Circuit board and camera module thereof

A camera module and circuit board technology, which is applied in the field of optical photography, can solve the problems of camera module light leakage, affecting the imaging quality of the camera module, and high light transmittance of the circuit board, so as to improve image quality, avoid light leakage, and reduce light transmission rate effect

Inactive Publication Date: 2016-07-27
TRULY OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the light transmittance of the circuit board of the existing camera module is high. When there is light, the light easily passes through the circuit board and enters the camera module, causing light leakage from the camera module and affecting the imaging quality of the camera module.

Method used

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  • Circuit board and camera module thereof
  • Circuit board and camera module thereof

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Experimental program
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Effect test

Embodiment 1

[0031] This embodiment provides a circuit board, especially a circuit board for a camera module, please refer to figure 2 The schematic structural diagram of the circuit board of the present embodiment shown includes:

[0032] Substrate 21, a patterned conductive layer 22 positioned on the substrate; and, positioned on the conductive layer, a protective film 23 covering the substrate, wherein the protective film 23 is a light-shielding protective film, and the light-shielding protective film is used to block light from passing through the circuit board.

[0033] Generally, the circuit board used as a camera module is mostly a double-layer structure or a four-layer structure. This embodiment provides a double-layer structure circuit board, such as figure 2 As shown, it includes a substrate 21 , a patterned conductive layer 22 located on both sides of the substrate, and a protective film 23 covering both sides of the substrate.

[0034] Wherein, the material of the substrate...

Embodiment 2

[0045] This embodiment provides a camera module, the camera module includes: a base, a lens barrel, the circuit board described in the above embodiment, and a photosensitive chip located on the circuit board; wherein, the lens barrel and The circuit boards are respectively connected to the bases.

[0046] In this embodiment, in order to further increase the light-shielding effect and avoid light leakage of the camera module, a light-shielding film is provided at the connection between the circuit board of the camera module and the base, and in this embodiment, the light-shielding film is black.

[0047] Specifically, the connection between the circuit board and the base can be coated with black glue to form a black film, so as to obtain a better light-shielding effect.

[0048] In addition, in order to avoid light leakage from the camera module and affect the image quality, you can choose to assemble the camera module as far as possible from the place where light can be irradi...

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Abstract

The invention provides a circuit board, comprising a substrate, a graphic conductive layer on the substrate, and a protective film located on the conductive layer and covering the substrate, wherein the protective film is a shading protective film, and the shading protective film is used for blocking light from passing through the circuit board. According to the circuit board and a camera module thereof, the protective film is a shading protective film which can block light from passing through the circuit board, thereby reducing the light transmittance of the circuit board, avoiding light leak of the camera module and improving the imaging quality of the camera module.

Description

technical field [0001] The present application relates to the technical field of optical imaging, in particular to a circuit board and an imaging module thereof. Background technique [0002] With the continuous development of science and technology, more and more imaging devices are applied to people's work and daily life, which brings great convenience to people's work and daily life. [0003] In recent years, with the development of smart phones, the camera function of mobile phones has been developed unprecedentedly. At present, the optical lens of smart phones has reached 13 million pixels, which further improves the camera quality of smart phones, and the camera effect is getting better and better. [0004] However, the circuit board of the existing camera module has a high light transmittance. When light is irradiated, the light easily passes through the circuit board and enters the interior of the camera module, causing light leakage from the camera module and affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225
CPCH04N23/54H04N23/55H04N23/57
Inventor 曹斌严小超王军伟
Owner TRULY OPTO ELECTRONICS
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