CN201130289Y - Backlight module and liquid crystal display device - Google Patents

Backlight module and liquid crystal display device Download PDF

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Publication number
CN201130289Y
CN201130289Y CNU2007201990184U CN200720199018U CN201130289Y CN 201130289 Y CN201130289 Y CN 201130289Y CN U2007201990184 U CNU2007201990184 U CN U2007201990184U CN 200720199018 U CN200720199018 U CN 200720199018U CN 201130289 Y CN201130289 Y CN 201130289Y
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CN
China
Prior art keywords
diameter
perforate
frame
elastic part
glue frame
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Expired - Lifetime
Application number
CNU2007201990184U
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Chinese (zh)
Inventor
管昊远
邵仲达
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.)
TCL China Star Optoelectronics Technology Co Ltd
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Coretronic Suzhou Corp
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Priority to CNU2007201990184U priority Critical patent/CN201130289Y/en
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Publication of CN201130289Y publication Critical patent/CN201130289Y/en
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Abstract

The utility model discloses a backlight module, which comprises a rubber frame, at least one fixing piece, a grounding elastic sheet and a light source. The rubber frame is provided with a plurality of frame walls and a bottom wall. The fixing member is protruded from the bottom wall and has a fastening portion and a stopping portion. The grounding elastic sheet is provided with a first grounding edge and a second grounding edge, the first grounding edge is attached to the outer side surface of a frame wall, the second grounding edge is attached to the bottom wall of the rubber frame, the second grounding edge is provided with a first opening and a second opening, the diameter of the first opening is larger than that of the second opening, the diameter of the first opening is not smaller than that of the blocking portion, the diameter of the blocking portion is larger than that of the second opening, and the diameter of the second opening is not smaller than that of the clamping portion. The utility model also discloses a liquid crystal display device who contains above-mentioned backlight unit.

Description

Module backlight and liquid crystal indicator
[technical field]
The utility model relates to a kind of module backlight and liquid crystal indicator, particularly relevant for a kind of module backlight and liquid crystal indicator with grounding elastic part of improvement.
[background technology]
At present, display panels (LCD Panel) has been widely used in electronic products such as monitor, mobile computer, digital camera and projector, and the demand that therefore drives module backlight continues to grow up.
Please refer to available liquid crystal display device 900 shown in Figure 1, it can be applicable on the mobile computer, this available liquid crystal display device 900 includes a module 9 backlight, a display panels 8 and a metal outer frame 7, module 9 wherein backlight includes a glue frame 90, and the reflector plate 91, a light guide plate 92 and the multilayer optical film 93 that are assembled in glue frame 90 tops successively.Display panels 8 is stacked and placed on the top of module 9 backlight, and by the cooperating of metal outer frame 7 and glue frame 90, thereby display panels 8 is fixed on the module 9 backlight.
The module backlight 9 of above-mentioned available liquid crystal display device 900 also includes one and is installed on L type grounding elastic part 94 and on the glue frame 90 and is positioned at circuit board 95 on glue frame 90 basal surfaces.The vertical edge 940 of grounding elastic part 94 is posted by on the outer surface 901 of glue frame 90, in order to contact with metal outer frame 7; The horizontal sides 941 of grounding elastic part 94 is posted by on the diapire 902 of glue frame 90, in order to contact with ground path or grounding assembly on the circuit board 95, noise on the circuit board 95 or static can be directed on the metal outer frame 7 by grounding elastic part 94, thereby can guarantee circuit board 95 operate as normal.
When assembling during grounding elastic part 94, at first need to match with draw-in groove 903 on being positioned at glue frame 90 diapires 902, so that grounding elastic part 94 is pre-aligned on glue frame 90 by the trip 942 on the horizontal sides 941 that is positioned at grounding elastic part 94; Then, circuit board 95 is assembled on the diapire 902 of glue frame 90 again, and it is locked on the glue frame 90 by at least one screw 96; At last, metal outer frame 7 is installed on the glue frame 90, and makes metal outer frame 7, grounding elastic part 94 and glue frame 90 all be fixed in together.But, because of thinner thickness and its material of grounding elastic part 94 softer, its trip 942 easy deformation, grounding elastic part 94 very easily gets loose, and lose pre-aligned function, therefore when populated circuit board 95 or metal outer frame 7, still must reinstall grounding elastic part 94, thereby cause operation various.Moreover, be improving locating effect, the bending angle of the trip 942 of grounding elastic part 94 must guarantee in the scopes less than 90 degree, so punching precision must improve, and causes cost to increase.
Because of the snap-in structure of above-mentioned existing grounding elastic part 94 and glue frame 90 has many defectives, and must be improved.For improving this defective, in process of production, have and utilize adhesive tape (not shown) grounding elastic part to be sticked on the outer surface of glue frame, in this way grounding elastic part is scheduled to be positioned on the glue frame.But, when needing tape stripping, can on grounding elastic part or glue frame, leave over the part cull, thereby influence product quality carrying out subsequent handling.
[summary of the invention]
Fundamental purpose of the present utility model is to provide a kind of module backlight, has a grounding elastic part, and it can be positioned on the glue frame reliably, and can prevent that grounding elastic part from getting loose.
Another purpose of the present utility model is to provide a kind of liquid crystal indicator, has a module backlight, and it is provided with a grounding elastic part, can be positioned reliably on the glue frame, and form reliable grounding path with metal outer frame.
Other purpose of the present utility model and advantage can be further understood from the disclosed technical characterictic of the utility model.
For achieving the above object or other purpose, the utility model adopts following technical scheme: a kind of module backlight, it includes a glue frame, at least one fixture, a grounding elastic part and at least one light source, and wherein the glue frame has a plurality of frame walls and a diapire, and each frame wall all has an outer surface.Light source is contained in the glue frame.At least one fixture is outwards protruded out by diapire, and has a holding section and a stop section, and the diameter of stop section is greater than the diameter of holding section.Grounding elastic part has one first a ground connection limit and second a ground connection limit that is connected with the first ground connection limit, the first ground connection limit is posted by on the outer surface of a frame wall, the second ground connection limit is posted by on the diapire of glue frame, the second ground connection limit is provided with one first perforate and second perforate that is connected with first perforate, wherein the diameter of first perforate is greater than the diameter of second perforate, and the diameter of first perforate is greater than the diameter of the stop section of fixture, the diameter of stop section is greater than the diameter of second perforate, and the diameter of second perforate is more than or equal to the diameter of the holding section of fixture.
