CN102537862A - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN102537862A CN102537862A CN2011104342752A CN201110434275A CN102537862A CN 102537862 A CN102537862 A CN 102537862A CN 2011104342752 A CN2011104342752 A CN 2011104342752A CN 201110434275 A CN201110434275 A CN 201110434275A CN 102537862 A CN102537862 A CN 102537862A
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- backlight module
- buffer part
- support portion
- backboard
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Abstract
The invention discloses a backlight module which comprises a back plate, at least one supporting piece and a plurality of light-emitting components, wherein the supporting piece is configured on the back plate, and comprises a support part and a buffer part; the support part is positioned between the buffer part and the back plate; the coefficient of elasticity of the buffer part is substantially less than that of the support part; the light-emitting components are configured on the back plate; and the supporting piece is arranged among the light-emitting components. The buffer part of the supporting piece of the backlight module is beneficial to the acting force buffering between the supporting piece and an object arranged above the supporting piece.
Description
The application is an application number: 200810171602.8, and denomination of invention " backlight module ", the dividing an application of the patent application of the applying date: 2008.10.21.
Technical field
The present invention relates to a kind of back light, and relate in particular to a kind of backlight module with support member of cushioning effect.
Background technology
Along with showing being showing improvement or progress day by day of science and technology, people are borrowing the auxiliary of display unit can make life convenient more, for asking light, the thin characteristic of display, so flat-panel screens (Flat Panel Display FPD) becomes present main flow.In many flat-panel screens, (Liquid Crystal Display LCD) has advantageous characteristic such as high spatial utilization ratio, low consumpting power, radiationless and low electromagnetic interference, and therefore, LCD is very popular in liquid crystal display.Because LCD is non-self luminous display, so the display panels light source of must arranging in pairs or groups can carry out the demonstration of image.Generally speaking, the LCD that provides light source to liquid crystal display face to be formed with backlight module is comparatively general.
Fig. 1 illustrates the partial cutaway schematic of the backlight module of prior art.Please with reference to Fig. 1, backlight module 100 comprises a backboard 110, a plurality of support member 120 and a plurality of fluorescent tube 130.Fluorescent tube 130 is by tube rack 150 clampings and be configured in the top of backboard 110, and support member 120 is between fluorescent tube 130.In general, support member 120 can utilize injection molding usually with tube rack 150 and make and be formed in the lump on the base material 160, so that the structure that support member 120, tube rack 150 and base material 160 become one and be shaped.In addition; Usually can dispose blooming pieces 170 such as reflector plate 140 and diffusion sheet, brightening piece, prismatic lens in the backlight module 100, the light source that fluorescent tube 130 is provided then can become the comparatively even and higher area source of luminous efficiency of brightness through the setting of reflector plate 140 and blooming piece 170.
Hold above-mentionedly, blooming piece 170 can be arranged in the backlight module 100 through the support of support member 120 usually.In other words, blooming piece 170 can directly contact with support member 120.Yet when backlight module 100 received external force, the situation of friction mutually can take place with support member 120 in blooming piece 170.So, support member 120 blooming piece 170 that just can directly wear and tear sustains damage the surface of blooming piece 170.When backlight liquid crystal display module 100 had this impaired blooming piece 170, LCD institute picture displayed was understood the impaired place in the corresponding blooming piece 170 and is shown bad situation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of backlight module, and the support member in this backlight module has buffer part, and backlight module of the present invention is applied in the display, helps to promote the display quality of this display.
For realizing above-mentioned purpose, the present invention proposes a kind of backlight module, and this backlight module comprises a backboard, at least one support member and a plurality of light-emitting component.Support arrangement is on backboard, and support member comprises a support portion and a buffer part.Support zone is between buffer part and backboard, and the coefficient of elasticity of buffer part is in fact less than the coefficient of elasticity of support portion.Light-emitting component is disposed on the backboard, and support member is between light-emitting component.
In one embodiment of this invention, the material of support portion is a Merlon, and the material of buffer part be thermoplastic polyurethane (thermo-plastic polyurathane, TPU).
In one embodiment of this invention, the support portion is a uneven surface in abutting connection with a side of buffer part.
