CN203720393U - Polaroid and touch control display - Google Patents

Polaroid and touch control display Download PDF

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Publication number
CN203720393U
CN203720393U CN201320825144.1U CN201320825144U CN203720393U CN 203720393 U CN203720393 U CN 203720393U CN 201320825144 U CN201320825144 U CN 201320825144U CN 203720393 U CN203720393 U CN 203720393U
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China
Prior art keywords
polaroid
display
tac film
function layer
touch
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Expired - Lifetime
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CN201320825144.1U
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Chinese (zh)
Inventor
陈学进
李建华
李志成
廖亿彬
连东海
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Truly Opto Electronics Ltd
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Truly Opto Electronics Ltd
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Priority to CN201320825144.1U priority Critical patent/CN203720393U/en
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Abstract

The utility model provides a Polaroid and a touch control display. The Polaroid is used between a touch control functional layer and a display module group, and bonded to the surface, which is orientated to the display module group, of the touch control functional layer. Adhesive which is orientated to the display module group in the prior art is shifted to be orientated to the touch control functional layer in the Polaroid, and pressure-sensitive adhesive is changed into optically clear adhesive which is higher in both light transmittance and bonding intensity, so that the Polaroid in the utility model can be used in the touch control display in which the Polaroid is separated from a display body. In addition, due to the fact that the Polaroid is separated from the display body, incident light of the Polaroid and the surface of the display body is reflected for multiple times in a space between the Polaroid and the display body, light which is directly reflected from the Polaroid to the eyes of a user of the touch control display is reduced under the condition that the display visual-angle effect of the display module group can be ensured, and thus, the display effect of the touch control display in a strong light environment is improved.

Description

A kind of polaroid and touch control display
Technical field
The utility model relates to display device technology field, relates in particular a kind of polaroid and touch control display.
Background technology
Existing touch control display as shown in Figure 1, comprise cover plate 01, touch function layer 02 and demonstration module 03, bonding by adhesive 04 between described cover plate 01 and described touch function layer 02, described cover plate 01 also includes ink layer (not shown) towards the surface of described touch function layer 02, bonding by adhesive 05 between described touch function layer 02 and described demonstration module 03, described demonstration module is liquid crystal display (Liquid Crystal Display, LCD) or organic light emitting diode display (Organic Electroluminescence Display, OLED).
Principle based on liquid crystal display or organic light emitting diode display demonstration image; its bright dipping side one side of described touch function layer and cover plate (towards) includes polaroid 06; the basic structure of described polaroid 06 as shown in Figure 2; comprise: middle PVA (polyvinyl alcohol (PVA)) 061; two-layer TAC (Triafol T) 062 and 063; PSA (pressure sensitive adhesive) 064, and two-layer diaphragm 065 and 066.Wherein, what play polarization is PVA layer; but PVA is very easily hydrolyzed; in order to protect the physical characteristics of polarizing layer PVA; therefore in the both sides of PVA, each compound one deck has high light transmission rate, water-tolerant and has again the TAC film of certain physical strength to protect; in order to make the visual angle display effect of display better, described polaroid middle distance shows nearer one deck TAC film, on described TAC film 063, also includes wide-angle film.
Polaroid of the prior art can only be bonded in liquid crystal display or organic light emitting diode display towards the surface of described touch function layer and cover plate, when the structure of touch control display changes, when polaroid is not bonded in display surface, existing polaroid will be no longer applicable.
Utility model content
In view of this, the utility model provides a kind of polaroid and touch control display, to solve when touch-control shows the structure of module, changes, and when polaroid is not bonded in display surface, existing polaroid is by no longer applicable problem.
For achieving the above object, the utility model provides following technical scheme:
A polaroid, between touch function layer and demonstration module, and is bonded in described touch function layer towards the surface of described demonstration module, and described polaroid comprises:
The TAC film being oppositely arranged and the 2nd TAC film;
PVA film between a described TAC film and the 2nd TAC film;
Be positioned at the surperficial optical cement that a described TAC film deviates from described PVA film;
Wherein, described the 2nd TAC film is the TAC film with wide-angle film.
