CN112099260A

CN112099260A - Polaroid, display screen body assembly and display device

Info

Publication number: CN112099260A
Application number: CN202010900196.5A
Authority: CN
Inventors: 王俊
Original assignee: Yungu Guan Technology Co Ltd
Current assignee: Yungu Guan Technology Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-12-18
Anticipated expiration: 2040-08-31
Also published as: CN112099260B

Abstract

The application discloses a polaroid, a display screen body assembly and a display device, wherein the display screen body assembly comprises a screen body and the polaroid, and the screen body is provided with a display surface; the polaroid is arranged on the display surface and can be bent together with the screen body, wherein one side of the polaroid, which faces the screen body, is provided with a plurality of missing parts. This application display screen body subassembly can reduce stress concentration, and then reduces fold or bubble.

Description

Polaroid, display screen body assembly and display device

Technical Field

The application relates to the technical field of display, in particular to a polarizer, a display screen body assembly and a display device.

Background

When the screen body is bent, the polaroid is bent along with the screen body, and stress concentration is easily formed in the bending process of the polaroid, so that the polaroid is easy to generate wrinkles or bubbles and even fails to generate optical color cast.

Disclosure of Invention

The application provides a polaroid, display screen body subassembly and display device to when solving current polaroid and the laminating of the screen body, stress concentration appears in the polaroid, and forms fold or bubble scheduling problem.

In order to solve the above technical problem, the present application provides a display screen body assembly, including: a screen body having a display surface; the polaroid is arranged on the display surface and can be bent together with the screen body, wherein one side of the polaroid, which faces the screen body, is provided with a plurality of missing parts.

Wherein, the missing part is a groove arranged on the surface of the polaroid and can tend to close along with bending; preferably, the cross-sectional area of the groove decreases gradually in a direction from the notch to the groove bottom.

Wherein, the polaroid includes: a main polarizing region; the side polarizing area is arranged around the periphery of the main polarizing area; the corner light deflection area is connected with the adjacent side light deflection area; the grooves are arranged at least one of the side light deflection area and the corner light deflection area; preferably, the lateral polarized light regions are four.

The grooves are arranged at intervals in the corner light deflection area, and are arranged in a divergence shape from one end close to the main light deflection area to one end far away from the main light deflection area; or the grooves are arranged at intervals in the corner light deflection area, the grooves extend from the main light deflection area to the direction far away from the main light deflection area, and the extending directions of the grooves are parallel to each other; the bending degree corresponding to each position of the corner light deflection area is decreased progressively from the middle of the corner light deflection area to the direction close to the two adjacent side light deflection areas respectively, and the opening angles of the grooves are decreased progressively from the middle of the corner light deflection area to the direction close to the two adjacent side light deflection areas respectively.

The grooves are arranged at intervals in the corner polarizing region along the direction far away from the main polarizing region, and extend from one adjacent side polarizing region of the corner polarizing region to the direction close to the other adjacent side polarizing region; the bending degree corresponding to each position of the corner polarized light region is gradually increased along the direction far away from the main polarized light region, and the opening angles of the plurality of grooves are gradually increased along the direction far away from the main polarized light region; or the bending degree corresponding to each position of the corner light deflection area is gradually increased and then gradually reduced along the direction far away from the main light deflection area, and the opening angles of the plurality of grooves are gradually increased and then gradually reduced along the direction far away from the main light deflection area.

The grooves are arranged at intervals in the corner light deflection area along the direction far away from the main light deflection area, and the extending direction of the grooves is parallel to the outer edge of the side light deflection area; the bending degree corresponding to each position of the corner deflection area is gradually increased along the interval direction of the plurality of grooves, and the opening angles of the plurality of grooves are gradually increased along the interval direction of the plurality of grooves; or the bending degree corresponding to each position of the corner light deflection area is gradually increased and then gradually reduced along the interval direction of the plurality of grooves, and the opening angle of the plurality of grooves is gradually increased and then gradually reduced along the interval direction of the plurality of grooves.

The grooves are arranged at intervals in the side light deflection area along the direction far away from the main light deflection area, and the extending direction of each groove is parallel to the outer edge of the side light deflection area; the bending degree corresponding to each position of the side polarized light region is gradually increased along the direction far away from the main polarized light region, and the opening angles of the plurality of grooves are gradually increased along the direction far away from the main polarized light region; or the bending degree corresponding to each position of the side light deflection area is gradually increased and then gradually reduced along the direction far away from the main light deflection area, and the opening angles of the plurality of grooves are gradually increased and then gradually reduced along the direction far away from the main light deflection area.

