CN101706701A - Capacitive touch control display panel - Google Patents
Capacitive touch control display panel Download PDFInfo
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- CN101706701A CN101706701A CN200910309816A CN200910309816A CN101706701A CN 101706701 A CN101706701 A CN 101706701A CN 200910309816 A CN200910309816 A CN 200910309816A CN 200910309816 A CN200910309816 A CN 200910309816A CN 101706701 A CN101706701 A CN 101706701A
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- conduction sensor
- display panel
- printing opacity
- touch control
- control display
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Abstract
The invention relates to a capacitive touch control display panel comprising a first base plate, a second base plate, an opaque pattern, a plurality of light transmitting conductive sensing pads and a plurality of opaque conductive patterns, wherein the first base plate is opposite to the second base plate; the light transmitting conductive sensing pads are arranged on the second base plate; the opaque conductive patterns are arranged on the second base plate and are electrically connected and partially overlapped with the light transmitting conductive sensing pads, wherein the conductivity of the opaque conductive patterns is higher than that of the light transmitting conductive sensing pads, and the opaque conductive patterns correspond to the opaque pattern. The capacitive touch control display panel enhances the conductivity of the light transmitting conductive sensing pads without any influence on an opening ratio and has better use value.
Description
Technical field
The invention relates to a kind of capacitance type touch control display panel, refer to a kind of capacitance type touch control display panel especially with Low ESR sensor pad and high aperture characteristic.
Background technology
In the market of various consumption electronic products now, portable electronic products such as mobile phone (mobile phone), satellite navigation system (GPA) and digital audio-video player use contact panel (touch panel) to link up interface as people's machine data widely.Because it is compact that the design of consumption electronic products is at present stressed, in product design, wish can save traditional input medias such as the button that takes up space and mouse, and the employing touch control manner is imported, so touch panel has become one of spare part of key.
Yet, on the market for the demand of display panel when large-sized direction develops, contact panel is but excessive because of the impedance of the sensor pad that is made of the printing opacity conductive material, and make large touch panel have to be difficult for picking out and still remain the shortcoming of touch-control input signal further to be improved.
Summary of the invention
One of purpose of the present invention is to provide a kind of capacitance type touch control display panel, to solve the difficult problem that known techniques was faced.
For reaching above-mentioned purpose, the invention provides a kind of capacitance type touch control display panel, comprise one first substrate, one second substrate, a light tight pattern, a plurality of printing opacity conduction sensor pad and a plurality of light tight conductive pattern.First substrate and second substrate are for being oppositely arranged.Printing opacity conduction sensor pad is to be arranged on second substrate.Light tight conductive pattern is to be arranged on second substrate, and light tight conductive pattern and printing opacity conduction sensor pad electrically connect and the part overlapping, wherein the conductance of light tight conductive pattern is higher than the conductance of printing opacity conduction sensor pad, and light tight conductive pattern corresponds to light tight pattern.
For reaching above-mentioned purpose, the present invention provides a kind of capacitance type touch control display panel in addition, comprises a light tight pattern, a plurality of printing opacity conduction sensor pad and a plurality of light tight conductive pattern.Light tight conductive pattern and printing opacity conduction sensor pad electrically connect and the part overlapping, and wherein the conductance of light tight conductive pattern is higher than the conductance of printing opacity conduction sensor pad, and light tight conductive pattern corresponds to light tight pattern.
Capacitance type touch control display panel of the present invention comprises printing opacity conduction sensor pad and light tight conductive pattern, and wherein the conductance of light tight conductive pattern is higher than the conductance of printing opacity conduction sensor pad, therefore can promote the conductance of printing opacity conduction sensor pad.In addition, light tight conductive pattern is to be arranged at the light tight zone that light tight pattern produces, and therefore can not influence aperture opening ratio.
Description of drawings
Fig. 1 to Fig. 3 has illustrated the synoptic diagram of the capacitance type touch control display panel of a preferred embodiment of the present invention.
Fig. 4 has illustrated the synoptic diagram of the capacitance type touch control display panel of another preferred embodiment of the present invention.
Fig. 5 has illustrated the synoptic diagram of the capacitance type touch control display panel of the another preferred embodiment of the present invention.
