CN102929465B - A kind of capacitance touching control display module and manufacture method thereof - Google Patents
A kind of capacitance touching control display module and manufacture method thereof Download PDFInfo
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- CN102929465B CN102929465B CN201210452170.4A CN201210452170A CN102929465B CN 102929465 B CN102929465 B CN 102929465B CN 201210452170 A CN201210452170 A CN 201210452170A CN 102929465 B CN102929465 B CN 102929465B
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Abstract
The present invention relates to a kind of capacitance touching control display module, and the manufacture method of this capacitance touching control display module.This capacitance touching control display module comprises display, capacitance touch screen and touches aobvious chip; Touching aobvious chip is arranged on the step of display; The step of display is also provided with external connection end, step end, first step line, second step line and the 3rd step line, external interface is connected with external connection end by first step line, display interface is connected with the pel array of display by second step line, and touch-controlling interface is connected with step end by the 3rd step line; Step end is connected with the touch screen end of capacitance touch screen by jumper.By arranging external connection end, step end, first step line, second step line and the 3rd step line in advance on display step, and be arranged on the step of display by touching aobvious chip, when mounted, as long as adopt jumper to be connected with touch screen end by step end, manufacturing process is more simple, and manufacturing cost is lower.
Description
Technical field
The present invention relates to display and capacitance touching control technical field, particularly relate to a kind of capacitance touching control display module.
Background technology
Capacitance touch screen have transparency high, touch do not need to exert pressure, can the plurality of advantages such as severe external environment be resisted, its can with flat-panel monitor, as liquid crystal display (LCD), organic light emitting diode display (OLED) are combined and formed capacitance touching control display module, be applied in the multiple consumption electronic product such as mobile phone, panel computer, notebook computer.
Along with the development of touch-control display technique, someone proposes touch sensible component integration to the embedded type touch control display in display, if Apple is the various embedded type touch control displays mentioned in the patented claim of 200780021415.5 at application number, the development of this kind of touch control display, the appearance of touch-control display driver integrated chip (hereinafter referred to as " touch aobvious chip ") will be caused---touch-control is driven and display driver two kinds of function i ntegration in a slice chip, not only reduce chip cost, but also corresponding processing step can be reduced, at present, more existing chip companies are promoting relevant technology, wherein comparatively typically there is TDDI (touchanddisplaydriverintegrated) chip that Synaptics company promotes.
In existing capacitance touching control display module, capacitance touch screen generally adopts special touch chip to drive, its touch-control driving chip be generally arranged on be connected to touch-screen flexible connection line (FPC) on; Display generally adopts special display driver chip to drive, its display driver chip also can be arranged on and be connected in the flexible wires of display, or more generally, as shown in Figure 1, display driver chip 01 is arranged on the step 03 of display 02 by COG (Chiponglass) technology that (liquid crystal display or OLED display are generally all provided with step, so just can the circuit of display interior be drawn out on step, finally connect out from step).Therefore, a touch-control display module needs employing two kinds of chips, and adopts independent technique to install respectively, and its chip, manufacturing cost are all higher.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of capacitance touching control display module, and the manufacturing process of this capacitance touching control display module is more simple, and manufacturing cost is lower; The technical matters that will solve further is to provide the manufacture method of this capacitance touching control display module.The technical scheme adopted is as follows:
One capacitance touching control display module, comprises display, capacitance touch screen and touches aobvious chip, touches aobvious chip and is provided with display interface, touch-controlling interface and external interface, it is characterized in that: described tactile aobvious chip is arranged on by the mode of COG on the step of described display; The step of display is also provided with external connection end, step end, first step line, second step line and the 3rd step line, described external interface is connected with external connection end by first step line, described display interface is connected with the pel array of display by second step line, and described touch-controlling interface is connected with step end by the 3rd step line; Step end is connected with the touch screen end of described capacitance touch screen by jumper.
Above-mentioned touch screen end refers to that capacitance touch screen is formed by each electrode outlet line, for being connected with drive IC contiguous block.
