CN202837772U - Dustproof CMOS camera module - Google Patents

Dustproof CMOS camera module Download PDF

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Publication number
CN202837772U
CN202837772U CN201220300643.4U CN201220300643U CN202837772U CN 202837772 U CN202837772 U CN 202837772U CN 201220300643 U CN201220300643 U CN 201220300643U CN 202837772 U CN202837772 U CN 202837772U
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CN
China
Prior art keywords
camera module
sensitive chip
dustproof
imaging
sealant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201220300643.4U
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Chinese (zh)
Inventor
沈振权
舒伟平
曹后平
田野
童小琴
卢密
刘文姬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG LITE ARRAY CO., LTD.
Original Assignee
DONGGUAN GUANGZHEN DISPLAY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DONGGUAN GUANGZHEN DISPLAY Co Ltd filed Critical DONGGUAN GUANGZHEN DISPLAY Co Ltd
Priority to CN201220300643.4U priority Critical patent/CN202837772U/en
Application granted granted Critical
Publication of CN202837772U publication Critical patent/CN202837772U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a dustproof CMOS camera module, which comprises a lens, a light sensing chip and a planar printed circuit substrate, wherein the lower surface of the light sensing chip is arranged on the planar printed circuit substrate. The dustproof CMOS camera module further comprises a sealing layer and a light transmittance protection layer, wherein the sealing layer is arranged on the upper surface of the light sensing chip and partly covers the outer peripheral part of the upper surface, a hollow part of the sealing layer is correspondingly arranged over a light sensing region of the light sensing chip, and the light transmittance protection layer is arranged on the upper surface of the sealing layer and completely covers the sealing layer. The dustproof CMOS camera module has the advantages that an imaging protection region of which the perpendicular height is not less than 0.65 millimeters is formed between the position over the light sensing region of the light sensing chip and the upper surface of the light transmittance protection layer, micro dust can be prevented from entering the imaging protection region, and micro dust particles dropping on the upper surface of the light transmittance protection layer can be prevented from imaging, thus achieving the purpose of dust prevention.

