CN219574539U - Display device - Google Patents

Abstract

The utility model discloses a display device, which comprises a first light-transmitting component, a viewing angle component, a light-transmitting cover plate component and a liquid crystal panel component, wherein the light-transmitting cover plate component and the liquid crystal panel component are sequentially arranged in a stacked mode; the light-transmitting cover plate component is arranged close to the light-emitting side; the liquid crystal panel assembly is arranged close to the backlight side; the first light-transmitting component and the viewing angle component are arranged between the light-transmitting cover plate component and the liquid crystal panel component; the expansion angle component comprises an expansion angle optical film and a functional coating, and the functional coating is coated on the surface of the expansion angle optical film. The technical problem that the display effect of the high-resolution display device is poor is solved by the aid of the scheme.

Description

Display device

Technical Field

The utility model relates to the technical field of display devices, in particular to a display device.

Background

In the prior art, with the development of the manufacturing technology of the display device, the performance of the product is developed towards a large screen and high resolution.

For a display with high resolution, because of the large number of pixel units to be carried, for the same display and for convenience of production, the alignment accuracy of each pixel unit needs to be improved, which generally results in a low light-emitting aperture ratio of the overall display, such as a technical problem that the display effect of an 8K screen is poor in a large angle (a large side view angle) in display.

Disclosure of Invention

The utility model mainly aims to provide a display device and aims to solve the technical problem that a high-resolution display device is poor in display effect.

In order to achieve the above object, the present utility model provides a display device, which includes a first light-transmitting component, a viewing angle component, a light-transmitting cover plate component and a liquid crystal panel component, wherein the light-transmitting cover plate component and the liquid crystal panel component are sequentially stacked, and the display device has a light-emitting side facing a user and a backlight side opposite to the light-emitting side;

the light-transmitting cover plate component is arranged close to the light-emitting side; the liquid crystal panel assembly is arranged close to the backlight side;

the first light-transmitting component and the viewing angle expansion component are arranged between the light-transmitting cover plate component and the liquid crystal panel component;

the angle of view subassembly includes angle of view optical film and functional coating, the functional coating is applied to angle of view optical film surface.

Optionally, the first light-transmitting component is disposed near the light-transmitting cover board component, and the expansion angle component is disposed between the first light-transmitting component and the liquid crystal panel component; or alternatively, the first and second heat exchangers may be,

the first light-transmitting component is arranged close to the liquid crystal panel component, and the expansion angle component is arranged between the first light-transmitting component and the light-transmitting cover plate component.

Optionally, when the first light-transmitting component is disposed near the liquid crystal panel component, the viewing angle component is disposed between the first light-transmitting component and the light-transmitting cover board component, the display device further includes a gas layer disposed between the viewing angle component and the light-transmitting cover board component.

Optionally, the functional coating further includes a first conductive layer and a substrate layer that are sequentially disposed, and the first conductive layer is disposed towards the light-transmitting cover plate assembly.

Optionally, the functional coating further comprises a second conductive layer disposed between the substrate layer and the viewing angle optical film; or alternatively, the first and second heat exchangers may be,

the second conductive layer is arranged between the expansion angle optical film and the liquid crystal panel component.

Optionally, the functional coating further comprises a light-transmitting layer, and the light-transmitting layer is arranged between the substrate layer and the viewing angle optical film; or alternatively, the first and second heat exchangers may be,

the light-transmitting layer is arranged between the second conductive layer and the expansion angle optical film; or alternatively, the first and second heat exchangers may be,

the light-transmitting layer is arranged between the second conductive layer and the substrate layer.

Optionally, the viewing angle optical film includes a first light guide layer and a second light guide layer;

the first light guide layer is formed on the substrate structural layer and is provided with a plurality of light guide structures which extend in a strip shape and are distributed at intervals; the light guide structure is a trapezoid, a multi-layer trapezoid or a special-shaped multi-layer trapezoid structure with a plane or an arc surface;

the second light guide layer is formed on the first light guide layer and fills up the first light guide layer, and the surface of the second light guide layer is provided with a certain optical function structure; the refractive indexes of the first light guide layer and the second light guide layer are different;

for any light guide structure, the first trapezoid segment introduces incident light into the second trapezoid segment and changes the direction of light rays through the second trapezoid segment so as to increase the emergent angle of the light-transmitting cover plate component; or alternatively, the first and second heat exchangers may be,

each light guide structure comprises a first trapezoid section, a second trapezoid section and a third trapezoid section which are stacked from bottom to top, wherein the side surface of the first trapezoid section is an arc-shaped surface or a plane; the side surface of the second trapezoid section is an arc-shaped surface or a plane; the side surface of the third trapezoid section is an arc surface or a plane; the side of the second trapezoid section and the plane of the light-transmitting cover plate component are arranged at a first angle, the side of the third trapezoid section and the plane of the light-transmitting cover plate component are arranged at a second angle, and the first angle and the second angle are different.

