/Related knowledge science:
1, turn on the TV "definition" adjustment button and set the definition value to "0". The higher the definition, the sharper the edge of the picture, the more serious the distortion, and even spots will appear.
2. Set the "Image Noise Reduction" of the TV set to "Off". The image denoising function is like the "freckle" function in computer image processing. Although the spots on the face have been removed, the details are gone.
You can adjust the saturation of the screen according to your preference. If you like bright colors, the saturation is slightly higher, otherwise, it is lower.
4. The image layering determines the contrast of the picture. When the contrast is strong, the layering of the picture will be reduced, making the image appear stiff, some details of the image will be lost, and the sound may interfere with the picture. If the contrast is low, it will lead to the reduction of layers and it will be very laborious to watch.
5. There are many brightness modes of TV. Generally, soft mode is more comfortable, but it is easy to get tired after watching it for a long time, while sports mode is bright and dazzling after watching it for a long time. In fact, as long as the brightness is not dazzling, it seems that the eyes are not tired.
6. When setting, you can use a clear photo with a facial image as a reference. At this point, the effects before and after setting are easy to distinguish.
What is the resolution of TV HD picture made by PS? What is the resolution of TV HD picture made by PS?
Pixel width 1920, height 1080, high definition, equivalent to a 23-24 inch LCD TV screen, and more 1024.
How much resolution does a picture have to be considered as a high-definition picture?
The video has standard definition, but no picture. It should be more than 200 pixels (1600* 1200), with a ratio of 4 to 3.
Look for high-definition pictures of Liu Yifei, with a resolution of over 3,000× 2,000.
7853
You can find high-definition football pictures to download there, with high resolution.
Baidu search
What is the high-definition resolution of satellite TV?
Resolution of some high-definition channels in satellite TV
Ground wave:
MPEG4 HD Emerald 1920* 1088
Asia HDTV 1920* 1088, MPEG4
Aoshi HDTV 1920* 1080, MPEG2
68.5 degree satellite
MPEG4 NHK HD 1920 * 1088
100.5 degree satellite
French Fashion 1920* 1088, MPEG4
MPEG4 national geographic 1440* 1088
Deluxe HD 1280* 1088, MPEG4
1 15.5 degree satellite
CXC-HD 1920* 1080，MPEG2
CCTV-HD 1920* 1080，MPEG2
CCTV 1-HD 1920 * 1080，MPEG2
Oriental HD 1920* 1080, MPEG2
125 degree satellite
Beijing HD 1920* 1080, MPEG2
Zhejiang HD 1920* 1080, MPEG2
Jiangsu HD 1920* 1080, MPEG2
Guangdong HD 1920* 1080, MPEG2
Shenzhen HD 1920* 1080, MPEG2
Heilongjiang HD 1920* 1080, MPEG2
Hunan HD 1920* 1080, MPEG2
138 degree satellite
MPEG4 CCTV HD 1920 * 1088
CCTV 1-HD 1920 * 1088，MPEG4
Asia HDTV 1920* 1088, MPEG4
MPEG4 Beijing HD 1920* 1088
Hunan HD 1920* 1088, MPEG4
Hd sports 1920* 1088, MPEG4
Hd movie 1920* 1088, MPEG4
Explore high definition 1920* 1088, MPEG4
Hd recording 1920* 1088, MPEG4
For reference! I hope it helps you. If in doubt, please ask in time! If you are satisfied, please adopt it. ......
The resolution of high-definition satellite TV signal is 1920* 1080.
Digital satellite tv is a form of broadcasting and television, which uses geosynchronous satellites to transmit digitally encoded and compressed television signals to users. There are two main ways.
One is to transmit digital TV signals to the front end of cable TV, and then the cable TV station converts them into analog TV and transmits them to users' homes. American DirectTV Company is the first satellite TV operator to apply this technology.
Another way is to transmit digital TV signals directly to users' homes, that is, DirecttoHome(DTH).
Compared with the first mode, DTH mode satellite has high transmitting power and can be received by a smaller antenna, which can be used by ordinary families. At the same time, it can directly provide user authorization and encryption management, and develop advanced TV services such as digital TV, pay TV (PPV) and high-definition TV, without being restricted by intermediate links. In addition, DTH mode can also be downloaded at high speed through the Internet and interactive TV.
Digital satellite tv is a form of broadcasting and television, which uses geosynchronous satellites to transmit digitally encoded and compressed television signals to users. There are two main ways.
Use PS to design pictures on pvc board. What resolution is used?
Designed for screen display, the general resolution is 72dpi. For printing, the resolution should be set to 300dpi. All right!
What is the resolution of HD?
According to the standards set by the film and television industry, the lowest HD is 1280*720, which means that 720P video has reached the minimum standard of HD. In this way, if the dynamic pixels are equal to or greater than 1280*720=92 1600, that is, 920,000 pixels, it can be said that high definition has been achieved. Later, due to the development of technology, our requirements for clarity gradually improved, and the picture format changed from 3: 2 and 4: 3 to 16:9 in the HD era. Later, due to the development of Blu-ray player (BD), full HD has become popular, and the requirement of full HD is 1920* 1080. This is also the high definition in our general consciousness, but it is often confused by businesses because of international standards. With the development of science and technology, 4K devices have begun to appear. There are two kinds of 4K devices, film industry 4096*2 160 and home TV 3840*2 160. The former is used for film production, and the latter is the most commonly used resolution of 4K TV on the market. 4K has been dubbed "ultra-clear", "ultra-clear" and "ultra-high definition" by many domestic businesses. Due to the development of technology, many electronic devices have the function of calculating pixel interpolation. For example, your TV can only play full HD, but after electronic calculation, the pixels in the picture are divided into two and converted into pixels close to 4K, but the definition is not improved. When calculating the HD problem, be careful not to confuse it with the real problem, and make it clear whether it is calculated or actual.
What is the picture resolution of the web page format?
The resolution of web images is generally set to 72px/ inch.
The higher the picture resolution, the larger the picture file and the slower the display speed. If the plot is printed, it will be different, and it is generally set to 300px/inch.
In ps, what is the resolution of width 54 and length 90 put into HD picture?
In your question, the concept of image processing is confused.
1. In image processing, the width is 54 and the length is 90. If there is no unit, it defaults to pixels.
2. The resolution is expressed as follows: 72/ inch.
3. High-definition images refer to large pixels and high definition. In image processing, there is no specific standard for the concept of HD, which is just an adjective.
4K Ultra HD is less than 10,000 yuan Skyworth 50E780U TV evaluation IT 168 Evaluation 4K is the hottest technology in the home appliance industry at present, and basically all manufacturers have or will soon launch related products. Today we got the 50-inch model 50E780U from Skyworth, a leading domestic enterprise. The resolution of this TV is 3840×2 160(4K×2K). A single chip based on UHD can decode and play 4K×2K ultra HD video. The most important thing is that the price is less than 10 thousand yuan, which is no longer out of reach with ordinary full HD TV. Let us see the dawn of the popularization of 4K TV.
It is understood that Skyworth 4K Ultra HD TV released this time adopts Chi Mei's LCD panel and Realtek's single-chip solution, which can not only display 4K-level pictures, but also connect storage devices through USB interface to directly play 4K resolution ultra HD video files. In addition, through the built-in 4K ultra-high list chip, Skyworth's new 4K ultra-high definition TV can be compatible with 1080P/ 1080i full HD film source. Through intelligent calculation, the image tracking compensation is carried out on the spatial axis plane, and four pixels are inserted around each pixel point to accurately restore the horizontal and vertical line field information. The improvement rate is 70%, and the overall improvement is 2.89 times, reaching approximately 4K.
At present, the online price is less than 10 thousand yuan.
In addition to ultra-high-definition resolution, Skyworth's new TV also has the characteristics of smart cloud tv, with built-in fitness functions such as table tennis and yoga. The newly added "personalized UI" provides login methods such as face recognition, voice command and remote control, which can provide the most suitable interface and theme application according to the basic information of users. Before we start the evaluation, let's take a look at the parameter list of this TV:
Skyworth 50E780U Detailed Parameters
type
LED backlight LCD TV
measure
50 inches
the physical resolution
3840×2 160
Optimum viewing distance
3.5 meters
3D type
Active shutter type
extended function
USB playback, smart TV
major port
HDMI×3、USB×2
Reference selling price
7204-9350 yuan
What exactly is a 4K TV?
It can be said that 4K TV has become a new hot spot in the TV industry. I'm afraid no one could have predicted it at the beginning of the year, but it was precisely when smart TV seemed to monopolize all the topics of flat-panel TV that 4K TV suddenly appeared in the new product series of several major TV brands this year and became the focus of attention. In addition to the Skyworth 50E780U to be tested today, manufacturers such as LG, Toshiba, Sony, Konka and Hisense have also launched 4K TVs soon, and a 4K TV war is imminent.