Description

A kind of dustproof camera module
Technical field
The novel camera head technology that relates to of this use is specifically related to a kind of dustproof camera module.
Background technology
Along with the fast development of science and technology, camera is widely used in a plurality of fields, as notebook computer, mobile phone, medically endoscope, the product that industry is used on making of usefulness detect in real time, security monitoring etc.
Photographing module/module (CMOS Camera Module) is called for short CCM, is the core devices for various New Generation of Portable picture pick-up devices, compares with traditional camera system to have miniaturization, low-power consumption, low cost, the advantage of high image quality.
Traditional high pixel CSP technique photographing module is become by sensitive chip, lens assembly+optical filter, motor, motor base and plane substrate structure.The electric signal that sensitive chip produces is outwards exported by the tie point on chip bottom and the substrate, and optical filter is bonded on the lens assembly.Motor base is bonded on the substrate, and motor is bonded in the top of base.The camera module of above-mentioned this structure drops on the sensitive chip face at dust, distance from imaging surface is less, just energy imaging of actual dirty size (15um), existing this structure is widely used, yet the development along with high end pixel module, the client is more and more higher to the dirty requirement of image, and traditional high pixel CSP technique camera module optical filter as previously discussed is bonded on the lens assembly.Therefore dust drops on the chip glass surface, causes dust shorter from the distance of chip imaging surface, and actual dirty very little (15um) just can imaging, is easy to cause the impact on shooting effect.
The utility model content
The purpose of this utility model is for the problems referred to above, and a kind of dustproof camera module is provided, and by sealant and protective seam are set at sensitive chip, increase image-forming range, thereby reaches dustproof purpose.
The technical method that the utility model adopts for achieving the above object is:
A kind of dustproof camera module, it comprises camera lens, sensitive chip, plane electric circuit substrate, the lower surface of described sensitive chip is arranged on the plane electric circuit substrate, it also comprises a sealant and a light transmission protective layer, wherein said sealant hollow also possesses thickness, it is arranged on described sensitive chip upper surface and with the outer periphery partial coverage of this upper surface, its hollow space correspondence be arranged on the sensitive chip photosensitive region directly over; Described light transmission protective layer is the transparent material member that possesses thickness; it is arranged on the upper surface of described sealant; and the sealing layer covered fully; arrive directly over the described sensitive chip photosensitive region between the upper surface of light transmission protective layer; form the imaging protection zone that a vertical height is not less than 0.65mm; micronic dust can not be entered in the described imaging protection zone, and make the dust particale of the upper surface that drops on described light transmission protective layer can not imaging.
It also comprises a motor, a motor base; Described motor base is arranged on the described plane electric circuit substrate; Described motor inner hollow, it is arranged on the described motor base; Described camera lens is arranged in the hollow part of described motor; Described sensitive chip is arranged on that described motor base is inner, its photosensitive region is towards the hollow part of described motor.
The vertical height of imaging protection zone, i.e. vertical height after described sealant and the light transmission protective layer stack is 0.65 ~ 1mm.
Described sealant is a two-sided colloid layer, and its thickness is 0.20 ~ 0.30mm; On the described two-sided colloid layer, also be provided with an exhaust passage, be used for discharging the gas in the described imaging protection zone.
The groove of described exhaust passage for opening in two-sided colloid one side when the camera module sealant encapsulates, is to carry out under hot and humid, can discharge by this exhaust passage and be enclosed in the moisture in the space between sensitive chip and the protective seam.
Described protective seam is the clear glass infrared fileter, and its thickness is 0.45 ~ 0.70mm.
Infrared fileter in traditional camera module group lens is moved down, stick on the two-sided colloid, as protective seam; This protective seam not only plays dustproof effect, also plays the effect of optical filtering, when making imaging effect reach the best, has reduced again cost.
The beneficial effects of the utility model are: by sealant and protective seam are set at sensitive chip, increase image-forming range, and when making the dust that drops on protective seam greater than 30 μ m, could imaging, effectively solved the poor problem of dust-proof effect of existing camera module.
Description of drawings
Fig. 1 is the utility model one-piece construction schematic diagram;
Fig. 2 is the cut-open view of Fig. 1.
Fig. 3 is the blast structural representation of Fig. 1.
Among the figure: 1. camera lens 2. motors 3. motor bases 4. infrared fileters 5. two-sided colloid 6. sensitive chips 7. plane electric circuit substrates 8. connectors 9. exhaust passages
Embodiment
Embodiment: referring to Fig. 1 to Fig. 3, the present embodiment provides a kind of dustproof camera module, it comprises camera lens 1, sensitive chip 6, plane electric circuit substrate 7, the lower surface of described sensitive chip 6 is arranged on the plane electric circuit substrate 7, it also comprises a sealant and a light transmission protective layer, wherein said sealant hollow also possesses thickness, it is arranged on described sensitive chip 6 upper surfaces and with the outer periphery partial coverage of this upper surface, its hollow space correspondence be arranged on sensitive chip 6 photosensitive regions directly over; Described light transmission protective layer is the transparent material member that possesses thickness; it is arranged on the upper surface of described sealant; and the sealing layer covered fully; arrive directly over described sensitive chip 6 photosensitive regions between the upper surface of light transmission protective layer; form the imaging protection zone that a vertical height is not less than 0.65mm; micronic dust can not be entered in the described imaging protection zone, and make the dust particale of the upper surface that drops on described light transmission protective layer can not imaging.
It also comprises a motor 2, a motor base 3; Described motor base 3 is arranged on the described plane electric circuit substrate 7; Described motor 2 inner hollow, it is arranged on the described motor base 3; Described camera lens 1 is arranged in the hollow part of described motor 2; Described sensitive chip 6 is arranged on described motor base 3 inside, and its photosensitive region is towards the hollow part of described motor 2.
The vertical height of imaging protection zone, i.e. vertical height after described sealant and the light transmission protective layer stack is 0.65 ~ 1mm.
Described sealant is 5 layers in a two-sided colloid, and its thickness is 0.20 ~ 0.30mm; On 5 layers in the described two-sided colloid, also be provided with an exhaust passage 9, be used for discharging the gas in the described imaging protection zone.
The groove of described exhaust passage 9 for opening in two-sided colloid one side when the camera module sealant encapsulates, is to carry out under hot and humid, can discharge by this exhaust passage 9 and be enclosed in the moisture in the space between sensitive chip 6 and the protective seam.
Described protective seam is clear glass infrared fileter 4, and its thickness is 0.45 ~ 0.70mm.
Infrared fileter 4 in traditional camera module group lens is moved down, stick on the two-sided colloid 5, as protective seam; This protective seam not only plays dustproof effect, also plays the effect of optical filtering, when making imaging effect reach the best, has reduced again cost.
By the improvement of the above embodiments to camera module; at sensitive chip 6 sealant and protective seam are set; increase the image-forming range of on the protective seam object of dropping; when making the dust that drops on protective seam greater than 30 μ m, could imaging, and the photosensitive area of sensitive chip 6 carried out sealed package; so that inner and extraneous impurity; can not drop in the photosensitive area of sensitive chip, effectively solve the poor problem of dust-proof effect of existing camera module, reduce the dirty fraction defective of image.
But the above only is better possible embodiments of the present utility model, is not to limit to claim of the present utility model, therefore the equivalent structure that all utilization the utility model instructionss and accompanying drawing content are done changes, all is included in the protection domain of the present utility model.