For achieving the above object or other purpose, the utility model also adopts following technical scheme: a kind of liquid crystal indicator, it includes a module backlight, a display panels and a metal outer frame.Module backlight includes: a glue frame, at least one fixture, a grounding elastic part, a plurality of optical element and at least one light source, wherein the glue frame has a plurality of frame walls and a diapire, each frame wall all has an outer surface, and these frame walls and diapire surround into a receiving space.Light source is contained in the glue frame.A plurality of optical elements are assembled in the receiving space of glue frame.At least one fixture is convexly set on the diapire of glue frame, and has a holding section and a stop section, and the diameter of stop section is greater than the diameter of holding section.Grounding elastic part has one first a ground connection limit and second a ground connection limit that is connected with the first ground connection limit, the first ground connection limit is posted by on the outer surface of a frame wall, the second ground connection limit is posted by on the diapire of glue frame, the second ground connection limit is provided with one first perforate and second perforate that is connected with first perforate, wherein the diameter of first perforate is greater than the diameter of second perforate, and the diameter of first perforate is greater than the diameter of the stop section of fixture, the diameter of stop section is greater than the diameter of second perforate, and the diameter of second perforate is not less than the diameter of the holding section of fixture.Display panels is stacked and placed on the top of the optical element of module backlight.Metal outer frame is assembled on the glue frame of module backlight, and display panels is contained in it, metal outer frame has a plurality of sidewalls, has at least a sidewall to be assembled on the frame wall that is adjacent to grounding elastic part of glue frame, and contacts with the first ground connection limit of grounding elastic part.
Compared to prior art, the utility model module backlight and liquid crystal indicator have the grounding elastic part of improvement and the snap-in structure of glue frame, the glue frame is provided with a fixture that is the head of pestering, on grounding elastic part, then be provided with first perforate and second perforate that are interconnected, and the diameter of first perforate is greater than the diameter of second perforate, grounding elastic part can stably be positioned on the glue frame in advance, prevent to come off, and its grounding elastic part can keep reliably contacting with the ground path and the metal outer frame of circuit board, thereby noise on the circuit board or static can be directed on the metal outer frame, guarantee the product quality of module backlight and liquid crystal indicator in this way.
[description of drawings]
Fig. 1 is the cross-sectional view of available liquid crystal display device.
Fig. 2 is the wherein cross-sectional view of the liquid crystal indicator of an embodiment of the utility model.
Fig. 3 is that the utility model wherein the glue frame of the module backlight of an embodiment and the grounding elastic part position of all placing concerns synoptic diagram up.
Fig. 4 is that the utility model wherein the glue frame of the module backlight of an embodiment and the grounding elastic part position of all placing concerns synoptic diagram down.
Fig. 5 is wherein the glue frame of the module backlight of an embodiment and the part-structure enlarged diagram of grounding elastic part of the utility model.
[embodiment]
The direction term of being mentioned in following examples, for example: upper and lower, left and right, front or rear etc. only are the directions with reference to annexed drawings.Therefore, the direction term of use is to be used for illustrating not to be to be used for limiting the utility model.
Please refer to the wherein liquid crystal indicator 100 of an embodiment of the utility model shown in Figure 2, it includes a module 1 backlight, a display panels 2 and a metal outer frame 3, and module 1 wherein backlight includes a grounding elastic part 11 and the circuit board 16 on the frame wall 101 that a glue frame 10, at least one light source (not shown), a plurality of optical elements, that are assembled in the glue frame 10 are assembled in glue frame 10.Display panels 2 is stacked and placed on the top of the optical element of module 1 backlight.Metal outer frame 3 is assembled on the glue frame 10 of module 1 backlight, and display panels 2 is contained in it, by cooperating of metal outer frame 3 and glue frame 10, display panels 2 can be fixed on the module 1 backlight.In the present embodiment, from the inner bottom surface of glue frame 10, these optical elements are followed successively by a reflector plate 12, a light guide plate 13 and multilayer optical film 14.
Please be extremely shown in Figure 5 with reference to Fig. 2 simultaneously, the glue frame 10 of the module backlight 1 of present embodiment has a plurality of frame walls 101 and a diapire 103, and around forming a receiving space (not label).Circuit board 16 is installed on diapire 103 belows of glue frame 10.Each frame wall 101 all has an outer surface 102, outwards convexes with at least one fixture 15 on diapire 103, and this fixture 15 has a holding section 150 and a stop section 151.These optical elements are assembled in the receiving space of glue frame 10.In the present embodiment, as shown in Figures 2 and 3, two edges convex with a fixture 15 respectively relatively on the diapire 103 of glue frame 10, the holding section 150 of fixture 15 is for example all rounded with the cross section of stop section 151, and the diameter of stop section 151 is greater than the diameter of holding section 150, so fixture 15 is to be the mushroom head.But the utility model does not limit the cross sectional shape of holding section 150 and stop section 151.Fixture 15 and glue frame 10 are the structure of integral type.On the diapire 103 of glue frame 10, be adjacent to fixture 15 places and also be provided with a blind hole 104, and on the outer surface 102 of a frame wall 101 of the adjacent mount 15 of glue frame 10, also be provided with at least one blind hole 105 (seeing among Fig. 5).
