CN100338974C - Frequency controlled color variable screen of single inorganic powder field luminescent material - Google Patents
Frequency controlled color variable screen of single inorganic powder field luminescent material Download PDFInfo
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- CN100338974C CN100338974C CNB200410042592XA CN200410042592A CN100338974C CN 100338974 C CN100338974 C CN 100338974C CN B200410042592X A CNB200410042592X A CN B200410042592XA CN 200410042592 A CN200410042592 A CN 200410042592A CN 100338974 C CN100338974 C CN 100338974C
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- inorganic powder
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- electroluminescent material
- color
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- 239000000463 material Substances 0.000 title claims abstract description 46
- 239000000843 powder Substances 0.000 title claims abstract description 27
- 239000011572 manganese Substances 0.000 claims abstract description 29
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 7
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052984 zinc sulfide Inorganic materials 0.000 claims abstract 12
- 239000005083 Zinc sulfide Substances 0.000 claims abstract 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229910052771 Terbium Inorganic materials 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 2
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000003086 colorant Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 238000005401 electroluminescence Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000004020 luminiscence type Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229910002601 GaN Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 206010019133 Hangover Diseases 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
一种单一无机粉末场致发光材料的频控变色屏，涉及一种变色场致发光显示屏。它的结构依次为：铝电极(1)，场致发光层(2)，ITO电极(3)，玻璃衬底(4)。其场致发光层(2)由混入环氧树脂中的具有两类杂质的、发光寿命小于1ms的无机粉末场致发光材料：以铜Cu，锰Mn共激活的硫化锌：ZnS:Cu，Mn，其摩尔配比ZnS∶Cu∶Mn＝100∶1∶1制成，驱动电压：交流100～200V，频率为50～50000Hz，频率可调。本发明具有：采用单一无机粉末场致发光材料即可得到不同颜色的发光，能与无机彩色场致发光材料匹配，既可实现稳态，又可实现动态显示，工艺简单、成本低、驱动方便。
The invention discloses a frequency-controlled color-changing screen of a single inorganic powder electroluminescent material, relating to a color-changing electroluminescent display screen. Its structure is sequentially: aluminum electrode (1), electroluminescence layer (2), ITO electrode (3), glass substrate (4). Its electroluminescent layer (2) is made of inorganic powder electroluminescent material mixed in epoxy resin with two types of impurities and with a luminous lifetime of less than 1 ms: zinc sulfide co-activated with copper Cu and manganese Mn: ZnS:Cu, Mn , the molar ratio ZnS: Cu: Mn = 100:1:1 is made, the driving voltage: AC 100-200V, the frequency is 50-50000Hz, and the frequency is adjustable. The present invention has the advantages that different colors of light can be obtained by using a single inorganic powder electroluminescent material, which can be matched with the inorganic color electroluminescent material, can realize both steady state and dynamic display, simple process, low cost and convenient driving .
Description
Technical field
The present invention relates to a kind of variable color el display panel, it is only made with a kind of inorganic powder electroluminescent material, is applicable to colored the demonstration.
Background technology
Colorize is one of main technical requirements in the modern Display Technique, and Display Technique has stable state and dynamic two levels, and colorize also correspondingly is divided into stable state and dynamic two kinds.The technical scheme that their are realized is identical, but dynamically show higher to the requirement of material, it require luminous during or the life-span be smaller than the time that shows piece image.Speed can be also faster than the replacing speed of each width of cloth displayed image over time for the glow color of luminescent screen like this.By the human eye visual persistence effect luminous to transient state, it makes the people feel that image remains continually varying, rather than discrete.
The glow color of the variable color luminescent screen of stable state is fixed, and just luminous intensity can change.At present, obtain different glow colors following several class methods are arranged.
1. the colour that utilizes three primary colors (three kinds of colors of red, green, blue) luminescent material coupling to form, i.e. luminous or panchromatic (can match any color of occurring in nature) that can change three kinds of fixed wave length polishing wax intensity.
2. only allow with the method that filters that the light of certain glow color passes through in the white light.
3. utilize the mixing of two kinds of colour light emittings, obtain new glow color, for example green and yellow is matched to yellow green.
