Circuit board, preparation method thereof and display panel

A circuit board, lattice unit technology, applied in the directions of printed circuits, printed circuit components, electrical components, etc., can solve the problems of inconsistent differential line impedance of flexible circuit boards, affecting signal transmission, etc.

Active Publication Date: 2021-10-29
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present application provides a circuit board, its preparation method and a display panel, aiming to solve the problem that the flexible circuit board is prone to inconsistency in impedance between differential lines and affects signal transmission

Method used

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  • Circuit board, preparation method thereof and display panel
  • Circuit board, preparation method thereof and display panel
  • Circuit board, preparation method thereof and display panel

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Embodiment Construction

[0025] The implementation manner of the present application will be further described in detail below with reference to the drawings and embodiments. The detailed description and drawings of the following embodiments are used to illustrate the principles of the application, but not to limit the scope of the application, that is, the application is not limited to the described embodiments.

[0026] In the description of this application, it should be noted that, unless otherwise specified, the meaning of "plurality" is more than two; the terms "upper", "lower", "left", "right", "inner", " The orientation or positional relationship indicated by "outside" and so on are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to this app...

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Abstract

The invention relates to a circuit board, a preparation method thereof and a display panel. The circuit board comprises an insulating layer, a reference layer and a signal transmission layer, wherein the insulating layer comprises a first surface and a second surface which are opposite to each other; the reference layer is arranged on one side of the first surface, the reference layer comprises a latticed conductor formed by a plurality of first lattice units, and the first lattice units are symmetrical structure units with a first symmetry axis; the signal transmission layer is arranged on one side of the second surface, the signal transmission layer comprises a plurality of groups of differential line pairs, each group of differential line pairs comprises two differential lines parallel to the first symmetric axis, and the two differential lines are symmetric about the orthographic projection of part of the first symmetric axis on the signal transmission layer. The two differential lines of each group of differential line pairs of the circuit board are symmetrically distributed relative to the corresponding first symmetric axis, so the impedance consistency of the differential lines is ensured, the noise of the differential lines during signal uploading is reduced, and the signal transmission quality is further ensured.

Description

technical field [0001] The present application relates to the field of circuit technology, in particular to a circuit board, a manufacturing method thereof, and a display panel. Background technique [0002] Circuit boards are widely used in electronic equipment to realize the electrical connection of various electronic components in the circuit. The circuit board performs signal transmission through differential lines. [0003] However, the circuit board is prone to the problem that there is impedance inconsistency between differential lines, which affects signal transmission. Contents of the invention [0004] The present application provides a circuit board, its preparation method and a display panel, aiming to solve the problem that the flexible circuit board is prone to inconsistency in impedance between differential lines and affects signal transmission. [0005] On the one hand, the embodiment of the present application proposes a circuit board, including: an insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02
CPCH05K1/0245H05K1/025H05K1/0228
Inventor 陈珑唐佳茵谭绿水李露廖引戴超
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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