CN102966887A - Backlight module and display element - Google Patents

Backlight module and display element Download PDF

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Publication number
CN102966887A
CN102966887A CN201210431751XA CN201210431751A CN102966887A CN 102966887 A CN102966887 A CN 102966887A CN 201210431751X A CN201210431751X A CN 201210431751XA CN 201210431751 A CN201210431751 A CN 201210431751A CN 102966887 A CN102966887 A CN 102966887A
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CN
China
Prior art keywords
extension
backlight module
optical sheet
housing
blooming piece
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Granted
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CN201210431751XA
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Chinese (zh)
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CN102966887B (en
Inventor
王耀祥
范光宇
吕治宇
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AU Optronics Corp
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AU Optronics Corp
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Publication of CN102966887A publication Critical patent/CN102966887A/en
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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

Backlight module and display element
Technical field
The invention relates to a kind of backlight module and application structure thereof, and particularly relevant for a kind of backlight module and application structure thereof with narrow border structure.
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).Yet liquid crystal display is a kind of non-self luminous flat-panel screens, needs the outer backlight that adds or side light source provides illumination.Therefore, all can be by a backlight module as light source in liquid crystal display, by the illumination of this backlight module high brightness and high uniformity so that liquid crystal display can efficiently demonstrate the picture of high image quality.
Existing mould backlight generally comprises light source, backboard, optical sheet and blooming piece.Wherein, light source and optical sheet system places among the backboard; Blooming piece then keeps flat and is stacked on the optical sheet, and wears the mode of the hangers at blooming piece edge by locating pin (pin) or backboard accordion wall, is fixed.Yet because, need to reserve the thermal expansion space between blooming piece and the backboard, otherwise the blooming sector-meeting is because of the extruding warpage, and affects image quality.Add as preventing that hangers from being torn because blooming piece expands, one fixed width also must be stayed by the hangers place that wears locating pin (pin) or backboard accordion wall.So make backlight module be used for hiding the frame of non-visible area, can utilize the space effectively to reduce, and not meet present designing requirement towards little frame backlight module.
Therefore, the backlight module that a kind of novelty need to be provided is arranged, can effectively reduce the size of the location structure of blooming piece, the problem that can't effectively reduce to solve existing backlight module frame size is promoted the display quality of liquid crystal display simultaneously.
Summary of the invention
The present invention proposes a kind of backlight module and display element, the problem that can't effectively reduce to solve existing backlight module frame size.
One aspect of the present invention is that a kind of backlight module is being provided, and comprising: housing, optical sheet, light source, reflector plate and the first blooming piece.Optical sheet is positioned among the housing, and has an exiting surface, one first side that is connected with exiting surface and with respect to one second side of the first side.Light source is located between housing and the optical sheet.Reflector plate is between housing and optical sheet, and in the face of the opposite side of exiting surface.The 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 adhesive tape or a single face adhesive tape and is fixed on the first side.
Among one embodiment of the invention, backlight module more comprises the side plate that is fixed in the first side, has the reflecting surface in the face of the first side.Among one embodiment of the invention, the coverage of this single face adhesive tape surpasses the first extension, and the viscose face of single face adhesive tape is in the face of side plate.
Among one embodiment of the invention, the coverage of single face adhesive tape surpasses the first extension, and the viscose face of single face adhesive tape is reflective surface.
Among one embodiment of the invention, the development length of the first extension, surpass optical sheet thickness 1/2nd.
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 does not overlap with the first extension.
Among one embodiment of the invention, the first blooming piece has more one the 3rd extension, extends between one the 3rd side of this housing and this optical sheet.
Among one embodiment of the invention, the first extension has a perforate.
Another aspect of the present invention is that a kind of display element is being provided, and 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 the housing, and has an exiting surface, one first side that is connected with exiting surface and with respect to one second side of the first side.Light source is located between housing and the optical sheet.Reflector plate is between housing and optical sheet, and in the face of the opposite side of exiting surface.The first blooming piece has the first extension in the face of exiting surface, extends between housing and the first side.Display floater is arranged at a side of the exiting surface of the first blooming piece.
Among one embodiment of the invention, extension is attached on the first side by two-sided tape.
Among one embodiment of the invention, extension is attached on the first side by the single face adhesive tape.
Among one embodiment of the invention, backlight module more comprises the side plate that is fixed in 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 single face adhesive tape surpasses the first extension, and the viscose face of single face adhesive tape is in the face of side plate.
Among one embodiment of the invention, the coverage of single face adhesive tape surpasses the first extension, and the viscose face of single face adhesive tape is reflective surface.
