CN104238171A - TN/STN-based In-cell touch screen - Google Patents
TN/STN-based In-cell touch screen Download PDFInfo
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- CN104238171A CN104238171A CN201410421678.7A CN201410421678A CN104238171A CN 104238171 A CN104238171 A CN 104238171A CN 201410421678 A CN201410421678 A CN 201410421678A CN 104238171 A CN104238171 A CN 104238171A
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Abstract
The invention discloses a TN/STN-based In-cell touch screen, which comprises a capacity touch module CTP (capacity touch panel) and liquid crystal modules; the capacity touch module CTP and the liquid crystal modules are integrally molded; the capacity touch module CTP comprises an upper polaroid, an upper glass substrate, a lower glass substrate and a lower polaroid which are stacked in sequence from top to bottom; ITO (indium tin oxide) coatings and CTP (cytidine triphosphate) touch line layers are respectively arranged at opposite inner sides of the upper glass substrate and the lower glass substrate; the ITO coatings and the CTP touch line layers are formed by ITO photoetching on the same layer; the liquid crystal modules are arranged between the upper glass substrate and the lower glass substrate, and moreover, the capacity touch module CTP and the liquid crystal modules share ITO electrodes on the same layer. According to the touch screen disclosed by the invention, the capacity touch module CTP and the liquid crystal modules share the ITO electrodes on the same layer; a TN (twisted nematic)/HTN (high twist netamic)/STN (super twist netamic) or VA display screen and capacity touch are integrated by adopting the primary photoetching technology; the CTP touch line layer is manufactured in the LCD (liquid crystal display) screen; a secondary laminating process is omitted, and the production efficiency and the yield are obviously improved in comparison with the prior art; the whole touch screen is light, thin and low in cost.
Description
Technical field
The present invention relates to LCDs technical field, specifically refer to a kind of In-cell touch-screen based on TN/STN.
Background technology
The advantages such as LCDs (Liquid Crystal Display, LCD) is light with it, thin become one of display device with the fastest developing speed gradually.Recently, LCD Technology has had development at full speed, and the quality from the size of screen to display all achieves great progress, and LCD has the features such as volume is little, low in energy consumption, radiationless, has now occupied the leading position in plane display field.
Touching liquid-crystal display screen is by one of important carrier of input, outlet terminal integration.In recent years, along with the appearance of a series of products such as small and exquisite, slim and graceful handheld device, market is to the rush of demand of touching liquid-crystal display screen.
The touching liquid-crystal display screen of prior art is the technique adopting (TN/STN display module) capacitance plate that SENSOR is traditional, operation is relatively complicated, as shown in Figure 1, laminating after laminating between COVER Lens (capacitive touch screen cover plate) and ITO Sensor (nano indium tin metal oxide sensor or functional sheet) again and between LCD display, just forms the display of a complete band touch function.Touching liquid-crystal display screen production technology traditional as can be seen here has 2 bonding processs, and production efficiency is low, and yield is low, and cost is high.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, provide a kind of production efficiency high, the In-cell touch-screen based on TN/STN that yield is high.
The object of the invention is to be achieved through the following technical solutions:
A kind of In-cell touch-screen based on TN/STN, comprise capacitance touch module CTP and Liquid Crystal Module, described capacitance touch module CTP and Liquid Crystal Module one-body molded, described capacitance touch module CTP comprises the upper polaroid be cascading from top to bottom, upper glass substrate, lower glass substrate and lower polaroid, it is characterized in that: described upper glass substrate and the phase of lower glass substrate are provided with ITO coating to the inside and CTP touches line layer, it is that same layer ITO photoetching forms that described ITO coating and CTP touch line layer, described Liquid Crystal Module is arranged between glass substrate and lower glass substrate, and capacitance touch module CTP and Liquid Crystal Module share with layer ITO electrode.
Concrete, described lower glass substrate is also provided with the ITO conductor wire end connecting FPC.
The present invention has the following advantages and beneficial effect compared to existing technology:
1, together with touch-screen of the present invention display layer is done with inductive layer, capacitance touch module CTP and Liquid Crystal Module are shared with layer ITO electrode, adopt photoetching process to realize TN/HTN/STN or VA display screen and capacitance touch integrated, CTP touches line layer and does inside LCD display, i.e. In-cell structure, decrease 2 bonding processs compared to existing technology, production efficiency and yield are significantly increased, whole touch-screen is frivolous, and cost is low.
2, the present invention is without cover plate (COVER Lens), and face mating plate is used anti-scratch polaroid instead and substituted common face mating plate, and outward appearance is the same with common LCD, is in fact integrated with the display screen of touch function.
