CN202269044U - Illuminating device - Google Patents
Illuminating device Download PDFInfo
- Publication number
- CN202269044U CN202269044U CN201120307832XU CN201120307832U CN202269044U CN 202269044 U CN202269044 U CN 202269044U CN 201120307832X U CN201120307832X U CN 201120307832XU CN 201120307832 U CN201120307832 U CN 201120307832U CN 202269044 U CN202269044 U CN 202269044U
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- China
- Prior art keywords
- light emitting
- lighting device
- substrate
- luminescence unit
- illuminating device
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model relates to an illuminating device, particularly to an illuminating device which comprises an organic electroluminescent component. The illuminating device comprises a substrate and a light emitting member arranged on the substrate, wherein the light emitting member includes a plurality of light emitting units; each light emitting unit includes a switch member and at least two light emitting pixels; each light emitting pixel of the same light emitting unit is controlled by the switch member. The illuminating device provided by the utility model is protected from integral failure due to fault of a certain light emitting pixel, and can greatly reduce light emission non-uniformity caused by difference in properties of different switch members, so that illuminating effect of the illuminating device is effectively increased.
Description
Technical field
The utility model relates to a kind of lighting device, relates in particular to a kind of lighting device that includes organic electroluminescence devices.
Background technology
In recent years, various types of plate illuminating devices in light weight and that volume is little have been developed.In various types of plate illuminating devices, utilize organic electroluminescence device (OLED) to throw light on, but have plurality of advantages such as the low complanation of energy consumption usually, become the focus of lighting device of future generation.
Fig. 1 is the structural representation of existing OLED lighting device; Existing OLED lighting device generally comprises substrate 101 and cap 102, wherein, is formed with anode 103 on the substrate 101; Anode 103 is provided with one or more layers organic function layer 104, and is positioned at the negative electrode 105 on the organic function layer 104.The luminous principle of OLED is to make organic function layer 104 luminous through between anode 103, negative electrode 105, powering up to drive, and realizes illumination functions.
In the prior art; Anode on the substrate adopts the mode of direct vapor deposition or deposition to form the large tracts of land anode, though these class methods are simple, the large tracts of land anode can make and produce very big current strength when electric current is assembled; And further bring stronger current gathering effect; The big electric current that produces causes electrode to be burnt out, and the anode and cathode short circuit takes place, and causes entire device to lose efficacy.To the problems referred to above; The researcher of having as shown in Figure 2 proposes to adopt thin-film transistor (TFT) array base palte 201 to come the driving OLED illuminating device; Though each light emitting pixel 203 has been realized individual drive through TFT202; Can not cause entire lighting device to lose efficacy because of the fault of certain light emitting pixel 203, but the inconsistent meeting of characteristic cause the inhomogeneous of OLED light emitting pixel luminous intensity between each TFT, influences the integral illumination effect of OLED device.How improving the luminous homogeneity of OLED illuminating device, is the problem that industry is studied always.
The utility model content
To the problems referred to above, the purpose of the utility model provides a kind of lighting device that can improve luminous homogeneity.
The purpose of the utility model is achieved through following technical scheme:
The utility model provides a kind of lighting device; Comprise a substrate; And be arranged at luminous component on the substrate, and said luminous component comprises plurality of luminescence units, each luminescence unit comprises a switch block; At least two light emitting pixels, the said light emitting pixel of each of same luminescence unit is controlled by said switch block.
Above-mentioned switch block is a thin-film transistor, and on substrate, is arranged.
Above-mentioned luminous component is an organic electroluminescence device.
Above-mentioned luminous component is monochromatic organic electroluminescence device.
Above-mentioned luminous component is a white color organic electroluminescence device.
Above-mentioned luminescence unit is arranged on base plan, the above-mentioned light emitting pixel of each of same luminescence unit is arranged.
Aforesaid substrate is a planar substrates, and substrate shape can be rectangle, circle or oval.
The lighting device that the utility model technical scheme is provided; Adopt a switch block to unify to control each light emitting pixel in the luminescence unit; Both guaranteed lighting device can be because of the fault of certain light emitting pixel global failure, because reduced the number of switch block, can effectively reduce the non-uniform light that causes by different switch block property differences simultaneously; Improve aperture opening ratio and yield, thereby significantly improve the illuminating effect of lighting device.
Description of drawings
The structural representation of the existing OLED lighting device of Fig. 1;
The structural representation of the OLED lighting device that the existing TFT of Fig. 2 drives;
The illuminator structure sketch map of Fig. 3 the utility model embodiment 1;
The luminescence unit structural representation of Fig. 4 A the utility model embodiment 1;
The light emitting pixel structural representation of Fig. 4 B the utility model embodiment 1;
The luminescence unit structural representation of Fig. 5 the utility model embodiment 2.
Embodiment
For making the foregoing of the utility model more obviously understandable, hereinafter is special lifts preferred embodiment, and combines accompanying drawing to elaborate as follows.
