flat Straight, there are occasional problems with corners, but they are very small;
Material workmanship: The shells are plastic; key materials millet and Sony are hard, feedback is direct, the key feel is clear; Panasonic is a combination of soft and hard, pressing sense is hard; Philips and Century Gray are all rubber material, feel soft.
3, Special Comments on Philips Remote Control
(1) The rear arc design has a good overall grip;
(2) The buttons are all made of rubber material, and the texture is poor, but the buttons have clear pressing feedback;
(3) Each button has different requirements for key stroke and button strength. It is soft and hard.
4, Philips remote control virtual press problem
In actual use, there are often cases where the user has pressed the button and received the button feedback, but it has not actually taken effect. In the test process, the habit of pressing the button strongly is pressed every time. It is recommended that the manufacturer re-do the remote control button. Optimization, to avoid the occurrence of virtual press.
5. Philips Smart Remote APP
The TV supports mobile APP control, as long as the mobile phone and TV are in the same Wifi network.
(1) APP connection
APP icon -> Connect Device -> Enter PIN (TV will display PIN code synchronously) -> The connection is successful.
(2) Remote TV via APP
The full functionality of the original remote control can be realized.
APP Home -> Remote Control Function Page 1 -> Remote Control Function Page 2 -> Remote Control Function Page 3
(3) Easy to Connect Features
Can call other devices to achieve photos, images, music playback features (Special Note: After using EasyShare to call the file on other devices, you need to use the remote control of the device you call for follow-up operations, Philips remote control or APP can not exit the file display Or play).
Connect easily -> Check the Open "Easy server server server" -> Xiaomi box file directory -> Xiaomi box in the picture.
The fourth part 4K and the basic knowledge of SD and SD
First, before the test, first give you access to friends about the basic knowledge of 4K, HD, SD (experienced friends please ignore)
1, display pixels
The smallest display unit on the screen, the smaller the single pixel, the greater the unit density, the higher the sharpness.
2, resolution
(1) 4K Ultra High Definition TV 2160P
Resolution, commonly known as 2160P, 3860 pixels per line in the horizontal direction, 2160 pixels per line in the vertical direction, P stands for progressive scan.
(2) High-definition digital television 1080i
Resolution, referred to as 1080i, 1920 pixels per line in the horizontal direction, each line of 1080 pixels in the vertical direction, China's HD standard is interlaced, so the suffix is ​​i.
In practical applications, a complete 4K picture can be taken in the form of a field character by using four high-definition cameras and a specific support.
(3) Standard definition digital TV 576i
Resolution 720576, 720 pixels per line in the water direction, 576 pixels per line in the vertical direction, China's SDTV standard is interlaced, so the suffix is ​​i.
3, 4K technology to enhance the screen effect
(1) Increased definition
With a significant increase in the number of pixels, the pixel density per unit area increases, providing more picture detail and a clearer viewing experience.
Number of pixels: 4K=38602160=8337600; HD=19201080=2073600; SD=720576=414720.
Pixel density multiple: 4K = 4 times HD = 20.1 times the standard definition, the same size screen 4K TV pixel density is 20.1 times that of SDTV.
(2) Improvement of color space
The improvement of viewing quality in 4K is also reflected in various aspects such as color, grayscale, and brightness.
4K increase in color
Second, to ensure the 4K viewing effect, the relationship between the screen size and viewing distance
Not long ago, when accepting Sony 4K technical training, Sony technicians said that the optimal viewing distance of Sony's 80-inch 4K TV is 1.5 meters.
If you look at the distance too far or the screen size is too small, it will cause the human eye to be unable to distinguish the details on the screen. The 4K resolution will lose its meaning and the money spent on 4K TV will be lost.
When families purchase TVs, they can refer to the following table. Of course, the best viewing distance is just to say that the clarity and the viewing effect are the best. In fact, it does not matter if you sit farther. If you want to take a closer look, it will be OK.
In general, buying a TV is a big buy, a small, personal recommendation 55-inch viewing distance is about 3 meters is a good choice.
