A kind of OLED display moduleTechnical field
The present invention relates to display field, in particular to a kind of OLED display module.
Background technique
Tight demand with people to flexible touch display device and electronic product, traditional liquid crystal display (LCD)It is no longer applicable in, and organic light emitting diode display flexible (OLED) is because its more preferably optical property is (in particular about foldingProperty) and increasingly by the expectation of consumer, therefore the frivolous property of flexible OLED and flexible touch panel are required more and more tighterLattice.
Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display is due to having wide viewThe advantages that angle, high colour gamut, low-power consumption, it is increasingly becoming the mainstream of display industry, and the OLED for developing flexible foldable is shownScreen is increasingly becoming the target of industry development.In the modular structure of OLED, as it ensure that bending performance, compared to fixed curved surfaceOLED for, need to replace with flexible cover plate into cover board diaphragm.In development process, in order to ensure bending performance, be thinned be mustRight trend, but the reduction for being possible to cause the reduced performance or reliability of functional layer is thinned, for example, hardness reduces, bendingThe problems such as fracture.And surface hardness is one of the important performance of mould group concern.Mould group is thinned centainly along with requiring glue simultaneouslyIt is thinned, and being thinned for glue will reduce the Joint Strength at interface, and the risk of fracture is just had in bending process.
The polaroid used in OLED display is usually rotatory polarization piece, and natural light can be changed into rotatory polarization by it.And that realizes this function actually has a double-layer structure, one layer is line polarisation layer, and natural light can be changed into linearly polarized photon, shouldLayer can be tension type material, or the material of application type, another layer are buffer layer, line polarisation can be changed into circlePolarisation.Rotatory polarization piece can further reduce the reflection on OLED display surface, and raising displays contrast.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of OLED display modules, to solve to need to make in the prior artPolaroid is connect with touch layer or other function layer with optical cement, to keep display module blocked up.
The technical solution to solve the above problems is: the present invention provides a kind of OLED display modules, including an at least polarisationPiece and several functional layers, the polaroid are set to the surface of an at least functional layer.
Further, the OLED display module further includes flexible cover plate, and the polaroid includes line polarisation layer；The linePolarizing layer is set under the flexible cover plate.
Further, the polaroid further includes being set to rotatory polarization of the line polarisation layer far from the flexible cover plate sideLayer；The functional layer includes touch layer, is set to the rotatory polarization layer far from line polarisation layer side；First optical adhesive layer, ifBetween the rotatory polarization layer and the line polarisation layer.
Further, the functional layer further includes panel, is set to the touch layer far from line polarisation layer side；BackPlate is set to the panel far from the touch layer side；Buffer layer is set to the backboard far from the panel side；Wherein, instituteIt states and is equipped with third optical adhesive layer between panel and the backboard, the 4th optical cement is equipped between the backboard and the buffer layerLayer is equipped with the 5th optical adhesive layer between the panel and the touch layer.
Further, the functional layer includes touch layer, is set to the line polarisation layer far from the flexible cover plate side；InstituteStating polaroid further includes rotatory polarization layer, and the rotatory polarization layer is set to the touch layer far from line polarisation layer side.
Further, the functional layer further includes panel, is set to the rotatory polarization layer far from line polarisation layer side；BackPlate is set to the panel far from rotatory polarization layer side；Buffer layer is set to the backboard far from the panel side；Wherein,It is equipped with the 4th optical adhesive layer between the panel and the backboard, the 5th optical cement is equipped between the backboard and the buffer layerLayer is equipped with third optical adhesive layer between the panel and the rotatory polarization layer.
Further, the second optical adhesive layer is equipped between the touch layer and the rotatory polarization layer.
Further, the functional layer further includes panel, is set to the rotatory polarization layer far from line polarisation layer side；BackPlate is set to the panel far from rotatory polarization layer side；Buffer layer is set to the backboard far from the panel side；Wherein,It is equipped with the 4th optical adhesive layer between the panel and the backboard, the 5th optical cement is equipped between the backboard and the buffer layerLayer is equipped with third optical adhesive layer between the panel and the rotatory polarization layer.
Further, the OLED display module further includes flexible cover plate；The polaroid includes that line polarisation layer and circle are inclinedPhotosphere；The functional layer further includes touch layer, and the touch layer includes the first touch layer and the second touch layer；Wherein, describedOn flexible cover plate described in one touch layer；The line polarisation layer is set to first touch layer far from the flexible cover plate side；InstituteThe second touch layer is stated set on the line polarisation layer far from first touch layer side；The rotatory polarization layer is set to second touchingLayer is touched far from line polarisation layer side.
Further, the flexible cover plate includes hard coat, and the hard coat is set to the line polarisation layer far from instituteIt states on rotatory polarization layer.
The invention has the advantages that OLED display module of the invention is by the way that the line polarisation piece in polaroid to be directly coated atOn flexible cover plate or touch layer, rotatory polarization piece is directly coated at touch layer or other function layer surface, so that it is aobvious to reduce OLEDThe integral thickness for showing mould group, since touch layer includes substrate and line layer, wherein line polarisation layer can also be coated on substrate andBetween line layer, the hard coat of flexible cover plate can also be directly coated at line polarisation on piece by the present invention, be substantially reducedThe thickness of OLED display module.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples.
Fig. 1 is the OLED display module schematic diagram in embodiment 1.
Fig. 2 is the flexible cover plate schematic diagram in embodiment 1.
Fig. 3 is the OLED display module schematic diagram in embodiment 2.
Fig. 4 is the OLED display module schematic diagram in embodiment 3.
Fig. 5 is the OLED display module partial schematic diagram in embodiment 4.
In figure
10 flexible cover plates；20 polaroids；
30 functional layers；110 substrate layers；
120 hard coats；210,2201,2102,2103 line polarisation piece；
220,2201,2202,2203 rotatory polarization piece；310,3101,3102,3103 touch layer；
320 panels；330 backboards；
340 buffer layers；311 first touch layers；
312 second touch layers；51 first optical adhesive layers；
52 second optical adhesive layers；53 third optical adhesive layers；
54 the 4th optical adhesive layers；55 the 5th optical adhesive layers；
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schemaExample.Direction term that the present invention is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom" etc. are onlyWith reference to the direction of annexed drawings.Therefore, the direction term used is to illustrate and understand the present invention, rather than to limit this hairIt is bright.
Embodiment 1
As shown in Figure 1, in the present embodiment, OLED display module of the invention include flexible cover plate 10, polaroid 20 andFunctional layer 30.
The flexible cover plate 10 is the flexible cover plate of novel foldable, is arranged on OLED display module surface layer, plays anti-It scrapes, the effect of dust-proof and corrosion-resistant.As shown in Fig. 2, the flexible cover plate 10 includes substrate layer 110 and hard in the present embodimentCoating 120.
The polaroid 20 includes line polarisation layer 210 and rotatory polarization layer 220, and unlike traditional polaroid, it is notTension type PVA material preparation, it can be produced by coating, at present be curable orientation liquid crystal layer coating preparationMade of, the inclined layer 210 of outlet and the inclined layer 220 of circle can be prepared respectively by different orientation results.But it is not limited to liquid crystalMaterial is also possible to other materials, it is desirable that it can have the material of notable difference for axially different extinction system.Due to application typePolaroid 20 is to steam and insensitive, and temperature tolerance is more preferable, so not needing special Protect Layer；The line polarisationThe thickness of layer 30 and the rotatory polarization piece 220 is generally between 1 μm to 5 μm.
In the present embodiment, in 10 production process of flexible cover plate, directly the line polarisation layer 210 is coated on described10 surface of flexible cover plate, without passing through flexible cover plate 10 and the line polarisation layer 210 described in photoetching gluing knot.
The functional layer 30 includes touch layer 310, panel 320, backboard 330 and buffer layer 340.
The touch layer 310 is the touch-control module of OLED display module, and the touch control layer 310 includes substrate 311 and routeLayer 312.
In 310 production process of touch layer, the rotatory polarization layer 220 is directly coated on 310 table of touch layerOn face, the rotatory polarization layer 220 is connect with the line polarisation layer 210 by the first optical adhesive layer 51 later.
The panel 320 is set to the touch layer 310 far from 220 side of rotatory polarization layer, and the panel 320 passes throughThird optical adhesive layer 53 is connected with the touch layer 310.
The backboard 330 is set to the panel 320 far from 310 side of touch layer, and the backboard 330 passes through the 4thOptical adhesive layer 54 is connected with the panel 320.
The buffer layer 340 is set to the backboard 330 far from 320 side of panel, and the buffer layer 340 passes through theFive optical adhesive layers 55 are connected with the backboard 330.
Embodiment 2
The present embodiment and 1 structure of embodiment are substantially similar, the difference lies in that as shown in figure 3, the touch layer of the invention3101 are set between the line polarisation layer 2101 and rotatory polarization layer 2201 of the polaroid 20, specifically, in the touch layerIn 3101 production processes, the line polarisation layer 2101 is directly coated on 3101 one side of touch layer, by the rotatory polarizationLayer 2201 is directly coated at the another side of the touch layer 3101, since the hard coat 120 is also in actual productionIt is formed by coating, therefore the hard coat 120 can be directly coated to the line polarisation piece 2101 far from the touch layer3101 sides.
The panel 320 is set to the touch layer 3101 far from 2201 side of rotatory polarization piece, and the panel 320 is logicalThird optical adhesive layer 53 is crossed to be connected with the touch layer 3101.
The backboard 330 is set to the panel 320 far from 3101 side of touch layer, and the backboard 330 passes through theFour optical adhesive layers 55 are connected with the panel 320.
The buffer layer 340 is set to the backboard 330 far from 320 side of panel, and the buffer layer 340 passes through theFive optical adhesive layers 55 are connected with the backboard 330.
Embodiment 3
The present embodiment is substantially similar in 2 structure of embodiment, as shown in figure 4, the difference lies in that the touch layer of the invention3102 are set between the line polarisation layer 2102 and rotatory polarization layer 2202 of the polaroid 20, specifically, in the touch layerIn 3102 production processes, the line polarisation layer 2102 is directly coated on 3102 one side of touch layer, by the rotatory polarizationLayer 2202 is directly coated at 320 surface of panel, by the second optical adhesive layer 52 by the rotatory polarization layer 2202 far from described320 side of panel is connected with the touch layer 3102 far from 2102 side of line polarisation layer, since the hard coat 120 existsIt is also to be formed by coating, therefore the hard coat 120 can be directly coated at the line polarisation layer 2102 in actual productionFar from 3102 side of touch layer.
The backboard 330 is set to the panel 320 far from 3102 side of touch layer, and the backboard 330 passes through theFour optical adhesive layers 54 are connected with the panel 320.
The buffer layer 340 is set to the backboard 330 far from 320 side of panel, and the buffer layer 340 passes through theFive optical adhesive layers 55 are connected with the backboard 330.
Embodiment 4
The present embodiment is substantially similar in 1 structure of embodiment, as shown in figure 5, the difference lies in that the touch control layer 3103 includesFirst touch layer 311 and the second touch layer 312, wherein first touch layer 311 is substrate layer, second touch layer 312For line layer.
Between the coating of line polarisation layer 2103 and first touch layer 311 and second touch layer 312, the circlePolarizing layer 2203 is coated on first touch layer 311 far from 2103 side of line polarisation layer.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention andMade any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.