CN204026335U - A kind of backlight module and display unit - Google Patents
A kind of backlight module and display unit Download PDFInfo
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- CN204026335U CN204026335U CN201420391166.6U CN201420391166U CN204026335U CN 204026335 U CN204026335 U CN 204026335U CN 201420391166 U CN201420391166 U CN 201420391166U CN 204026335 U CN204026335 U CN 204026335U
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- 238000012545 processing Methods 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims description 25
- 230000000994 depressogenic effect Effects 0.000 claims description 19
- 238000009792 diffusion process Methods 0.000 claims description 14
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 3
- 239000010408 film Substances 0.000 description 34
- 239000003292 glue Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000002648 laminated material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model provides a kind of backlight module and display unit.This backlight module comprises light source and light processing unit, light processing unit comprises and covers successively reflector plate, LGP and the film material group stacking, the edge bag of light processing unit is provided with photomask, light source is positioned at the first edge of light processing unit, and each rete in light processing unit all aligns at other edges except the first edge; Light source is arranged on the edge end face at correspondence first edge of LGP, and each rete in light processing unit is at the first edge all align; Or light source is arranged on the exiting surface at correspondence first edge of LGP, reflector plate and LGP are at the first justified margin, and film material group is covered folded stepped at the first edge.The edge designs of this backlight module, can make photomask by the firm pasting all of each rete in light processing unit, thereby effectively avoid each rete in light processing unit to occur relative shift, and then avoid backlight module edge to occur bright line phenomenon.
Description
Technical field
The utility model relates to Display Technique field, particularly, relates to a kind of backlight module and display unit.
Background technology
Along with the development of Display Technique and social progress, liquid crystal indicator is applied by people more and more widely, plays vital effect in industrial production, people's lives.
In liquid crystal indicator, be conventionally all provided with backlight module, backlight module is used for when showing for liquid crystal indicator provides backlight.In backlight module, be conventionally all provided with light source and mutually cover reflector plate, LGP and other optical films stacking, these retes are processed for the light that light source is sent, so that the light penetrating from the above-mentioned whole exiting surface that covers folded rete can be more even.
In order to limit and to fix mutually covering the above-mentioned rete stacking, conventionally in the edge of covering the above-mentioned rete stacking, glue frame is set.In the preparation process of backlight module, normally by each rete by position correction, be then attached in glue frame.
Owing to covering in glue frame between the edge of folded rete and glue frame, there is gap, so cover folded rete, be easy under external force occurrence positions relativity shift, the folded rete that covers after the skew of position is difficult to again carry out secondary position correction in glue frame, easily cause the backlight module after having prepared to occur light leak in edge, thereby cause its edge to occur bright line phenomenon, have a strong impact on the display quality of display unit.
Utility model content
The utility model, for the above-mentioned technical problem existing in prior art, provides a kind of backlight module and display unit.This backlight module is set to alignment or is not lined up by the first edge of light processing unit, other edges are set to alignment, and establish photomask at the edge of light processing unit bag, make the photomask can be by the firm pasting all of each rete in light processing unit, thereby effectively avoid each rete in light processing unit to occur relative shift, and then avoid backlight module edge to occur bright line phenomenon.
The utility model provides a kind of backlight module, comprise light source and light processing unit, described light processing unit comprises and covers successively reflector plate, LGP and the film material group stacking, the edge bag of described light processing unit is provided with photomask, described light source is positioned at the first edge of described light processing unit, and each rete in described light processing unit all aligns at other edges except described the first edge;
Described light source is arranged on the edge end face at described first edge of correspondence of described LGP, and each rete in described light processing unit is at described the first edge all align; Or described light source is arranged on the exiting surface region at described first edge of correspondence of described LGP, described reflector plate and described LGP are at described the first justified margin, and described film material group is covered folded stepped at described the first edge.
Preferably, described LGP has depressed part at the described exiting surface region division at described the first edge of correspondence, described light source comprises light-emitting component and is arranged on the flexible circuitry sheet at the described light-emitting component back side, described light-emitting component is embedded in described depressed part, and the size shape of described light-emitting component and described depressed part is suitable; Described flexible circuitry sheet is sticked on the exiting surface of described LGP.
Preferably, described film material group comprises the diffusion sheet covering successively on the described exiting surface that is stacked in described LGP, lower prism and upper prism, and described diffusion sheet, described lower prism and described upper prism reduce along the length linearity perpendicular to described the first edge direction;
Edge is the width along the described flexible circuitry sheet perpendicular to described the first edge direction perpendicular to the length of described LGP of described the first edge direction and the difference of the length of described diffusion sheet.
Preferably, described LGP is provided with depressed part on the edge end face at described the first edge of correspondence, described light source comprises light-emitting component and is arranged on the flexible circuitry sheet at the described light-emitting component back side, described light-emitting component is embedded in described depressed part, and the size shape of described light-emitting component and described depressed part is suitable; Described flexible circuitry sheet is sticked on the edge at described the first edge end face.
Preferably, described flexible circuitry sheet overlaps with the edge end face at described the first edge.
Preferably, the edge of described light processing unit comprises the lower surface edge back to described LGP of edge end face, described reflector plate and the top surface edge back to described LGP of described film material group; Between the edge end face at other edges except described the first edge of described light processing unit and described photomask, be folded with barrier film.
Preferably, described barrier film overlaps with the edge end face at other edges except described the first edge of described light processing unit.
Preferably, described barrier film adopts PETG or ink material, and the thickness range of described barrier film is 10-150 μ m.
Preferably, described photomask adopts the light tight two-sided tape of 704A, the light tight two-sided tape of BTX-8933AD or the light tight two-sided tape of BTX-8934AD, and the thickness range of described photomask is 0.030-0.200mm.
The utility model also provides a kind of display unit, comprises above-mentioned backlight module.
The beneficial effects of the utility model: backlight module provided by the utility model, by each rete in light processing unit, at the first edge, be set to alignment or do not line up, at other edges except the first edge, be set to alignment, and establish photomask at the edge of light processing unit bag, make the photomask can be by the firm pasting all of each rete in light processing unit, thereby effectively avoid each rete in light processing unit to occur relative shift, and then avoid backlight module edge to occur bright line phenomenon.
Display unit provided by the utility model, by adopting above-mentioned backlight module, make display floater surrounding edge when showing of this display unit there will not be bright line phenomenon, not only improved the utilization rate of light backlight, and promoted the display quality of this display unit.
Accompanying drawing explanation
Fig. 1 is the structure cutaway view of backlight module in the utility model embodiment 1;
Fig. 2 is the structure cutaway view of backlight module in the utility model embodiment 2.
Description of reference numerals wherein:
1. light source; 11. light-emitting components; 12. flexible circuitry sheets; 2. light processing unit; 21. reflector plates; 211. lower surface edge; 22. LGPs; 221. depressed part; 23. film material groups; 231. diffusion sheet; 232. times prisms; Prism on 233.; 234. top surface edge; 24. first edges; 25. edge end faces; 3. photomask; 4. barrier film.
The specific embodiment
For making those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, a kind of backlight module provided by the utility model and display unit are described in further detail.
Embodiment 1:
The present embodiment provides a kind of backlight module, as shown in Figure 1, comprise light source 1 and light processing unit 2, light processing unit 2 comprises and covers successively reflector plate 21, LGP 22 and the film material group 23 stacking, the edge bag of light processing unit 2 is provided with photomask 3, light source 1 is positioned at 24 places, the first edge of light processing unit 2, and each rete in light processing unit 2 all aligns at other edges except the first edge 24; Light source 1 is arranged on the exiting surface region at correspondence first edge 24 of LGP 22, and reflector plate 21 and LGP 22 are in the first edge 24 alignment, and film material group 23 is covered folded stepped at the first edge 24.
