CN103645581A - Display panel and manufacturing method thereof - Google Patents
Display panel and manufacturing method thereof Download PDFInfo
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- CN103645581A CN103645581A CN201310576539.7A CN201310576539A CN103645581A CN 103645581 A CN103645581 A CN 103645581A CN 201310576539 A CN201310576539 A CN 201310576539A CN 103645581 A CN103645581 A CN 103645581A
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- display panel
- blue light
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- glass cover
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- 238000004020 luminiscence type Methods 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 6
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- 238000004528 spin coating Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 6
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- 229920002120 photoresistant polymer Polymers 0.000 description 4
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- NCYCYZXNIZJOKI-OVSJKPMPSA-N Retinaldehyde Chemical compound O=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C NCYCYZXNIZJOKI-OVSJKPMPSA-N 0.000 description 1
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel. The display panel can be an LCD display panel or an OLED display panel and mainly comprises a glass substrate, a glass cover plate and a light-emitting unit clamped between the glass substrate and the glass cover plate. A filtering layer used for filtering blue light within a certain preset wave band range is arranged in the light output direction of blue light materials in the light-emitting unit. After the filtering layer filters the blue light, within a certain preset wave band range, generated by the display panel, damage to the human eyes from the high-energy shortwave blue light can be avoided.
Description
Technical field
The present invention relates to a kind of display panel and preparation method thereof, espespecially a kind of display panel with blue light filtration result and preparation method thereof.
Background technology
Day by day universal along with electronic product, can or can not just not stop about long-term use electronic product in unhealthful arguement.And arguement concentrates on the radiation problem of display panel in electronic product with the focus major part of research.
LCD and OLED technology is day by day perfect at present, has substituted gradually original CRT monitor.Compare CRT monitor, the radiation meeting that LCD discharges with OLED is relative little a lot.But the radiation of LCD and oled panel is not still well solved for the injury problem of human eye.
Visible ray is also electromagnetic a kind of, and electromagnetic wave is exactly electromagnetic radiation.Thereby in a broad sense, visible ray is a kind of electromagnetic radiation namely, just it has been generally acknowledged that, visible ray is little to harm.Visible ray refers to electromagnetic wave spectrum medium wavelength in 390-760 nanometer range and is macroscopic electromagnetic radiation.In various visible rays, blue light wavelength is at 400-500 nanometer (Nanometer; NM), between, scientific research confirms: retina cell is contained a kind of abnormal retinene, and English name is A2E.A2E has two absorption peaks, a 335NM in ultraviolet region, and another is at the 435NM of blue light region.A2E is not having to have toxicity under the condition of light dark to retinal pigment epithelium.Under illumination condition, its toxicity increases widely.In the light source of the most popular LCD and OLED, contain abnormal high energy shortwave blue light at present.So-called high energy shortwave blue light, current understanding is exactly to be positioned at the wavelength of A2E absorption peak at the blue light of the high strength high brightness of 435NM-440NM.
High energy shortwave blue light is to amphiblestroid detrimental effect, and the first step is because A2E has absorption peak in blue light region, so high energy shortwave blue light can excite, makes it discharge radical ion.Thereby second step is these radical ions have been increased it and the damage effect of retinal pigment epithelium is caused to the atrophy of retinal pigment epithelium, then cause the death of photaesthesia cell.The function of photaesthesia cell is to accept incident light light signal is changed into electric signal, and the latter passes to imaging after brain by optic nerve again.The death of photaesthesia cell will cause eyesight to decline and even completely lose gradually.
Therefore, current display panel technology still has further improved necessity really.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of novel display panel is provided, for avoiding it to produce high energy shortwave blue light, human eye is damaged.
For solving the problems of the technologies described above, the invention discloses a kind of display panel, comprise glass substrate, glass cover-plate and be located in the luminescence unit between described glass substrate and glass cover-plate, wherein: in described luminescence unit, on the light direction of blue light emitting material, be provided with a filter layer for the default wavelength band of elimination (as≤440nm) blue light.
By this filter layer, the blue light that in display panel, blue light emitting material transmitting produces is preset to the filtering of wavelength band, thereby avoid the high energy shortwave blue light that is less than a certain preset wavelength (for example 440nm) to damage human eye.
Further improvement of the present invention is, described display panel is LCD display panel, OLED display panel or any appropriate panel.
Further improvement of the present invention is, described filter layer is one to be made in the logical filter layer of band at described glass cover-plate front or the back side.
Further improvement of the present invention is, the logical filter layer of described band is example evaporation or be sputtered in the multilayer dielectric film of glass cover-plate in this way, or for being spun on the blue light resistance of glass cover-plate.
The invention also discloses a kind of method of making display panel, described method for making comprises the following steps: on the light direction by blue light emitting material in the luminescence unit of described display panel, a filter layer is set, for the blue light in a certain default wavelength band of elimination.
Further improvement of the present invention is, described display panel is LCD display panel.
Further improvement of the present invention is, described display panel is OLED display panel.
Further improvement of the present invention is, by front or the logical filter layer of back side making one band of the glass cover-plate at described display panel, for the blue light in a certain default wavelength band of elimination.
