CN1610494A - Front base plate structure of plane light source apparatus and application thereof - Google Patents
Front base plate structure of plane light source apparatus and application thereof Download PDFInfo
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- CN1610494A CN1610494A CN 200410097452 CN200410097452A CN1610494A CN 1610494 A CN1610494 A CN 1610494A CN 200410097452 CN200410097452 CN 200410097452 CN 200410097452 A CN200410097452 A CN 200410097452A CN 1610494 A CN1610494 A CN 1610494A
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Abstract
The front base board structure for planar light source device is one integrally formed raised curved surface structure or one integrally formed outer convex and inner concave structure. The front base board structure has the function of support frame and can diffuse the light the planar light source device generates homogeneously.
Description
Technical field
Front base plate structure in the structure, particularly planar light source device of the relevant a kind of planar light source device of the present invention, it not only has the function of support, also can allow planar light source device that one uniform light output is arranged simultaneously.
Background technology
The structure of an existing planar light source device 100 can be with reference to Figure 1A, this planar light source device 100 mainly is by two prebasal plates that be arranged in parallel 101 and the metacoxal plate 103 relative structures that combine a panel, and forms a mezzanine space by placing framework (frame) 105 all around.Prebasal plate 101 can be described as upper substrate, and it places on the light output direction of this planar light source device 100, is made up of a glass or other macromolecule materials, and has translucidus; Metacoxal plate then can be described as infrabasal plate, and can be made of materials such as glass equally.
And in this mezzanine space, at first be that a plurality of anodes (anode) electrode 107 and negative electrode (cathode) electrode 109 are set on metacoxal plate 103 surfaces, and at its surface coated one deck dielectric substance layer 111 to reach the function of protection.Then then coat in this mezzanine space, for example coat among Figure 1A on the dielectric substance layer 111, perhaps also can coat the surperficial (not shown) of prebasal plate at the fluorescent layer 113 that will contain fluorescent substance such as phosphide.Then in this mezzanine space, pour into discharge gas afterwards, composition gas such as argon, neon, xenon or mercury vapour for example, thus, when electrode is imposed a voltage, just can excite the gas in the mezzanine space to make it to produce discharge and disengage ultraviolet light, when fluorescent substance contained in the ultraviolet light collision fluorescent layer 113, then can send the visible light of specific wavelength, and export a planar light source by the structure of this planar light source device 100.
Continuation is with reference to Figure 1A, in above-mentioned mezzanine space, since prebasal plate 101 and metacoxal plate 103 only by around framework 105 as binding, therefore can keep firm panel construction and unlikely distortion in order to allow between prebasal plate 101 and the metacoxal plate 103, existing planar light source device 100 just is provided with a plurality of support columns (spacer) 115 or the supporting walls (not shown) of strip in mezzanine space, a stable support is provided in order to even dispersive stress between prebasal plate 101 and the metacoxal plate 103.
With reference to Figure 1B, it is along the cross-section structure of the resultant planar light source device 100 of 1B-IB hatching among Figure 1A, figure can observe and learn thus, existing planar light source device 100 is provided with the mode of a plurality of support columns 115 in mezzanine space, will increase the complexity in the making, and with regard to planar light source device 100, support column 115 can be described as a dark space that hinders light to export in the cross section that contacts with prebasal plate 101.Therefore, combine, then not only can reduce the complexity of planar light source device on making if prebasal plate and support column can be done one; On the other hand, the existing problem that influences light output because support column contacts with prebasal plate also can achieve a solution.
With reference to Fig. 2 A, in existing another planar light source device 200, prebasal plate 201 is in the process that forms, integrally formed one has the sunk structure of convex surface, and the convex surface of this sunk structure is all towards metacoxal plate 203, just all the direction with light output is not identical for the convex surface of this sunk structure, therefore can be described as a kind of sunk structure with inner sunken face.And above-mentioned prebasal plate 201, it promptly is the function that replaces bracing frame in the planar light source device with this sunk structure with inner sunken face, therefore not only can support metacoxal plate 203 and allow planar light source device 200 that a firm structure is arranged, on the other hand, existingly bracing frame is set and produces the improvement that the situation that hinders light output also can obtain.
