CN102966887B - Backlight module and display element - Google Patents
Backlight module and display element Download PDFInfo
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- CN102966887B CN102966887B CN201210431751.XA CN201210431751A CN102966887B CN 102966887 B CN102966887 B CN 102966887B CN 201210431751 A CN201210431751 A CN 201210431751A CN 102966887 B CN102966887 B CN 102966887B
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- extension
- optical sheet
- backlight module
- housing
- blooming piece
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- 230000003287 optical effect Effects 0.000 claims abstract description 101
- 229920000297 Rayon Polymers 0.000 claims description 14
- 239000012788 optical film Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Abstract
A backlight module and a display element are provided, the backlight module includes: the optical film comprises a shell, an optical plate, a light source, a reflecting sheet and an optical diaphragm. The optical plate is located in the shell and has a light-emitting surface, a light-entering surface and a first side surface connected with the light-emitting surface. The light source is adjacent to the light incident surface. The reflector is located between the shell and the optical plate and faces the opposite side of the light-emitting surface. The optical film faces the light-emitting surface and has an extending portion extending between the housing and the first side surface. The invention has the technical advantage of reducing the width of the frame, and meets the design requirement of the current backlight module with a small frame.
Description
Technical field
The invention relates to a kind of backlight module and application structure thereof, and relate to a kind of backlight module and the application structure thereof with narrow border structure especially.
Background technology
Flourish along with opto-electronics, liquid crystal display (liquid crystal display; Be called for short LCD) be widely used at TV (Television; TV), screen (monitor), mobile computer (notebook; NB), personal digital assistant (personal digital assistant; PDA) and in the electronic installation such as mobile phone (cell phone).But liquid crystal display is a kind of flat-panel screens of non-self luminescence, need the outer backlight that adds or side light source is to provide illumination.Therefore, in a liquid crystal display all can by a backlight module as light source, the illumination by this backlight module high brightness and high uniformity makes liquid crystal display efficiently can demonstrate the picture of high image quality.
Existing backlight mould generally comprises light source, backboard, optical sheet and blooming piece.Wherein, light source and optical sheet system are placed among backboard; Blooming piece then keeps flat and is stacked on optical sheet, and wears the mode of the hangers at blooming piece edge by locating pin (pin) or backboard accordion wall, is fixed.But due to, need reserved expansion room between blooming piece and backboard, otherwise blooming sector-meeting is because of extruding warpage, and affects image quality.Add as preventing hangers from being torn because blooming piece expands, one fixed width also must be stayed by the hangers place wearing locating pin (pin) or backboard accordion wall.So make backlight module be used for the frame of hiding non-visible area, space can be utilized effectively to reduce, and do not meet at present towards the designing requirement of little frame backlight module.
Therefore, there is the backlight module needing to provide a kind of novelty, effectively can reduce the size of the location structure of blooming piece, to solve the problem that existing backlight module frame size cannot effectively reduce, promote the display quality of liquid crystal display simultaneously.
Summary of the invention
The present invention proposes a kind of backlight module and display element, to solve the problem that existing backlight module frame size cannot effectively reduce.
One aspect of the present invention is providing a kind of backlight module, comprising: housing, optical sheet, light source, reflector plate and the first blooming piece.Optical sheet is positioned among housing, and has an exiting surface, one first side be connected with exiting surface and one second side relative to the first side.Light source is located between housing and optical sheet.Reflector plate between housing and optical sheet, and in the face of the opposite side of exiting surface.First blooming piece, in the face of exiting surface, has one first extension, extends between housing and the first side.
Among one embodiment of the invention, extension sticks together by a two-sided tape or an one-faced tapes and is fixed on the first side.
Among one embodiment of the invention, backlight module more comprises the side plate being fixed on the first side, has the reflecting surface in the face of the first side.Among one embodiment of the invention, the coverage of this one-faced tapes is more than the first extension, and the viscose face of one-faced tapes is in the face of side plate.
Among one embodiment of the invention, the coverage of one-faced tapes is more than the first extension, and the viscose face of one-faced tapes is reflective surface.
Among one embodiment of the invention, the development length of the first extension, exceedes 1/2nd of the thickness of optical sheet.
Among one embodiment of the invention, the incidence surface of optical sheet is positioned at the opposite side of the first side.
