CN101493594A - Display device with touch screen function - Google Patents
Display device with touch screen function Download PDFInfo
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- CN101493594A CN101493594A CNA2009101054845A CN200910105484A CN101493594A CN 101493594 A CN101493594 A CN 101493594A CN A2009101054845 A CNA2009101054845 A CN A2009101054845A CN 200910105484 A CN200910105484 A CN 200910105484A CN 101493594 A CN101493594 A CN 101493594A
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Abstract
The invention is applicable to the display field and provides a display device with a touch screen function; the display device comprises a first substrate, a touch sensing unit, a display unit and a second substrate; the touch sensing unit and the display unit are arranged between the first substrate and the second substrate; the touch sensing unit is arranged on the first substrate; the display unit is arranged on the touch sensing unit; the electrode wires of the touch sensing unit and the display unit are led out by the first substrate; the first substrate is connected with a flexible printing circuit board; the touch sensing unit is formed on the internal surface of the substrate of the display unit, and the electrode wire in the touch sensing unit is led out by the substrate of the display unit, thus realizing that an FPC is built in the touch sensing unit and also used by the display unit; therefore, the substrate being depended by the original touch sensing unit is saved, the thickness of the whole display device is reduced and the cost is also reduced; and the whole display device is provided with an upper substrate and a lower substrate and an optical subbing and an air layer are not arranged between the substrates.
Description
Technical field
The invention belongs to field of display, relate in particular to a kind of display device with touch screen function.
Background technology
Touch screen technology is as one of main means of the information of display interface input, widespread use on each class of electronic devices at present, as mobile terminals, personal digital assistant (Personal Digital Assistant, PDA) etc.The display device of existing band touch function adopts traditional mode bonding or the applying touch-screen that adds more; as shown in Figure 1; display unit 11 is bonding by optics glue-line 12 and touch sensing unit 13; touch unit 13 and protective seam 15 are same bonding by optics glue-line 14; there are a plurality of optics glue-lines or air layer in the middle of the whole display device, many defectives such as cause product thickness increase, poor reliability, transmittance is low, contrast descends, display effect is not good.Simultaneously because display unit 11 and touch sensing unit 13 are used independent flexible printed circuit board (Flexible Printed Circuit separately, FPC), and the factors such as line design of the two-sided tin indium oxide of glass substrate all cause the process engineering complexity, the cost increase.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of display device with touch screen function, has air layer or optics glue-line in the middle of being intended to solve the existing display device that has a touch function, and complex process, problem that cost is high.
The embodiment of the invention is to realize like this, a kind of display device with touch screen function, comprise first substrate, touch sensing unit, display unit and second substrate, described touch sensing unit, described display unit are between described first substrate and described second substrate, described touch sensing unit is formed on described first substrate, and described display unit is formed on the described touch sensing unit; The electrode cabling of described touch sensing unit and described display unit is all drawn by described first substrate, and described first substrate is connected with flexible printed circuit board.
In the embodiment of the invention, substrate inside surface at display unit forms touch sensing unit, electrode cabling in the touch sensing unit is drawn by the substrate of display unit, and then realize touch sensing unit built-in and with the shared FPC of display unit, saved the substrate that original touch sensing unit depended on simultaneously, make the thickness of whole display device reduce to some extent, cost also decreases, and whole display device has only up and down two substrates, do not have optics glue-line and air layer between the substrate.
Description of drawings
Fig. 1 is the structural representation of the liquid crystal indicator that provides of prior art;
Fig. 2 is the structural representation of the display device that is built-in with touch sensing unit that provides of the embodiment of the invention;
Fig. 3 a and Fig. 3 b are that conventional touch sensing unit touch sensing unit external and that the embodiment of the invention provides is built-in, the thickness contrast synoptic diagram of display device;
Fig. 4 is the structural representation of the display device when display device is liquid crystal indicator among Fig. 2;
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the embodiment of the invention, substrate inside surface at display unit forms touch sensing unit, electrode cabling in the touch sensing unit is drawn by the substrate of display unit, and then realize touch sensing unit built-in and with the shared FPC of display unit, saved the substrate that original touch sensing unit depended on simultaneously, the thickness of whole display device reduces to some extent.
Fig. 2 shows the structure of the display device that is built-in with touch sensing unit that the embodiment of the invention provides, and for convenience of description, only shows the part relevant with present embodiment.
With reference to Fig. 2, this display device comprises: first substrate 21, touch sensing unit 22, display unit 23 and second substrate 24, wherein touch sensing unit 22, display unit 23 are between first substrate 21 and second substrate 24, touch sensing unit 22 is formed on first substrate 21, display unit 23 is formed on the touch sensing unit 22, the electrode cabling of touch sensing unit 22 and display unit 23 is all drawn by first substrate 21, and first substrate 21 is connected with FPC 25.
Further, touch sensing unit 22 comprises the first induction electrode layer, first separation layer, the second induction electrode layer, second separation layer and the induction sheath that is formed at successively on first substrate 21, the electrode pattern of the first induction electrode layer and the second induction electrode layer can be one group of regular polygon or rhombus electrode, this rhombus electrode is a material transparent, that have excellent conductive performance, as tin indium oxide.
When the user touches the upper surface of (or closely non-touch) first substrate 21, corresponding subelement induction produces one or more changes in capacitance signals on the touch sensing unit 22, the controller of touch sensing unit 22 passes to system master system device by variation and the amplification that FPC 25 detects these signals, system master system device is also located to touch location according to this input, carry out the processing of corresponding actions simultaneously, finally by display unit 23 display operation situations.
In the present embodiment because touch sensing unit 22 is built-in, electrode cabling in the touch sensing unit 22 is drawn by the substrate of display unit, touch sensing unit 22 and display unit 23 can shared FPC25, saved the substrate that original touch sensing unit depended on simultaneously, make the thickness of whole display device reduce to some extent, cost also decreases.Fig. 3 a and Fig. 3 b show the built-in thickness contrast of conventional touch sensing unit touch sensing unit external and that present embodiment provides, as can be seen because touch sensing unit and the shared substrate of display unit, the built-in display device of touch sensing unit is thinner than external.
Further, display unit 23 can be liquid crystal display, Organic Light Emitting Diode display unit, electric swimming display unit etc.
Fig. 4 shows the structure of the display device when display device is liquid crystal indicator among Fig. 2, for convenience of description, only shows the part relevant with present embodiment.
With reference to Fig. 4, this display device comprises first substrate 402 and second substrate 411, first polaroid 401 and second polaroid 412 are affixed on the outside of first substrate 402 and second substrate 411 respectively, first substrate 402 is connected with FPC 413, first substrate 402 is formed with the first induction electrode layer 403 successively, first separation layer 404, the second induction electrode layer 405, second separation layer 406, induction sheath 407, the 3rd induction electrode layer 408, be formed with the 4th induction electrode layer 410 on second substrate 411, be sealed with liquid crystal layer 409 between the 3rd induction electrode layer 408 and the 4th induction electrode layer 410, wherein, the first induction electrode layer 403, first separation layer 404, the second induction electrode layer 405, second separation layer 406 and induction sheath 407 constitute the touch sensing unit of display device, and the 3rd induction electrode layer 408, liquid crystal layer 409 and the 4th induction electrode layer 410 constitute the display unit of display device.
In the embodiment of the invention, substrate inside surface at display unit forms touch sensing unit, electrode cabling in the touch sensing unit is drawn by the substrate of display unit, and then realize touch sensing unit built-in and with the shared FPC of display unit, saved the substrate that original touch sensing unit depended on simultaneously, make the thickness of whole display device reduce to some extent, cost also decreases, and whole display device has only up and down two substrates, do not have optics glue-line and air layer between the substrate.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of display device with touch screen function, comprise first substrate, touch sensing unit, display unit and second substrate, it is characterized in that, described touch sensing unit, described display unit are between described first substrate and described second substrate, described touch sensing unit is formed on described first substrate, and described display unit is formed on the described touch sensing unit; The electrode cabling of described touch sensing unit and described display unit is all drawn by described first substrate, and described first substrate is connected with flexible printed circuit board.
2, display device as claimed in claim 1 is characterized in that, described touch sensing unit comprises the first induction electrode layer, first separation layer, the second induction electrode layer, second separation layer and the induction sheath that is formed at successively on described first substrate.
3, display device as claimed in claim 2 is characterized in that, described first induction electrode layer and the described second induction electrode layer are made of one group of regular polygon or rhombus electrode pattern.
4, display device as claimed in claim 3 is characterized in that, but described regular polygon or rhombus electrode electrode for constituting by transparent conductive material.
5, display device as claimed in claim 4 is characterized in that, described regular polygon or rhombus electrode are indium-tin oxide electrode.
6, as each described display device of claim 1 to 5, it is characterized in that, described display unit is a liquid crystal display, described liquid crystal display comprises the 3rd induction electrode layer that is formed on the described touch sensing unit, be formed at the 4th induction electrode layer on described second substrate, and be sealed in the liquid crystal layer between described the 3rd induction electrode layer and described the 4th induction electrode layer.
7, display device as claimed in claim 6 is characterized in that, first polaroid is posted in described first substrate outside, and second polaroid is posted in described second substrate outside.
As each described display device of claim 1 to 4, it is characterized in that 8, described display unit is the Organic Light Emitting Diode display unit.
As each described display device of claim 1 to 4, it is characterized in that 9, described display unit is electric swimming display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101054845A CN101493594A (en) | 2009-02-20 | 2009-02-20 | Display device with touch screen function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101054845A CN101493594A (en) | 2009-02-20 | 2009-02-20 | Display device with touch screen function |
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| CN101493594A true CN101493594A (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009101054845A Pending CN101493594A (en) | 2009-02-20 | 2009-02-20 | Display device with touch screen function |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566174A (en) * | 2010-11-25 | 2012-07-11 | 乐金显示有限公司 | Liquid crystal display device |
| CN102859477A (en) * | 2010-04-16 | 2013-01-02 | 微晶片科技德国第二公司 | TFT display, OLED-interface, and method for detecting the spatial position of rims in a spatial region disposed upstream of a display |
| CN103529616A (en) * | 2012-07-05 | 2014-01-22 | 广州奥翼电子科技有限公司 | Electronic paper display module and device with touch function |
| CN103885235A (en) * | 2012-12-19 | 2014-06-25 | 林志忠 | Polarizing structure with touch control function |
| CN105304680A (en) * | 2010-06-25 | 2016-02-03 | 乐金显示有限公司 | Organic light emitting diode display device with built-in touch panel |
| CN109375817A (en) * | 2018-12-03 | 2019-02-22 | 武汉华星光电半导体显示技术有限公司 | Touch control display apparatus |
| CN109614012A (en) * | 2019-01-25 | 2019-04-12 | 武汉华星光电半导体显示技术有限公司 | Polarisation touch-control component and preparation method, flexible display apparatus |
| CN111399706A (en) * | 2019-01-03 | 2020-07-10 | 东友精细化工有限公司 | Touch sensor module, window stack structure and image display device |
| CN112735335A (en) * | 2020-11-30 | 2021-04-30 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display panel, display device and driving method |
-
2009
- 2009-02-20 CN CNA2009101054845A patent/CN101493594A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859477A (en) * | 2010-04-16 | 2013-01-02 | 微晶片科技德国第二公司 | TFT display, OLED-interface, and method for detecting the spatial position of rims in a spatial region disposed upstream of a display |
| CN102859477B (en) * | 2010-04-16 | 2016-11-16 | 微晶片科技德国公司 | TFT display, OLED interface and the method being used for detecting the locus at edge in the area of space being placed in display upstream |
| US9766733B2 (en) | 2010-04-16 | 2017-09-19 | Microchip Technology Germany Gmbh | TFT display, OLED interface and method for detecting the spatial position of extremities in a spatial region located in front of the display |
| CN105304680B (en) * | 2010-06-25 | 2019-03-15 | 乐金显示有限公司 | Organic light emitting diode display with built-in touch panel |
| CN105304680A (en) * | 2010-06-25 | 2016-02-03 | 乐金显示有限公司 | Organic light emitting diode display device with built-in touch panel |
| CN102566174A (en) * | 2010-11-25 | 2012-07-11 | 乐金显示有限公司 | Liquid crystal display device |
| US8792061B2 (en) | 2010-11-25 | 2014-07-29 | Lg Display Co., Ltd. | Liquid crystal display device |
| CN102566174B (en) * | 2010-11-25 | 2014-12-17 | 乐金显示有限公司 | Liquid crystal display device |
| CN103529616A (en) * | 2012-07-05 | 2014-01-22 | 广州奥翼电子科技有限公司 | Electronic paper display module and device with touch function |
| CN103885235A (en) * | 2012-12-19 | 2014-06-25 | 林志忠 | Polarizing structure with touch control function |
| CN109375817A (en) * | 2018-12-03 | 2019-02-22 | 武汉华星光电半导体显示技术有限公司 | Touch control display apparatus |
| CN111399706A (en) * | 2019-01-03 | 2020-07-10 | 东友精细化工有限公司 | Touch sensor module, window stack structure and image display device |
| CN111399706B (en) * | 2019-01-03 | 2023-06-09 | 东友精细化工有限公司 | Touch sensor module, window stacking structure and image display device |
| CN109614012A (en) * | 2019-01-25 | 2019-04-12 | 武汉华星光电半导体显示技术有限公司 | Polarisation touch-control component and preparation method, flexible display apparatus |
| CN112735335A (en) * | 2020-11-30 | 2021-04-30 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display panel, display device and driving method |
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Open date: 20090729 |