In one embodiment of this invention, the support portion has a recess in abutting connection with a side of buffer part, and partial buffer portion is embedded in the recess.
In one embodiment of this invention, buffer part has a recess in abutting connection with a side of support portion, and the part support portion is embedded in the recess.
In one embodiment of this invention, the height of buffer part equals the height of support portion in fact.
In one embodiment of this invention, the height of buffer part is in fact less than the height of support portion.
This support portion and this buffer part are melted effect through heat and are combined.
In one embodiment of this invention, backlight module also comprises a reflector plate, and this reflector plate is disposed on the backboard and towards light-emitting component.
In one embodiment of this invention, light-emitting component is a fluorescent tube.In one embodiment, backlight module also comprises a plurality of tube racks, and tube rack is disposed on the backboard and the clamping fluorescent tube.In one embodiment, backlight module also comprises a base material.Base material is disposed on the backboard, and tube rack and support arrangement be on base material, and support portion and base material are one of the forming.In one embodiment, base material comprises a body and a plurality of stop section, and body and stop section be positioned at respectively backboard both sides so that base material be sticked on the backboard.
In one embodiment of this invention, backlight module also comprises at least one blooming piece, and blooming piece is disposed on the buffer part.
Support member in the backlight module of the present invention has the less buffer part of coefficient of elasticity, with the situation that takes place between buffering blooming piece and support member to rub mutually, and then the degree of injury of reduction blooming piece.Backlight module of the present invention is applied in the display, helps to promote the display quality of this display.
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.
Description of drawings
Fig. 1 illustrates the partial cutaway schematic of the backlight module of prior art;
Fig. 2 A illustrates the partial schematic diagram of the backlight module of the first embodiment of the present invention;
Fig. 2 B is the hatching L in Fig. 2 A
1The partial cutaway schematic that is illustrated;
Fig. 2 C is the local top view according to the backboard of Fig. 2 B;
Fig. 3 illustrates the partial cutaway schematic of the backlight module of the second embodiment of the present invention;
Fig. 4 illustrates the partial cutaway schematic of the backlight module of the third embodiment of the present invention.
Wherein, Reference numeral:
100: backlight module 110: backboard
120: support member 130: fluorescent tube
140: reflector plate 150: tube rack
160: base material 170: blooming piece
200,300,400: backlight module 210: backboard
210h, h1, h2: opening 220: support member
220a: plane 222: support portion
222a, 224a: recess 224: buffer part
230: light-emitting component 240: reflector plate
250: tube rack 260: base material
262: body 264: stop section
270: blooming piece
The specific embodiment
First embodiment
Fig. 2 A illustrates the partial schematic diagram of the backlight module of the first embodiment of the present invention, and Fig. 2 B is the hatching L in Fig. 2 A
1The partial cutaway schematic that is illustrated.Please be simultaneously with reference to Fig. 2 A and Fig. 2 B, the backlight module 200 of present embodiment comprises a backboard 210, at least one support member 220 and a plurality of light-emitting component 230, wherein support member 220 is disposed on the backboard 210.Light-emitting component 230 is disposed on the backboard 210, and support member 220 is between light-emitting component 230.On the practice, light-emitting component 230 is in order to providing light source, and backlight module 200 can further comprise a reflector plate 240.When reflector plate 240 is disposed at 210 last times of backboard towards light-emitting component 230, the line source that light-emitting component 230 is sent can become uniform surface light source through the reflection of reflector plate 240.
In the present embodiment, light-emitting component 230 for example is a fluorescent tube, and backlight module 200 can comprise further that tube rack 250 is in order to the clamping fluorescent tube.In other words, fluorescent tube can be arranged in the backlight module 200 through the tube rack on the backboard 210 250.On the practice, the mould injection goes out technology and can in the lump tube rack 250 and support member 220 be formed on the base material 260, so that tube rack 250 is connected to base material 260 with support member 220.So, tube rack 250 just can together be arranged on the backboard 210 through this base material 260 with support member 220.In addition, the base material 260 of present embodiment for example is the top that is disposed at reflector plate 240, so that reflector plate 240 is between base material 260 and backboard 210.