By arranging external connection end, step end, first step line, second step line and the 3rd step line in advance on display step, and adopt tactile aobvious chip to be arranged on by the mode of GOC on the step of described display, when mounted, as long as adopt jumper to be connected with the touch screen end of capacitance touch screen by the step end of display, manufacturing process is more simple, and manufacturing cost is lower.
As preferred version of the present invention, described jumper is flexible connection line, and one end of flexible connection line is connected with described step end, and the other end of flexible connection line is connected with described touch screen end.Further preferred flexible connecting line is combined as a whole with external connection (circuit be connected with outside by external connection end is external connection).
As the further preferred version of the present invention, described flexible connection line comprises the first flexible wires and the second flexible wires; First flexible wires is fixed on described step and the stiff end of the first flexible wires is connected with described step end, second flexible wires is fixed on described capacitance touch screen and the stiff end of the second flexible wires is connected with described touch screen end, and the free end of the first flexible wires, the second flexible wires welds together.Flexible connection line is divided into the first flexible wires and the second flexible wires, carry out connecting, welding after fixing respectively, the installation of flexible connection line is more prone to, prevents because getting loose of being connected with step end, touch screen end is caused in flexible connection line stage casing to the acting force at two ends or mutually involving of two ends.Preferably the first flexible wires and external connection are combined as a whole, and the first flexible wires and external connection are installed on the step of display simultaneously, save an operation.
As preferred version of the present invention, described capacitance touch screen is integral type capacitance touch screen, and its touch screen end exposes and just to the step end on display step, described jumper is the anisotropic conductive rubber of vertical conduction; Anisotropic conductive rubber is interposed between described capacitance touch screen and display, the upper side of anisotropic conductive rubber and described touch screen end in contact, the downside of anisotropic conductive rubber and described step end in contact.In order to keep the fixing of conductive rubber and good contact, display and touch-screen can be bonded together by certain glue-line.Be preferably the substratum transparent being arranged on visible area laminating touch-screen and display, it also has the effect that between minimizing touch-screen and display, air layer is reflective.
As preferred version of the present invention, described jumper comprises anisotropy conductiving glue and multiple metal clips; Each metal clips is interposed between described capacitance touch screen and display, one end of each metal clips attaches in one of them of described step end and touch screen end by anisotropy conductiving glue, the other end of each metal clips and described step end and touch screen end wherein another contacts.In order to keep the good contact of metal clips, display and touch-screen can be bonded together by certain glue-line.Be preferably the substratum transparent being arranged on visible area laminating touch-screen and display, it also has the effect that between minimizing touch-screen and display, air layer is reflective.Wherein another is also coated with the conductive material such as carbon slurry or silver slurry preferably at described step end and touch screen end, makes the contact resistance between metal clips and touch screen end lower, there is better reliability.
As preferred version of the present invention, described jumper is the vertical conductor solidified by conducting paste.In order to prevent the motion between display and touch-screen cause conducting paste loosen, display and touch-screen can be bonded together by certain glue-line, be preferably the substratum transparent being arranged on visible area laminating touch-screen and display, it also has the effect that between minimizing touch-screen and display, air layer is reflective.Jumper is solidified by conducting paste and is formed, and display step can be avoided to be connected with vertical spring between capacitance touch screen the distortion produced.The shape of the contiguous block of preferred formation step end and the contiguous block that forms touch screen end be circle, its can reduce coating after the probability that sticks together of adjacent conductive lotion.Also can retrain preferably by the shape of certain separate layer to the conducting paste after coating, prevent the conducting paste after being coated with from flowing occurring and causes adjacent conducting paste to be sticked together.
A manufacture method for capacitance touching control display module, comprises the manufacturing step of capacitance touch screen and display, characterized by further comprising following steps:
(1), external connection end, step end, first step line, second step line and the 3rd step line are set on the step of display;
(2), be arranged on the step of display by touching aobvious chip by the mode of COG, external connection end is connected with the external interface touching aobvious chip by first step line, second step line is connected touching the aobvious display interface of chip with the pel array of display, and the touch-controlling interface touching aobvious chip is connected with step end by the 3rd step line;
(3), jumper is adopted to be connected with the touch screen end of capacitance touch screen by step end.