TV size and viewing distance reference table
Third, the problem of restricting 4K development
The most important issue that restricts the popularity of 4K is how to allow users to conveniently watch 4K programs.
Analysis of the causes of the problem:
(1) The file is too large
Taking an uncompressed movie-grade 4096P (40963072) as an example, a 40-minute program is about 4.5TB. Currently, it can only be stored using a hard disk file. The bandwidth requirement for post-production is even astonishing 1.6GB/sec (equivalent to A 12.8Gb fixed speed line).
(2) Inconvenient interaction
There is no convenient, inexpensive exchange medium like a Blu-ray disc.
(3) The lack of terrestrial transmission standards
Currently, with 4K and 6K cameras such as SONY PMW-F55 and RED Epic Dragon are widely used, 4K pre shooting is no longer a problem, and even 4K live broadcasting is close to commercial applications, but currently 4K only has satellite transmission standards and there is no terrestrial TV The transmission standards, relevant standards need to be improved.
(4) 4K source scarcity
All kinds of reasons are intertwined, leading to a serious shortage of film sources in the 4K program market, very few high-quality 4K sources, and can only find sporadic 4K TV manufacturers showcasing films, a small amount of foreign documentaries, and test samples taken by a small number of enthusiasts. .
(5) The price of 4K TV is too high
At present, 4K TVs are in the new phase of the market, positioning more high-end, the price is much higher than high-definition television, but because there is no support for 4K programs and 4K channels, although the selling point is clear, but still can not become the mainstream of the market.
Fourth, summary
1,4K popularity is unstoppable
It takes a long time for 4K to be popular so that the market can absorb the high costs of the 4K product during the development phase and initial commercialization stage just as before the popularity of high-definition television.
2. Technological progress provides strong support for 4K popularization
With the development and application of related technologies such as compression technology (H.265), hard disk capacity technology (8TB single disk capacity), and network access technology (fiber-to-the-home), it will provide powerful technical support for 4K penetration.
3. NHK TV Station 4K and 8K Development Plan
Take the example of 4K Japan’s fastest-growing Japanese NHK TV station (equivalent to China’s CCTV), according to NHK’s plan: to implement commercial application of 4K live broadcast in Rio 2016 Olympic Games and carry out 8K live broadcasting test; in 2018 The actual commercial application of the 8K live broadcast at the World Cup in Russia; home entertainment services for 4K and 8K TVs will be provided by the 2020 Tokyo Olympics.
Note:
(1) The NHK TV station believes that 4K is not as clear as the high-definition video quality. 4K is only a transitional product. NHK's R&D and testing of 8K TV technology have been carried out very early.
(2) The NHK television station and the Japanese national television station also assumed the important task of promoting the development of Japanese television technology, as a research and development and experimental base for new technologies, and working closely with Japanese companies such as Sony, Panasonic, Fuji, and Canon to ensure that their technologies are Industry leadership.
Part V Introduction to Test Equipment and Wires
1, 4K dedicated HDMI cable
Kaibol 2160P HDMI cable 5 meters, product link: http://item.jd.com/1541458601.html.
2, Dafa home FMP-X10 4K player +100 yuan viewing card
Product Link: http://.
The price of the 4K movie in the FMP-X10 is RMB 25 per unit. After purchase, it can be watched online or downloaded through the Internet. The movie can be viewed 72 hours and expire after 72 hours.
3, Century Gray 5i-1500 4K Blu-ray/HDD Player
Panasonic 50S10C Plasma TV
Purchased around 2010, when the purchase price seems to be around 8000-9000 yuan, with a resolution of 1920,1080.
5, Gehua HD set-top box
Skyworth produced, Gehua cable free distribution.
Part Six Test Start
First, abortive SONY FMP-X10
Unfortunately, the original test equipment was forced to die due to the fact that the Philips TV HDMI interface did not support the HDCP2.2 protocol.
1. Prompt HDCP interface is not compatible
Connect the FMP-X10 to the HDMI port on the TV. The TV screen shows "The HDMI port of the TV is not compatible with the 4K media player. Please connect to the HDCP 2.2-compatible terminal. For more help, please contact the TV maker. contact."
