CN212010175U

CN212010175U - Optical cover plate and display device

Info

Publication number: CN212010175U
Application number: CN202020453774.0U
Authority: CN
Inventors: 温胜山
Original assignee: Shenzhen Royole Display Technology Co ltd
Current assignee: Shenzhen Royole Display Technology Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-24
Anticipated expiration: 2030-03-31

Abstract

The application provides an optical cover plate and a display device. The optical cover plate includes: a cover layer; a support layer disposed opposite the cover layer; and the light control film layer is arranged between the supporting layer and the covering layer and comprises a plurality of light transmission parts and a light shielding part arranged between two adjacent light transmission parts, the light transmission parts are used for enabling light between the supporting layer and the covering layer to be conducted, and the light shielding part is used for blocking light conduction between the supporting layer and the covering layer. The optical cover plate and the display device provided by the embodiment of the application can reduce the refraction angle of light rays, so that the visual area of the display device is kept within a certain angle range.

Description

Optical cover plate and display device

Technical Field

The application relates to the technical field of display, in particular to an optical cover plate and a display device.

Background

The display effect can be improved by displaying information through the display screen, and the user can conveniently check the information. Therefore, the application range of the display screen is wider and wider. However, in some application scenarios, too large a range of angles of refraction of light of the display screen may cause confusion to the user. For example, when a vehicle is driven at night, display screen light applied to a vehicle system may form a reflection on a front windshield or a side window of the vehicle, which may affect a driver's view of the environment outside the vehicle. Or when the user views the information through the electronic equipment provided with the display screen, the content displayed on the display screen is easy to be peeped by people nearby. Therefore, how to keep the visible area of the display screen within a certain angle range on the premise of meeting the thickness requirement of the display screen becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The application provides an optical cover plate capable of reducing light refraction angle and a display device.

In one aspect, an embodiment of the present application provides an optical cover plate, which includes: a cover layer; a support layer disposed opposite the cover layer; and the light control film layer is arranged between the supporting layer and the covering layer and comprises a plurality of light transmission parts and a light shielding part arranged between two adjacent light transmission parts, the light transmission parts are used for enabling light between the supporting layer and the covering layer to be conducted, and the light shielding part is used for blocking light conduction between the supporting layer and the covering layer.

On the other hand, the embodiment of the application also provides a display device which is characterized by comprising the optical cover plate.

By integrating the light control film layer between the cover layer and the support layer of the optical cover plate, an increase in thickness of the optical cover plate can be avoided. When light passes through the optical cover plate, the light of the shading part is shaded, when the light passes through the light transmission part, the light is vertically injected into the light and is emitted out with the light with a small angle between the part and the covering layer or the supporting layer, and the light with a large angle between the part and the covering layer or the supporting layer is reflected due to the blocking of the adjacent shading part, so that the angle range of the light after passing through the optical cover plate can be reduced, and the light and the thinness of the optical cover plate are ensured, and meanwhile, the light is in a certain angle range after passing through the optical cover plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a display panel and an optical cover plate according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a display panel and an optical cover plate according to a second embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of an optical cover plate according to an embodiment of the present application.

Fig. 5 is a schematic structural view illustrating the optical cover plate shown in fig. 4 disposed on a display panel according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of an optical cover plate according to a second embodiment of the present application.

Fig. 7 is a schematic structural diagram of an optical cover plate according to a third embodiment of the present application.

Fig. 8 is a schematic structural diagram of an optical cover plate according to a fourth embodiment of the present application.

Fig. 9 is a schematic structural diagram of an optical cover plate according to a fifth embodiment of the present application.

Fig. 10 is a schematic structural diagram of an optical cover plate according to a sixth embodiment of the present application.

Fig. 11 is a schematic structural diagram of an optical cover plate according to a seventh embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1, a display device 100 provided in the embodiment of the present application may be a display screen or an electronic device provided with a display screen.

The Display screen may be a Cathode Ray Tube (CRT) Display screen, a Liquid Crystal Display (LCD) screen, a Light Emitting Diode (LED) screen, a three-dimensional Display screen (3D), an organic Light Emitting Display (oled) screen, a flexible Display screen, or the like.