As the preferred version of manufacture method of the present invention, in described step (3), jumper is made up of the first flexible wires and the second flexible wires two sections, when connecting, first flexible wires is fixed over the display and the stiff end of the first flexible wires is connected with step end, second flexible wires to be fixed on capacitance touch screen and the stiff end of the second flexible wires is connected with the touch screen end of capacitance touch screen, the free end of the first flexible wires and the second flexible wires is welded together.
As the preferred version of manufacture method of the present invention, in described step (3), jumper is the anisotropic conductive rubber of vertical conduction, when connecting, anisotropic conductive rubber is placed on step end, and by glue-line, display and capacitance touch screen are bonded together, anisotropic conductive rubber is interposed between the touch screen end of step end and capacitance touch screen.Preferably coat substratum transparent in the visible area of capacitance touch screen or display, by glue-line, display and capacitance touch screen are bonded together.
As the preferred version of manufacture method of the present invention, the manufacture method of capacitance touching control display module as claimed in claim 7, it is characterized in that: in described step (3), jumper comprises anisotropy conductiving glue and multiple metal clips, when connecting, first step end and touch screen end one of them on attach one deck anisotropy conductiving glue, again one end of metal clips is attached on anisotropy conductiving glue, then by thermal head pressed metal shell fragment, metal clips is connected with this step end or touch screen end by the conductive pellets in anisotropy conductiving glue, finally by glue-line, display and capacitance touch screen are bonded together, metal clips is interposed between the touch screen end of step end and capacitance touch screen.Preferably coat substratum transparent in the visible area of capacitance touch screen or display, by glue-line, display and capacitance touch screen are bonded together.Improvement project to this manufacture method: step end and touch screen end another on coat the conductive material such as carbon slurry, silver slurry, make after metal clips is in contact with it, its contact resistance is lower, better reliability.
As the preferred version of manufacture method of the present invention, in described step (3), jumper is the vertical conductor solidified by conducting paste, when connecting, first coated glue layer on display or capacitance touch screen, the first conducting paste of protrusion is coated with again on each contiguous block of step end, each contiguous block of touch screen end of capacitance touch screen is coated with the second conducting paste of protrusion, display and capacitance touch screen are bonded together by glue-line, each first conducting paste is made to contact one by one with the second conducting paste and be bonded together, by drying or the mode of heat curing, the first conducting paste of being bonded together and the second conducting paste is made to be cured as vertical conductor.Preferred glue-line is substratum transparent, and substratum transparent is coated on the visible area of display or capacitance touch screen.
As the further preferred version of manufacture method of the present invention, in described step (3), before coating first conducting paste, the second conducting paste, the relevant position of step end and touch screen end is coated with separate layer, and separate layer is in the relevant position hollow out of each contiguous block.Separate layer adopts the material mutually repelled with conducting paste to be made, such as, when conducting paste is when including alkane, oil, fat and most material containing grease, separate layer adopts oleophobic property compound to be made, when conducting paste is when comprising the more material of water, such as, when taking water as volatile ingredient, separate layer adopts hydrophobic compound to be made.Separate layer can adopt printing, prints and forms, when accuracy requirement is higher, also can adopt photochromics as the method such as ink-jet method, stencil on step end, touch screen end, is formed by coating developing method.After being applied with separate layer, the process of coating conductive paste body can unnecessary accurate control, even can be coated with continuous print conducting paste on step end and/or touch screen end, under the effect of separate layer, conducting paste can be assembled from the contiguous block position of trend separate layer hollow out, final the first or second conducting paste forming contiguous block.
The above-mentioned coating for glue-line also can adopt opaque glue-line, and is coated on the neighboring area of display or capacitance touch screen.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in prior art, display step being arranged display driver chip;
Fig. 2 is the logic diagram of the embodiment of the present invention one;
Fig. 3 is the schematic wiring diagram of the embodiment of the present invention one;
Fig. 4 is the structural representation of the embodiment of the present invention one;
Fig. 5 is the structural representation of the embodiment of the present invention two;
Fig. 6 is the structural representation of the embodiment of the present invention three;
Fig. 7 is the sectional view of Fig. 6 along A-A;
Fig. 8 ~ Figure 10 is the schematic diagram of the embodiment of the present invention three manufacture method;
Figure 11 ~ Figure 15 is the schematic diagram of the embodiment of the present invention four manufacture method, and wherein Figure 15 is the structural representation of the embodiment of the present invention four;
Figure 16 is the structural representation of a kind of improvement project of the embodiment of the present invention four;
Figure 17 ~ 21 are schematic diagram of the embodiment of the present invention five manufacture method, and wherein Figure 21 is the structural representation of the embodiment of the present invention five;
Figure 22 ~ 24 are schematic diagram of a kind of improvement of the embodiment of the present invention five manufacture method.