2, contact PHILIPS customer service, ultimately unable to solve
Contact customer service, on-duty customer service is also not very clear the cause of the problem, after recording, the next day, a dedicated technical staff called to inform the relevant information based on the view of the model TV support HDCP interface, but can not find the supported version, It is recommended to connect the 4K player to the HDMI2 interface. The HDMI2 interface will support MHL (Mobile High-Definition Link mobile terminal high-definition video standard interface, which connects the audio and video standard interface of portable consumer electronics devices). If it is still not available, the HDCP interface of the model TV is still available. Not reach the 2.2 version.
Unfortunately, the connection between HDMI1 and HDMI2 is the same prompt. In this test, the FMP-X10 was not successful and died first.
3, problem analysis
All copyrighted programs of Sony FMP-X10 are transmitted or downloaded via the Internet. HDCP 2.2 has a copyright protection function to ensure that programs are not transcribed. By querying relevant data, there are very few devices that can currently support HDCP2.2. As of the press release, only the test has been tested. Sony's own VPL-VW500ES 4K projector successfully implemented playback.
Second, fake 4K playback function, century Gray 5i-1500
1, high expectations, greater disappointment
According to the manufacturer's publicity, Century Gray 5i-1500 Blu-ray is "a full-featured representative, set of HIFI, 3D, 4K and other practical functions in one video playback masterpiece."
2, can not play 4K files, in fact, only with high-frequency rising 4K imitation function
Originally for the Century Gray 5I-1500 4K player has a high expectation, all 4K files can not be played, after the click to play Huaping.
Contact the manufacturer, and consult the relevant information, the original century Gray 5i-1500 only has the function of the frequency increase, that is, through the hardware algorithm to calculate the excessive pixels between the pixels of the high-definition picture, and display, in order to make up for the shortcomings of insufficient pixel density of high-definition programs. , to improve the quality of high-definition programs to simulate and approach the 4K screen display.
In light of the above, Century Gray 5I-1500 can only be used as the playback device for high-definition programs in this test.
3, the summary of the 4K player problem
The incompatibility between the player and the TV interface specification, and the fact that the player with the nominal 4K function cannot actually play 4K files, all reflect that the 4K equipment and standards are not mature in the current 4K market, and these problems take time to gradually solve.
Third, 4K program play test
Special note: Due to the principle of screen imaging, the screen photographs taken with the camera will not be able to truly restore the viewing effect of the naked eye, especially the close-up photos, the photo quality, clarity and brightness are for reference only, the actual viewing effect of the naked eye Please see the summary of the text in the following chapter.
1, manufacturers store samples
(1) Program Name: Changhong 4K Demonstration Film "Meili Tianfu";
(2) File name: [Laser Changhong. 4K. Demonstration film] Miho Tenfu.MP4, 3.46GB, duration 4 minutes 58 seconds
(3) Code information: video resolution, VBR variable rate 99Mbps, frame rate 29.97fps, format MPEG-4, encoder H.264, audio AAC encoding
(4) Player: Philips TV built-in USB playback
(5) Playback effect: excellent
The play is smooth, the picture is clear, and the colors are gorgeous, perfectly displaying the 4K picture effect of PHILIPS QD TV. The family members are shocked by the stunning picture effect.
(6) Some other 4K sample playback effects
2, 4K documentary
(1) Program Name: The landscape of time;
(2) File name: TimeScapes.2012.CineForm.4K.x264.DTS-HD.MA.5.1-HDWinG.mkv, 23.8G, 48 minutes and 21 seconds in total length;
(3) Code information: video resolution, VBR variable code rate 70.4Mbps, frame rate 23.97fps, format MKV, encoder H.264, audio DTS 5.1 encoding;
(4) Player: Philips TV built-in USB playback function;
(5) Play Effect: Aesthetic
It was as good as the sample of the store tested earlier, but it was not as bright as the sample. The visual effect was much better than the photo.