[primary clustering symbol description]
10 capacitance type touch control display panels, 12 first substrates
14 second substrates, 16 liquid crystal layers
18 black light-shielding patterns, 20 colored filters
22 printing opacities conduction sensor pad, 221 first printing opacities conduction sensor pad
222 second printing opacities conduction sensor pad, 24 first overlayers
26 second overlayers, 28 light tight conductive patterns
30 capacitance type touch control display panels, 40 capacitance type touch control display panels
GL gate line DL data line
The common line of CL
Embodiment
In the middle of instructions and follow-up claim, used some vocabulary to censure specific assembly.The person with usual knowledge in their respective areas should understand, and same assembly may be called with different nouns by manufacturer.This instructions and follow-up claim are not used as distinguishing the mode of assembly with the difference of title, but the benchmark that is used as distinguishing with the difference of assembly on function.Be to be an open term mentioned " comprising " in the middle of instructions and the follow-up request item in the whole text, thus should be construed to " including but not limited to ", this hold chat earlier bright.
Please refer to Fig. 1 to Fig. 3.Fig. 1 to Fig. 3 has illustrated the synoptic diagram of the capacitance type touch control display panel of a preferred embodiment of the present invention, wherein Fig. 1 looked synoptic diagram in one end, Fig. 2 is the diagrammatic cross-section along the hatching line A-A ' of Fig. 1, and Fig. 3 is the diagrammatic cross-section along the hatching line B-B ' of Fig. 1, and in order to highlight characteristics of the present invention, the part modular construction is not illustrated among Fig. 1.As shown in Figure 1 to Figure 3, the capacitance type touch control display panel 10 of present embodiment comprises that mainly one first substrate 12, one second substrate 14 and first substrate 12 are oppositely arranged, and one liquid crystal layer 16 be arranged between first substrate 12 and second substrate 14, wherein first substrate 12 is to be multiple substrate (also can be described as thin film transistor base plate), and second substrate 14 is to be colored filter substrate.Be laid with a plurality of gate lines GL, a plurality of data lines DL on first substrate 12 and a plurality of common line CL are laid on first substrate 12, and the necessary assembly of thin film transistor (TFT), storage capacitors and pixel electrode display panels such as (figure do not show).In addition, then be provided with black light-shielding pattern (also being called black matrix") 18 on second substrate 14, colored filter 20, a plurality of printing opacity conduction sensor pads 22, and common electrode necessary assemblies such as (figure do not show), wherein the black light-shielding pattern 18, colored filter 20 is to be arranged at the side of second substrate 14 in the face of first substrate 12 with printing opacity conduction sensor pad 22, be coated with one first overlayer 24 on black light-shielding pattern 18 and the colored filter 20, printing opacity conduction sensor pad 22 is arranged on first overlayer 24, and is coated with one second overlayer 26 in addition on the printing opacity conduction sensor pad 22.Printing opacity conduction sensor pad 22 is the usefulness as the electrode of touch control capacitance, and it can form electric capacity with finger or other input media.Printing opacity conduction sensor pad 22 comprises a plurality of first printing opacity conduction sensor pads 221 and a plurality of second printing opacity conduction sensor pads 222, wherein first printing opacity conduction sensor pad 221 and second printing opacity conduction sensor pad 222 are by being constituted with one deck light transmission conductive layer, first printing opacity conduction sensor pad 221 is along first direction setting (for example Y direction), and second printing opacity conduction sensor pad 222 is along second direction setting (for example directions X), and is positioned at first printing opacity conduction sensor pad 221 of delegation or second printing opacity conduction sensor pad 222 that is positioned at same row is to utilize bridged electrodes (figure does not show) to electrically connect.Setting by first printing opacity conduction sensor pad 221 and second printing opacity conduction sensor pad 222, the touch-control input signal that is produced during the touch-control input can be passed to sensing circuit along first direction first printing opacity conduction sensor pad of arranging 221 and second printing opacity conduction sensor pad of arranging along second direction 222 respectively, judges the position of input point.
Capacitance type touch control display panel 10 itself possesses two kinds of functions of demonstration and touch-control input, and in order not influence the demonstration aperture opening ratio, therefore printing opacity conduction sensor pad 22 must use for example tin indium oxide making of printing opacity conductive material, yet make conductance not good owing to the impedance of printing opacity conductive material is higher, therefore when the size of display panel increases, whether too high impedance meeting makes sensing circuit to pick out easily has the touch-control input signal to enter. in view of this, the capacitance type touch control display panel 10 of present embodiment is provided with a plurality of light tight conductive patterns 28 on second substrate 14, wherein light tight conductive pattern 28 electrically connects with printing opacity conduction sensor pad 22, and light tight conductive pattern 28 overlaps with printing opacity conduction sensor pad 22 parts, that is the area of each light tight conductive pattern 28 is respectively less than corresponding each printing opacity conduction sensor pad 22, and light tight conductive pattern 28 is in the scope that printing opacity conduction sensor pad 22 is contained. in addition, by selecting impedance to be lower than the material of the conductive material of printing opacity conduction sensor pad 22 as light tight conductive pattern 28, can make the substantial impedance of printing opacity conduction sensor pad 22 descend, that is the conductance of light tight conductive pattern 28 is higher than the conductance of printing opacity conduction sensor pad 22, and then capacitance touching control is implemented on the large scale display panel.
In capacitance type touch control display panel 10, be arranged at gate line GL, the data line DL on first substrate 12, common line CL and thin film transistor (TFT), and necessity assemblies such as black light-shielding pattern 18 that are arranged on second substrate 14 all belong to light tight pattern, in other words, in watching in the capacitance type touch control display panel 10, above-mentioned zone is light tight zone.In the present invention hereat, in order to the position of the light tight conductive pattern 28 that promotes conductance corresponding to gate line GL, data line DL, common line CL and black light-shielding pattern 18 wherein at least one, that is light tight conductive pattern 28 is to be arranged in the light tight zones that light tight pattern produced such as gate line GL, data line DL, common line CL and black light-shielding pattern 18, and therefore the setting of light tight conductive pattern 28 can promote printing opacity and conducts electricity the conductance of sensor pad 22 under the prerequisite that does not influence aperture opening ratio.What deserves to be explained is that in addition light tight conductive pattern 28 does not exceed in the mode that Fig. 2 and Fig. 3 were illustrated with the relative position of printing opacity conduction sensor pad 22, for example light tight conductive pattern 28 also can be arranged between second substrate 14 and the printing opacity conduction sensor pad 22.
For ease of the different place of various embodiments of the present invention relatively, following embodiment and the identical identical assembly of symbology of previous embodiment use, and only describe, and no longer repeating part is given unnecessary details at the different place of each embodiment.Please refer to Fig. 4.Fig. 4 has illustrated the synoptic diagram of the capacitance type touch control display panel of another preferred embodiment of the present invention.Shown in the 4th figure, be with the previous embodiment difference, first printing opacity of the capacitance type touch control display panel 30 of present embodiment conduction sensor pad 221 is made of the different layers light transmission conductive layer with second printing opacity conduction sensor pad 222, therefore is positioned to conduct electricity sensor pad 222 with first printing opacity conduction sensor pad 221 of delegation or second printing opacity that is positioned at same row and need not utilize the bridged electrodes electric connection.Yet, be still in the light tight zones that light tight pattern produced such as being arranged at gate line GL, data line DL, common line CL and black light-shielding pattern 18, to avoid influencing aperture opening ratio in order to the position of the light tight conductive pattern that promotes conductance.
Please refer to Fig. 5.Fig. 5 has illustrated the synoptic diagram of the capacitance type touch control display panel of the another preferred embodiment of the present invention.As shown in Figure 5, be different from previous embodiment and use the printing opacity conduction sensor pad 22 of rhombus, the capacitance type touch control display panel 40 of present embodiment is to use the printing opacity conduction sensor pad 22 of rectangle, therefore printing opacity conduction sensor pad 22 is different with the relative position of gate line GL, common line CL and data line DL, but the position in order to the light tight conductive pattern that promotes conductance is still in the light tight zones that light tight pattern produced such as being arranged at gate line GL, data line DL, common line CL and black light-shielding pattern, to avoid influencing aperture opening ratio.
