CN101464570B - Liquid crystal display and backlight module unit thereof - Google Patents
Liquid crystal display and backlight module unit thereof Download PDFInfo
- Publication number
- CN101464570B CN101464570B CN2007103005454A CN200710300545A CN101464570B CN 101464570 B CN101464570 B CN 101464570B CN 2007103005454 A CN2007103005454 A CN 2007103005454A CN 200710300545 A CN200710300545 A CN 200710300545A CN 101464570 B CN101464570 B CN 101464570B
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- China
- Prior art keywords
- contact site
- circuit board
- access area
- location structure
- backboard
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Abstract
The invention discloses a liquid crystal display and a backlight module thereof. The liquid crystal display comprises a circuit board, a liquid crystal display panel, an adhesive frame, a front frame and a clamping part. The circuit board is provided with a ground-contact area; and the liquid crystal display panel is connected with the circuit board. The adhesive frame is provided with a first surface and a second surface relative to the first surface. The liquid crystal display panel is arranged on the first surface. The circuit board is arranged on the second surface. The front frame and the adhesive frame are used for clamping the liquid crystal display panel. The clamping part is fixedly arranged in the adhesive frame and comprises a contact part and a main body. The contact part comprises at least a buckling part; and the buckling part is suitable for generating elasticity, so that the contact part is pressed on and in contact with the circuit board. The circuit board is arranged between the contact part and the adhesive frame. The main body is connected with the contact part, is fixedly arranged on the adhesive frame, and is in contact with the front frame. Because the clamping part or a clamping structure is electrically connected with the front frame or a back board in the ground-contact area of the circuit board, and the circuit board is further grounded and can be grounded without screws and copper adhesive tapes, so as to reduce the noise.
Description
Technical field
The invention relates to a kind of display and light source module thereof, and particularly relevant for a kind of LCD and module backlight thereof.
Background technology
In science and technology now; (Liquid Crystal Display is LCD) because have the little and lightweight advantage of volume, so replace the comparatively huge cathode-ray tube of traditional volume (Cathode Ray Tube gradually for LCD; CRT), and then at large used by society.
LCD comprises module backlight, display panels (LCD panel), connects the circuit board and the metal front frame of display panels.Module backlight has a glue frame, and the glue frame can be assembled with the holding liquid crystal display panel with metal front frame.Circuit board also is assembled on the glue frame, and the access area of circuit board and metal front frame electrically connect so that circuit board ground connection.
Hold above-mentioned, circuit board normally by screws on the glue frame, and the access area of circuit board is through the electric connection of this screw and metal front frame.Yet this kind utilizes screw that the method for circuit board ground connection can be contacted display panels because screw is pressed easily, causes the image quality of LCD to reduce, even causes display panels impaired.
Another kind of method with circuit board ground connection is to utilize conductive tape to be attached between the access area and metal front frame of circuit board.Yet, this with conductive tape with the method for circuit board ground connection easily because of loose contact produces noise, cause the image quality of LCD to reduce equally.In addition, conductive tape also separates with the access area easily.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the present invention provides a kind of module backlight, so that circuit board ground connection.The present invention also provides a kind of LCD, and its module backlight can make circuit board ground connection.
The present invention provides a kind of LCD, and it comprises a circuit board, a display panels, a glue frame, a preceding frame and a holder.Circuit board has the access area, and display panels is connected with circuit board.The glue frame has the second surface of a first surface, a relative first surface, and wherein display panels is disposed at first surface, and circuit board arrangement is on second surface.Preceding frame and glue frame insert and put display panels.Holder is fixedly arranged on the glue frame, and comprises a contact site and a body.Contact site comprises at least one kink, and wherein circuit board arrangement is between contact site and glue frame, and contact site contacts with the access area.Body is connected with contact site, and body is fixedly arranged on the glue frame and with preceding frame and contacts, and wherein kink is suitable for producing an elastic force, contact site is pressed touch circuit board.
In the present invention, above-mentioned body has an assembly hole, and holder is fixed in the glue frame by assembly hole.
In the present invention, above-mentioned contact site and body are formed in one.
In the present invention, above-mentioned contact site is a U-shaped.One end of contact site is connected with body, and the other end of contact site contacts with the access area.
In the present invention, above-mentioned contact site has one first location structure, and the access area has one second location structure.First location structure can engage with fixing circuit board with second location structure each other.