Continuation is with reference to Fig. 2 A, though above-mentioned prebasal plate 201 forms the sunk structure with inner sunken face and the function that reaches support in integrally formed mode, and do not hinder the light output of planar light source device 200 yet, but the light that is produced in the mezzanine space but produces a situation about focusing on easily on the direction of light output because of the curved surface of this indent, and this measure will reduce the light output uniformity of whole planar light source device.Simultaneously with reference to Fig. 2 B, if prebasal plate 201 is being faced formation a plurality of cone shape sunk structures (summit of this circular cone is meant to metacoxal plate 203) on the direction of metacoxal plate 203, though can promote the uniformity of the whole light output of planar light source device, its effect is still limited.
In the prior art of above-mentioned planar light source device, prebasal plate is to form one in integrally formed mode to have an inner sunken face or a cone shape sunk structure in the process that forms, though this measure can allow the function that prebasal plate possesses support, can't allow planar light source device that one uniform light output is arranged.Therefore need a kind of front base plate structure that is applied to planar light source device badly, make its function that not only has support, this planar light source device also can have a uniform light output performance simultaneously.
Summary of the invention
Because in the prior art, prebasal plate forms in integrally formed mode has that inner sunken face or cone shape sunk structure reach support function but the problem that reduced the whole light output uniformity simultaneously, the invention provides a kind of front base plate structure improvement of planar light source device, one of its purpose is to provide in the planar light source device and can obtains a firm support by the mezzanine space that prebasal plate and metacoxal plate surrounded, and this extension also can improve the existing not good problem of its light output uniformity of prebasal plate with support function simultaneously from the supporting construction of prebasal plate.
For realizing above-mentioned purpose, a kind of front base plate structure of planar light source device is provided according to an aspect of the present invention, comprising: at least one planar section; And a plurality of sunk structures with outer convex surface, wherein, the madial wall section of this sunk structure presents the profile of a convex surface.
A kind of planar light source device is provided according to a further aspect of the invention, comprises at least: a metacoxal plate; And a prebasal plate, this prebasal plate is to be arranged in parallel with this metacoxal plate, and this prebasal plate has a plurality of sunk structures, wherein, this sunk structure is to extend to this metacoxal plate from this prebasal plate, and the madial wall section of this sunk structure presents the profile of a convex surface.
The invention provides a kind of front base plate structure that is applied to planar light source device, particularly in the forming process of this prebasal plate, form the sunk structure of an outer convex surface or evagination inner sunken face in integrally formed mode, and above-mentioned sunk structure not only can replace the function of bracing frame, and because its convex surface is towards prebasal plate, therefore the light that produces in the planar light source device evenly can be diffused on the direction of light output, and the unlikely whole light of planar light source device that makes is exported the uneven situation of generation.
Description of drawings
Figure 1A to Figure 1B is the stereochemical structure and the cross-sectional view of an existing planar light source device.
Fig. 2 A to Fig. 2 B is its cross-sectional view of prebasal plate that has support function in existing another planar light source device.
Fig. 3 A to Fig. 3 D is the structural representation of prebasal plate in the planar light source device that is provided according to a preferred embodiment of the present invention.
Embodiment
Next be detailed description of the present invention, description to planar light source device in the following explanation does not comprise the principle that detailed member is formed and in fact driven running, the prior art that the present invention continued to use is only done quoting of emphasis formula at this, to help elaboration of the present invention.And relevant diagram is also drawn according to actual ratio in the following interior literary composition, and its effect is only giving expression to feature of the present invention.
