CN101290433B - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN101290433B CN101290433B CN2008101305016A CN200810130501A CN101290433B CN 101290433 B CN101290433 B CN 101290433B CN 2008101305016 A CN2008101305016 A CN 2008101305016A CN 200810130501 A CN200810130501 A CN 200810130501A CN 101290433 B CN101290433 B CN 101290433B
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- body frame
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Abstract
The invention provides a back light module, comprising a back frame, a plastic frame and a backlight, wherein, the back frame has a bottom bearing part and a lateral wall extending upwards from the edge of the bottom bearing part to define a receiving space; the lateral wall is provided with a blow hole and a reflexed structure, wherein, the reflexed structure is bent downwards into the receiving space to cover a part of the blow hole; the plastic frame wraps partial area of the back frame; moreover, a part of the plastic frame extends from the receiving space to the blow hole in order to wrap the reflexed structure; the backlight is arranged on the back frame and the plastic frame and is positioned inside the receiving space. The invention adopts the blow hole of the back frame and the reflexed structure on the back frame which are matched with each other, thereby improving the associative property between the back frame and the plastic frame and ensuring that the plastic frame is not easy to fall off from the back frame.
Description
Technical field
The present invention relates to a kind of light source, and be particularly related to a kind of backlight module (backlight module).
Background technology
Figure 1A illustrates the synoptic diagram of known a kind of LCD MODULE, and Figure 1B be according among Figure 1A along the sectional view of L1-L1 ' profile line.Please be simultaneously with reference to Figure 1A and Figure 1B, and LCD MODULE (Liquid Crystal Display Module, LCM) 180 comprise a display panels 170 and a backlight module 100, wherein display panels 170 is configured in the backlight module 100.Backlight module 100 comprises a back of the body frame (back bezel) 130, one glue frame (frame) 140, a backlight 150 and a preceding frame (front bezel) 160.Back of the body frame 130 has a bottom supporting part 132 and a side wall 134.Bottom supporting part 132 defines a spatial accommodation C ' with side wall 134, and this spatial accommodation C ' is in order to backlight 150 and display panels 170 to be set.Backlight 150 is configured on back of the body frame 130 and the glue frame 140 with display panels 170, wherein backlight 150 is positioned at the below of display panels 170 for the required light source of display panels (only need occupy certain volume in order to signal backlight 150 herein, the detailed structure in the diagram backlight 150 of Therefore, omited).Preceding frame 160 fits together with back of the body frame 130, and backlight 150 and display panels 170 are arranged between preceding frame 160 and the back of the body frame 130.
In the prior art, glue frame 140 can utilize the mould injection to go out technology manufacturing.In detail, general mould injection goes out technology and will earlier back of the body frame 130 be fixed in the mould, then by the ejection formation process plastics is injected in the mould, to form glue frame 140 on the back of the body frame 130 in mould.In general, for fear of the phenomenon of separating between the back of the body frame 130 and the glue frame 140, side wall 134 has reflexed structure 134R (shown in Figure 1B) usually, to improve the bond strength of carrying on the back between frame 130 and the glue frame 140.Yet reflexed structure 134R only can improve back of the body frame 130 and the bond strength of glue frame 140 on the z direction, and clearly, reflexed structure 134R can't improve back of the body frame 130 and the bond strength of glue frame 140 on x direction and y direction.Therefore, the back of the body frame 130 of backlight module 100 still is apparent not enough with the integral coherence of glue frame 140.
Shown in Figure 1B, general back of the body frame 130 is harder rigidity material, because the reflexed structure 134R of back of the body frame 130 has dome surface S ' usually, and the dome of reflexed structure 134R surface S ' must contact with mould, therefore mould is easy to by harder dome surface S ' the institute scratch of material, and then causes shorten die life.
Summary of the invention
The present invention proposes a kind of backlight module, has good binding between its back of the body frame and the glue frame.
The present invention proposes a kind of backlight module, and this backlight module comprises the back of the body frame, a glue frame and a backlight.Back of the body frame has a bottom supporting part and a side wall that up extends from the edge of bottom supporting part, to define a spatial accommodation.Side wall has a holes and a reflexed structure, wherein the reflexed structure down bending to spatial accommodation, to cover the part holes.The glue frame coats the subregion of back of the body frame, and part glue frame extends to the holes to coat the reflexed structure from spatial accommodation.Backlight is configured on back of the body frame and the glue frame, and is positioned at spatial accommodation.