The electronic device may be a Mobile phone, a tablet Computer, a desktop Computer, a laptop Computer, an electronic reader, a handheld Computer, an electronic display screen, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) \ Virtual Reality (VR) device, a media player, a watch, a necklace, glasses, an earphone, and other devices having a display screen.

Of course, in other embodiments, the display device 100 may also be other apparatuses provided with a display screen. Such as: the vehicle is provided with a central control display screen, and the advertisement board is provided with a display screen indoors or outdoors.

In the embodiment of the present application, the display device 100 is taken as an example for explanation, and details are not repeated in the following. In the embodiment of the present application, the length direction of the display device 100 is defined as the X-axis direction. The width direction of the display device 100 is defined as the Y-axis direction. The thickness direction of the display device 100 is defined as the Z-axis direction. Wherein, the direction indicated by the arrow is the positive direction.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a display device 100 according to an embodiment of the present disclosure. The display device 100 includes a display panel 20 and an optical cover 10 disposed on a light-emitting side of the display panel 20. The display panel 20 and the optical cover 10 are bendable, so as to realize the characteristic of the display apparatus 100 that is bendable and deformable.

In one embodiment, as shown in fig. 2, the display panel 20 includes a first glue layer 201, a touch layer 202, a second glue layer 203, and a light emitting substrate 204 sequentially stacked. The first adhesive layer 201, the touch layer 202, the second adhesive layer 203 and the light emitting substrate 204 are flexible.

The first glue layer 201 is used to connect the optical cover plate 10 and the touch layer 202. The first Adhesive layer 201 may be an Optical Clear Adhesive (OCA), a Pressure Sensitive Adhesive (PSA), a photosensitive Adhesive (UV), or other Adhesive materials.

The touch layer 202 may be a resistive, capacitive, infrared, ultrasonic, or the like touch screen. The touch layer 202 is provided with a touch detection member. The touch detection part can be a metal elastic sheet, a conductive object, an infrared transmitting tube, an infrared receiving tube, an ultrasonic transducer, a touch sensor and the like.

The second glue layer 203 is used for connecting the touch layer 202 and the light emitting substrate 204. The second adhesive layer 203 may be an OCA, PSA, UV, or the like adhesive material.

The light emitting substrate 204 is used to emit light. Specifically, the light-emitting substrate 204 includes a flexible substrate, a driving substrate and a display module. The flexible substrate may be a plastic substrate, a metal aluminum foil, thin glass, or the like. The driving substrate includes a hydrogenated amorphous silicon Thin Film Transistor (TFT), a polysilicon TFT, an organic TFT, an oxide TFT, and the like. The display module can be OLED, LCD, electronic paper, etc.

In this embodiment, the display device 100 includes an optical cover plate 10, a first adhesive layer 201, a touch layer 202, a second adhesive layer 203, and a light-emitting substrate 204 sequentially arranged along the Z-axis direction. The light emitted from the light-emitting substrate 204 sequentially passes through the second adhesive layer 203, the touch layer 202, the first adhesive layer 201, and the optical cover plate 10.

In another embodiment, as shown in fig. 3, the display device 100 further includes a polarizer 205 disposed between the second adhesive layer 203 and the light-emitting substrate 204. The polarizer 205 is used to polarize the light emitted from the light-emitting substrate 204. In this embodiment, the light polarized by the polarizer 205 sequentially passes through the touch layer 202, the first adhesive layer 201, and the optical cover 10 to be emitted.

As shown in fig. 4, fig. 4 is a schematic structural diagram of an optical cover plate 10 according to an embodiment of the present application. The optical cover sheet 10 includes a cover layer 101, a support layer 102, and a light management film layer 103. The cover layer 101, the support layer 102, and the light control film layer 103 are flexible.