So arrange, can make photomask 3 that each rete in light processing unit 2 is all pasted and firm pasting, thereby effectively avoid each rete in light processing unit 2 to occur relative shift, and then avoid backlight module edge to occur bright line phenomenon.
In the present embodiment, LGP 22 has depressed part 221 at the exiting surface region division at corresponding the first edge 24, light source 1 comprises light-emitting component 11 and is arranged on the flexible circuitry sheet 12 at light-emitting component 11 back sides, light-emitting component 11 is embedded in depressed part 221, and light-emitting component 11 is suitable with the size shape of depressed part 221; Flexible circuitry sheet 12 is sticked on the exiting surface of LGP 22.So arrange, can guarantee that the thickness of whole backlight module can not increase.
In the present embodiment, film material group 23 comprises diffusion sheet 231, lower prism 232 and the upper prism 233 covering successively on the exiting surface that is stacked in LGP 22, and diffusion sheet 231, lower prism 232 and upper prism 233 reduce along the length linearity perpendicular to the first edge 24 directions.Edge is the width along the flexible circuitry sheet 12 perpendicular to the first edge 24 directions perpendicular to the length of LGP 22 of the first edge 24 directions and the difference of the length of diffusion sheet 231.Be the length that the length of diffusion sheet 231 is less than LGP 22, at 24 places, corresponding the first edge, the edge of the edge of diffusion sheet 231 and LGP 22 does not line up, because diffusion sheet 231 equals the width of flexible circuitry sheet 12 just than the short size out of LGP 22, so the flexible circuitry sheet 12 being sticked on LGP 22 exiting surfaces can come out.In addition, cover successively linear shortening of length of the lower prism 232 that is stacked on diffusion sheet 231 and upper prism 233, film material group 23 is covered folded stepped at 24 places, the first edge.
So arrange, thereby make on the one hand whole backlight module can not be sticked and on the exiting surface of LGP 22, increase thickness because of flexible circuitry sheet 12; Also make on the other hand photomask 3 directly to contact with each rete in film material group 23, thereby make each rete can by firm stable fix, under the tight parcel of photomask 3, can not produce each other any position relativity shift, and then avoid backlight module edge to occur bright line phenomenon, improving picture display quality, simultaneously also because light-emitting component 11 itself needs certain light mixing distance to alleviate luminance nonuniformity phenomenon, so film material group 23 is covered the folded stepped realization that can not affect narrow frame at 24 places, the first edge.
In the present embodiment, the edge of light processing unit 2 comprises the lower surface edge 211 back to LGP 22 of edge end face 25, reflector plate 21 and the top surface edge 234 back to LGP 22 of film material group 23; Between the edge end face 25 at other edges except the first edge 24 of light processing unit 2 and photomask 3, be folded with barrier film 4.Barrier film 4 can will separate between the adhesive glue on photomask 3 and the edge end face 25 of light processing unit 2, adhesive glue can directly not contacted with edge end face 25, the setting of barrier film 4 can prevent from appearing light between the edge end face 25 at other edges except the first edge 24 of light processing unit 2 and photomask 3, thereby reduced the loss of light, improved the utilization rate of light, also can avoid occurring that (bright border phenomenon is because photomask 3 and edge end face 25 are directly fitted to bright border phenomenon simultaneously, laminated material can carry out transmission to light, refraction or diffuse reflection, thereby light is appeared from laminated material, cause bright border phenomenon).
In the present embodiment, barrier film 4 overlaps completely with the edge end face 25 at other edges except the first edge 24 of light processing unit 2.So arrange, can avoid not having light between other edges except the first edge 24 of light processing unit 2 and photomask 3 completely and appear, also there will not be bright border phenomenon.
It should be noted that, in the present embodiment, reflector plate 21 and LGP 22 are also provided with barrier film 4 between the edge end face at corresponding the first edge 24 and photomask 3, as white barrier film 4, because white barrier film 4 can be reflected back the light overwhelming majority being irradiated on it in light processing unit 2, so can further improve the utilization rate of light.