Further improvement of the present invention is, thus by example on described glass cover-plate in this way evaporation or sputter multilayer dielectric film form the logical filter layer of described band, thereby or form the logical filter layer of described band by spin coating blue light resistance on described glass cover-plate.
Accompanying drawing explanation
Fig. 1 is the first better embodiment structural representation of display panel in the present invention;
Fig. 2 is the second better embodiment structural representation of display panel in the present invention.
Embodiment
For clear structure of the present invention and the principle of work described, below in conjunction with accompanying drawing and preferably specific embodiment the invention will be further described.
First take oled panel as example, shown in Figure 1, the first better embodiment structural representation for OLED display panel in the present invention, it mainly comprises a glass substrate 10, one face glass 20 and be located in glass substrate 10 and face glass 20 between luminescence unit 30, this luminescence unit 30 mainly comprises the thin film transistor (TFT) 31(TFT for driving) and for luminous ray structure layer 32, this ray structure layer 32 further comprises again anode (ITO), hole transmission layer (HTL), luminescent layer (EL), electron transfer layer (ETL) and negative electrode (Cathode) etc.When supplying power to appropriate voltage, anodal hole and negative electrode electric charge will combinations in luminescent layer, produce light, according to the different red, green and blue RGB three primary colors that produce of its formula, form basic color.Driving and principle of luminosity about oled panel are known technology, therefore no longer launch to repeat at this.
In the first better embodiment structure of the present invention, the logical filter layer 21 of one band is set on the light direction of blue light emitting material 321 in the luminescence unit 30 of display panel, by the shortwave part in logical filter layer elimination blue light emitting material 321 emission wavelengths of this band, the photon that makes wavelength be less than a certain preset value can not pass through, thus the injury of the blue light of having avoided high strength high brightness to human eye.In the present embodiment, the logical filter layer 21 of this band is directly made in the back side of glass cover-plate, and this method for making can selective evaporation or sputter multilayer dielectric film, also can select spin coating blue light resistance.
First, the example in this way multilayered medium membrane technology of evaporation or sputter is to utilize many incident diffraction of light, the luminous energy of wavelength in a certain preset range is passed through, and the light of other wavelength is reflected, thereby the reflectance spectrum of capable of regulating blue-light device, filter shortwave photon.For example: blue-light device emission spectrum scope is 400nm-500nm, peak value ripple is 460nm, and as by after the bandpass filter of a 440-500nm scope, its spectral range becomes 440-500nm, purifying spectrum, filtering harmful shortwave.This 440-500nm bandpass filter multicoating structure is chosen as: HLH2LHLHLHLH2LHLH, totally 15 layers, wherein L and H respectively representative thickness be low-index layer and the high refractive index layer of 1/4 wavelength, the centre wavelength of this bandpass filter is 470nm, therefore corresponding thickness is 117.5nm; 2L representative thickness is the low-index layer of 1/2 wavelength, and the centre wavelength of this bandpass filter is 470nm, therefore corresponding thickness is 235nm.Wherein the low-index layer in this case can be selected SiO
2(refractive index n=1.45), high refractive index layer can be selected TiO
2(refractive index n=2.3).Other multi-layer film structure that can realize same function also can be used in this case.
Secondly, the making of blue light resistance can adopt Pigments method, similar semi-conductive gold-tinted micro-photographing process, first pigment-dispersing type chromatic photoresist is coated on glass cover-plate, through photoresistance pre-baked (Pre-bake), (Aligned) aimed in exposure, develops (Developed), photoresistance is peeled off (Stripping), and flow processs such as hard roasting (Post-bake) is made this blue light resistance.The related blue light resistance of scheme (Photo Resist) is a kind of photosensitive material, is extensively used in the micro-photographing process of semiconductor and TFT-LCD panel production line, and principal ingredient comprises photoresistance pigment, resin, solvent and other adjuvant; Wherein resin helps the dispersion of pigment and to the adhering to of glass cover-plate, and the physical strength of chromatic photoresist is provided, and solvent determines coating and film-forming quality, and other adjuvant makes chromatic photoresist reach desirable Newtonian fluid.In this case, if blue-light device emission spectrum scope is 400nm-500nm, peak value ripple is 460nm, selects to see through the blue light resistance that wavelength band is 440-500nm and can modify its emission spectrum, and filtering is harmful to shortwave.
Refer to again shown in Fig. 2, the second preferred embodiment mode structural representation of display panel in the present invention, its structure is roughly identical with the first above-mentioned preferred embodiment, and positive and its area that difference is the narrow bandpass filter layer 21 to be directly made in glass cover-plate is to be greater than this blue light emitting material 321.Specific embodiments is identical with the second better case study on implementation.
Further, when being applicable to LCD display panel, can use equally such scheme to make the logical filter layer of band at LCD display panel glass, play the effect of filtering to the harmful specific band blue light of human eye.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thereby some details in embodiment should not form limitation of the invention, the present invention will be usingd scope that appended claims defines as protection scope of the present invention.
Claims (16)
1. a display panel, comprise glass substrate, glass cover-plate and be located in the luminescence unit between described glass substrate and glass cover-plate, it is characterized in that: in described luminescence unit, on the light direction of blue light emitting material, being provided with a filter layer for blue light in the default wavelength band of elimination.
2. display panel as claimed in claim 1, is characterized in that: described display panel is LCD display panel.
3. display panel as claimed in claim 1, is characterized in that: described display panel is OLED display panel.
4. display panel as claimed in claim 1, is characterized in that: described filter layer is that a band that is made in described glass cover-plate front or the back side leads to filter layer.
5. display panel as claimed in claim 4, is characterized in that: the logical filter layer of described band is evaporation or is sputtered in the multilayer dielectric film on glass cover-plate.
6. display panel as claimed in claim 4, is characterized in that: the logical filter layer of described band is the blue light resistance being spun on glass cover-plate.
7. display panel as claimed in claim 1, is characterized in that: the wave band of the blue light of described elimination is≤440nm.
8. display panel as claimed in claim 7, is characterized in that: the wave band of the blue light of described elimination is≤435nm.
9. a method for making for display panel, is characterized in that described method for making comprises the following steps: on the light direction by blue light emitting material in the luminescence unit of described display panel, a filter layer is set, for the blue light in the default wavelength band of elimination.
10. method for making as claimed in claim 9, is characterized in that: described display panel is LCD display panel.
11. method for makings as claimed in claim 9, is characterized in that: described display panel is OLED display panel.
12. method for makings as claimed in claim 9, is characterized in that: front or the back side by the glass cover-plate at described display panel make the logical filter layer of a band, for the blue light in the default wavelength band of elimination wavelength.
13. method for makings as claimed in claim 12, is characterized in that: thus by evaporation on described glass cover-plate or sputter multilayer dielectric film, form the logical filter layer of described band.
14. method for makings as claimed in claim 12, is characterized in that: thus by spin coating blue light resistance on described glass cover-plate, form the logical filter layer of described band.
15. method for makings as claimed in claim 9, is characterized in that: by the blue light of described filter layer elimination wave band≤440nm.
16. method for makings as claimed in claim 15, is characterized in that: by the blue light of described filter layer elimination wave band≤435nm.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576539.7A CN103645581A (en) | 2013-11-18 | 2013-11-18 | Display panel and manufacturing method thereof |
| TW102146330A TW201520648A (en) | 2013-11-18 | 2013-12-16 | Display panel and the manufacturing method thereof |
| JP2014216047A JP2015099364A (en) | 2013-11-18 | 2014-10-23 | Display panel and manufacturing method of the same |
| KR1020140149485A KR20150057972A (en) | 2013-11-18 | 2014-10-30 | Display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576539.7A CN103645581A (en) | 2013-11-18 | 2013-11-18 | Display panel and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103645581A true CN103645581A (en) | 2014-03-19 |
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ID=50250823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310576539.7A Pending CN103645581A (en) | 2013-11-18 | 2013-11-18 | Display panel and manufacturing method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2015099364A (en) |
| KR (1) | KR20150057972A (en) |
| CN (1) | CN103645581A (en) |
| TW (1) | TW201520648A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150309368A1 (en) * | 2014-04-23 | 2015-10-29 | Hon Hai Precision Industry Co., Ltd. | Display device having eye protection function |
| CN105182595A (en) * | 2015-08-28 | 2015-12-23 | 京东方科技集团股份有限公司 | Display substrate, display device and manufacturing method thereof |
| WO2017113042A1 (en) * | 2015-12-31 | 2017-07-06 | 林伯刚 | Blue light harm-reducing device and method thereof |
| CN108663853A (en) * | 2018-04-25 | 2018-10-16 | 昆山龙腾光电有限公司 | Liquid crystal display panel, liquid crystal display device and liquid crystal display panel preparation method |
| CN111341811A (en) * | 2020-03-06 | 2020-06-26 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102738008B1 (en) * | 2019-08-06 | 2024-12-03 | 엘지디스플레이 주식회사 | Light emitting display apparatus |
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| JP2005332589A (en) * | 2004-05-18 | 2005-12-02 | Hitachi Displays Ltd | Organic electroluminescence display device |
| CN1731905A (en) * | 2005-08-23 | 2006-02-08 | 悠景科技股份有限公司 | Low power consumption full-color organic electroluminescent display device |
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| CN105182595B (en) * | 2015-08-28 | 2019-10-18 | 京东方科技集团股份有限公司 | Display base plate, display device and preparation method thereof |
| WO2017113042A1 (en) * | 2015-12-31 | 2017-07-06 | 林伯刚 | Blue light harm-reducing device and method thereof |
| CN108663853A (en) * | 2018-04-25 | 2018-10-16 | 昆山龙腾光电有限公司 | Liquid crystal display panel, liquid crystal display device and liquid crystal display panel preparation method |
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Also Published As
| Publication number | Publication date |
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| JP2015099364A (en) | 2015-05-28 |
| KR20150057972A (en) | 2015-05-28 |
| TW201520648A (en) | 2015-06-01 |
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