4. its blue-light-emitting of sending excites the material of another kind of glow color again, makes the luminous and remaining blue light that excites that do not cause that obtains like this, to obtain other color.For example: utilize the very strong blue light of gallium nitride GaN to obtain white light with being subjected to it to excite the luminescent material coupling of jaundice light.The characteristics of this technology are: the glow color of (1) every kind of material is fixed, and synthesizes luminous color or full frame luminous color by the relative intensity that changes them to change.(2) adopt two or more luminescent materials at least; (3) luminous is stable state, is quasi-stationary at least, promptly excites the decay that stops the luminous light intensity in back slower, though or very fast, but still do not reach dynamic speed of displaying requirement.
Luminescent screen glow color in use changes in time in dynamic variable color, the speed that changes is faster than the replacing speed (frame frequency 50Hz or slightly fast) of each width of cloth image, by the human eye persistence of vision luminous to transient state, people feel that image is continuous, and not flicker.The method that it uses is still the various technology of saying above, still is to use the material of two or more different fixing glow colors.Just these materials luminous duration after exciting end is smaller than image and changes the width of cloth time, avoids hangover.These two kinds of technology have been used for the Plasma Display of luminescence generated by light, the trichromatic energy saving lamp of luminescence generated by light, the color TV of cathode-ray luminescence.It can be used for flat panel display again, as the monitor of computer, and and for example electroluminescent color line screen.Stable state and dynamic variable color have mutually and exist together, and need two or three material that the different fixing glow color arranged equally.They have the principle difference again, and dynamically the luminous duration of variable color must be very short.The luminescent material that can use under current intelligence also can use under stable situation.But available screen differs and uses under current intelligence surely under stable situation.The characteristics of these materials are that the glow color of various materials is all fixed.The key of variable color is to change the luminous intensity of different colours.
Number of patent application: 200410000195.6, denomination of invention: the material that " the variable color electroluminescent panel of single organic material " used is an organic electroluminescent material, and it at room temperature gets rid of film and make; Spectrum change scope: 410nm～580nm; Service orientation: make organic color EL screen; It uses two power supplys, can independently change voltage, to change glow color and brightness.And existing powder electroluminescence screen is monochromatic, can not variable color.
Summary of the invention
Technology solved by the invention is: only with single inorganic powder electroluminescent material, change the frequency that exchanges, can obtain the colored hair optical screen that spectrum changes in 520nm～580nm scope, it also can be made into new colored variable electroluminescent panel with other colorful light-emitting web shaped material.
Technical scheme of the present invention:
The frequency control variable color screen of single inorganic powder electroluminescent material, its structure is followed successively by: aluminium electrode, electroluminescent layer, ITO electrode, glass substrate.Its electroluminescent layer by sneak in the epoxy resin have two class impurity, luminescent lifetime makes AC driving, frequency adjustable less than the inorganic powder electroluminescent material of 1ms.
Beneficial effect of the present invention: adopt single electroluminescent material can obtain the luminous of different colours, can mate, again because the material luminescent lifetime is shorter than 10 with the inorganic color electroluminescent material
-3Second, both can realize stable state, can realize dynamic demonstration again, and technology is simple, cost is low, driving is convenient.
Description of drawings
The frequency control variable color screen structural representation of the single inorganic powder electroluminescent material of Fig. 1.
Among the figure: aluminium electrode 1, electroluminescent layer 2, ITO electrode 3, glass substrate 4
The ratio of two kinds of colour light emitting intensity of Fig. 2 changes with driving frequency
Among the figure: ordinate is luminous strength ratios green, two kinds of colors of orange, I
Cu/ I
MnAbscissa is the logarithm value logF of ac power frequency F.
Embodiment
Fig. 1 is the frequency control variable color screen structural representation of single inorganic powder electroluminescent material, and its structure is followed successively by: aluminium electrode 1, electroluminescent layer 2, ITO electrode 3, glass substrate 4, AC driving, frequency adjustable.
Electroluminescent layer 2 by sneak in the epoxy resin have two class impurity, luminescent lifetime makes AC driving, frequency adjustable less than the inorganic powder electroluminescent material of 1ms.
