First, preface
LG, who is an industry player across the coast of the Bohai Sea, was ranked second in the country after Samsung. Viewing its product line is comparable to SAMSUNG and its quality is also varied. After entering China, it was hard to catch up with SAMSUNG, and in the past few years, LG has changed its mind and made great changes.
At the beginning of the summer of 2015, LG united JD.com and Aunt Zhang, who released the 4K flagship “49UF6600 49-inch 4K ultra-high-definition IPS hard-screen smart LCD TVâ€, which has contributed 5 sets, which is the target of evaluation, and was launched for the first time. The monks are fortunate enough to have a list of evaluation and valued friends.
Since the beginning of 2003, LG has been in contact with LG. The first purchase of the product was the LG 7030 (the flagship of the mobile phone in 2003). Its impression was quite good. Today, it got its TV, and it's difficult to avoid personal feelings.
Remarks:
Using LG G2 mobile phones to take photos and videos, and using htc hero to take pictures individually, the pictures are not beautiful enough.
Due to the imminent addition of homes, the evaluation is more hurried, it will inevitably appear a state of blinding, the inadequacies, hope generously enlighten me.
Second, Aunt Zhang's distribution and manufacturer information
Manufacturer: Lejin Electronics (Shenyang) Co., Ltd.
Manufacturer: Xinpu (Guangzhou) Electronics Co., Ltd. (according to the drug-search: South Korea NEW OPTICS LTD headquarter was established in 2007. The company is located in Guangzhou Hi-tech Industrial Development Zone---Science City, which mainly produces LCD components. "Backlight source" and direct supply to LG Group (Lokjin Display (Guangzhou) Co., Ltd.))
Third, evaluation ideas and actual evaluation
(A) evaluation ideas: first soft (system) hard (hardware and workmanship).
(B) soft (system) evaluation:
1. Web2.0 system (manufacturer declares: webOS 2.0 operating system has three characteristics: simple switching, simple discovery, and simple connection)
(1) System homepage interface:
The "Simple Switching" of the homepage has indeed been reflected. Because there is no secondary menu, switching between applications and content is quick and easy.
(2) User Guide
The user guide is very detailed and can help everyone use the TV without using the manual. In addition, the Bean Bird's hand-to-hand fun guide, which is initially installed, is connected to an external device in an extremely convenient manner.
(3) China TV
The first time you need to update the number of tv software.
Although TV China TV feels that online programming resources are very rich, exciting programs are basically paid programs, which results in a significant reduction in their effectiveness. For users who are accustomed to using boxes to enjoy free resources, the number of TV sets with this number is somewhat higher. Chicken taste, better than nothing.
(4) Device connection options: It embodies the function of "simple connection". Relatively speaking, it is not too much troublesome. Through a few simple steps, you can connect smart phones, computers and other devices to the TV through wireless.
There are many device connection options, such as set-top boxes, Blu-ray/DVD players, home theaters, bar speakers, game consoles, smart phones, PCs, external storage devices, and others.
2. Usb direct play: plug and play, but not perfect.
Test Tools: (1) SanDisk Cruzer Blade 32GB U disk; (2) Seagate Seven 500GB mobile hard disk; (3) Seagate
Raptor 2.5-inch mobile hard disk 500GB.
(1) Flash Di U disk read interface. Can successfully read 32G U disk.
(2) Seagate Seven mobile hard disk read interface. Unable to read the data of the mobile hard disk, the TV display page is "Unsupported file system", and the device connection function is not perfect. It is regrettable.
(3) Seagate Raptor 2.5-inch mobile hard disk 500GB read interface. Nearly perfect readout of hard disk data (individual png images are not supported).
2.1 video playback
2.1.1 Flash Di U disk video test:
Flash Di U disk test results (the duck flew the video size is 493M).
Flash Di U disk test results. The 4K video in mp4 format was tested for smooth playback of all five videos without stalling.
2.1.2 Seagate Raptor 2.5-Inch HDD Video Test:
Pseudo-HD, so the TV display is normal.
2.2 Photo Playback
2.2.1 flash di U disk test results:
Flash Di U disk test results (unrecognized 3880p photo format is consistent with other image formats, are jpg)
Flash Di U disk picture shows very good results, the color is very beautiful (almost restore the original picture color). This is a 1920P picture effect.
Flash Di U disk picture shows very good results, the color is very beautiful (almost restore the original picture color). This is a 3880P picture effect.
Take a closer look. Seems to see fine pixels. 
The photos can be shared with LG's fun and reprocessed, but the effect of the choice is limited.
2.2.2 Seagate Raptor 2.5-inch Mobile Hard Disk Test:
Photo reading was successful and individual photos could not be read.
3. Audio and video software testing
3.1 Audio Test:
The audio test results are good and support formats are many, which can meet the needs of most people. Surprisingly, the flac format is supported, and the requirements for sound quality can also be met.
3.2 film test:
The playback interface is also relatively simple, with basic functions, automatic memory function, and easy playback.
Can play 3d video, but the format is the upper and lower formats.
3.3 Play Video Transcription:
With the LG G2 mobile phone, autofocus sometimes loses focus. Therefore, the effect is inevitably greatly reduced, and the screen occasionally appears unclear.
4. Smart Sharing (Finding audio and video files on different media media via the "Smart Sharing" function)
Sharing is internal (including various devices connected via data lines), not shared externally. Non-data line connected external devices need to go through other methods, such as smartshare software.
5. Multi-screen interactive
5.1 Multi-screen interaction Like a projector, wireless connection technology is used to project the screen of a mobile phone or other device onto a television, making the television the second screen of devices such as mobile phones.
5.2 The connection, the most simple mobile phone, the computer and the other kind of device is a bit more complicated, you need to download the software.
5.3 mobile multi-screen interactive test
5.3.1 Turn on the device connection of the TV, select the smartphone, and select multiple interactions after entering the page.
5.3.2 Opening the Sharing of Mobile Phones
5.3.3 Implementing Sharing
Multi-screen interactive effects of the photo page, the camera camera interface infinite derived, until infinity. Self-portraits can use this technology to create unique photos.
Video playback synchronization effect. Forgive the landlord a person is not easy to take pictures, take stock photos of Tucao.
6. Device connection software download problem
Provides a two-dimensional code for software download. It feels very human. Unfortunately, this machine sold in China does not take into account the uniqueness of the domestic environment.
Without technical means, it is impossible to download the device connection software by scanning the two-dimensional code.
7. Today's hit: It is a popular collection center. It is a "simple discovery" that is used to discover popular and exciting sections and episodes.
Basically, there is no framework for jumping out of the domestic box. Like many domestic boxes, the popular works of today are summarized and summarized by collecting viewing data, and they are recommended.
(three) hard (software) feel
1. Parameters Table:
Give an official list of parameters. However, the official list of parameters is not comprehensive enough, such as the audio format of the broadcast including the flac format.
2. Interface (this product interface is in the back)
Here is the main interface part, equipped with a network cable interface, audio input and output interfaces (including digital audio output), AV interface and cable antenna interface.
Rear side connector, equipped with two 1.4 version HDMI interface and USB 2.0 and 3.0 interface each one. The HIDI interface has specifically marked the DVI input, indicating that the DVI input can be done through the transfer method. The side HDMI and USB ports allow users to connect to other multimedia devices, such as various high-definition players (set-top boxes), game consoles, and large-capacity storage devices (the U-disk support is good, and the hard disk support is not perfect).
3. Exterior 
Overall appearance. The design is quite satisfactory, and the design of the ultra-narrow frame is good, but there is no surprise without a frame design. There is no place for special colors, but there is no special ugly place.
Ultra-narrow frame design actually uses “visual tricksâ€. As you can see from this photo, there is also a black border of about 2mm between the metal frame and the real screen. Because the color of the screen is extremely close, it cannot be seen at all without careful observation.
4. Workmanship and details
The overall workmanship is better, and it is lighter and thinner. The workmanship and detail handling are very meticulous, and the connection of various parts will not give people a rough feeling. The plastic on the back did not give people a cheap feeling. However, there are still some issues that need improvement.
Good design can add points to the product. These two details really do a good job.