Hold above-mentionedly, base material 260 for example is to be made up of a body 262 and 264 of a plurality of stop sections, wherein body 262 and stop section 264 lay respectively at backboard 210 both sides so that base material 260 be sticked on the backboard 210.Fig. 2 C is the local top view according to the backboard of Fig. 2 B.Please be simultaneously with reference to Fig. 2 B and Fig. 2 C, the backboard 210 of present embodiment has opening 210h, is sticked on the backboard 210 in order to base material 260.For convenient explanation, opening 210h is numbered opening h1 and opening h2 according to its position.In detail, opening h1 be suitable for letting base material 260 through and make body 262 and stop section 264 lay respectively at the both sides of opening h1.Then, impose an external force,, and make between base material 260 and the backboard 210 and interfere with each other so that base material 260 can move to opening h2 from opening h1.Wherein, formed interference structure can make base material 260 be fixed among the opening h2 between base material 260 and the backboard 210, and avoids taking place between base material 260 and the backboard 210 situation separated from one another.
Please continue the B with reference to Fig. 2, support member 220 comprises a support portion 222 and a buffer part 224, and wherein support portion 222 is a plane 220a in abutting connection with a side of buffer part 224.From the above, present embodiment for example is to adopt the mould injection to go out technology in the lump base material 260, tube rack 250 are completed with support member 220, and wherein support portion 220 for example is one of the forming with base material 260.In addition, the buffer part of present embodiment 224 can go out in the technology in the mould injection with support portion 222 and forms in the lump, and wherein the mould injection goes out the adaptation that hot melt effect in the technology can increase buffer part 224 and support portion 222, comes off to avoid buffer part 224 self-supporting portions 222.So, the manufacture qualified rate of support member 220 is improved, and then reduces the cost of manufacture of backlight module 200.In addition, it is bonding that above-mentioned hot melt effect instead utilizes colloid that buffer part 224 and support portion 222 are carried out traditionally, with the processing step of further simplification backlight module 200.
In the present embodiment, backlight module 200 also comprises a plurality of blooming pieces 270, and support member 220 is for example in order to support these blooming pieces 270.Blooming piece 270 for example is the combination of diffusion sheet, brightening piece, prismatic lens or these diaphragms, and it is in order to promote the luminous efficiency or the luminance uniformity of backlight module 200.In case blooming piece 270 is worn or all can makes the light effect that of backlight module 200 receive negative influence because of stressed the distortion.Can know that by Fig. 2 B the blooming piece 270 of present embodiment is configured in the top of support member 220.So support member 220 need provide appropriate support power to avoid blooming piece 270 because of gravity effect flexural deformation on the one hand, on the other hand again can not too hard and make blooming piece 270 wearing and tearing.
Therefore, in the present embodiment, blooming piece 270 is disposed on the buffer part 224 of support member 220, and support portion 222 is between buffer part 224 and backboard 210.What deserves to be mentioned is that in the present embodiment, the coefficient of elasticity of buffer part 224 is in fact less than the coefficient of elasticity of support portion 222.For instance, when the material of support portion 222 for example is Merlon, the material of buffer part 224 can adopt the lower thermoplastic polyurethane of coefficient of elasticity (thermo-plastic polyurathane, TPU).In detail, the blooming piece 270 of present embodiment is arranged at the top of the buffer part 224 of support member 220, and contacts with the less buffer part 224 of coefficient of elasticity.At this moment, buffer part 224 helps to cushion the situation that mutual friction takes place between blooming piece 270 and the support member 220, with the degree of injury of further reduction blooming piece 270.
From the above, in the present embodiment, support member 220 is through the effect that combine can simultaneously reach support and buffering of support portion 222 with buffer part 224.Yet on material behavior, the support force of buffer part 224 is anticipated promptly not as good as the support force of support portion 222, and the support portion 222 of present embodiment has more the effect of support than buffer part 224.That is to say, not only the design that the support member 220 of present embodiment has a buffer part 224 be worn to avoid its top member, more can provide appropriate support power to prevent that its top member is because of stressed flexural deformation.
