TWI534506B - Display device - Google Patents

Description

Display device

The present invention relates to the field of electronic technology, and in particular, to a display device.

With the rapid advancement of display device manufacturing technology, display devices can be applied to notebook computers, personal digital assistants, digital cameras, camcorders, mobile phones, and smart phones in addition to large-sized displays such as televisions and computer monitors. Smaller portable electronic products such as mobile phones and tablet computers.

Generally, the display device includes a cover plate, an outer frame and a display module. The cover plate is disposed above the display module, and the outer frame is wrapped around the cover plate and the display module to protect and fix the cover plate and the display module. The role. The display module usually includes a polarizer and other optical components, and the polarizer is disposed on a side of the display module near the cover. Although the polarizer has a high light transmittance, it is difficult to achieve a light transmittance of 100%, so that the reflected light generated when the edge is exposed to light is still easily perceived by the user, especially in the outer frame or other opaque components of the display device. The contrast is more obvious, which in turn affects the visual effect of the display device.

Embodiments of the present invention provide a display device that can improve the visibility of the edge of the polarizer and improve the visual effect of the display device.

Embodiments of the present invention provide a display device including a polarizer and a shading element. The polarizer has an upper surface, and the light shielding element is disposed above the polarizer and shields the upper side of the polarizer At least one edge of the surface, the light shielding member has a lower surface disposed opposite the upper surface of the polarizer, the lower surface having an inner edge, the inner edge having a line with the edge of the polarizer, the edge of the polarizer The angle between the refracted ray refracted into the air along the line direction and the horizontal direction is less than 45 degrees. In some embodiments, the reflected light of the edge of the polarizer is refracted in the direction of the line to a ratio of the refracted ray in the air to the horizontal direction of less than 30 degrees.

In the display device provided by the embodiment of the present invention, by providing a light shielding element to shield a range of edges of the polarizer, the inner edge of the light shielding element has a line with the edge of the polarizer, and the reflected light of the edge of the polarizer is refracted along the connection direction. The angle of the refracted light into the air is less than 30 degrees from the horizontal. Thereby, when the horizontal viewing angle ranges from 30 degrees to 90 degrees, the shading element can block the reflected light of the edge of the polarizer, so that the edge of the polarizer is not visible, thereby improving the visual effect of the display device.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

100, 200, 300, 400, 500, 600, 700, 800‧‧‧ display devices

10, 60‧‧‧ cover

10a‧‧‧Steps

11‧‧‧ polarizer

12‧‧‧Optical components

13‧‧‧Second bonding layer

14, 24, 34‧‧‧ shading components

15‧‧‧First bonding layer

16‧‧‧ third bonding layer

17‧‧‧Protective layer

20‧‧‧Display module

30, 40, 50‧‧‧ touch sensing structure

31, 41, 51‧‧ ‧ touch electrode layer

32, 42, 52‧‧‧ wire layers

43, 53‧‧‧ third substrate

M‧‧·visible area

N‧‧‧Invisible area

Upper surface of S1‧‧ polarizer

S2‧‧‧Down surface of the shielding element

a, b‧‧‧ angle

B, C‧‧‧ edge

P1, P2‧‧‧ rays

D, H‧‧‧ distance

1 is a perspective view of a display device according to a first embodiment of the present invention.

Figure 2 is a cross-sectional view of the display device taken along line A-A of Figure 1.

Figure 3 is a cross-sectional view showing a display device in accordance with a second embodiment of the present invention.

Figure 4 is a cross-sectional view showing a display device in accordance with a third embodiment of the present invention.

Figure 5 is a cross-sectional view showing a display device in accordance with a fourth embodiment of the present invention.

Figure 6 is a cross-sectional view showing a display device in accordance with a fifth embodiment of the present invention.

Figure 7 is a cross-sectional view showing a display device in accordance with a sixth embodiment of the present invention.

Figure 8 is a cross-sectional view showing a display device in accordance with a seventh embodiment of the present invention.

Figure 9 is a cross-sectional view showing a display device in accordance with an eighth embodiment of the present invention.

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. The orientations "upper" and "lower" as used in the disclosure of the present invention are only used to indicate the relative positional relationship. For the drawing, the orientation "upper" is closer to the side of the user, and the orientation is lower. "It is farther away from the user. Furthermore, the first element being "above", "above", "below" or "below" the second element may include the first element in the embodiment being in direct contact with the second element, or may also comprise There are other additional elements between the first element and the second element such that the first element is not in direct contact with the second element.

1 is a perspective view of a display device according to a first embodiment of the present invention. Figure 2 is a cross-sectional view of the display device taken along line A-A of Figure 1. Referring to FIGS. 1 and 2 , the display device 100 of the present embodiment includes a polarizer 11 and a shading element 14 . The polarizer 11 has an upper surface S1, and the light shielding member 14 is disposed above the polarizer 11 and shields at least one edge B of the upper surface S1 of the polarizer 11. The light shielding member 14 has a lower surface S2 disposed opposite to the upper surface S1 of the polarizer 11, and the lower surface S2 has an inner edge C having a line BC with the edge B of the polarizer 11 and a polarizer 11 The angle Δ of the reflected light P1 of the edge B refracted in the direction of the line BC to the air is less than 30 degrees in the horizontal direction. It should be noted that the horizontal direction is a direction parallel to the upper surface S1 of the polarizer 11 when the display device 100 is horizontally placed, for example, the X-axis direction in FIG. In addition, in FIG. 2, only one edge B of the upper surface S1 of the polarizer 11 is identified. It can be understood that the upper surface S1 of the polarizer 11 may have a plurality of edges, for example, when the upper surface S1 of the polarizer 11 has four sides, The four sides are connected in a rectangular shape, and the light shielding elements 14 can be arranged in a ring shape so that the four sides of the polarizer 11 can be effectively shielded, but the invention is not limited thereto.

In addition, in this embodiment, the display device 100 may further include a cover 10 and a second adhesive layer 13. The polarizer 11 is disposed below the cap plate 10. The second adhesive layer 13 is disposed between the cover 10 and the polarizer 11 for bonding the cover 10 and the polarizer 11 together. The shading element 14 is disposed above the polarizer 11 and defines the non-visible area N of the display device 100. The display device 100 further includes a visible area M, and the non-visible area N is located on at least one side of the visible area M. In this embodiment, The non-visible area N is located around the visible area M, but the invention is not limited thereto. For example, the non-visible area N may be located on one side or opposite sides of the visible area M. The inner side edge C of the lower surface S2 of the shading member 14 is an edge adjacent to the visible area M.

The cover 10 has an upper surface, a lower surface and an end surface, and the upper surface is a side close to the user, and a functional coating (not shown) may be formed on the upper surface, such as an anti-reflection layer, an anti-fingerprint layer, an anti-glare layer or Combination of the foregoing. The lower surface of the cover plate 10 is disposed opposite to the upper surface, and the end surface is adjacent to the upper surface and the lower surface. Further, the end surface of the cover 10 has a stepped portion 10a. The stepped portion 10a may be formed by machining an end surface of the cover plate 10 such that the area of the upper surface of the cover plate 10 is smaller than the area of the lower surface. In other embodiments, the cover 10 may be stacked by a plurality of substrates. For example, the cover 10 includes a first substrate (not shown) and a second substrate (not shown). The area of the first substrate is smaller than the second. The area of the substrate, the first substrate and the second substrate are stacked in a center to form a step portion 10a of the cap plate 10. The cover plate 10 is made of a transparent insulating material, such as glass, acrylic (PMMA), polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), polynaphthalene. A transparent material such as polyethylene terephthalate (PEN), polycarbonate (PC), or polystyrene (Ps), and more preferably the above transparent material is subjected to a strengthening process.