Optionally, the height of the second trapezoid segment is not less than 11.5 microns and not more than 16.5 microns;

and on the cross section of the light guide structure, the width of the bottom edge of the second trapezoid section is not less than 13.5 microns and not more than 18.5 microns, and the width of the top edge of the second trapezoid section is not less than 5 microns and not more than 10 microns;

or alternatively, the first and second heat exchangers may be,

when a third trapezoid segment is provided, the height of the second trapezoid segment is not less than 8 microns and not more than 19 microns, and the total height of the second trapezoid segment and the third trapezoid segment is not less than 9 microns and not more than 23 microns;

and on the cross section of the light guide structure, the width of the bottom edge of the second trapezoid section is not less than 11 microns and not more than 22.5 microns, and the width of the bottom edge of the third trapezoid section is not less than 2.5 microns and not more than 8.5 microns; the third trapezoidal section has a top edge width of not less than 2.5 microns and not greater than 8.5 microns.

Optionally, the refractive index of the first light guiding layer and the second light guiding layer is not less than 1.30 and not more than 2.10; and/or the number of the groups of groups,

the refractive index of the first light guide layer is larger than that of the second light guide layer, and the difference between the refractive index of the first light guide layer and that of the second light guide layer is not smaller than 0.03 and not larger than 0.4.

Optionally, the material of the substrate layer is one or more of PET, TAC, PEN, COP, PMMA, PC, BOPP, modified PE, PFA, PTFE, and ETFE; the material of the angle-of-view structure is one or more of an acrylic acid system UV molding resin material, a silica gel system UV molding material, a polyurethane system UV and thermal curing molding material, an epoxy resin system and the like, and the refractive index of the material of the angle-of-view structure is 1.30-2.10.

Optionally, the display device further includes a polarizer, and the polarizer is disposed on the viewing-angle optical film and disposed toward the light emitting side.

According to the display device in the technical scheme, the first light-transmitting component and the expansion angle component are arranged between the light-transmitting cover plate component and the liquid crystal panel component, so that the expansion angle component can emit emergent light rays of a positive angle to two sides, and meanwhile, the attributes such as contrast, color quasi, color cast and the like of the light rays are emitted to the side angle along with the light rays, and therefore frequency domain parameters can be enhanced under a larger observation angle, and the purpose of enhancing the display effect is achieved. In addition, the view-enlarging angle component is arranged in a mode of combining the view-enlarging angle optical film and the functional coating, and the functional coating is coated on the surface of the view-enlarging angle optical film, so that the display device carrying the view-enlarging angle component can further and remarkably eliminate reflection of a display screen in screen-extinguishing or outdoor use, the display effect can be further enhanced, and the technical problem that the display effect of the high-resolution display device is poor is solved.

Drawings

Reference numerals in the specification: a gas layer, 10; a first conductive layer, 20; a second conductive layer, 30; a substrate layer 40; a light transmissive cover plate assembly, 50; a liquid crystal panel assembly 60; a light-transmitting layer, 70; a first light transmissive component, 80; a viewing angle assembly, 90; a first light guiding layer 901; a second light guiding layer 902; a first trapezoidal section, 9011; a second trapezoidal section, 9012; a third trapezoidal section, 9013.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a display device according to the present utility model;

FIG. 2 is a schematic diagram of a display device according to another embodiment of the present utility model;

FIG. 3 is a schematic diagram of a display device according to another embodiment of the present utility model;

FIG. 4 is a schematic diagram of a display device according to another embodiment of the present utility model;

FIG. 5 is a schematic diagram of a display device according to another embodiment of the present utility model;

FIG. 6 is a schematic diagram of a display device according to another embodiment of the present utility model;

FIG. 7 is a schematic view showing the structure of an optical film for viewing angle in a display device according to the present utility model;

FIG. 8 is a schematic view of a further embodiment of a viewing angle optical film in a display device according to the present utility model;

FIG. 9 is a schematic diagram showing the detailed structure of a viewing angle optical film in a display device according to the present utility model;

fig. 10 is a schematic diagram showing a detailed structure of a further embodiment of the viewing angle optical film in the display device of the present utility model.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and if descriptions of "first", "second", etc. are provided in the embodiments of the present utility model, the descriptions of "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying that the number of indicated technical features is indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The utility model provides a display panel, which aims to solve the technical problem that a high-resolution display device is poor in display effect.

In one embodiment, as shown in fig. 1 or fig. 2, the display device includes a first light-transmitting component 80, a viewing angle component 90, a light-transmitting cover component 50, and a liquid crystal panel component 60, wherein the light-transmitting cover component 50, the liquid crystal panel component 60, and the backlight module 70 are sequentially stacked, and the display device has a light-emitting side facing a user and a backlight side opposite to the light-emitting side; the light-transmitting cover plate assembly 50 is arranged near the light-emitting side; the liquid crystal panel assembly 60 is disposed near the backlight side; the first light-transmitting component 80 and the viewing angle component 90 are disposed between the light-transmitting cover component 50 and the liquid crystal panel component 60; the viewing angle assembly 90 includes a viewing angle optical film 100 and a functional coating applied to a surface of the viewing angle optical film 100.

According to the display device in the technical scheme of the utility model, the first light-transmitting component 80 and the viewing angle component 90 are arranged between the light-transmitting cover plate component 50 and the liquid crystal panel component 60, so that the viewing angle component 90 can emit outgoing light rays of a positive viewing angle to two sides, and meanwhile, the attributes such as contrast, color quasi, color shift and the like of the light rays are all emitted to a side viewing angle along with the light rays, and therefore, the frequency domain parameters can be enhanced under a larger observation angle, and the purpose of enhancing the display effect is achieved. In addition, the view-expanding angle component 90 is set to be a mode of combining the view-expanding angle optical film 100 and the functional coating, and the functional coating is coated on the surface of the view-expanding angle optical film 100, so that the display device with the view-expanding angle component 90 can further and obviously eliminate the reflection of the display screen in the screen-extinguishing or outdoor use, thereby further enhancing the display effect and solving the technical problem of poor display effect of the high-resolution display device.

The display device at this time may be a home display device or a commercial display device, such as a conference tablet, an educational interaction integrated machine, a medical tablet, or the like. The use size varies from 5 inches to 105 inches. The applied screen comprises a VA screen, a TN screen, an IPS screen and the like.

Optionally, the material of the anti-reflection layer is SiO2 or MgF.

In actual production, the reflection-viewing layer can be deposited on one side or two sides of the photoelectric device with the angle of expansion by utilizing a vacuum roll-to-roll physical vapor deposition technology, so that the formed anti-reflection layer can remarkably eliminate the adverse effect of reflection whitening of the display screen in screen-extinguishing or outdoor use.

Optionally, referring to fig. 1, the first light-transmitting component 80 is disposed near the light-transmitting cover component 50, and the viewing angle component 90 is disposed between the first light-transmitting component 80 and the liquid crystal panel component 60; or alternatively, the first and second heat exchangers may be,

referring to fig. 2, the first light-transmitting component 80 is disposed near the liquid crystal panel component 60, and the viewing angle component 90 is disposed between the first light-transmitting component 80 and the light-transmitting cover component 50.

Optionally, referring to fig. 3, when the first light-transmitting component 80 is disposed near the liquid crystal panel component 60, the viewing angle component is disposed between the first light-transmitting component 80 and the light-transmitting cover component 50, the display device further includes a gas layer 10, and the gas layer 10 is disposed between the viewing angle component and the light-transmitting cover component 50.

Optionally, referring to fig. 4 to 6, the functional coating further includes a first conductive layer 20 and a substrate layer 40 sequentially disposed, and the first conductive layer 20 is disposed towards the light-transmitting cover plate assembly with a viewing angle optical film 100.

Through setting up first conducting layer 20 at the functional coating, can provide the hardware support for touch-control display device, abundant hardware function, in addition, set up first conducting layer 20 at the functional coating, can directly increase the interpolation that the angle of expansion subassembly 90 just can realize multiple functions between the various components of the display device that has produced, need not to change the production of other components in addition, can with less cost to and less production technology's change, realize very big mill's product and update.

