Foreword:
In the first year of this 3D TV in 2010, all major manufacturers launched 3D TV products, including Sony, Sharp, Samsung, LG, TCL, and Hisense. Recently, Toshiba has also introduced its own REGZA's first 3D TV - ZF1 series. Recently, Toshiba ZF1 series 55-inch 55ZF1C arrived PConline evaluation room, followed by this 3D new evaluation performance.
Product Model: Toshiba 55ZF1C
Reference Price: Unlisted
First, Toshiba 55ZF1C first evaluation after the test
The ZF1 series 3D TV uses the REGZA ENGINE PRO high-quality optimization engine and 200Hz frequency multiplication processing technology in its technology, and it also has environmental sensitometric control functions. In addition, it is worth mentioning that the ZF1 series has a 2D to 3D function, which greatly compensates for the shortcomings of the current 3D film source.
Toshiba 55ZF1C picture evaluation forum offer
From the parameter point of view, compared with the previous generation of flagship SV650, both applied overclocking 200Hz frequency multiplier technology, are all digital terrestrial machine, and ZF1 series increased the impact of 3D playback, the backlight is changed from direct For the side shoot type, a slim appearance is obtained.
Although the Toshiba ZF1 series offer has not been disclosed, but probably can be guessed from the performance configuration and level positioning its competitors are mainly Sony NX710, Samsung C7000, Hisense XT39 and other series. Toshiba's ZF1 series positioning is second only to the X1000 series, and it is equipped with an overclocking 200Hz double speed drive, while the streaming media function has been greatly upgraded to support video, audio and picture playback.
Quality performance, 3D effect is the focus of this evaluation, the author will be from the 3D effect, point to point, gray level, color performance, dynamic contrast, high-definition video, USB playback, power consumption comparison, etc., evaluation of the picture effect is only for For reference, let us immediately enter the evaluation article. >>
Second, Toshiba 55ZF1C Appearance Appreciation
Thanks to the use of side-shooting LED backlights, Toshiba 55ZF1C has achieved a slim body thickness, the application of metal frame enhances the texture of the machine, highlighting the elegant and introverted style, simple projection of the mystery and taste, but 55ZF1C Work on certain details needs to be improved.
Toshiba 55ZF1C picture evaluation forum offer
Toshiba 55ZF1C screen border has added a lattice effect, making its appearance more impact, in the upper left corner of the screen frame, still marked with "REGZA" logo, the lower left of the screen there is no other font logo, the lower right there is power work Indicator light.
Toshiba 55ZF1C screen frame details
Toshiba 55ZF1C screen frame details
Toshiba 55ZF1C LOGO is made of metal, with its black body with a more beautiful, base design is more creative, and will not make people feel stiff, but its base can not be rotated, the actual use is somewhat inconvenient.
Toshiba 55ZF1C creative base
Can be seen from the side view, 55ZF1C is quite thin, the body thickness of 39.8mm, compared with a commonly used IC card, you can see 55ZF1C body thickness is much smaller than the card, the thickness of the advantages are more obvious .
Toshiba 55ZF1C is quite thin
The ZF1 series has multiple radiator grilles on the back of the fuselage, which effectively improves the overheating problem caused by watching TV for a long time. The nameplate of the fuselage is in the middle, and the interface area is arranged in an inverted “L†shape, which is divided into the side interface area and the bottom. Set the interface area.
Toshiba 55ZF1C Back View
The Toshiba 55ZF1C fuselage nameplate identifies the detailed model and rated power of this LCD TV. The serial number is also posted here. The production address is not the former Dalian production base, but is the Huizhou City of Guangdong Province.
Toshiba 55ZF1C body nameplate
55ZF1C OSD button design in the side of the fuselage, including the standby button, channel selection, volume control, menu, input source selection a total of seven buttons.
Toshiba 55ZF1C OSD button
55ZF1C side interface area configuration is very rich and compact, from top to bottom in order for the 2 USB, 1 headphone jack, 3 sets of HDMI interfaces, a set of AV video input interface, there is a microphone input interface.
Toshiba 55ZF1C side interface area
The lower interface area includes a plurality of terminals such as a network LAN interface, a digital audio output, an antenna interface, a color difference interface, a VGA interface, an AV video input, and an AV video output.
Toshiba 55ZF1C lower interface area
The remote control of the 55ZF1C has significantly changed from the previous Toshiba remote control. The weight is very light, and the key setting is reasonable, but it is a pity that the comfort of the actual operation of the keys is general.