Among one embodiment of the invention, the incidence surface of optical sheet is positioned at the opposite side of exiting surface, and light source is between optical sheet and reflector plate.
Among one embodiment of the invention, backlight module more comprises one second blooming piece, between the first blooming piece and exiting surface, has one second extension, extends between housing and the first side, and do not overlap with the first extension.
Among one embodiment of the invention, the first blooming piece has more one the 3rd extension, extends between this housing and one the 3rd side of this optical sheet.
Among one embodiment of the invention, the first extension has a perforate.
Another aspect of the present invention is providing a kind of display element, comprising: backlight module and display floater.Wherein, backlight module comprises housing, optical sheet, light source, reflector plate and the first blooming piece.Optical sheet is positioned among housing, and has an exiting surface, one first side be connected with exiting surface and one second side relative to the first side.Light source is located between housing and optical sheet.Reflector plate between housing and optical sheet, and in the face of the opposite side of exiting surface.First blooming piece, in the face of exiting surface, has the first extension, extends between housing and the first side.Display floater is arranged at the side of the exiting surface of the first blooming piece.
Among one embodiment of the invention, extension, by two-sided tape, is attached on the first side.
Among one embodiment of the invention, extension, by one-faced tapes, is attached on the first side.
Among one embodiment of the invention, backlight module more comprises the side plate being fixed on the first side, and this side plate has the reflecting surface in the face of the first side.Among one embodiment of the invention, the coverage of one-faced tapes is more than the first extension, and the viscose face of one-faced tapes is in the face of side plate.
Among one embodiment of the invention, the coverage of one-faced tapes is more than the first extension, and the viscose face of one-faced tapes is reflective surface.
Among one embodiment of the invention, the development length of the first extension, exceedes 1/2nd of optical sheet thickness.
Among one embodiment of the invention, display element more comprises a light source, is adjacent to the second side.
Among one embodiment of the invention, display element more comprises a light source, between optical sheet and reflector plate.
Among one embodiment of the invention, display element more comprises the second blooming piece, and between the first blooming piece and exiting surface, the second blooming piece has the second extension, extends between housing and the first side, and does not overlap with the first extension.
Among one embodiment of the invention, the first blooming piece has more the 3rd extension, extends between housing and the 3rd side of optical sheet.
Among one embodiment of the invention, the first extension has perforate.
According to above-mentioned, embodiments of the invention are to provide a kind of backlight module and application apparatus thereof, wherein backlight module comprises a blooming piece in the face of backlight module exiting surface, and blooming piece edge has an extension, the extensible backboard in backlight module and be used for bearing optical diaphragm optical sheet side between; And by adhesive tape sticking extension, blooming piece can be fixed on the side of optical sheet.
Due to, between backboard and the side of optical sheet, be originally just reserved with expansion room, and the thickness of blooming piece and adhesive tape is quite thin.Therefore, adopt adhesive tape to be fixed by the extension extended between backboard and optical sheet side, additionally can't increase frame size.Not only there is the technical advantage reducing border width, meet at present towards the designing requirement of little frame backlight module.And, due to the coefficient of expansion of optical sheet, generally large than the coefficient of expansion of blooming piece.If being extended by blooming piece is fixed between backboard and the side of optical sheet, blooming piece will expand along with the optical sheet that the coefficient of expansion is larger, by synchro-draw, and more smooth.Blooming piece can't be made to occur because expansion space is reserved not enough, and by backboard extruding warpage, or the problem such as tear by hangers.Whereby, more can improve the problem of the caused image quality light and shade inequality of ripple (film waving) because of optical sheet, contribute to the light uniformity improving backlight module, promote the display quality of display.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Figure 1A is according to one embodiment of the invention, a kind of structural profile schematic diagram with the side light type back light module of narrow border structure illustrated.
The partial perspective structural representation of backlight module of Figure 1B for illustrating according to Figure 1A.
Fig. 2 is according to another preferred embodiment of the present invention, a kind of partial structure generalized section with the side light type back light module of narrow border structure illustrated.
Fig. 3 is according to another preferred embodiment of the present invention, a kind of partial structure generalized section with the side light type back light module of narrow border structure illustrated.
Fig. 4 is according to still another preferred embodiment of the present invention, and a kind of employing illustrated has the structural profile schematic diagram of the direct type backlight module of narrow border structure.