Please be extremely shown in Figure 5 with reference to Fig. 2 simultaneously, the grounding elastic part 11 of the module backlight 1 of present embodiment has one first ground connection limit 110 and one second ground connection limit 111, and wherein the first ground connection limit 110 is posted by the outer surface 102 of frame wall 101; The second ground connection limit 111 is connected with this first ground connection limit 110, and is posted by the diapire 103 of frame wall 101.The second ground connection limit 111 is provided with one first perforate 112 and second perforate 113 that is connected with first perforate 112, wherein the cross sectional shape of the holding section 150 of the shape of first perforate 112 and fixture 15 is corresponding, and the diameter of first perforate 112 is greater than the diameter of the holding section 150 of the diameter of second perforate 113 and fixture 15, and the diameter of holding section 150 is greater than the diameter of second perforate 113.Again because the diameter of stop section 151 greater than the diameter of holding section 150, so in fact the diameter of first perforate 112 is greater than the diameter of stop section 151, the diameter of stop section 151 is greater than the diameter of second perforate 113, and the diameter of second perforate 113 is more than or equal to the diameter of holding section 150.After first perforate 112 was passed in the stop section 151 of fixture 15, holding section 150 was stretched in first perforate 112 and can translation be entered in second perforate 113.The holding section 150 of fixture 15 is sticked in second perforate 113, and stop section 151 blocks of fixture 15 are in the edge of second perforate 113.In addition, because first perforate 112 is corresponding to the blind hole 104 on the diapire 103 of glue frame 10,, thereby circuit board 16 and grounding elastic part 11 are locked on the diapire 103 of glue frame 10 so first perforate 112 can also supply a screw 4 pass.In the present embodiment, grounding elastic part 11 is to be the L type via bending and molding, the first ground connection limit 110 and the second ground connection limit 111 are perpendicular, its first ground connection limit 110 is a vertical edge, its second ground connection limit 111 is a horizontal sides, and be provided with one the 3rd perforate 114 in the first ground connection limit 110, the 3rd perforate 114 is corresponding to the blind hole 105 on the outer surface 102 of glue frame 10, use for another outside screw (not shown) and pass, thereby metal outer frame 3 and grounding elastic part 11 are locked on the outer surface 102 of glue frame 10, and reach metal outer frame 3 and contact with the tight of grounding elastic part 11, both prevented that grounding elastic part 11 from coming off, and also guaranteed the reliability of grounding path.In the present embodiment, module 1 backlight has two grounding elastic parts 11.
Please refer to shown in Figure 2, the metal outer frame 3 of present embodiment liquid crystal indicator 100 is assembled on the glue frame 10 of module 1 backlight, and display panels 2 is contained in it, metal outer frame 3 has a plurality of sidewalls 30, have at least a sidewall 30 to be assembled on the frame wall 101 of contiguous grounding elastic part 11 of glue frame 10, and contact with the first ground connection limit 110 of grounding elastic part 11.In the present embodiment, the two opposite side walls 30 of metal outer frame 3 contacts with two grounding elastic parts 11 respectively.
When assembling, when on the frame wall 101 that grounding elastic part 11 is assembled in glue frame 10, because of the diameter of first perforate 112 is bigger, the stop section 151 of fixture 15 can be passed first perforate 112 earlier, mobile then grounding elastic part 11 makes fixture 15 enter in second perforate 113.At this moment, the holding section 150 of fixture 15 is contained in second perforate 113, and its stop section 151 then is positioned at the edge of second perforate 113, so that the engaging positioning action to be provided.The grounding elastic part 11 of embodiment of the present utility model and the snap-in structure of glue frame 10 can be so that the assembling facilities of grounding elastic part 11, and can be positioned reliably on the glue frame 10, get loose to prevent grounding elastic part 11.
When entering subsequent processing, promptly when on the diapire 103 that circuit board 16 is assembled in glue frame 10, pass first perforate 112 of circuit board 16 and grounding elastic part 11 and circuit board 16 is locked on the glue frame 10 by screw 4, and make the second ground connection limit 111 of grounding elastic part 11 can with ground path on the circuit board 16 or grounding assembly is stable contact.
When being assembled in metal outer frame 3 on the glue frame 10, a wherein sidewall 30 of metal outer frame 3 is to contact with the first ground connection limit 110 of grounding elastic part 11, and pass the 3rd perforate 114 of metal outer frame 3 and grounding elastic part 11 and metal outer frame 3 is locked on the glue frame 10 by a screw (not shown), and make the first ground connection limit 110 of grounding elastic part 11 closely to contact with the sidewall 30 of metal outer frame 3.
The liquid crystal indicator 100 of embodiment of the present utility model and the grounding elastic part 11 of module backlight 1 thereof can stably be positioned on the glue frame 10 in advance, and its grounding elastic part 11 can keep reliably contacting with the ground path and the metal outer frame 3 of circuit board 16, thereby noise on the circuit board 16 or static can be directed on the metal outer frame 3, guarantee the product quality of module 1 backlight and liquid crystal indicator 100 in this way.