Toshiba 55ZF1C Remote Controller
From the appearance point of view, Toshiba 55ZF1C dot matrix effect is more dynamic, border design quite unique, coupled with a slim body makes its visual effects quite good, rich interface configuration, and need to improve is the work of the body details. >>
Third, Toshiba 55ZF1C menu layout
55ZF1C's menu interface is very different from Toshiba's previous models. It is divided into vertical and horizontal layouts. The options are indicated by text and icons. The interface is simple and easy to understand. The main menu includes channels, multimedia, information, and my account number. Set up five other items.
Toshiba 55ZF1C menu layout
The Toshiba 55ZF1C image setup offers several adjustment options such as image mode, ratio mode, backlight, brightness, contrast, chroma, sharpness, hue, color temperature, dynamic contrast, dynamic backlight control, and more. At the same time also supports automatic brightness sensing function, the user can open here.
Toshiba 55ZF1C image settings interface
Toshiba 55ZF1C offers four image mode options, namely, bright, standard, movie, and self-setting. The following is the screen shot of the author's setting the TV in the standard, movie, and distinct modes. Users can refer to the comparison.
Toshiba 55ZF1C standard mode effect
Toshiba 55ZF1C movie (left) bright (right) mode effect
Fourth, Toshiba 55ZF1C point to point test
During the peer-to-peer test, the PC used by the author was the Lenovo ThinkPad SL400 series, and the signal was input to the TV through the HDMI interface. First set the PC resolution to 1920×1080, the refresh rate is 50Hz, and then set the 55ZF1C screen display to “raw†mode in the menu. 55ZF1C full HD point-to-point is presented in front of the author. From the point of view of the actual display effect, Toshiba 55ZF1C text strokes clear, full HD point-to-point effect is satisfactory.
Toshiba 55ZF1C Full HD Point-to-Point Effect
In the Monoscope full HD 1080p signal test, the 55ZF1C performed relatively well on horizontal lines, vertical lines, oblique lines, and circles, and for the performance of 1080p lines, the adhesion of the four lines was very slight.
Toshiba 55ZF1C Full HD Point-to-Point Effect
The following is a close-up view of the Toshiba 55ZF1C LCD panel. From the pixel shape, the white, red, blue, and green colors are arranged vertically and rectangularly. This type of pixel is common with various panel pixel shapes. The difference is that the specific type of panel is unknown and it needs to be further confirmed.
Toshiba 55ZF1C panel pixel close up
The Toshiba 55ZF1C menu interface is displayed graphically, making it easy to see at a glance, with a rich selection of parameters, and the user can adjust it according to personal preferences. The 55ZF1C full HD point-to-point effect is excellent, and the performance of the Full HD signal test is clear. >>
Five, Toshiba 55ZF1C 3D principle of analysis
There are many ways to achieve 3D video viewing, which can be mainly divided into naked-eye type and glasses type. Among them, the naked-eye raster display method and holographic display method are difficult to achieve, and it is expensive and difficult to popularize. Spectacle type is divided into color separation method, light division method, time division method and other technologies, color separation method is the earliest and cheapest 3D technology, but easy to cause color cast, 3D effect is also the worst; light division method that is high school textbook introduction The polarizing 3D technology is better than the color separation method, but the screen is difficult to achieve full HD, brightness is relatively low; time division method is also known as active shutter 3D technology, widely used, excellent results, the disadvantage is that glasses are expensive and some of the screen will A sense of flicker.
Toshiba 55ZF1C 3D principle of analysis
Toshiba 55ZF1C uses active shutter 3D technology, the principle is this: the screen will be displayed to the left eye to see the picture, then the glasses will cover your right eye simultaneously, a bit like pirates wear eye masks. Then, the screen will quickly switch to the right eye. At this time, the glasses will turn to cover your left eye and make sure that the picture you see is correct. This process alternated very quickly, reaching 120 times per second, so it was impossible for the human eye to see this shift.
Toshiba 55ZF1C 3D principle of analysis
Toshiba 55ZF1C 3D signal receiver uses an external method, the volume is not large, it feels very light in his hand, and its 3D synchronization port on the top of the fuselage, hidden very cleverly, fully aware of its presence when the positive view .
Toshiba 55ZF1C 3D Signal Receiver
3D signal receiver installed after the effect
Toshiba 55ZF1C comes with 2 pairs of 3D glasses. Its design is relatively large. Even if the user wears glasses, it will not show any obvious discomfort. The frame of the glasses is relatively thick, with one side for two button batteries and one side with a switch button.
