CN100359389C - Backlight module structure - Google Patents
Backlight module structure Download PDFInfo
- Publication number
- CN100359389C CN100359389C CNB2005100229346A CN200510022934A CN100359389C CN 100359389 C CN100359389 C CN 100359389C CN B2005100229346 A CNB2005100229346 A CN B2005100229346A CN 200510022934 A CN200510022934 A CN 200510022934A CN 100359389 C CN100359389 C CN 100359389C
- Authority
- CN
- China
- Prior art keywords
- light
- emitting diode
- light emitting
- modular structure
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The present invention discloses a backlight module structure used for reducing the dark band areas of corners. Two close light emitting diodes are arranged near a light guiding board in the backlight module structure, the light emitting surface of each light emitting diode is outwards inclined with a preset angle, wherein an outside included angle extending from two light emitting surfaces of the two light emitting diodes is between 90 DEG and 180 DEG.
Description
Technical field
The present invention relates to a kind of backlight modular structure, particularly relate to a kind of light emitting diode (LED) backlight modular structure that reduces blanking bar zone, corner.
Background technology
Backlight module is LCD (Liquid Crystal Display; LCD) one of fundamental parts.Because liquid crystal itself can be not luminous, needing provides required light source by backlight module.The principle of operation of backlight module is via the light guiding of light guide plate with backlight, causes into planar light source, guarantees the homogeneity of brightness.The backlight that backlight module is commonly used for example has cold cathode fluorescent lamp and light emitting diode etc.Though be to be main flow with the cold cathode fluorescent lamp at present, yet the demand of light emitting diode increased with day.Be compared to cold cathode fluorescent lamp, advantage such as light emitting diode has environmental protection, volume is little, the life-span is long, driving is easy, power consumption is few and vibration strength is good.
Because light emitting diode is a pointolite, in the time of in being applied in the LED-backlit modular structure, often because of the relation of module overall dimensions and configuration, the light-emitting area that adds light emitting diode is apart from (the Active Area of the active region on the light guide plate; Be the viewing area) near excessively, thereby between two adjacent light emitting diodes, cause the shade picture of corner blanking bar.Please refer to Fig. 1, it illustrates the synoptic diagram of the blanking bar of existing LCD.Existing LCD comprises the rectangle framework 102 with four continuous sides; And be arranged on wherein light emitting diode 10 and the light emitting diode 12 on the side of 102 4 continuous sides of rectangle framework. Light emitting diode 10 and 12 have a spacing, and have dispersion angle A1 and A2 respectively, and wherein dispersion angle A1 and A2 generally are between 90 degree and 110 degree.As shown in Figure 1, when light emitting diode 10 and 12 during very near the active region of LCD, light emitting diode 10 and 12 s' blanking bar zone, corner 30 is just very obvious.Though with light emitting diode 10 and 12 and the distance of active region widen blanking bar zone, corner 30 is dwindled, yet this kind way can weaken light emitting diode 10 and 12 and be radiated at light intensity on the active region, thereby needs to use the bigger light emitting diode of power.In addition, light emitting diode 10 and 12 and the distance of active region bigger, then need use the larger area light guide plate, not only cause the increase of production cost, more can't effectively utilize the limited space of product.
Summary of the invention
Therefore, one aspect of the present invention is providing a kind of backlight modular structure exactly, and the outward-dipping predetermined angle of light-emitting area by with two next-door neighbours' light emitting diode reduces the generation in blanking bar zone, corner.
According to a preferred embodiment of the present invention, backlight modular structure of the present invention comprises at least: light guide plate, second light emitting diode that has first light emitting diode of first light-emitting area and have second light-emitting area, wherein first light emitting diode is adjacent to this light guide plate setting, second light emitting diode is adjacent to the first light emitting diode setting, and first light-emitting area and the extended outside of second light-emitting area angle are substantially between 90 degree and 180 degree.
According to another preferred embodiment of the present invention, backlight modular structure of the present invention comprises at least: light guide plate and a plurality of light-emitting diode group that are equally spaced, these a little light-emitting diode group vicinities are arranged at least one side of light guide plate, and wherein each light-emitting diode group comprises the first above-mentioned light emitting diode and second light emitting diode at least.
But the first above-mentioned light emitting diode and the second light emitting diode involution are integral.
According to a preferred embodiment more of the present invention, backlight modular structure plate of the present invention comprises at least: light guide plate and at least one light emitting diode, this light emitting diode is adjacent to the light guide plate setting, and comprise first light-emitting area and second light-emitting area at least, wherein second light-emitting area is adjacent to first light-emitting area, and first light-emitting area and the extended outside of second light-emitting area angle are substantially between 90 degree and 180 degree.
Therefore, the invention provides a kind of LCD, it includes above-mentioned backlight modular structure.LCD of the present invention comprises rectangle framework, reflector plate, blooming piece and display panels more at least.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended graphic being described in detail as follows:
Fig. 1 is the synoptic diagram of the blanking bar of existing LCD;
Fig. 2 A is the synoptic diagram that illustrates LCD according to a preferred embodiment of the present invention;
Fig. 2 B is the synoptic diagram that illustrates LED-backlit modular structure according to a preferred embodiment of the present invention.
Fig. 3 be along profile line I-I ' sight of Fig. 2 A diagrammatic cross-section;
Fig. 4 is the synoptic diagram of the LED-backlit modular structure of another preferred embodiment of the present invention;
Fig. 5 is the synoptic diagram that illustrates according to the LED-backlit modular structure of a preferred embodiment more of the present invention.
The primary clustering symbol description:
10 light emitting diodes, 12 light emitting diodes
Blanking bar zone, 30 corner
110 light emitting diodes, 112 light-emitting areas
200 120 lumination of light emitting diode diode groups, 122 light-emitting areas
102 rectangle frameworks, 202 polaroids
204 display panels
208 blooming pieces, 210 reflecting elements
214 circuit boards, 216 light guide plate
217 sides, 218 electric wires
300 light emitting diodes
312 light-emitting areas, 322 light-emitting areas
α outside angle
A1, A2 dispersion angle
B1, B2 dispersion angle
Embodiment
The present invention is in backlight modular structure, two next-door neighbours' light emitting diode vicinity is arranged at light guide plate, and the outward-dipping predetermined angle of the light-emitting area that makes each light emitting diode, wherein the extended outside of the two light-emitting areas angle of these two light emitting diodes is approximately between 90 degree and 180 degree.
Please refer to Fig. 2 A and Fig. 2 B, Fig. 2 A is the synoptic diagram that illustrates LCD according to a preferred embodiment of the present invention; Fig. 2 B is the synoptic diagram that illustrates LED-backlit modular structure according to a preferred embodiment of the present invention.
Shown in Fig. 2 A, LCD of the present invention comprises the rectangle framework 102 with four continuous sides, liquid crystal panel 204 and backlight modular structure (not indicating), wherein backlight modular structure comprises light guide plate 216 (shown in Fig. 2 B) at least, light emitting diode 110 with light-emitting area 112, and light emitting diode 120 with light-emitting area 122, wherein light emitting diode 110 and 120 is adjacent to light guide plate 216 settings, promptly be arranged on 102 4 continuous sides of rectangle framework wherein on the side, be preferably on the side 217 that is close to light guide plate 216, in order to light emitting diode 110 and 120 light that provided to be provided.Light emitting diode 120 is adjacent to light emitting diode 110 and is provided with, light emitting diode 120 more near light emitting diode 110 better, and light emitting diode 110 and the outward-dipping predetermined angle of 120 the two difference, so that light-emitting area 112 and light-emitting area 122 extended outside angle α are approximately between 90 degree and 180 degree, wherein, light emitting diode 110 and 120 can be ruddiness, green glow, blue light, white light emitting diode or combinations thereof.Shown in Fig. 2 A or Fig. 2 B, because light emitting diode 110 and 120 has dispersion angle B1 and B2 respectively, wherein dispersion angle B1 and B2 are approximately between 90 degree and 110 degree, therefore, when next-door neighbour's mutually light emitting diode 110 and 120 light- emitting area 112 and 122 have approximately the outside angle α between between 90 degree and 180 degree, light emitting region after the two adds up offers the active region that the light that is sent light guide plate 216 backs can be contained LCD, so can avoid the generation in blanking bar zone, corner as shown in Figure 1, thereby increase the picture quality of the active region of LCD.
