CN103135821A - Image display system - Google Patents
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- CN103135821A CN103135821A CN2011103980597A CN201110398059A CN103135821A CN 103135821 A CN103135821 A CN 103135821A CN 2011103980597 A CN2011103980597 A CN 2011103980597A CN 201110398059 A CN201110398059 A CN 201110398059A CN 103135821 A CN103135821 A CN 103135821A
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Abstract
The invention discloses an image display system. The image display system comprises a touch-control sensing device which comprises a base and a sensing electrode layer. The base is provided with a sensing zone, and the sensing zone comprises a center portion. The sensing electrode layer is located on the base of the sensing zone and comprises a plurality of sensing electrode patterns which are located on the center portion. Each sensing electrode pattern is provided with at least on nonlinear edge and adjacent sensing electrode pattern are embedded with each other.
Description
Technical field
The invention relates to a kind of contact panel display technology, particularly relevant for a kind of sensing electrode structure of the touch sensing device for the contact panel display.
Background technology
Touch sensing device (for example is integrated in a flat display apparatus usually, liquid crystal display (liquid crystal display, LCD), active matrix organic light emitting display (active matrix organic light-emitting display, AMOLED) etc.) in, to form the contact panel display.The contact panel display is used in electronic installation usually, for example laptop computer, personal digital assistant (personal digital assistants, PDA), e-book (electronic books), projector, and mobile phone etc., the function that it can be inputted by execution such as finger, pointer (stylus), stylus and gradually be subject to attracting attention and popularize.
Recently, in order to reduce the manufacturing cost of touch sensing device, thereby develop copline (co-planar) single-layer type touch sensing device, wherein sensor electrode array is formed at the one-sided of a substrate, and each sensing electrode is connected to a cabling (trace) individually.Please refer to Fig. 1, it shows an existing copline single-layer type touch sensing device floor map.This touch sensing device 20 comprises a transparent substrates 10 and is formed at sensor electrode array on transparent substrates 10.Sensor electrode array is by patterning one transparency conducting layer (not illustrating), and for example indium tin oxide (indium tin oxide, ITO) forms, and comprises a plurality of triangle sensing electrode patterns 12 of alternative arrangement.Moreover each triangle sensing electrode pattern 12 is connected to a cabling 14 individually.Yet in above-mentioned touch sensing device 20, the linearity (linearity) of sensing electrode is good and can only be used in single-point touch operation (single touch).
Please refer to Fig. 2, it shows another existing copline single-layer type touch sensing device floor map.This touch sensing device 40 comprises a transparent substrates 30 and is formed at sensor electrode array (being made of ITO) on transparent substrates 30.Sensor electrode array comprises staggered a plurality of rhombus sensing electrode pattern 32 and is arranged at these rhombus sensing electrode patterns 32 triangle sensing electrode pattern 34 on every side.Similarly, each rhombus and each triangle sensing electrode pattern 32 and 34 are connected to a cabling (not illustrating) individually, wherein each cabling (being consisted of by ITO) by between rhombus sensing electrode pattern 32 and the raceway groove g between rhombus sensing electrode pattern 32 and triangle sensing electrode pattern 34 extend to the sensor electrode array outside.Above-mentioned touch sensing device 40 can be used in multi-point touch operation (multi-touch) and can improve the linearity by the area that dwindles sensing electrode pattern 32 and 34.Yet dwindling the sensing electrode pattern need increase the cabling quantity that is arranged in raceway groove g, thereby increases the degree of difficulty of wiring.
Therefore, be necessary to seek a kind of new touch sensing device structure, it can improve or solve the above problems.
Summary of the invention
One embodiment of the invention provides a kind of image display system, comprises a touch sensing device, and it comprises: a substrate have a sensing area, and sensing area comprises a central part; And a sensing electrode layer, be positioned in the substrate of sensing area, comprising: a plurality of sensing electrode patterns, be positioned at central part, wherein each sensing electrode pattern has at least one non-straight edges, and makes adjacent sensing electrode pattern chimeric each other.
The image display system that the embodiment of the present invention provides, its work simplification and low cost of manufacture utilize this image display system can reduce the visuality (visibility) of sensing electrode pattern and cabling.
According to the embodiment of the present invention, because the sensing electrode pattern is staggered and has can be each other chimeric broken shape edge, therefore touch sensing device be except can be used in multi-point touch operation, at least two sensing electrodes simultaneously sensing from user's input signal.Thus, need not just can increase the linearity of touch sensing device by dwindling the sensing electrode pattern, prevent that simultaneously the difficult wiring degree from rising because of the quantity increase of sensing electrode pattern.
Moreover, under identical sheet resistance (sheet resistance), by the penetrability (transmittance) of the formed sensing electrode pattern of metal mesh opening layer higher than the penetrability by the formed sensing electrode pattern of ITO.Therefore, the optical characteristics of touch sensing device is better than existing copline single-layer type touch sensing device with ITO sensing electrode.
Description of drawings
Fig. 1 shows an existing copline single-layer type touch sensing device floor map;
Fig. 2 shows another existing copline single-layer type touch sensing device floor map;
Fig. 3 shows according to an embodiment of the invention copline single-layer type touch sensing device floor map in image display system;
Fig. 4 is the base plane schematic diagram that shows touch sensing device in Fig. 3;
Fig. 5 A shows single the first sensing electrode pattern floor map in Fig. 3;
Fig. 5 B shows single the second sensing electrode pattern floor map in Fig. 3;
Fig. 5 C shows single the 3rd sensing electrode pattern floor map in Fig. 3;
Fig. 6 A is the enlarged diagram that shows regional A in Fig. 3;
Fig. 6 B is the enlarged diagram that shows regional B in Fig. 3; And
Fig. 7 shows image display system block schematic diagram according to another embodiment of the present invention.
Drawing reference numeral:
10,30～transparent substrates;
12,34～triangle sensing electrode pattern;
14～cabling;
20,40～touch sensing device;
32～rhombus sensing electrode pattern; And
G～raceway groove;
100～substrate;
101～sensing area;
101a～central part;
101b～surrounding edge edge;
The top corner part of 101c～on every side;
102～the first sensing electrode patterns;
102e, 104e, 104f, 104g, 106e, 106f～broken shape edge;
104～the second sensing electrode patterns;
104a, 106a～extension;
106～the 3rd sensing electrode patterns;
107～cabling;
200～touch sensing device;
300～contact panel display;
400～input block;
500～electronic installation;
A, B～zone;
G～raceway groove.
Embodiment
The image display system of the embodiment of the present invention below is described.Yet, can understand easily embodiment provided by the present invention and only be used for explanation with the ad hoc approach making and use the present invention, be not to limit to scope of the present invention.
The image display system of each different embodiment of the present invention below is provided.Please refer to Fig. 3, it shows according to an embodiment of the invention copline single-layer type touch sensing device floor map in image display system.In the present embodiment, touch sensing device 200 comprises a substrate 100 and is arranged at sensing electrode layer in substrate 100.Substrate 100 can be made of transparent material, for example glass, quartz or other elasticity or non-resilient macromolecule transparent material, and in order to the use of touch sensing device one touch-control surface to be provided, and in order to the bearing basement as the sensing electrode layer.Please refer to Fig. 4, it shows substrate 100 floor map of touch sensing device 200 in Fig. 3.In the present embodiment, substrate 100 has a sensing area 101, and sensing area 101 comprises a central part 101a and a periphery, and wherein periphery is around central part 101a.In one embodiment, sensing area 101 is rectangle, and the periphery of sensing area 101 comprise a plurality of surrounding edges edge 101b and a plurality of around top corner part 101c, make surrounding edge edge 101b and around top corner part 101c around central part 101a.
Referring again to Fig. 3, the sensing electrode layer is positioned in the substrate 100 of sensing area 101.In one embodiment, the sensing electrode layer can be made of a pattern metal mesh (metal mesh) layer, and its material can include but not limited to: copper, aluminium, molybdenum or its alloy or its combination.The sensing electrode layer comprises the first sensing electrode pattern 102 of a plurality of electrical isolation, and it is positioned at the central part 101a (being shown in Fig. 4) of sensing area 101.In the present embodiment, specifically each first sensing electrode pattern 102 has at least one non-straight edges, and makes the first adjacent sensing electrode pattern 102 chimeric each other.In one embodiment, non-straight edges can be a broken shape edge (fractal-shaped edge), the edge that for example is made of Ke Ke curve (Koch curve) or bright Koffsky curve (Minkowski curve).Should be noted that herein the first sensing electrode pattern 102 adjacent in Fig. 3 uses different background patterns (drawing symbol) in order to reach the purpose of clear expression original idea.Moreover the non-straight edges of this paper only illustrates as example with the edge that the Ke Ke Curves consists of.
Please refer to Fig. 5 A, it shows according to single the first sensing electrode pattern floor map in Fig. 3.The first sensing electrode pattern 102 can have four broken shape edge 102e, and each broken shape edge 102e (as, the edge that is made of the Ke Ke Curves) is made of rectangle teat and the rectangular recess of alternative arrangement.Yet in other embodiments, the first sensing electrode pattern 102 can have and is less than or more than four broken shape edges, and teat and the recess at each broken shape edge can have other profiles, for example triangle, semicircle or other geometric configuratioies.Be understandable that and need the central part 101a appearance profile of the sensing area 101 of corresponding change substrate 100 when changing the appearance profile of the first sensing electrode pattern 102.
Referring again to Fig. 3, the sensing electrode layer more comprises the second sensing electrode pattern 104 of a plurality of electrical isolation and the 3rd sensing electrode pattern 106 of a plurality of electrical isolation, wherein the second sensing electrode pattern 104 is positioned at the surrounding edge edge 101b (being shown in Fig. 4) of sensing area 101, and the 3rd sensing electrode pattern 106 is positioned at the top corner part 101c (being shown in Fig. 4) on every side of sensing area 101.In the present embodiment, each second sensing electrode pattern 104 has at least one broken shape edge, makes the second adjacent sensing electrode pattern chimeric each other, and each second sensing electrode pattern 104 is also chimeric each other with the first adjacent sensing electrode pattern 102.Moreover each the 3rd sensing electrode pattern 106 has at least one broken shape edge, makes each the 3rd sensing electrode pattern 106 chimeric each other with the second adjacent sensing electrode pattern 104.
Please refer to Fig. 5 B and Fig. 5 C, wherein Fig. 5 B shows single the second sensing electrode pattern floor map in Fig. 3, and Fig. 5 C shows single the 3rd sensing electrode pattern floor map in Fig. 3.In the present embodiment, the second sensing electrode pattern 104 can have three broken shape edge 104e, 104f and 104g, and the 3rd sensing electrode pattern 106 can have two broken shape edge 106e and 106f. Broken shape edge 104e, 104f, 104g, 106e and 106f are made of alternative arrangement rectangle teat and rectangular recess similar in appearance to broken shape edge 102e (being shown in Fig. 5 A).Therefore, in certain embodiments, the appearance profile of each the second sensing electrode pattern 104 can be same as local form's profile of each the first sensing electrode pattern 102.For instance, the appearance profile of the second sensing electrode pattern 104 can be same as half appearance profile of the first sensing electrode pattern 102.Moreover the profile wheel of each the 3rd sensing electrode pattern 106 can be same as local form's profile of each the second sensing electrode pattern 104.For instance, the appearance profile of the 3rd sensing electrode pattern 106 can be same as half appearance profile of the second sensing electrode pattern 104.
In other embodiments, the second sensing electrode pattern 104 also can have and is less than or more than three broken shape edges, and the 3rd sensing electrode pattern 106 also can have and is less than or more than two broken shape edges.Moreover teat and the recess at each broken shape edge can have other profiles, for example triangle, semicircle or other geometric configuratioies.Similarly, be understandable that when changing the appearance profile of second and third sensing electrode pattern 104 and 106, need the surrounding edge edge 101b of the sensing area 101 of corresponding change substrate 100 to reach top corner part 101c appearance profile on every side.
Due to first, second and third sensing electrode pattern 102 in the sensing electrode layer, 104 and 106 chimeric each other, therefore when the user operated, the sensing electrode pattern of at least two can sense the input signal from the user.Thus, can help external control circuit (not illustrating) to distinguish input position, and then promote the linearity and the sensitivity of touch sensing device 200.
Yet, due to the sensing area of second and third sensing electrode pattern 104 and 106 area less than the first sensing electrode pattern 102, so the signal intensity of second and third sensing electrode pattern 104 and 106 sensings can be lower than the signal intensity of 102 sensings of the first sensing electrode pattern.
In order to promote the signal intensity of second and third sensing electrode pattern 104 and 106 sensings, the sensing electrode layer more comprises a plurality of extension 104a and 106a, as please be shown in Figure 3.Extension 104a is positioned at surrounding edge edge 101b and is connected to the second sensing electrode pattern 104 of a correspondence, and extension 106a is positioned at top corner part 101c on every side, and is connected to the 3rd sensing electrode pattern 106 of a correspondence.In one embodiment, the area of extension 104a and corresponding the second sensing electrode pattern 104 and be same as the area of the first electrode pattern 102.Moreover, extension 106a and the area of corresponding the 3rd sensing electrode pattern 106 and also be same as the area of the first electrode pattern 102.
Please refer to Fig. 6 A, it shows the enlarged diagram of regional A in Fig. 3.In one embodiment, comprise a raceway groove G who is positioned at the sensing electrode layer between the first adjacent sensing electrode pattern 102, it extends along broken shape edge 102e (being shown in Fig. 5 A), with the first adjacent sensing electrode pattern 102 of electrical isolation.That is raceway groove G is the Cutting Road in order to patterning sensing electrode layer (for example, metal mesh opening layer).In other embodiments, can comprise at least two parallel channel (namely between the first adjacent sensing electrode pattern 102, dual Cutting Road (not illustrating)), preventing that conductive particle (not illustrating) from dropping on the short circuit problem that is caused the sensing electrode pattern on single raceway groove during touch sensing device 200 is made, and then the yield of enhancement touch sensing device 200.
Similarly, be understandable that between the second adjacent sensing electrode pattern 104, can comprise between each first sensing electrode pattern 102 and corresponding the second sensing electrode pattern 104 and between each the 3rd sensing electrode pattern 106 and corresponding the second sensing electrode pattern 104 and be positioned at least two parallel channel, with electrical isolation first, second and third sensing electrode pattern 102,104 and 106.
Please refer to Fig. 6 B, it shows the enlarged diagram of regional B in Fig. 3.The sensing electrode layer more comprises many cablings, in order to be electrically connected the first corresponding electrode pattern 102 to external circuit (not illustrating).For simplifying accompanying drawing, only show single cabling 107 herein.In one embodiment, cabling 107 extends to one of them of the first electrode pattern 102 along one of them broken shape edge of the second electrode pattern 104, make the first electrode pattern 102 be electrically connected to external circuit (not illustrating).Yet in other embodiments, cabling 107 also can extend to along one of them broken shape edge of third electrode pattern 106 one of them of the first electrode pattern 102.
Shown in Fig. 6 B, the material of cabling 107 can be same as the sensing electrode layer.That is, can define simultaneously by patterning one metal mesh opening layer first, second and third sensing electrode pattern 102,104 and 106 and cabling 107.Thus, can simplify technique and reduce manufacturing cost, can reduce the visuality (visibility) of sensing electrode pattern and cabling simultaneously.
According to above-described embodiment, because the sensing electrode pattern is staggered and has can be each other chimeric broken shape edge, so touch sensing device be except can be used in multi-point touch operation, at least two sensing electrodes simultaneously sensing from user's input signal.Thus, need not just can increase the linearity of touch sensing device by dwindling the sensing electrode pattern, prevent that simultaneously the difficult wiring degree from rising because of the quantity increase of sensing electrode pattern.
Moreover, under identical sheet resistance (sheet resistance), by the penetrability (transmittance) of the formed sensing electrode pattern of metal mesh opening layer higher than the penetrability by the formed sensing electrode pattern of ITO.Therefore, the optical characteristics of touch sensing device 200 is better than existing copline single-layer type touch sensing device with ITO sensing electrode.
Fig. 7 shows image display system block schematic diagram according to another embodiment of the present invention, it may be implemented in contact panel display 300 or electronic installation 500, for example: panel computer (tablet personal computer), projector, e-book, notebook computer, mobile phone, digital camera, personal digital assistant (PDA), desktop computer, televisor, vehicle display or portable DVD player.Can be arranged at contact panel display 300 according to the touch sensing device 200 of the embodiment of the present invention.In other embodiments, touch sensing device 200 can be arranged at electronic installation 500.As shown in Figure 7, electronic installation 500 comprises: contact panel display 300 and input block 400.Input block 400 is coupled to contact panel display 300, in order to provide input signal (for example, signal of video signal) to contact panel display 300, makes contact panel display 300 show images.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can do to change and retouching, so protection scope of the present invention is when being as the criterion with claim institute confining spectrum.
Claims (13)
1. an image display system, is characterized in that, described image display system comprises:
One touch sensing device comprises:
One substrate has a sensing area, and described sensing area comprises a central part; And
One sensing electrode layer, be positioned in the described substrate of described sensing area, comprise: a plurality of the first sensing electrode patterns are positioned at described central part, wherein each first sensing electrode pattern has at least one non-straight edges, and makes the first adjacent sensing electrode pattern chimeric each other.
2. image display system as claimed in claim 1, is characterized in that, described non-straight edges is broken shape edge.
3. image display system as claimed in claim 2, is characterized in that, described broken shape edge comprises the edge that Ke Ke curve or bright Koffsky Curves consist of.
4. image display system as claimed in claim 2, is characterized in that, described sensing area is rectangle, and described sensing area more comprise a plurality of surrounding edges edge and a plurality of around top corner part around described central part, and described sensing electrode layer more comprises:
A plurality of the second sensing electrode patterns, be positioned at described a plurality of surrounding edges edges, wherein each second sensing electrode pattern has at least one broken shape edge, makes the second adjacent sensing electrode pattern chimeric each other, and each second sensing electrode pattern and adjacent the first electrode pattern chimeric each other; And
A plurality of the 3rd sensing electrode patterns, be positioned at described a plurality of around top corner part, wherein each the 3rd sensing electrode pattern has at least one broken shape edge, makes each the 3rd sensing electrode pattern and adjacent the second sensing electrode pattern chimeric each other.
5. image display system as claimed in claim 4, is characterized in that, described sensing electrode layer is made of a pattern metal mesh layer.
6. image display system as claimed in claim 5, it is characterized in that, comprise at least two parallel channel that are positioned at described sensing electrode layer between described a plurality of the first adjacent sensing electrode pattern, between described a plurality of the second adjacent sensing electrode patterns, between each first sensing electrode pattern and described the second corresponding sensing electrode pattern and between each the 3rd sensing electrode pattern and described the second corresponding sensing electrode pattern, with the described a plurality of first, second and third sensing electrode patterns of electrical isolation.
7. image display system as claimed in claim 5, it is characterized in that, described sensing electrode layer more comprises at least one cabling, extends to one of them of described a plurality of the first electrode patterns along one of them described broken shape edge of described a plurality of the second electrode patterns or described a plurality of third electrode patterns.
8. image display system as claimed in claim 4, it is characterized in that, described sensing electrode layer more comprises a plurality of extensions, be positioned at described a plurality of surrounding edges edge and described a plurality of top corner part on every side, and be connected to respectively the second sensing electrode pattern of a correspondence or the 3rd sensing electrode pattern of a correspondence, make the area of each extension and described corresponding the second or the 3rd sensing electrode pattern and be same as the area of each the first electrode pattern.
9. image display system as claimed in claim 4, is characterized in that, the appearance profile of each the second sensing electrode pattern is same as local form's profile of each the first sensing electrode pattern.
10. image display system as claimed in claim 9, is characterized in that, the appearance profile of each the 3rd sensing electrode pattern is same as local form's profile of each the second sensing electrode pattern.
11. image display system as claimed in claim 1 is characterized in that, described image display system more comprises:
One contact panel display comprises described touch sensing device; And
One input block is coupled to described contact panel display, in order to provide input signal to described contact panel display, makes described contact panel display show image.
12. image display system as claimed in claim 11 is characterized in that, described image display system comprises that one has the electronic installation of described contact panel display.
13. image display system as claimed in claim 12, it is characterized in that, described electronic installation comprises: a panel computer, a projector, an e-book, a notebook computer, a mobile phone, a digital camera, a personal digital assistant, a desktop computer, a televisor, a vehicle display or a portable DVD player.
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| CN2011103980597A CN103135821A (en) | 2011-12-05 | 2011-12-05 | Image display system |
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| CN2011103980597A CN103135821A (en) | 2011-12-05 | 2011-12-05 | Image display system |
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Cited By (6)
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| CN105320333A (en) * | 2014-07-29 | 2016-02-10 | 南京瀚宇彩欣科技有限责任公司 | Organic electroluminescence anti-interference touch panel |
| CN105320332A (en) * | 2014-07-29 | 2016-02-10 | 南京瀚宇彩欣科技有限责任公司 | FFS (fringe field switching) type liquid crystal touch display panel |
| US9846500B2 (en) | 2014-07-29 | 2017-12-19 | Hannstar Display (Nanjing) Corporation | Organic electroluminescent touch panel with anti-interference structures |
| US9865223B2 (en) | 2014-07-29 | 2018-01-09 | Hannstar Display (Nanjing) Corporation | Optoelectronic modulation stack |
| US9910547B2 (en) | 2014-07-29 | 2018-03-06 | Hannstar Display (Nanjing) Corporation | Anti-interference touch sensing structure |
| CN109766033A (en) * | 2015-06-23 | 2019-05-17 | 群创光电股份有限公司 | Touch-control display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20130605 |