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Storage of Digital Art Frame

2021-08-19

storage card:
Only a few digital photo frames have built-in memory. Due to price factors, these photo frames are usually very expensive and have very little memory.
Number of digital photos that can be stored in the card:
Total number of pixels per photo 256MB 512MB 1GB 2GB
2 291 582 1164 2328
3 225 449 898 1796
4 136 272 545 10905 100 200 400 800
6 84 165 329 658
For a digital photo frame with a USB interface, the photos in the memory card can be directly uploaded to its internal memory through a USB adapter.

Brushed metal:
1.7 inch TFT LCD
2. Resolution 480X3(RGB)×234, dot matrix pixel 0.107(W)X0.370(H)
3. Visual range: 154.08(W)X86.58(H)
4. Brightness: 250cd/m2
5. The picture adopts hard decoding, and the playback format: JPEG supports 16 million pixel pictures
6. Compatible memory card: SD, MMC and other popular Flash Card cards
7. Can support 32MB-4G SD card
8. High-speed USB2.0 interface, connect storage media such as U disk
9. Support multiple language formats such as Chinese and English
10. External DC power supply (5V 1A)
11. Accessories: power adapter, bracket

Screen difference:
The difference between the digital screen and the analog screen of the LCD liquid crystal display will not be mentioned here about the technical principle. As a digital photo frame user, you should consider their performance. The differences are as follows:
1. The digital screen uses digital signals in the entire process of image processing without distortion and is used in high-fidelity occasions; while the analog screen uses analog signals in part of the drive circuit, there will be losses in the signal transmission and conversion process. There is a signal-to-noise ratio problem, so it is generally only used in occasions where the display effect and stability are not high.
2. The digital screen is a progressively scanned high-definition signal, while the analog screen is an interlaced ordinary video signal. For example, for a 7" analog screen digital photo frame, corresponding to NTSC television signals, each frame of image contains 525 scan lines, and after removing the reverse scan, 480 lines are effectively displayed. Because it is interlaced scan, each field contains only 240 scan lines. Because For system design reasons, only 234 of them are used when used as an analog screen. The philips digital photo frame uses a 7" digital screen, each frame is one field, and each field is 480 lines, which can perfectly reproduce the exquisite details of the image. 3. The digital screen is not only suitable for displaying dynamic pictures, but also perfect for displaying static pictures. Early analog screens felt jittery and flickering when they were used to display still pictures (digital photos). In fact, they were only suitable for displaying dynamic images such as TVs. However, with the advancement of technology, some analog screens can now display static images to a level close to that of digital screens. Consumers should pay attention to the quality of the different screens when purchasing products.

4. In terms of price, of course the analog screen is cheaper. But in terms of quality, the digital screen is naturally good.

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