So what exactly is 4K? First of all, it should be clear that 4K resolution does not refer to a specific value, it refers to about 4000 pixels in the horizontal direction, which is slightly different according to different application fields.
▲4K resolution is slightly different according to the values in different fields.
For example, we often say that the resolution of 4K movies is 4096×2 160, which is determined by the imaging format of 4K cameras. In the TV field we are discussing, because the screen 16:9 has become the mainstream, 4K of TV screen refers to the physical resolution of 3840×2 160, which is equivalent to the level of1920×1080 (1080p). We can use an easy-to-understand example to illustrate that four full HD screens are seamlessly spliced according to four squares to display images with four times full HD resolution, which is the difference between 4K and full HD.
▲4K has four times the image quality of 1080P.
We can only see the difference from the pixels. 1366×768 HDTV can display/kloc-0.0 million pixels, and 1920× 1080 is only about 2 million pixels. 4K TV has more than 8 million pixels, which is close to the standard of mainstream digital cameras10 million pixels, and greatly improves the accuracy of image display.
How's the workmanship? Appearance analysis of Skyworth 50E780U
Skyworth 50E780U retains the mold of the previous flagship model in appearance, with a gray metal wiredrawing frame, crystal-like edging below the frame and black plastic edging on the other three sides, so the overall feeling is still quite high. Because the machine adopts LED backlight design, the body is slim. In addition to its slim body, Skyworth 50E780U also adopts a narrow bezel design, which makes the TV screen look wider and has a better view.
▲ Front design
▲ Back design
▲ Side and corner design
Skyworth 50E780U adopts silver-white metal base, which is more exquisite and beautiful. Unfortunately, its base does not support horizontal rotation.
▲ base part
▲OSD key part
In terms of interface, the back of Skyworth 50E780U is equipped with HDMI, audio input, VGA and TV antenna interface. The side provides color difference component interface, USB, audio interface and network interface. Numerous interfaces can meet the needs of users to watch TV, surf the Internet, watch high-definition movies and enjoy music.
▲ Interface part
The remote control part needs to be introduced emphatically. In addition to supporting common functions, the digital buttons actually adopt a design similar to a notebook touchpad. You can switch mouse icons by pressing the switch button in the upper right corner. For users who are used to using notebooks, this function is very convenient and practical, and the input efficiency is greatly improved.
▲ Remote control part
▲ Remote control part
In addition, the TV I tested does not support voice input function. According to Skyworth engineers, this remote control actually has voice input function, but it needs to wait for the latest software update support, and it is expected that the voice function will be realized soon.
▲ Free shutter 3D glasses.
Summary: Beautiful design and excellent workmanship.
Skyworth 50E780U Intelligent Platform Test
Skyworth 50E780U is not only a 4K resolution TV, but also a smart TV equipped with Android 4.0 system. The main interface is designed in a brand-new style, and key functions and menu items are reflected on the screen in the form of small icons. The top left corner of the interface shows what the TV is currently playing, which looks more intuitive and clear.
▲ Newly designed UI interface.
▲ You can check the details of this TV in the settings.
App Store: Dozens of TV-specific apps.
▲ App Store
Skyworth 50E780U's app store interface is very similar to Apple's iBook interface. There are more than 40 apps in the store, and the number is small, but they are all applications launched for TV. The download and installation of the application are very simple, just click download in the local store, but according to the actual measurement, the playability is not high, and there are some tips of installation failure. I hope Skyworth can improve after the update and upgrade.
▲ Program download interface
Get rid of sub-health Skyworth Cloud Health Software
In addition to going to the app store to download, the fuselage also comes with some excellent programs, which is the first to promote Skyworth Cloud Health. It is understood that cloud health is a family health planning system jointly developed by Skyworth and authoritative medical institutions. Based on professional health detection system, combined with wireless transmission technology, we can measure health indicators such as weight, fat and blood pressure in cloud tv in real time, and manage, analyze and enjoy the data through the cloud platform, so as to tailor a reasonable health plan for family members and cultivate their healthy living habits.
▲ Health plans can be customized according to different family members.
▲ Main test items
▲ Skyworth Cloud Health Test Interface
Weight test, fat test and blood pressure test are connected to cloud tv via wireless WIFI. In the process of weight test, users standing on the weighing scale can accurately display the current weight on TV, provide professional advice according to the results, and check the historical curve changes.
