Image pickup device and camera module

Abstract

The surface of the image pickup device 21 is covered by a transparent conductive member 26 that is made of, for example, a transparent conductive past resin and that is electrically connected to a ground potential GND. By having this arrangement, it is possible to electromagnetically shield the image pickup device 30 itself. The transparent conductive member 26 has one or more openings in the parts that correspond to the conductive unit of the signal wiring portion (the electrodes 23; A to D, F, and G, and the wiring patterns 25 that are connected thereto), out of the electrodes 23 and the wiring patterns 25 provided on the front surface side of the image pickup device body unit 21.

Description

technical field [0001] The present invention relates to an image pickup device such as a CMOS image sensor and a CCD image sensor used as an image pickup unit in a video camera, a digital still camera, a mobile phone with a camera, a portable information terminal device with a camera, etc., It also relates to a camera module comprising such an image pickup device. Background technique [0002] A conventional camera module of this type will be described below with reference to the accompanying drawings. [0003] 9A is a sectional view of main parts showing an example structure of a conventional camera module. Figure 9B is a bottom view of the camera module shown in FIG. 9A. Figure 9A is Figure 9B Sectional view of the line A-A' in. [0004] Figure 9A and Figure 9B As shown, a camera module 10 includes a lens cap 1, a lens 2, a lens barrel 3 for accommodating the lens 2, an IR (infrared ray) cut filter 4, a camera case 5 for accommodating these components, an image pickup...

AI Technical Summary

Problems solved by technology

[0013] In the case where the conventional camera module 10 configured as described above is applied to a mobile phone having a camera, when the camera module 10 receives electric signals from the main body of the mobile phone other than the camera part and electric devices other than the mobile phone , problems can arise such as reduced image quality of captured images and / or malfunction of the camera itself

[0017] (1) Electrical signals from inside the mobile phone and from outside the mobile phone pass through the camera module 10 and are added as noise to the electrical signal of the image pickup device 6, and thus the image quality of the captured image is degraded

In particular, in the case of a mobile phone, when a signal from a high frequency (RF) unit passes through the camera module 10, the image quality tends to degrade easily.

The reason for this is that mobile phones operate at a high frequency and have a large output power

[0018] (2) The signal generated in the image pickup device 6 becomes noise and exerts a bad influence on the signal of the mobile phone body other than the camera module 10

[0019] (3) A signal generated in the image pickup device 6 becomes noise and causes malfunction of electric devices existing outside the mobile phone

[0020] The problem (1) is generated when the camera module 10 receives noise from the body part of the mobile phone other than the camera module 10 and noise from electrical devices other than the mobile phone

Problems (2) and (3) arise when noise from the camera module 10 causes malfunctions in other electronic devices

[0021] In order to prevent these problems, Patent Document 1 proposes to protect the camera module from electromagnetic radiation by making the camera case conductive; but according to this shielding method, only the camera case of the camera module is shielded, and the optical opening unit such as the lens unit is shielded. is not blocked

Therefore, the captured image may be badly affected by the noise going in and out through the lens unit

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