On the practice, both proportionate relationships of support portion in the support member 220 222 and buffer part 224 are to be preferable proportionate relationship to take into account supporting role and cushioning effect simultaneously.Particularly, when the height of buffer part 224 was equal to or less than the height of support portion 222 in fact, support member 220 can provide preferable enabling capabilities, to avoid support member 220 hypodynamic problem took place to support.
Second embodiment
Fig. 3 illustrates the partial cutaway schematic of the backlight module of the second embodiment of the present invention.Please with reference to Fig. 3, the backlight module 300 of present embodiment is similar with the backlight module 200 of first embodiment, and only the two main difference part is the kenel of support portion 222 in abutting connection with the intersection of buffer part 224.
As shown in Figure 3, support portion 222 has a recess 222a in abutting connection with a side of buffer part 224, and partial buffer portion 224 is arranged in recess 222a.On the practice, support portion 222 for example is to have a recess 222a in the side away from base material 260.In detail, the mould injection go out technology for example be will have recess 222a earlier support portion 222 fixed placement in a mould, then the material (like thermoplastic polyurethane) with buffer part 224 injects in the mould, to form buffer part 224 on the support portion in mould 222.Afterwards, through injection molding technology to accomplish support member 220.So, the part buffer part 224 that is arranged in the recess 222a of support portion 222 can be melted effect because of the heat of regional area and closely is connected in support portion 222.
Hold above-mentionedly, on material behavior, the coefficient of elasticity of buffer part 224 is in fact less than the coefficient of elasticity of support portion 222, and just support portion 222 is made by harder material relatively.When the height of buffer part 224 was equal to or less than the height of support portion 222 in fact, support member 220 can provide preferable enabling capabilities.In addition, the recess 222a of the support portion 222 of present embodiment can make support portion 222 and buffer part 224 present the situation of inlaying each other, so the support portion 222 of present embodiment can interfere with each other with buffer part 224.Support portion 222 and buffer part 224 formed interference structures can be strengthened the bond strength between support portion 222 and the buffer part 224, and then avoid support portion 222 to separate with buffer part 224.
Yet other member of present embodiment can be with reference to the design principle of first embodiment, and wherein same or analogous label is represented same or analogous member, in this not repeat specification.
The 3rd embodiment
Fig. 4 illustrates the partial cutaway schematic of the backlight module of the third embodiment of the present invention.Please with reference to Fig. 4, the backlight module 400 of present embodiment is similar with the backlight module of first, second embodiment 200,300, and only the two main difference part is the kenel of support portion 222 in abutting connection with the intersection of buffer part 224.
In addition, as shown in Figure 4, a side of 222 has a recess 224a to buffer part 224 in abutting connection with the support portion, and part support portion 222 is arranged in recess 224a.In other words; In the present embodiment; Support portion 222 also can interfere with each other with buffer part 224, and support portion 222 and buffer part 224 formed interference structures can be strengthened the bond strength between support portion 222 and the buffer part 224, and then avoids support portion 222 to separate with buffer part 224.In the present embodiment, with material behavior, less than the coefficient of elasticity of support portion 222, just support portion 222 is made by relative harder material the coefficient of elasticity of buffer part 224 in fact.When the height of buffer part 224 was equal to or less than the height of support portion 222 in fact, support member 220 can provide preferable enabling capabilities.
Generally, aforesaid recess 222a and recess 224a are not limited to one or a plurality of, also do not limit its shape.In fact, support portion 222 can be made into smooth or uneven aspect with different demands with connecting interface between the buffer part 224.Connecting interface between support portion 222 and buffer part 224 is uneven design, and the intensity that then interference effect of 224 of support portion 222 and buffer part can reinforced company's connection interface is to improve the mechanical strength of member.
Yet other member of present embodiment can be with reference to the design principle of first embodiment, and wherein same or analogous label is represented same or analogous member, in this not repeat specification.
