CN100395865C - Composite baseplate capable of lighting at two sides - Google Patents
Composite baseplate capable of lighting at two sides Download PDFInfo
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- CN100395865C CN100395865C CNB2004101027915A CN200410102791A CN100395865C CN 100395865 C CN100395865 C CN 100395865C CN B2004101027915 A CNB2004101027915 A CN B2004101027915A CN 200410102791 A CN200410102791 A CN 200410102791A CN 100395865 C CN100395865 C CN 100395865C
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Abstract
The present invention relates to a field emission backlight assembly, both surfaces of which emit light. The field emission backlight module comprises a first light permeable base plate, a second light permeable base plate and a plurality of spatial supporters, wherein the surface of the first light permeable base plate is provided with a plurality of first conductors which extend in parallel, a plurality of emitters are arranged on each of the first conductors at intervals with equal distances, the emitters and the first conductors are connected in a telecommunication way, and a plurality of second conductors which extend in parallel are arranged on the first conductors; the second light permeable base plate is arranged in a way of being parallel to the first light permeable base plate, and a fluorescent layer is coated on the surface facing the first light permeable base plate. The spatial supporters are positioned between the first light permeable base plate and the second light permeable base plate.
Description
Technical field
The present invention relates to a kind of composite base plate, but relate in particular to a kind of composite base plate that adopts the lighting at two sides of new construction and new material.
Background technology
Field Emission Display (Field Emission Display, FED) be the display of global develop actively about 1980, it is a kind of cathode ray tube (Cathode-Ray Tube, CRT) structure of complanation, pursue complanation now, under the demand of in light weight and high brightness, Field Emission Display has the potentiality of future market main flow, the method of its video picture is similar to the operation principle of cathode ray tube, be by the cathode emission electronics, behind the environment and anode acceleration via vacuum, bump fluorescent material and produce light, and Field Emission Display and cathode ray tube the two the fluorescent material that utilizes also be identical material.Unique differentiation is the producing method of electronics, and the electronics that cathode ray tube produces is that heated cathode produces, and is called as hot-cathode electric (Hot CathodeElectrons); Field Emission Display then for utilizing electric field that electronics is attracted to produce by negative electrode, is called as cold cathode electronics (Cold Cathode Electrons).
As shown in Figure 1, existing Field Emission Display 1 (FED) is made up of a face glass 11 and a glass substrate 18, be provided with a plurality of spaces supporter 13 (Spacer) in this face glass 11 and this glass substrate 18, and the space of 18 of this face glass 11 and this glass substrates is a vacuum.Also be provided with a fluorescence coating 12 and electrode (not shown) on the face glass 11, and generally claim this face glass 11 to be positive plate, its coating technique is similar to cathode ray tube (CRT) or vacuum fluorescent display (VFD).And glass substrate 18 is called minus plate, which is provided with a negative electrode 17, this negative electrode 17 is provided with a plurality of emission tips 16, between this two adjacent emission tip 16 with insulating barrier 15 separately, also be provided with a grid 14 on this insulating barrier 15, and this grid 14 is provided with perforate 141 in corresponding these emission tip 16 places.
In Field Emission Display (FED), but negative electrode is field emission array (the FieldEmission Array of emit electron beam, FEA), its structure is different from cathode ray tube (CRT) forms the face of scanning with thermionic source line focus deviation electron beam, also the empty fluorescence display of likelihood (VFD) does not constitute the electron source of face pictures with many hot lines, it is real Two dimensional Distribution face electron source, the principle of luminosity of Field Emission Display (FED) is to utilize electric field that cold electronics is attracted to vacuum by cathode material, and the field emission electron that leaves minus plate is subjected to the acceleration of positive voltage on the positive plate and attracts, bump fluorescent material and produce cathode-luminescence (Cathodoluminescence).
Yet, in existing Field Emission Display (FED) field, the display that manufactures all only can be done the usefulness of single face demonstration, promptly, only this face of face glass (positive plate) is can luminous (printing opacity), and glass substrate (minus plate) is because of being subject to luminous efficiency not good and/or electrode material and the lighttight cause of dielectric layer material, so make it can't be applied to the backlight of the display of lighting at two sides.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of field emission backlight assembly of lighting at two sides, this field emission backlight assembly adopts novel negative electrode and gate configuration structure, and can use transparency electrode, realizing the function of lighting at two sides, and can be in display with double faces as the usefulness of backlight module.