Fig. 5 is according to a preferred embodiment of the present invention, and a kind of employing illustrated has the structural profile schematic diagram of the display of the direct type backlight module of narrow border structure.
Fig. 6 is according to a preferred embodiment more again of the present invention, a kind of partial structure generalized section with the side light type back light module of narrow border structure illustrated.
Wherein, Reference numeral:
40: display 41: display floater
100: side light type back light module 101: housing
101a: bottom surface 101b: wall
102: optical sheet 102a: exiting surface
102b: the second side, side 102c: the first
102d: the three side, side 102e: the four
102f: surface 103: reflector plate
103a: reflecting surface 104: the first blooming piece
104a: the first extension 104b: perforate
104c: the second extension 105: light source
106: space 108: side plate
108a: reflecting surface 109: one-faced tapes
109a: part mucigel 109b: another part mucigel
110: the second blooming piece 110a: extension
200: side light type back light module
209: one-faced tapes 209a: mucigel
209b: viscose face 300: side light type back light module
309: two-sided tape 309a: viscose face
309b: viscose face 309c: mucigel
309d: mucigel 400: direct type backlight module
404: blooming piece 404a: extension
404b: extension 405: light source
600: backlight module 604: blooming piece
604a: extension 608: side plate
608a: the one side 608b of side plate: the another side of side plate
609a: gum 609b: gum
θ: angle H: the development length of extension
T: lateral thickness S: tangent line
Detailed description of the invention
The present invention is providing a kind of backlight module with narrow border structure, to solve the problem that existing backlight module frame size cannot effectively reduce.Can become apparent for allowing above and other objects of the present invention, feature and advantage, cited below particularly several, there is the backlight module of narrow border structure, and the aobvious view apparatus applying this kind of backlight module is as preferred embodiment, and coordinate institute's accompanying drawings, be described in detail below.
Please refer to Figure 1A and Figure 1B, Figure 1A is according to one embodiment of the invention, a kind of structural profile schematic diagram with the side light type back light module 100 of narrow border structure illustrated.Figure 1B is the partial perspective structural representation of the backlight module 100 illustrated according to Figure 1A.Wherein, Figure 1A is roughly illustrated along the tangent line S of Figure 1B.But for the purpose of clear description, Figure 1B does not illustrate all elements of backlight module 100, but omit portion of element and do not add and illustrate.
Backlight module 100 comprises: housing 101, optical sheet 102, reflector plate 103, first blooming piece 104 and light source 105.Housing 101 has a bottom surface 101a, and around the wall 101b of bottom surface 101a.In the present embodiment, housing 101 is preferably the back iron frame of backlight module 100.
Optical sheet 102 is positioned among housing 101.In the present embodiment, optical sheet 102 is the light guide plate of backlight module 100, there is an exiting surface 102a, incidence surface and multiple side be connected with exiting surface 102a, such as the second side 102b, the first side 102c, the 3rd side 102d and the 4th side 102e (as Figure 1B illustrate).Wherein, the second side 102b of opposite first side 102c is the incidence surface of optical sheet 102; First side 102c is positioned at the relative side of the second side 102b; 3rd side 102d connects the first side 102c and the second side 102b; 4th side 102e is positioned at the relative side of the 3rd side 102d.
Light source 105 arranges the incidence surface (the second side 102b) being adjacent to optical sheet 102.Among the present embodiment, light source 105 is positioned among housing 101, and is adjacent to the second side 102b.By the light of light source 105 outgoing, enter among optical sheet 102 through the second side 102b, and by the outside outgoing of exiting surface 102a of optical sheet 102.Among some embodiments of the present invention, light source 105 can be light emitting diode (Light Emitting Diode; LED), cold-cathode tube (Cold Cathode fluorescent Lamp; CCFL), thermionic-cathode tube (Hot Cathode fluorescent Lamp; HCFL) or other suitable light former.Among the present embodiment, be preferably the light source 105 adopting light emitting diode as backlight module 100.
And in order to avoid light leak, among some embodiments of the present invention, backlight module 100 also comprises a side plate 108, it is close to and is fixed on the first side 102c, there is a reflecting surface 108a in the face of the first side 102c, by inner by optical sheet 102, through the light of the outside outgoing of the first side 102c, then can reflect among optical sheet 102.