Specifically, as shown in fig. 5, the cover layer 101 is provided on the display panel 20 in the Z-axis direction. In one embodiment, the cover layer 101 serves as a cover substrate of the display panel 20. The cover layer 101 may be a base material such as Polymethyl Methacrylate (PMMA), Polycarbonate (PC), polyester resin (PET), or transparent Polyimide film (CPI). The cover layer 101 has a high light transmittance so that light can be emitted through the cover layer 101.

The support layer 102 is disposed opposite to the cover layer 101. Specifically, the support layer 102 is disposed between the cover layer 101 and the display panel 20 in the Z-axis direction. In one embodiment, the supporting layer 102 may also serve as a cover substrate of the display panel 20. The support layer 102 may be a substrate such as PMMA, PC, PET, CPI, etc. The support layer 102 and the cover layer 101 may be made of the same material or different materials. In another embodiment, the supporting layer 102 may also be a functional film layer having a supporting function, such as the polarizer 205.

The light control film layer 103 is disposed between the support layer 102 and the cover layer 101. Specifically, the cover layer 101, the light control film layer 103, and the support layer 102 are disposed in order along the Z-axis direction.

The light control film layer 103 includes a plurality of light-transmitting portions 131 and a light-shielding portion 132 provided between two adjacent light-transmitting portions 131. The light-transmitting portion 131 and the light-shielding portion 132 may be provided adjacent to each other in the longitudinal direction (X axis) of the display device 100, or may be provided adjacent to each other in the width direction (Y axis) of the display device 100. Here, the adjacent arrangement means that when the light-transmitting portion 131 and the light-shielding portion 132 are arranged adjacent to each other in the X-axis direction, an end surface of the light-transmitting portion 131 facing the YZ plane overlaps an end surface of the light-shielding portion 132 facing the YZ plane. When the light-transmitting portion 131 and the light-shielding portion 132 are provided adjacent to each other in the Y axis direction, an end surface of the light-transmitting portion 131 facing the XZ plane overlaps an end surface of the light-shielding portion 132 facing the XZ plane.

In one embodiment, referring to fig. 4 and 5, the light-transmitting portion 131 and the light-shielding portion 132 are disposed adjacent to each other along the X-axis direction. The cross-sectional shapes of light-transmitting portion 131 and light-shielding portion 132 in the XZ plane are isosceles trapezoids. The translucent portion 131 includes an upper bottom surface 131a and a lower bottom surface 131 b. The upper bottom surface 131a and the lower bottom surface 131b are arranged in order along the Z-axis direction and are disposed opposite to each other. The upper bottom surface 131a and the lower bottom surface 131b of the light transmitting portion 131 are end surfaces of the light transmitting portion 131 facing the XY plane. Light-transmitting portion 131 further includes a front end surface 131c and a rear end surface (not shown). The front end surface 131c and the rear end surface are arranged in order along the Y axis in the forward direction and are disposed opposite to each other. The front end surface 131c and the rear end surface of the light transmitting portion 131 are end surfaces of the light transmitting portion 131 facing the XZ plane. The translucent portion 131 further includes a left side surface 131e and a right side surface 131 f. The left side 131e and the right side 131f are arranged in order along the X-axis in the forward direction and are opposite to each other. The left side surface 131e and the right side surface 131f of the light transmission member 131 are end surfaces of the light transmission member 131 facing the YZ plane. It is understood that the transparent portion 131 and the light shielding portion 132 are disposed adjacent to each other in the X-axis direction, and that the left side 131e of the transparent portion 131 overlaps the side of the light shielding portion 132 located in the direction opposite to the X-axis direction of the transparent portion 131. The right side surface 131f of the transparent portion 131 overlaps the side surface of the light shielding portion 132 located in the transparent portion 131 facing the X-axis direction. In the following embodiments, the light-transmitting portion 131 and the light-shielding portion 132 are disposed adjacent to each other along the X-axis direction for explanation, and details are not described herein.