The light shielding member 14 is disposed on the step portion 10a of the cover 10, and the upper surface of the light shielding member 14 is flush with the upper surface of the cover 10 to make the display device 100 closer to the user's side. The material of the shading member 14 includes an opaque insulating material such as plastic, insulating ink or photoresist. In the present example, the light shielding member 14 is exemplified by a plastic visor (Bezel). For example, the light shielding member 14 may be similar to the L shape, and the portion of the L-shaped light shielding member 14 is located on the step portion 10a of the cover 10, and the other portion is located on the cover plate. On the end face of 10. The light shielding element 14 and the cover 10 may be connected by glue or by in-mold injection, for example, the cover 10 is placed in the mold, and the molten plastic is injected to cover the peripheral end faces of the cover 10 to form. The light shielding member 14 is integrated with the cover plate 10.

The polarizer 11 is a part of the display module 20. The display module 20 further includes other optical components, such as a color filter, a liquid crystal layer, upper and lower substrates of the liquid crystal layer, and a backlight module, etc., which will be displayed for the sake of brevity. The other optical components of the module 20 are collectively referred to as an optical component 12, which is located below the polarizer 11.

The material of the second adhesive layer 13 may be selected from the group consisting of a transparent optical adhesive, a liquid optical adhesive, a pressure sensitive adhesive, and the like. The refractive index of the second adhesive layer 13 is preferably the same as or close to the refractive index of the cover 10, so that the reflected light of the polarizer 11 is incident on the cover 10 through the second adhesive layer 13 and does not occur large. Offset.

The embodiment of the present invention shields the range of the polarizer 11 by appropriately setting the shading element 14, that is, the reflected light of the edge B of the polarizer is refracted in the direction of the line BC to an angle of less than 30 degrees between the refracted ray in the air and the horizontal direction. The edge of the polarizer 11 is not visible when the horizontal viewing angle ranges from 30 degrees to 90 degrees. Specifically, as shown in FIG. 2, the reflected light of the edge B of the polarizer 11 is a light P1, and the light P1 is a line connecting the edge C of the lower surface S2 of the light shielding member 14 and the edge B of the upper surface S1 of the polarizer 11 in FIG. P1 refracts light refracted into the air through the cover plate 10 as light P2, light The angle between P2 and the normal (for example, the Y-axis) is defined as the angle a, and the angle of view is 90 degrees minus the angle a, that is, the angle between the light P2 and the upper surface of the cover 10. The angle between the light P1 and the normal is defined as b, then b = arcsina / n, where n is the refractive index of the cover 10 with respect to air. As long as the shading element 14 is ensured to block the light P1, the edge B is made invisible when the viewing angle is (90°-a) to 90 degrees. The distance D between the inner edge C of the lower surface S2 of the light shielding member 14 and the edge B of the polarizer 11 in the horizontal direction, that is, the overlap distance of the projection of the light shielding member 14 and the polarizer 11 in the horizontal direction D = H * tanb = H*tan(arcsina/n), where H is the vertical distance from the lower surface S2 of the light shielding element 14 to the upper surface S1 of the polarizer 11. Thus, the value of D can be appropriately set according to the angle a and the distance H such that the edge B of the polarizer 11 is not visible. It should be noted that when the angle of view is smaller, that is, the angle a is larger, or H is larger, the value of D is larger. Generally, when the user normally uses the display device, the horizontal viewing angle is generally not less than 30 degrees, because when the viewing angle is less than 30 degrees, on the one hand, the image displayed by the display device 100 may not be easily viewed by the user, and if The problem that the edge of the polarizer 11 is visible requires that the distance D be set large, which may cause the non-visible area N of the display device 100 to be large, which is disadvantageous for the design of the narrow bezel of the display device 100. The present invention comprehensively considers the foregoing factors, and the range of the polarizer 11 is shielded by appropriately setting the light shielding member 14. When the horizontal viewing angle ranges from 30 degrees to 90 degrees, the light shielding member 14 can block the reflected light P1 at the edge of the polarizer 11 so that the polarizer The edge of 11 is not visible, thereby improving the visual effect of the display device 100. It should be noted that the angle a can be changed according to requirements. For example, in some embodiments, the angle a is 45 degrees, for example, the cover 10 is glass, n is approximately 1.48 to 1.5, and the range of the distance H is 0.1. For millimeters to 3.5 mm, the distance D ranges from 0.06 to 1.9 mm. In this way, when the viewing angle is 45 degrees to 90 degrees, the edge B of the polarizer 11 is invisible, and the visible area M is not too small, and the visual effect of the display device 100 is improved, and the visible area M is also larger. The scope.