Among one embodiment of the invention, the development length of the first extension surpasses 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 the 3rd side of housing and optical sheet.
Among one embodiment of the invention, the first extension has perforate.
According to above-mentioned, embodiments of the invention provide a kind of backlight module and application apparatus thereof, wherein backlight module comprises one in the face of the blooming piece of backlight module exiting surface, and the blooming piece edge has an extension, extensible in backlight module backboard and be used between the side of optical sheet of bearing optical diaphragm; And by the adhesive tape sticking extension, blooming piece can be fixed on the side of optical sheet.
Because, between the side of backboard and optical sheet, originally just be reserved with the thermal expansion space, and the thickness of blooming piece and adhesive tape is quite thin.Therefore, the extension that adopts adhesive tape will extend between backboard and the optical sheet side is fixed, and can't additionally increase the frame size.Not only have the technical advantage that reduces border width, meet present designing requirement towards little frame backlight module.And, because the coefficient of expansion of optical sheet is general larger than the coefficient of expansion of blooming piece.If the blooming piece extension is fixed between the side of backboard and optical sheet, blooming piece will expand along with the larger optical sheet of the coefficient of expansion, by synchro-draw, and more smooth.Can't make blooming piece occur to reserve not enoughly because of the expansion space, and be subjected to backboard extruding warpage, or the problem such as be subjected to that hangers is torn.Whereby, more can improve the problem that ripple (film waving) because of optical sheet causes image quality light and shade inequality, help to improve the light uniformity of 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.
Description of drawings
Figure 1A is according to one embodiment of the invention, a kind of structural profile schematic diagram with side light type back light module of narrow border structure that illustrates.
Figure 1B is the part perspective view of the backlight module that illustrates according to Figure 1A.
Fig. 2 is according to another preferred embodiment of the present invention, a kind of partial structure generalized section with side light type back light module of narrow border structure that illustrates.
Fig. 3 is according to another preferred embodiment of the present invention, a kind of partial structure generalized section with side light type back light module of narrow border structure that illustrates.
Fig. 4 is that a kind of employing that illustrates has the structural profile schematic diagram of the direct type backlight module of narrow border structure according to an again preferred embodiment of the present invention.
Fig. 5 is according to a preferred embodiment of the present invention, and a kind of employing that illustrates has the structural profile schematic diagram of display of the direct type backlight module of narrow border structure.
Fig. 6 is according to an again again preferred embodiment of the present invention, a kind of partial structure generalized section with side light type back light module of narrow border structure that illustrates.
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 102c: the first side
102d: the 3rd side 102e: the 4th side
102f: surface 103: reflector plate
103a: 104: the first blooming pieces of reflecting surface
104a: the first extension 104b: perforate
104c: the second extension 105: light source
106: space 108: side plate
108a: reflecting surface 109: single face adhesive tape
109a: part mucigel 109b: another part mucigel
110: the second blooming piece 110a: extension
200: side light type back light module
209: single face adhesive tape 209a: mucigel
209b: viscose face 300: side light type back light module
309: two-sided tape 309a: the 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
The specific embodiment
The present invention is providing a kind of backlight module with narrow border structure, the problem that can't effectively reduce to solve existing backlight module frame size.For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularly several, have the backlight module of narrow border structure, and the aobvious view apparatus of using this kind backlight module is as preferred embodiment, and cooperate appended graphicly, 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 side light type back light module 100 of narrow border structure that illustrates.Figure 1B is the part perspective view of the backlight module 100 that illustrates according to Figure 1A.Wherein, Figure 1A is roughly illustrated along the tangent line S of Figure 1B.But for the purpose of clear the description, Figure 1B does not illustrate all elements of backlight module 100, does not add and illustrates but omit portion of element.
Backlight module 100 comprises: housing 101, optical sheet 102, reflector plate 103, the 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 the housing 101.In the present embodiment, optical sheet 102 is the LGP of backlight module 100, have an exiting surface 102a, incidence surface and a plurality of side that is connected with exiting surface 102a, for example the second side 102b, the first side 102c, the 3rd side 102d and the 4th side 102e (illustrating such as Figure 1B).Wherein, the second side 102b of relative the first side 102c is the incidence surface of optical sheet 102; The first side 102c is positioned at the relative side of the second side 102b; The 3rd side 102d connects the first side 102c and the second side 102b; The 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) that is adjacent to optical sheet 102.Among present embodiment, light source 105 is positioned among the housing 101, and is adjacent to the second side 102b.By the light of 105 outgoing of light source, pass the second side 102b and enter among the optical sheet 102, 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 present embodiment, be preferably and adopt light emitting diode as the light source 105 of backlight module 100.