Brushed metal effect, gives people feel more elegant. The reddish breathing light has the finishing touch (not liked or superfluous). 
The front and rear borders are too wide and there is room for further improvement.
The treatment at the red box is not perfect and there are slight flashes.
The metal flanges at the blue boxes are sleek and smooth. However, the plastic frame at the red box still has slight burrs and is not clean.
Fourth, the overall feeling (using the centile system to score separately)
Design: Better, 80 points can be given. Reasons: (1) Appearance design is quite satisfactory and there is no place to be surprised. Although the ultra-narrow frame design looks good, in fact there is a "visual trick" effect, the actual border is still a bit wide. (2) Cooling port, power supply, and side port design are relatively good. (3) The use of the front metal frame will help improve the quality of the TV. (4) The adoption of a large area of ​​the same color system is simple yet elegant. (5) More interfaces are enough to meet daily needs. (6) Part of the details still have room for improvement: such as the border gap problem, such as the flashing at the plastic corners.
Screen: The display is superior, giving 85 points. (1) The performance of color reproduction is very high. For rich pictures, the display effect is stunning. For light pictures, it will not add vinegar. (2) The color transition is natural and soft, not stiff. (3) The screen resolution and fine detail are good. When displaying a high-resolution picture or playing a high-resolution video, the graininess of the picture is basically eliminated. It may not be comparable to a number of top-tier products, but it should be within the first-stage contingent between its peers.
Web os operating system: quite satisfactory, can give 75 points. (1) It is relatively simple and not complicated. For the average person, it is easy to use. (2) The more distinctive device connection, although simple, but the actual operation is not as easy as imagined, the landlord studied more than an hour to clear out the multi-screen interaction (of course, may also be a bit slow due to the landlord). (3) The film and television collaborators chose Huadian TV, which can basically replace the domestic box. However, due to the fact that China TV update rate is not fast enough and there are few free programs, this function is a little tasteless, and it is far from being passed by many domestic boxes. Grab the resources of other websites to be rich and fast. (4) Whether there is an essential difference between smart TVs from other manufacturers, landlords cannot judge (because there are no other brands of smart TVs for comparison), but there is still a big difference from the “Internet of Things†that landlords had imagined. (5) Some software downloads are not well thought out, and there is a conflict with the actual domestic network environment. It is better to provide official websites with more convenient download channels. - Road is long for this operating system.
Speaker: Better, give 70 points. (1) Sound quality is OK, not thin. (2) After the sound effect is turned on, the effect will be improved, but you should expect that the 2 5w speakers will give you a big surprise or be exempted.
Price: The price is reasonable. (1) Foreign brands. (2) Excellent workmanship and concise operating system. (3) Can play 3d programs. (4) Excellent screen performance. (5) The initial price of Jingdong is 4,499 yuan (the price after the appointment exceeds a certain percentage).
Conclusion: If you own and use the network as the main program source, you may consider purchasing this product. If cable TV is the main program source, consider full HD TVs and avoid wasting 4k resolution.
V. Immature opinions to manufacturers
The gap between the front and the back of the frame, the process and then upgrade a step to solve the problem of too wide a gap. Or change the design and use a double wrap cover design for the front and back frames (that is, one layer covers the other).
Software downloads are provided on the official website of the country to prevent downloading due to special circumstances on the network.
Because of the breathing light, there is more empty space under the front and back borders, and it is easy to collect dust, and it is not easy to clean up. Whether the lower border design can be slightly widened, the breathing light is embedded in the metal frame, and the metal frame is transparent and more integral.
Remote control feel texture is acceptable, more functions, but the button is too narrow, easy to cause misuse, such as the return key / arrow keys / exit key spacing is too small, the landlord in the operating process countless misuse, it is recommended to re-design, Slightly stretched and widened, the use of metal brushing on the front may enhance the texture.
The support for the hard disk is not perfect, and the support for the old hard disk is better. For the new hard disk, the support degree needs to be improved. It is recommended to update the software to better support various hard disks.
6. Thanks
Thanks for what it's worth to buy, providing a platform for all measurement;
Thanks LG company for providing evaluation products;
Thanks to many editors for their passion.
Thank you!