Accompanying drawing explanation
Fig. 1 is the structural representation of the In-cell touch-screen that the present invention is based on TN/STN.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of In-cell touch-screen based on TN/STN, comprise capacitance touch module CTP and Liquid Crystal Module 1, described capacitance touch module CTP and Liquid Crystal Module 1 one-body molded, described capacitance touch module CTP comprises the upper polaroid 2 be cascading from top to bottom, upper glass substrate 3, lower glass substrate 4 and lower polaroid 5, described upper glass substrate 2 and the phase of lower glass substrate 3 are provided with ITO coating 6 to the inside and CTP touches line layer 7, described ITO coating 6 touches line layer 7 with CTP and forms for same layer ITO photoetching, described Liquid Crystal Module 1 is arranged between glass substrate 2 and lower glass substrate 3, and capacitance touch module CTP and Liquid Crystal Module share with layer ITO electrode.
Existing TN/HTN/STN or VA display screen is increased the function of upper capacitance touch by the present invention, utilize novel In-cell structure, produce once and touch the function with display, this screen structure is simple, just increase CTP cabling during designed lines with originally different, glass still uses one side ito glass, and technique makes the same with production LCD.Combined circuit drives, and realizes capacitance touching control display and integrally shields function.
Concrete, described lower glass substrate is also provided with the ITO conductor wire end 8 connecting FPC.
In addition, In-cell touch-screen of the present invention need not plug-in SENSOR, and directly with the capacitance key digital touch panel of the little design in the large end, general T N/STN glass substrate face, frivolous, cost is low.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (2)
1. the In-cell touch-screen based on TN/STN, comprise capacitance touch module CTP and Liquid Crystal Module, described capacitance touch module CTP and Liquid Crystal Module one-body molded, described capacitance touch module CTP comprises the upper polaroid be cascading from top to bottom, upper glass substrate, lower glass substrate and lower polaroid, it is characterized in that: described upper glass substrate and the phase of lower glass substrate are provided with ITO coating to the inside and CTP touches line layer, it is that same layer ITO photoetching forms that described ITO coating and CTP touch line layer, described Liquid Crystal Module is arranged between glass substrate and lower glass substrate, and capacitance touch module CTP and Liquid Crystal Module share with layer ITO electrode.
2. the In-cell touch-screen based on TN/STN according to claim 1, is characterized in that: described lower glass substrate is also provided with the ITO conductor wire end connecting FPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421678.7A CN104238171A (en) | 2014-08-25 | 2014-08-25 | TN/STN-based In-cell touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421678.7A CN104238171A (en) | 2014-08-25 | 2014-08-25 | TN/STN-based In-cell touch screen |
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| Publication Number | Publication Date |
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| CN104238171A true CN104238171A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410421678.7A Pending CN104238171A (en) | 2014-08-25 | 2014-08-25 | TN/STN-based In-cell touch screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045003A (en) * | 2015-09-18 | 2015-11-11 | 南京华日触控显示科技有限公司 | Passive type liquid crystal display screen with built-in touch control function and manufacturing method thereof |
| TWI596400B (en) * | 2014-12-26 | 2017-08-21 | 樂金顯示科技股份有限公司 | Liquid crystal display panel and liquid crystal display apparatus including the same |
Citations (4)
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| CN102109690A (en) * | 2009-12-25 | 2011-06-29 | 上海天马微电子有限公司 | Embedded touch-screen LCD (liquid crystal display) device and control method |
| CN103294306A (en) * | 2013-05-09 | 2013-09-11 | 晟光科技股份有限公司 | Simplified production method for capacitive touch screen |
| KR101315227B1 (en) * | 2012-05-30 | 2013-10-07 | 엘지디스플레이 주식회사 | Display device with integrated touch screen and method for driving the same |
| CN204166245U (en) * | 2014-08-25 | 2015-02-18 | 康惠（惠州）半导体有限公司 | A kind of In-cell touch-screen based on TN/STN |
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2014
- 2014-08-25 CN CN201410421678.7A patent/CN104238171A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109690A (en) * | 2009-12-25 | 2011-06-29 | 上海天马微电子有限公司 | Embedded touch-screen LCD (liquid crystal display) device and control method |
| KR101315227B1 (en) * | 2012-05-30 | 2013-10-07 | 엘지디스플레이 주식회사 | Display device with integrated touch screen and method for driving the same |
| CN103294306A (en) * | 2013-05-09 | 2013-09-11 | 晟光科技股份有限公司 | Simplified production method for capacitive touch screen |
| CN204166245U (en) * | 2014-08-25 | 2015-02-18 | 康惠（惠州）半导体有限公司 | A kind of In-cell touch-screen based on TN/STN |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI596400B (en) * | 2014-12-26 | 2017-08-21 | 樂金顯示科技股份有限公司 | Liquid crystal display panel and liquid crystal display apparatus including the same |
| US9891457B2 (en) | 2014-12-26 | 2018-02-13 | Lg Display Co., Ltd. | Liquid crystal display panel and liquid crystal display apparatus including the same |
| CN105045003A (en) * | 2015-09-18 | 2015-11-11 | 南京华日触控显示科技有限公司 | Passive type liquid crystal display screen with built-in touch control function and manufacturing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141224 |