For achieving the above object, the field emission backlight assembly of this lighting at two sides comprises: one first light-permeable substrate, surface thereof is provided with first conductor of many light-permeables that extend in parallel, be provided with a plurality of emitters with equidistant intervals on this first conductor, also be provided with many second conductors that extend in parallel on this first conductor; Also be provided with a light-permeable insulating barrier between these many first conductors and these many second conductors, and the configuration that is perpendicular to one another with these many second conductors of these many first conductors; One second light-permeable substrate, it is parallel to this first light-permeable substrate setting, and is facing coating one fluorescence coating on the surface of this first light-permeable substrate; And a plurality of spaces supporter, it is between this first light-permeable substrate and this second light-permeable substrate.
And, for achieving the above object, but the present invention also provides a kind of composite base plate of lighting at two sides, comprise: one first light-permeable substrate, surface thereof is provided with many first conductors that extend in parallel, be provided with a plurality of emitters with equidistant intervals on this first conductor, also be provided with many second conductors that extend in parallel on this first conductor, wherein these many first conductors are parallel to each other and interconnected with these many second conductors; One second light-permeable substrate, it is parallel to this first light-permeable substrate setting, and in facing coating one fluorescence coating on the surface of this first light-permeable substrate; And a plurality of spaces supporter, it is between this first light-permeable substrate and this second light-permeable substrate.
Preferably, this light-permeable first conductor is a tin indium oxide.
Preferably, be provided with a light-permeable conductor layer between this fluorescence coating and this second light-permeable substrate.
Preferably, this light-permeable conductor layer is a tin indium oxide.
Preferably, the coating process of this fluorescence coating is a kind of in wire mark method, electrophoresis and the lithography process.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the drawing in side sectional elevation of existing Field Emission Display;
Fig. 2 is the schematic diagram of double-side display;
Fig. 3 is the part enlarged drawing of Fig. 2, but it shows the composite base plate of this lighting at two sides;
Fig. 4 is the negative electrode of an existing emitting module and the vertical view of gate configuration mode; And
But Fig. 5 is the negative electrode of the composite base plate of the present invention's lighting at two sides and the vertical view of gate configuration mode.
[element numbers explanation]
The 1-Field Emission Display
The 11-face glass
The 12-fluorescence coating
13-space supporter
The 14-grid
The 141-perforate
The 15-insulating barrier
The 16-emission tip
The 17-negative electrode
The 18-glass substrate
The 2-display
21-upper film transistor liquid crystal layer
The 211-light source
Tft liquid crystal layer under the 22-
The 221-light source
But the composite base plate of 23-lighting at two sides
The 231-first light-permeable substrate
233-first conductor
The 2331-emission tip
235-second conductor
The 237-fluorescence coating
The 2371-cathode-luminescence
The 2373-cathode-luminescence
The 239-second light-permeable substrate
The 301-block
E-electronics e
Embodiment
Describe the present invention hereinafter with reference to accompanying drawing and be realization employed technological means of purpose and effect, and the cited embodiment of the following drawings only is an aid illustration, not as limitation of the present invention.
Fig. 2 is the schematic diagram of double-side display.Wherein this display 2 includes a upper film transistor liquid crystal layer 21 (TFT Liquid Cell) and tft liquid crystal layer 22 once, and but the composite base plate 23 of lighting at two sides of the present invention just can be arranged between this upper film transistor liquid crystal layer 21 and this time tft liquid crystal layer 22 with as backlight assembly, so can provide light source 211 to this upper film transistor liquid crystal layer 21 simultaneously, and provide light source 221 to this time tft liquid crystal layer 22.
Fig. 3 is the part enlarged drawing of Fig. 2, but it shows the composite base plate of this lighting at two sides.But composite base plate 23 that should lighting at two sides is similar to the described structure of Fig. 1, yet for ease of explanation, but in the composite base plate 23 of this lighting at two sides, part assembly (as insulating barrier, with the space supporter etc.) omits.In Fig. 3, the first light-permeable substrate 231 can transparent material, for example glass is made, this first light-permeable substrate 231 is provided with first conductor 233 (its configuration mode will be explained hereinafter) of a plurality of strips, this first conductor 233 can metal or tin indium oxide conductive material such as (ITO) made, also be provided with second conductor 235 (its configuration mode also will be explained hereinafter) of a plurality of strips on this first conductor 233, in this structure, this first conductor 233 is as negative electrode (Cathode), 235 of this second conductors are as grid (Gate), also be provided with a plurality of emission tips 2331 on this first conductor 233, this emission tip 2331 is a conductor.