And for fear of light leak, among some embodiments of the present invention, backlight module 100 also comprises a side plate 108, its vicinity also is fixed on the first side 102c, has one in the face of the reflecting surface 108a of the first side 102c, can pass the light of the outside outgoing of the first side 102c with by optical sheet 102 inside, reflect into again among the optical sheet 102.
Reflector plate 103 is located among the housing 101, and between the bottom surface of housing 101 101a and optical sheet 102.Among some embodiments of the present invention, reflector plate 103 can be a kind of sheet metal; Also can be the metal level of a kind of direct plating on the 101a of the bottom surface of housing 101.Among present embodiment, reflector plate 103 is a kind of sheet metals, has a reflecting surface 103a, faces the surperficial 102f of the relative side of exiting surface 102a of optical sheet 102.
The first blooming piece 104 is located at optical sheet 102 tops, and in the face of exiting surface 102a, and has at least one extension, and the first extension 104a for example extends between the first side 102c of the wall 101b of housing 101 and optical sheet 102.Among some embodiments of the present invention, the first blooming piece 104 is to lie against on the exiting surface 102a of optical sheet 102, the first extension 104a then is that the edge by the first blooming piece 104 stretches out, and via bending, make itself and exiting surface 102a press from both sides an angle θ, and be placed between the wall 101b and the first side 102c of housing 101, provide among the optical sheet space that 102 thermal expansions are reserved 106.
Although it should be noted that among present embodiment, the angle θ that the first extension 104a of the first blooming piece 104 and the exiting surface 102a of optical sheet 102 are folded is preferably 90 °.But among some embodiments of the present invention, in order to allow space 106 hold extraly again other mechanism, LGP stop block (not illustrating) for example, the angle θ that the first extension 104a of the first blooming piece 104 and the exiting surface 102a of optical sheet 102 are folded can be adjusted to other angle.
Among some embodiments of the present invention, the development length H of the first extension 104a surpasses 1/2nd of optical sheet 102 thickness T; But the wall 101b around bottom surface 101a of maximum essence and housing 101 contour (being the real-valued degree of depth that equals housing 101).Among some embodiments of the present invention, the central authorities of the first extension 104a have at least one perforate 104b, help the first extension 104a is fixed on the wall 101b of the first side 102c or housing 101.For example, when using single face adhesive tape 109, the first extension 104a is pasted when being fixed in optical sheet 102 first side 102c, the setting of perforate 104b can increase the area that pastes of single face adhesive tape 109.But among other embodiment 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, the better roulette (not illustrating) that arranges.Among one embodiment of the invention, the first extension 104a is by the single face adhesive tape 109 that is coated with a mucigel 109b, is attached on the side plate 108 in the first side 102c outside (referring again to Figure 1A).Wherein, one of them person of the length of single face adhesive tape 109 or 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.For example, among present embodiment, the coverage of single face adhesive tape 109 surpasses the size of the first extension 104a.Wherein, a part of mucigel 109a of single face adhesive tape 109, in the face of and directly be attached to the first extension 104a away from a side of side plate 108; Another part mucigel 109b, directly be not attached on the first extension 104a, but (for example directly be attached to part that side plate 108 do not contact with the first extension 104a, a part of mucigel 109b, system directly is attached on the side plate 108 by perforate 104b), and then the first extension 104a urgently is attached on the side plate 108.
Among present embodiment, the first blooming piece 104 also comprises another second extension 104c (illustrating such as Figure 1B), opposite side edge by the first blooming piece 104 stretches out, after bending, can be placed among the space 106 of reserving between the 3rd side 102d of the wall 101b of housing 101 and optical sheet 102.
It should be noted that in addition backlight module 100 also may comprise other blooming piece.For example, among present embodiment, except the first blooming piece 104, backlight module 100 also comprises, the second blooming piece 110 between the exiting surface 102a of the first blooming piece 104 and optical sheet 102.The same with the first blooming piece 104, the second blooming piece 110 also has an extension 110a (illustrating such as Figure 1B), can extend by bending in the space 106 of reserving between the first side 102c of the wall 101b of housing 101 and optical sheet 102.The extension 110a of the second blooming piece 110, better can't the overlapping with the first extension 104a of the first blooming piece 104 to avoid occupying the width of too many accommodation space 106, originally keeps for the expansion space of optical sheet 102 significantly to reduce and make.