Toshiba 55ZF1C 3D Glasses
Toshiba 55ZF1C uses the current mainstream active shutter 3D technology, its effect is better than polarized light 3D and color difference 3D technology, but the 3D glasses flash, crosstalk and angle problems are problems that need to be overcome in the future development. The high price of shutter-type 3D glasses is also one of the factors affecting its development. >>
Six, Toshiba 55ZF1C 3D screen effect
In order to allow users to experience the difference between 3D images and 2D images more intuitively, the authors used the naked eye and the 3D glasses to perform screen captures. In the naked eye, we see 3D images with ghost images. The picture taken through the 3D glasses is a 2D image. By comparing the two, we can still find many differences and the general effect of 3D images.
The first is the effect of depth of field. The following are the 3D pictures and the 2D pictures taken through the glasses. We can roughly feel the depth of field effect from the two different pictures of the figure and the face parts of the figure. I think the 3D picture is still quite real.
Toshiba 55ZF1C 3D Effect Test (Naked Shot)
Toshiba 55ZF1C 3D effect test (photographed through glasses)
Followed by the screen brightness, wear 3D glasses, the screen brightness is bound to have a certain loss, if you want to better see the details of the dark part of the screen, it must improve the overall brightness of the screen. From the actual effect point of view, when the brightness of the 3D effect screen is moderate, the brightness of the 2D screen appears to be high, and consumers need to make a balance between the two.
Toshiba 55ZF1C 3D Effect Test (Naked Shot)
Toshiba 55ZF1C 3D effect test (photographed through glasses)
Again is the screen color, compared to CCFL backlight LCD TV, LED LCD TV in the picture has made some progress in color, but is limited to LCD TV display principle, to improve the brightness of the viewing screen, the picture style will be slightly biased white effect.
Toshiba 55ZF1C 3D Effect Test (Naked Shot)
Toshiba 55ZF1C 3D effect test (photographed through glasses)
It is worth mentioning that Toshiba 55ZF1C provides 2D to 3D function, in the 3D menu, you can adjust the effect of the converted depth of field, which is divided into low, medium and high grades, users can choose according to their own preferences.
Toshiba 55ZF1C 2D to 3D Function Adjusts Depth of Field
The following picture shows a 2D to 3D scene with a “deep†effect. From the perspective of the screen view, although the stereoscopic effect of the converted 3D image is not as good as native 3D, this feature greatly reduces the 3D film source shortage. Problems come.
Toshiba 55ZF1C 2D to 3D (naked eye shot)
Toshiba 55ZF1C 2D to 3D (photographed through glasses)
The use of 3D technology in the LCD TV platform will inevitably create a problem, that is, the problem of viewing angle. The angle of viewing here is not the viewing angle, but the angle between the horizontal position of the 3D glasses and the TV. In a word, the problem is whether you can wear 3D glasses and watch TV on your side. From the actual playback effect point of view, Toshiba 55ZF1C wear 3D eyes to watch, in the glasses rotate to about 45 ° range, see the screen brightness, 3D effects are not significantly changed, when the angle exceeds 45 °, the glasses through The light rate will gradually decrease. When the glasses and the screen angle reach 90°, the screen will be completely covered.
Toshiba 55ZF1C 3D viewing angle test
From the perspective of actual playback effects, the depth of field of the Toshiba 55ZF1C is good, the three-dimensional effect is strong, the crosstalk phenomenon is relatively slight, and it also has a 2D to 3D function, providing users with another 3D experience, but based on its 3D display principle, the screen brightness Attenuation and viewing angle problems also exist. >>
Seven, Toshiba 55ZF1C gray scale comparison test
Since the screen shot has undergone the necessary software processing and is affected by the actual effect of the netizens' display, the screen displayed on the screen will eventually differ from the actual effect of the TV. Therefore, the actual effect is based on the author's text description. The author uses a Hi-Definition Reference Disc test disc, Sony PlayStation 3 as a Blu-ray player. The digital camera used was a Canon 50D with a Canon EF-S 18-200mm f/3.5-5.6 IS.
The first test was a 15-gradation gray-scale test. From the actual screen, the Toshiba 55ZF1C LCD TV performed satisfactorily, and each gradation can be easily distinguished. The distinction between 0, 1, 14 and 15 gray-scale is more obvious. obvious.
Toshiba 55ZF1C 15 Gradient Grayscale Test
In the black gray tolerance test, charcoal's line stripe road can be clearly seen in the charcoal backlight position, but the detailed performance needs to be strengthened, and the texture effect is general. In controlling noise, Toshiba 55ZF1C performed well and the overall results were satisfactory.
Toshiba 55ZF1C charcoal black test
Eight, Toshiba 55ZF1C color performance test
First of all, we used Display X to test the Toshiba 55ZF1C over the full color gamut. From the perspective of the picture, the color is bright and transparent, but the transition between pink and dark red, dark red and yellow appears to be hasty, red and yellow. The dividing lines between them are clearly visible.
Toshiba 55ZF1C full color range color transition test
In order to let everyone see the Toshiba 55ZF1C's ability to express various colors more clearly, the author chose a screen containing a variety of colors of wool balls. From the screen shots, it can be seen that the 55ZF1C is too dark when performing orange.
Toshiba 55ZF1C color performance test
For the color performance of the TV, the color that is most difficult to accurately display is golden yellow. In the test process, Toshiba 55ZF1C has a good performance for gold and pink, the color is accurate, texture is clear, there is no overexposure.
Toshiba 55ZF1C color performance test
Toshiba 55ZF1C color performance test
The following are the two girls who hold the red, white and yellow roses. The color of the three-color rose is accurate, but there is a slight deviation between the skin color of the girl's face and the real skin color, and the delicate feeling is not enough.
Toshiba 55ZF1C color performance test
Toshiba 55ZF1C color performance test
Toshiba 55ZF1C can clearly display 15 gradient grayscale, the overall black sinking ability is still relatively good, but the dark details need to be strengthened. 55ZF1C full color gamut color transition is more general, the performance of gold and other colors better, but the performance of skin color is slightly less accurate. >>
Nine, Toshiba 55ZF1C dynamic picture test
In this part of the test, users are required to pay attention to the front window of the fast moving train and the body plate of the car. The author used the same ISO and aperture in the shooting process. The parameters are ISO-400 and F4.5. The time is 1/100 seconds. Toshiba 55ZF1C uses a 200Hz frequency multiplication processing technology, from the effect of the train in progress, the front of the train part of the phenomenon of ghosting is relatively minor, the dynamic effect is satisfactory.
In the high-definition video of a section of vehicles that is played below, we need to observe the car's license plate and the outline of the car body. The Toshiba 55ZF1C can play smoothly for the entire video, with slight ghosting on the license plate and vehicle contours.
Toshiba 55ZF1C dynamic picture test
Toshiba 55ZF1C dynamic picture test
Ten, Toshiba 55ZF1C power comparison test
Toshiba 55ZF1C uses LED backlight source, rated power consumption is 190W, compared to the ordinary 55-inch CCFL LCD TV is very power-saving, and from the author's evaluation experience, the actual power consumption is even lower than the rated power consumption . The author uses the instantaneous power consumption test method, which is to measure the power consumption values ​​of the six screens of red, green, blue, white, black and color transitions in the standard mode.
Toshiba 55ZF1C power test
From the actual test results, Toshiba 55ZF1C in the standard image mode, the black screen power consumption is the lowest, only 88W, while the other several screen power consumption maintained at around 170W, energy-saving effect is ideal.
Toshiba 55ZF1C uses overclocking 200Hz frequency multiplier processing technology, the dynamic effect of clear and clear, the overall picture is satisfactory, while the power consumption in the standard mode is maintained at about 170W, compared to a 55-inch TV, energy-saving effect comparison Not bad. >>
Eleventh, Toshiba 55ZF1C HD video test
In the HD video test section, the author played the Dolby Blu-ray HD test disc and the Blu-ray documentary “Homeâ€. The first is a video of animal activity on the African savannah of the Dolby Blu-ray Disc, with more moving pictures and details. Toshiba 55ZF1C is accurate and clear for the zebra's hair color performance, and the aquatic performance of the zebra is gratifying, while the performance of the noise control of the highlight screen is general.
Toshiba 55ZF1C HD Video Test
Toshiba 55ZF1C HD Video Test
Next is the documentary "Homeland". The film is rich in color and has more natural environment. This will be able to better test Toshiba 55ZF1C's ability to express various colors.