Claims (10)

1. module backlight includes: a glue frame, a grounding elastic part and at least one light source, and wherein this glue frame has a plurality of frame walls and a diapire, and each frame wall all has an outer surface; This grounding elastic part has one first a ground connection limit and second a ground connection limit that is connected with the first ground connection limit, and this first ground connection limit is posted by the wherein outer surface of a frame wall of this glue frame, and this second ground connection limit is posted by the diapire of this glue frame; And light source is contained in this glue frame; It is characterized in that: this module backlight also includes at least one fixture, and this fixture is convexly set on the diapire of this glue frame, and this fixture has a holding section and a stop section, and the diameter of stop section is greater than the diameter of holding section; The second ground connection limit of this grounding elastic part is provided with one first perforate and second perforate that is connected with this first perforate, wherein the diameter of this first perforate is greater than the diameter of this second perforate, and the diameter of this first perforate is greater than the diameter of the stop section of this fixture, the diameter of this stop section is greater than the diameter of this second perforate, and the diameter of this second perforate is more than or equal to the diameter of this holding section of this fixture.
2. module backlight as claimed in claim 1 is characterized in that: this fixture and this glue frame are the structure of integral type.
3. module backlight as claimed in claim 1 is characterized in that: this grounding elastic part is the L type, and the first ground connection limit is perpendicular to the second ground connection limit.
4. module backlight as claimed in claim 1 is characterized in that: in the diapire of this glue frame be provided with one be adjacent to this fixture and with the corresponding blind hole in position of first perforate of this grounding elastic part.
5. module backlight as claimed in claim 4 is characterized in that: this module backlight also comprises a circuit board and a screw, and this screw passes first perforate of circuit board, grounding elastic part and the blind hole of diapire.
6. liquid crystal indicator, include: a module backlight, a display panels and a metal outer frame, wherein this module backlight includes: a glue frame, a plurality of optical element, a grounding elastic part and at least one light source, this glue frame has a plurality of frame walls and a diapire, each frame wall all has an outer surface, and these frame walls and diapire are around a receiving space; Optical element is assembled in this receiving space; This grounding elastic part has one first a ground connection limit and second a ground connection limit that is connected with the first ground connection limit, and this first ground connection limit is posted by the wherein outer surface of a frame wall of this glue frame, and this second ground connection limit is posted by the diapire of this glue frame; And light source is contained in this glue frame; This display panels is stacked and placed on the top of these optical elements of this module backlight; And metal outer frame is assembled on the glue frame of this module backlight, and accommodate display panels, this metal outer frame has a plurality of sidewalls, has at least a sidewall to be assembled on the frame wall that is adjacent to grounding elastic part of this glue frame, and contacts with the first ground connection limit of this grounding elastic part; It is characterized in that: this module backlight also includes at least one fixture, and this fixture is convexly set on the diapire of this glue frame, and this fixture has a holding section and a stop section, and the diameter of stop section is greater than the diameter of holding section; The second ground connection limit of this grounding elastic part is provided with one first perforate and second perforate that is connected with this first perforate, wherein the diameter of this first perforate is greater than the diameter of this second perforate, and the diameter of this first perforate is greater than the diameter of the stop section of this fixture, the diameter of this stop section is greater than the diameter of this second perforate, and the diameter of this second perforate is more than or equal to the diameter of this holding section of this fixture.
7. liquid crystal indicator as claimed in claim 6 is characterized in that: this fixture and this glue frame are the structure of integral type.
8. liquid crystal indicator as claimed in claim 6 is characterized in that: this grounding elastic part is the L type, and the first ground connection limit is perpendicular to the second ground connection limit.
9. liquid crystal indicator as claimed in claim 6 is characterized in that: in the diapire of this glue frame be provided with one be adjacent to this fixture and with the corresponding blind hole in position of first perforate of this grounding elastic part.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: this module backlight also comprises a circuit board and a screw, and this screw passes first perforate of circuit board, grounding elastic part and the blind hole of diapire.
CNU2007201990184U 2007-12-07 2007-12-07 Backlight module and liquid crystal display device Expired - Lifetime CN201130289Y (en)