Reflector plate 103 is located among housing 101, and between the bottom surface 101a and optical sheet 102 of housing 101.Among some embodiments of the present invention, reflector plate 103 can be a kind of sheet metal; Also can be the metal level that a kind of direct plating is overlying on the bottom surface 101a of housing 101.Among the present embodiment, reflector plate 103 is a kind of sheet metals, has a reflecting surface 103a, in the face of the exiting surface 102a of optical sheet 102 is relative to the surperficial 102f of side.
First blooming piece 104 is located at above optical sheet 102, and in the face of exiting surface 102a, and there is at least one extension, such as the first extension 104a, extends between the wall 101b of housing 101 and the first side 102c of optical sheet 102.Among some embodiments of the present invention, first blooming piece 104 be lie against optical sheet 102 exiting surface 102a on, first extension 104a is stretched out by the edge of the first blooming piece 104, and via bending, itself and exiting surface 102a is made to press from both sides an angle θ, and be placed between the wall 101b of housing 101 and the first side 102c, provide optical sheet 102 thermal expansion among the space 106 reserved.
Although it should be noted that among the present embodiment, the first extension 104a of the first blooming piece 104 and angle θ folded by exiting surface 102a of optical sheet 102, is preferably 90 °.But among some embodiments of the present invention, other mechanism is held extraly again in order to allow space 106, such as light guide plate stop block (not illustrating), first extension 104a of the first blooming piece 104 and angle θ folded by exiting surface 102a of optical sheet 102, can be adjusted to other angle.
Among some embodiments of the present invention, the development length H of the first extension 104a, exceedes 1/2nd of optical sheet 102 thickness T; Maximum can the wall 101b around bottom surface 101a contour (i.e. the real-valued degree of depth equaling housing 101) of essence and housing 101.Among some embodiments of the present invention, the central authorities of the first extension 104a have at least one perforate 104b, contribute to, by the first extension 104a, being fixed on the wall 101b of the first side 102c or housing 101.Such as, when use one-faced tapes 109, pasted by the first extension 104a when being fixed on optical sheet 102 first side 102c, the setting of perforate 104b, what can increase one-faced tapes 109 pastes area.But among other embodiments of the present invention, the first extension 104a, does not establish to any perforate (please refer to Fig. 6).In addition, for the purpose of folding and convenient fixing, between the edge of the first extension 104a and the first blooming piece 104, better roulette (not illustrating) is set.Among one embodiment of the invention, the first extension 104a system, by the one-faced tapes 109 being coated with a mucigel 109b, is attached on the side plate 108 outside the first side 102c (referring again to Figure 1A).Wherein, the length of one-faced tapes 109 or one of them person of width, essence is greater than the development length H of the first extension 104a, or essence is greater than the width of the first extension 104a.Such as, among the present embodiment, the coverage of one-faced tapes 109 is more than the size of the first extension 104a.Wherein, a part of mucigel 109a of one-faced tapes 109, in the face of and be directly attached to the side of the first extension 104a away from side plate 108; Another part mucigel 109b, directly be not attached on the first extension 104a, but be directly attached to part that side plate 108 do not contact with the first extension 104a (such as, a part of mucigel 109b, system is directly attached on side plate 108 by perforate 104b), and then the first extension 104a is urgently attached on side plate 108.
Among the present embodiment, first blooming piece 104 also comprise another second extension 104c (as Figure 1B illustrate), stretched out by the opposite side edge of the first blooming piece 104, after bending, can be placed between the wall 101b of housing 101 and the 3rd side 102d of optical sheet 102 among the space 106 reserved.
It should be noted that backlight module 100 also may comprise other blooming piece in addition.Such as, among the present embodiment, except the first blooming piece 104, backlight module 100 also comprises, the second blooming piece 110 between the first blooming piece 104 and the exiting surface 102a of optical sheet 102.The same with the first blooming piece 104, second blooming piece 110 also have an extension 110a (as Figure 1B illustrate), can to extend by bending between the wall 101b of housing 101 and the first side 102c of optical sheet 102 in the space 106 reserved.The extension 110a of the second blooming piece 110, goodly can't overlap with the first extension 104a of the first blooming piece 104, to avoid the width occupying too many accommodation space 106, and makes originally to keep for the expansion space of optical sheet 102 significantly to reduce.
