The large-sized color TV in the home recently had problems, and there were no images. SANYA Sanyo 1080i HDTV purchased from 2008.
My father immediately called for repairs. The image came out. , but the TV will be colored for a while and black and white for a while.
Maintenance masters are still uncertain.
This is not as fast as New Year's, so he decided to buy a new one.
This responsibility is naturally handed over to me. My dad's request is 50 inches or more. I can watch high-definition (already installed high-definition digital TV). He also went to the mall to watch a lap, see the Lenovo S90 introduced by others, have voice capabilities, can network, and 4K TV (father did not know what is 4K). Go home and let me search the internet for a price, um , Cheaper than shopping malls. So still decided to purchase online.
Buy a home appliance, of course, Jingdong, Suning better, looked around, the goal is basically set to choose between Hisense, LeTV, Lenovo S90 is said to remote control is relatively second, the reaction is not sensitive, and many features have to spend money to buy another module, so Give up directly. Of course there is another main reason to choose LeTV. Those who enjoy collecting stars know that now the domestic high-definition TV sets are all in AVS+ format. Let's use TV as Mstar 6A918 chip to directly support AVS decoding and play streaming. You know.
Before seeing Hisense LED50EC590UN, said that RGB is really 4K, and see online video free, or digital one machine (buy CAM kcal can), to save the use of set-top boxes. At first glance, the presentation was good, but at first sight, the appearance was obviously old and the back was heavy. And the Internet is said to be a special contribution to the Internet, but also in the official website can not find the model. The most curious is , The price changes every day, will be 4599, will be 4049, will be 3999 (this price I broke through to the small series, but Xiaobian said it was not the lowest price, not adopted).
Looked at the music as the official website of the product introduction, is basically divided into full version and a specific version (C Luo version, Zhang Yimou return), businesses for sales, but also quite fight , get so much added value in it. However, the purchase method is unacceptable. On Tuesday, it was in stock, and it was necessary to buy it. Other times were reservations. It took 4-8 ​​weeks to ship, and hunger marketing can't stand it.
. And customer service said that the S50 Air 3D C ROM version had recently been discontinued, and asked why. It was not clear why. This way, the official website cannot be bought at all.
Switched to major e-commerce companies and found that only Jingdong has a spot and the price is more appropriate, and orders are placed immediately. LeTV TV official website purchase contains 2 years of VIP ratings, Jingdong is the purchase with 30 months of ratings Among them, two years of viewing directly to you, the other six months of viewing need to confirm the receipt of the purchase, send a text message activation code to you, activated separately.
There is no professional camera, only 8m of certain meters 2 million, everyone make do with it (I come home from work, the TV has been installed by the master installed debugging):
Appearance packaging (the installation master contacted on the day of arrival, came the next day, so it still retains the unopened photo):
The production date is December, which is produced by Qingdao TPV. The brand of TPV is still relatively familiar and is known from the monitor:
No wall mounting but base mounting: 
Enter the TV project mode to see what screen is in the end, from the map point of view is the LG 14 generation screen.
About LG's 14-generation and 13-generation screens, there are also detailed comparisons on the Internet (from the MIUI Forum). Here is a simple science application:
The optical properties of the LCD panel are the most important. The data manual obtained from LG Display shows that most of the optical parameters of V13 and V14 are the same. The indicators that differ are as follows (listed from top to bottom):
Contrast
The contrast ratio of V13 is 12.5% ​​higher than that of V14. Contrast is the ratio of black to white on the screen, which is the gradient from black to white. The larger the ratio, the more gradient levels from black to white, and the richer the color performance.
Gray-scale response time
V13's gray-scale response time is 12.5% ​​faster than that of V14. Gray-scale response time is widely accepted as an important indicator of the response speed of liquid crystal pixels to the input signal. The shorter the gray-scale response time, the smaller the residual image of the liquid crystal screen. The clearer the motion picture.
3D viewing perspective
V13's 3D viewing angle is 45% higher than V14!
Note: The 3D viewing angle refers to the maximum angle from which users can deviate from the midline when they are watching a 3D program, while ensuring satisfactory viewing quality. The larger the viewing angle, the wider the optimal viewing range.
Transmittance
This is the only optical index of V13 below V14. The light transmittance of the two is about 1.2 percentage points lower. According to LG Display's official explanation, the glass substrate used in both V13 and V14 is the same material, that is, the original light transmission. The rate is the same, then why is the finished product different? This is due to the difference in the 3D polarizing film attached to the surface of the liquid crystal glass, in order to obtain a wider 3D viewing angle and a lower crosstalk balance. Transmittance refers to the proportion of the backlight through the LCD panel, but please note that this indicator is in fact not necessarily linked to the user's final viewing effect, because the user feels the screen brightness is determined by the transmittance and backlight, millet TV By choosing a more efficient LED backlight assembly (of course, the price is higher), a sufficiently high brightness output can also be obtained, so that the user does not need to worry about this parameter at all.
to sum up:
In summary, using V13, with a better backlight, you can achieve all the indicators of the overall victory, and use V14, due to the limitations of the innate conditions, can not be improved through the periphery.
TV screen effect:
LeTV has built a lot of its own carousel channels, and the categories are relatively small (football, basketball, movies, TV dramas, action movies, 1080P programs, etc.). Of course, there are a lot of software built in, such as weather, calendars, etc., but it is not very useful. To have a memory management function, I think it is good that Android systems generally have to clean up memory to meet more programs.
Advantages: smooth network viewing, full-featured, no advertising during the viewing process, and automatically skip the title, the end of the film, Mom and Dad watching TV no longer need to sit in front of the TV broadcast, and when you want to see. The rise of online television has brought a lot of pressure to many traditional television manufacturers. Of course, as consumers, they prefer such competition. The home-installed radio and television network sent 8M broadband, watching LeTV TV network TV is still very awesome (although with the TP-LINK single antenna 54M old wireless router), but watching no pressure. At the same time can also take into account the computer and mobile WIFI wireless Internet access. Of course, considering that more and more wireless devices need the network in the future, it is still necessary to replace the more powerful wireless routers in the future. I hope that Aunt Zhang can recommend more.
Disadvantages: There are still relatively few carousels and there are not many options available. And there is no live TV. Users also need to install such software as Taijie. LeTV TV accessories prices are not cheap, a somatosensory game camera actually want 799 yuan, when can ah cheaper?
There are many deficiencies in the bills and their capabilities. Please forgive me. Submit the sun bill for the first time, I hope Xiaobian can give it.