Display module and composite flexible circuit board thereof

Abstract

The invention relates to a display module and a composite flexible circuit board thereof. The composite flexible circuit board is located on the back of the display module and is used for being connected to the display module and an external control circuit. The composite flexible circuit board comprises a flexible circuit board, the flexible circuit board comprises a body circuit layer, and the composite flexible circuit board further comprises a pressure sensing plate, wherein the pressure sensing plate and the body circuit are arranged in layers, and the pressure sensing plate comprises a sensing unit for sensing pressure. The composite flexible circuit board comprises a flexible circuit board and a pressure sensing board, so that the composite flexible circuit board not only has the signal transmission function of a traditional flexible circuit board, but also has the function of sensing pressure. The pressure sensing function is arranged in the composite flexible circuit board, sothat the display module has the pressure sensing function in the area attached to the composite flexible circuit board. Compared with the integrated type, the structure process is simple.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a display module and a composite flexible circuit board thereof. Background technique [0002] In the field of display devices, integrating pressure sensors on display screens has become a research hotspot. One of the research directions is to integrate pressure sensors on the entire screen. However, the process of integrating pressure sensors in the entire screen is relatively complicated and the cost is relatively high. With the widespread use of 3D curved screens, it is more complicated to integrate pressure sensors in the entire screen, and it is difficult to form pressure sensing on the side; another research direction is to integrate pressure sensors in parts of the screen, traditional local areas or fixed points Pressure sensing has been widely used. For example, the fingerprint recognition area of ​​Apple 7 (iPhone 7) is integrated with a pressure sensing sensor, ...

AI Technical Summary

Problems solved by technology

[0002] In the field of display devices, integrating pressure sensors on display screens has become a research hotspot. One of the research directions is to integrate pressure sensors on the entire screen. However, the process of integrating pressure sensors in the entire screen is relatively complicated and the cost is relatively high. With the widespread use of 3D curved screens, it is more complicated to integrate pressure sensors in the entire screen, and it is difficult to form pressure sensing on the side; another research direction is to integrate pressure sensors in parts of the screen, traditional local areas or fixed points Pressure sensing has been widely used. For example, the fingerprint recognition area of ​​Apple 7 (iPhone 7) is integrated with a pressure sensing sensor, and the fingerprint recognition and pressure sensing are integrated together, resulting in a more complicated structure and higher cost; There is a pressure sensor integrated in the internal area, but the pressure sensor of the Samsung S8 is a capacitive pressure sensor, which is prone to failure

Images