Embodiment
Be described further below in conjunction with accompanying drawing and the preferred embodiment of the present invention.
Embodiment one
As shown in Figure 2, Figure 3 and Figure 4, this capacitance touching control display module, comprises display 1, capacitance touch screen 2 and touches aobvious chip 3, touches aobvious chip 3 and is provided with display interface 4, touch-controlling interface 5 and external interface 6; Touching aobvious chip 3 is arranged on the step 7 of display 1 by the mode of COG; The step 7 of display 1 is also provided with external connection end 8, step end 9, first step line 10, second step line 11 and the 3rd step line 12, external interface 6 is connected with external connection end 8 by first step line 10, display interface 4 is connected with the pel array 13 of display 1 by second step line 11, and touch-controlling interface 5 is connected with step end 9 by the 3rd step line 12; Step end 9 is connected with the touch screen end 14 of capacitance touch screen 2 by jumper.
Jumper is flexible connection line 15, and one end of flexible connection line 15 is connected with step end 9, and the other end of flexible connection line 15 is connected with touch screen end 14, and further by flexible connection line 15 and external connection 16 and together with.
The manufacture method of this capacitance touching control display module, comprises the manufacturing step of capacitance touch screen 2 and display 1, as shown in Figure 3 and Figure 4, also comprises the steps:
(1), external connection end 8, step end 9, first step line 10, second step line 11 and the 3rd step line 12 are set on the step 7 of display 1;
(2), be arranged on the step 7 of display 1 by touching aobvious chip 3 by the mode of COG, external connection end 8 is connected with the external interface 6 touching aobvious chip 3 by first step line 10, second step line 11 is connected touching the aobvious display interface 4 of chip 3 with the pel array 13 of display 1, and the touch-controlling interface 5 touching aobvious chip 3 is connected with touch screen end 14 by the 3rd step line 12;
(3), flexible connection line 15 is adopted to be connected with the touch screen end 14 of capacitance touch screen 2 by step end 9.
Embodiment two
As shown in Figure 5, when other parts are all identical with embodiment one, its difference is: flexible connection line 15 comprises the first flexible wires 151 and the second flexible wires 152; First flexible wires 151 is fixed on step 7 and the stiff end of the first flexible wires 151 is connected with step end 9, second flexible wires 152 is fixed on capacitance touch screen 2 and the stiff end of the second flexible wires 152 is connected with touch screen end 14, and the free end of the first flexible wires 151, second flexible wires 152 welds together.
As shown in Figure 5, in manufacture method, when other step is all identical with embodiment one, its difference is: in step (3), first flexible wires 151 to be fixed on display 1 and the stiff end of the first flexible wires 151 is connected with step end 9, second flexible wires 152 to be fixed on capacitance touch screen 2 and the stiff end of the second flexible wires 152 is connected with the touch screen end 14 of capacitance touch screen 2, finally the free end of the first flexible wires 151 and the second flexible wires 152 being welded together.
Embodiment three
As shown in figs. 6 and 10, when other parts are all identical with embodiment one, its difference is: described capacitance touch screen is integral type capacitance touch screen, and its touch screen end exposes and just to the step end on display step, and jumper is the anisotropic conductive rubber 16 of vertical conduction; Anisotropic conductive rubber 16 is interposed between capacitance touch screen 2 and display 1, and the upper side of anisotropic conductive rubber 16 contacts with touch screen end 14, and the downside of anisotropic conductive rubber 16 contacts with step end 9; The visible area of display 1 and touch-screen 2 is bonded together by substratum transparent 17.
As shown in Fig. 8 ~ Figure 10, in manufacture method, when other step is all identical with embodiment one, its difference is: in step (3), jumper is the anisotropic conductive rubber 16 of vertical conduction, when connecting, anisotropic conductive rubber 16 is placed on step end 9, substratum transparent 17 is coated in the visible area of display 1 or capacitance touch screen 2, display 1 and capacitance touch screen 2 are bonded together by substratum transparent 17, anisotropic conductive rubber 16 is interposed between the touch screen end 14 of step end 9 and capacitance touch screen 2.
Embodiment four
As shown in figure 15, when other parts are all identical with embodiment three, its difference is: jumper comprises anisotropy conductiving glue 18 and multiple metal clips 19; Each metal clips 19 is interposed between capacitance touch screen 2 and display 1, and one end of each metal clips 19 attaches on step end 9 by anisotropy conductiving glue 18, and the other end of each metal clips 19 contacts with touch screen end 14; The visible area of display 1 and capacitance touch screen 2 is bonded together by substratum transparent 17.
As shown in Figure 11 ~ Figure 15, in manufacture method, when other step is all identical with embodiment one, its difference is: in step (3), jumper comprises anisotropy conductiving glue 18 and multiple metal clips 19, when connecting, first on step end 9, attach one deck anisotropy conductiving glue 18, again one end of metal clips 19 is attached on anisotropy conductiving glue 18, then by thermal head 20 pressed metal shell fragment 19, metal clips 19 is connected with step end 9 by the conductive pellets in anisotropy conductiving glue 18, finally coat substratum transparent 17 in the visible area of display 1 or capacitance touch screen 2, display 1 and capacitance touch screen 2 are bonded together by glue-line 17, metal clips 19 is interposed between the touch screen end 14 of step end 9 and capacitance touch screen 2.
As shown in figure 16, the improvement for this manufacture method: touch screen end coat carbon slurry 21(also can be silver slurry grade conductive material), make metal clips 19 and carbon starch 21 contact after, its contact resistance is lower, better reliability.
Embodiment five
As shown in figure 21, when other parts are all identical with embodiment one, its difference is: jumper is the vertical conductor solidified by conducting paste 22, and the viewing area of display 1 and touch-screen 2 is bonded together by substratum transparent 17.
As shown in Figure 17 ~ Figure 21, in manufacture method, when other step is all identical with embodiment one, its difference is: in step (3), jumper is the vertical conductor solidified by conducting paste 22, when connecting, substratum transparent 17 is coated in the visible area of display 1 or capacitance touch screen 2, each contiguous block of step end 9 is coated with the first conducting paste 221 of protrusion, each contiguous block of touch screen end 14 of capacitance touch screen 2 is coated with the second conducting paste 222 of protrusion, display 1 and capacitance touch screen 2 are bonded together by glue-line 17, each first conducting paste 221 is made to contact one by one with the second conducting paste 222 and be bonded together, by drying or the mode of heat curing, the first conducting paste 221 of being bonded together and the second conducting paste 222 is made to be cured as vertical conductor.
As shown in Figure 22,23,24, the further improvement of this manufacture method, before coating first conducting paste 221, second conducting paste 222, the relevant position of step end 9 and touch screen end 14 is coated with separate layer 23, then in the relevant position hollow out of each contiguous block.
In other embodiments, adopt opaque glue-line, and be coated on the neighboring area of display or capacitance touch screen, display and capacitance touch screen are bonded together by glue-line.
In addition; it should be noted that, the specific embodiment described in this instructions, its each several part title etc. can be different; all equivalences of doing according to structure, feature and the principle described in inventional idea of the present invention or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (3)
1. a capacitance touching control display module, comprise display, capacitance touch screen and tactile aobvious chip, touch aobvious chip and be provided with display interface, touch-controlling interface and external interface, touch aobvious chip to be arranged on by the mode of COG on the step of described display, the step of display is also provided with external connection end, step end, first step line, second step line and the 3rd step line, external interface is connected with external connection end by first step line, display interface is connected with the pel array of display by second step line, described touch-controlling interface is connected with step end by the 3rd step line, step end is connected with the touch screen end of described capacitance touch screen by jumper, it is characterized in that: jumper is flexible connection line, flexible connection line comprises the first flexible wires and the second flexible wires, first flexible wires is fixed on described step and the stiff end of the first flexible wires is connected with described step end, second flexible wires is fixed on described capacitance touch screen and the stiff end of the second flexible wires is connected with described touch screen end, and the free end of the first flexible wires, the second flexible wires welds together.
2. a manufacture method for capacitance touching control display module, comprises the manufacturing step of capacitance touch screen and display, characterized by further comprising following steps:
(1), external connection end, step end, first step line, second step line and the 3rd step line are set on the step of display;
(2), be arranged on the step of display by touching aobvious chip by the mode of COG, external connection end is connected with the external interface touching aobvious chip by first step line, second step line is connected touching the aobvious display interface of chip with the pel array of display, and the touch-controlling interface touching aobvious chip is connected with step end by the 3rd step line;
(3), jumper is adopted to be connected with the touch screen end of capacitance touch screen by step end, jumper is made up of the first flexible wires and the second flexible wires two sections, when connecting, first flexible wires is fixed over the display and the stiff end of primary line is connected with step end, second flexible wires to be fixed on capacitance touch screen and the stiff end of the second flexible wires is connected with the touch screen end of capacitance touch screen, the free end of the first flexible wires and the second flexible wires is welded together.
3. a manufacture method for capacitance touching control display module, comprises the manufacturing step of capacitance touch screen and display, characterized by further comprising following steps:
(1), external connection end, step end, first step line, second step line and the 3rd step line are set on the step of display;
(2), be arranged on the step of display by touching aobvious chip by the mode of COG, external connection end is connected with the external interface touching aobvious chip by first step line, second step line is connected touching the aobvious display interface of chip with the pel array of display, and the touch-controlling interface touching aobvious chip is connected with step end by the 3rd step line;
(3), jumper is adopted to be connected with the touch screen end of capacitance touch screen by step end, jumper is the vertical conductor solidified by conducting paste, when connecting, first coated glue layer on display or capacitance touch screen, then on the relevant position of step end and touch screen end, separate layer is coated with, then in the relevant position hollow out of each contiguous block, the first conducting paste of protrusion is coated with again on each contiguous block of step end, each contiguous block of touch screen end of capacitance touch screen is coated with the second conducting paste of protrusion, display and capacitance touch screen are bonded together by glue-line, each first conducting paste is made to contact one by one with the second conducting paste and be bonded together, by drying or the mode of heat curing, the first conducting paste of being bonded together and the second conducting paste is made to be cured as vertical conductor.
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| KR101696511B1 (en) * | 2014-05-19 | 2017-01-16 | 엘지디스플레이 주식회사 | Touch sensor integrated type liquid crystal display device |
| CN106528969B (en) * | 2016-10-31 | 2021-06-15 | 努比亚技术有限公司 | Metal elastic sheet simulation method and device |
| CN108089758B (en) | 2018-01-02 | 2020-05-15 | 京东方科技集团股份有限公司 | Touch control and display driver, driving method, host and touch control display device |
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| JP2005164924A (en) * | 2003-12-02 | 2005-06-23 | Seiko Epson Corp | Electro-optical device, electronic apparatus, and flexible wiring board |
| CN101261379A (en) * | 2008-02-01 | 2008-09-10 | 信利半导体有限公司 | Capacitance type touch screen and touch display devices containing the touch screen |
| CN101626017A (en) * | 2008-07-11 | 2010-01-13 | 三星移动显示器株式会社 | Organic light emitting display device |
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| CN201927012U (en) * | 2010-12-13 | 2011-08-10 | 汕头超声显示器有限公司 | One-chip capacitive touch screen |
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|---|---|---|---|---|
| JP2005164924A (en) * | 2003-12-02 | 2005-06-23 | Seiko Epson Corp | Electro-optical device, electronic apparatus, and flexible wiring board |
| CN101261379A (en) * | 2008-02-01 | 2008-09-10 | 信利半导体有限公司 | Capacitance type touch screen and touch display devices containing the touch screen |
| CN101626017A (en) * | 2008-07-11 | 2010-01-13 | 三星移动显示器株式会社 | Organic light emitting display device |
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