In addition, please refer to Fig. 3, illustrate along profile line I-I ' sight of Fig. 2 A diagrammatic cross-section.As shown in Figure 3, be polaroid 202, liquid crystal panel 204, framework 102, blooming piece 208, reflecting element 210, light emitting diode 120, circuit board 214, light guide plate 216 and electric wire 218 from top to bottom.Wherein, reflecting element 210 coating light emitting diode 120, circuit board 214 and with light guide plate 216 adjacency, polaroid 202, display panels 204, framework 102, blooming piece 208 pile up on it in regular turn, and an electric wire 218 that is electrically connected arranged on the circuit board 214, the position of reflecting element 210 and external form are not confined to this, its effect is to reflex to light guide plate 216 in order to the light that light emitting diode 120 is provided, so the position is set the reflecting element 210 of attainable cost purpose and external form all is contained in the present invention.
Please refer to Fig. 4, it illustrates the synoptic diagram according to the LED-backlit modular structure of another preferred embodiment of the present invention.Generally speaking, according to the size of display panel, backlight module need use many light emitting diodes usually, guarantees that display panel has enough brightness.As shown in Figure 4, use when of the present invention, the light emitting diode 110 and 120 shown in Fig. 2 A or Fig. 2 B can be packaged into a light-emitting diode group 200, preferably the two is packaged into one.Then, with a plurality of light-emitting diode group 200 contiguous sides 217 that are arranged at light guide plate 216.Can eliminate blanking bar zone, corner effectively by each light-emitting diode group that makes up in twos 200, so according to actual needs, these a little light-emitting diode group 200 can be equidistantly or not and are equally spaced, and also can be close to the different sides (being on the different sides of rectangle framework) that is arranged at light guide plate 216.What deserves to be mentioned is that when light emitting diode 110 and 120 is combined into a light-emitting diode group 200 involutions when being integral, light emitting diode 110 and 120 s' distance can reduce to minimum, so can increase the effect of eliminating blanking bar zone, corner and the convenience in the application.
In addition, please refer to Fig. 5, it illustrates the synoptic diagram according to the LED-backlit modular structure of a preferred embodiment more of the present invention.Use when of the present invention, light emitting diode shown in Fig. 2 B 110 and 120 can be made into the light emitting diode 300 that comprises light-emitting area 312 and light-emitting area 322 at least, wherein light-emitting area 312 is equal to the light-emitting area 112 shown in Fig. 2 B, light-emitting area 322 is equal to the light-emitting area 122 shown in Fig. 2 B, light-emitting area 322 is adjacent to light-emitting area 312, and light-emitting area 312 and light-emitting area 322 extended outside angle α are approximately between 90 degree and 180 degree.Then, with at least one light emitting diode 300 contiguous light guide plate 216 that are arranged at.Can eliminate blanking bar zone, corner effectively by light emitting diode 300, so according to actual needs, can be close to that the same or different sides of a plurality of light-emitting diode group 300 in light guide plate 216 being set, these a little light-emitting diode group 300 can be equidistantly or not and are equally spaced.What deserves to be mentioned is that when using light emitting diode 300, light-emitting area 312 can almost link together with light-emitting area 322, so the convenience that can increase the effect of eliminating blanking bar zone, corner and use.
In addition, the described backlight modular structure of each preferred embodiment is included in the LCD more than.LCD of the present invention comprises rectangle framework, reflecting element, blooming piece and display panels more at least except that including above-mentioned backlight modular structure.Wherein, the rectangle framework has four continuous sides, the light guide plate of backlight modular structure is arranged within the rectangle framework, the light emitting diode of backlight modular structure is arranged on the wherein side of rectangle framework, the light guide plate adjacency of reflecting element and backlight modular structure, blooming piece is arranged on the reflecting element, and display panels is arranged on the blooming piece, and is embedded within the rectangle framework.
By the invention described above preferred embodiment as can be known, using advantage of the present invention is: can eliminate blanking bar zone, corner effectively; Increase the convenience on using, thereby improve picture quality significantly, and reduce production cost.
Though disclosed the present invention in conjunction with an above preferred embodiment; yet it is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with appended being as the criterion that claim was defined.
Claims (5)
1. backlight modular structure comprises at least:
Light guide plate;
Have first light emitting diode (LED) of first light-emitting area, be adjacent to this light guide plate setting; And
Second light emitting diode with second light-emitting area is adjacent to this first light emitting diode setting, and wherein the extended outside angle of this first light-emitting area and this second light-emitting area is substantially between 90 degree and 180 degree.
2. backlight modular structure as claimed in claim 1, wherein the light dispersion angle of this first light emitting diode or this second light emitting diode is substantially between 90 degree and 110 degree.
3. backlight modular structure as claimed in claim 1, wherein this first light emitting diode and this second LED package are integral.