The grooves are arranged at intervals in the corner light deflection area and are arranged in a divergence shape from the main light deflection area to the direction far away from the main light deflection area; preferably, the opening angles of the grooves are gradually increased from the adjacent one-side polarized region of the corner polarized region to the direction close to the adjacent other-side polarized region; or the opening angles of the plurality of grooves are equal, and the value range of the opening angles of the plurality of grooves is 45-60 degrees.

In order to solve the technical problem, the application provides a display device, including the apron and the aforesaid display screen body subassembly, the one side that the polaroid deviates from the screen body is located to the apron, the display screen subassembly is conformal with the apron.

In order to solve the above technical problem, the present application provides a polarizer, wherein one side of the polarizer is provided with a plurality of missing portions, and after the polarizer is bent, the plurality of missing portions are located on the concave side of the polarizer.

The beneficial effect of this application is: different from the prior art, the application provides a polarizer, a display screen body assembly and a display device, wherein the display screen body assembly comprises a screen body and a polarizer, and the screen body is provided with a display surface; the polaroid is arranged on the display surface and can be bent together with the screen body, wherein one side of the polaroid, which faces the screen body, is provided with a plurality of missing parts so as to reduce stress concentration through the missing parts and further reduce wrinkles or bubbles.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a cross-sectional view of a first embodiment of a display screen assembly of the present application;

FIG. 2 is a schematic view of the structure of A shown in FIG. 1;

FIG. 3 is a schematic view of a portion of a first embodiment of a polarizer of the present application;

FIG. 4 is a partial cross-sectional view of a second embodiment of a polarizer of the present application;

FIG. 5 is a schematic view of a first groove arrangement of the corner light-deflecting region of the present application;

FIG. 6 is a schematic view of the structure of B shown in FIG. 5;

FIG. 7 is a partial schematic view of a second type of groove arrangement in the corner light deflecting region of the present application;

FIG. 8 is a partial schematic view of a third groove arrangement of the corner light deflecting region of the present application;

FIG. 9 is a partial schematic view of a fourth groove arrangement of the corner light-deflecting region of the present application;

FIG. 10 is a partial schematic view of a fifth groove arrangement of the corner light deflecting region of the present application;

FIG. 11 is a partial schematic view of a sixth groove arrangement of the corner light-deflecting region of the present application;

FIG. 12 is a partial schematic view of a seventh groove arrangement of the corner light-deflecting region of the present application;

FIG. 13 is a partial schematic view of an eighth type of groove arrangement in the corner light-deflecting region of the present application;

FIG. 14 is a schematic structural view of a third embodiment of a polarizer of the present application;

FIG. 15 is a schematic view of a partial structure of a fourth embodiment of a polarizer of the present application;

FIG. 16 is a partial cross-sectional view of a fifth embodiment of a polarizer of the present application;

FIG. 17 is a cross-sectional view of a second embodiment of a display screen assembly of the present application;

FIG. 18 is a schematic view of the structure of C shown in FIG. 17;

FIG. 19 is a cross-sectional view of a first embodiment of a display device of the present application;

fig. 20 is a schematic view of the structure of D shown in fig. 19.

Reference numerals: 1. a screen body; 2. a polarizer; 21. a missing portion; 211. a groove; 212. a sub-deletion; 22. a main polarizing region; 23. a lateral polarized light zone; 24. a corner deflection area; 25. a polarizer original plate; 251. a polyvinyl alcohol layer; 252. a cellulose triacetate layer; 26. a functional film layer; 261. a pressure sensitive adhesive layer; 262. a compensation film layer; 3. a cover plate; 4. and (3) optical cement.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present application, the following describes a polarizer, a display panel assembly and a display device provided by the present invention in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, 2 and 3, fig. 1 is a cross-sectional view of a first embodiment of a display panel assembly of the present application; FIG. 2 is a schematic view of the structure of A shown in FIG. 1; FIG. 3 is a schematic view of a portion of a polarizer according to a first embodiment of the present application.

The display screen body assembly of the embodiment includes a screen body 1 and a polarizer 2, the screen body 1 has a display surface, and the polarizer 2 is disposed on the display surface side of the screen body 1. When the screen 1 is bent, the polarizer 2 can be bent together with the screen 1. When the polarizer 2 is bent along with the bending of the screen body 1, the polarizer 2 is prone to form local stress concentration, and further wrinkles or bubbles are formed on the polarizer 2. In order to reduce the local stress concentration on the polarizer 2, a plurality of missing parts 21 are formed on one side surface of the polarizer 2 facing the screen body 1, and the stress concentration is reduced through the plurality of missing parts 21, so that the wrinkles or bubbles formed by bending the polarizer 2 are reduced; meanwhile, the polaroid 2 can be more attached to the screen body 1 after being bent.