Among some embodiments of the present invention, the extension 110a of the second blooming piece 110, also can fix by aforesaid one-faced tapes 109.In order to the first extension 104 of the first blooming piece 104 and the extension 110a of the second blooming piece 110 are fixed on side plate 108 simultaneously, the length of one-faced tapes 109, better system across and be covered in the first extension 104 and extension 110a therebetween.And the width of one-faced tapes 109 then essence more than the development length of the first extension 104 and extension 110a.
Refer to Fig. 2, Fig. 2 is a kind of partial structure generalized section with the side light type back light module 200 of narrow border structure that another preferred embodiment according to the present invention illustrates.Wherein, the structure of backlight module 200 is roughly similar to backlight module 100, and difference is only: backlight module 200 adopts different one-faced tapes 209, fixes the first extension 104a.For the purpose of clear description, following icon will use similar elements symbol, indicate identical element.
Among the present embodiment, be used for fixing the first extension 104a in the one-faced tapes 209 of the first side 102c of optical sheet 102, there is the viscose face 209b of coating mucigel 209a.Wherein, viscose face 209b can be a reflective surface, has effect that the side plate 108 that illustrates with Figure 1A is identical, through the light of the outside outgoing of the first side 102c, then can reflect among optical sheet 102.Therefore, can directly omit side plate 108, the first extension 104a is urgently attached on the first side 102c of optical sheet 102.
In addition, refer to Fig. 3, Fig. 3 is according to another preferred embodiment of the present invention, a kind of partial structure generalized section with the side light type back light module 300 of narrow border structure illustrated.Wherein, the structure of backlight module 300 is roughly similar to backlight module 100, and difference is only: backlight module 300 adopts two-sided tape 309 to fix the first extension 104a of the first blooming piece 104 on the first side 102c of optical sheet 102.Among the present embodiment, positive and negative two viscose face 309a and 309b that two-sided tape 309 has, it is coated with mucigel 309c and 309d respectively; Wherein mucigel 309c is attached to the first extension 104a of the first blooming piece 104 in the face of the side of the first side 102c of optical sheet 102, and the size of two-sided tape 309, essence equals the size of extension 104a first extension 104a.
Refer to Fig. 6, Fig. 6 is according to a preferred embodiment more again of the present invention, a kind of partial structure generalized section with the side light type back light module 600 of narrow border structure illustrated.Wherein, the structure of backlight module 600 is roughly similar to backlight module 300, and difference is only: the blooming piece 604 that backlight module 600 adopts, does not arrange any perforate at extension 604a; And extension 604a, being the side plate 608 by being coated with two-sided gum 609a and 609b, being fixed on the first side 102c of optical sheet 102.Among the present embodiment, side plate 608 is coated with the one side 608a of gum 609a, stick in optical sheet 102 the first side 102c on; And side plate 608 is coated with the another side 608b of gum 609b, then the extension 604a of glutinous blooming piece 604.
It should be noted that above-mentioned narrow border structure design, also can be applicable among direct type backlight module.Such as, refer to Fig. 4, Fig. 4 is the structural profile schematic diagram that a kind of employing illustrated according to still another preferred embodiment of the present invention has the direct type backlight module 400 of narrow border structure.Wherein, backlight module 400 comprises: housing 101, optical sheet 102, reflector plate 103, blooming piece 404 and light source 405.
Housing 101 has a bottom surface 101a, and the wall 101b of bottom surface 101a around housing 101.In the present embodiment, housing 101 is preferably the back iron frame of backlight module 400.Optical sheet 102 is positioned among housing 101.In the present embodiment, optical sheet 102 is light guide plate or the diffuser plate of backlight module 400, has an exiting surface 102a, incidence surface and multiple wall be connected with exiting surface 102a, such as the second side 102b and the first side 102c.Wherein the second side 102b is positioned at the relative side of the first side 102c.The incidence surface of optical sheet 102 is the surperficial 102f of the opposite side being positioned at the first side 102a.Light source 405 is between optical sheet 102 and reflector plate 103.By the light of light source 405 outgoing, after optical sheet 102, by the outside outgoing of exiting surface 102a.
Blooming piece 404 is located at above optical sheet 102, and in the face of exiting surface 102a, and there is at least one extension, such as extension 404a and 404b.Extension 404a can be made to extend between the wall 101b of housing 101 and the second side 102b of optical sheet 102 by bending; Extension 404b is then extended between the wall 101b of housing 101 and the first side 102c of optical sheet 102, so to be placed between housing 101 and optical sheet 102 in the space 106 reserved.Among the present embodiment, backlight module 400 is the two-sided tape 309 that employing is shown as depicted in fig. 3, on the second side 102b coming respectively extension 404a and 404b to be fixed on optical sheet 102 and the first side 102c.Because the structure of two-sided tape 309 and its fixed form are specified in Fig. 3, therefore do not repeat at this.