4. backlight modular structure as claimed in claim 1, wherein this first light emitting diode or this second light emitting diode are a white light emitting diode.
5. LCD comprises:
Backlight modular structure comprises at least:
Light guide plate;
Have first light emitting diode (LED) of first light-emitting area, be adjacent to this light guide plate setting; And
Second light emitting diode with second light-emitting area is adjacent to this first light emitting diode setting, and wherein the extended outside angle of this first light-emitting area and this second light-emitting area is substantially between 90 degree and 180 degree;
The rectangle framework has four continuous sides, and wherein the light guide plate of this backlight modular structure is arranged within this rectangle framework, and the luminous second tube sheet of this backlight modular structure is arranged on the wherein side of this rectangle framework;
Reflecting element is with the light guide plate adjacency of this backlight modular structure;
Blooming piece is arranged on this reflecting element; And
Display panels is arranged on this blooming piece, is embedded within this rectangle framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100229346A CN100359389C (en) | 2005-12-22 | 2005-12-22 | Backlight module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100229346A CN100359389C (en) | 2005-12-22 | 2005-12-22 | Backlight module structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1786796A CN1786796A (en) | 2006-06-14 |
| CN100359389C true CN100359389C (en) | 2008-01-02 |
Family
ID=36784315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100229346A Active CN100359389C (en) | 2005-12-22 | 2005-12-22 | Backlight module structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100359389C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292192A (en) * | 2013-06-19 | 2013-09-11 | 苏州信亚科技有限公司 | High-efficiency LED lamp |
| CN107422540A (en) * | 2017-09-18 | 2017-12-01 | 惠科股份有限公司 | Display device |
| CN107678209A (en) * | 2017-09-18 | 2018-02-09 | 惠科股份有限公司 | Display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613782Y (en) * | 2003-03-27 | 2004-04-28 | 鸿富锦精密工业（深圳）有限公司 | LED light source device |
| CN1504803A (en) * | 2002-11-29 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Backlight source and liquid crystal display device |
| CN1549016A (en) * | 2003-05-09 | 2004-11-24 | 统宝光电股份有限公司 | Luminous diode array light source and back light assembly using the same light source |
-
2005
- 2005-12-22 CN CNB2005100229346A patent/CN100359389C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504803A (en) * | 2002-11-29 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Backlight source and liquid crystal display device |
| CN2613782Y (en) * | 2003-03-27 | 2004-04-28 | 鸿富锦精密工业（深圳）有限公司 | LED light source device |
| CN1549016A (en) * | 2003-05-09 | 2004-11-24 | 统宝光电股份有限公司 | Luminous diode array light source and back light assembly using the same light source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1786796A (en) | 2006-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102667310B (en) | Illuminating device, display device, and television receiver | |
| US7632002B1 (en) | Backlight unit | |
| JP4335891B2 (en) | Backlight assembly and liquid crystal display device having the same | |
| JP4729720B2 (en) | Planar illumination device and liquid crystal display device using the planar illumination device as a backlight | |
| JP4896120B2 (en) | Backlight unit and liquid crystal display device using the same | |
| US7938552B2 (en) | Reflecting device and application thereof in backlight unit for enhancing light directivity | |
| US20010035853A1 (en) | Assembly of a display device and an illumination system | |
| KR102297912B1 (en) | Display apparatus | |
| EP3190456B1 (en) | Display device | |
| CN102606938A (en) | Backlight device, image display device, and method of assembling backlight device | |
| CN100359389C (en) | Backlight module structure | |
| JP2013092732A (en) | Backlight device, image display device and method for controlling backlight device | |
| CN204513083U (en) | A kind of down straight aphototropism mode set and liquid crystal display | |
| JP2013211184A (en) | Backlight device, display device, and television receiving apparatus | |
| US9905169B2 (en) | Display device | |
| KR20070108712A (en) | Back light unit | |
| US8002453B2 (en) | Light-emitting diode backlight module and liquid crystal display using the same | |
| US20130016133A1 (en) | Backlight module and liquid crystal display device using the same | |
| JP5527230B2 (en) | Backlight device and image display device | |
| CN103364991A (en) | Backlight module and display device | |
| US7901100B2 (en) | Backlight module unit and backlight module | |
| KR20190116836A (en) | Display device | |
| KR101336836B1 (en) | Backlight unit | |
| KR102664229B1 (en) | Back light unit and display device comprising it | |
| US20240152000A1 (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |