CN101320107B - Touch control type display panel, colorful color filter and its production method - Google Patents
Touch control type display panel, colorful color filter and its production method Download PDFInfo
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- CN101320107B CN101320107B CN200810133008XA CN200810133008A CN101320107B CN 101320107 B CN101320107 B CN 101320107B CN 200810133008X A CN200810133008X A CN 200810133008XA CN 200810133008 A CN200810133008 A CN 200810133008A CN 101320107 B CN101320107 B CN 101320107B
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Abstract
The invention discloses a touch-sensitive type display panel, a colored filter and a making method thereof. The touch-sensitive type colored filter comprise a base plate, a black matrix, a colored filter layer and a second electrode layer; wherein, the black matrix is arranged on the base plate to define a plurality of secondary pixel regions; the black matrix comprises a first electrode layer, and the first electrode layer is provided with a plurality of openings which correspond to the secondary pixel regions; the colored filter layer comprises a plurality of colored filtering units, and the colored filtering units are respectively arranged in the secondary pixel regions; the second electrode layer is arranged on the base plate, and the second electrode layer comprises a plurality of sub-patterns; wherein, the sub-patterns respectively correspond to the secondary pixel regions. The invention also provides the making method of the touch-sensitive type filter and the display panel to which the touch-sensitive type colored filter is applied.
Description
Technical field
The invention relates to a kind of display panel, colored filter and preparation method thereof, and particularly relevant for a kind of touch control display panel, touch colored filter and preparation method thereof.
Background technology
In recent years, fast development and application along with infotech, wireless mobile communication and information household appliances, in order to reach more convenient, lighter and handyizatioier of volume and more humane purpose, many information products are by input medias such as traditional keyboard or mouses, change into and use contact panel (Touch Panel), wherein the most popular more now product of touch control display device as input media.
Existing contact panel is broadly divided into types such as condenser type, resistance-type and photosensitizing type, wherein is again the product of main flow with the capacitance type touch-control panel.In addition, classify as if forming according to structure, then contact panel can be divided into external labeling type (Added type) and internal connecting type (Integrated type) two big classes, wherein the internal connecting type contact panel can be integrated with the technology (as the technology of colored filter) of whole front panel, and help to dwindle the thickness of integral product, to meet the lightening trend of product.
Connect capacitance type touch-control panel in present and structurally can be further divided into glass substrate with the single layer designs of one side and the glass substrate double layer design of coplanar not.Though double layer design is easier on making, and the restriction of thickness and resolution is arranged, though and the structure of single layer designs is simple than double layer design, the problem that has complex process and resolution can't promote equally.
For instance, the touch colored filter of existing single layer designs generally includes substrate, lower electrode layer, first dielectric layer, chromatic filter layer, second dielectric layer and shared electrode layer.Lower electrode layer is disposed on the substrate, as black matrix, to define pixel region a plurality of times.Lower electrode layer generally includes a plurality of X electrodes and the Y electrode of array configurations, wherein interconnects between the X electrode, to form the serial of many X electrodes.First dielectric layer is disposed on the substrate, to cover X electrode and Y electrode.In addition, dispose a plurality of bridging lines on first dielectric layer, it is via the Y electrode of the serial connection of the through hole in first dielectric layer below, with many Y electrode serial of formation with X electrode array line interlacing.Chromatic filter layer comprises a plurality of colored light-filtering units, and it is disposed at respectively in time pixel region P1.Second dielectric layer covers chromatic filter layer and bridging line, and shared electrode layer is disposed on second dielectric layer.
Hold above-mentionedly, existing touch colored filter need form through hole in first dielectric layer by light shield technology when making, so technology is comparatively complicated, can't guarantee the technology yield.In addition, because the X electrode and the Y electrode of touch color screen are generally coplanar single layer designs (with respect to X electrode and the non-copline of Y electrode, be called bilayer), so the configuration of electrode and quantity is restricted easily, causes touch-control resolution can't have further and promotes.
In other words, the problem that the making of existing contact panel exists complex process and resolution to be restricted mostly, therefore how the technology at contact panel improves, and further promotes touch-control resolution, a real big problem of demanding urgently overcoming for the contact panel manufacturing technology.
Summary of the invention
The invention provides a kind of touch colored filter, it has preferable touch-control resolution and preferable touch-control sensitivity.
The present invention provides a kind of above-mentioned touch color filter making method in addition, and it has the processing step of comparatively simplification and preferable technology yield.
The present invention more provides a kind of touch control display panel, and it uses above-mentioned touch colored filter, and preferable touch-control resolution and touch-control sensitivity can be provided.
The present invention proposes a kind of touch colored filter, and this touch colored filter comprises substrate, black matrix, chromatic filter layer and the second electrode lay.Black matrix configuration on substrate to define pixel region a plurality of times.In addition, black matrix comprises first electrode layer, and first electrode layer has a plurality of openings corresponding to inferior pixel region.Chromatic filter layer comprises a plurality of colored light-filtering units, and wherein colored light-filtering units is disposed at respectively in time pixel region.The second electrode lay is disposed on the substrate, and the second electrode lay comprises a plurality of sub pattern, and wherein sub pattern corresponds respectively to time pixel region.
In one embodiment of this invention, the sub pattern of above-mentioned the second electrode lay lays respectively on the colored light-filtering units of chromatic filter layer.
In one embodiment of this invention, above-mentioned touch colored filter more comprises first dielectric layer.First dielectric layer covers chromatic filter layer and black matrix, and the second electrode lay is positioned on first dielectric layer.
In one embodiment of this invention, above-mentioned touch colored filter more comprises second dielectric layer.Second dielectric layer is disposed between black matrix and the substrate, and the second electrode lay is between second dielectric layer and substrate.
In one embodiment of this invention, above-mentioned touch colored filter more comprises the 3rd dielectric layer.The 3rd dielectric layer covers black matrix, chromatic filter layer and the second electrode lay.
In one embodiment of this invention, above-mentioned touch colored filter more comprises shared electrode layer.Shared electrode layer is disposed on the 3rd dielectric layer.
In one embodiment of this invention, the material of the first above-mentioned electrode layer is light tight metal.
In one embodiment of this invention, above-mentioned black matrix more comprises black resin layer.Black resin layer changes mutually with first electrode layer.
In one embodiment of this invention, the material of above-mentioned the second electrode lay is the electrically conducting transparent thing.
In one embodiment of this invention, above-mentioned black matrix more comprises anti-reflecting layer.Anti-reflecting layer is between first electrode layer and substrate.
In one embodiment of this invention, the first above-mentioned electrode layer is the X electrode.First electrode layer comprises independently a plurality of sensing blocks, wherein corresponding a plurality of the pixel regions of each sensing block.
In one embodiment of this invention, above-mentioned the second electrode lay is the Y electrode.The sub pattern of the second electrode lay is divided into a plurality of groups of corresponding sensing block, and the sub pattern of each group is connected in series mutually.
The present invention proposes a kind of touch color filter making method in addition.At first, provide a substrate.Then, to define pixel region a plurality of times, the mode that wherein forms black matrix is elder generation's formation first electrode layer to the black matrix of formation on substrate, and forms a plurality of openings corresponding to inferior pixel region in first electrode layer.Then, form a plurality of colored light-filtering units in inferior pixel region.Then, form the second electrode lay on substrate, wherein the second electrode lay comprises a plurality of sub pattern, and sub pattern corresponds respectively to time pixel region.
In one embodiment of this invention, above-mentioned touch color filter making method can be to form black matrix earlier on substrate.Then, after the formation colored light-filtering units, the sub pattern that forms the second electrode lay again is on colored light-filtering units.
In one embodiment of this invention, above-mentioned touch color filter making method also can be after forming black matrix and colored light-filtering units.Then, form first dielectric layer, make it cover colored light-filtering units and black matrix.Then, form the second electrode lay again on first dielectric layer.
In one embodiment of this invention, above-mentioned touch color filter making method more can be to form the second electrode lay earlier on substrate.After forming the second electrode lay, then, form second dielectric layer, make it cover the second electrode lay.Then, form black matrix and colored light-filtering units again.
In one embodiment of this invention, above-mentioned color filter making method more comprises formation the 3rd dielectric layer, makes it cover black matrix, colored light-filtering units and the second electrode lay.
In one embodiment of this invention, above-mentioned color filter making method comprises that more the formation shared electrode layer is on the 3rd dielectric layer.
In one embodiment of this invention, the method for the black matrix of above-mentioned formation more comprises formation one black resin layer, and it is changed mutually with first electrode layer.
In one embodiment of this invention, the method for the above-mentioned black matrix of formation comprises that more formation one anti-reflecting layer is between first electrode layer and substrate.
The present invention proposes a kind of touch control display panel in addition, and this touch control display panel comprises colored filter, array of display substrate and liquid crystal layer.Colored filter comprises black matrix, chromatic filter layer and the second electrode lay.Black matrix configuration on substrate to define pixel region a plurality of times.Black matrix comprises first electrode layer, and first electrode layer has a plurality of openings corresponding to inferior pixel region.Chromatic filter layer comprises a plurality of colored light-filtering units.Colored light-filtering units is disposed at respectively in time pixel region.The second electrode lay is disposed on the substrate.The second electrode lay comprises a plurality of sub pattern, and wherein sub pattern corresponds respectively to time pixel region.Liquid crystal layer is disposed between colored filter and the array of display substrate.
In sum, the present invention integrates the technology of existing colored filter, proposes the colored filter that a kind of processing step is comparatively simplified and the technology yield is higher.In addition, corresponding each time of the present invention pixel region forms single sensing electrode, can be X electrode or Y electrode, thereby can effectively promote sensing resolution.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of the local sense block of touch colored filter of the present invention;
Figure 1A and Figure 1B are respectively the X electrode of the sensing cell that Fig. 1 illustrates and the synoptic diagram of Y electrode;
Fig. 2 A is the schematic top plan view of the touch colored filter of first embodiment of the invention;
Fig. 2 B is the diagrammatic cross-section of the touch colored filter that illustrated along the BB ' hatching line of Fig. 2 A;
Fig. 3 A is the schematic top plan view of the touch colored filter of second embodiment of the invention;
Fig. 3 B is the diagrammatic cross-section of the touch colored filter that illustrated along the CC ' hatching line of Fig. 3 A;
Fig. 4 A is the schematic top plan view of the touch colored filter of third embodiment of the invention;
Fig. 4 B is the diagrammatic cross-section of the touch colored filter that illustrated along the DD ' hatching line of Fig. 4 A;
Fig. 5 is the schematic top plan view of the touch colored filter of fourth embodiment of the invention;
Fig. 6 is the diagrammatic cross-section of the touch control display panel of fifth embodiment of the invention.
[primary clustering symbol description]
100,530: the sensing block
The 110:X electrode
The 120:Y electrode
130: chromatic filter layer
200,300,400,500: the touch colored filter
210: substrate
220: black matrix
230: chromatic filter layer
232: colored light-filtering units
240: the second electrode lay
242: sub pattern
250: the first electrode layers
252: opening
260: anti-reflecting layer
270: the three dielectric layers
280: shared electrode layer
310: the first dielectric layers
410: the second dielectric layers
510a, 510b: sensor pad
520: lead
600: touch control display panel
610: colored filter
620: the array of display substrate
630: liquid crystal layer
P1: inferior pixel region
BB ', CC ', DD ': hatching line
Embodiment
Fig. 1 illustrates the synoptic diagram into the local sense block of touch colored filter of the present invention, and Figure 1A and Figure 1B are respectively the X electrode of the sensing cell that Fig. 1 illustrates and the synoptic diagram of Y electrode.Please also refer to Fig. 1, Figure 1A and Figure 1B, sensing block 100 comprises X electrode 110, Y electrode 120 and chromatic filter layer, wherein X electrode 110 for example is the transparency electrode of indium tin oxide, indium-zinc oxide, indium tin zinc oxide, hafnia, zinc paste, aluminium oxide, aluminium tin-oxide, aluminium zinc oxide, cadmium tin-oxide, cadmium zinc oxide and so on, and Y electrode 120 is for example for using chromium, molybdenum, aluminium, titanium, and oxide, black resin, or and the black matrix of combination.
In sensing block 100, chromatic filter layer 130 is disposed on the Y electrode 120, and X electrode 110 is disposed on the chromatic filter layer 130.Yet according to user's demand and design, X electrode 110 also can be replaced mutually with the rete of Y electrode 120 and be formed another kind of sensing block.In addition, X electrode 110 and the different rete configuration modes (for example being Y electrode-chromatic filter layer-dielectric layer-X electrode and so on) between the Y electrode 120 also can form the sensing block of various ways.Thus, the sensing block of different kenels also forms the touch colored filter of multiple kenel.Therefore, below especially exemplified by several embodiment so that it to be described.
First embodiment
Fig. 2 A is the schematic top plan view of the touch colored filter of first embodiment of the invention, and Fig. 2 B is the diagrammatic cross-section of the touch colored filter that illustrated along the BB ' hatching line of Fig. 2 A.In order to clearly demonstrate, Fig. 2 A mainly illustrates the structure of sensing electrode, and has omitted retes such as the 3rd dielectric layer on other upper strata and shared electrode layer.Fig. 2 B has then at large drawn the annexation between substrate and each rete.
The touch colored filter 200 of present embodiment comprises substrate 210, black matrix 220, chromatic filter layer 230 and the second electrode lay 240, and wherein each member annexation of touch colored filter 200 such as Fig. 2 A and Fig. 2 B illustrate.
Below describe the annexation between each member of touch colored filter 200 in detail.
In the present embodiment, the material of substrate 210 is to comprise inorganic transparent material (as: glass, quartz or other material), organic transparent material (as: polyalkenes, poly-Hai class, polyalcohols, polyesters, rubber, thermoplastic polymer, thermosetting polymer, poly aromatic hydro carbons, poly-methyl propionyl acid methyl esters class, polycarbonate-based or other or above-mentioned derivant or above-mentioned combination), inorganic transparent materials (as: silicon chip, pottery or other or above-mentioned combination) or above-mentioned combination.The substrate 210 of present embodiment is the usefulness that is used in the touch colored filter 200 as substrate, and serves as to implement example with the glass of inorganic transparent material, but not as limit.
In addition, black matrix 220 is disposed on the substrate 210 to define pixel region P1 a plurality of times.Black matrix 220 in the present embodiment comprises first electrode layer 250, and first electrode layer 250 has a plurality of openings 252 corresponding to inferior pixel region P1, and the material of first electrode layer 250 is light tight metal, for example is the material of chromium, molybdenum, aluminium, titanium and so on.Yet, have better display frame in order to make display panel with touch colored filter 200, therefore, black matrix 220 more comprises an anti-reflecting layer 260.Anti-reflecting layer 260 is between first electrode layer 250 and substrate 210, and when wherein first electrode layer 250 was the chromium material, the material of anti-reflecting layer 260 for example was the material of nitrogen chromium oxide (CrOxNy) or chromium oxide (CrOx) and so on, but is not limited thereto.In other example, when the material of first electrode layer 250 was above-mentioned other metal material, anti-reflecting layer 260 was generally black resin layer, but is not limited thereto.Black resin layer changes mutually with first electrode layer 250, and can be positioned on first electrode layer 250 or under.
In addition, the chromatic filter layer 230 of touch colored filter 200 comprises a plurality of colored light-filtering units 232, and wherein colored light-filtering units 232 is disposed at respectively in time pixel region P1.The color of colored light-filtering units 232 for example is the color that redness, green, blueness or combinations thereof form, and present embodiment serves as to implement example with redness, green and blueness, but is not limited thereto.
In the present embodiment, the second electrode lay 240 is disposed on the substrate 210, and the second electrode lay 240 comprises a plurality of sub pattern 242, and wherein, sub pattern 242 corresponds respectively to time pixel region P1.In more detail, the sub pattern 242 of the second electrode lay 240 lays respectively on the colored light-filtering units 232 of chromatic filter layer 230, illustrates as Fig. 2 B.In addition, the material of the second electrode lay 240 is the electrically conducting transparent thing, it for example is indium tin oxide, indium-zinc oxide, indium tin zinc oxide, hafnia, zinc paste, aluminium oxide, aluminium tin-oxide, aluminium zinc oxide, cadmium tin-oxide, cadmium zinc oxide or above-mentioned combination, but is not limited thereto.
In addition, be worth mentioning and be, in the present embodiment, a plurality of sub pattern 242 are concatenated into the X electrode of mentioning as above-mentioned 110, black matrix 220 then for example is aforesaid Y electrode 120, in other words, the second electrode lay 240 and first electrode layer 250 constitute a plurality of as above-mentioned sensing block 100, please illustrate with Fig. 2 A by comparison diagram 1.
In addition, touch colored filter 200 more comprises one the 3rd dielectric layer 270.The 3rd dielectric layer 270 chromatic filter layers 230 and the second electrode lay 240.The 3rd dielectric layer 270 for example is a protective seam or Shu flatness layer.The material of the 3rd dielectric layer 270 is organic material, inorganic or above-mentioned combination.Organic material for example is photoresistance, benzocyclobutene, cyclenes class, polyimide, polyamide-based, polyesters, polyalcohols, polyethylene oxide class, polyphenyl class, resene, polyethers, polyketone class or other material or above-mentioned combination.Inorganic for example is monox, silicon nitride, silicon oxynitride, other material that is fit to or above-mentioned combination, but is not limited thereto.
The touch colored filter 200 of present embodiment comprises that more one shares electrode layer 280.Shared electrode layer 280 is disposed on the 3rd dielectric layer 270, its material for example is indium tin oxide, indium-zinc oxide, indium tin zinc oxide, hafnia, zinc paste, aluminium oxide, aluminium tin-oxide, aluminium zinc oxide, cadmium tin-oxide, cadmium zinc oxide or above-mentioned combination, but is not limited thereto.
What deserves to be mentioned is that because first electrode layer 250 and the second electrode lay 240 be at different retes, and a plurality of sub pattern 242 of second electrode 240 distinguish a plurality of openings 252 of corresponding first electrode layer 250, and these openings 252 have respectively corresponding to inferior pixel region P1.Therefore, by suitable span wire system, technically, can be a sensing cell with a sub pattern 242.Touch-control resolution and touch-control sensitivity when in other words, this structural arrangements mode helps to improve touch colored filter 200 greatly and is applied to touch control display panel.
In addition, please also refer to Fig. 2 A and Fig. 2 B, the manufacture method of above-mentioned touch colored filter 200 is exemplified below.At first, provide substrate 210, wherein the material of substrate 210 does not repeat them here as aforementioned.
Then, the black matrix 220 of formation to define pixel region P1 a plurality of times, illustrates as Fig. 2 B on substrate 210.Specifically, the method that forms black matrix 220 comprises formation first electrode layer 250 earlier, and forms a plurality of openings 252 corresponding to inferior pixel region P1 in first electrode layer 250.On the real work of technology, can be on substrate 210, to form earlier first electrode material layer (not illustrating) all sidedly, wherein form first electrode material layer and can be to use sputtering method (sputtering), vapour deposition method (evaporation) or Metalorganic chemical vapor deposition method (metal organic chemical vapor deposition, MOCVD), or other technology that is fit to, above-mentioned only is one for example, non-in order to limit the present invention.Then, (Photolithography and Etching Process, PEP) patterning first electrode material layer has a plurality of openings 252 with formation and corresponding to first electrode layer 250 of inferior pixel region P1 to use traditional lithography technology.The mode of above-mentioned formation first electrode layer 250 only is one for example, and it also can use the mode of other technology that is fit to, and for example: mode that screen painting, ink-jet, laser divest, other is fit to or above-mentioned combination, the present invention is not as limit.
Yet, in other example, when the material of first electrode layer 250 is the metal material of molybdenum, aluminium, titanium and so on, the mode that forms black matrix 220 is except forming the first above-mentioned electrode layer 250, comprise more forming black resin layer (not illustrating) that wherein black resin layer is folded mutually with first electrode layer 250.Specifically, in this example, black resin layer can be formed on the substrate 210 earlier, then, form first electrode layer 250 again on black resin layer, first electrode layer 250 is changed mutually with black resin layer, or after forming first electrode layer 250 earlier, form black resin layer again on first electrode layer 250.It should be noted that the pattern that forms black resin layer needs identical with the pattern of aforesaid first electrode layer 250.In addition, the method for formation black resin layer for example is to utilize modes such as lithography process, typography, ink-jetting process or coating process black resin layer is formed at the below of first electrode layer 250.
What deserves to be mentioned is that sometimes in order to make the display panel with touch colored filter 200 have better display frame, therefore, black matrix 220 more can comprise an anti-reflecting layer 260.Specifically, in the present embodiment, when the material of first electrode layer 250 was chromium, the step that forms black matrix 220 more comprised formation anti-reflecting layer 260, and wherein anti-reflecting layer 260 is between first electrode layer 250 and substrate 210.In addition, the method for formation anti-reflecting layer 260 for example is to form antireflection material layer (not illustrating) earlier.Then, utilize lithography art pattern CAD antireflection material layer, illustrate as Fig. 2 B to form anti-reflecting layer 260 on substrate 210.Being worth mentioning is, the material of anti-reflecting layer 260 for example is the material of nitrogen chromium oxide or chromium oxide and so on.
In other example, for example be the material of first electrode layer 250 when being the metal material of molybdenum, aluminium, titanium and so on, anti-reflecting layer 260 can be above-mentioned black resin layer.
Then, form a plurality of colored light-filtering units 232 in inferior pixel region P1, the method that wherein forms colored light-filtering units 232 for example is to utilize modes such as lithography process, typography, ink-jetting process or coating process the colorized optical filtering material being formed in time pixel region P1, and then forms colored light-filtering units 232.
Then, form the second electrode lay 240 on substrate 210, wherein the second electrode lay 240 comprises a plurality of sub pattern 242.Sub pattern 242 corresponds respectively to time pixel region P1.Specifically, the method that forms the second electrode lay 240 with sub pattern 242 can form second electrode material layer (not illustrating) all sidedly prior to finishing on the substrate 210 after the above-mentioned steps.Then, the second electrode lay 240 that uses lithography mode patterning second electrode material layer to have sub pattern 242 with formation.Certainly, above-mentioned only is one for example, the second electrode lay 240 that formation has a sub pattern 242 also can use the mode of other technology that is fit to, and for example: mode that screen painting, ink-jet, laser divest, other is fit to or above-mentioned combination, the present invention is not as limit.
Then, form the 3rd dielectric layer 270 on the substrate 210 of finishing above-mentioned steps, wherein the 3rd dielectric layer 270 covers black matrix 220, colored light-filtering units 232 and the second electrode lay 240.Specifically, form the mode that the 3rd dielectric layer 270 method of 210 on substrate for example is to use chemical vapour deposition technique or other technology that is fit to, as: screen painting, coating, ink-jet, energy source processing etc.
Then, on the 3rd dielectric layer 270 of the substrate 210 of finishing above-mentioned steps, form shared electrode layer 280.Specifically, the method for formation shared electrode layer 280 for example is to use sputtering method (sputtering) or vapour deposition method (evaporation).Certainly, the method for above-mentioned formation shared electrode layer 280 only is one for example, and it can also use other mode and the technology thereof that are fit to, as: screen painting, coating, ink-jet, energy source processing etc.And the material of shared electrode layer 280 is carried as above-mentioned institute, does not repeat them here.So far, finished the making of touch colored filter 200.
In sum, the method for making of the touch colored filter 200 of present embodiment is in short, form black matrix 220 earlier on substrate 210, then, form colored light-filtering units 232 on black matrix 220, and after forming colored light-filtering units 232, the sub pattern 242 that forms the second electrode lay 240 again is on colored light-filtering units 232, and detailed method for making is in above-mentioned mentioned.
Particularly, the colored light-filtering units 232 of the touch colored filter 200 of present embodiment is disposed between first electrode layer 250 and the second electrode lay 240, make colored light-filtering units 232 as the insulation course between first electrode layer 250 and the second electrode lay 240, and then reduce processing step with the prior art made.In addition, owing to first electrode layer 250 designs at different retes with the second electrode lay 240, and corresponding respectively first electrode layer of a plurality of sub pattern 242 of the second electrode lay 240 250 haves are corresponding to the opening 252 of inferior pixel region P1.Therefore, technically, touch colored filter 200 can be designed to a sensing cell with a sub pattern 252, that is is a sensing cell with a time pixel, and then promotes the touch-control resolution and the touch-control sensitivity of touch colored filter 200.Certainly, in other embodiments, can also be to be the sensing cell that a group forms with a plurality of sub pattern 252, this partly designs according to user's demand, the invention is not restricted to this.
Second embodiment
Fig. 3 A is the schematic top plan view of the touch colored filter of second embodiment of the invention, and Fig. 3 B is the diagrammatic cross-section of the touch colored filter that illustrated along the CC ' hatching line of Fig. 3 A.In order to clearly demonstrate, Fig. 3 A mainly illustrates the structure of sensing electrode, and has omitted the retes such as first dielectric layer, the 3rd dielectric layer and shared electrode layer on other upper strata.Fig. 3 B has then at large drawn the annexation between substrate and each rete.
Please also refer to Fig. 2 A, 2B, 3A and Fig. 3 B, touch colored filter 300 and touch colored filter 200 structural similarities, something in common repeats no more.The two does not exist together and only is, touch colored filter 300 more comprises first dielectric layer 310, and wherein first dielectric layer 310 covers chromatic filter layer 230 and black matrix 220, and the second electrode lay 240 is positioned on first dielectric layer 310, illustrates as Fig. 3 B.
Specifically, be different from before the touch colored filter 200 of embodiment with chromatic filter layer 230 as the insulation course between first electrode layer 250 and the second electrode lay 240.The touch colored filter 300 of present embodiment with first dielectric layer 310 and chromatic filter layer 230 as the insulation course between first electrode layer 250 and the second electrode lay 240.Furthermore, because first dielectric layer 310 is covered on chromatic filter layer 230 and the black matrix 220, on the technology practice, first dielectric layer 310 can be protected chromatic filter layer 230 to be polluted or destroy.In addition, first dielectric layer 310 also can be protected because of fabrication error causes the second electrode lay 240 and be connected short circuit with first electrode layer 250.
In addition because touch colored filter 300 and touch colored filter 200 structural similarities, and the two main difference be in, touch colored filter 300 more comprises first dielectric layer 310.In other words, the method for making of touch colored filter 300 can be considered the method for making of touch colored filter 200 in light of actual conditions, repeats no more below the technology mode of identical rete.What must note and adjust be, forming black matrix 220 and colored light-filtering units 232 respectively behind substrate 210, then, forming first dielectric layer 310 makes first dielectric layer 310 cover colored light-filtering units 232 and black matrix 220 on the substrate 210 of finishing above-mentioned steps, wherein, the method that forms first dielectric layer 310 for example is to use the mode of chemical vapour deposition technique or other technology that is fit to, as: screen painting, coating, ink-jet, energy source processing etc.Then, form again as the same embodiment described in the second electrode lay 240 on first dielectric layer 310.Then, form the 3rd dielectric layer 270 on the second electrode lay 240 and first dielectric layer 310, and form shared electrode layer 280 again on the 3rd dielectric layer 270.So far, just finish the making of touch colored filter 300.
In the present embodiment, touch colored filter 300 is except that the advantage with touch colored filter 200.More, make chromatic filter layer 230 be protected avoiding and polluted or destroy because touch colored filter 300 disposes first dielectric layer 310.In addition, first dielectric layer 310 is also avoided causing short circuit because of fabrication error causes the second electrode lay 240 to be connected with first electrode layer 250 simultaneously.
The 3rd embodiment
Fig. 4 A is the schematic top plan view of the touch colored filter of third embodiment of the invention, and Fig. 4 B is the diagrammatic cross-section of the touch colored filter that illustrated along the DD ' hatching line of Fig. 4 A.In order to clearly demonstrate, Fig. 4 A mainly illustrates the structure of sensing electrode, and has omitted the retes such as second dielectric layer, the 3rd dielectric layer and shared electrode layer on other upper strata.Fig. 4 B has then at large drawn the annexation between substrate and each rete.
Please also refer to Fig. 4 A and Fig. 4 B, the touch colored filter 400 of present embodiment is to form with the rete order of adjusting touch colored filter 200, and therefore, identical components indicates same-sign.In addition, touch colored filter 400 more comprises one second dielectric layer 410.Second dielectric layer 410 is disposed between black matrix 220 and the substrate 210, and the second electrode lay 240 is between second dielectric layer 250 and substrate 210.
Below describe the relation of touch colored filter 400 each member in detail.
Touch colored filter 400 is disposed at the second electrode lay 240 on the substrate 210.Second dielectric layer 410 be disposed on the second electrode lay 240 so that the second electrode lay 240 between second dielectric layer 410 and substrate 210.In addition, black matrix 220 is disposed on second dielectric layer 410 to define pixel region P1 a plurality of times.Black matrix 220 comprises first electrode layer 250, and first electrode layer 250 has a plurality of openings 252 corresponding to inferior pixel region P1.Chromatic filter layer 230 comprises a plurality of colored light-filtering units 232, and wherein colored light-filtering units 232 is disposed at respectively in time pixel region P1.The 3rd dielectric layer 270 covers black matrix 220 and chromatic filter layer 230.Shared electrode layer 280 is disposed on the 3rd dielectric layer 270.
Material that it should be noted that above-mentioned substrate 210, black matrix 220, chromatic filter layer 230, first electrode layer 250, the second electrode lay 240, the 3rd dielectric layer 270 and shared electrode layer 280 does not repeat them here as described in first embodiment.And the material of second dielectric layer 410 is organic material, inorganic or above-mentioned combination.Organic material for example is photoresistance, benzocyclobutene, cyclenes class, polyimide, polyamide-based, polyesters, polyalcohols, polyethylene oxide class, polyphenyl class, resene, polyethers, polyketone class or other material or above-mentioned combination.And inorganic for example is monox, silicon nitride, silicon oxynitride, other material that is fit to or above-mentioned combination, but is not limited thereto.
In addition, be different from above-mentioned touch colored filter 200,300, or chromatic filter layer 230 and first dielectric layer 310 are as the insulation course between first electrode layer 250 and the second electrode lay 240 with chromatic filter layer 230.The touch colored filter 400 of present embodiment with second dielectric layer 410 as the insulation course between first electrode layer 250 and the second electrode lay 240.Furthermore, because directly with the insulation course of second dielectric layer, therefore, comparablely on the capacitance between two electrode layers 240,250 designs do not comprise chromatic filter layer 230 and more accurate as first electrode layer and the second electrode lay.That is to say that touch colored filter 400 has more the advantage of the more or less freely design of capacitance except the advantage with touch colored filter 200,300.
In addition, please also refer to Fig. 4 A and Fig. 4 B, the manufacture method of above-mentioned touch colored filter 400 is exemplified below.At first, provide substrate 210.Then, form the second electrode lay 240 on substrate 210.Then, form second dielectric layer 410, make second dielectric layer 410 cover the second electrode lay, wherein, the method that forms second dielectric layer 410 for example is to use the mode of chemical vapour deposition technique or other technology that is fit to, as: screen painting, coating, ink-jet, energy source processing etc.Then, successively form black matrix 220 and colored light-filtering units 232 again on substrate 210.Then, as the method for making of the same embodiment, form the 3rd dielectric layer 270 on black matrix 220 and colored light-filtering units 232, and form shared electrode layer 280 again on the 3rd dielectric layer 270.So far, just finish the making of touch colored filter 400.Wherein, above-mentioned part forms the mode of each rete, described in preceding embodiment, does not repeat them here.
The 4th embodiment
Fig. 5 is the local schematic top plan view of the touch colored filter of fourth embodiment of the invention.For convenience of description, Fig. 5 only show sensing block partly and with the sensor pad of its electric connection.Please refer to Fig. 5, the touch colored filter 500 of present embodiment can be above-mentioned mentioned touch colored filter 200,300,400 one of them.In addition, touch colored filter 500 more comprises a plurality of sensor pad 510a, 510b and a plurality of lead 520.Sensor pad 510a electrically connects by the lead 520 and first electrode layer 250, and sensor pad 510b electrically connects by lead 520 and the second electrode lay 240.
In the present embodiment, first electrode layer 250 is defined as the X electrode.First electrode layer 250 comprises independently a plurality of sensing blocks 530, each sensing block 530 corresponding a plurality of pixel region P1 wherein, and each sensing block 530 is electrically connected to sensor pad 510a by lead.In addition, the second electrode lay 240 is defined as the Y electrode.The sub pattern 242 of the second electrode lay 240 is divided into a plurality of groups of corresponding sensing block 530, and the sub pattern 242 of each group is connected in series mutually by lead 520, and the lead after the serial connection is electrically connected to sensor pad 510b, illustrates as Fig. 5.
In detail, when touch colored filter 500 is applied to display panel, user's touch sensing block 530, can feasible sub pattern 242 and the equivalent capacitance value between the sensing block 530 change corresponding to sensing block 530, and then by lead 520 voltage signal or the current signal that changes is passed to sensor pad 510b, 510a respectively, and see through internal circuit design, make display panel show the zone of user institute touch-control.
It should be noted that in the touch colored filter 500 that illustrates at Fig. 5 that the number of 530 pairing pixel region P1 of each sensing block is 6 one group, is one group and the number of each sensing block 530 pairing sub pattern 242 also is 6.In other words, the touch colored filter 500 of present embodiment is to be a sensing cell with six time pixel region P1.Yet in other embodiments, the number of 530 pairing pixel region P1 of each sensing block can be 1 one group.In other words, touch colored filter 500 can design by above-mentioned lead 520, and the design of first electrode layer 250 and the second electrode lay 240, is a sensing cell to reach with one pixel region P1.Above-mentioned only is one for example, and it is a sensing cell that the present invention does not limit with several pixel region P1.
The 5th embodiment
Fig. 6 is the diagrammatic cross-section of the touch control display panel of fifth embodiment of the invention.The touch control display panel 600 of present embodiment comprises colored filter 610, array of display substrate 620 and liquid crystal layer 630.Liquid crystal layer 630 is arranged between colored filter 610 and the array of display substrate 620.
Particularly, colored filter 610 comprise described in above-mentioned embodiment touch colored filter 200,300,400,500 one of them.Because colored filter 610 has higher touch-control resolution, better Operational Figure Of Merit and makes comparatively simple process steps, so touch control display panel 600 similarly has above-mentioned advantage.
In addition, array of display substrate 620 for example is an active assembly array substrate, then be formed with active layers (not illustrating) on the array of display substrate 620, this active layers has multi-strip scanning line (not illustrating), many data lines (not illustrating), a plurality of thin film transistor (TFT) (not illustrating) and a plurality of pixel electrode (not illustrating), wherein sweep trace and data line are interconnected, thin film transistor (TFT) electrically connects corresponding scanning line and data line, and pixel electrode and corresponding thin film transistor (TFT) electric connection.Certainly, the different display modes of display panel 600, array of display substrate 620 can also with change, it for example is the penetrating type display panel, the semi penetration type display panel, reflective display panel, colored filter display panel of (color filter on array) on active layers, vertical orientation type (vertical alignment, VA) display panel, horizontal switch type (in plane switch, IPS) display panel, multi-domain perpendicular alignment-type (multi-domain vertical alignment, MVA) display panel, twisted nematic (twist nematic, TN) display panel, super-twist nematic (super twist nematic, STN) display panel, pattern vertical orientation type (patterned-silt vertical alignment, PVA) display panel, super pattern vertical orientation type (super patterned-silt vertical alignment, S-PVA) display panel, the advanced person is type (advance super view with great visual angle, ASV) display panel, fringe field switch type (fringe field switching, FFS) display panel, continuous fireworks shape arrange type (continuouspinwheel alignment, CPA) display panel, rotational symmetry is arranged micella type (axially symmetricaligned micro-cell mode, ASM) display panel, optical compensation curved arrange type (opticalcompensation banded, OCB) display panel, super horizontal switch type (super in plane switching, S-IPS) display panel, advanced super horizontal switch type (advanced super in plane switching, AS-IPS) display panel, extreme edge electric field switch type (ultra-fringe field switching, UFFS) display panel, stabilizing polymer alignment-type display panel, double vision angle type (dual-view) display panel, three visual angle type (triple-view) display panels, 3 d display (three-dimensional) or other type display panel, or above-mentioned combination.
In addition, the liquid crystal molecule kind of liquid crystal layer 630 also can have difference along with above-mentioned display panel, and this field has and know that usually the knowledgeable should know the liquid crystal molecule material of liquid crystal layer 630, does not repeat them here.
In sum, touch colored filter of the present invention has following advantage at least.At first, colored light-filtering units is used as insulation course between first electrode layer and the second electrode lay, to reduce processing step and to increase the technology yield.Or, be covered in a dielectric layer on the chromatic filter layer and as the insulation course between first electrode layer and the second electrode lay, in order to avoid chromatic filter layer is contaminated and avoid first electrode layer and the second electrode lay to electrically connect.Or be, with former first electrode layer and the second electrode lay two rete position intermodulation, and on first electrode layer, dispose chromatic filter layer and dispose a dielectric layer in two electrode film interlayers, the capacitance of winning between electrode layer and the second electrode lay is designed easily.In addition, because first electrode layer of touch colored filter is the design of different retes with the second electrode lay, therefore, on limited touch-control area, it has good touch-control resolution, for example is that pixel of design can corresponding sensing cell.In addition, when touch colored filter of the present invention is applied to display panel, more can improve the Operational Figure Of Merit and the technology fiduciary level of display panel.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; 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 domain of the appended claim of the present invention.
Claims (21)
1. a touch colored filter is characterized in that, comprising:
One substrate;
One black matrix is disposed on this substrate, and to define pixel region a plurality of times, this black matrix comprises one first electrode layer, and this first electrode layer has a plurality of openings corresponding to those times pixel region;
One chromatic filter layer comprises a plurality of colored light-filtering units, is disposed at respectively in those times pixel region; And
One the second electrode lay is disposed on this substrate, and this second electrode lay comprises a plurality of sub pattern, corresponds respectively to those times pixel region;
Wherein, this chromatic filter layer is disposed between this first electrode layer and this second electrode lay.
2. touch colored filter as claimed in claim 1 is characterized in that, those sub pattern of this second electrode lay lay respectively on those colored light-filtering units of this chromatic filter layer.
3. touch colored filter as claimed in claim 2 is characterized in that, more comprises one first dielectric layer, cover this chromatic filter layer and should deceive matrix, and this second electrode lay is positioned on this first dielectric layer.
4. touch colored filter as claimed in claim 1 is characterized in that, more comprises one second dielectric layer, be disposed between this black matrix and this substrate, and this second electrode lay is between this second dielectric layer and this substrate.
5. touch colored filter as claimed in claim 1 is characterized in that, more comprises one the 3rd dielectric layer, and covering should black matrix, this chromatic filter layer and this second electrode lay.
6. touch colored filter as claimed in claim 5 comprises that more one shares the electrode layer layer, is disposed on the 3rd dielectric layer.
7. touch colored filter as claimed in claim 1 is characterized in that, the material of this first electrode layer is light tight metal.
8. touch colored filter as claimed in claim 1 is characterized in that, this black matrix more comprises a black resin layer, changes mutually with this first electrode layer.
9. touch colored filter as claimed in claim 1 is characterized in that, the material of this second electrode lay is the electrically conducting transparent thing.
10. touch colored filter as claimed in claim 1 is characterized in that, this black matrix more comprises an anti-reflecting layer, between this first electrode layer and this substrate.
11. touch colored filter as claimed in claim 1 is characterized in that, this first electrode layer is the X electrode, comprises independently a plurality of sensing blocks, wherein corresponding a plurality of the pixel regions of each sensing block.
12. as 11 described touch colored filters of claim the, it is characterized in that this second electrode lay is the Y electrode, those sub pattern of this second electrode lay are divided into a plurality of groups of corresponding those sensing blocks, and the sub pattern of each group is connected in series mutually.
13. a touch color filter making method is characterized in that, comprising:
One substrate is provided;
Formation one black matrix to define pixel region a plurality of times, wherein forms and should comprise formation one first electrode layer by black matrix, and form a plurality of openings corresponding to those times pixel region in this first electrode layer on this substrate;
Form a plurality of colored light-filtering units in those times pixel region;
Form a second electrode lay on this substrate, wherein this second electrode lay comprises a plurality of sub pattern, corresponds respectively to those times pixel region;
Wherein, this colored light-filtering units is disposed between this first electrode layer and this second electrode lay.
14. touch color filter making method as claimed in claim 13, it is characterized in that, form earlier and should deceive matrix on this substrate, and after forming those colored light-filtering units, those sub pattern that form this second electrode lay again are on those colored light-filtering units.
15. touch color filter making method as claimed in claim 14, it is characterized in that, after formation should be deceived matrix and those colored light-filtering units, more comprise and form one first dielectric layer, make it cover those colored light-filtering units and this black matrix, form this second electrode lay afterwards again on this first dielectric layer.
16. touch color filter making method as claimed in claim 13, it is characterized in that, form this second electrode lay earlier on this substrate, and after forming this second electrode lay, more comprise and form one second dielectric layer, make it cover this second electrode lay, afterwards, forming should black matrix and those colored light-filtering units again.
17. touch color filter making method as claimed in claim 13 is characterized in that, more comprises forming one the 3rd dielectric layer, it is covered should black matrix, those colored light-filtering units and this second electrode lay.
18. touch color filter making method as claimed in claim 17 is characterized in that, comprises that more forming one shares the electrode layer layer on the 3rd dielectric layer.
19. touch color filter making method as claimed in claim 13 is characterized in that, forms more to comprise formation one black resin layer by black matrix, makes it folded mutually with this first electrode layer.
20. touch color filter making method as claimed in claim 13 is characterized in that, forms to comprise more that formation one anti-reflecting layer was between this first electrode layer and this substrate by black matrix.
21. a touch control display panel comprises:
One colored filter comprises:
One substrate;
One black matrix is disposed on this substrate, and to define pixel region a plurality of times, this black matrix comprises one first electrode layer, and this first electrode layer has a plurality of openings corresponding to those times pixel region;
One chromatic filter layer comprises a plurality of colored light-filtering units, is disposed at respectively in those times pixel region; And
One the second electrode lay is disposed on this substrate, and this second electrode lay comprises a plurality of sub pattern, corresponds respectively to those times pixel region;
Wherein, this chromatic filter layer is disposed between this first electrode layer and this second electrode lay;
One array of display substrate; And
One liquid crystal layer is arranged between this colored filter and this array of display substrate.
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| TWI502435B (en) * | 2013-08-12 | 2015-10-01 | Himax Tech Ltd | Touch control display system and routing layout of a touch panel thereof |
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