And the backlight module of above-mentioned all embodiments, be no matter side-light type or straight under be backlight module, all can be applied among display element further.Such as please refer to Fig. 5, Fig. 5 is the structural profile schematic diagram that a kind of employing illustrated according to embodiments of the invention has the display 40 of the direct type backlight module 400 of narrow border structure.Wherein, display 40 comprises the direct type backlight module 400 and display floater 41 that Fig. 4 illustrates.Wherein, backlight module 400 comprises housing 101, optical sheet 102, reflector plate 103 and blooming piece 404.
Optical sheet 102 is positioned among housing 101, and has an exiting surface 102a, incidence surface and multiple side, such as the second side 102b and the first side 102c.Wherein, the second side 102b is connected with exiting surface 102a with the first side 102c; And the second side 102b is relative to the first side 102c.The incidence surface of optical sheet 102 is the surperficial 102f of the opposite side being positioned at exiting surface 102a.Reflector plate 103 between housing 101 and optical sheet 102, and in the face of the opposite side of exiting surface 102a.Light source 405 is between optical sheet 102 and reflector plate 103.Blooming piece 404, in the face of exiting surface 102a, has extension 404a and 404b, extends housing 101 respectively and between the second side 102b and the first side 102c.Display floater 41 is arranged at the side of backlight module 400.
According to above-mentioned, embodiments of the invention are to provide a kind of backlight module and application apparatus thereof, and wherein backlight module comprises a blooming piece in the face of backlight module exiting surface.Its edge has an extension, the extensible backboard in backlight module and be used for bearing optical diaphragm optical sheet side between; And by adhesive tape sticking extension, blooming piece can be fixed on the side of optical sheet.
Due to, backboard and be used for bearing optical diaphragm optical sheet side between, be namely the expansion room keeping for optical sheet originally, its bulk is much larger than the thickness of a blooming piece.Therefore, extension is placed among this headspace, except the thickness of blooming piece, too many space can't be taken, also do not need additionally to increase frame size.Add, change the adhesive tape adopting size relatively little, replace the blooming piece location structures such as existing locating pin, backboard accordion wall or hangers, fix blooming piece, not only there is the technical advantage reducing border width, meet at present towards the designing requirement of little frame backlight module.And, due to the coefficient of expansion of optical sheet, generally large than the coefficient of expansion of blooming piece, and blooming piece system is fixed on the side of optical sheet by least one extension; Therefore when operated, blooming sector-meeting is expanded along with the larger optical sheet of the coefficient of expansion, and by synchro-draw, and more smooth.Can't to occur because expansion space is reserved not enough, and by backboard extruding warpage, or the problem such as to tear by hangers, more contribute to the light uniformity of raising backlight module.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claims in the present invention.
Claims (16)
1. a backlight module, is characterized in that, comprising:
One housing;
One optical sheet, is positioned among this housing, and one first side that there is an exiting surface, an incidence surface and be connected with this exiting surface;
One light source, is adjacent to this incidence surface;
One reflector plate, between this housing and this optical sheet, and in the face of the opposite side of this exiting surface;
One first blooming piece, in the face of this exiting surface, have one first extension and extend between this housing and this first side, this first blooming piece has more one second extension, extends between this housing and one the 3rd side of this optical sheet; And
One second blooming piece, between this first blooming piece and this exiting surface, has an extension, extends between this housing and this first side, and does not overlap with this first extension,
Wherein, this first extension is fixed on this first side by a two-sided tape or an one-faced tapes.
2. backlight module according to claim 1, is characterized in that, more comprises side plate and is arranged at this first side, has the reflecting surface in the face of this first side.
3. backlight module according to claim 2, is characterized in that, this one-faced tapes has the coverage exceeding this first extension, and a viscose face of this one-faced tapes is in the face of this side plate.
4. backlight module according to claim 1, is characterized in that, this one-faced tapes has the coverage exceeding this first extension, and a viscose face of this one-faced tapes is a reflective surface.