▲ Some instruments under test can be bought in Skyworth cool open Mall.
Cloud sharing function
Skyworth 50E780U comes with its own cloud platform, and the cloud hosting He Yun Community is a Skyworth cloud tv user exchange community with individuals as a unit, which can meet the needs of users to share information such as applications and videos, and its function is similar to that of Weibo.
▲ Cloud sharing platform
▲ You can share your favorite video music.
Summary: the number of applications is small, but it is very distinctive.
Skyworth 50E780U video playback function
As a TV, the most important function, of course, depends on video playback. To put it bluntly, the film source is rich enough. Skyworth 50E780U has built-in Youpeng film and television components, providing a large number of online video series on demand. According to preliminary statistics, there are about a thousand movies, and the general definition is between 480P and 720P p. In addition, because they are all copyrighted genuine movies, there are few new movies, and the film library is slightly slower to update, but there are many classic nostalgic movies worth seeing.
▲ Built-in Youpeng Film and Television
▲ Movie interface
Youpeng Film and Television also provides a variety of video categories, including animation, variety, children and other very rich content to ensure that the whole family can find suitable films.
▲ Children's programs
▲ Video playback
All videos can be fast-forwarded, played back or paused, which is easy to operate and can be realized by two self-contained remote controllers.
▲3D film source area
Skyworth 50E780U also provides a source area for 3D movies, with more than 20 native 3D movies to choose from. In addition, Skyworth also has the function of converting 2D to 3D with one button. Even for non-3D movies, 3D effect can be achieved through conversion, but the effect is poor compared with the original film source.
▲3D function adjustment
If you still feel that the supply is small, it doesn't matter. Skyworth 50E780U can also play videos of browser pages. The author tested Youku and Tudou, and the videos can be played smoothly. Then the author tested Iqiyi, and the result could not be played.
▲ Youku video can be played normally and displayed in full screen.
Summary: Skyworth 50E780U comes with fewer film sources, but it can play videos through web pages, which can basically meet the needs of ordinary users.
Skyworth 50E780U Network Browsing and Additional Functions
Skyworth 50E780U has a built-in browser, and the specific browser type is unknown. After opening, it is an aggregation interface, which can directly visit some well-known websites, and of course, you can also directly enter it in the address bar. As mentioned earlier, the remote control of Skyworth 50E780U supports the function similar to that of notebook touchpad, so it is particularly convenient to operate.
▲ Built-in browser navigation page
▲ The page display is normal.
▲ Support network video
The page layout is normal, consistent with PC, and it can also display page video, supporting small window playback or full screen viewing. However, in the process of web browsing, the author encountered a flashback phenomenon, and the display browsing stopped running and returned directly to the main menu. The stability of the system needs to be strengthened.
▲ Flashback occurred.
Additional functions: USB playback
Playing movies through the USB port of TV is an important function of big-screen TV, and the number of supported formats directly reflects the decoding ability of TV. The actual measurement shows that the external 320G mobile hard disk of this TV can be recognized normally, and the mainstream video formats such as MKV, AVI, RMVB and MP4 can be decoded successfully, and the 1080P file can be played smoothly.
USB play file test
Movie title
Storage form
resolution ratio
affect
A Chinese Odyssey
MKV (bilingual audio track)
1024×576
Normal play
Jacky Cheung concert
AVI (external SRT subtitles)
1920× 1080
Normal play
No.4 key
MP4
624×336
Normal play
those years
RMVB
1024×576
Normal play
Mayday MV
VOB
720×480
Normal play
▲USB supports all major video formats.
Additional functions: shutter 3D function
Skyworth 50E780U adopts shutter 3D technology, which is also a widely used solution for most mid-to high-end 3D TVs. Compared with the previous shutter 3D glasses, the weight of the 1 pair of 3D glasses attached to the 50E780U is greatly reduced, which is basically equivalent to polarized 3D glasses, and the wearing comfort is also obviously improved.
▲3D video playback
In terms of 3D effects, the details of depth of field are excellent, especially the 50-inch screen with ultra-narrow border, which gives people an immersive shock.
Additional functions: somatosensory games
Skyworth 50E780U also has a built-in healthy sports area, where users can download somatosensory games, but the somatosensory game equipment needs to be purchased separately.
▲ Somatosensory Game Mall
▲ Game download interface
Summary: The webpage display is normal, USB supports multiple video formats, and the shutter 3D effect is excellent, supporting 2D-3D.