Among some embodiments of the present invention, the extension 110a of the second blooming piece 110 also can fix by aforesaid single face adhesive tape 109.For the first extension 104 of the first blooming piece 104 and the extension 110a of the second blooming piece 110 are fixed on the side plate 108 simultaneously, the length of single face adhesive tape 109, better system across and be covered in the first extension 104 and extension 110a between the two.And the width of single face adhesive tape 109 then essence surpasses the development length of the first extension 104 and extension 110a.
See also Fig. 2, Fig. 2 is a kind of partial structure generalized section with 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 only is: backlight module 200 adopts different single face adhesive tapes 209, fixes the first extension 104a.For the purpose of clear the description, following icon will use the similar elements symbol, indicate identical element.
Among present embodiment, be used for fixing the first extension 104a in the single face adhesive tape 209 of the first side 102c of optical sheet 102, have the viscose face 209b of coating mucigel 209a.Wherein, viscose face 209b can be a reflective surface, has the identical effect of side plate 108 that illustrates with Figure 1A, can with passing the light of the outside outgoing of the first side 102c, reflect among the optical sheet 102 again.Therefore, can directly omit side plate 108, the first extension 104a urgently is attached on the first side 102c of optical sheet 102.
In addition, see also Fig. 3, Fig. 3 is according to another preferred embodiment of the present invention, a kind of partial structure generalized section with side light type back light module 300 of narrow border structure that illustrates.Wherein, the structure of backlight module 300 is roughly similar to backlight module 100, and difference only is: 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 present embodiment, positive and negative two viscose face 309a and 309b that two-sided tape 309 has, it is coated with respectively mucigel 309c and 309d; 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, and essence equals the size of extension 104a the first extension 104a.
See also Fig. 6, Fig. 6 is according to an again again preferred embodiment of the present invention, a kind of partial structure generalized section with side light type back light module 600 of narrow border structure that illustrates.Wherein, the structure of backlight module 600 is roughly similar to backlight module 300, and difference only is: the blooming piece 604 that backlight module 600 adopts does not arrange any perforate at extension 604a; And extension 604a is by the side plate 608 that is coated with two- sided gum 609a and 609b, is fixed on the first side 102c of optical sheet 102.Among 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 the direct type backlight module.For example, see also Fig. 4, Fig. 4 is the structural profile schematic diagram that a kind of employing that an again preferred embodiment according to the present invention illustrates 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 around the wall 101b of the bottom surface 101a of housing 101.In the present embodiment, housing 101 is preferably the back iron frame of backlight module 400.Optical sheet 102 is positioned among the housing 101.In the present embodiment, optical sheet 102 is LGP or the diffuser plate of backlight module 400, has an exiting surface 102a, incidence surface and a plurality of wall that is connected with exiting surface 102a, for example 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 that is positioned at the opposite side of the first side 102a.Light source 405 is between optical sheet 102 and reflector plate 103.By the light of 405 outgoing of light source, pass after the optical sheet 102, by the outside outgoing of exiting surface 102a.
Blooming piece 404 is located at optical sheet 102 tops, and faces exiting surface 102a, and has at least one extension, for example extension 404a and 404b.By bending extension 404a is extended between the second side 102b of the wall 101b of housing 101 and optical sheet 102; Extension 404b is then extended between the first side 102c of the wall 101b of housing 101 and optical sheet 102, and then be placed in the space 106 of reserving between housing 101 and the optical sheet 102.Among present embodiment, backlight module 400 is to adopt the two-sided tape 309 that illustrates such as Fig. 3, comes respectively extension 404a and 404b to be fixed on the second side 102b and the first side 102c of optical sheet 102.Since the structure of two-sided tape 309 with and fixed form be specified in Fig. 3, so do not give unnecessary details at this.
And the backlight module of above-mentioned all embodiment, no matter be side-light type or straight under be backlight module, all can further be applied among the display element.For example please refer to Fig. 5, Fig. 5 is the structural profile schematic diagram of display 40 that has the direct type backlight module 400 of narrow border structure according to a kind of employing that embodiments of the invention illustrate.Wherein, display 40 comprises direct type backlight module 400 and the 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 the housing 101, and has an exiting surface 102a, incidence surface and a plurality of side, for example the second side 102b and the first side 102c.Wherein, the second side 102b be connected side 102c and be connected with exiting surface 102a; And the second side 102b is with respect to the first side 102c.The incidence surface of optical sheet 102 is the surperficial 102f that is positioned at the opposite side of exiting surface 102a.Reflector plate 103 is 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 has extension 404a and 404b in the face of exiting surface 102a, extends respectively between housing 101 and the second side 102b and the first side 102c.Display floater 41 is arranged at a side of backlight module 400.