In one embodiment of this invention, back of the body frame is a metal back frame.
In one embodiment of this invention, the reflexed structure has a dome surface, and the dome surface is coated by the glue frame.
In one embodiment of this invention, the volume of the part glue frame in the holes equates in fact with the volume of holes.
In one embodiment of this invention, the part glue frame that is arranged in holes is subjected to the interference of reflexed structure, so that strengthen glue frame and the bond strength of carrying on the back frame.
In one embodiment of this invention, backlight is a lateral incident type backlight source or a direct-light-type backlight.
In one embodiment of this invention, frame before backlight module also comprises, wherein preceding frame fits together with back of the body frame.In one embodiment, preceding frame is a metal front frame.
Because the present invention utilizes the holes collocation of back of the body frame to go up the reflexed structure of back of the body frame, so the present invention helps to improve the associativity between back of the body frame and the glue frame, makes the glue frame be not easy to from carrying on the back frame come off (peeling off).
For above-mentioned feature and advantage of the present invention can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs. is described in detail below.
Description of drawings
Figure 1A illustrates the synoptic diagram of known a kind of LCD MODULE.
Figure 1B be according among Figure 1A along the cut-open view of L1-L1 ' profile line.
Fig. 2 A illustrates the synoptic diagram of the LCD MODULE of one embodiment of the invention.
Fig. 2 B be according among Fig. 2 A along the partial schematic sectional view of L2-L2 ' profile line.
Fig. 2 C illustrates the back of the body frame of one embodiment of the invention and the partial schematic diagram of glue frame
Fig. 3 illustrates the synoptic diagram of the backlight module of another embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100: backlight module 130: back of the body frame
132: bottom supporting part 134: side wall
134R: reflexed structure 140: glue frame
150: backlight 160: preceding frame
170: display panels 180: LCD MODULE
C ': spatial accommodation L1-L1 ': profile line
S ': dome surface 200: backlight module
300: back of the body frame 320: bottom supporting part
340: side wall 342: holes
344: reflexed structure 400: the glue frame
500: backlight 600: preceding frame
700: display panels 800: LCD MODULE
C: spatial accommodation d: distance
E1: edge E2: lower edge
H: height L2-L2 ': profile line
S: dome surface S1, S2: surface
W1, W2: width
Embodiment
Generally speaking, backlight module can be applicable in the LCD MODULE.Therefore, will with the LCD MODULE backlight module that example illustrates present embodiment below.Fig. 2 A illustrates the synoptic diagram of the LCD MODULE of one embodiment of the invention, and Fig. 2 B be according among Fig. 2 A along the partial schematic sectional view of L2-L2 ' profile line.Please be simultaneously with reference to Fig. 2 A and Fig. 2 B, the backlight module 200 of present embodiment comprises the back of the body frame 300, a glue frame 400 and a backlight 500.Back of the body frame 300 has a bottom supporting part 320 and a side wall 340 that up extends from the edge of bottom supporting part 320, to define a spatial accommodation C.In addition, side wall 340 has a holes 342 and a reflexed structure 344, and glue frame 400 coats the subregion of back of the body frame 300.Backlight 500 is configured on back of the body frame 300 and the glue frame 400, and is positioned at spatial accommodation C, and wherein backlight 500 can be by lateral incident type backlight sources that member constituted such as light source, light guide plate, blooming pieces.Certainly, backlight 500 also can be the light source of a direct-light-type backlight or other pattern, and the present invention does not limit the pattern of backlight 500.In addition, the backlight 500 shown in Fig. 2 A only need occupy certain volume, the diagram of its detailed structure of Therefore, omited in order to signal backlight 500.
Shown in Fig. 2 B, reflexed structure 344 down bending to spatial accommodation C, to cover part holes 342.In the present embodiment, the height of holes 342 is h, and the lower edge E2 of the holes 342 of the edge E1 of reflexed structure 344 and back of the body frame 300 is at a distance of d.Wherein, is principle apart from the definite of d can allow side wall 340 form constructive interference with glue frame 400, therefore the material characteristic (as the hardness of this material) of determining fixed and glue frame 400 apart from d has relation to a certain degree, to guarantee the intensity of constructive interference between side wall 340 and the glue frame 400.Yet the manufacturing difficulty of glue frame 400 also is one of emphasis of considering.In detail, when making glue frame 400 by the ejection formation process, it is also relevant with distance d whether this material flows to when liquid state in the holes 342 easily.For instance, when the viscosity of liquid material is higher, then needs to be provided with and bigger be beneficial to form glue frame 400 apart from d and make between back of the body frame 300 and the glue frame 400 and do not have assembly clearance.In other words, the height h with depend on multiple factor apart from d.Therefore, the deviser need look product performance and relevant principle of design (design rule) is adjusted height h and apart from d.