One second light-permeable substrate 239 is parallel to this first light-permeable substrate 231 and is provided with, and in the face of (below in Fig. 3 being) coating one fluorescence coating 237 on the surface of this first light-permeable substrate 231, the coating process of this fluorescence coating 237 can the wire mark method, electrophoresis or lithography process are made.In this structure, but the metal film of evaporation one deck planarization (as the aluminium film) or the use (not shown) of a tin indium oxide (ITO) film as conduction is set on this second light-permeable substrate 239 also on this second light-permeable substrate 239; Again, 239 of this first light-permeable substrate 231 and this second light-permeable substrates also support (not shown) with a plurality of spaces supporters (Spacer).
When start, but the composite base plate that is somebody's turn to do lighting at two sides is passed into an electric field, make the electronics e on this first conductor 233 (negative electrode) can be subjected to electric field attracts, and penetrate by this emission tip 2331, simultaneously, leave electronics e on this first conductor 233 (negative electrode) and can be subjected to the attraction of positive voltage on this second light-permeable substrate 239 and quicken, and clash into this fluorescence coating 237 and produce cathode-luminescence 2371 and cathode-luminescence 2373.
Afterwards, this cathode-luminescence 2371 can pass this second transparency carrier 239 and the display light line pattern smoothly.Yet in the prior art, owing to mostly being opaque metal, this first conductor 233 as negative electrode forms, and again because luminous point (electronics e emission place, promptly, the intersection of this first conductor 233 and this second conductor 235 also is the intersection of negative electrode and grid) lazy weight, so this cathode-luminescence 2373 Chang Yinwei suffer that cathode layer stops or because of luminance shortage, make that this first light-permeable substrate 231 can't the display light line pattern, and can't reach the effect of lighting at two sides.
And in the present invention, this first conductor 233 (negative electrode) adopts configuration newly with this second conductor 235 (grid), thus can reach double-side, as Fig. 4 and shown in Figure 5.Fig. 4 is the negative electrode in the existing emitting module and the vertical view of gate configuration mode, and wherein this first conductor 233 (negative electrode) adopts the configuration that is perpendicular to one another with this second conductor 235 (grid).In this kind configuration, only at this first conductor 233 and these second conductor, 235 contact positions, be block 301 places, just can launch the electronics (not shown) and make that corresponding fluorescence coating (not shown) is luminous, so the luminous efficiency of structure is relatively poor, and in this kind configuration, between this first conductor 233 (negative electrode) and this second conductor 235 (grid) an insulation dielectric layer (not shown) need be set.Therefore, when first conductor 233 (negative electrode) of the present invention and second conductor 235 (grid) adopt the emission source configuration of this kind block shape, this first conductor 233 (negative electrode) needs to adopt transparent material, as tin indium oxide, and this insulation dielectric layer (not shown) need be used the higher material of light transmittance, can make this cathode-luminescence 2373 can pass this first conductor 233, to reach the effect of double-side.
Fig. 5 is the vertical view of negative electrode of the present invention and gate configuration mode, and wherein this first conductor 233 (negative electrode) adopts parallel to each other and staggered configuration with this second conductor 235 (grid).In this kind configuration, because this first conductor 233 can interlock fully with this second conductor 235 and contact, contact area is big, so make the electronics (not shown) to launch comprehensively, make the fluorescence coating luminous efficiency increase, and in the parallel staggered configuration of this kind, then this insulation dielectric layer need be set between this first conductor (negative electrode) and this second conductor (grid).Therefore, when first conductor 233 (negative electrode) of the present invention and second conductor 235 (grid) adopt this kind configuration, this cathode-luminescence 2373 can pass this first conductor 233 (negative electrode) easily, so this first conductor 233 can use traditional metal to make, certainly, when desiring to reach better luminous efficiency, this first conductor 233 also can use transparent material (as tin indium oxide) to make.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (9)
- But 1. the composite base plate of a lighting at two sides, its spy is, comprising:One first light-permeable substrate, surface thereof are provided with many light-permeables first conductor that extends in parallel, and are provided with a plurality of emitters with equidistant intervals on this first conductor, also are provided with many second conductors that extend in parallel on described first conductor; Also be provided with a light-permeable insulating barrier between described many first conductors and described many second conductors, and the configuration that is perpendicular to one another with described many second conductors of described many first conductors;One second light-permeable substrate, it is parallel to the described first light-permeable substrate setting, and is facing coating one fluorescence coating on the surface of the described first light-permeable substrate; AndA plurality of spaces supporter, it is between described first light-permeable substrate and the described second light-permeable substrate.