Figure 3 is a cross-sectional view showing a display device in accordance with a second embodiment of the present invention. The difference between the present embodiment and the first embodiment is that the display device 200 further includes a touch sensing structure 30. The touch sensing structure 30 is disposed between the cover 10 and the polarizer 11 and Specifically, the touch sensing structure 30 is disposed between the cover 10 and the second bonding layer 13 . The touch sensing structure 30 includes a sensing electrode layer 31 and a wire layer 32. The sensing electrode layer 31 is disposed in the visible area M, and extends to the non-visible area N to be electrically connected to the wire layer 32. The wire layer 32 is disposed on the wire layer 32. Non-visible area N. The material of the sensing electrode layer 31 includes a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), cadmium tin oxide (CTO), and aluminum zinc oxide ( Aluminum zinc oxide (AZO), indium tin zinc oxide (ITZO), graphene (Graphene), nano silver wire (Ag nanowire) or carbon nanotubes (CNT), but not Limited to this. The material of the wire layer 32 includes the same transparent conductive material as the sensing electrode layer 31, or an opaque conductive material such as a metal or alloy such as silver, copper, molybdenum, aluminum, molybdenum or the like. The sensing electrode layer 31 and the wire layer 32 can be formed on the cover plate 10 by printing or laser etching or sputtering or photolithography. The cover plate 10 can serve as both a protective plate of the display device 200 and a sensing electrode. The carrier layer of layer 31 and wire layer 32. The sensing electrode layer 31 generates a touch signal according to the touch, and the wire layer 32 transmits the touch signal to a processor (not shown), and the touch position is calculated by the processor. The display device 200 combines the touch function with the display function, and the user can directly operate and release commands through the objects displayed on the screen, thereby saving traditional input devices such as a keyboard and a mouse, and making the display device 200 more convenient. Other elements in this embodiment are substantially the same as those in the first embodiment, and are not described herein again.

The distance D between the inner edge of the light shielding member 14 and the edge of the upper surface of the polarizer 11 in the horizontal direction can still be calculated by referring to the method of the first embodiment, and generally the thickness of the electrode layer 31 is sensed with the cover 10 and the second bond. The thickness of the layer 13 is very thin compared to negligible, in this embodiment In the above, the refractive index n of the cover 10 is approximately 1.48 to 1.5, and the angle a is 45 degrees. For example, the distance H between the lower surface S2 of the light shielding member 40 and the upper surface S1 of the polarizer 11 in the vertical direction is approximately From 0.5 mm to 1.2 mm, it can be calculated that D ranges from 0.2 mm to 0.7 mm, so that the edge B of the polarizer 11 is invisible when the viewing angle is 45 to 90 degrees.

In addition, the display device 200 may further include a first adhesive layer 15 disposed between the light shielding member 14 and the step portion 10a to enhance the connection between the light shielding member 14 and the cover 10. The first adhesive layer 15 can be a transparent or non-transparent adhesive layer, such as a double-sided adhesive or an optical adhesive.