Skyworth 50E780U Image Quality Performance Test
Skyworth 50E780U, as an ultra-high-definition TV, is naturally most concerned about the performance of image quality. How much does the resolution of 4K×2K improve the picture? In order to complete the test, we specially commandeered a high-end computer host from DIY department as a video source (which requires higher graphics cards), because there is no player that can output at 4K2K resolution, let alone broadcast and television signals. In the test, HDMI 1.4 is used to connect the computer host and the TV, and the resolution of 3840×2 160 is automatically recognized after the computer is turned on. It can be seen that Skyworth 50E780U adopts the native 4K panel.
▲ The resolution is automatically recognized to 3840×2 160.
▲ Panel pixel close-up adopts Chi Mei's wide viewing angle panel.
Although the resolution has reached the 4K standard, we see that the refresh frequency of the screen is limited to 30 Hz. This is because in the HDMI 1.4 specification, three field frequencies are defined for the output with 3840×2 160 resolution: 24Hz, 25Hz and 30Hz. This refresh rate is no problem at all when watching movies, but for FPS shooting games and sports racing games, it is best to reach more than 60 frames in order to achieve smooth operation, so there may be a jam when playing games.
▲ The refresh rate is limited to 30 Hz at most.
At 4K resolution, the maximum refresh rate is limited to 30hz. Since Skyworth 50E780U is a shutter 3D TV, theoretically, the refresh rate must be above 120hz to achieve 3D effect, but it can only reach 30hz when using HDMI output. Therefore, to achieve 3D effect, it can only be achieved at full HD resolution of 1920x 1080.
▲4K resolution games cannot turn on the 3D function.
The following is the test link of professional instrument BM-7. When turned on, the brightness of Skyworth 50E780U reached 283 lumens, which reached the mainstream level of LED backlight TV at present, and the details of light and dark parts were excellent. The color gamut reached 78%, covering the color range of SRGB, which performed well. The dynamic definition of line 400 is relatively general, but it is not good for fast-changing dynamic picture scenes.
▲ Color gamut reaches 78%
▲ Dynamic picture definition test link
▲ Dynamic clarity
Summary: The picture quality is above average, and 4K+ shutter 3D needs to be improved.
Skyworth 50E780U Image Quality Performance Test II
Because the size of Skyworth 50E780U is much smaller than many 84-inch 4K TVs on the market at present, the effect of 4K at first glance is slightly lower than that of 84-inch TV. However, because the number of pixels to be arranged on a 50-inch screen has reached 3840×2 160=8294400, when you watch it at a very close distance, you will still be shocked by its delicate picture quality. Theoretically, pixels per inch have reached the standard of desktop display. As a 50-inch TV, the distance of 1 meter is basically not grainy when playing 4K pictures.
▲50-inch Skyworth 50E780U and LG84-inch 4K TV contrast real shot.
▲4K and full HD contrast real shot
Let's release a set of real 4K ultra HD pictures and videos. Screenshots are inevitably slightly distorted, but through the comparison of different pictures, we can still see the accuracy of color expression and the nature of transition. (The following pictures are acceptable, and the video part is the 4K demo video of Chi Mei and LG. )
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
▲4K ultra HD real shot
Summary: the effect is shocking and the picture quality is delicate.
107W Summary of Skyworth 50E780U Power Consumption Evaluation
In the power consumption test, the author tried the power consumption in different application situations. The results show that the startup power consumption is 107W, which is relatively energy-saving due to LED backlight. However, in the case of 3D mode and USB HD playback mode, the power consumption reaches 1 17W, indicating that the decoding chip inside the TV still needs to consume a lot of power.
Skyworth 50E780U
Power consumption test
available machine time
65 seconds
Channel switching speed
quick
Watch TV program
107W
3D mode power consumption
1 17W
In addition, because this TV adopts the Android smart operating system, the startup time is also relatively long, reaching 65 seconds, and the operation fluency is relatively average, which may be related to the imperfect optimization of Android 4.0. However, its channel changing speed is still relatively fast, only less than 1 second.
▲ Skyworth 50E780U
Through previous tests, Skyworth 50E780U, as the first 50-inch 4K TV to be put on the market, has an impressive picture and exquisite performance. In addition, we can see that this TV has outstanding advantages in entertainment function. First of all, it is an intelligent application, which has customized functions and is more practical. It supports all mainstream video files played on USB. It is a very mainstream smart TV at present. By contrast,