The number and shape of the light-transmitting portions 131 and the light-shielding portions 132 may be the same or different. In the embodiment of the present application, the number and shape of the light transmitting portions 131 and the light shielding portions 132 are not limited. For example, the cross-sectional shape of the light-transmitting portion 131 toward the XZ plane may be any one or more of a rectangle, a rhombus, a triangle, a pentagon, a parallelogram, a hexagon, a rectangle with missing corners, and the like. The plurality of light-transmitting portions 131 may be identical in shape or different in shape. The cross-sectional shape of the light-shielding portion 132 in the XZ plane may be the same as or different from that of the light-transmitting portion 131. The plurality of light shielding portions 132 may have the same shape or different shapes.

The light-transmitting portion 131 is used to conduct light between the support layer 102 and the cover layer 101. In other words, the light-transmitting portion 131 is made of a material having high light-transmitting property. The material of the transparent portion 131 may be the same as the material of the cover layer 101 and the support layer 102.

The light shielding portions 132 serve to block light transmission between the support layer 102 and the cover layer 101. The light shielding portion 132 is made of a material having low light transmittance or no light transmittance. In one embodiment, the light-shielding portion 132 may be made of a polyethylene resin, a polyurethane resin, an epoxy resin, or the like having low light transmittance.

Referring to fig. 4 and 5, after the light emitted from the light-emitting substrate 204 passes through the second adhesive layer 203, the touch layer 202, the first adhesive layer 201, and the support layer 102 in sequence along a straight line, the light enters the optical cover 10. The light entering the optical cover 10 is roughly divided into two parts. Wherein a portion of the light rays is located substantially between the straight line a and the straight line B in fig. 4. The part of the light may pass through the light-transmitting portion 131. The other part of the light ray is outside the straight lines A and B in FIG. 4. As shown by the dotted line in fig. 4, the part of the light enters the surface of the light shielding portion 132 and is reflected or absorbed by the light shielding portion 132. It is understood that, in the embodiment of the present application, the area surrounded by the straight line a and the straight line B is determined by the shape and size of the light-transmitting portion 131 and the light-shielding portion 132.

In other words, the angle θ of the light emitted through the optical cover 10 can be controlled by the different shapes of the light transmitting portions 131 and the light shielding portions 132 and the ratio of the widths to the heights of the light transmitting portions 131 and the light shielding portions 132, so that the visible area of the display device 100 can be maintained within a certain angle range. The angle θ of the light emitted from the optical cover 10 is not limited in the embodiments of the present application. The angle θ of the light emitted from the optical cover plate 10 may be in the range of 0 ° to 180 °.

By integrating the light control film layer 103 between the cover layer 101 and the support layer 102 of the optical cover plate 10, an increase in the thickness of the optical cover plate 10 can be avoided. When light passes through the optical cover plate 10, the light of the light shielding parts 132 is shielded, when the light passes through the light transmitting parts 131, the light vertically enters and is emitted out with a small angle between part of the light and the cover layer 101 or the support layer 102, and part of the light with a large angle between the light and the cover layer 101 or the support layer 102 is reflected due to the blocking of the adjacent light shielding parts 132, so that the angle range of the light after passing through the optical cover plate 10 can be reduced, and the light and the thinness of the optical cover plate 10 are ensured, and meanwhile, the light is in a certain angle range after passing through the optical cover plate 10.

In one embodiment, the exit angle of the light emitted through the light-transmitting portion 131 ranges from 30 ° to 120 °.

In one embodiment, as shown in fig. 6, the cross-sectional shape of the light-transmitting portion 131 in the XZ plane is a parallelogram. The cross section of the light shielding portion 132 in the XZ plane is an isosceles triangle. In this case, the ratio of the width to the height of the light-shielding portion 132 is selected to be in the range of 0.54 to 3.46, so that the emission angle θ of the light emitted through the light-transmitting portion 131 is in the range of 30 ° to 120 °. For example, when the angle θ of the light emitted through the optical cover 10 is about 60 °, the ratio of the width to the height of the light-transmitting portion 131 may be about 1.16. Wherein the width of the light shielding portion 132 is shown as m in fig. 6. The height of the light shielding portion 132 is shown as n in fig. 6.