- 2. but the composite base plate of lighting at two sides as claimed in claim 1 is characterized in that, described light-permeable first conductor is made by tin indium oxide.
- 3. but the composite base plate of lighting at two sides as claimed in claim 1 is characterized in that, is provided with a light-permeable conductor layer between described fluorescence coating and the described second light-permeable substrate.
- 4. but the composite base plate of lighting at two sides as claimed in claim 3 is characterized in that, described light-permeable conductor layer is a tin indium oxide.
- 5. but the composite base plate of lighting at two sides as claimed in claim 1 is characterized in that, the coating process of described fluorescence coating is to select a kind of in wire mark method, electrophoresis and the lithography process.
- 6. but the composite base plate of a lighting at two sides is characterized in that, comprising:One first light-permeable substrate, surface thereof is provided with many first conductors that extend in parallel, be provided with a plurality of emitters with equidistant intervals on described first conductor, also be provided with many second conductors that extend in parallel on described first conductor, wherein said many first conductors and described many second conductors are parallel to each other and interconnected;One second light-permeable substrate, it is parallel to the described first light-permeable substrate setting, and in facing coating one fluorescence coating on the surface of the described first light-permeable substrate; AndA plurality of spaces supporter, it is between described first light-permeable substrate and the described second light-permeable substrate.
- 7. but the composite base plate of lighting at two sides as claimed in claim 6 is characterized in that, is provided with a light-permeable conductor layer between described fluorescence coating and the described second light-permeable substrate.
- 8. but the composite base plate of lighting at two sides as claimed in claim 7 is characterized in that, described light-permeable conductor layer is a tin indium oxide.
- 9. but the composite base plate of lighting at two sides as claimed in claim 6 is characterized in that, the coating process of described fluorescence coating is to select a kind of in wire mark method, electrophoresis and the lithography process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101027915A CN100395865C (en) | 2004-12-28 | 2004-12-28 | Composite baseplate capable of lighting at two sides |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101027915A CN100395865C (en) | 2004-12-28 | 2004-12-28 | Composite baseplate capable of lighting at two sides |
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| Publication Number | Publication Date |
|---|---|
| CN1797684A CN1797684A (en) | 2006-07-05 |
| CN100395865C true CN100395865C (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101027915A Expired - Fee Related CN100395865C (en) | 2004-12-28 | 2004-12-28 | Composite baseplate capable of lighting at two sides |
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| Country | Link |
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| CN (1) | CN100395865C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783925B (en) * | 2016-12-28 | 2019-08-02 | 武汉华星光电技术有限公司 | A kind of double face display panel and double-side display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034514A1 (en) * | 1995-04-25 | 1996-10-31 | Citizen Watch Co., Ltd. | Organic electroluminescence apparatus |
| CN1355548A (en) * | 2000-12-01 | 2002-06-26 | 中国科学院电子学研究所 | Microelectronic vacuum luminous element with efficient dual-surface field emission cathode |
| CN1507306A (en) * | 2002-12-10 | 2004-06-23 | 胜华科技股份有限公司 | Two-sided luminescing inorganic electroluminescent device |
-
2004
- 2004-12-28 CN CNB2004101027915A patent/CN100395865C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034514A1 (en) * | 1995-04-25 | 1996-10-31 | Citizen Watch Co., Ltd. | Organic electroluminescence apparatus |
| CN1355548A (en) * | 2000-12-01 | 2002-06-26 | 中国科学院电子学研究所 | Microelectronic vacuum luminous element with efficient dual-surface field emission cathode |
| CN1507306A (en) * | 2002-12-10 | 2004-06-23 | 胜华科技股份有限公司 | Two-sided luminescing inorganic electroluminescent device |
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| Publication number | Publication date |
|---|---|
| CN1797684A (en) | 2006-07-05 |
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