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Application Number Priority Date Filing Date Title
CNU2007201990184U CN201130289Y (en) 2007-12-07 2007-12-07 Backlight module and liquid crystal display device

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Application Number Priority Date Filing Date Title
CNU2007201990184U CN201130289Y (en) 2007-12-07 2007-12-07 Backlight module and liquid crystal display device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103235424A (en) * 2012-12-26 2013-08-07 友达光电股份有限公司 Combined rubber frame structure
CN106707580A (en) * 2016-12-08 2017-05-24 苏州长风航空电子有限公司 Novel shock-absorbing and anti-falling device for portable liquid crystal displays
CN109088966A (en) * 2018-09-29 2018-12-25 努比亚技术有限公司 A kind of ground structure and mobile terminal of screen backlight assembly
CN110297358A (en) * 2019-06-28 2019-10-01 厦门天马微电子有限公司 A kind of backlight module and curved face display panel
CN112020247A (en) * 2019-05-31 2020-12-01 苹果公司 Electronic device and method of assembling electronic device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103235424A (en) * 2012-12-26 2013-08-07 友达光电股份有限公司 Combined rubber frame structure
CN103235424B (en) * 2012-12-26 2016-05-18 友达光电股份有限公司 Combined rubber frame structure
CN106707580A (en) * 2016-12-08 2017-05-24 苏州长风航空电子有限公司 Novel shock-absorbing and anti-falling device for portable liquid crystal displays
CN109088966A (en) * 2018-09-29 2018-12-25 努比亚技术有限公司 A kind of ground structure and mobile terminal of screen backlight assembly
CN109088966B (en) * 2018-09-29 2020-11-03 东莞市钰晟电子科技有限公司 Grounding structure of screen backlight assembly and mobile terminal
CN112020247A (en) * 2019-05-31 2020-12-01 苹果公司 Electronic device and method of assembling electronic device
CN112020247B (en) * 2019-05-31 2021-11-12 苹果公司 Electronic device and method of assembling electronic device
US11415825B2 (en) 2019-05-31 2022-08-16 Apple Inc. Electronic device including a display assembly
CN110297358A (en) * 2019-06-28 2019-10-01 厦门天马微电子有限公司 A kind of backlight module and curved face display panel

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GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHENZHEN HUAXING PHOTOELECTRIC TECHNOLOGY CO., LTD

Free format text: FORMER OWNER: SUZHOU CANYU OPTICAL CO., LTD.

Effective date: 20120813

C41 Transfer of patent application or patent right or utility model
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Free format text: CORRECT: ADDRESS; FROM: 215006 SUZHOU, JIANGSU PROVINCE TO: 518132 SHENZHEN, GUANGDONG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20120813

Address after: 518132 9-2, Guangming Road, Guangming New District, Guangdong, Shenzhen

Patentee after: Shenzhen Huaxing Optoelectronic Technology Co., Ltd.

Address before: 215006, No. 3, No. 68, Star Road, Suzhou Industrial Park, Jiangsu Province

Patentee before: Suzhou Canyu Optical Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20081008