Digital Photo Frame: Digital Photo Frame
(1) digital photo display digital photo frame is not the paper photo frame. Digital photography is bound to promote the development of the digital photo frame, because the world of digital photo printing less than 35%. Digital Photo Frame is usually a direct plug in the camera’s memory card to display photos, of course, digital photo frame will provide more internal storage space to access external memory card function.
(2) digital photo frame is a frame, but it is no longer used to show the way into the picture, but through a liquid crystal display, it can interface through the card reader to get photos from an SD card, and set the cycle show the way, more than the ordinary frame flexible, but also to the increasing use of digital photos is now a new exhibition space.
In short, digital photo frame is the viewing and sharing digital photos of special equipment.
"What is digital picture frame" supplement
(1) digital photo frame can display digital photos directly without printing out the photos and then display the new frame.
(2) It uses the traditional common frame of frame (exterior) shape, the traditional common part of the photo frame into the middle of the LCD display, coupled with the power, storage media and other components, can show (broadcast) digital photos, Meanwhile, in the same frame can be displayed within the loop (play) a different picture to the growing number of digital photos and pictures of people like to provide a better platform to display photographs and space.
(3) digital photo frame picture frame appearance with the traditional ordinary as (of course, also in size and style as with traditional ordinary frame can be varied choice), but unlike traditional digital photo frame as an ordinary digital photo-processing needs to be out and then loaded into frames on display, but through direct plug in the camera’s memory card or directly to the digital copying of digital photo frame memory can be immediately displayed in the photo frame, and it can store and display (playback) hundreds or even thousands of photos.
(4) described above, three single function digital photo frame (that is, only a digital photo display), in addition, there are multi-functional digital photo frame, which in addition to display digital photos, can also play MP3/MP4 / slide pictures, film / video / TV, you can also read books, to set the alarm and calendar, and even Internet Download photos, browse the Web; different types of digital photo frames for the different needs of people with more choices.
Principles and types of digital photo frame
Digital photo frame, also known as digital photo frame, the basic principle: the appearance of the ordinary frame shape, the original part of the photo frame into the middle of the LCD display, coupled with the power, storage media, etc., can play digital photo so within the same frame can loop pictures than ordinary single-function photo frame advantage.
Digital photo frame has three core components: processor, semiconductor memory and LCD display unit.
The traditional photo frame can be placed up to two photos before and after, some new couples want their wedding photos to show in the new house in more, and now there can be placed one thousand digital photo frame digital photos are sought after.
Digital Photo Frame can be generally classified into three types:
A simple function digital photo frame (only showing image in jpeg format)
2 Simple Multimedia Digital Photo Frame (can play music and videos)
3 advanced multimedia digital photo frame (usually wireless 802.11 connection, can download pictures from Web sites or e-mail)
4 digital photo frame printer (you can easily create their own family of digital printing shop, so family and friends to share the fun of digital life)
Most digital photo frame to slide (generally adjust the time interval function) in the form of display photos, digital photo frame can also play some video formats such as MPG camera movie clips or MP3 audio files.
The LCD digital photo frame
Most of the current flat desktop displays use liquid crystal display (LCD), most of which use active matrix thin-film transistor (TFT) display images. The early LCD screen is widely used in passive matrix liquid crystal display. Because of its limited viewing angle and can not become a mainstream desktop display. Put simply, TFT-LCD panels can be regarded as two sandwiched layer of liquid crystal glass substrate, the upper glass substrate with color filter (Color Filter), and lower transistors embedded in the glass there on. When the current changes in the electric field generated by the transistor, liquid crystal molecules cause deflection, in order to change the polarity of the light side, and then decided to use polarizers pixels (Pixel) the dark state. In addition, the upper glass and color filters for fit, form each pixel (Pixel) each contain red blue and green three colors, red blue and green colors of these issue will constitute the panel pixel image on the screen.
High prices also have a thousand dollars, as follows:
15-inch Digital Photo Frame / Photo Frame
Material: tempered glass (with Rui Sente UV lamp, UV technology is an advanced surface machining to do)
Features:
1.15-inch TFT LCD display, full-function remote control.
2.CF card slot, SD card slot and Observing the card reader, supporting CF, SM, SD, MS, MMC and other memory card.
3 video playback support MPEG1 (VCDSVCD), MPEG2 (DVD), MPEG4 (DIVX, AVI) format
4 audio playback support MP3/WMA format, JPEG format picture browsing support
5 stereo audio output.
6 support, or 2.0 USB 1.1 USB interface, you can add a computer or hard disk, U disk.
7 supports browsing images with background music function.
8 in English and other languages selection
Digital LCD display screen and the difference between on-screen simulation technology principle is not talked about here, as a digital photo frame user should consider their performance, the difference is as follows:
1 digital image processing of the entire screen in the process use a digital signal, no distortion, with the fidelity of the occasion; and mimic part of the driver circuit using analog signals, the signal transmission and conversion process will be loss there is signal to noise ratio problem, which is generally used in the display and the stability is not critical.
2 digital screen is high definition progressive scan signal, but the screen is interlaced analog video signals ordinary. For example, 7 "Analog Digital Photo Frame, corresponding to the NTSC system television signal, each frame contains 525 scan lines, remove the reverse process scanning, which effectively displays 480 lines, because it is interlaced, each containing only 240 scan lines As the system design reasons, only used as a mimic Shihai 234 of them, while philips digital photo frame with 7 "digital screen, each frame is a, 480 per line, to perfect reproduction of the images fine details.
3 digital screen display dynamic images for both, but also perfect to display static images. Early in the simulation screen used to display static images (digital photos), the flash will be shake and shake the feeling, in fact, only suitable for a class of dynamic display television images. But as technology advances, now part of the simulation screen in the display still pictures are also able to achieve close to the level of digital screen, consumers should pay attention to the difference between the actual product purchase screen quality.
4 price, of course, cheaper to mimic. But in terms of quality, digital screen is naturally good.