CN1242292C - Light interference type colour display panel and light interference regulating element - Google Patents
Light interference type colour display panel and light interference regulating element Download PDFInfo
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- CN1242292C CN1242292C CN 03100366 CN03100366A CN1242292C CN 1242292 C CN1242292 C CN 1242292C CN 03100366 CN03100366 CN 03100366 CN 03100366 A CN03100366 A CN 03100366A CN 1242292 C CN1242292 C CN 1242292C
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Abstract
The present invention relates to a light interference type color display panel composed of a color filter base plate, a pattern support layer, a plurality of first electrodes, a plurality of optical films and a plurality of second electrodes, wherein the pattern support layer and the first electrodes are arranged on the color filter base plate, and the pattern support layer is positioned among first electrodes; the optical films are arranged on the first electrodes; the second electrodes are arranged above the first electrodes and are supported by the pattern support layer; the same air gaps are formed between the second electrodes and the first electrodes. Because the requirements of colorization is met by the color filter base plate, the air gaps between the second electrodes and the first electrodes in each light interference regulating element are same designed so that the panel is simple to manufacture.
Description
Technical field
The invention relates to a kind of optical interference color display panel and interference of light regulating element, and particularly relevant for a kind of optical interference color display panel and interference of light regulating element that adopts design of single clearance and colored filter film.
Background technology
Have flat-panel screens in light weight, thin thickness at present, for example LCD (LCD), organic electroluminescent display device (OLED), plasma display (PDP) etc. are widely used in the daily life.Wherein, LCD has become the main flow of display gradually, but LCD still has many problems, for example be that the visual angle is wide inadequately, response time is fast inadequately, need can full-colorization by colored filter, and needs use polaroid and make the light source utilization ratio not good, and then cause the more problem of power consumption or the like of backlight module.
Existing now a kind of light interference type display panel is developed, and it is made of the interference of light regulating element of a plurality of arrayed (Optical Interference Modulator).Wherein, interference of light regulating element mainly is made of a transparency electrode, a reflecting electrode and a supporting layer in order to the supporting reflex electrode.Support by supporting layer, can be at interval between reflecting electrode and the transparency electrode a specific clearance (Air Gap), light is entered after the interference of light regulating element by the transparency electrode end, can and be incident on second electrode through the clearance, then reflect from the transparency electrode end by second electrode again.Because light can be subjected to interference (Interference) in various degree in different clearances, and then presents different color light, as ruddiness, green glow and blue light.In addition, reflecting electrode in the interference of light regulating element must be in conjunction with MEMS (micro electro mechanical system) (Micro Electro Mechanical System, MEMS) design,, and then reach the purpose of demonstration so that interference of light regulating element can switch between On/Off (on/off) two states.
The above-mentioned light interference type display panel that is made of interference of light regulating element does not need framework color filter film and Polarizer can show suitable colour picture, can save and use the required cost of colored filter.In addition, the above-mentioned light interference type display panel that is made of interference of light regulating element has the characteristic of low electric power power consumption, rapid answer time and bistable state (Bi-stable), therefore help the exploitation of low electric power energy-consuming product, and then be applied on the product of Portable (portable), for example be mobile phone (Mobile Phone), PDA(Personal Digital Assistant), e-book (e-book) etc.
Fig. 1 is the synoptic diagram of known optical interference color display panel.Please refer to shown in Figure 1ly, optical interference color display panel 100 is made of a substrate 110, a patterning supporting layer 120, a plurality of first electrode 130, a plurality of optical thin film 140 and a plurality of second electrode 150.Wherein, substrate 110 transparency carrier of glass substrate or other transparent material normally; Patterning supporting layer 120 is disposed on the substrate 110, and patterning supporting layer 120 is in order to support the edge of second electrode 150; First electrode 130 is disposed on the substrate 110, and this first electrode 130 is a transparency electrode, its material for example be indium tin oxide (Indium Tin Oxide, ITO); Optical thin film 140 is disposed on first electrode 130, and optical thin film 140 normally is made up of multilayer high-dielectric coefficient and the mutual storehouse of multilayer low-k; Second electrode 150 is disposed at patterning supporting layer 120 tops, and supports by patterning supporting layer 120, and this second electrode 150 normally has the metal material of light reflection.