In sum, the present invention utilizes low-impedance light tight conductive pattern to promote the conductance of printing opacity conduction sensor pad, can increase the touch-control sensitivity of capacitance type touch control display panel, and, therefore can not influence aperture opening ratio because light tight conductive pattern is to be arranged at the light tight zones that light tight pattern produced such as gate line, data line, common line and black light-shielding pattern.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. capacitance type touch control display panel is characterized in that comprising:
One light tight pattern;
A plurality of printing opacity conduction sensor pads; And
A plurality of light tight conductive patterns, these light tight conductive patterns and these printing opacities conduction sensor pad electrically connect and the part overlapping, wherein the conductance of these light tight conductive patterns is higher than the conductance of these printing opacity conduction sensor pads, and these light tight conductive patterns are corresponding to this light tight pattern.
2. capacitance type touch control display panel according to claim 1 is characterized in that: other comprises one first substrate, and one second substrate and this first substrate are oppositely arranged.
3. capacitance type touch control display panel according to claim 2 is characterized in that: wherein this first substrate is to be a multiple substrate, and this second substrate is to be a colored filter substrate.
4. capacitance type touch control display panel according to claim 2 is characterized in that: wherein these printing opacity conduction sensor pads are to be arranged on this second substrate.
5. capacitance type touch control display panel according to claim 2 is characterized in that: wherein these light tight conductive patterns are to be arranged on this second substrate.
6. capacitance type touch control display panel according to claim 2 is characterized in that: wherein these printing opacity conduction sensor pads and these light tight conductive patterns are to be arranged at the side of this second real estate to this first substrate.
7. capacitance type touch control display panel according to claim 1 is characterized in that: wherein this light tight pattern comprises a gate line, a data line, a common line, a black light-shielding pattern.
8. capacitance type touch control display panel according to claim 1, it is characterized in that: wherein these printing opacity conduction sensor pads comprise a plurality of first printing opacity conduction sensor pads and a plurality of second printing opacity conduction sensor pad, these first printing opacity conduction sensor pads are along a first direction setting, and these second printing opacity conduction sensor pads are along a second direction setting.
9. capacitance type touch control display panel according to claim 8 is characterized in that: wherein to conduct electricity sensor pad be for one deck light transmission conductive layer for these first printing opacities conduction sensor pads and these second printing opacities.
10. capacitance type touch control display panel according to claim 8 is characterized in that: wherein these first printing opacity conduction sensor pads and these second printing opacities conduction sensor pad are to be the different layers light transmission conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910309816A CN101706701A (en) | 2009-11-16 | 2009-11-16 | Capacitive touch control display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910309816A CN101706701A (en) | 2009-11-16 | 2009-11-16 | Capacitive touch control display panel |
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| Publication Number | Publication Date |
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| CN101706701A true CN101706701A (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910309816A Pending CN101706701A (en) | 2009-11-16 | 2009-11-16 | Capacitive touch control display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345323A (en) * | 2013-07-05 | 2013-10-09 | 南昌欧菲光显示技术有限公司 | Touch display screen, optical filter assembly thereof and manufacturing method of optical filter assembly |
| WO2016178808A1 (en) * | 2015-05-04 | 2016-11-10 | Microsoft Technology Licensing, Llc | Optical effect coating |
-
2009
- 2009-11-16 CN CN200910309816A patent/CN101706701A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345323A (en) * | 2013-07-05 | 2013-10-09 | 南昌欧菲光显示技术有限公司 | Touch display screen, optical filter assembly thereof and manufacturing method of optical filter assembly |
| CN103345323B (en) * | 2013-07-05 | 2016-02-24 | 南昌欧菲光显示技术有限公司 | Touch display screen and optical filter box thereof and this optical filter box preparation method |
| WO2016178808A1 (en) * | 2015-05-04 | 2016-11-10 | Microsoft Technology Licensing, Llc | Optical effect coating |
| US9835769B2 (en) | 2015-05-04 | 2017-12-05 | Microsoft Technology Licensing Llc | Optical effect coating |
| CN107580685A (en) * | 2015-05-04 | 2018-01-12 | 微软技术许可有限责任公司 | Optical effect coating |
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Application publication date: 20100512 |