Provide a kind of front base plate structure that is applicable to planar light source device according to a preferred embodiment of the present invention.With reference to Fig. 3 A, metacoxal plate 303 in the planar light source device 300, a plurality of electrode (not shown), framework 305 all around, members such as dielectric substance layer 311 and fluorescent layer 313 are formed all with identical during prior art is described, but in the present embodiment the prebasal plate that provides 301 its in the process that is shaped, be with integrally formed processing mode, on the part plane of prebasal plate 301, form the structure of a plurality of grooves, and this groove structure is to be extended into to the direction of planar light source device 300 inside by prebasal plate 301, just extends and is supported on the metacoxal plate 303 of planar light source device 300.The function that therefore just can replace support column in the prior art (or supporting walls) by these a plurality of groove structures, and the difference of this prebasal plate 301 and prebasal plate 201 maximums described in the prior art promptly are the external forms of the madial wall curved surface of sunk structure.The section of existing (with reference to Fig. 2 A) prebasal plate 201 sunken inside structures is the profiles that present a concave surface (concave), the curved surface that just has an indent, therefore its projecting surface is meant to metacoxal plate, the concave surface of another side then is the direction towards light output, thus, the light that produces in the mezzanine space produces situation about focusing on easily on light output direction because of this inner sunken face, thereby cause the uniformity of light output to reduce; But the prebasal plate 301 that present embodiment provided, the section of the madial wall of its sunk structure presents the profile of a convex surface (convex), just have an outer convex surface, so its projecting surface is the direction towards light output, its concave surface is then towards the direction of metacoxal plate 303; Thus, the light that is produced in the mezzanine space will distribute on the direction of light output and come because of convex surface in addition, and the output of the light of planar light source device 300 just can not form the situation that the sunk structure that supports usefulness but causes the light output uniformity to reduce suddenly yet on prebasal plate 201 as prior art.
Simultaneously with reference to Fig. 3 B, it is that the present invention does a clearer explanation for inner sunken face and outer convex surface, the inner sunken face that sunk structure had of prebasal plate 201 promptly is that the section of its madial wall has a concave surface (concave) profile 317 in the so-called prior art.And the outer convex surface that sunk structure had of the prebasal plate 301 that this case provided, the section of its madial wall then has a convex surface (convex) profile 319.But prebasal plate 301 provided by the present invention, the sunk structure that it has, also can have an evagination inner sunken face, that is to say at its madial wall section of part to have a convex surface profile 321A, then have a concave surface profile 321B at part phase madial wall section near metacoxal plate near the prebasal plate plane.
Continuation is with reference to Fig. 3 C, it is prebasal plate 301 its perspective view that present embodiment provides, figure can clear view learn that this prebasal plate 301 is in the process that forms thus, integrally formed a plurality of approximate cone shape sunk structure that has, but the curved surface that all has evagination, the function that therefore not only can replace support column (spacer) in the existing planar light source device also can help planar light source device that one uniform light output is arranged.And prebasal plate 301 provided by the present invention, the sunk structure that it had, also can be one to have the channel form structure of outer convex surface (just two madial walls of this groove are outer convex surface as shown in Fig. 3 C, and the section profile vertical with the groove orientation is similar to conic section 321A, 321B among Fig. 3 B), the function that so just can replace supporting walls in the existing planar light source device, and pattern also can allow planar light source device output uniformly.But formed sunk structure in the above-mentioned prebasal plate 301, its degree of depth, the curvature of outer convex surface, and the number that forms and the position form that is not limited in the present embodiment to be provided, allly meet the position of electrode arrangement and allow the light that is produced in (or rear) mezzanine space below the prebasal plate have one to disperse effect uniformly, the sunk structure of convex surface or evagination inner sunken face all can specifically be implemented according to the present invention outside just formation had on prebasal plate, and prebasal plate provided by the present invention, also can be selected from glass or other macromolecular materials are formed, and all have translucidus.
Above-mentioned accompanying drawing that discloses and explanation are embodiments of the invention only, are not for limiting enforcement of the present invention; Every personage who is familiar with this technology, its other equivalences of having done according to feature category of the present invention change or modify, and all should be encompassed in following the application's the claim scope.