(6) Playback effects of some other documentaries
3, Blu-ray ripping 4K files
(1) Program Name: X-Men - Reversing the Future;
(2) Document information: X-Men Days of Future Past (2014) Blu-ray 2160p 4K HEVC DTS 5.1.MKV, 26.5GB, duration 2 hours 11 minutes 35 seconds;
(3) Code information: video resolution, code rate 27.4Mbps, format MKV, encoder H.264, audio AAC encoding
(4) Player: philips TV comes with USB playback function;
(5) Play Effect:
The play is smooth, the screen effect is general, and the color performance is general. As the overall picture quality of the 4K program is relatively unreliable, it is worse than the previously tested store samples and documentaries, and cannot fully demonstrate the advantages of the 4K quantum dot TV.
(The program is currently available on the Internet to find the highest quality 4K movies, the video is suspected Blu-ray ripping, the encoding effect is not very good, the file is only 26.5GB, has not yet reached the capacity of high-definition Blu-ray original disk, the program fully reflects the current high quality The current situation of the lack of 4K film resources, unfortunately SONY X10 4K player can not be used, otherwise the Dafa who emerged and competing
Fan Ye Town House
Fourth, high-definition broadcast test
1, Blu-ray source
(1) Program Name: Interplanetary Crossing
(2) File Name: Blu-ray Disc
(3) Player: Century Gray 5i-1500 4K/Blu-Ray Player
(4) playback effect: better
The color performance, sharpness, and light and darkness all reached the upper-middle level of high-definition programs, and the performance of high-definition Blu-ray videos in quantum dot TVs was quite satisfactory.
In the high-definition Blu-ray test, Panasonic TV performed well, with brightness and colorfulness not as good as quantum dots, but it was softer in light and darkness and over-coloured. The intuitive feeling was more realistic.
Above Philips, Below Panasonic
(6) Playback of other Blu-ray discs
2, Gehua HD playback
(1) Player: Gehua HD Set Top Box
(2) Play Effect: General
The main problem is that the colorization is obvious, the details are missing, the compensation algorithm of TV is not very good, and the viewing experience is not ideal. At the same time, there is a slight tailing phenomenon in the fast moving picture.
Panasonic plasma, on the other hand, was smooth and without smearing. In the case of unsatisfactory program source, the compensation algorithm was excellent, the colors and light and shade were excessively uniform, and the details of the faces and edges of the characters were soft. The playback effect was stronger than that of the LCD TV.
Above Philips, Below Panasonic
3, Gehua standard playback
(1) Player: Gehua HD Set Top Box
(2) playback effect: very general
The main problems are similar to those of previous Gehua HD playback. However, due to the further reduction of signal quality, the colorization is more serious and the details are less obvious. The compensation algorithm is very unsatisfactory and the viewing experience is not ideal.
Similar to Gehua's HD playback, Panasonic TV still performs well in the face of poor quality SD programs. Due to the restriction of imaging principles, LCD TVs do not have to compete at all.
Above Philips, Below Panasonic
V. QD TV 4K and High SD Testing Conclusions
1, high quality of program source
(1) Using quantum dots to watch high-quality 4K programs is a visual enjoyment
Mainly reflected in: bright colors, high color reproduction, strong contrast between light and shade, uniform color transition; overall transparent screen, clear details, soft facial features, natural transition.
Analysis of the reasons: 4K programs have high source resolution and are perfectly matched with quantum dot TV pixels. The wide color gamut of 4K encoding can give full play to the characteristics of the pure color and high color gamut of quantum dots TV. Part of the program's DTS audio encoding is also sufficient. Take advantage of Philips Sound.
Can fully achieve the quantum dot TV propaganda "shocking ultra-clear display quality, show extremely delicate, complete picture effect", using Quantum TV to see 4K, is a spiritual and visual feast.
(2) The use of quantum dots to watch low-quality programs, especially SD programs, is a kind of torment of the eyes.
Mainly reflected in: the color block is obvious, the transition is hard, the edges of the characters are blurred, and the details are lost. The whole feeling of the figure is spliced ​​out of one color block.
Analysis of the reasons: The resolution is too low to achieve pixel-to-pixel, resulting in quantum dots TV must be calculated to obtain the difference and fill gaps between pixels, the calculated color values ​​must be very different from the real picture, will inevitably lead to significant deterioration of the picture And excessive unevenness, while standard-definition or low-quality high-definition programs, the picture quality itself is relatively poor, the color information is not sufficient, after processing, the display effect is more pronounced.
In general, watching QDs with QDs can cause people who are pursuing picture quality to completely collapse.
2. Plasma TV abuses various LCDs in the display of low-quality programs
(1) Remember Panasonic Plasma
Unfortunately, Panasonic plasma TVs have been discontinued, and there is no 4K product that can be compared. However, the demise of plasma is not a technical problem, but is caused by market promotion and technical barriers. Plasma TVs are only promoted by a few manufacturers such as Panasonic, LG, Hitachi, and Changhong. And sales, the panel is not exported, fighting alone, eventually outnumbered.
Someone asked me before, what would be the choice of television, and I would tell them to watch the TV program choose plasma, watch pictures, play graphic election LCD.
(2) The outstanding dynamic resolution of plasma TVs
The imaging principle of plasma TVs has obvious advantages in dynamic resolution, interpolation algorithms and their display. Nothing can be seen in the motion picture, the low-quality programs have no color blocks, excessive uniformity, and soft contours.
Plasma TVs also have problems with large energy consumption and severe burn-in phenomenon, but they have been basically solved in the later stages of their lives. In fact, the biggest problem with plasma TVs is the screen's reflection. The plasma screen is a coated glass, and curtains are not hung in daylight environments. Can't watch at all.
Part 7 Smart TV
First, provide intelligent on-demand function
1. Integrated ICNTV network video on demand platform
Integrated ICNTV network video platform (Future TV Co., Ltd., CCTV China Network TV station CNTV).
2, not enough resources
The integrated content is mainly based on programs of CNTV.CN and CCTV. Other resources are also available, but the content resources are not rich enough.
On the smart TV homepage, the first window on the upper left will show the TV content before entering the smart network application.
(1) Documentary
All of them are content of CCTV, and the quantity is not much. The main push content is only two pages.
(2) Movie
There are many, but nothing new.
(3) TV series
A large number but failed to find local channels and hits.
(4) Variety
It is still dominated by CCTV programs.
. . .
(5) Convenient function
Search, historical footprints, program collections and other functions are all available, making it indistinguishable from boxes such as Xiaomi.
3, pre-installed software and features
(1) pre-installed software
(2) Preset WeChat function
(3) Pre-installed stock trading software
Second, Philips App Store
(1) Not worth mentioning, you want no APP!
(2) does not support the installation of third-party software
Confirmed with Philips customer service, because of SARFT related ban, in addition to the software provided in the Philips App Store, you can not install any third-party software through SD card, USB, etc., that is to say, you want to install a polymerization application, video client, Radio and other APP software for resource expansion are all imaginative.
(3) I only installed a screen detection software
(4) Smart TV system running fast
No obvious delays and waits. Page refreshes, page-forwards and page-turns, and resource loading speeds are all very desirable. The human-computer interaction experience is excellent.
The eighth part of the public test summary
First, the advantages
1, screen size is moderate, to meet the viewing needs of most families;
2, stylish design, ultra-thin frame, the overall thickness control in place;
3, perfect screen, no bad points;
4, the use of quantum dots and 4K screen, bringing higher color gamut and more realistic picture reproduction, especially 4K program playback is very good;
5, built-in processor, strong computing power, system response speed, comes with smart TV function, no external TV box;
6, USB playback powerful, SD, HD, 4K take it all.
Second, insufficient
1, there is a virtual button on the remote control;
2, 4K screen when watching standard definition or low quality HD, the effect is not ideal;
3, rapid motion picture, a slight tailing phenomenon;
4. Unable to install non-official APP software to expand the TV function;
5, integrated on-demand platform, content resources are not very rich;
6, HDCP version of the HDMI interface is too low to support the Sony FMP-X10 player;
7. There are only 2 HDMI interfaces and the quantity is slightly less.
You are hard-working, thanks for watching!
Eye kill
July 28, 2015