In the present invention, the first above-mentioned location structure is a projection, and second location structure is a groove.
The present invention provides a kind of module backlight in addition, comprises a backboard, a circuit board and a light source.Backboard comprises a backboard body and a clamp structure, and wherein clamp structure is connected in backboard body.Clamp structure comprises a contact site and a junction, and wherein contact site comprises at least one kink, and connecting portion is connected between backboard body and the contact site.Circuit board has an access area, and circuit board is arranged between backboard body and the contact site.Contact site contacts with the access area.Light source is arranged at the side of backboard body with respect to circuit board, and wherein kink is suitable for producing an elastic force, contact site is pressed touch circuit board.
In the present invention, above-mentioned clamp structure and backboard are formed in one.
In the present invention, above-mentioned contact site is a U-shaped, and wherein an end of contact site is connected with connecting portion, and the other end of contact site contacts with the access area.
In the present invention, above-mentioned connecting portion is a V-arrangement, and wherein an end of connecting portion is connected with backboard body, and the other end of connecting portion is connected with contact site.
In the present invention, above-mentioned contact site has one first location structure, and first location structure contacts with the access area.
In the present invention, above-mentioned access area has one second location structure, and first location structure can engage with fixing circuit board with second location structure each other.
In the present invention, the first above-mentioned location structure is a projection, and second location structure is a groove.
In the present invention, above-mentioned circuit board and light source electrically connect.
The present invention provides a kind of LCD in addition, comprises a preceding frame, a circuit board, a display panels and a module backlight.Circuit board has access area module backlight and the assembling of preceding frame comprises a backboard and a light source with holding liquid crystal display panel module backlight.Backboard comprises a backboard body and a clamp structure, and wherein display panels and circuit board are positioned on two apparent surfaces of backboard body, and clamp structure is connected in backboard body.Clamp structure comprises a contact site and a junction.Contact site contacts with the access area of circuit board, and wherein contact site comprises at least one kink, and kink is suitable for producing an elastic force, contact site is pressed touch circuit board.Connecting portion is connected between backboard body and the contact site.Light source is arranged at the side of backboard body with respect to circuit board.
In the present invention, above-mentioned clamp structure and backboard body are one-body molded.
In the present invention, above-mentioned contact site is a U-shaped, and an end of contact site is connected with connecting portion, and the other end of contact site contacts with the access area.
In the present invention, above-mentioned connecting portion is a V-arrangement, and an end of connecting portion is connected with backboard body, and the other end of connecting portion is connected with contact site.
In the present invention, above-mentioned contact site has one first location structure, and first location structure contacts with the access area.
In the present invention, above-mentioned access area has one second location structure, and first location structure can engage with fixing circuit board with second location structure each other.
In the present invention, the first above-mentioned location structure is a projection, and second location structure is a groove.
In the present invention, above-mentioned circuit board and light source electrically connect.
In the present invention, above-mentioned circuit board and display panels electrically connect.
The present invention electrically connects with preceding frame or backboard by holder or clamp structure because of the access area of circuit board, and then makes circuit board ground connection.Compared to existing technologies, the present invention can be with circuit board ground connection under the condition of not using screw and copper adhesive tape, to reduce noise.
Description of drawings
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Figure 1A is the assembling synoptic diagram of the LCD of first embodiment of the invention.
Figure 1B is the schematic perspective view of the holder among Figure 1A.
Fig. 2 A is the schematic perspective view of the LCD of second embodiment of the invention.
Fig. 2 B is clamp structure and the schematic side view of circuit board among Fig. 2 A.
Fig. 2 C is another kind of clamp structure and the schematic side view of circuit board in the second embodiment of the invention.
The main element symbol description is following among the figure:
100,200: LCD
110: preceding frame
120: circuit board
122: the access area
130: display panels
140: the glue frame
142a: first surface
142b: second surface
142c: outer surface
142d, 154a: assembly hole
150: holder
152: contact site
154: body
160: screw
240: backboard
242: backboard body
244,244 ': clamp structure
244a, 244a ': contact site
244b, 244b ': connecting portion
F: elastic force
S: first location structure
R: second location structure
X, Y: kink
Embodiment
First embodiment:
Figure 1A is the assembling synoptic diagram of the LCD of first embodiment of the invention, and Figure 1B is the schematic perspective view of the holder among Figure 1A.Please consult Figure 1A and Figure 1B simultaneously, LCD 100 comprises before one frame 110, a circuit board 120, a display panels 130, a glue frame 140 and a holder 150.Preceding frame 110 for example is to adopt metal material made, and circuit board 120 has an access area 122.Display panels 130 is connected with circuit board 120, and circuit board 120 further electrically connects display panels 130, with the running of control display panels 130.
Hold above-mentionedly, body 154 also has an assembly hole 154a, and holder 150 is fixed in glue frame 140 by assembly hole 154a.For example, an outer surface 142c of glue frame 140 also has an assembly hole 142d, and assembly hole 154a is corresponding to assembly hole 142d.In the present embodiment, holder 150 can lock with glue frame 140 through the screw 160 of assembly hole 154a and 142d by one.Yet the common knowledge the knowledgeable under the present invention in the technical field also learns the method for other holders 150 and 140 assemblings of glue frame, so Figure 1A only illustrates, and non-limiting the present invention.
In the present embodiment, the body 154 of holder 150c can be tabular body (shown in Figure 1B), and contact site 152 can be one-body molded with body 154, so that the structure of holder 150 is comparatively firm.Secondly, the shape of contact site 152 can be a U-shaped, and an end of contact site 152 is connected with body 154, and the other end of contact site 152 then contacts with access area 122.In addition, the material of holder 150 can aluminium or other proper metal.
In addition, in the embodiment that other do not illustrate, contact site 152 can have one first location structure, and access area 122 can have one second location structure, and wherein first location structure can engage with fixing circuit board 120 with second location structure each other.In the present embodiment, first location structure can be a projection, and second location structure can be a groove.So, contact site 152 can more firmly be fixed on the access area 122.
Present embodiment adopts the access area 122 of the circuit board 120 of holder 150 clamping glue frames 140 and control display panels 130, so the noise of this kind LCD 100 is less.In addition, adopt screw possibly oppress display panels with respect to prior art, and use conductive tape to separate with circuit board easily, the holder 150 of present embodiment has higher fiduciary level and convenience in the use.
Second embodiment:
Fig. 2 A is the schematic perspective view of the LCD of second embodiment of the invention, and Fig. 2 B is clamp structure and the schematic side view of circuit board among Fig. 2 A.Please consult Fig. 2 A and Fig. 2 B simultaneously, the LCD 200 of present embodiment is similar with previous embodiment, and as first embodiment, and LCD 200 comprises a module backlight and a light source (not illustrating).
This module backlight and preceding frame (Fig. 2 A does not illustrate) assembling is with holding liquid crystal display panel (please with reference to Figure 1A); Module backlight comprises a backboard 240; It comprises a backboard body 242 and a clamp structure 244, and light source is arranged at the side of backboard body 242 with respect to circuit board 120.In the present embodiment, circuit board 120 can electrically connect display panels, as first embodiment, perhaps also can electrically connect light source.
The difference part of the present embodiment and first embodiment is: the holder of the foregoing description is an individual member, and the clamp structure 244 of present embodiment is the some of backboard 240.As first embodiment, the backboard 240 of present embodiment also is that the second surface 142b that is disposed at glue frame 140 goes up (please with reference to Figure 1A).In addition, for the purpose of simplifying the description, Fig. 2 A only shows the circuit board 120 and the backboard 240 of LCD 200.
More detailed, the material of backboard 240 can be a metal, and backboard 240 comprises a backboard body 242 and a clamp structure 244, and wherein clamp structure 244 is connected in backboard body 242, and clamp structure 244 can be one-body molded with backboard body 242.The display panels of LCD 200 (Fig. 2 A does not illustrate) is positioned on two apparent surfaces of backboard body 242 with circuit board 120.
In the present embodiment, the profile of the contact site 244a of clamp structure 244 can be a U-shaped, shown in Fig. 2 B.The end of contact site 244a is connected with connecting portion 244b, and the other end of contact site 244a then contacts with access area 122.So, circuit board 120 can be arranged between backboard body 242 and the contact site 244a.Profile that it should be noted that the contact site 244a of present embodiment is not defined as U-shaped, its detail as after.
Fig. 2 C is another kind of clamp structure and the schematic side view of circuit board in the second embodiment of the invention.See also Fig. 2 C, clamp structure 244 ' comprises a contact site 244a ' and a junction 244b ', and wherein connecting portion 244b's ' is shaped as V-arrangement.The end of connecting portion 244b ' is connected with backboard body 242, and the other end of connecting portion 244b ' is connected with contact site 244a '.
In the present embodiment, contact site 244a ' can have one first location structure S, and the first location structure S contacts so that circuit board 120 is fixedly arranged on the backboard body 242 with access area 122.For example, access area 122 can have one second location structure R, and the first location structure S can engage to fix circuit board 120 with the second location structure R each other.In the present embodiment, the first location structure S is a projection, and the second location structure R is a groove, and shown in Fig. 2 C, anti-is as the same.
Yet, it should be noted that the common knowledge the knowledgeable in the affiliated technical field of the present invention learns and can also the first location structure S and the second location structure R be designed to other structures with fixing circuit board 120.In addition, except contact site 244a ', the clamp structure 244 of Fig. 2 B can also be designed with the contact site 244a of the first location structure S.Therefore, contact site 244 shown in Fig. 2 B and Fig. 2 C and 244a ' are all and illustrate, and non-limiting the present invention.
In sum, the access area of circuit board is to be electrically connected to preceding frame by holder, or is electrically connected to backboard by clamp structure, thus circuit board can be under the condition of not using screw and copper adhesive tape ground connection.Know that compared to existing technology adopts screw and conductive tape, the present invention is less for the influence of LCD image quality.In addition, holder and clamp structure more can be with the circuit board clampings, and then fixing circuit board.
Though the present invention discloses as above with preferred embodiment; But it is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, all can do some and change and retouching, so protection scope of the present invention is being as the criterion with what claims defined.
Claims (17)
1. a LCD is characterized in that, comprising:
One circuit board has an access area;
One display panels is connected with said circuit board;
One glue frame has the second surface of the said relatively first surface of a first surface,, and wherein said display panels is disposed at said first surface, and said circuit board arrangement is on said second surface;
Frame before one inserts and puts said display panels with said glue frame;
One holder is fixedly arranged on said glue frame, and said holder comprises:
One contact site comprises at least one kink, and wherein said circuit board arrangement is between said contact site and said glue frame, and said contact site contacts wherein said bending with said access area
Portion is suitable for producing an elastic force, said contact site is pressed touch said circuit board; And
One body is connected with said contact site, and said body is fixedly arranged on the said glue frame and with said preceding frame and contacts.
2. LCD as claimed in claim 1 is characterized in that said body has an assembly hole, and said holder is fixed in said glue frame by said assembly hole.
3. LCD as claimed in claim 1 is characterized in that, said contact site is a U-shaped, and an end of said contact site is connected with said body, and the other end of said contact site contacts with said access area.
4. LCD as claimed in claim 1; It is characterized in that; Said contact site has one first location structure, and said access area has one second location structure, and said first location structure can engage with fixing said circuit board with said second location structure each other.
5. a module backlight is characterized in that, comprising:
One backboard comprises a backboard body and a clamp structure, and said clamp structure is connected in said backboard body, and said clamp structure comprises:
One contact site comprises at least one kink;
A junction is connected between said backboard body and the said contact site;
One circuit board has an access area, and said circuit board is arranged between said backboard body and the said contact site, and said contact site contacts with said access area, and wherein said kink is suitable for producing an elastic force, said contact site is pressed touch said circuit board; And
One light source is arranged at the side of said backboard body with respect to said circuit board.
6. module backlight as claimed in claim 5 is characterized in that, said clamp structure and said backboard are formed in one.
7. module backlight as claimed in claim 5 is characterized in that, said contact site is a U-shaped, and an end of said contact site is connected with said connecting portion, and the other end of said contact site contacts with said access area.
8. module backlight as claimed in claim 5 is characterized in that, said connecting portion is a V-arrangement, and an end of said connecting portion is connected with said backboard body, and the other end of said connecting portion is connected with said contact site.
9. module backlight as claimed in claim 5 is characterized in that, said contact site has one first location structure, and said first location structure contacts with said access area.
10. module backlight as claimed in claim 9 is characterized in that, said access area has one second location structure, and said first location structure can engage with fixing said circuit board with said second location structure each other.
11. module backlight as claimed in claim 7 is characterized in that, said circuit board and said light source electrically connect.
12. a LCD is characterized in that, comprising:
Frame before one;
One circuit board has an access area;
One display panels;
One module backlight, with said preceding frame assembling, with the said display panels of clamping, said module backlight comprises:
One backboard comprises a backboard body and a clamp structure, and wherein said display panels and said circuit board are positioned on two apparent surfaces of said backboard body, and said clamp structure is connected in said backboard body, and said clamp structure comprises:
One contact site contacts with the said access area of said circuit board, and said contact site comprises at least one kink, and said kink is suitable for producing an elastic force, said contact site is pressed touch said circuit board;
A junction is connected between said backboard body and the said contact site; And
One light source is arranged at the side of said backboard body with respect to said circuit board.
13. LCD as claimed in claim 12 is characterized in that, said clamp structure and said backboard body are one-body molded.
14. LCD as claimed in claim 12 is characterized in that, said contact site is a U-shaped, and an end of said contact site is connected with said connecting portion, and the other end of said contact site contacts with said access area.
15. LCD as claimed in claim 12 is characterized in that, said connecting portion is a V-arrangement, and an end of said connecting portion is connected with said backboard body, and the other end of said connecting portion is connected with said contact site.
16. LCD as claimed in claim 15 is characterized in that, said contact site has one first location structure, and said first location structure contacts with said access area.
17. LCD as claimed in claim 16 is characterized in that, said access area has one second location structure, and said first location structure can engage with fixing said circuit board with said second location structure each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103005454A CN101464570B (en) | 2007-12-19 | 2007-12-19 | Liquid crystal display and backlight module unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103005454A CN101464570B (en) | 2007-12-19 | 2007-12-19 | Liquid crystal display and backlight module unit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101464570A CN101464570A (en) | 2009-06-24 |
| CN101464570B true CN101464570B (en) | 2012-05-02 |
Family
ID=40805233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103005454A Expired - Fee Related CN101464570B (en) | 2007-12-19 | 2007-12-19 | Liquid crystal display and backlight module unit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101464570B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598861B (en) * | 2009-07-30 | 2011-03-30 | 友达光电股份有限公司 | Liquid crystal display and frame thereof |
| US8724044B2 (en) | 2011-11-01 | 2014-05-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display based on insulation backplane |
| CN102385180A (en) * | 2011-11-01 | 2012-03-21 | 深圳市华星光电技术有限公司 | Liquid crystal display device based on insulated back plate |
| CN102401333B (en) * | 2011-11-18 | 2013-07-10 | 深圳市华星光电技术有限公司 | Back frame and backlight system |
| CN102662260A (en) * | 2012-04-27 | 2012-09-12 | 深圳市华星光电技术有限公司 | Liquid crystal display and back plate component thereof |
| CN110618562A (en) * | 2019-10-31 | 2019-12-27 | 京东方科技集团股份有限公司 | Backlight module, assembling method thereof and display device |
| US11829032B2 (en) | 2019-10-31 | 2023-11-28 | K-Tronics (Suzhou) Technology Co., Ltd. | Backlight module including fixing member, display module and assembling method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0817325A1 (en) * | 1996-07-01 | 1998-01-07 | Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte | Contact device for electrical connection of a circuit board to a liquid crystal display support |
| CN1818757A (en) * | 2006-03-08 | 2006-08-16 | 友达光电股份有限公司 | Liquid-crystal display module shell and liquid-crystal display device therewith |
-
2007
- 2007-12-19 CN CN2007103005454A patent/CN101464570B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0817325A1 (en) * | 1996-07-01 | 1998-01-07 | Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte | Contact device for electrical connection of a circuit board to a liquid crystal display support |
| CN1818757A (en) * | 2006-03-08 | 2006-08-16 | 友达光电股份有限公司 | Liquid-crystal display module shell and liquid-crystal display device therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101464570A (en) | 2009-06-24 |
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Effective date of registration: 20120301 Address after: Taiwan, China 350 Hsinchu science and Technology Industrial Park, Miaoli County, Southern Town, science Road, No. 160 Applicant after: Chimei Optoelectronics Co., Ltd. Address before: China Taiwan 74144 Tainan County Tainan Science Industrial Park odd Road No. 1 Applicant before: Chimei Optoelectronics Co., Ltd. |
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Granted publication date: 20120502 Termination date: 20171219 |
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