A flexible circuit board structure and lcd module

Abstract

The invention discloses a flexible circuit board structure and an LCD module, the flexible circuit board structure includes a flexible circuit board, The flexible circuit board comprises a flexible board main body, a tracing layer arranged on the flexible board main body, a green oil layer arranged on the tracing layer, and at least one goldfinger arranged on the flexible board main body in directcontact with the green oil layer and electrically connected with the tracing layer. As that PI oil stop area is cancel, the bending softness of the FPC is increase, the poor light leakage phenomenonwhen the FPC is refracted is reduced, and the light leakage situation of the module is greatly improved.

Description

technical field [0001] The invention relates to the technical field of flexible circuit boards, in particular to a flexible circuit board structure and an LCD module. Background technique [0002] see figure 1 As shown, in the FPC (flexible circuit board) of the existing LCD module (LCM, liquid crystal module), there is a 0.5mm PI (poly Imide) as the oil retaining area 2, the existence of the PI oil retaining area increases the hardness of the FPC, and when the FPC is folded to the back, the stress concentration at both ends of the FPC is likely to cause light leakage from the LCM. [0003] see figure 2 As shown, the conductive glue 4 is attached to the back of the FPC of the LCD module, and the conductive glue 4 on the flexible board body 9 and the green oil layer 1 are arranged at intervals. The existing attachment position of the conductive glue 4 on the back of the FPC leads to the bending area of ​​the FPC If it is too hard, the arching of the root after the conduct...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a flexible circuit board structure and LCD module, thereby overcoming the existence of the PI oil retaining area of ​​the existing flexible circuit board and increasing the hardness of the FPC, when the FPC is folded back to the back , causing the stress concentration at both ends of the FPC to easily cause light leakage

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a flexible circuit board structure and LCD module, thereby overcoming the problem of excessive bending stress of the module FPC caused by the design of the conductive cloth of the existing flexible circuit board, which easily causes the problem of module abnormality

[0008] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a flexible circuit board structure of an LCD module and an LCD module, so as to overcome the attachment position of the conductive adhesive on the back of the existing flexible circuit board and make the bending stress of the FPC too large , it is easy to cause glass deformation, and the problem of LCD MURA phenomenon occurs when the LCD module is displayed

Images