Figure 4 is a cross-sectional view showing a display device of a third embodiment of the invention. Referring to FIG. 4 , the difference between the present embodiment and the foregoing second embodiment is that the display device 300 further includes a third bonding layer 16 , and the touch sensing structure 40 includes a sensing electrode layer 41 , a wire layer 42 , and a third substrate . 43. The sensing electrode layer 41 is disposed in the visible region M and extends to the non-visible region N to be electrically connected to the wire layer 42. The wire layer 42 is disposed in the non-visible region N. The material of the sensing electrode layer 41 includes a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), cadmium tin oxide (CTO), and aluminum zinc oxide ( Aluminum zinc oxide (AZO), indium tin zinc oxide (ITZO), graphene (Graphene), nano silver wire (Ag nanowire) or carbon nanotubes (CNT), but not Limited to this. The material of the wire layer 42 includes the same transparent conductive material as the sensing electrode layer 41, or an opaque conductive material such as a metal or an alloy such as silver, copper, molybdenum, aluminum, molybdenum or the like. The sensing electrode layer 41 and the wiring layer 42 may be formed on the third substrate 43 by printing, laser etching, sputtering, or lithography. It should be noted that the touch sensing structure 40 may also adopt other structures, for example, the sensing electrode layer may be located on the lower surface of the third substrate 43 or the sensing electrode layer 41 may be located on the upper and lower surfaces of the third substrate 43. Not limited to this. The third adhesive layer 16 is disposed between the cover 10 and the touch sensing structure 40, and more specifically, the third The bonding layer 16 is located between the cap plate 10 and the sensing electrode layer 41 and the wire layer 42. The material of the third bonding layer 16 is preferably the same as the material of the second bonding layer 13, and the refractive indices of the third bonding layer 16 and the third substrate 43 are preferably equal to or close to the refractive index of the cover 10.

Compared with the second embodiment, since the third bonding layer 16 and the third substrate 43 are added, the distance H from the lower surface S2 of the light shielding member 14 to the upper surface S1 of the polarizer 11 becomes large, and the light is blocked. In order to block the reflected light from the edge of the polarizer 11, the distance D will vary according to the distance H.

Figure 5 is a cross-sectional view showing a display device in accordance with a fourth embodiment of the present invention. Referring to FIG. 5, the display device 400 of the present embodiment is different from the foregoing third embodiment in that the end surface of the cover plate 60 is a flat surface, and the light shielding member 14 is integrally formed on the end surface of the cover plate 60, and the light shielding member 14 is The upper surface is flush with the upper surface of the cover plate 60, and the lower surface of the light shielding member 14 is flush with the lower surface of the cover plate 60. The third adhesive layer 16 is located not only between the touch sensing structure 40 and the cover 60 but also between the light shielding component 14 and the touch sensing structure 40. Thus, the gap between the cover 60 and the light shielding component 14 can be further enhanced. Connectivity.

Figure 6 is a cross-sectional view showing a display device in accordance with a fifth embodiment of the present invention. Referring to FIG. 6, the display device 500 of the present embodiment is different from the second embodiment (shown in FIG. 3) in that the end surface of the cover plate 60 is a flat surface, and the light shielding member 14 is disposed on the upper surface of the cover plate 60. For example, the light shielding member 14 is an L-shaped plastic light shielding plate. One side of the L-shaped light shielding member 14 is located on the upper surface of the cover plate 60, and the other side is located on the end surface of the cover plate 60. The light shielding member 14 can be directly attached to the cover plate 60, or can be adhered to the cover plate 60 by a glue layer. In the present embodiment, the light shielding member 14 is directly disposed on the cover plate 60, and it is not necessary to provide a step portion or a groove on the cover plate 60, which simplifies the process steps and reduces the cost. In addition, the display device 500 further includes a protective layer 17 disposed on the sensing layer Between the pole layer 31 and the second bonding layer 13, the protective layer 17 covers the sensing electrode layer 31 and the wiring layer 32 to prevent the sensing electrode layer 31 and the wiring layer 32 from being oxidized by the air before being bonded to the display module 20. Or environmental pollution. The protective layer 17 may be formed by coating, and the material thereof includes a transparent insulating photoresist, a polyimide or an epoxy resin.

