CN101571646A - Backlight module and display device applying same - Google Patents
Backlight module and display device applying same Download PDFInfo
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- CN101571646A CN101571646A CNA2008100950600A CN200810095060A CN101571646A CN 101571646 A CN101571646 A CN 101571646A CN A2008100950600 A CNA2008100950600 A CN A2008100950600A CN 200810095060 A CN200810095060 A CN 200810095060A CN 101571646 A CN101571646 A CN 101571646A
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- light
- guide plate
- backlight module
- light guide
- framework
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Abstract
The invention provides a backlight module and a display device applying the same. The backlight module comprises a frame, a light guide plate and a light source, wherein the frame is provided with a light transmission opening, a first surface and a second surface, and the first surface corresponds to the second surface. The light transmission opening penetrates from the first surface of the frame to the second surface, the frame is provided with an interior edge surface connected with the first surface and the second surface in the light transmission opening, and at least part of the interior edge surface inclines towards a direction in the light transmission opening. The light guide plate is integrally formed with the frame, at least filled in the light transmission opening, and tightly jointed with the interior edge surface of the frame. The light source is arranged at one adjacent side of the light guide plate.
Description
Technical field
The invention relates to a kind of backlight module and use its display device, and particularly relevant for a kind of display device of simplifying the backlight module of making and using it.
Background technology
Can produce the liquid crystal indicator that enriches beautiful figure, owing to have that external form is frivolous, power consumption is few and characteristic such as radiationless pollution, therefore be widely used on the portable information products such as mobile computer, personal digital assistant, simultaneously, also replaced traditional cathode-ray tube (CRT) (Cathode Ray Tube, CRT) display that is applied in desktop PC gradually.
Display device mainly is made up of a display panel and a backlight module.Small-sized display panel uses the backlight module of side-light type mostly.The backlight module polygamy of side-light type places the display panel below, and its formation comprises a light guide plate and a framework at least.The practice of display device is after framework is finished at present, in the mode of assembling light guide plate and other optics is arranged on framework or the corresponding parts.
Yet the production of light guide plate and framework must be produced with the twice processing procedure respectively, and equipment cost is very high; The assembling of light guide plate and framework also derived assembling man-hour and assembly cost, and adopt assembling mode display device structural strength and can't guarantee that display device can not clash into disintegration after falling.In addition, if light guide plate adopts assembling mode and be arranged on the framework, advance and produce optics to look effect not good because of the design of the stuck point of light guide plate and Ka Jiao hinders light easily.Therefore, according to the present framework and the production method of light guide plate, improved space is arranged all on man-hour, cost or life of product.
Summary of the invention
The object of the present invention is to provide a kind of display device that is easy to backlight module and uses it of making.By integrally formed technology with framework and the integrally formed output of light guide plate.So, not only saved assembling man-hour and assembly cost, also promoted backlight module and used the structural strength of its display device.
According to an aspect of the present invention, a kind of backlight module is proposed.Backlight module comprises a framework, a light guide plate and a light source.Framework has a light openings and a corresponding first surface and a second surface.Light openings is through to second surface by the first surface of framework, and framework has an inner peripheral surface and connects first surface and second surface in light openings, and tilts towards the direction in the light openings to the inner peripheral surface of small part.Light guide plate and framework are integrally formed and be filled in light openings at least, light guide plate and with the inner peripheral surface fluid-tight engagement of framework.Light source is arranged at an adjacent side of light guide plate.
According to a further aspect in the invention, a kind of display device is proposed.Display device comprises a backlight module and a display panel.Backlight module comprises a framework, a light guide plate and a light source.Framework has a light openings and a corresponding first surface and a second surface.Light openings is through to second surface by the first surface of framework, and framework has an inner peripheral surface and connects first surface and second surface in light openings, and tilts towards the direction in the light openings to the inner peripheral surface of small part.Light guide plate and framework are integrally formed and be filled in light openings at least, light guide plate and with the inner peripheral surface fluid-tight engagement of framework.Light source is arranged at an adjacent side of light guide plate.Display panel is adjacent to light guide plate, in order to show a picture.
For foregoing of the present invention can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 illustrates the synoptic diagram according to the display device of preferred embodiment of the present invention.
Fig. 2 illustrates the synoptic diagram of the backlight module of display device among Fig. 1.
Fig. 3 illustrates the synoptic diagram of the framework of backlight module among Fig. 1.
Fig. 4 illustrates among Fig. 1 display device along the cut-open view of 1A-1A '.
The cross section profile that Fig. 5 A illustrates the inner peripheral surface of framework is trapezoidal synoptic diagram.
The cross section profile that Fig. 5 B illustrates the inner peripheral surface of framework is the synoptic diagram of taper.