5. backlight module according to claim 1, is characterized in that, this first extension has a development length, exceedes 1/2nd of a thickness of this optical sheet.
6. backlight module according to claim 1, is characterized in that, this incidence surface of this optical sheet is positioned at the opposite side of this first side.
7. backlight module according to claim 1, is characterized in that, this incidence surface of this optical sheet is positioned at the opposite side of this exiting surface, and this light source is between this optical sheet and this reflector plate.
8. backlight module according to claim 1, is characterized in that, this first extension has a perforate.
9. a display element, is characterized in that, comprising:
One backlight module, comprising:
One housing;
One optical sheet, is positioned among this housing, and has an exiting surface, one first side be connected with this exiting surface and one second side relative to this first side;
One light source, is located between this housing and this optical sheet;
One reflector plate, between this housing and this optical sheet, and in the face of the opposite side of this exiting surface;
One first blooming piece, in the face of this exiting surface, have one first extension, extend between this housing and this first side, this first blooming piece has more one the 3rd extension, extends between this housing and one the 3rd side of this optical sheet; And
One second blooming piece, between this first blooming piece and this exiting surface, has one second extension, extends between this housing and this first side, and does not overlap with this first extension; And
One display floater, is arranged at the side of this backlight module,
This first extension is fixed on this first side by a two-sided tape or an one-faced tapes.
10. display element according to claim 9, is characterized in that, more comprises side plate and is adjacent to this first side, and has the reflecting surface in the face of this first side.
11. display elements according to claim 10, is characterized in that, this one-faced tapes has the scope exceeding this first extension, and a viscose face of this one-faced tapes is in the face of this side plate.
12. display elements according to claim 9, is characterized in that, this one-faced tapes has the scope exceeding this first extension, and a viscose face of this one-faced tapes is a reflective surface.
13. display elements according to claim 9, is characterized in that, this first extension has a development length, exceed 1/2nd of a thickness of this optical sheet.
14. display elements according to claim 9, is characterized in that, this light source is adjacent to this second side.
15. display elements according to claim 9, is characterized in that, this light source is between this optical sheet and this reflector plate.
16. display elements according to claim 9, is characterized in that, this first extension has a perforate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101131283 | 2012-08-28 | ||
| TW101131283A TWI475300B (en) | 2012-08-28 | 2012-08-28 | Backlight module and applications thereof |
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| CN102966887A CN102966887A (en) | 2013-03-13 |
| CN102966887B true CN102966887B (en) | 2015-06-10 |
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| CN104848083B (en) * | 2015-04-07 | 2017-07-28 | 武汉华星光电技术有限公司 | Display device and its backlight module |
| US11907016B2 (en) * | 2021-03-12 | 2024-02-20 | Apple Inc. | Electronic device |
| CN114779528B (en) * | 2022-05-06 | 2024-01-26 | Tcl华星光电技术有限公司 | Backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201211644A (en) * | 2010-09-09 | 2012-03-16 | Au Optronics Corp | Backlight structure and manufacturing method thereof |
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| TWI240122B (en) * | 2004-02-26 | 2005-09-21 | Radiant Opto Electronics Corp | Reflecting structure of direct-type backlight unit |
| TW200827865A (en) * | 2006-12-28 | 2008-07-01 | Au Optronics Corp | Optical component assembly for use in a direct backlight module |
| JP5312919B2 (en) * | 2008-11-27 | 2013-10-09 | 株式会社ジャパンディスプレイ | Liquid crystal display |
| CN201517722U (en) * | 2009-09-28 | 2010-06-30 | 达运精密工业（苏州）有限公司 | Backlight module and display device |
| CN202125822U (en) * | 2011-06-02 | 2012-01-25 | 海尔集团公司 | Edge type LED backlight module |
| TWI457649B (en) * | 2011-07-22 | 2014-10-21 | Au Optronics Corp | Display |
| CN202152969U (en) * | 2011-07-31 | 2012-02-29 | 南京中电熊猫液晶显示科技有限公司 | Down diffuser and side light source LED (Light-Emitting Diode) backlight module thereof |
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| TW201211644A (en) * | 2010-09-09 | 2012-03-16 | Au Optronics Corp | Backlight structure and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
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| TW201409129A (en) | 2014-03-01 |
| CN102966887A (en) | 2013-03-13 |
| TWI475300B (en) | 2015-03-01 |
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