Preferably, described optical cement is ultraviolet hardening optical cement.
Preferably, described optical cement is without acid type optical cement.
A touch control display, comprises touch function layer and shows module, the first polaroid between described touch function layer and described demonstration module, has gap between described the first polaroid and described demonstration module;
Wherein, described the first polaroid extremely comprises in the direction of described demonstration module successively along described touch control functional layer:
Be close to described touch function layer towards the optical cement on described demonstration module surface;
Be positioned at the TAC film that described optical cement deviates from described touch function layer surface;
Be positioned at the PVA film that a described TAC film deviates from described optical cement surface;
Be positioned at the 2nd TAC film that described PVA film deviates from a described TAC film surface;
Wherein, described the 2nd TAC film is the TAC film with wide-angle film.
Preferably, described optical cement is without acid type ultraviolet hardening optical cement.
Preferably, described touch function layer is also provided with ink layer towards the surface of described demonstration module.
Preferably, the thickness of described optical cement is 50 μ m-125 μ m, comprises endpoint value.
Preferably, described demonstration module is liquid crystal display.
Preferably, the surface that described liquid crystal display deviates from described touch function layer is also provided with the second polaroid, and the polarization direction of described the second polaroid is vertical with the polarization direction of described the first polaroid.
Known via above-mentioned technical scheme, the polaroid that the utility model provides and touch control display, wherein said polaroid is between touch function layer and demonstration module, and be bonded in described touch function layer towards the surface of described demonstration module, because the polaroid providing in the utility model will be transferred to towards touch function layer towards the adhesive that shows module in prior art, and pressure sensitive adhesive of the prior art is replaced with and has high light transmitance and compared with the optical cement of strong rubber knotting strength, thereby polaroid of the present utility model can be used in the touch control display of polaroid and displays separated.
The utility model also provides the touch control display of a kind of polaroid that comprises above-mentioned polaroid and displays separated, because described polaroid structure changes, described adhesive is transferred near on the TAC film of touch function layer, polaroid is bonded on touch function layer and is achieved.In addition, due to polaroid and displays separated, incide the light of polaroid and display surface, through the space multiple reflections between polaroid and display, can be in the situation that guarantee to show the display view angle effect of module, minimizing directly reflexes to the reflection ray touch control display user eyes from polaroid, thereby has improved the display effect that touch control display is used in high light environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the cross-sectional view of touch control display in prior art;
Fig. 2 is the structural representation of the polaroid between touch function layer and display in prior art;
A kind of touch function layer that Fig. 3 provides for the utility model and the structural representation of the polaroid between display;
The cross-sectional view of a kind of touch control display that Fig. 4 provides for the utility model;
The cross-sectional view of the another kind of touch control display that Fig. 5 provides for the utility model.
Embodiment
Just as described in the background section, polaroid of the prior art can only be bonded in liquid crystal display or organic light emitting diode display towards the surface of described touch function layer and cover plate, be that its adhesive is close to described LCD or OLED, and cannot use at polaroid, be not bonded in the touch-control demonstration module of display surface.
Inventor finds, the reason that occurs above-mentioned phenomenon is, development along with touch-control demonstration module, increasing touch-control shows that modular structure occurs, because polaroid has directivity, arbitrarily reverse side is used, adhesive in polaroid in prior art between touch function layer and display is towards the surface of described display, therefore existing polaroid between touch function layer and display can only be bonded in the surface of display, and cannot be bonded in the surface of touch function layer, structural change when touch-control demonstration module, when polaroid and displays separated arrange, existing polaroid will be no longer applicable.
Based on this, inventor finds through research, and a kind of novel polaroid is provided, and between touch function layer and display, and is bonded in described touch function layer towards the surface of described display, and described polaroid comprises:
The TAC film being oppositely arranged and the 2nd TAC film;
PVA film between a described TAC film and the 2nd TAC film;
Be positioned at the surperficial optical cement that a described TAC film deviates from described PVA film;
Wherein, a described TAC film is the TAC film with wide-angle film.
From above-mentioned technical scheme, the polaroid that the utility model provides is between touch function layer and display, and be bonded in described touch function layer towards the surface of described display, because the polaroid providing in the utility model will be transferred to towards touch function layer towards the adhesive of display in prior art, and pressure sensitive adhesive of the prior art is replaced with and has high light transmitance and compared with the optical cement of strong rubber knotting strength, thereby make polaroid of the present utility model can use the touch-control in polaroid and displays separated to show in module.
It is more than the application's core concept, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from mode described here and implement, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, so the utility model is not subject to the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, when the utility model embodiment is described in detail in detail; for ease of explanation; the sectional view that represents device architecture can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of the utility model protection at this.The three-dimensional space that should comprise in addition, length, width and the degree of depth in actual fabrication.
Below by embodiment, specifically describe polaroid and the touch-control demonstration module that the utility model provides.
An embodiment of the present utility model discloses a kind of polaroid, described polaroid is between touch function layer and display, and be bonded in described touch function layer towards the surface of described display, as shown in Figure 3, described polaroid comprises: the TAC film 52 being oppositely arranged and the 2nd TAC film 53; 53 PVA film 51 between a described TAC film 52 and the 2nd TAC film; Be positioned at the surperficial optical cement 54 that a described TAC film 52 deviates from described PVA film 51; Be positioned at the first surperficial diaphragm 55 that described optical cement 54 deviates from a described TAC film 52; Be positioned at the second surperficial diaphragm 56 that described the 2nd TAC film 53 deviates from described PVA film 51, wherein, it should be noted that, in described the 2nd TAC film, comprise wide-angle film.Described the first diaphragm 55 and the diaphragm of described the second diaphragm 56 for polaroid is played a protective role, to facilitate transportation and the use of polaroid.
Wherein, described optical cement (Optically Clear Adhesive, OCA) is for the extraordinary adhesive of cementing transparent optical element (as camera lens etc.).It has water white transparency, light transmission rate more than 90%, consolidation strength is good, can under room temperature or middle temperature, solidify, and the feature such as cure shrinkage is little.
Optical cement described in the present embodiment can be that solid state optics glue can be also liquid optical cement, in the present embodiment, this is not limited, and considers the manufacture craft of polaroid, and in the present embodiment, preferred described optical cement is solid state optics glue.More preferred, described optical cement is ultraviolet ray (UV) curing type optical cement.
It should be noted that, the film 51 of PVA described in the present embodiment has identical light polarization direction with the PVA film 061 in the polaroid shown in Fig. 2, can find out with the polaroid contrast shown in Fig. 2, the polaroid providing in the present embodiment, its adhesive is positioned at the upper strata of polarizing layer PVA, thereby can bondingly be arranged in the touch function layer of Fig. 3 polaroid top.
Because polaroid described in the present embodiment can be bonded in the surface of touch function layer, and the surface of described touch function layer is also provided with transparent electrode layer, described transparent electrode layer is preferably ITO (tin indium oxide) layer conventionally, adhesive in prior art in polaroid is generally pressure sensitive adhesive, described pressure sensitive adhesive is adhesive made of synthetic resin, generally be faintly acid, after the transparent electrode layer with touch function layer surface bonds together, easily described transparent electrode layer is produced to corrosive attack, in the present embodiment, with optics, replaced pressure sensitive adhesive of the prior art, more preferred described optical cement is without acid type OCA, thereby avoid the etching problem of touch function layer surface ITO.
The polaroid providing in the present embodiment, do not changing on the polarization direction basis of polarizing layer, adhesive is moved to polarizing layer towards a side of described touch function layer, described polaroid can be used at other polaroids not to be shown in module with the bonding touch-control of display, solve polaroid in prior art and cannot use the problem in novel touch control display, can also guarantee the visual angle display effect of described touch control display simultaneously.
In another embodiment of the present utility model, disclose a kind of touch-control and shown module, as shown in Figure 4, comprise touch function layer 2 and display 3 and the first polaroid 5 between described touch function layer and described display, between described the first polaroid 5 and described display 3, have gap, wherein said the first polaroid is a part for the polaroid described in a upper embodiment.Concrete, because the optical cement of described the first polaroid 5 is bonded in described touch function layer 2 towards the surface of described display 3, therefore, the first diaphragm on described the first polaroid need remove in bonding process, and the first polaroid described in the present embodiment only comprises a TAC film and the 2nd TAC film being oppositely arranged; PVA film between a described TAC film and the 2nd TAC film; Be positioned at the surperficial optical cement that a described TAC film deviates from described PVA film; Be positioned at the second surperficial diaphragm that described the 2nd TAC film deviates from described PVA film, and do not comprise and be positioned at the first diaphragm.
It should be noted that, between the first polaroid described in the present embodiment and described display, comprise gap, when described touch-control shows that module is in high light environment, light transmission polaroid enters display, reflex time is carried out on surface at display, owing to comprising gap between polaroid and display, the light of shown device surface reflection can carry out multiple reflections at polaroid and display surface, each reflective polarizers can absorb a part of reflected light, the touch-control of being close to respect to polaroid and display shows module, the touch-control of this kind of structure shows that module is in high light environment, by display surface, reflex to the light intensity decreasing that touch-control shows module outside, thereby improved touch-control and shown the display effect of module in high light.
It should be noted that, for common touch-control, show module, its touch function layer deviates from described polaroid one side and also comprises cover plate, as shown in Figure 4, bonding by adhesive 4 between described cover plate 1 and described touch function layer 2, adhesive described in the present embodiment 4 is preferably OCA, and described cover plate is preferably glass cover-plate.The surrounding of described cover plate also comprises blocks the ink layer (not shown in Fig. 4) that touch-control shows module internal circuit.
The layer of touch function described in the present embodiment can also directly be made in the surface of cover plate; make described cover plate there are protection and two kinds of effects of touch-control; on the cover board directly form ITO conducting film and sensor, form OGS (One Glass Solution, integrated touch-control) touch-screen.
As shown in Figure 5, described touch-control shows that module comprises OGS touch-screen 12 and first polaroid 13 bonding with the touch control layer of described touch-screen, and between described the first polaroid, there is the display 14 in gap, because described OGS touch-screen is the touch-screen that cover plate and touch base plate unite two into one, therefore the ink layer that works the effect of blocking is also printed on the surface at touch function layer place, as shown in the ink layer 16 in Fig. 5.When the first polaroid is bonded in touch function layer surface, because ink layer exists certain thickness, between ink layer and touch function laminar substrate, form ink step, ink step place easily forms the display effect that laminating aeration shows module, for reducing the laminating Bubble formation probability at ink step place, in the present embodiment, in preferred described the first polaroid, the thickness of optical cement is 50 μ m-125 μ m, comprises endpoint value.Because optical cement thickness is larger, can fully fill ink step, thereby reduce the generation of laminating bubble.
It should be noted that, display described in the present embodiment can be liquid crystal display, also can be OLED display, when described display is liquid crystal display, the surface that described liquid crystal display deviates from described touch function layer also comprises the second polaroid, and the polarization direction of described the second polaroid is vertical with the polarization direction of described the first polaroid, thereby the light that guarantees to incide liquid crystal display is polarized light.
The touch-control providing in the present embodiment shows that the polaroid providing in an embodiment is provided module, because polarizing layer in described polaroid is provided with optical cement towards a side of touch function layer, thereby described polaroid can be bonded on touch function layer, the touch-control that is applicable to other structures such as gapped between polaroid and display shows in module, has increased the range of application of polaroid.
In addition, the touch-control providing in the present embodiment shows in module, due to polaroid and displays separated, incide the light of polaroid and display surface, through the space multiple reflections between polaroid and display, can reduce from polaroid and directly reflex to the reflection ray touch-control demonstration module user eyes, thereby in the situation that assurance shows the display view angle effect of module, improve touch-control and shown the display effect that module is used in high light environment.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (9)

1. a polaroid, is characterized in that, between touch function layer and demonstration module, and is bonded in described touch function layer towards the surface of described demonstration module, and described polaroid comprises:
The TAC film being oppositely arranged and the 2nd TAC film;
PVA film between a described TAC film and the 2nd TAC film;
Be positioned at the surperficial optical cement that a described TAC film deviates from described PVA film;
Wherein, described the 2nd TAC film is the TAC film with wide-angle film.