In another embodiment, as shown in fig. 7, light-transmitting portion 131 has a rectangular cross-sectional shape in the XZ plane. The cross section of the light-shielding portion 132 in the XZ plane is a rectangle having the same size as the light-transmitting portion 131. In this case, the ratio of the width to the height of the light-transmitting portion 131 is selected to be in the range of 0.27 to 1.73, so that the exit angle θ of the light emitted through the light-transmitting portion 131 is in the range of 30 ° to 120 °. For example, when the angle θ of the light emitted through the optical cover 10 is about 30 °, the ratio of the width to the height of the light-transmitting portion 131 may be about 0.27. When the angle θ of the light emitted through the optical cover 10 is about 120 °, the ratio of the width to the height of the light-transmitting portion 131 may be about 1.73. The width of the light-transmitting portion 131 is shown as p in fig. 7. The height of the light-transmitting portion 131 is shown as q in fig. 7.

The emergent angle range of the light rays emitted by the light-transmitting part 131 is 30-120 degrees, so that the light rays emitted by the light-transmitting part 131 are prevented from being refracted on objects such as glass to form reflection images, and inconvenience is brought to users.

The following examples illustrate the structure of the cover layer 101 and the support layer 102. It is understood that the structure of the cover layer 101 and the support layer 102 in the present application includes, but is not limited to, the following embodiments.

In one embodiment, as shown in fig. 8, the cover layer 101 is a light-transmissive cover plate. The cover layer 101 includes a first transparent substrate 110 and at least one coating layer 112 disposed on the first transparent substrate 110.

The first transparent substrate 110 is a cover substrate. The first transparent substrate 110 may be made of organic glass PMMA, polycarbonate PC, polyester resin, PET, a transparent polyimide film CPI, or the like.

The coating 112 is disposed on the surface of the first transparent substrate 110 facing the positive Z-axis direction. The coating layer 112 may be an Anti-Fingerprint (AF) coating layer, an Anti-Reflection (AR) coating layer, an Anti-Glare (AG) coating layer, or a coating layer for increasing the hardness of the first light-transmitting substrate 110.

As shown in fig. 8, the support layer 102 is a second transparent substrate 102 a. The material of the second transparent substrate 102a may be PMMA, PC, PET, CPI, or the like.

In this embodiment, the optical cover plate 10 includes, in order along the Z-axis, a coating layer 112, a first transparent substrate 110, a light control film layer 103, and a second transparent substrate 102 a. When passing through the optical cover 10, the light passes through the second transparent substrate 102a, the light control film layer 103, the first transparent substrate 110 and the coating layer 112 in sequence.

The light control film layer 103 may be formed between the first transparent substrate 110 and the second transparent substrate 102a by stamping, attaching, coating, etching, and the like.

By integrating the light control film layer 103 between the first transparent substrate 110 and the second transparent substrate 102a, the surface coating 112 on the first transparent substrate 110 facing the Z-axis forward direction realizes the surface characteristics of the cover plate. The light control film layer 103 is formed between the first transparent substrate 110 and the second transparent substrate 102a, so that the functions of reducing the emergent angle of light rays and preventing glare are realized. In other words, the optical cover 10 provided in this embodiment has both the characteristics of a cover and the optical characteristics of blocking part of light from passing through.

In one embodiment, the first transparent substrate 110, the light control film layer 103, and the second transparent substrate 102a are integrally connected to each other. Specifically, the first transparent substrate 110 and the second transparent substrate 102a are different portions of the first cover plate. The light control film layer 103 is formed inside the first cover plate by a photolithography technique. In other words, the light control film layer 103 separates the first cover plate into the first transparent substrate 110 facing the Z-axis forward direction and the second transparent substrate 102a facing the Z-axis reverse direction. The first cover plate may be made of glass, plastic, or the like.

In another embodiment, as shown in fig. 9, the cover layer 101 has the same structure as the cover layer 101 of the previous embodiment. The cover layer 101 includes a first transparent substrate 110 and at least one coating layer 112 disposed on the first transparent substrate 110. Support layer 102 is polarizer 205. The light control film layer 103 is located between the first transparent substrate 110 and the polarizer 205. The polarizer 205 may be a transmissive polarizer, a reflective polarizer, a transflective polarizer, a compensation polarizer, etc.

In this embodiment, the optical cover 10 includes, in order along the Z-axis, a coating 112, a first transparent substrate 110, a light control film layer 103, and a polarizer 205. The light passes through the optical cover 10, and the light polarized by the polarizer 205 passes through the light control film layer 103, the first transparent substrate 110 and the coating 112 in sequence.

By integrating the light control film layer 103 between the first transparent substrate 110 and the polarizer 205, the surface coating 112 on the first transparent substrate 110 facing the positive Z-axis direction realizes the surface characteristics of the cover plate. The light control film layer 103 is formed between the first transparent substrate 110 and the polarizer 205, so as to reduce the emergent angle of light and achieve the anti-glare function. In other words, the optical cover 10 provided in this embodiment has the characteristics of a cover, the optical characteristics of blocking part of light, and the polarization characteristics of the polarizer 205.

In one embodiment, as shown in FIG. 10, the polarizer 205 includes a first supporting film 251, a polarizing film 252, and a compensation film 253, which are sequentially stacked.

Specifically, the first supporting film 251 supports the light control film layer 103, and the first supporting film 251 is a protecting film of the polarizing film 252 in the polarizer 205. For example, the first support film 251 may be a triacetate fiber film (Tri Acetyl Cellulose, TAC). In other embodiments, the first support film 251 may also be transparent plastic or the like.

The polarizing film 252 serves to polarize light. The polarizing film 252 may be a metal polarizing film in which a metal salt such as gold, silver, or iron is adsorbed on a polymer film. The polarizing film 252 may also be an iodine-based polarizing film including a polyvinyl alcohol (PVA) film and iodine molecules. The polarizing film 252 may be a dyed polarizing film in which an organic dye having dichroism is adsorbed on PVA. The polarizing film 252 may also be a polyethylene polarizing film, so that the PVA molecules contain a certain amount of ethylene structures, thereby having polarizing properties.

The compensation film 253 serves to compensate for the intensity of the transmitted light or increase the transmission angle of the light. Specifically, the compensation film 253 may be a phase difference film, a color difference compensation film, a viewing angle enlarging film, or the like that changes a phase.

In this embodiment, the optical cover plate 10 includes, in order along the Z-axis, a coating layer 112, a first transparent substrate 110, a light control film layer 103, a first support film 251, a polarizing film 252, and a compensation film 253. The light is sequentially emitted along the compensation film 253, the polarization film 252, the first support film 251, the light control film layer 103, the first transparent substrate 110 and the coating layer 112.

The optical cover 10 may be formed by coating 112 on the surface of the first transparent substrate 110 facing the Z-axis direction to form a light control film and a polarizer 205. In other words, the light control film layer 103, the first support film 251, the polarizing film 252, and the compensation film 253 are formed by coating in this order on the surface of the first transparent substrate 110 facing the Z-axis direction, using the first transparent substrate 110 as a base.

The light control film and the polarizer 205 formed on the first transparent substrate 110 by the coating 112 technology can reduce the thickness of the optical cover 10, so that the flexible display screen is thinner and lighter.

In another embodiment, as shown in FIG. 11, the polarizer 205 further includes a second supporting film 254, a first adhesive film 255, and a second adhesive film 256.

The second support film 254 is disposed between the polarizing film 252 and the compensation film 253. Specifically, the second support film 254 is located on the side of the polarizing film 252 facing away from the first support film 251. That is, the surface of the polarizing film 252 facing the Z-axis forward direction has a first support film 251, the surface of the polarizing film 252 facing the Z-axis reverse direction has a second support film 254, and the first support film 251 and the second support film 254 protect the polarizing film 252 on opposite sides of the polarizing film 252 in the Z-axis direction. Wherein the second support film 254 may be TAC.

The first attachment film 255 is positioned between the second support film 254 and the compensation film 253. The first attaching film 255 is used to connect the second supporting film 254 and the compensation film 253. The first adhesive film 255 may be PSA.

