Electronic design is also trying to reduce its size while continuously improving the performance of the whole machine. From mobile phones to smart small portable products, small is always the same pursuit. High-density integration (HDI) technology enables end-product design to be more compact while meeting higher standards of electronic performance and efficiency. HDI is currently widely used in mobile phones, digital (camera) cameras, MP3, MP4, notebook computers, automotive electronics and other digital products, among which mobile phones are the most widely used. HDI boards are generally manufactured using a build-up method. The more times the layers are stacked, the higher the technical grade of the board. Ordinary HDI boards are basically one-time laminate, high-order HDI uses two or more layers of technology, and adopts advanced PCB technology such as stacking holes, plating holes, and laser direct drilling. High-end HDI boards are mainly used in 3G mobile phones, advanced digital video cameras, IC carrier boards, etc. Pcb Hdi,Hdi Board,Hdi Pcb Design,Hdi Pcb Technology Chuangying Electronics Co.,Ltd , https://www.cwpcb.com
Hisense K7100 TV uses a very narrow spectrum of quantum dots and dynamic backlight control, the display effect is the color can add bright, black field effect is better, the light leakage is no longer obvious, while the color gamut is higher, the use of quantum dots very narrow spectral band The more precise color control and longer service life are good tools to provide better pictures. 
Hisense K7100 TV local broadcast measured 
Hisense K7100 TV static picture measured 4 
Hisense K7100 TV 4K Ultra HD source measured 2 
Hisense K7100 TV 4K Ultra HD source measured 4 
Hisense K7100 TV 4K Ultra HD source measured 5 
We took the lead in using the static 4K picture and the standard color chart to test the picture. We made a visual evaluation of the color gamut, gray scale display, etc. The K7100 was far better than the other cool colors for the blue resolution, but the sense of passage Still very strong, in the test clouds, villages, smoke pictures can be seen clearly.
In the analysis process of the 4k source, there was no situation of smearing, and at the same time, the color performance was extremely excellent, and the excessive color was also handled very well. In the same type of television, especially the oversight of the black field, instantaneous grayish appears, but the use of Dynamic adjustment of the backlight, Hisense K7100 does not appear such a situation.
Perfectly restores the playback of lossless music. Although it can't be required as a TV stereo, the processing of surround sound and low-medium high-frequency cannot be perfect, but it is a top grade in TV audio.
to sum up:
The last thing to say is that Hisense K7100's appearance has an impeccable texture, and at the beginning of the design, he thought of the placement of the audio, and in the case of the appearance of the winner can guarantee its perfect cost-performance, equipped with VIDAA on the content side. The 3 converged platforms are able to present richer programs and have better resolution in local playback capability. It is a very worthwhile ULED product.
Xiao Bian recommended: Hisense K7100 boot experience
Hisense K7100 TV Play 4K Quality Experience
Hisense K7100 TV audio and video new upgrade effect is more outstanding, 4K ultra high-definition picture effect? Let us take a closer look. The Hisense K7100 TV uses a front-end audio design, Hi-sound audio system can bring better results, using the DTS Premium Sound 5.1 solution, while using a multi-stage DRC, EQ processing technology, the performance of the sound details is more perfect , so we next use 4K images, Ultra HD source and lossless music for testing. Hisense K7100 TV decoding measured Hisense K7100 TV static picture measured Hisense K7100 TV static picture measuredTwo Hisense K7100 TV static picture measuredThree Hisense K7100 TV Static Picture Measurement 5 Hisense K7100 TV static picture measured 6 Hisense K7100 TV 4K Ultra HD source measured Hisense K7100 TV 4K Ultra HD source measured 3 Hisense K7100 TV 4K Ultra HD source 6