Figure 7 is a cross-sectional view showing a display device in accordance with a sixth embodiment of the present invention. Referring to FIG. 7, the display device 600 of the present embodiment is different from the fifth embodiment (shown in FIG. 6) in that the material of the light shielding member 24 is an opaque insulating ink or a photoresist or a plurality of layers of ink and photoresist, and is shielded from light. The component 24 can be formed directly on the upper surface of the cover plate 60 by printing or laser etching or sputtering, lithography, and located in the non-visible area N. Compared with the fifth embodiment, the light-shielding element 24 is formed by insulating ink or photoresist, and the thickness of the light-shielding element 24 can be further reduced to make the display device 600 more light and thin.

Figure 8 is a cross-sectional view showing a display device in accordance with a seventh embodiment of the present invention. Referring to FIG. 8 , the difference between the present embodiment and the sixth embodiment is that the shading element 34 of the display device 700 is disposed on the lower surface of the cover 60 and is located in the non-visible area N. The material and formation manner of the shading element 34 can be The same as the shading element in the sixth embodiment. Compared with the sixth embodiment, since the light shielding member 34 is disposed on the lower surface of the cover plate 60, the distance H of the lower surface of the light shielding member 34 from the upper surface of the polarizer 11 is smaller, according to D=H*tanb, In the case where the angle b is constant, the value of D is also smaller, and the area of the non-visible area N can be further reduced, thereby expanding the area of the visible area M.

Figure 9 is a cross-sectional view showing a display device in accordance with an eighth embodiment of the present invention. Referring to FIG. 9 , the difference between the present embodiment and the seventh embodiment is that the display device 800 further includes a third bonding layer 16 , and the touch sensing structure 50 includes the sensing electrode layer 51 , the wire layer 52 , and the third substrate 53 . The sensing electrode layer 51 is disposed in the visible area M and extends to the non-visible area N to be electrically connected to the wire layer 52. The wire layer 52 is disposed in the non-visible area N. The material of the sensing electrode layer 51 includes a transparent conductive material such as indium tin oxide. wire The material of layer 52 includes a transparent conductive material such as indium tin oxide, or an opaque conductive material such as a metal or alloy such as silver, copper, molybdenum, aluminum, molybdenum or the like. The sensing electrode layer 51 and the wiring layer 52 may be formed on the third substrate 53 by printing, sputtering, or lithography. The third substrate 53 can serve as both a carrier substrate for the sensing electrode layer 51 and the wiring layer 52, and a protective layer for the sensing electrode layer 51 and the wiring layer 52 (similar to the protective layer 17 in the seventh embodiment), so that Before being bonded to the display module 20, the sensing electrode layer 51 and the wiring layer 52 are prevented from being oxidized by the air or contaminated by the environment. It should be noted that the touch sensing structure 50 may also adopt other structures. For example, the sensing electrode layer 51 may be located on the lower surface of the third substrate 53 or the sensing electrode layer 51 may be located on the upper and lower surfaces of the substrate. This is limited. The third bonding layer 16 is disposed between the cover 60 and the touch sensing structure 50. More specifically, the third bonding layer 16 is located between the cover 60 and the sensing electrode layer 51 and the wiring layer 52. The material of the third bonding layer 16 is preferably the same as the material of the second bonding layer 13, and the refractive indices of the third bonding layer 16 and the third substrate 53 are preferably equal to or close to the refractive index of the cap plate 60.

Compared with the seventh embodiment, since the third bonding layer 16 and the third substrate 53 are added, the distance H from the lower surface of the light shielding member 34 to the upper surface of the polarizer 11 becomes large, and the value of D It will change according to the value of H.

In the display device provided by the embodiment of the present invention, by providing a light shielding element to shield a range of edges of the polarizer, the inner edge of the light shielding element has a line with the edge of the polarizer, and the reflected light of the edge of the polarizer is refracted along the connection direction. The angle of the refracted light into the air is less than 30 degrees from the horizontal. Thereby, when the user normally uses the display device, that is, when the horizontal viewing angle ranges from 30 degrees to 90 degrees, the shading element can block the reflected light at the edge of the polarizer, so that the edge of the polarizer is not visible, thereby improving the vision of the display device. effect.

Although the invention has been disclosed above in several preferred embodiments, it is not intended to be limiting The invention may be modified and modified in any way without departing from the spirit and scope of the invention, and the scope of the invention is defined by the scope of the appended claims. Prevail.