In addition, the substrate layer 40 is a surface leveling hardened layer, and optionally, one or more of the materials PET, TAC, PEN, COP, PMMA, PC, BOPP, the modifications PE, PFA, PTFE and the ETFE of the surface leveling hardened layer are implemented, so that the structural stability of the viewing angle optical film 100, that is, the stability of the effect of the viewing angle assembly 90, can be ensured by providing the surface leveling hardened layer.

The material of the view-angle optical film 100 is one or more of an acrylic system UV molding resin material, a silicone system UV molding material, a polyurethane system UV and thermal curing molding material, an epoxy resin system and the like, and the refractive index of the material of the view-angle structure is 1.30-2.10.

Optionally, as shown in fig. 5 or fig. 6, the functional coating further includes a second conductive layer 30, and the second conductive layer 30 is disposed between the substrate layer 40 and the viewing angle optical film 100; or alternatively, the first and second heat exchangers may be,

the second conductive layer 30 is disposed between the viewing angle optical film 100 and the liquid crystal panel assembly 60.

By providing the second conductive layer 30, the touch sensing function of the display device can be made more sensitive.

Optionally, referring to fig. 4, the functional coating further includes a light-transmitting layer 70, and the light-transmitting layer 70 is disposed between the substrate layer 40 and the viewing angle optical film 100.

Alternatively, as shown with reference to fig. 5, the light-transmitting layer 70 is disposed between the second conductive layer 30 and the viewing angle optical film 100.

Alternatively, as shown with reference to fig. 6, the light-transmitting layer 70 is disposed between the second conductive layer 30 and the base material layer 40.

The light-transmitting layer 70 is made of an adhesive material, and is also used as an adhesive layer, through which the adhesive layer can be disposed in the viewing angle expansion assembly 90 to improve stability of enhancing display effect.

Optionally, the first light-transmitting component 80 is an adhesive layer.

Through the above arrangement, when the angle-of-field assembly 90 is directly attached to the liquid crystal panel assembly 60, the light of the liquid crystal panel assembly 60 can be directly led into the angle-of-field assembly 90 for light efficiency improvement due to the fact that the air refraction layer possibly in the middle is directly removed, so that the display effect can be better than that of the adhesive layer attached to the cover glass.

Optionally, the material of the first conductive layer 20 is one of ITO, silver alloy, gold, carbon nanotubes, and graphene.

At this time, the first conductive layer 20 may be deposited on one or both sides of the viewing angle photoelectric device by a vacuum roll-to-roll physical vapor deposition technology, the first conductive layer 20 is formed on the surface of the viewing angle optical film 100, and a circuit is formed on the surface of the first conductive layer 20 by a laser scribing method, so as to be used as a sensor layer function of a subsequent touch screen.

Alternatively, as shown in fig. 7, the viewing angle optical film 100 includes a first light guide layer 901 and a second light guide layer 902; the first light guiding layer 901 is formed on the substrate layer, and the first light guiding layer 901 has a plurality of light guiding structures extending in a strip shape and arranged at intervals; the light guide structure is a trapezoid, a multi-layer trapezoid or a special-shaped multi-layer trapezoid structure with a plane or an arc surface; the second light guiding layer 902 is formed on the first light guiding layer 901 and fills up the first light guiding layer 901, and the surface of the second light guiding layer 902 has a certain optical function structure; the refractive index of the first light guiding layer 901 is different from that of the second light guiding layer 902;

for any one of the light guide structures, each light guide structure includes a first trapezoid segment 9011 and a second trapezoid segment 9012 stacked from bottom to top, where a side surface of the first trapezoid segment is an arc surface or a plane; the side surface of the second trapezoid section is an arc-shaped surface or a plane; the side surface of the second trapezoid segment and the plane where the light-transmitting cover plate component is located are arranged at an angle, the angle is an acute angle or an obtuse angle, and the first trapezoid segment 9011 guides incident light into the second trapezoid segment 9012 and changes the light direction through the second trapezoid segment, so that the emergent angle of the light-transmitting cover plate component is increased.

It can be understood that, referring to fig. 10 and fig. 8, when the light emitted by the light source passes through the light guiding structure on the first light guiding layer 901, the light incident on the arc surface of the first trapezoid segment can be refracted towards various angles due to a certain refractive index of the first trapezoid segment 9011 of the light guiding structure, the second trapezoid segment 9012 has a refractive index, and the side surface of the second trapezoid segment 9012 is arc-shaped, and the optical fiber incident on the second trapezoid segment 9012 can exit towards a set angle to increase the exit angle of the light of the display screen, so that the light intensity, contrast, chromaticity and the like of the screen of the display device in the full angle range are enhanced, not only the visible angle is enlarged, but also the color cast is eliminated and the display frequency domain is increased.

Alternatively, referring to fig. 9, the viewing angle optical film 100 includes a first light guide layer 901 and a second light guide layer 902; the first light guiding layer 901 is formed on the substrate structural layer, and the first light guiding layer 901 has a plurality of light guiding structures extending in a strip shape and arranged at intervals; the light guide structure is a trapezoid, a multi-layer trapezoid or a special-shaped multi-layer trapezoid structure with a plane or an arc surface; the second light guiding layer 902 is formed on the first light guiding layer 901 and fills up the first light guiding layer 901, and the surface of the second light guiding layer 902 has a certain optical function structure; the refractive indexes of the first light guiding layer 901 and the second light guiding layer 902 are different, each light guiding structure comprises a first trapezoid segment 9011, a second trapezoid segment 9012 and a third trapezoid segment 9013 which are stacked from bottom to top, and the side surface of the first trapezoid segment is an arc surface or a plane; the side surface of the second trapezoid section is an arc-shaped surface or a plane; the side surface of the third trapezoid section is an arc surface or a plane; the side of the second trapezoid section and the plane of the light-transmitting cover plate component are arranged at a first angle, the side of the third trapezoid section and the plane of the light-transmitting cover plate component are arranged at a second angle, and the first angle and the second angle are different.

It can be understood that, referring to fig. 3, when the light emitted by the light source passes through the light guiding structure on the first light guiding layer 901, since the first trapezoid segment 9011 of the light guiding structure has a certain refractive index, the light incident on the arc surface of the first trapezoid segment can be refracted towards various angles, while the second trapezoid segment 9012 has a refractive index and the side surface of the second trapezoid segment 9012 is arc-shaped, the optical fiber incident on the second trapezoid segment 9012 can emit towards a set angle to increase the emitting angle of the light of the display screen, so that the light intensity, contrast ratio, chromaticity and the like of the screen of the display device in the full angle range are enhanced, not only the visible angle is enlarged, but also the color deviation is eliminated and the displayed frequency domain is increased. It should be noted that, the first angle and the second angle are set to be different, and may be flexibly changed according to the needs of the user to achieve different viewing angle effects.

The refraction of the light by the arc surface of the first trapezoid segment can reduce the light intensity, chromaticity, contrast ratio and the like of the front viewing angle of the display screen, so that the light intensity, chromaticity, contrast ratio and the like of the front viewing angle of the display screen are greatly reduced, further, the side surface of the third trapezoid segment 9013 can further improve the light of the second trapezoid segment 9012, the angle can be set according to the requirement, the enhancement of a specific angle is realized, and the excessive refraction of the second trapezoid segment 9012 is avoided.

In particular, the circular arc angle formed by the side surface of the third trapezoid segment 9013 can make the light in the angle-expanding optical film 100 change more gently along with the angle, unlike a straight line, and achieve a specific angle expansion. The chamfer formed by the side of the third trapezoidal section 9013 is then a targeted enhancement of the light at a specific angle. Therefore, in practical application, the display device can be customized according to the visual angle required by a user, light change and enhancement at various angles are realized, and customization flexibility is realized.

In one embodiment, as shown in fig. 2, the side surface of the second trapezoid segment 9012 is a concave arc surface, and the top surface is a plane surface. It can be appreciated that during the process of passing through the second trapezoid segment 9012, part of the light can be refracted out towards various angles through the side surface of the second trapezoid segment 9012, so as to diffuse the light within the full angle range. And other partial light rays can be directly emitted out through the top surface of the second trapezoid segment 9012 without refraction, so that the condition that the light intensity, chromaticity, contrast ratio and the like of a positive viewing angle are greatly weakened is effectively avoided.

Of course, the size of the gaps between the light guide structures 901 can be adjusted, so that light can be directly emitted from the gaps between the light guide structures 901, and the display effect of the display screen in a positive viewing angle is further ensured.

In another embodiment, the plurality of light guiding structures 901 further includes a concave arc surface on a side surface of the third trapezoid segment 9013, and an arc surface or a plane on a top surface, where the arc surface may be a convex arc surface or a concave arc surface. It should be noted that, the radian of the top surface is not too large when the top surface is an arc surface, and the top surface with a bit of radian can not cause too large influence on the function of the light guiding structure 901, but also bring about improvement on some performances.

For example, in one embodiment, as shown in fig. 3, the top surface of the third trapezoid segment 9013 is a convex arc surface, where the arc R of the convex arc surface is not less than 4 microns and not more than 10 microns, and specifically, R may be 4 microns, 5 microns, 6 microns, 8 microns, 10 microns, and so on. The center of the convex arc surface is located on the middle line of the bottom surface of the third trapezoid segment 9013. The display enhancement film 10 having this third trapezoidal section 9013, when applied to a display screen, reduces the light intensity decay of the display screen at the front viewing angle by less than 15%. The ratio of light intensity at angles of + -30 DEG and + -35 DEG is greater than 80% compared to the light intensity of the front view. The ratio of light intensity at angles of + -60 DEG and + -65 DEG is greater than 40% compared to the light intensity of the front view. And the contrast light intensity at angles of + -30 DEG and + -35 DEG is greater than 85% compared to the positive angle contrast light intensity. Namely, the display effect of other visual angles of the display screen is enhanced, and meanwhile, the display effect of the front view angle is ensured not to be greatly attenuated.

Optionally, the height of the light guiding structure is not less than 8 microns and not more than 20 microns;

the distance between the two side surfaces at the top of the light guide structure is not less than 5 microns and not more than 19 microns, and the distance between the two side surfaces at the bottom of the light guide structure is not less than 10 microns and not more than 35 microns.

Wherein the distance L between the two sides at the top of the light guiding structure 31 ₁ Not less than 5 microns and not greater than 19 microns, may be 5 microns, 9 microns, 15 microns, 19 microns, etc. Spacing L of two sides at bottom of light guiding structure 31 ₂ Not less than 10 microns and not more than 35 microns, such as L ₂ 10 microns, 15 microns, 20 microns, 30 microns, 35 microns, etc. The height H of the light guide structure 31 is not less than 8 microns and not more than 20 microns, and can be 8 microns,12 microns, 16 microns, 20 microns, etc.

The light guide structure 31 having this size range can make the light intensity decay of the display screen at the front view angle less than 15%. The ratio of light intensity at angles of + -30 DEG and + -35 DEG is greater than 80% compared to the light intensity of the front view. The ratio of light intensity at angles of + -60 DEG and + -65 DEG is greater than 40% compared to the light intensity of the front view. And the contrast light intensity at angles of + -30 DEG and + -35 DEG is greater than 85% compared to the positive angle contrast light intensity.

Optionally, in a cross section of the light guiding structures, a sum P of distances between each of the light guiding structures and two adjacent light guiding structures is not less than 10 micrometers and not more than 32.5 micrometers.

The light paths of each light guide structure can be influenced mutually as much as possible, and the uniformity of light is ensured.

Optionally, a distance W6 between each of the light guiding structures is not less than 2 microns and not more than 7 microns.

Alternatively, referring to fig. 5, the height H3 of the second trapezoidal section 9012 is not less than 11.5 microns and not more than 16.5 microns;

and in the cross section of the light guiding structure, the bottom edge width W5 of the second trapezoid segment 9012 is not less than 13.5 microns and not more than 18.5 microns, and the top edge width W4 of the second trapezoid segment 9012 is not less than 5 microns and not more than 10 microns.

Alternatively, referring to fig. 4, when a third trapezoidal section 9013 is provided, the height H1 of the second trapezoidal section 9012 is not less than 8 microns and not more than 19 microns, and the total height H2 of the second trapezoidal section 9012 and the third trapezoidal section 9013 is not less than 9 microns and not more than 23 microns;

and in the cross section of the light guiding structure, the width W3 of the bottom edge of the second trapezoid segment 9012 is not less than 11 microns and not more than 22.5 microns, and the width W2 of the bottom edge of the third trapezoid segment 9013 is not less than 2.5 microns and not more than 8.5 microns; the top edge width W1 of the third trapezoidal section 9013 is not less than 2.5 microns and not greater than 8.5 microns of the second trapezoidal section 9012 third trapezoidal section 9013, the second trapezoidal section 9012 third trapezoidal section 9013.

The light guide structure 31 having the above size range can make the light intensity decay of the display screen at the front view angle less than 15%. The ratio of light intensity at angles of + -30 DEG and + -35 DEG is greater than 80% compared to the light intensity of the front view. The ratio of light intensity at angles of + -60 DEG and + -65 DEG is greater than 40% compared to the light intensity of the front view. And the contrast light intensity at angles of + -30 DEG and + -35 DEG is greater than 85% compared to the positive angle contrast light intensity. And then the viewer can obtain more vivid and bright looking and feel experience in the full-angle range of the display screen.

Alternatively, the refractive index of the first light guide layer 901 and the second light guide layer 902 is not less than 1.35 and not more than 1.90; and/or the number of the groups of groups,

the refractive index of the first light guiding layer 901 is greater than the refractive index of the second light guiding layer 902, and the difference between the refractive index of the first light guiding layer 901 and the refractive index of the second light guiding layer 902 is not less than 0.05 and not more than 0.4. In an alternative, the first light guide layer 901 and the second light guide layer 902 may be formed of an ultraviolet curable resin.

Optionally, the viewing angle optical film 100 includes a substrate and a viewing angle structure, where the substrate is one or more of PET (Polyethylene terephthalate ), TAC (Triacetyl Cellulose, triacetate fiber film), PEN (Polyethylene naphthalate two formic acid glycol ester, polyethylene naphthalate), COP (Coefficient Of Performance), PMMA (polymethyl methacrylate ), PC (Polycarbonate), BOPP, modified PE, PFA, PTFE, and ETFE; the material of the expansion angle structure is one or more of an acrylic acid system UV molding resin material, a silica gel system UV molding material, a polyurethane system UV and thermal curing molding material, an epoxy resin system and the like, and the refractive index of the material of the expansion angle structure is 1.40-1.65.

Optionally, the display device further includes a polarizer disposed on the viewing-angle-enlarging optical film 100 and disposed toward the light-emitting side.

By the above arrangement, a liquid crystal device with a special optical function can be produced.

In an alternative embodiment, one or both sides of the viewing angle expansion photoelectric device are provided with adhesive, and the combination with the display device is full lamination, zero lamination or frame lamination. The film is stuck on the surface of an OpenCell, transparent UV curing glue is coated on the surface and cover plate glass quality inspection, and the transparent UV curing glue is cured, so that a full-lamination display device is realized.

In an alternative embodiment, the film is attached to the surface of the OpenCell and attached to the cover glass to achieve a zero-attach or frame-attach display device. The film is adhered to the lower surface of the cover plate glass and is adhered to other devices to realize a full-adhering, zero-adhering or frame-adhering display device. The film is adhered to the upper surface of the cover plate glass and is adhered to other display devices, so that the full-adhesion, zero-adhesion or frame-adhesion display devices are realized.

The structure and the functional layer are manufactured on the surface of the polaroid to form the polaroid with the function of enlarging the visual angle and photoelectricity, and are attached to the surface of the liquid crystal box,

the foregoing is only an optional embodiment of the present utility model, and is not limited to the scope of the patent application, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the patent protection of the present utility model.

Claims (10)

1. A display device, characterized in that the display device comprises a first light-transmitting component, a viewing angle component, a light-transmitting cover plate component and a liquid crystal panel component which are sequentially stacked, wherein the display device is provided with a light-emitting side facing a user and a backlight side opposite to the light-emitting side;

the light-transmitting cover plate component is arranged close to the light-emitting side; the liquid crystal panel assembly is arranged close to the backlight side;

the first light-transmitting component and the viewing angle expansion component are arranged between the light-transmitting cover plate component and the liquid crystal panel component;

the angle of view subassembly includes angle of view optical film and functional coating, the functional coating is applied to angle of view optical film surface.

2. The display device of claim 1, wherein the first light transmissive component is disposed proximate to the light transmissive cover plate component, and the viewing angle component is disposed between the first light transmissive component and the liquid crystal panel component; or alternatively, the first and second heat exchangers may be,

the first light-transmitting component is arranged close to the liquid crystal panel component, and the expansion angle component is arranged between the first light-transmitting component and the light-transmitting cover plate component.

3. The display device of claim 2, wherein when the first light transmissive assembly is disposed proximate to the liquid crystal panel assembly, the viewing angle assembly is disposed between the first light transmissive assembly and the light transmissive cover plate assembly, the display device further comprises a gas layer disposed between the viewing angle assembly and the light transmissive cover plate assembly.

4. The display device of claim 1, wherein the functional coating further comprises a first conductive layer and a substrate layer disposed in sequence, the first conductive layer disposed toward the light transmissive cover plate assembly.

5. The display device of claim 4, wherein the functional coating further comprises a second conductive layer disposed between the substrate layer and the viewing angle optical film; or alternatively, the first and second heat exchangers may be,

the second conductive layer is arranged between the expansion angle optical film and the liquid crystal panel component.

6. The display device of claim 5, wherein the functional coating further comprises a light-transmitting layer disposed between the substrate layer and the viewing angle optical film; or alternatively, the first and second heat exchangers may be,

the light-transmitting layer is arranged between the second conductive layer and the expansion angle optical film; or alternatively, the first and second heat exchangers may be,

the light-transmitting layer is arranged between the second conductive layer and the substrate layer.

7. The display device of claim 1 or 2, wherein the viewing angle optical film comprises a first light guide layer and a second light guide layer;

the first light guide layer is provided with a plurality of light guide structures which extend in a strip shape and are distributed at intervals; the light guide structure is a trapezoid, a multi-layer trapezoid or a special-shaped multi-layer trapezoid structure with a plane or an arc surface;

the second light guide layer is formed on the first light guide layer and fills up the first light guide layer, and the surface of the second light guide layer is provided with a certain optical function structure; the refractive indexes of the first light guide layer and the second light guide layer are different;

each light guide structure comprises a first trapezoid section and a second trapezoid section which are stacked from bottom to top, and the side surface of the first trapezoid section is an arc-shaped surface or a plane; the side surface of the second trapezoid section is an arc-shaped surface or a plane; the second trapezoid section and the plane where the light-transmitting cover plate component is located are arranged at an acute angle or an obtuse angle;

for any light guide structure, the first trapezoid segment introduces incident light into the second trapezoid segment and changes the direction of light rays through the second trapezoid segment so as to increase the emergent angle of the light-transmitting cover plate component; or alternatively, the first and second heat exchangers may be,

each light guide structure comprises a first trapezoid section, a second trapezoid section and a third trapezoid section which are stacked from bottom to top, wherein the side surface of the first trapezoid section is an arc-shaped surface or a plane; the side surface of the second trapezoid section is an arc-shaped surface or a plane; the side surface of the third trapezoid section is an arc surface or a plane; the side of the second trapezoid section and the plane of the light-transmitting cover plate component are arranged at a first angle, the side of the third trapezoid section and the plane of the light-transmitting cover plate component are arranged at a second angle, and the first angle and the second angle are different.

8. The display device of claim 7, wherein the height of the second trapezoid segment is not less than 11.5 microns and not more than 16.5 microns;

and on the cross section of the light guide structure, the width of the bottom edge of the second trapezoid section is not less than 13.5 microns and not more than 18.5 microns, and the width of the top edge of the second trapezoid section is not less than 5 microns and not more than 10 microns;

or alternatively, the first and second heat exchangers may be,

when a third trapezoid segment is provided, the height of the second trapezoid segment is not less than 8 microns and not more than 19 microns, and the total height of the second trapezoid segment and the third trapezoid segment is not less than 9 microns and not more than 23 microns;

and on the cross section of the light guide structure, the width of the bottom edge of the second trapezoid section is not less than 11 microns and not more than 22.5 microns, and the width of the bottom edge of the third trapezoid section is not less than 2.5 microns and not more than 8.5 microns; the third trapezoidal section has a top edge width of not less than 2.5 microns and not greater than 8.5 microns.

9. The display device according to claim 7, wherein refractive indexes of the first light guide layer and the second light guide layer are not less than 1.30 and not more than 2.10; and/or the number of the groups of groups,

the refractive index of the first light guide layer is larger than that of the second light guide layer, and the difference between the refractive index of the first light guide layer and that of the second light guide layer is not smaller than 0.03 and not larger than 0.4.

10. The display device of claim 1, further comprising a polarizer disposed on the viewing-angle-expanding optical film and disposed toward the light-exiting side.