Specifically, the plurality of missing portions 21 are a plurality of grooves 211 formed in the surface of the polarizer 2, the plurality of grooves 211 can tend to be closed along with the bending of the polarizer 2, the local stress concentration can be reduced by the closed grooves 211, and the stable characteristics of the polarizer 2 can be ensured. The groove 211 may have any shape as long as it can satisfy the requirement that the groove 211 can be transformed from an open state to a closed state when the polarizer 2 bends along the panel 1, and preferably, the groove 211 is completely closed.

Referring to FIG. 4, FIG. 4 is a partial cross-sectional view of a polarizer according to a second embodiment of the present application.

Further, in order to improve the closing rate of the groove 211, the notch of the groove 211 faces one side surface of the screen body 1, and the cross-sectional area of the groove 211 is gradually reduced along the direction from the notch to the groove bottom, so that the groove 211 is easier to close, and further the stress concentration generated by the screen body 1 is absorbed; meanwhile, the polaroid 2 can be bent and extruded, and the stability of the characteristic of the polaroid 2 is ensured. Preferably, the groove 211 may be a V-shaped groove.

Referring to fig. 5, fig. 5 is a schematic view illustrating a first type of groove arrangement of the corner light-deflecting region according to the present application.

In one embodiment, the polarizer 2 includes a main polarizing region 22, a side polarizing region 23, and a corner polarizing region 24, wherein the side polarizing region 23 is disposed around the outer circumference of the main polarizing region 22, and the corner polarizing region 24 is formed by joining adjacent side polarizing regions 23. The boundary between the main polarizing region 22 and the side polarizing region 23 is determined according to the different types of polarizers 2 bent with respect to the panel 1, and is not limited herein.

Specifically, the polarizer 2 includes four side polarizing regions 23, and adjacent side polarizing regions 23 are joined by corner polarizing regions 24, so that the polarizer 2 includes four corner polarizing regions 24. The plurality of grooves 211 on the polarizer 2 may be provided at least one of the four side polarizing regions 23 and the corner polarizing region 24. For example, the plurality of grooves 211 are disposed only in the four side light-deflecting regions 23, the plurality of grooves 211 are disposed only in the corner light-deflecting region 24, or the plurality of grooves 211 are disposed in both the side light-deflecting regions 23 and the corner light-deflecting region 24, and the like, which is not limited herein.

Because the polaroid 2 is when the screen body 1 is crooked along with, four angles in the polaroid 2 are partial stress concentration more easily in the region 24, consequently set up a plurality of recess 211 on corner region 24. Since the plurality of grooves 211 can be distributed in different arrangement manners, for example, there are at least eight types of arrangement manners, which are specifically described as follows:

referring to fig. 6, fig. 6 is a schematic structural diagram of B shown in fig. 5.

Arrangement of the first type of grooves 211: referring to fig. 5, the plurality of grooves 211 are arranged at intervals in the corner light-deflecting region 24, and the interval distance is not limited; the plurality of grooves 211 are divergently arranged from one end close to the main polarizing region 22 to one end far away from the main polarizing region 22, that is, the density of the end, close to the main polarizing region 22, of the plurality of grooves 211 is greater than that of the end, far away from the main polarizing region 22, of the plurality of grooves 211, so that the stress concentration of the corner polarizing region 24 is reduced in a wider range.

Referring to fig. 7, fig. 7 is a partial schematic view of a second type of groove arrangement of the corner light-deflecting region according to the present application.

Second type of groove 211 arrangement: referring to fig. 5, the plurality of grooves 211 are arranged at intervals in the corner light-deflecting region 24, and the interval distance is not limited; the plurality of grooves 211 extend from the main polarizing region 22 to a direction away from the main polarizing region 22, and the extending directions of the grooves 211 are parallel to each other, so as to reduce the stress concentration of the corner polarizing region 24 in a wider range.

The degree of curvature corresponding to each position of the corner polarized light region 24 is a case when the polarizer 2 is bent together with the screen body 1, and each position of the corner polarized light region 24 is correspondingly curved. Since the bending degree of the corner light-deflecting region 24 corresponds to the opening angle of the groove 211, the larger the bending degree is, the larger the opening angle of the groove 211 is, so as to ensure that the groove 211 can be closed, which not only can reduce stress concentration, but also can ensure the optical effect of the polarizer 2. That is, the opening angle of the recess 211 is matched with the bending degree, so as to reduce the stress concentration. Wherein the opening angle of the groove 211 is an angle formed when both sidewalls of the groove 211 intersect.

When the plurality of grooves 211 are arranged in a divergent manner or in parallel, the bending degrees corresponding to the positions of the corner light deflecting area 24 are respectively decreased progressively from the middle of the corner light deflecting area 24 to the direction close to the two adjacent side light deflecting areas 23, and the opening angles of the plurality of grooves 211 are respectively decreased progressively from the middle of the corner light deflecting area 24 to the direction close to the two adjacent side light deflecting areas 23, so that the bending degrees corresponding to the positions of the corner light deflecting area 24 are satisfied by the opening angles of the plurality of grooves 211, and the stress concentration of the corner light deflecting area 24 is reduced.