More specifically, part glue frame 400 extends to the holes 342 to coat reflexed structure 344 from spatial accommodation C, equates in fact with the volume of holes 342 so that be arranged in the volume of the part glue frame 400 of holes 342.That is to say that in the present embodiment, the surperficial S1 of the back of the body frame 300 of holes 342 and the surperficial S2 that is arranged in the part glue frame 400 of holes 342 fit in fact.Applying in fact herein is not must fit tightly fully in order to defining surface S1 and surperficial S2, and meaning promptly allows the generation of small part because of the not fit area that technological factor or other factors caused between surperficial S1 and the surperficial S2.
Fig. 2 C illustrates the back of the body frame of one embodiment of the invention and the partial schematic diagram of glue frame, but back of the body frame and the back of the body frame among the glue frame pie graph 2B and the constructive interference of glue frame among Fig. 2 C wherein.Please be simultaneously with reference to Fig. 2 B and Fig. 2 C, the part glue frame 400 of present embodiment extends to the holes 342 to coat reflexed structure 344 from spatial accommodation C, makes the part glue frame 400 that is arranged in holes 342 can be subjected to the interference of reflexed structure 344.On the x direction with the z direction on, can produce constructive interference between part glue frame 400 in the holes 342 and the reflexed structure 344.Yet this constructive interference can make the glue frame 400 and the bond strength of back of the body frame 300 more strengthen.Say that further when backlight module 200 was subjected to impacting, the part glue frame 400 in the holes 342 can avoid glue frame 400 and back of the body frame 300 to reach separated from one another on the z direction in the x direction with the constructive interference that reflexed structure 344 is constituted.
Hold above-mentionedly, on the interface (interface) between the back of the body frame 300 and its holes 342, the glue frame 400 in the holes 342 producing constructive interference with carrying on the back to understand between the frame 300 on the y direction.Because this constructive interference can make and produce interactional power between the glue frame of carrying on the back in frame 300 and the holes 342 400, therefore, when backlight module 200 was subjected to impacting, glue frame 400 also was not easy to take place phenomenon separated from one another with back of the body frame 300 on the y direction.
In addition, the back of the body frame 300 of present embodiment for example is a metal back frame 300.Because back of the body frame 300 has the extension characteristics of metal, therefore, back of the body frame 300 is imposed external force and the reflexed structure 344 that forms can have dome surface S.By Fig. 2 B as can be known, on the x direction and on the z direction, the phenomenon that also interferes with each other between dome surface S and the glue frame 400 with its coating.Therefore, in the present embodiment, the result that dome surface S is coated by glue frame 400 also can strengthen glue frame 400 and the bond strength of carrying on the back frame 300.
In the actual processing, can utilize the mould injection to go out technology and form chimeric each other structure between back of the body frame 300 and the glue frame 400, to produce the structure that glue frame 400 in the holes 342 and the interference structure between the reflexed structure 344 and the surperficial S of dome are coated by glue frame 400.What deserves to be mentioned is that in the present embodiment, in order to form the structure that dome surface S is coated by glue frame 400, mould can not contact with the dome surface S on the back of the body frame 300, but contact with the softer glue frame 400 of material.In other words, in the mould design, the situation that can not contact with each other and rub between dome surface S on the back of the body frame 300 and the mould.Therefore, mould is under the coating of the softer glue frame 400 of material, and the chance that mould is subjected to carrying on the back frame 300 compressings just can reduce.
What deserves to be mentioned is the needs of the visual product of the width W 1 of the holes 342 of present embodiment (being illustrated in Fig. 2 A) and adjusting.Fig. 3 illustrates the synoptic diagram of another backlight module of one embodiment of the invention, and wherein Fig. 3 omits parts such as backlight 500 and preceding frame 600.Please be simultaneously with reference to Fig. 2 C and Fig. 3, the width W 2 of the holes 342 of Fig. 3 is greater than the width W 1 of the holes 342 of Fig. 2 C.The holes 342 of width W 2 helps to strengthen glue frame 400 and the bond strength of carrying on the back frame 300 greatly, to avoid between glue frame 400 and the back of the body frame 300 situation of disengaging each other taking place.