200‧‧‧ display device

10‧‧‧ Cover

10a‧‧‧Steps

11‧‧‧ polarizer

12‧‧‧Optical components

13‧‧‧Second bonding layer

14‧‧‧ shading elements

15‧‧‧First bonding layer

20‧‧‧Display module

30‧‧‧Touch sensing structure

31‧‧‧Touch electrode layer

32‧‧‧Wire layer

M‧‧·visible area

N‧‧‧Invisible area

Upper surface of S1‧‧ polarizer

S2‧‧‧The lower surface of the shielding layer

a, b‧‧‧ angle

D, H‧‧‧ distance

Claims (19)

A display device comprising: a polarizer having an upper surface; and a light shielding member disposed above the polarizer and shielding at least one edge of the upper surface of the polarizer, the light shielding member having a polarizer a lower surface of the upper surface opposite to the lower surface, the lower surface having an inner edge, the inner edge having a line connecting the edge of the polarizer, and the reflected light of the edge of the polarizer is refracted into the air along the connecting direction The angle between the refracted ray and the horizontal direction is less than 45 degrees; a cover having an upper surface and an end surface adjacent to the upper surface, the end surface of the cover having a step portion, the light shielding member being disposed on the step Ministry. The display device of claim 1, wherein the reflected light of the edge of the polarizer is refracted in the direction of the line to an angle of less than 30 degrees between the refracted light in the air and the horizontal direction. The display device of claim 1, wherein the inner edge of the light shielding member and the edge of the polarizer have a distance in a horizontal direction of 0.06 mm to 1.9 mm. The display device according to claim 3, wherein a distance between a lower surface of the light shielding member and an upper surface of the polarizer in a vertical direction is 0.1 mm to 3.5 mm. The display device according to claim 1, wherein the inner edge of the light shielding member and the edge of the polarizer have a distance in a horizontal direction of 0.2 mm to 0.7 mm. The display device according to claim 5, wherein a distance between a lower surface of the shielding member and an upper surface of the polarizer in a vertical direction is 0.5 mm to 1.2 mm. The display device of claim 1, wherein the upper surface of the shading element is The upper surface of the cover is flush. The display device of claim 1, further comprising a first adhesive layer, the first adhesive layer being located between the step portion and the light shielding member. The display device of claim 1, wherein the cover plate comprises a first substrate and a second substrate stacked on each other, the area of the first substrate being smaller than the area of the second substrate to form an end surface of the cover plate The step. The display device of any one of claims 1 to 9, further comprising a touch sensing structure disposed between the cover and the polarizer. The display device of claim 10, further comprising a second adhesive layer disposed between the touch sensing structure and the polarizer. The display device of claim 10, further comprising a viewing area, the shading element defining the display device as a non-visible area, the non-visible area being located on at least one side of the visible area, the touch feeling The sensing structure includes a sensing electrode layer and a wire layer. The sensing electrode layer is disposed in the visible region and electrically connected to the wire layer, and the wire layer is disposed in the non-visible region. The display device of claim 12, further comprising a protective layer disposed under the sensing electrode layer and the wiring layer. The display device of claim 12, further comprising a third bonding layer, the touch sensing structure further comprising a third substrate, the third bonding layer being disposed on the cover plate and the The sensing electrode layer and the wire layer are disposed above or below the third substrate between the touch sensing structures. The display device of claim 11, wherein the cover plate has a refractive index equal to a refractive index of the second adhesive layer. The display device of claim 14, wherein the cover plate, the second bonding layer, the third substrate, and the third bonding layer have equal refractive indices. The display device according to any one of claims 1 to 9, wherein the cover plate has a refractive index of 1.48 to 1.5. The display device of claim 1, wherein the material of the shading element comprises an opaque insulating plastic, an insulating ink or an insulating photoresist. The display device of claim 14, wherein the material of the second adhesive layer and the third adhesive layer is a transparent optical adhesive.