Circuit board

A technology of circuit boards and conductive layers, applied in circuit devices, printed circuits, printed circuits, etc., can solve problems affecting the operation of other components, and achieve the effect of improving radio frequency interference problems

Inactive Publication Date: 2019-01-18
HIMAX TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Display modules often generate radiation noise during operation, and this radiation noise may affect the operation of other components (such as communication modules)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The term "coupled (or connected)" as used throughout this specification (including the claims) may refer to any direct or indirect means of connection. For example, if the text describes that a first device is coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected to the second device through other devices or indirectly connected to the second device by a connecting means. In addition, where possible, elements / components / steps using the same reference numerals in the drawings and embodiments represent the same or similar parts. Elements / components / steps that use the same reference numerals or use the same terminology in different embodiments may refer to relative descriptions of each other.

[0029] figure 1 It is a three-dimensional schematic diagram of a layout structure of a circuit board 100 according to an embodiment of the present invention. A...

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PUM

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Abstract

A circuit board includes a first conductive layer, a second conductive layer, and a dielectric layer. On a vertical projection of a circuit board, a first portion of a signal transmission wire of thefirst conductive layer and a first conductor shield structure of the second conductive layer overlap each other, and a second portion of the signal transmission wire and a second conductor shield structure of the second conductive layer overlap each other. The line width of the first conductor shielding structure is different from the line width of the second conductor shielding structure, or theline distance of the first conductor shielding structure is different from the line distance of the second conductor shielding structure, or the line width and the line distance of the first conductorshielding structure are different from the line width and the line distance of the second conductor shielding structure.

Description

technical field [0001] The present invention relates to an electrical device, in particular to a circuit board. Background technique [0002] Communication devices, such as smartphones, have become common tools in life. Generally speaking, a display module and a communication module are configured inside a communication device. With the development trend of the increasingly smaller size of the communication device, the distance between the display module and the communication module is also decreasing. The display module often generates radiation noise during operation, and the radiation noise may affect the operation of other components (eg, the communication module). For example, the radiated noise generated by the display module may interfere with the radio reception capability of the communication module, that is, radio frequency interference (RFI) occurs. SUMMARY OF THE INVENTION [0003] The present invention provides a circuit board for improving the radio freque...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02
CPCH05K1/0218H05K2201/09672H05K2201/09681
Inventor 洪毅玮李瑞倪黄盈瑞黄巧绫蔡青霖
Owner HIMAX TECH LTD
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