Fig. 6 illustrates the enlarged diagram of Local C among Fig. 3.
The another kind that Fig. 7 illustrates the backstop opening of framework is provided with the synoptic diagram of kenel.
Fig. 8 A illustrates Fig. 7 and ends to stop mouthful cut-open view along 1B-1B ' direction.
Fig. 8 B illustrates the stereographic map that Fig. 8 A ends to stop mouth.
Another of backstop opening that Fig. 9 A illustrates framework is provided with the synoptic diagram of kenel.
Fig. 9 B illustrates the stereographic map that Fig. 9 A ends to stop mouth.
The primary clustering symbol description
100: display device
110: backlight module
112: framework
114: light guide plate
116: the gap
118: light openings
120: display panel
122: first surface
124: second surface
126,134,136: inner peripheral surface
128: reflecting plate
130: brightness enhancement film
132: plaque
138: circuit board
140,142,144: the backstop opening
X, Y, Z1, Z2: direction
Embodiment
The present invention proposes a kind of display device that is easy to backlight module and uses it of making.Backlight module comprises framework and light guide plate, and framework and light guide plate have not only been saved the assembling man-hour and the assembly cost of framework and light guide plate by the integrally formed output of integrally formed technology, have also promoted the structural strength of display device.Below enumerate preferred embodiment and elaborate, so this embodiment only is the embodiment under the invention spirit of the present invention, and the literal of its explanation and icon can't carry out limit to desire protection domain of the present invention.
Please refer to Fig. 1, it illustrates the synoptic diagram according to the display device of preferred embodiment of the present invention, and display device 100 comprises a backlight module 110, a display panel 120 and a circuit board 138.Circuit board 138 preferably is a flexible circuit board, in order to the controlling signal of transmission backlight module 110 with display panel 120.And please refer to Fig. 2 and Fig. 3, and Fig. 2 illustrates the synoptic diagram of the backlight module of display device among Fig. 1, and Fig. 3 illustrates the synoptic diagram of the framework of backlight module among Fig. 1.As shown in Figure 2, backlight module 110 comprises a framework 112, a light guide plate 114 and a light source (not illustrating).As shown in Figure 3, framework 112 has a light openings 118 and a corresponding first surface 122 and a second surface 124 (second surface 124 is illustrated in Fig. 4), and light openings 118 is through to second surface 124 by the first surface 122 of framework 112.Light guide plate 114 and framework 112 are integrally formed and be filled in light openings 118 at least.Light source is arranged at an adjacent side of light guide plate 114, that is to say, light guide plate 114 is not filled up whole light openings 118, only fill up the light openings 118 of part, and expose a gap 116 with an inner side edge of framework 112, light source is arranged in the gap 116, makes the side light inlet of a light of light source from light guide plate 114 by this.Preferably, the material of light guide plate 114 is the plastic material of a high transmission rate, and the light that so can reduce light source is by the luminance loss after the light guide plate 114.Display panel 120 is adjacent to light guide plate 114, in order to show a picture.Please refer to Fig. 4, it illustrates among Fig. 1 display device along the cut-open view of 1A-1A '.Framework 112 has an inner peripheral surface 126 in light openings 118, light guide plate 114 and with inner peripheral surface 126 fluid-tight engagement.Inner peripheral surface 126 connects first surfaces 122 and second surfaces 124, and tilts towards the directions in the light openings 118 to the inner peripheral surface 126 of small part, and in the present embodiment, the cross section profile of inner peripheral surface is a circular arc.
In addition, display device 100 more comprises a reflector plate 128 and a brightness enhancement film 130.Reflector plate 128 is disposed at the below of light guide plate 114, and reflector plate 128 is in order to reflect light to light guide plate 114.Brightness enhancement film 130 is disposed between light guide plate 114 and the display panel 120, and brightness enhancement film 130 usefulness are so that the light concentrated area is emitted to display panel 120.
In addition, display device 100 more comprises a plaque 132.Plaque 132 is arranged at framework 112 tops or whole first surfaces 122, and to reach aesthetic property, plaque 132 also has the effect of protection first surface 122 in order to the clumsy boundary of 120 of shadow frame 112 and display panels.
In the present embodiment, framework 112 is a metal sheet, and the circular arc that cross section profile presented of inner peripheral surface 126 is by after a flanging bending of metal sheet and making flanging be close to metal sheet, the profile that presents in the turnover place.In addition, the cross section profile of inner peripheral surface also can different profiles present, and for example is one trapezoidal 134 or one taper 136.Please refer to Fig. 5 A and Fig. 5 B, the cross section profile that Fig. 5 A illustrates the inner peripheral surface of framework is trapezoidal synoptic diagram, and the cross section profile that Fig. 5 B illustrates the inner peripheral surface of framework is the synoptic diagram of taper.So, no matter which kind of exterior design is inner peripheral surface have, and inserts the space that both sides tilt in the inner peripheral surface by light guide plate and keeping a firm hand on framework 112, and to reach the effect of backstop light guide plate 114 toward Z1 and the displacement of Z2 direction, Z1 and Z2 direction illustrate as Fig. 4.
In addition, the production method of the inner peripheral surface of framework 112 can adopt impact style, and the bender's legal system of arranging in pairs or groups is again made the inner peripheral surface 126 that cross section profile is a circular arc.Perhaps, after framework 112 completed with punching press or die casting mode, arrange in pairs or groups roll extrusion or skiver's method were produced predetermined dip plane in inner peripheral surface again, and the dip plane for example is plane or arcwall face.Moreover framework 112 is with impact style, and the mould scheme of arranging in pairs or groups simultaneously once forms framework and predetermined inner peripheral surface.
In addition, trend or angle that the both sides of inner peripheral surface tilt also can be different, and for example, cross section profile is trapezoidal inner peripheral surface 134 shown in Fig. 5 A, and its two side plane can have different angles of inclination; Perhaps, the tapered inner peripheral surface 136 of cross section profile shown in Fig. 5 B, its two side plane can have different angles of inclination.So, light openings 118 is not equal to the openings of sizes of light openings 118 in second surface 124 in fact in the openings of sizes of first surface 122.
Please refer to Fig. 6, it illustrates the enlarged diagram of Local C among Fig. 3.The shape of light openings 118 is essentially a rectangle (as shown in Figure 3), and backstop opening 140 is through to second surface 124 by the first surface 122 of framework 112, and is arranged at the corner corresponding to rectangle.So, the displacement to light guide plate 114 past X and Y direction has produced the backstop effect simultaneously.In addition, if the inner peripheral surface of the present embodiment of arranging in pairs or groups has again just produced the effect of backstop light guide plate 114 toward X, Y, Z1 and the displacement of Z2 direction simultaneously.In addition, in the present embodiment, the backstop opening is that the first surface 122 by framework 112 is through to second surface 124, yet, in other enforcement aspect, backstop opening 140 also can not run through first surface 122 and second surface 124, and the form (not illustrating) that changes with groove is arranged at first surface 122 and second surface 124 one of them person.In addition, the quantity of backstop opening 140 can be not only one, preferably is two, is arranged at respectively on any two corners of light openings.
In addition, the backstop opening also can be arranged on corner other position in addition, for example, please refer to Fig. 7, and its another kind that illustrates the backstop opening of framework is provided with the synoptic diagram of kenel.Backstop opening 142 is adjacent to an edge of light openings 118, for example is the edge on the left side.Please refer to Fig. 8 A and Fig. 8 B, Fig. 8 A illustrates Fig. 7 and ends to stop mouthful cut-open view along 1B-1B ' direction, and Fig. 8 B illustrates the stereographic map that Fig. 8 A ends to stop mouth.Shown in Fig. 8 A, light guide plate 114 parts extend to backstop opening 142 and fill up backstop opening 142.Shown in Fig. 8 B, backstop opening 142 backstops light guide plate 114 toward X and the displacements of Y direction.So, backstop opening 142 inner peripheral surface 126 of arranging in pairs or groups again is set, to reach the backstop effect of light guide plate 114 toward X, Y, Z1 and Z2 direction.
Please refer to Fig. 9 A and Fig. 9 B, another of backstop opening that Fig. 9 A illustrates framework is provided with the synoptic diagram of kenel, and Fig. 9 B illustrates the stereographic map that Fig. 9 A ends to stop mouthful.Shown in Fig. 9 B, an edge of backstop opening 144 contiguous light openings 118 for example is leftmost edge, and is through to second surface 124 by the first surface 122 of framework 112 that light guide plate 114 parts extend to backstop opening 142 and fill up backstop opening 144.Therefore, backstop opening 144 backstops light guide plate 114 effect toward X and the displacement of Y direction.That is to say that the setting of backstop opening 144 inner peripheral surface 126 of arranging in pairs or groups has again produced the backstop effect of past X, Y, Z1 and the displacement of Z2 direction to light guide plate 114.
In addition, backstop opening 142 and 144 quantity can be not only one, preferably are a plurality of, are arranged at respectively on each edge of light openings 118.Perhaps, an edge of light openings can once be provided with a plurality of backstop openings 142 and 144.
In the present embodiment, backstop opening 140 and 142 opening shape are rectangle, and the opening shape of backstop opening 144 is circular.Yet in other embodiments, the opening shape of backstop opening is not limited to rectangle or circle, and the opening shape of backstop opening also can be irregularly shaped.Further say, if can the backstop light guide plate 114 backstop openings toward X, Y, Z1 and Z2 displacement, its quantity, the position is set and opening shape can change collocation, not limited to by the description of present embodiment.