Toshiba 55ZF1C HD Video Test
Toshiba 55ZF1C HD Video Test
From the actual playback results, Toshiba 55ZF1C on the performance of high-definition video screen is more ideal, smooth video playback, color reproduction is accurate, clear details, but some highlight the noise of the screen. >>
Twelve, Toshiba 55ZF1C Internet Function Test
The network setup items are included in the main menu settings. If you want to go online, you need to set some related items here. The 55ZF1C provides wired network and broadband dialing. After setting the IP address, gateway, etc., you can access the Internet.
Toshiba 55ZF1C Network Settings Interface
Toshiba 55ZF1C Network Settings Interface
Although the Toshiba 55ZF1C is equipped with a network function, the current network applications are still relatively limited. From the actual trial process, the author found that only the weather forecast function can be used, and online movie viewing cannot be implemented.
Toshiba 55ZF1C weather forecast function
Thirteen, Toshiba 55ZF1C streaming media function test
The Toshiba 55ZF1C's streaming media feature has been greatly upgraded compared to previous models, allowing the playback of movies, pictures and music, compatible with the current mainstream HD file formats, and support for RMVB, TS, MOV, JPEG, MP3 and other formats.
Toshiba 55ZF1C multimedia file browsing interface
Judging from the evaluation process, Toshiba 55ZF1C can smoothly play TS, RMVB format video. Next test the 55ZF1C high-definition video playback, the following is the TS format and RMVB format playback.
Toshiba 55ZF1C 1080p Full HD TS Playback
Toshiba 55ZF1C 480p standard definition RMVB playback
55ZF1C supports JPEG and other format picture playback. Here, I used a high-definition player to read the picture content. In the picture playing interface, the ZF1 series firstly displays the picture file and the name list, and the user can select the corresponding picture to select to play. In addition, on the playing interface, the user can also select the mode of sequential play, playback, static play, etc. Rotate.
Toshiba 55ZF1C and Haimeidi HD player link
Haimeidi HD player main interface
Toshiba 55ZF1C HD picture playback
Toshiba 55ZF1C support MP3 and other formats of music playback, ZF1 series also lists a list of music files in the storage device, at a glance, simple operation, but the music player interface is too monotonous, there is no detailed list of songs.
Toshiba 55ZF1C music playback
Although the Toshiba 55ZF1C provides a network interface, it only has a weather forecast function and cannot play online videos online. It is hoped that Toshiba will make network upgrades for future models. As for the streaming media function, the 55ZF1C can support multiple formats of playback, and the playback of high-definition video and pictures is also satisfactory. >>
XIV. PConline evaluation room summary
As the first 3D TV of Toshiba, the 55ZF1C adopts a side-shooting LED backlight source, applying the REGZA ENGINE PRO high-quality optimization engine, overclocking instantaneous 200Hz double speed drive and other technologies, not only can achieve 3D image playback, but also supports 2D transfer 3D function, streaming media features have also been a major upgrade to support video, audio, picture playback.
Toshiba 55ZF1C picture evaluation forum offer
Through the above detailed evaluation of multiple projects, PConline evaluation room evaluation performance of Toshiba 55ZF1C is summarized as follows:
2, HDMI interface can achieve full-resolution multi-resolution point-to-point;
3, application of ultra-thin LED backlight, energy-saving effect is obvious;
4, colorful, the overall performance is good;
7, smooth and clear dynamic picture, slight smear phenomenon;
8, streaming media support video, music, picture playback.
Toshiba 55ZF1C lattice design on the appearance can get better visual effects, slim body, lighter weight, play Blu-ray high-definition movie is very clear and smooth, 200Hz speed drive to ensure its dynamic effect. The 55ZF1C provides Internet functionality, but it can only query weather forecasts. Web applications need to be strengthened. The Toshiba 55ZF1C's 3D depth of field is clear. It also has a good performance in dealing with crosstalk. It can achieve 2D to 3D functionality, and can better solve the current shortage of 3D film sources. [Back to Channel Home]
Rectifier Diode(Standard Diode)
Rectifier Diode(Standard Diode) utilizes the unidirectional conductivity of the diode, which can convert the alternating current of alternating direction to a pulsating direct current of a single direction. Rectifier diode – diode designed for rectifying alternating current (mostly with low power frequency – 50 Hz at high power emitted during load). The main task of the rectifier diode is to convert AC voltage into DC voltage through application in rectifier bridges. The variant of rectifier diodewith the Schottky barrier is particularly valued in digital electronics.
Rectifier Diode,Standard Diode,High Power Rectifier Diode,High Voltage Rectifier Diode
YANGZHOU POSITIONING TECH CO., LTD. , https://www.yzpst.com