In sum, the support member in the backlight module of the present invention has support portion and buffer part, and wherein the coefficient of elasticity of buffer part is less than the coefficient of elasticity of support portion.Thus, the situation that friction mutually takes place between blooming piece and the support member can obtain buffering, and then reduces the degree of injury of blooming piece.Backlight module of the present invention is applied in the display, and then backlight module causes support member to make display show that the situation of bad picture can be improved because of receiving external force.In addition, appropriateness changes the kenel of support portion in abutting connection with the intersection of buffer part, can further strengthen the degree of engagement of support portion and buffer part.So, the yield of support member is able to promote, and then saves the technology cost.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (13)
1. a backlight module is characterized in that, comprising:
One backboard;
At least one support member is disposed on this backboard, and this support member comprises a support portion and a buffer part, and this support zone is between this buffer part and this backboard, and the coefficient of elasticity of this buffer part is less than the coefficient of elasticity of this support portion; And
A plurality of light-emitting components are disposed on this backboard, and this support member is between those light-emitting components.
2. backlight module according to claim 1 is characterized in that, the material of this support portion is a Merlon, and the material of this buffer part is a thermoplastic polyurethane.
3. backlight module according to claim 1 is characterized in that, this support portion is a uneven surface in abutting connection with a side of this buffer part.
4. backlight module according to claim 1 is characterized in that, this support portion has a recess in abutting connection with a side of this buffer part, and this buffer part of part is embedded in this recess.
5. backlight module according to claim 1 is characterized in that, this buffer part has a recess in abutting connection with a side of this support portion, and this support portion of part is embedded in this recess.
6. backlight module according to claim 1 is characterized in that, the height of this buffer part is equal to or less than the height of this support portion.
7. backlight module according to claim 1 is characterized in that, this support portion and this buffer part are melted effect through heat and combined.
8. backlight module according to claim 1 is characterized in that, also comprises a reflector plate, is disposed on this backboard and towards those light-emitting components.
9. backlight module according to claim 1 is characterized in that, those light-emitting components are a plurality of fluorescent tubes.
10. backlight module according to claim 9 is characterized in that, also comprises a plurality of tube racks, be disposed on this backboard, and the clamping lamp tubes.
11. backlight module according to claim 10 is characterized in that, also comprises a base material, is disposed on this backboard, lamp tubes frame and this support arrangement are on this base material, and this support portion and this base material are one of the forming.
12. backlight module according to claim 11 is characterized in that, this base material comprises a body and a plurality of stop section, this body and those stop sections be positioned at respectively this backboard both sides so that this base material be sticked on this backboard.
13. backlight module according to claim 1 is characterized in that, also comprises at least one blooming piece, is disposed on this buffer part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104342752A CN102537862A (en) | 2008-10-21 | 2008-10-21 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104342752A CN102537862A (en) | 2008-10-21 | 2008-10-21 | Backlight module |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101716028A Division CN101382260A (en) | 2008-10-21 | 2008-10-21 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537862A true CN102537862A (en) | 2012-07-04 |
Family
ID=46345436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104342752A Pending CN102537862A (en) | 2008-10-21 | 2008-10-21 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535908A (en) * | 2018-04-16 | 2018-09-14 | 惠州市华星光电技术有限公司 | Backlight module support column and down straight aphototropism mode set |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044437A1 (en) * | 2000-10-14 | 2002-04-18 | Lee Joung Jae | Back light assembly for liquid crystal display device |
| CN1648741A (en) * | 2005-03-04 | 2005-08-03 | 友达光电股份有限公司 | Back light module |
| CN1959500A (en) * | 2005-11-02 | 2007-05-09 | 三星电子株式会社 | Backlight assembly, liquid crystal display apparatus and method of manufacturing lamp-fixing member |
-
2008
- 2008-10-21 CN CN2011104342752A patent/CN102537862A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044437A1 (en) * | 2000-10-14 | 2002-04-18 | Lee Joung Jae | Back light assembly for liquid crystal display device |
| CN1648741A (en) * | 2005-03-04 | 2005-08-03 | 友达光电股份有限公司 | Back light module |
| CN1959500A (en) * | 2005-11-02 | 2007-05-09 | 三星电子株式会社 | Backlight assembly, liquid crystal display apparatus and method of manufacturing lamp-fixing member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535908A (en) * | 2018-04-16 | 2018-09-14 | 惠州市华星光电技术有限公司 | Backlight module support column and down straight aphototropism mode set |
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Application publication date: 20120704 |