Known optical interference color display panel is made of the interference of light regulating element with different clearances (Air Gap) (interference modulator).By among Fig. 1 as can be known, in the different interference of light regulating elements, the design of clearance and inequality between 130 between second electrode 150 and first electrode, and in order to reach the colored purpose that shows, clearance in the interference of light regulating element can be designed to three kinds of clearance d1, d2, d3 usually, wherein, the clearance is that the interference of light regulating element of d1 for example can show ruddiness; The clearance is that the interference of light regulating element of d2 for example can show blue light; And being the interference of light regulating element of d3, the clearance for example can show green glow.In other words, when light is penetrated substrate 110, first electrode 130, optical thin film 140 in regular turn by the external world after, can be incident on second electrode 150 through different clearance d1, d2, d3, then reflect substrate 110 when outer by second electrode 150 again, be subjected to interference (Interference) in various degree and present ruddiness, green glow and blue light.
From the above, known optical interference color display panel mainly is that the interference of light regulating element by three kinds of different interstitial gap presents ruddiness, green glow and blue light, and its shortcoming is as follows:
1. the interference of light regulating element of different interstitial gap must separately carry out on making, and its technology is quite loaded down with trivial details and cause burden on the cost.
2. the interference of light regulating element of different interstitial gap must separately carry out on making, and makes Production Time elongate thereupon, and then influences production capacity (throughput).
3. the interference of light regulating element of different interstitial gap must separately carry out on making, and makes technology tediously long and complicated, so often cause product percent of pass low.
Summary of the invention
Therefore, purpose of the present invention is providing a kind of optical interference color display panel and interference of light regulating element exactly, by designing same clearance and cooperating colored filter film,, and make technology more simple and easy so that display panel reaches colorful or full-color effect.
Based on above-mentioned purpose, the present invention proposes a kind of optical interference color display panel, and this optical interference color display panel is made of a colored filter substrate, a patterning supporting layer, a plurality of first electrode, a plurality of optical thin film and a plurality of second electrode.Wherein, the patterning supporting layer and first electrode all are disposed on the colored filter substrate, and the patterning supporting layer is on the zone between each first electrode, optical thin film then is disposed on first electrode, and second electrode is disposed at first electrode top, and live, so has identical clearance between second electrode and first electrode by the patterning support layer supports.
Based on above-mentioned purpose, the present invention proposes a kind of interference of light regulating element, and this interference of light regulating element is made of a substrate, a colored filter film, a patterning supporting layer, one first electrode, an optical thin film and one second electrode.Wherein, colored filter film is disposed on the substrate, and first electrode and patterning supporting layer are disposed on the colored filter film, and the patterning supporting layer for example is positioned at beyond the zone of first distribution of electrodes.Optical thin film then is disposed on first electrode, and second electrode is disposed at first electrode top, and lives by the case support layer supports, so have a clearance between second electrode and first electrode.
According to preferred embodiment of the present invention, colored filter substrate is made of a substrate, a black matrix and a plurality of colored filter film.Wherein, black matrix configuration is on substrate, and black matrix has a plurality of lattice points, and colored filter film is disposed on the substrate, and is positioned at each lattice point of black matrix.
According to preferred embodiment of the present invention, colored filter film for example is red filter film, green filter film or blue light filter film.Substrate for example is a transparency carrier, and its material for example is glass or high molecule plastic etc.First electrode for example is a transparency electrode, and its material for example is an indium tin oxide.Second electrode for example is a metal electrode, and its material for example is molybdenum, molybdenum alloy, chromium, aluminum or aluminum alloy etc.Optical thin film is formed by multilayer high-dielectric coefficient and the mutual storehouse of multilayer low-k.
Optical interference color display panel of the present invention and interference of light regulating element are because of utilizing the structure of same clearance and colored filter film, so that display panel represents colorful or full-color effect, and the design of single clearance will make the panel manufacturing process more simple and easy.
Description of drawings
Fig. 1 is the synoptic diagram of known optical interference color display panel; And
Fig. 2 is the synoptic diagram according to a preferred embodiment of the present invention optical interference color display panel.
100: optical interference color display panel
110: substrate
120: the patterning supporting layer
130: the first electrodes
140: the second electrodes
D1, d2, d3: clearance
200: optical interference color display panel
210: colored filter substrate
212: substrate
214: black matrix
216: colored filter film
216a: red filter film
216b: green filter film
216c: blue light filter film
220: the patterning supporting layer
230: the first electrodes
240: optical thin film
250: the second electrodes
D4: clearance
A: interference of light regulating element
Embodiment
Fig. 2 is the synoptic diagram according to a preferred embodiment of the present invention optical interference color display panel.Please refer to shown in Figure 2ly, optical interference color display panel 200 mainly is made of a colored filter substrate 210, a patterning supporting layer 220, a plurality of first electrode 230, a plurality of optical thin film 240 and a plurality of second electrode 250.
Colored filter substrate 210 is made of a substrate 212, one black matrix 214 and a plurality of colored filter film 216.Wherein, substrate 212 for example is a transparency carrier, and its material for example is glass, high molecule plastic or other transparent material.Black matrix 214 is disposed on the substrate 212, and black matrix 214 has a plurality of lattice points, and colored filter film 216 then is disposed on the substrate 212, and is positioned within the lattice point of black matrix 214.Above-mentioned colored filter film 216 for example comprises a plurality of red filter film 216a, a plurality of green filter film 216b and a plurality of blue light filter film 216c, and red filter film 216a, green filter film 216b, blue light filter film 216c can various kenels be arranged within the lattice point of black matrix 214, as kenels such as mosaic type, triangle layout type, bar row layout type, four pixel arrangement types.
Patterning supporting layer 220 is disposed at the top of the black matrix 214 of colored filter substrate 210, and patterning supporting layer 220 is in order to supporting the edge of second electrode 250, by among Fig. 2 as can be known, patterning supporting layer 220 for example is a plurality of columnar supporting bodies.In addition, the material of patterning supporting layer 220 for example is resin (resin) or other and voltinism and the stable material of rerum natura.
Optical thin film 240 is disposed on first electrode 230, and optical thin film 240 normally is made up of with the mutual storehouse of one deck second dielectric film 240b at least one deck first dielectric film 240a at least, and wherein the dielectric coefficient of the first dielectric film 240a and the second dielectric film 240b is inequality.
By among Fig. 2 as can be known, present embodiment mainly is to reach the effect that colorize shows by colored filter substrate 210, therefore can with between second electrode 250 among each interference of light regulating element A and first electrode between 230 clearance d4 be designed to identical.Because each interference of light regulating element A is corresponding to each colored filter film 216 configuration on the colored filter substrate 210, so the interference of light regulating element A of red filter film 216a and its top collocation can show ruddiness, the interference of light regulating element A collocation of green filter film 216b and its top can show green glow, and the interference of light regulating element A collocation of blue light filter film 216c and its top can show blue light.In other words, when light is penetrated colored filter film 216 on the colored filter substrate 210, first electrode 230, optical thin film 240 in regular turn by the external world after, can be incident on second electrode 250 through identical clearance d4, then reflect colored filter substrate 210 when outer by second electrode 150 again, can present color saturation (excitation) higher ruddiness, green glow and blue light respectively.
From the above, because second electrode 250 among the interference of light regulating element A is reflection materials, and possesses the favorable mechanical characteristic, when second electrode 250 and first electrode 230 are coupled to a bias voltage, second electrode 250 can move towards first electrode 230 because of electrical attraction, and then changes the clearance d4 among the interference of light regulating element A.In other words, by the change of air gap d 4 among the interference of light regulating element A, can allow each interference of light regulating element A (pixel) in the display panel switch between the state of On/Off (on/off).
Comprehensive the above, the present invention has following advantages at least:
1. optical interference color display panel of the present invention is because the sky of each interference of light regulating element The gas gap is all identical, and each interference of light regulating element can be made simultaneously, makes technology more capable simple and easy, So can reduce cost.
2. optical interference color display panel of the present invention is because the sky of each interference of light regulating element The gas gap is all identical, can avoid known need to repeat to make the time waste that causes, so can promote Production capacity (throughput).
3. optical interference color display panel of the present invention is because the sky of each interference of light regulating element The gas gap is all identical, makes technology more capable simple and easy, so the qualification rate of product can promote.
4. employed colored filter film in the optical interference color display panel of the present invention, because At present quite ripe technology, its obtain easily and excitation high, so the practicality height.
Claims (17)
1. optical interference color display panel is characterized in that it comprises:
One colored filter substrate;
One patterning supporting layer is disposed on this colored filter substrate;
A plurality of first electrodes are disposed on this colored filter substrate;
A plurality of optical thin films are disposed on those first electrodes; And
A plurality of second electrodes are disposed at those first electrodes top, and by this patterning support layer supports, wherein have identical clearance between those second electrodes and those first electrodes.
2. optical interference color display panel as claimed in claim 1 is characterized in that, this colored filter substrate comprises:
One substrate;
One black matrix; And
A plurality of colored filter film wherein should be deceived matrix configuration on this substrate, and should have a plurality of lattice points by black matrix, and those colored filter film are disposed on this substrate, and were positioned within those lattice points.
3. optical interference color display panel as claimed in claim 2 is characterized in that, those colored filter film comprise a plurality of red filter film, a plurality of green filter film, and a plurality of blue light filter film.
4. optical interference color display panel as claimed in claim 1 is characterized in that the material of those first electrodes comprises transparency electrode.
5. optical interference color display panel as claimed in claim 4 is characterized in that the material of those first electrodes comprises indium tin oxide.
6. optical interference color display panel as claimed in claim 1 is characterized in that the material of those second electrodes comprises metal electrode.
7. optical interference color display panel as claimed in claim 6 is characterized in that, the material of those second electrodes comprise molybdenum, molybdenum alloy, chromium, aluminium and aluminium alloy one of them.
8. optical interference color display panel as claimed in claim 1 is characterized in that, the material of this substrate be glass and high molecule plastic one of them.
9. optical interference color display panel as claimed in claim 1 is characterized in that, each those optical thin film comprises:
At least one first dielectric film; And
At least one second dielectric film, wherein this second dielectric film and the mutual storehouse of this first film, and the dielectric coefficient of this second dielectric film is different with the dielectric coefficient of this first dielectric film.
10. interference of light regulating element is characterized in that it comprises:
One substrate;
One colored filter film is disposed on this substrate;
One patterning supporting layer is disposed on this colored filter film;
One first electrode is disposed on this colored filter film;
One optical thin film is disposed on this first electrode; And
One second electrode is disposed at this first electrode top, and by this patterning support layer supports, wherein has a clearance between this second electrode and this first electrode.
11. interference of light regulating element as claimed in claim 10 is characterized in that, this colored filter film comprises a red filter film, a green filter film, and a blue light filter film one of them.
12. optical interference color display panel as claimed in claim 10 is characterized in that, the material of this first electrode comprises transparency electrode.
13. interference of light regulating element as claimed in claim 12 is characterized in that the material of this first electrode comprises indium tin oxide.
14. interference of light regulating element as claimed in claim 10 is characterized in that the material of this second electrode comprises metal electrode.
15. interference of light regulating element as claimed in claim 14 is characterized in that, the material of this second electrode comprise molybdenum, molybdenum alloy, chromium, aluminium and aluminium alloy one of them.
16. interference of light regulating element as claimed in claim 10 is characterized in that, the material of this substrate be glass and high molecule plastic one of them.
17. interference of light regulating element as claimed in claim 10 is characterized in that, this optical thin film comprises:
At least one first dielectric film; And
At least one second dielectric film, wherein this second dielectric film and the mutual storehouse of this first film, and the dielectric coefficient of this second dielectric film is different with the dielectric coefficient of this first dielectric film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100366 CN1242292C (en) | 2003-01-13 | 2003-01-13 | Light interference type colour display panel and light interference regulating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100366 CN1242292C (en) | 2003-01-13 | 2003-01-13 | Light interference type colour display panel and light interference regulating element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1517746A CN1517746A (en) | 2004-08-04 |
| CN1242292C true CN1242292C (en) | 2006-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03100366 Expired - Fee Related CN1242292C (en) | 2003-01-13 | 2003-01-13 | Light interference type colour display panel and light interference regulating element |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360982C (en) * | 2005-01-13 | 2008-01-09 | 友达光电股份有限公司 | Microelectromechanical optical display subass embly |
| KR20170136109A (en) * | 2016-05-31 | 2017-12-11 | 삼성디스플레이 주식회사 | Color conversion panel and display device including the same |
| CN106066553B (en) * | 2016-08-10 | 2019-01-22 | 京东方科技集团股份有限公司 | A kind of display panel, its driving method and display device |
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| CN1517746A (en) | 2004-08-04 |
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Owner name: QUALCOMM MEMS SCIENCE & TECHNOLOGY CO.,LTD. Free format text: FORMER OWNER: YUANTAI SCIENCE, TECHNOLOGY + INDUSTRY CO. LTD. Effective date: 20060421 |
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Effective date of registration: 20060421 Address after: American California Patentee after: Qualcomm MEMS Technology Corp. Address before: No. 3, No. 1, Li Gong Road, Hsinchu Science Industrial Park, Taiwan Patentee before: Yuantai Science and Technology Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060215 Termination date: 20160113 |
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