It should be noted that in addition, due to each rete in film material group 23 at the first edge 24 stepped cover folded, make photomask 3 larger at the shading-area at the first edge 24, so, even if barrier film 4 is not set between the edge end face at reflector plate 21 and corresponding the first edge 24 of LGP 22 and photomask 3, at the first edge 24, do not have light yet and appear, there will not be bright border phenomenon, therefore, can be completely between the edge end face 25 at the first edge 24 and photomask 3, barrier film 4 be set.
In the present embodiment, barrier film 4 adopts PETG (being PET) or ink material, and the thickness range of barrier film 4 is 10-150 μ m.Photomask 3 adopts the light tight two-sided tape of 704A, the light tight two-sided tape of BTX-8933AD or the light tight two-sided tape of BTX-8934AD, and the thickness range of photomask 3 is 0.030-0.200mm.It should be noted that, barrier film 4 and photomask 3 are not limited to adopt above-mentioned material, as long as can realize above-mentioned effect.Because the thickness of barrier film 4 and photomask 3 is all very little, thus can realize the backlight module of super narrow frame, thus can meet the development trend of current narrow frame display unit.In addition, adopt the photomask 3 of above-mentioned light tight two-sided tape to paste the edge of light processing unit 2 fixing, make each rete position firm stable more each other; And can block light, prevent that light from launching from the edge of light processing unit 2, avoid causing a large amount of losses of light.
Embodiment 2:
The present embodiment provides a kind of backlight module, as different from Example 1, as shown in Figure 2, LGP 22 is provided with depressed part 221 on the edge end face at corresponding the first edge 24, light source 1 comprises light-emitting component 11 and is arranged on the flexible circuitry sheet 12 at light-emitting component 11 back sides, light-emitting component 11 is embedded in depressed part 221, and light-emitting component 11 is suitable with the size shape of depressed part 221; Flexible circuitry sheet 12 is sticked on the edge end face 25 at the first edge 24.Because the Thickness Ratio of flexible circuitry sheet 12 is thinner, so so setting can guarantee that the border width of whole backlight module can not increase too much, meets the development trend of current narrow frame display unit.
Wherein, flexible circuitry sheet 12 overlaps completely with the edge end face 25 at the first edge 24.Due to the peplos material material of flexible circuitry sheet 12 and the material of barrier film 4 basic identical, so flexible circuitry sheet 12 can play the effect that do not make light see through identical with barrier film 4, thereby can prevent that bright border phenomenon from appearring in the first edge 24 of light processing unit 2.Therefore, in the present embodiment, between the edge end face 25 at the first edge 24 and photomask 3 also just without barrier film 4 is set again.
In the present embodiment, other structures of backlight module are in the same manner as in Example 1, repeat no more herein.
The beneficial effect of embodiment 1-2: the backlight module providing in embodiment 1-2, by each rete in light processing unit, at the first edge, be set to alignment or do not line up, at other edges except the first edge, be set to alignment, and establish photomask at the edge of light processing unit bag, make the photomask can be by the firm pasting all of each rete in light processing unit, thereby effectively avoid each rete in light processing unit to occur relative shift, and then avoid backlight module edge to occur bright line phenomenon.
Embodiment 3:
The present embodiment provides a kind of display unit, comprises the backlight module of embodiment 1-2 in any one.
By adopting the backlight module of embodiment 1-2 in any one, make display floater surrounding edge when showing of this display unit there will not be bright line phenomenon, not only improve the utilization rate of light backlight, and promoted the display quality of this display unit.
Be understandable that, above embodiment is only used to principle of the present utility model is described and the illustrative embodiments that adopts, yet the utility model is not limited to this.For those skilled in the art, in the situation that not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (10)
1. a backlight module, comprise light source and light processing unit, described light processing unit comprises and covers successively reflector plate, LGP and the film material group stacking, it is characterized in that, the edge bag of described light processing unit is provided with photomask, described light source is positioned at the first edge of described light processing unit, and each rete in described light processing unit all aligns at other edges except described the first edge;
Described light source is arranged on the edge end face at described first edge of correspondence of described LGP, and each rete in described light processing unit is at described the first edge all align; Or described light source is arranged on the exiting surface region at described first edge of correspondence of described LGP, described reflector plate and described LGP are at described the first justified margin, and described film material group is covered folded stepped at described the first edge.
2. backlight module according to claim 1, it is characterized in that, described LGP has depressed part at the described exiting surface region division at described the first edge of correspondence, described light source comprises light-emitting component and is arranged on the flexible circuitry sheet at the described light-emitting component back side, described light-emitting component is embedded in described depressed part, and the size shape of described light-emitting component and described depressed part is suitable; Described flexible circuitry sheet is sticked on the exiting surface of described LGP.
3. backlight module according to claim 2, it is characterized in that, described film material group comprises the diffusion sheet covering successively on the described exiting surface that is stacked in described LGP, lower prism and upper prism, and described diffusion sheet, described lower prism and described upper prism reduce along the length linearity perpendicular to described the first edge direction;
Edge is the width along the described flexible circuitry sheet perpendicular to described the first edge direction perpendicular to the length of described LGP of described the first edge direction and the difference of the length of described diffusion sheet.
4. backlight module according to claim 1, it is characterized in that, described LGP is provided with depressed part on the edge end face at described the first edge of correspondence, described light source comprises light-emitting component and is arranged on the flexible circuitry sheet at the described light-emitting component back side, described light-emitting component is embedded in described depressed part, and the size shape of described light-emitting component and described depressed part is suitable; Described flexible circuitry sheet is sticked on the edge at described the first edge end face.
5. backlight module according to claim 4, is characterized in that, described flexible circuitry sheet overlaps with the edge end face at described the first edge.
6. backlight module according to claim 1, it is characterized in that, the edge of described light processing unit comprises the lower surface edge back to described LGP of edge end face, described reflector plate and the top surface edge back to described LGP of described film material group; Between the edge end face at other edges except described the first edge of described light processing unit and described photomask, be folded with barrier film.
7. backlight module according to claim 6, is characterized in that, described barrier film overlaps with the edge end face at other edges except described the first edge of described light processing unit.
8. backlight module according to claim 7, is characterized in that, described barrier film adopts PETG or ink material, and the thickness range of described barrier film is 10-150 μ m.
9. according to the backlight module described in claim 1-8 any one, it is characterized in that, described photomask adopts the light tight two-sided tape of 704A, the light tight two-sided tape of BTX-8933AD or the light tight two-sided tape of BTX-8934AD, and the thickness range of described photomask is 0.030-0.200mm.
10. a display unit, is characterized in that, comprises the backlight module described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391166.6U CN204026335U (en) | 2014-07-15 | 2014-07-15 | A kind of backlight module and display unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391166.6U CN204026335U (en) | 2014-07-15 | 2014-07-15 | A kind of backlight module and display unit |
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| CN204026335U true CN204026335U (en) | 2014-12-17 |
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| CN201420391166.6U Expired - Fee Related CN204026335U (en) | 2014-07-15 | 2014-07-15 | A kind of backlight module and display unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749819A (en) * | 2015-04-13 | 2015-07-01 | 武汉华星光电技术有限公司 | Backlight module assembly method, backlight module and display |
| CN108954053A (en) * | 2017-05-22 | 2018-12-07 | 南昌欧菲显示科技有限公司 | Backlight module, display device and terminal |
-
2014
- 2014-07-15 CN CN201420391166.6U patent/CN204026335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749819A (en) * | 2015-04-13 | 2015-07-01 | 武汉华星光电技术有限公司 | Backlight module assembly method, backlight module and display |
| CN104749819B (en) * | 2015-04-13 | 2018-05-29 | 武汉华星光电技术有限公司 | Assemble method, backlight module and the display of backlight module |
| CN108954053A (en) * | 2017-05-22 | 2018-12-07 | 南昌欧菲显示科技有限公司 | Backlight module, display device and terminal |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 |