According to above-mentioned, embodiments of the invention provide a kind of backlight module and application apparatus thereof, and wherein backlight module comprises one in the face of the blooming piece of backlight module exiting surface.Its edge has an extension, extensible in backlight module backboard and be used between the side of optical sheet of bearing optical diaphragm; And by the adhesive tape sticking extension, blooming piece can be fixed on the side of optical sheet.
Because, backboard be used between the side of optical sheet of bearing optical diaphragm, script namely is the thermal expansion space of keeping for optical sheet, 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, can't takies too many space, also do not need additionally to increase the frame size.Add, change the adhesive tape that adopts the size less, replace the blooming piece location structures such as existing locating pin, backboard accordion wall or hangers, fix blooming piece, not only have the technical advantage that reduces border width, meet present designing requirement towards little frame backlight module.And because the coefficient of expansion of optical sheet is general larger than the coefficient of expansion of blooming piece, and blooming piece system is fixed on the side of optical sheet by at least one extension; Therefore when operation, the blooming sector-meeting is along with the larger optical sheet expansion of the coefficient of expansion, and by synchro-draw, and more smooth.Can't occur to reserve not enoughly because of the expansion space, and be subjected to backboard extruding warpage, or the problem such as be subjected to that hangers is torn, more help to improve the light uniformity of backlight module.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of claim of the present invention.

Claims (22)

1. a backlight module is characterized in that, comprising:
One housing;
One optical sheet is positioned among this housing, and one first side that has 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; And
One first blooming piece in the face of this exiting surface, has one first extension and extends between this housing and this first side.
2. backlight module according to claim 1 is characterized in that, this first extension is fixed on this first side by a two-sided adhesive tape or a single face adhesive tape.
3. backlight module according to claim 2 is characterized in that, comprises that more side plate is arranged at this first side, has the reflecting surface in the face of this first side.
4. backlight module according to claim 3 is characterized in that, this single face adhesive tape has the coverage above this first extension, and a viscose face of this single face adhesive tape is in the face of this side plate.
5. backlight module according to claim 2 is characterized in that, this single face adhesive tape has the coverage above this first extension, and a viscose face of this single face adhesive tape is a reflective surface.
6. backlight module according to claim 1 is characterized in that, this first extension has a development length, surpass this optical sheet a thickness 1/2nd.
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 first side.
8. 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.
9. backlight module according to claim 1 is characterized in that, more comprises one second blooming piece, between this first blooming piece and this exiting surface, have an extension, extend between this housing and this first side, and do not overlap with this first extension.
10. backlight module according to claim 1 is characterized in that, this first blooming piece has more one second extension, extends between one the 3rd side of this housing and this optical sheet.
11. backlight module according to claim 1 is characterized in that, this first extension has a perforate.
12. a display element is characterized in that, comprising:
One backlight module comprises:
One housing;
One optical sheet is positioned among this housing, and has an exiting surface, one first side that is connected with this exiting surface and with respect to one second side of 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; And
One first blooming piece in the face of this exiting surface, has one first extension, extends between this housing and this first side; And
One display floater is arranged at a side of this backlight module.
13. display element according to claim 12 is characterized in that, this extension is fixed on this first side by a two-sided adhesive tape or a single face adhesive tape.
14. display element according to claim 13 is characterized in that, comprises that more side plate is adjacent to this first side, and has the reflecting surface in the face of this first side.
15. display element according to claim 14 is characterized in that, this single face adhesive tape has the scope above this first extension, and a viscose face of this single face adhesive tape is in the face of this side plate.
16. display element according to claim 13 is characterized in that, this single face adhesive tape has the scope above this first extension, and a viscose face of this single face adhesive tape is a reflective surface.
17. display element according to claim 12 is characterized in that, this first extension has a development length, surpass this optical sheet a thickness 1/2nd.
18. display element according to claim 12 is characterized in that, this light source is adjacent to this second side.
19. display element according to claim 12 is characterized in that, this light source is between this optical sheet and this reflector plate.
20. display element according to claim 12 is characterized in that, more comprises one second blooming piece, between this first blooming piece and this exiting surface, have one second extension, extend between this housing and this first side, and do not overlap with this first extension.
21. display element according to claim 12 is characterized in that, this first blooming piece has more one the 3rd extension, extends between one the 3rd side of this housing and this optical sheet.
22. display element according to claim 12 is characterized in that, this first extension has a perforate.
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