The disclosed making of the above embodiment of the present invention is easy to backlight module and uses its display device, has multiple advantages, below only enumerates the part advantage and is described as follows:
1). framework and light guide plate are integrally formed outputs, have not only saved assembling man-hour and assembly cost, have also promoted the structural strength of display device.
2). framework and light guide plate are integrally formed outputs, have saved stuck point and the Ka Jiao of light guide plate assembling usefulness, make optics look to imitate preferable.
3). the setting of backstop opening can the backstop light guide plate toward X, Y, Z1 and the displacement of Z2 direction, more strengthened the steadiness of light guide plate and framework.
In sum, though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (15)
1, a kind of backlight module comprises:
One framework, have a light openings and a corresponding first surface and a second surface, wherein, this light openings is through to this second surface by this first surface of this framework, this framework has an inner peripheral surface and connects this first surface and this second surface in this light openings, and the direction in to this inner peripheral surface of small part towards this light openings tilts;
One light guide plate, integrally formed and be filled in this light openings at least with this framework, this light guide plate and with this inner peripheral surface fluid-tight engagement of this framework; And
One light source is arranged at an adjacent side of this light guide plate.
2, backlight module as claimed in claim 1 is characterized in that: a cross section profile of this inner peripheral surface is a circular arc.
3, backlight module as claimed in claim 2 is characterized in that: this framework is a metal sheet, and wherein this circular arc is close to behind this metal sheet in the profile of turning point for a flanging bending of this metal sheet.
4, backlight module as claimed in claim 1 is characterized in that: this light openings is not equal to the openings of sizes of this light openings in this second surface in the openings of sizes of this first surface.
5, backlight module as claimed in claim 4 is characterized in that: a cross section profile of this inner peripheral surface is a taper or trapezoidal.
6, backlight module as claimed in claim 1 is characterized in that: this framework is a stamping parts or a cast member.
7, backlight module as claimed in claim 1 is characterized in that: the material of this light guide plate is the plastic material of a high transmission rate.
8, backlight module as claimed in claim 1 is characterized in that: this framework more comprises:
One backstop opening is adjacent to this light openings, and wherein this light guide plate partly extends to this backstop opening and fills up this backstop opening.
9, backlight module as claimed in claim 8 is characterized in that: this light openings be shaped as a rectangle, this backstop opening the corner of position corresponding to this rectangle be set.
10, backlight module as claimed in claim 8 is characterized in that: an edge of contiguous this light openings of this backstop opening.
11, backlight module as claimed in claim 8 is characterized in that: this backstop opening is through to this second surface by this first surface of this framework.
12, backlight module as claimed in claim 1, it is characterized in that: this light guide plate is filled up this light openings of part, and having a gap with an inner side edge of this framework, this light source is arranged in this gap, makes the side light inlet of a light of this light source from this light guide plate by this.
13, a kind of display device comprises:
Just like each described backlight module among the claim 1-12, and
One display panel is adjacent to the light guide plate of this backlight module, in order to show a picture.
14, display device as claimed in claim 13 is characterized in that: this display panel is positioned at the top of this light guide plate, and this display device more comprises:
One reflector plate is disposed at the below of this light guide plate, and this reflector plate is in order to reflect this light to this light guide plate.
15, display device as claimed in claim 13 is characterized in that: this display panel is positioned at the top of this light guide plate, and this display device more comprises:
(Brightness enhancement film BEF), is disposed between this light guide plate and this display panel one brightness enhancement film, and this brightness enhancement film is with so that this light concentrated area is emitted to this display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100950600A CN101571646A (en) | 2008-04-28 | 2008-04-28 | Backlight module and display device applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100950600A CN101571646A (en) | 2008-04-28 | 2008-04-28 | Backlight module and display device applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571646A true CN101571646A (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100950600A Pending CN101571646A (en) | 2008-04-28 | 2008-04-28 | Backlight module and display device applying same |
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|---|---|
| CN (1) | CN101571646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254487A (en) * | 2010-05-18 | 2011-11-23 | 博西华电器（江苏）有限公司 | Display device of household electrical appliance |
| CN114127626A (en) * | 2019-05-08 | 2022-03-01 | 弗莱克英纳宝有限公司 | Display with reduced frame |
-
2008
- 2008-04-28 CN CNA2008100950600A patent/CN101571646A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254487A (en) * | 2010-05-18 | 2011-11-23 | 博西华电器（江苏）有限公司 | Display device of household electrical appliance |
| CN114127626A (en) * | 2019-05-08 | 2022-03-01 | 弗莱克英纳宝有限公司 | Display with reduced frame |
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Open date: 20091104 |