The second attachment film 256 is located on a side of the compensation film 253 facing away from the first support film 251. The second attachment film 256 serves to protect the compensation film 253. In one embodiment, the second adhesive film 256 is used to connect the compensation film 253 and the touch layer 202 (see fig. 5). The second conformable film 256 may be a PSA.

In this embodiment, the optical cover 10 includes, in order along the Z-axis direction, a coating layer 112, a first transparent substrate 110, a light control film layer 103, a first supporting film 251, a polarizing film 252, a second supporting film 254, a first adhesive film 255, a compensation film 253, and a second adhesive film 256. The light rays sequentially exit along the second adhesive film 256, the compensation film 253, the first adhesive film 255, the second support film 254, the polarizing film 252, the first support film 251, the light control film layer 103, the first transparent substrate 110 and the coating layer 112.

The light management film layer 103 may be formed after the polarizer 205 is prepared. A light management film layer 103 is formed on the surface of the first support layer 102 of the polarizer 205. Techniques for forming the light control film layer 103 on the polarizer 205 include, but are not limited to, stamping, attaching, and coating.

In the embodiment of forming the light control film layer 103 on the polarizer 205, the polarizer 205 may be formed without limitation and may be formed by various processes, so that the processing efficiency of the optical cover plate 10 may be improved and the processing time may be reduced.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. An optical cover sheet, comprising:

a cover layer;

a support layer disposed opposite the cover layer; and

the light control film layer is arranged between the supporting layer and the covering layer and comprises a plurality of light transmission parts and light shielding parts arranged between two adjacent light transmission parts, the light transmission parts are used for conducting light between the supporting layer and the covering layer, and the light shielding parts are used for blocking light conduction between the supporting layer and the covering layer.

2. The optical cover plate of claim 1, wherein the exit angle of the light rays exiting through the light-transmitting portion is in a range of 30 ° to 120 °.

3. The optical cover sheet of claim 1, wherein the cover layer is a light transmissive cover sheet, the cover layer comprises a first light transmissive substrate and at least one coating disposed on the first light transmissive substrate for fingerprint trace prevention, ambient light interference prevention, or antireflection, the light transmissive portion and the light blocking portion being disposed between the first light transmissive substrate and the support layer.

4. The optical cover sheet of claim 3 wherein the support layer comprises a second optically transparent substrate, the optical control film layer is formed on the second optically transparent substrate by a photo-etching technique, and the first optically transparent substrate, the optical control film layer and the second optically transparent substrate are integrally interconnected.

5. The optical cover sheet of claim 3, wherein the support layer comprises a polarizer supported on a side of the light management film layer facing away from the first transparent substrate.

6. The optical cover sheet according to claim 5, wherein the polarizer comprises a first supporting film, a polarizing film and a compensation film, which are sequentially stacked, the first supporting film supporting the light control film layer, the polarizing film being configured to polarize light, and the compensation film being configured to compensate for the intensity of transmitted light or increase the transmission angle of light.

7. The optical cover sheet according to claim 6, wherein the polarizer further comprises a second supporting film, a first laminating film and a second laminating film, the second supporting film and the first laminating film are sequentially stacked between the polarizing film and the compensation film, the second supporting film is used for protecting the side of the polarizing film away from the first supporting film, the first laminating film is used for connecting the second supporting film and the compensation film, and the second laminating film is located on the side of the compensation film away from the first supporting film.

8. The optical cover of claim 1, wherein the optical cover is bendable to cover a flexible display device.

9. A display device, comprising a display panel and the optical cover plate according to any one of claims 1 to 8, wherein the optical cover plate is disposed on the light-emitting side of the display panel.

10. The display device according to claim 9, wherein the display panel includes a first adhesive layer, a touch layer, a second adhesive layer, and a light-emitting substrate, which are stacked in sequence, the first adhesive layer is used to connect the optical cover and the touch layer, the touch layer is provided with a touch detection component, the second adhesive layer is used to connect the touch layer and the light-emitting substrate, the light-emitting substrate is used to emit light, and the light is emitted through the touch layer, the support layer, the light-transmitting portion, and the cover layer.