2. polaroid according to claim 1, is characterized in that, described optical cement is ultraviolet hardening optical cement.
3. polaroid according to claim 1, is characterized in that, described optical cement is without acid type optical cement.
4. a touch control display, is characterized in that, comprises touch function layer and shows module, and the first polaroid between described touch function layer and described demonstration module, has gap between described the first polaroid and described demonstration module;
Wherein, described the first polaroid extremely comprises in the direction of described demonstration module successively along described touch function layer:
Be close to described touch function layer towards the optical cement on described demonstration module surface;
Be positioned at the TAC film that described optical cement deviates from described touch function layer surface;
Be positioned at the PVA film that a described TAC film deviates from described optical cement surface;
Be positioned at the 2nd TAC film that described PVA film deviates from a described TAC film surface;
Wherein, described the 2nd TAC film is the TAC film with wide-angle film.
5. touch control display according to claim 4, is characterized in that, described optical cement is without acid type ultraviolet hardening optical cement.
6. touch control display according to claim 4, is characterized in that, described touch function layer is also provided with ink layer towards the surface of described demonstration module.
7. touch control display according to claim 6, is characterized in that, the thickness of described optical cement is 50 μ m-125 μ m, comprises endpoint value.
8. touch control display according to claim 4, is characterized in that, described demonstration module is liquid crystal display.
9. touch control display according to claim 8, is characterized in that, the surface that described liquid crystal display deviates from described touch function layer is also provided with the second polaroid, and the polarization direction of described the second polaroid is vertical with the polarization direction of described the first polaroid.
CN201320825144.1U 2013-12-13 2013-12-13 Polaroid and touch control display Expired - Lifetime CN203720393U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104237994A (en) * 2014-08-22 2014-12-24 京东方科技集团股份有限公司 Polaroid and touch control module
CN105629368A (en) * 2016-03-30 2016-06-01 京东方科技集团股份有限公司 Polaroid and display device
CN106293167A (en) * 2015-05-14 2017-01-04 深圳欧菲光科技股份有限公司 Touching display screen and preparation method thereof
CN106597730A (en) * 2016-12-27 2017-04-26 深圳市华星光电技术有限公司 Liquid crystal display panel and liquid crystal display
CN108984022A (en) * 2018-06-20 2018-12-11 京东方科技集团股份有限公司 Touch panel and display module
CN110109277A (en) * 2019-04-09 2019-08-09 惠州市华星光电技术有限公司 Touch-control display panel and touch control display apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104237994A (en) * 2014-08-22 2014-12-24 京东方科技集团股份有限公司 Polaroid and touch control module
CN106293167A (en) * 2015-05-14 2017-01-04 深圳欧菲光科技股份有限公司 Touching display screen and preparation method thereof
CN105629368A (en) * 2016-03-30 2016-06-01 京东方科技集团股份有限公司 Polaroid and display device
CN106597730A (en) * 2016-12-27 2017-04-26 深圳市华星光电技术有限公司 Liquid crystal display panel and liquid crystal display
CN108984022A (en) * 2018-06-20 2018-12-11 京东方科技集团股份有限公司 Touch panel and display module
CN108984022B (en) * 2018-06-20 2022-03-01 京东方科技集团股份有限公司 Touch panel and display module
CN110109277A (en) * 2019-04-09 2019-08-09 惠州市华星光电技术有限公司 Touch-control display panel and touch control display apparatus
WO2020206804A1 (en) * 2019-04-09 2020-10-15 惠州市华星光电技术有限公司 Touch display panel and touch display device
CN110109277B (en) * 2019-04-09 2021-07-06 惠州市华星光电技术有限公司 Touch display panel and touch display device

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Granted publication date: 20140716