Claims (10)
1. the front base plate structure of a planar light source device comprises:
At least one planar section; And
A plurality of sunk structures with outer convex surface, wherein, the madial wall section of this sunk structure presents the profile of a convex surface.
2. the front base plate structure of planar light source device as claimed in claim 1 is characterized in that this sunk structure is approximate cone shape structure.
3. the front base plate structure of planar light source device as claimed in claim 1 is characterized in that this sunk structure is the structure of channel form.
4. the front base plate structure of planar light source device as claimed in claim 1 is characterized in that the base section in this sunk structure, and its madial wall section presents a concave surface profile.
5. planar light source device comprises at least:
One metacoxal plate; And
One prebasal plate, this prebasal plate are to be arranged in parallel with this metacoxal plate, and this prebasal plate has a plurality of sunk structures, and wherein, this sunk structure is to extend to this metacoxal plate from this prebasal plate, and the madial wall section of this sunk structure presents the profile of a convex surface.
6. planar light source device as claimed in claim 5 is characterized in that this sunk structure is approximate cone shape structure.
7. planar light source device as claimed in claim 5 is characterized in that this sunk structure is the structure of channel form.
8. planar light source device as claimed in claim 5 is characterized in that its madial wall section of part near this metacoxal plate presents a concave surface profile in this sunk structure.
9. planar light source device as claimed in claim 5 is characterized in that also comprising:
A plurality of frameworks around this prebasal plate and this metacoxal plate, this framework are to surround with this prebasal plate and metacoxal plate to form a mezzanine space;
An at least one anode electrode and a cathode electrode are formed in this mezzanine space;
One dielectric substance layer covers this anode electrode and this cathode electrode; And
One fluorescent layer is coated in this mezzanine space.
10. planar light source device as claimed in claim 8 is characterized in that also comprising:
A plurality of frameworks around this prebasal plate and this metacoxal plate, this framework are to surround with this prebasal plate and metacoxal plate to form a mezzanine space;
An at least one anode electrode and a cathode electrode are formed in this mezzanine space;
One dielectric substance layer covers this anode electrode and this cathode electrode; And
One fluorescent layer is coated in this mezzanine space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100974522A CN1303642C (en) | 2004-11-25 | 2004-11-25 | Front base plate structure of plane light source apparatus and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100974522A CN1303642C (en) | 2004-11-25 | 2004-11-25 | Front base plate structure of plane light source apparatus and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1610494A true CN1610494A (en) | 2005-04-27 |
| CN1303642C CN1303642C (en) | 2007-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100974522A Expired - Fee Related CN1303642C (en) | 2004-11-25 | 2004-11-25 | Front base plate structure of plane light source apparatus and application thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1303642C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463101C (en) * | 2005-12-16 | 2009-02-18 | 友达光电股份有限公司 | Light source of plane displayer |
| CN105974634A (en) * | 2016-07-18 | 2016-09-28 | 武汉华星光电技术有限公司 | Liquid crystal display module and electronic device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2919682B2 (en) * | 1992-09-10 | 1999-07-12 | 三洋電機株式会社 | Flat fluorescent lamp |
| JP2679642B2 (en) * | 1994-09-01 | 1997-11-19 | 日本電気株式会社 | Transmissive liquid crystal display |
| TW464779B (en) * | 1996-11-26 | 2001-11-21 | Sharp Kk | Liquid crystal display device and method for producing the same |
| US7157846B2 (en) * | 2003-06-10 | 2007-01-02 | Au Optronics Corporation | Blink plasma backlight system for liquid crystal display |
-
2004
- 2004-11-25 CN CNB2004100974522A patent/CN1303642C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463101C (en) * | 2005-12-16 | 2009-02-18 | 友达光电股份有限公司 | Light source of plane displayer |
| CN105974634A (en) * | 2016-07-18 | 2016-09-28 | 武汉华星光电技术有限公司 | Liquid crystal display module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1303642C (en) | 2007-03-07 |
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Granted publication date: 20070307 Termination date: 20201125 |