Described have two class impurity, luminescent lifetime less than the inorganic powder luminescent material of 1ms for copper Cu, the coactivated zinc sulphide of manganese Mn: ZnS:Cu, Mn, its mole proportioning: ZnS: Cu: Mn=100: 1: 1.
Described have two class impurity, luminescent lifetime less than the inorganic powder luminescent material of 1ms for cerium Ce, the coactivated zinc sulphide of manganese Mn: ZnS:Ce, Mn, its mole proportioning: ZnS: Ce: Mn=100: 0.5: 1.
Described have two class impurity, luminescent lifetime less than the inorganic powder luminescent material of 1ms for terbium Tb, the coactivated zinc sulphide of manganese Mn: ZnS:Tb, Mn, its mole proportioning: ZnS: Tb: Mn=100: 0.5: 1.
The frequency control variable color screen of single inorganic powder electroluminescent material only drives with an AC power, and voltage is: 100～200V, frequency is: 50～50000Hz, glow color changes with the change of frequency.
The glow color of the frequency control variable color screen of single inorganic powder electroluminescent material changes with the variation of frequency, has realized variable color, as shown in Figure 2.
The theoretical foundation of invention:
Luminescent material is if contain two luminescence centers, luminous life-span of these two luminescence centers is different in size, because when frequency increases, the life-span luminous growth of weak point is fast, the life-span luminous growth of length is slow, and the ratio of the luminous intensity of two kinds of colors increases with the increase of frequency, glow color thereby variation, their difference are big more, and the excursion of glow color is wide more.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410042592XA CN100338974C (en) | 2004-05-26 | 2004-05-26 | Frequency controlled color variable screen of single inorganic powder field luminescent material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410042592XA CN100338974C (en) | 2004-05-26 | 2004-05-26 | Frequency controlled color variable screen of single inorganic powder field luminescent material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1585579A CN1585579A (en) | 2005-02-23 |
| CN100338974C true CN100338974C (en) | 2007-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200410042592XA Expired - Fee Related CN100338974C (en) | 2004-05-26 | 2004-05-26 | Frequency controlled color variable screen of single inorganic powder field luminescent material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893508A (en) * | 2010-07-02 | 2010-11-24 | 北京交通大学 | Method for measuring the luminescent period of organic electroluminescence with variable frequency alternating current power supply |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273774A (en) * | 1992-12-31 | 1993-12-28 | Osram Sylvania Inc. | Method of making zinc sulfide electroluminescent phosphor particles |
| JP2003282269A (en) * | 2002-02-13 | 2003-10-03 | Shunichi Uesawa | Electroluminescent device |
| CN1451714A (en) * | 2002-04-19 | 2003-10-29 | 三星Sdi株式会社 | Yellow zinc sulfide based inorganic luminescent material, mfg. process thereof and display device using same |
-
2004
- 2004-05-26 CN CNB200410042592XA patent/CN100338974C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273774A (en) * | 1992-12-31 | 1993-12-28 | Osram Sylvania Inc. | Method of making zinc sulfide electroluminescent phosphor particles |
| JP2003282269A (en) * | 2002-02-13 | 2003-10-03 | Shunichi Uesawa | Electroluminescent device |
| CN1451714A (en) * | 2002-04-19 | 2003-10-29 | 三星Sdi株式会社 | Yellow zinc sulfide based inorganic luminescent material, mfg. process thereof and display device using same |
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| Publication number | Publication date |
|---|---|
| CN1585579A (en) | 2005-02-23 |
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Owner name: SHENZHEN JINGHUA DISPLAYS CO., LTD Free format text: FORMER OWNER: BEIJING JIAOTONG UNIVERSITY Effective date: 20090327 |
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Effective date of registration: 20090327 Address after: 6 floor, building 511, Bagualing, Shenzhen, Futian District Patentee after: Shenzhen Jinghua Displays Co., Ltd. Address before: Beijing city Haidian District Xizhimen Shangyuan Village No. 3 Patentee before: Beijing Jiaotong University |
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Granted publication date: 20070919 Termination date: 20200526 |