In sum, the back of the body frame of backlight module of the present invention has a holes, and back of the body frame therewith the formed interference capability structure of glue frame in the holes can improve back of the body frame and the associativity of glue frame on x, y and z direction.Therefore, backlight module of the present invention is subjected to external force or when impacting, and back of the body frame and glue frame just are not easy the phenomenon of separating on x, y and z direction.In addition, the dome of back of the body frame of the present invention surface contact with the glue frame, just can significantly reduce so carry on the back the contact area that frame and mould injection go out the mould in the technology, and mould is subjected to carrying on the back the chance that frame oppresses and just decreases.
From the above, the impaired situation of the situation of separating between the back of the body frame and the glue frame and mould all improves, and therefore, backlight module of the present invention helps raising manufacturing qualification rate.In addition, causing backlight module to make defective spent expense because of the back of the body frame and glue frame associativity are not good can significantly lower, can also prolong the life-span of mould and the cost that mould is safeguarded in saving.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; those skilled in the art under any in the technical field; without departing from the spirit and scope of the present invention; should be able to make some change and modify, so protection scope of the present invention is as the criterion when looking as the attached scope that claims defined.
Claims (8)
1. backlight module comprises:
One back of the body frame, have a bottom supporting part and a side wall that up extends from the edge of this bottom supporting part, to define a spatial accommodation, wherein this side wall has a holes and a reflexed structure, this reflexed structure down bending to this spatial accommodation, with cover the part this holes;
One glue frame coats the subregion of this back of the body frame, and this glue frame of part extends to this holes to coat this reflexed structure from this spatial accommodation; And
One backlight is configured on this back of the body frame and this glue frame, and is positioned at this spatial accommodation.
2. backlight module as claimed in claim 1, wherein this back of the body frame is a metal back frame.
3. backlight module as claimed in claim 1, wherein this reflexed structure has a dome surface, and this dome surface is coated by this glue frame.
4. backlight module as claimed in claim 1, wherein the volume of this glue frame of part in this holes equates in fact with the volume of this holes.
5. backlight module as claimed in claim 1, this glue frame of part that wherein is arranged in this holes is subjected to the interference of this reflexed structure, to strengthen the bond strength of this glue frame and this back of the body frame.
6. backlight module as claimed in claim 1, wherein this backlight is a lateral incident type backlight source or a direct-light-type backlight.
7. backlight module as claimed in claim 1 also comprises a preceding frame, and frame and this back of the body frame fit together before wherein being somebody's turn to do.
8. backlight module as claimed in claim 7 should preceding frame be a metal front frame wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101305016A CN101290433B (en) | 2008-06-19 | 2008-06-19 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101305016A CN101290433B (en) | 2008-06-19 | 2008-06-19 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101290433A CN101290433A (en) | 2008-10-22 |
| CN101290433B true CN101290433B (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101305016A Active CN101290433B (en) | 2008-06-19 | 2008-06-19 | Backlight module |
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| Country | Link |
|---|---|
| CN (1) | CN101290433B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025099B (en) * | 2011-09-26 | 2016-08-10 | 海尔集团公司 | Display backplane and the display screen with this backboard |
| CN108957855B (en) * | 2018-07-26 | 2021-04-02 | 厦门天马微电子有限公司 | Display device |
| WO2020140847A1 (en) * | 2019-01-02 | 2020-07-09 | 海信视像科技股份有限公司 | Liquid crystal display device |
| US11067852B2 (en) | 2019-01-02 | 2021-07-20 | Hisense Visual Technology Co., Ltd. | Liquid crystal display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928655A (en) * | 2005-09-09 | 2007-03-14 | 群康科技(深圳)有限公司 | Back light module unit |
| CN101051152A (en) * | 2006-04-06 | 2007-10-10 | 东芝松下显示技术有限公司 | Planar light source unit and liquid crystal display device using the unit |
-
2008
- 2008-06-19 CN CN2008101305016A patent/CN101290433B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928655A (en) * | 2005-09-09 | 2007-03-14 | 群康科技(深圳)有限公司 | Back light module unit |
| CN101051152A (en) * | 2006-04-06 | 2007-10-10 | 东芝松下显示技术有限公司 | Planar light source unit and liquid crystal display device using the unit |
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| Publication number | Publication date |
|---|---|
| CN101290433A (en) | 2008-10-22 |
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