Referring to fig. 8, fig. 8 is a partial schematic view of a third type of groove arrangement of the corner light-deflecting region according to the present application.

Arrangement of the third type of grooves 211: referring to fig. 5, the plurality of grooves 211 are spaced apart from each other at the corner polarizing region 24 in a direction away from the main polarizing region 22, and the spacing distance therebetween is not limited; the plurality of grooves 211 extend from the adjacent one-side light-deflecting region 23 of the corner light-deflecting region 24 to the direction close to the adjacent other-side light-deflecting region 23, so as to reduce the stress concentration of the corner light-deflecting region 24 in a wider range.

The bending degree corresponding to each position of the corner polarizing area 24 may have two types, the first type is that the bending degree corresponding to each position of the corner polarizing area 24 gradually increases along the direction away from the main polarizing area 22, the opening angle of the plurality of grooves 211 gradually increases along the direction away from the main polarizing area 22, so that the size of the bending degree corresponding to each position of the corner polarizing area 24 is satisfied by the size of the opening angle of the plurality of grooves 211, and the stress concentration of the corner polarizing area 24 is reduced.

The second is that the bending degree that each position of corner polarizing area 24 corresponds first crescent then reduces along the direction of keeping away from main polarizing area 22, and the opening angle of a plurality of recess 211 is along the direction of keeping away from main polarizing area 22 crescent then reduces gradually earlier to satisfy the bending degree's that each position of corner polarizing area 24 corresponds size through the opening angle size of a plurality of recess 211, thereby reduce corner polarizing area 24 stress concentration.

Referring to fig. 9, fig. 9 is a partial schematic view of a fourth type of groove arrangement of the corner light-deflecting region according to the present application.

Fourth type of groove 211 arrangement: with reference to fig. 5, a part of the plurality of grooves 211 is divergently arranged from one end close to the main polarization region 22 to one end far away from the main polarization region 22; the other part of the plurality of grooves 211 extends from the adjacent one-side light-deflecting region 23 of the corner light-deflecting region 24 to the direction close to the adjacent other-side light-deflecting region 23, so that the part of the grooves 211 is arranged in a manner of being sandwiched. The opening angles of a part of the plurality of grooves 211 are gradually decreased from the middle of the corner polarizing region 24 to the direction close to the two adjacent side polarizing regions 23, and the opening angle of the other part of the plurality of grooves 211 can be gradually increased along the direction far away from the main polarizing region 22 or the opening angles of the plurality of grooves 211 are gradually increased and then gradually decreased along the direction far away from the main polarizing region 22, so that the stress concentration of the corner polarizing region 24 is reduced.

Referring to fig. 10, fig. 10 is a partial schematic view of a fifth type of groove arrangement of the corner light-deflecting region of the present application.

Arrangement of the fifth type of grooves 211: with reference to fig. 5, a part of the plurality of grooves 211 extends from the main polarizing region 22 to a direction away from the main polarizing region 22, and the extending directions of the grooves 211 are parallel to each other; the adjacent one side polarized light region 23 of another part several recess 211 is to the direction that is close to adjacent other side polarized light region 23 from corner polarized light region 24 and extends for the setting of clamp fork between the partial recess 211, the opening angle of a part several recess 211 is from the middle part of corner polarized light region 24 to the direction that is close to two adjacent side polarized light regions 23 and is decreased gradually respectively, the opening angle of another part several recess 211 can be along keeping away from the direction of main polarized light region 22 and increase gradually or the opening angle of a plurality of recess 211 is along keeping away from the direction of main polarized light region 22 and increase gradually then reduce gradually, thereby reduce corner polarized light region 24 stress concentration.

Referring to fig. 11, fig. 11 is a partial schematic view of a sixth type of groove arrangement of the corner light-deflecting region according to the present application.

Sixth type of groove 211 arrangement: referring to fig. 5, a plurality of grooves 211 are spaced apart from each other at the corner polarizing region 24 in a direction away from the main polarizing region 22, and the spacing therebetween is not limited; the extending direction of the plurality of grooves 211 is parallel to the outer edge of the side polarizing region 23 to more extensively reduce stress concentration of the corner polarizing region 24.

The bending degree that each position of above-mentioned corner bias zone 24 corresponds can have two kinds of types, and the first one is that the bending degree that each position of corner bias zone 24 corresponds increases along the interval direction of a plurality of recess 211 gradually, and the opening angle of a plurality of recess 211 increases along the interval direction of a plurality of recess 211 gradually to satisfy the bending degree change that each position of corner bias zone 24 corresponds, thereby reduce corner bias zone 24 stress concentration.

The second is that the bending degree that each position of corner bias zone 24 corresponds first crescent then reduces gradually along the interval direction of a plurality of recess 211, and the opening angle of a plurality of recess 211 increases gradually again along the interval direction of a plurality of recess 211 to satisfy the bending degree that each position of corner bias zone 24 corresponds, thereby reduce corner bias zone 24 stress concentration.

Referring to fig. 12, fig. 12 is a partial schematic view illustrating a seventh groove arrangement manner of the corner light-deflecting region according to the present application.

In one embodiment, the missing portion 21 includes a plurality of sub-missing portions 212 arranged at intervals in the extending direction thereof, i.e., the plurality of sub-missing portions 212 constitute the missing portion 21 to reduce stress concentration.

Arrangement of the seventh type of grooves 211: that is, a plurality of sub-recesses 212 may be formed in the four side light-deflecting regions 23 and/or the corner light-deflecting region 24, and the sub-recesses 211 formed by the plurality of sub-recesses 212 may constitute a recess 211 arrangement manner to reduce the stress concentration of the corner light-deflecting region 24 in a wider range.

Referring to fig. 13, fig. 13 is a partial schematic view of an eighth type of groove arrangement of the corner light-deflecting region according to the present application.

Eighth type of groove 211 arrangement: the plurality of grooves 211 and the plurality of sub-grooves 211 may be simultaneously provided at the side polarizing region 23 or the corner polarizing region 24 to more widely reduce stress concentration of the corner polarizing region 24.

The arrangement of the grooves 211 corresponding to the four corner polarization regions 24 in the polarizer 2 may be arbitrarily combined according to the above-mentioned arrangement of the grooves 211, for example, the four corner polarization regions 24 are all provided with the arrangement of the first type of grooves 211; or one corner light-deflecting region 24 is provided with a first type of groove 211 arrangement mode, and the other three corner light-deflecting regions 24 are provided with a third type of groove 211 arrangement mode; or one corner light-deflecting region 24 is provided with the second type of grooves 211, the other corner light-deflecting region 24 is provided with the third type of grooves 211, and the last two corner light-deflecting regions 24 are provided with the fourth type of grooves 211, and the arrangement of the grooves 211 corresponding to the four corner light-deflecting regions 24 is not limited herein.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a polarizer according to a third embodiment of the present application.

Since the four side polarized regions 23 in the polarizer 2 also form local stress concentration when the polarizer 2 bends along with the screen body 1, the plurality of grooves 211 may be disposed at least one of the four side polarized regions 23, for example, one side polarized region 23, two side polarized regions 23, and the like, which is not limited herein.

In one embodiment, the plurality of grooves 211 are spaced apart from each other in the side polarizing region 23 in a direction away from the main polarizing region 22, and the spacing distance therebetween is not limited; the extending direction of the plurality of grooves 211 is parallel to the outer edge of the side polarizing region 23 to more extensively reduce the stress concentration of the side polarizing region 23. A plurality of sub-deletions 212 may be provided at the side polarizing region 23, forming respective grooves 211.

The bending degree corresponding to each position of the side polarized light region 23 may have two types, the first type is that the bending degree corresponding to each position of the side polarized light region 23 gradually increases along the direction away from the main polarized light region 22, and the opening angles of the plurality of grooves 211 gradually increase along the direction away from the main polarized light region 22, so that the size of the bending degree change corresponding to each position of the side polarized light region 23 is satisfied through the opening angles of the plurality of grooves 211, thereby reducing the stress concentration of the corner polarized light region 24.

The second is that the bending degree corresponding to each position of the side polarized light region 23 gradually increases and then gradually decreases along the direction away from the main polarized light region 22, and the opening angles of the plurality of grooves 211 gradually increases and then gradually decreases along the direction away from the main polarized light region 22, so as to satisfy the change of the bending degree corresponding to each position of the side polarized light region 23 through the opening angles of the plurality of grooves 211, thereby reducing the stress concentration of the corner polarized light region 24.

Referring to fig. 15, fig. 15 is a schematic partial structure diagram of a polarizer according to a fourth embodiment of the present application.

In an embodiment, with reference to fig. 3 and 5, when the plurality of grooves 211 are arranged at intervals in the corner polarizing region 24, and the plurality of grooves 211 are arranged divergently or in parallel from the main polarizing region 22 to a direction away from the main polarizing region 22, the opening angles of the plurality of grooves 211 are gradually increased from the adjacent one-side polarizing region 23 of the corner polarizing region 24 to a direction close to the adjacent other-side polarizing region 23. The direction indicated by the arrow a in fig. 3 is a direction in which the opening angle of the recess 211 gradually increases.

For example, when the polarizer 2 has a rectangular shape, the polarizer 2 includes two side polarizing regions 23 disposed corresponding to long sides of the main polarizing region 22 and two side polarizing regions 23 disposed corresponding to short sides of the main polarizing region 22. The opening angle of the plurality of grooves 211 is gradually increased from the side light deflecting regions 23 adjacent to the corner light deflecting regions 24 and corresponding to the long sides to the direction close to the other side light deflecting region 23 adjacent to the long sides and corresponding to the short sides, so that the stress, the wrinkle or the bubble is discharged from the side light deflecting regions 23 corresponding to the long sides to the direction close to the other side light deflecting region 23 corresponding to the short sides, the stress, the wrinkle or the bubble is released at the large opening angle of the grooves 211, and the stress concentration is reduced.

Of course, the opening angles of the plurality of grooves 211 may also increase from the side light deflecting regions 23 adjacent to the corner light deflecting regions 24 and corresponding to the short sides to the direction close to the other side light deflecting region 23 adjacent to the corner light deflecting regions and corresponding to the long sides, which is also beneficial to reducing stress concentration.

No matter the opening angles of the grooves 211 are gradually increased from the adjacent one-side light deflecting region 23 of the corner light deflecting region 24 to the direction close to the adjacent other-side light deflecting region 23, any side of the corner light deflecting region 24 can release stress, wrinkles or bubbles. When the corner light-deflecting region 24 is bent, the surface fraction at the center of the corner light-deflecting region 24 is significantly smaller than the surface fraction at the side of the corner light-deflecting region 24. The maximum value of the opening angle of the groove 211 is set at any side of the corner light-deflecting region 24, so that the influence on the optical effect of the polarizer 2 caused by the fact that the groove 211 is set in the middle of the corner light-deflecting region 24 is reduced.

Further, the opening angles of the plurality of grooves 211 range from 0 ° to 90 °, such as 0 °, 10 °, 40 °, 60 °, 90 °, and the like. When the opening angles of the plurality of recesses 211 are arranged incrementally, the difference between the opening angles of the adjacent recesses 211 may be the same value. If the opening angle of the grooves 211 may be 60 °, 70 °, 80 °, 90 °, the difference between the opening angles of the adjacent grooves 211 is 10 °. Of course, the difference between the opening angles of the adjacent recesses 211 may also be different values. If the opening angle of the groove 211 is 63 °, 70 °, 85 °, 90 °, the difference between the adjacent V-shaped angles is 5 °, 15 °, 7 °, etc.

In an embodiment, with reference to fig. 3 and fig. 15, when the plurality of grooves 211 are arranged at intervals in the corner polarizing region 24, and the plurality of grooves 211 are divergently arranged or arranged in parallel from the main polarizing region 22 to a direction away from the main polarizing region 22, the opening angles of the plurality of grooves 211 are equal, so as to reduce the stress concentration in the corner polarizing region 24.

Further, the opening angle of the plurality of grooves 211 ranges from 45 ° to 60 °. For example, the opening angle of the groove 211 may be 45 °, 50 °, 55 °, 60 °, etc.

In an embodiment, the opening angles of the plurality of grooves 211 decrease from the middle of the corner light-deflecting region 24 to the direction close to the two adjacent side light-deflecting regions 23, respectively (not shown), so that the stress, wrinkle or bubble is released at the groove 211 having a large opening angle at the middle of the corner light-deflecting region 24. Since the degree of bending of the middle portion of the corner light-deflecting region 24 is relatively large, when the corner light-deflecting region 24 is bent, the surface area of the middle portion of the corner light-deflecting region 24 is smaller than the surface area of the side of the corner light-deflecting region 24. In order to prevent the optical performance from being affected by too large an opening angle of the groove 211 in the middle of the corner polarizing region 24, it may be considered to set the density of the groove 211 in the middle of the corner polarizing region 24 to be smaller than the density of the grooves 211 at both sides of the corner polarizing region 24.

Further, the opening angles of the plurality of grooves 211 range from 0 ° to 90 °, and the setting condition of the opening angles of the grooves 211 is the same as the setting condition of the opening angles of the grooves 211 mentioned in the above embodiments, which is not described herein again.

In one embodiment, the closed line formed by the closed grooves 211 on the polarizer 2 along with the bending thereof is perpendicular to the section of the display surface at the corresponding position, which can further improve the stress concentration.

Referring to fig. 16, 17 and 18, fig. 16 is a partial cross-sectional view of a fifth embodiment of a polarizer of the present application; FIG. 17 is a cross-sectional view of a second embodiment of a display screen assembly of the present application; fig. 18 is a schematic structural view of C shown in fig. 17.

Because most of the existing polarizer 2 is formed by a dry stretching process or a wet stretching process, and because the polarizer 2 has a thin structure, the structure of the missing part 21 in the embodiment is difficult to be formed after the polarizer 2 is formed by the stretching process, and because the missing part 21 is the groove 211 arranged on the surface of the polarizer 2, the polarizer 2 and the groove 211 thereof in the embodiment are integrally formed by a coating forming method and then connected to the screen body 1. That is, a plurality of grooves 211 are formed in the polarizer 2 formed by coating. The coating formation may be performed by a coating method or an inkjet printing method, and is not limited herein.

In order to reduce the difficulty of forming the recess 211 by directly coating the polarizer 2 and reduce the production cost of the display panel assembly, in another embodiment, the polarizer 2 includes a polarizer original plate 25 and a functional film 26 disposed on the polarizer original plate 25, the functional film 26 is disposed between the polarizer original plate 25 and the panel 1, wherein only the functional film 26 is formed by coating.

The polarizer original plate 25 is used as a basic structure of the polarizer 2, and includes a polyvinyl alcohol layer 251 and a cellulose triacetate layer 252 disposed on both sides of the polyvinyl alcohol layer 251, and the polarizer original plate 25 is used for performing a polarizing function.

The type of the polarizer 2 is not limited, because the type of the functional film 26 is large. When the polarizer 2 is a TN (Twisted Nematic) polarizer, an STN (super Twisted Nematic) polarizer, the functional film layer 26 may be a pressure sensitive film, a semi-permeable film, a reflective film, or the like. When the polarizer 2 is an STN complementary sheet, a TFT (Thin Film Transistor display) sheet, the functional Film layer 26 may be a pressure sensitive Film, a retardation Film, or the like. As shown in fig. 16, the functional film 26 includes a retardation film 262 and pressure-sensitive films 261 disposed on both sides of the retardation film. In the actual process, the polarizer 2 can be directly coated on the screen body 1, and a protective film, a release film and the like can be omitted.

Specifically, the plurality of grooves 211 are formed in the functional film 26, so that stress concentration can be reduced.

In the actual manufacturing process of the polarizer 2, in order to facilitate the uniformity of the coating of the functional film layer 26 and the coating of the functional film layer 26, the polarizer original plate 25 contains the cellulose triacetate layer 252, and since the cellulose triacetate layer 252 is thick, a recess can be directly formed on the cellulose triacetate layer 252, then the functional film layer 26 (such as a pressure-sensitive film, a semipermeable membrane and a reflective film) is sequentially coated on the cellulose triacetate layer 252, and then a plurality of grooves 211 extending towards the polarizer original plate 25 are formed to form a 'peak' and a 'valley' shape. The cellulose triacetate layer 252 functions as a support layer 26 and can serve as a support surface for coating. The coating formation may be performed by a coating method or an inkjet printing method, and is not limited herein.

The display screen body assembly in the embodiment comprises a screen body and a polaroid, wherein the screen body is provided with a display surface; the polaroid is arranged on the display surface and can be bent together with the screen body, wherein one side of the polaroid, which faces the screen body, is provided with a plurality of missing parts so as to reduce stress concentration through the missing parts, thereby reducing folds or bubbles formed by bending the polaroid.

Referring to fig. 19 and 20, fig. 19 is a cross-sectional view of a first embodiment of a display device of the present application; fig. 20 is a schematic view of the structure of D shown in fig. 19.

The display device in the embodiment comprises a cover plate 3 and the display screen body assembly, wherein the cover plate 3 is arranged on one side of the polaroid 2, which is far away from the screen body 1, and the display screen body assembly is conformal with the cover plate 3. The cover plate 3 is a flexible cover plate, and the edge area of the cover plate 3 is set to be arc-shaped. When the display screen body assembly is attached to the cover plate 3, the display screen body assembly is more easily attached to the inner cavity of the cover plate 3 due to the fact that the plurality of grooves 211 are closed.

The display screen body assembly is adhered to the cover plate 3 by transparent optical glue 4. In the bonding process, the optical paste 4 is filled between the cover plate 3 and the display panel assembly, and a part of the optical paste 4 is filled in the incompletely closed groove 211. When the optical cement 4 is cured, the optical cement 4 filled in the groove 211 is also cured, thereby bonding the opening of the groove 211 to compensate for the incomplete closing of the groove 211.

In the practical process, when the bottom of the upper groove 211 of the polarizer 2 protrudes out of one side of the cover plate 3, in order to prevent the influence of a plurality of protrusions on the cover plate 3, the polarizer 2 is attached to the cover plate 3, so that the thickness of the optical cement 4 can be increased, the optical cement 4 is flat on one side close to the cover plate 3, and the influence on the protruding cover plate 3 is reduced.

It should be noted that the display panel assembly in this embodiment is the embodiment described in the above embodiments, and is not described herein again.

In the embodiment, one side of the polarizer is provided with a plurality of missing parts, and after the polarizer is bent, the plurality of missing parts are positioned on the concave side of the polarizer so as to reduce stress concentration caused by bending.

It should be noted that the polarizer in this embodiment is the polarizer described in the above embodiments, and details are not described herein.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A display screen body assembly, comprising:

a screen body having a display surface;

the polaroid is arranged on the display surface and can be bent together with the screen body, wherein one side of the polaroid, which faces the screen body, is provided with a plurality of missing parts.

2. The display screen body assembly of claim 1, wherein the missing portion is a groove in the surface of the polarizer that tends to close with the bending;

preferably, the cross-sectional area of the groove decreases gradually in a direction from the notch to the groove bottom.

3. The display screen body assembly of claim 2, wherein the polarizer comprises:

a main polarizing region;

the side polarizing area is arranged around the periphery of the main polarizing area;

the corner light deflection area is connected with the adjacent side light deflection area;

the grooves are arranged at least one of the side light deflection area and the corner light deflection area;

preferably, the side polarizing regions are four.

4. The display screen body assembly of claim 3,

the grooves are arranged at intervals in the corner light deflection area, and are arranged in a divergence shape from one end close to the main light deflection area to one end far away from the main light deflection area; or

The grooves are arranged at intervals in the corner light deflection area, extend from the main light deflection area to a direction far away from the main light deflection area, and the extending directions of the grooves are parallel to each other;

the bending degree corresponding to each position of the corner light deflection region decreases from the middle of the corner light deflection region to the direction close to the two adjacent side light deflection regions respectively, and the opening angles of the grooves decrease from the middle of the corner light deflection region to the direction close to the two adjacent side light deflection regions respectively.

5. The display screen body assembly of claim 3,

the grooves are arranged at intervals in the corner polarizing regions along the direction far away from the main polarizing region, and the grooves extend from one side polarizing region adjacent to the corner polarizing region to the direction close to the other side polarizing region adjacent to the corner polarizing region;

the bending degree corresponding to each position of the corner light deflection area is gradually increased along the direction far away from the main light deflection area, and the opening angles of the grooves are gradually increased along the direction far away from the main light deflection area; or

The bending degree corresponding to each position of the corner light deflection area is gradually increased and then gradually decreased along the direction far away from the main light deflection area, and the opening angles of the grooves are gradually increased and then gradually decreased along the direction far away from the main light deflection area.

6. The display screen body assembly of claim 3,

the grooves are arranged at intervals in the corner light deflection area along the direction far away from the main light deflection area, and the extending direction of the grooves is parallel to the outer edge of the side light deflection area;

the bending degree corresponding to each position of the corner light deflection area is gradually increased along the spacing direction of the plurality of grooves, and the opening angles of the plurality of grooves are gradually increased along the spacing direction of the plurality of grooves; or

The bending degree corresponding to each position of the corner light deflection area is gradually increased and then gradually decreased along the interval direction of the plurality of grooves, and the opening angles of the plurality of grooves are gradually increased and then gradually decreased along the interval direction of the plurality of grooves.

7. The display screen body assembly of claim 3,

the grooves are arranged at intervals in the side light deflection area along the direction far away from the main light deflection area, and the extending direction of each groove is parallel to the outer edge of the side light deflection area;

the bending degree corresponding to each position of the side light deflection area is gradually increased along the direction far away from the main light deflection area, and the opening angles of the grooves are gradually increased along the direction far away from the main light deflection area; or

The bending degree corresponding to each position of the side light deflection area is gradually increased and then gradually decreased along the direction far away from the main light deflection area, and the opening angles of the grooves are gradually increased and then gradually decreased along the direction far away from the main light deflection area.

8. The display screen body assembly of claim 3, wherein the plurality of grooves are spaced apart at the corner polarizing region and are arranged to diverge away from the main polarizing region;

preferably, the opening angles of the plurality of grooves are arranged in a direction from one adjacent side polarized region of the corner polarized region to the other adjacent side polarized region in an increasing manner; or the opening angles of the grooves are equal, and the value range of the opening angles of the grooves is 45-60 degrees.

9. A display device, comprising:

the display screen body assembly of any one of claims 1 to 8, wherein the cover plate is disposed on a side of the polarizer facing away from the screen body, and the display screen body assembly conforms to the cover plate.

10. The polaroid is characterized in that one side of the polaroid is provided with a plurality of missing parts, and after the polaroid is bent, the missing parts are positioned on the concave side of the polaroid.