Claims (5)

1. dustproof camera module, it comprises camera lens, sensitive chip, plane electric circuit substrate, the lower surface of described sensitive chip is arranged on the plane electric circuit substrate, it is characterized in that, it also comprises a sealant and a light transmission protective layer, wherein said sealant hollow also possesses thickness, and it is arranged on described sensitive chip upper surface and with the outer periphery partial coverage of this upper surface, its hollow space correspondence be arranged on the sensitive chip photosensitive region directly over; Described light transmission protective layer is the transparent material member that possesses thickness; it is arranged on the upper surface of described sealant; and the sealing layer covered fully; arrive directly over the described sensitive chip photosensitive region between the upper surface of light transmission protective layer; form the imaging protection zone that a vertical height is not less than 0.65mm; micronic dust can not be entered in the described imaging protection zone, and make the dust particale of the upper surface that drops on described light transmission protective layer can not imaging.
2. dustproof camera module according to claim 1 is characterized in that, it also comprises a motor, a motor base; Described motor base is arranged on the described plane electric circuit substrate; Described motor inner hollow, it is arranged on the described motor base; Described camera lens is arranged in the hollow part of described motor; Described sensitive chip is arranged on that described motor base is inner, its photosensitive region is towards the hollow part of described motor.
3. dustproof camera module according to claim 1 is characterized in that, the vertical height of imaging protection zone, i.e. and vertical height after described sealant and the light transmission protective layer stack is 0.65~1mm.
4. dustproof camera module according to claim 1 is characterized in that, described sealant is a two-sided colloid layer, and its thickness is 0.20~0.30mm; On the described two-sided colloid layer, also be provided with an exhaust passage, be used for discharging the gas in the described imaging protection zone.
5. dustproof camera module according to claim 1 is characterized in that, described protective seam is the clear glass infrared fileter, and its thickness is 0.45~0.70mm.
CN201220300643.4U 2012-06-25 2012-06-25 Dustproof CMOS camera module Withdrawn - After Issue CN202837772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220300643.4U CN202837772U (en) 2012-06-25 2012-06-25 Dustproof CMOS camera module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220300643.4U CN202837772U (en) 2012-06-25 2012-06-25 Dustproof CMOS camera module

Publications (1)

Publication Number Publication Date
CN202837772U true CN202837772U (en) 2013-03-27

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CN201220300643.4U Withdrawn - After Issue CN202837772U (en) 2012-06-25 2012-06-25 Dustproof CMOS camera module

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102707547A (en) * 2012-06-25 2012-10-03 东莞光阵显示器制品有限公司 Method for manufacturing dustproof photography module and dustproof photography module device
CN105120139A (en) * 2015-09-18 2015-12-02 信利光电股份有限公司 Camera shooting module and manufacturing method thereof
CN110233955A (en) * 2014-09-26 2019-09-13 宁波舜宇光电信息有限公司 A kind of image mould group and its sensitive chip encapsulating structure and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102707547A (en) * 2012-06-25 2012-10-03 东莞光阵显示器制品有限公司 Method for manufacturing dustproof photography module and dustproof photography module device
CN102707547B (en) * 2012-06-25 2015-02-04 东莞光阵显示器制品有限公司 Method for manufacturing dustproof photography module and dustproof photography module device
CN110233955A (en) * 2014-09-26 2019-09-13 宁波舜宇光电信息有限公司 A kind of image mould group and its sensitive chip encapsulating structure and method
CN105120139A (en) * 2015-09-18 2015-12-02 信利光电股份有限公司 Camera shooting module and manufacturing method thereof

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: GUANGDONG GUANGZHEN OPTOELECTRONICS TECHNOLOGY CO.

Free format text: FORMER NAME: DONGGUAN GUANGZHEN DISPLAY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 523000 Guangdong Province, Dongguan City Industrial Zone Qingxi Town Silver Star

Patentee after: GUANGDONG LITE ARRAY CO., LTD.

Address before: 523000 Guangdong Province, Dongguan City Industrial Zone Qingxi Town Silver Star

Patentee before: Dongguan Guangzhen Display Co., Ltd.

AV01 Patent right actively abandoned

Granted publication date: 20130327

Effective date of abandoning: 20150204

AV01 Patent right actively abandoned

Granted publication date: 20130327

Effective date of abandoning: 20150204

RGAV Abandon patent right to avoid regrant