Embodiment 1
Fig. 3 is the illuminator structure sketch map of the utility model embodiment 1; As shown in the figure; Lighting device in the present embodiment comprises a planar substrates 301; With luminous component 302 formed thereon, luminous component comprises plurality of luminescence units (Fig. 3 is not shown), and the package parts 303 of protection luminous component.Each luminescence unit comprises 1 switch block (TFT) and 4 light emitting pixels in the present embodiment; Luminescence unit prepares process to be explained with reference to Fig. 4 A and 4B; On a planar glass substrate 401, prepare earlier thin-film transistor (TFT) array; Each TFT402 is arranged on substrate, and sets out each position of luminescence unit 403 on substrate.On the TFT substrate of last step preparation, prepare anode 405, organic function layer 406 and negative electrode 407 (Fig. 4 A is not shown) successively and form OLED light emitting pixel 404; Wherein anode is processed by sputter tin indium oxide (ITO) material; Organic function layer adopts the material preparation of vapor deposition white-light organic light-emitting; Negative electrode adopts evaporation metal silvery to get, scan line 408 vertical each other with data wire 409 and on electric independence.Shown in Fig. 4 B, each light emitting pixel 404 is separate, and promptly the anode 405 of different light emitting pixels, organic function layer 406 and negative electrode 407 are spaced from each other respectively.Because the OLED device is very sensitive to steam, oxygen, weather easily, after the preparation of completion luminous component, also need encapsulate to protect it not receive the water oxygen attack luminous component.4 light emitting pixels 404 in each luminescence unit 403 are arranged in the present embodiment; The anode of each light emitting pixel all through contact conductor and under it TFT of luminescence unit be electrically connected; The minus earth (not shown), each light emitting pixel of same like this luminescence unit is by the unified control of same TFT.When lighting device is worked, the TFT conducting of each luminescence unit, it is luminous that each light emitting pixel is begun, and realizes illumination, because each light emitting pixel is separate, even therefore certain light emitting pixel breaks down, also can not cause entire lighting device to lose efficacy.Simultaneously, owing to adopt a TFT to control the structure of a plurality of light emitting pixels, thereby guaranteed the uniformity of luminance of each light emitting pixel in the luminescence unit, reduced because the luminosity that the property difference of TFT causes is uneven.
Embodiment 2
Fig. 5 is the luminescence unit structural representation of the utility model embodiment 2; As shown in the figure; Each luminescence unit 501 comprises 502 and 6 light emitting pixels 503 of 1 switch block (TFT) in the present embodiment, and 6 light emitting pixels 503 in each luminescence unit 501 are arranged in the present embodiment, the anode of each light emitting pixel all through contact conductor and under it TFT of luminescence unit be electrically connected; Minus earth, each light emitting pixel of same like this luminescence unit is by the unified control of same TFT.Other are all with embodiment 1.
Substrate shape in the embodiment is not limited to rectangle, also can do different shape conversion according to the appearance and modeling of illuminating product, like shapes such as circle, ellipses.Be example only among the above embodiment with the white illumination device; Therefore the organic function layer of luminous component adopts the white-light organic light-emitting material preparation to form; The utility model also can be according to the design demand of illuminating product, and vapor deposition has the organic function layer of different luminosities, realizes the illumination of different colours light; Be not limited to monochromatic illumination, also can be colour.Organic function layer is not limited to one deck organic material in the utility model, except organic luminous layer can also comprise one deck or multilayer in electron injecting layer, electron transfer layer, hole injection layer, the hole transmission layer, is referred to as organic function layer in the utility model.
Though the utility model is to disclose as above than preferable embodiment; Yet it is not in order to limit the utility model; Anyly be familiar with this technological personage, in spirit that does not break away from the utility model and scope, when doing various changes and retouching; Therefore, the protection range of the utility model is as the criterion when the claim with application defines.
Claims (10)
1. lighting device; Comprise a substrate, and be arranged at luminous component on the substrate, it is characterized in that; Said luminous component comprises plurality of luminescence units; Each luminescence unit comprises a switch block and at least two light emitting pixels, and the said light emitting pixel of each of same luminescence unit is controlled by said switch block.
2. a kind of lighting device as claimed in claim 1, said switch block are thin-film transistor.
3. a kind of lighting device as claimed in claim 2, said thin-film transistor is arranged on substrate.
4. a kind of lighting device as claimed in claim 1, said luminous component are organic electroluminescence device.
5. a kind of lighting device as claimed in claim 4, said luminous component are monochromatic organic electroluminescence device.
6. a kind of lighting device as claimed in claim 5, said luminous component are white color organic electroluminescence device.
7. a kind of lighting device as claimed in claim 1, said luminescence unit is arranged on base plan.
8. a kind of lighting device as claimed in claim 1, the said light emitting pixel of each of same luminescence unit is arranged.
9. a kind of lighting device as claimed in claim 1, said substrate are planar substrates.
10. a kind of lighting device as claimed in claim 9, said substrate are rectangle, circle or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120307832XU CN202269044U (en) | 2011-08-23 | 2011-08-23 | Illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120307832XU CN202269044U (en) | 2011-08-23 | 2011-08-23 | Illuminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202269044U true CN202269044U (en) | 2012-06-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120307832XU Expired - Lifetime CN202269044U (en) | 2011-08-23 | 2011-08-23 | Illuminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202269044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228290A (en) * | 2014-06-27 | 2016-01-06 | 力志国际光电股份有限公司 | Organic light-emitting diode illuminator |
-
2011
- 2011-08-23 CN CN201120307832XU patent/CN202269044U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228290A (en) * | 2014-06-27 | 2016-01-06 | 力志国际光电股份有限公司 | Organic light-emitting diode illuminator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |