Display device

Abstract

The present invention provides a display device, including a display panel, a shading member, a carrier, a backlight module and a back plate. The display panel includes a first substrate and a first polarizing plate, the first substrate has a first surface, the first surface has a first setting area and a first boundary area, the first boundary area is adjacent to the first setting area, and the first polarizing plate is arranged in the first setting area. The carrier is arranged in the first boundary area of ​​the first substrate, the shading member is arranged on the carrier and at least part of the side edge of the shading member is an irregular surface. The backlight module is arranged opposite to the display panel, and the backlight module includes an optical film; the back plate has a side wall, and the side wall is lower than the first substrate. Therefore, the present invention can avoid light leakage in the display panel and improve the display quality.

Description

[0001] This application is a divisional application of the Chinese invention patent application filed on November 22, 2016, with the invention name “Display Device” and application number 201611039970.8 Technical Field

[0002] The invention relates to a display device, and more particularly to a display device capable of improving light leakage. Background Art

[0003] With the advancement of technology, flat panel display devices, such as liquid crystal display devices, have been widely used in various fields. Due to their superior characteristics such as light weight, low power consumption and no radiation, they have gradually replaced traditional cathode ray tube display devices and are applied to many types of electronic products, such as mobile phones, portable multimedia devices, notebook computers, LCD TVs or LCD monitors, etc.

[0004] The structure of a known liquid crystal display device, in one embodiment, includes a color filter substrate and a thin film transistor substrate, which are arranged opposite to each other, and a polarizing plate is attached to the upper surface of the color filter substrate and the lower surface of the thin film transistor substrate respectively. The two polarizing plates have polarization axes that are substantially 90 degrees apart, and the liquid crystal can be deflected by controlling the strength of the electric field to adjust the characteristics of the light, thereby achieving the purpose of allowing the liquid crystal display device to display images.

[0005] However, generally speaking, the area of ​​the upper polarizing plate is smaller than the area of ​​the upper surface of the color filter substrate, and the area of ​​the lower polarizing plate is smaller than the area of ​​the lower surface of the thin film transistor substrate. Therefore, the polarizing plate does not completely cover the upper surface of the color filter substrate or the lower surface of the thin film transistor substrate. When the light emitted by the backlight module passes through the display panel, in addition to passing through the polarizing plate, the light is more likely to pass through the area on the surface of the thin film transistor substrate or the color filter substrate where the polarizing plate is not attached, especially the outer edge of the color filter substrate or the thin film transistor substrate, so that the outer edge area of ​​the display panel will leak light and affect the display quality.

[0006] Therefore, how to provide a display device that can avoid light leakage from a display panel and improve display quality has always been one of the most important issues in the industry. Summary of the invention

[0007] In view of the above problems, an object of the present invention is to provide a flat display device which can avoid light leakage from a display panel and improve display quality.

[0008] The present invention provides a display device, comprising a display panel, a shading member, a carrier and a backlight module. The display panel comprises a first substrate and a first polarizing plate, the first substrate has a first surface, the first surface has a first setting area and a first boundary area, the first boundary area is adjacent to the first setting area, and the first polarizing plate is arranged in the first setting area. The shading member is arranged in the first boundary area, and the shading member is connected to the first polarizing plate. The carrier and the shading member are arranged correspondingly. The backlight module is arranged opposite to the display panel, and the backlight module comprises an optical film, wherein the carrier is arranged between the shading member and the optical film, and the carrier is in contact with the shading member and the optical film.

[0009] The present invention also proposes a display device, including a display panel, a shading member, a carrier and a backlight module. The display panel includes a first substrate, a second substrate, a first polarizing plate and a second polarizing plate. The first substrate and the second substrate are arranged opposite to each other. The first substrate has a first surface away from the second substrate. The first surface has a first setting area and a first boundary area. The first boundary area is adjacent to the first setting area. The first polarizing plate is arranged in the first setting area. The second substrate has a second surface away from the first substrate. The second surface has a second setting area and a second boundary area. The second boundary area is adjacent to the second setting area. The second polarizing plate is arranged in the second setting area. The shading member is arranged in the second boundary area of ​​the second substrate, and the shading member is connected to the second polarizing plate. The carrier is arranged in the first boundary area of ​​the first substrate. The backlight module is arranged corresponding to the display panel. The backlight module includes an optical film, wherein the carrier is arranged between the first substrate and the optical film, and the carrier is in contact with the first boundary area and the optical film.

[0010] The present invention also provides a display device, including a display panel, a shading member and a back plate. The display panel includes a first substrate, a second substrate and a polarizing plate, the first substrate and the second substrate are arranged opposite to each other, the second substrate has a surface away from the first substrate, the surface has a setting area and a boundary area, the boundary area is adjacent to the setting area, and the polarizing plate is arranged in the setting area. The shading member is arranged in the boundary area of ​​the second substrate, and the shading member is connected to the polarizing plate. The first substrate is arranged on the back plate.

[0011] As mentioned above, in the display device of the present invention, since the shading element is arranged in the first boundary area or the second boundary area, and the shading element is connected to the first polarizing plate or the second polarizing plate, the light directed to the display panel can be shielded by the shading element located in the first boundary area or the second boundary area, thereby avoiding light leakage of the display panel and improving the display quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein:

[0013] Figure 1A The figure is a partial cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0014] Figure 1B for Figure 1A A schematic diagram of the relative positions of the first substrate, the first polarizing plate and the shading element in a top view in a display device.

[0015] Figure 1C FIG. 4 is a schematic diagram of the relative positions of the first substrate, the first polarizing plate and the light shielding element in a top view according to another embodiment.

[0016] Figure 1D It is a partial three-dimensional schematic diagram of a shading member and a supporting member according to an embodiment.

[0017] Figure 1E FIG. 4 is a schematic diagram of the relative positions of the first substrate, the first polarizing plate and the light shielding element in a top view according to another embodiment.

[0018] Figures 2A to 2G They are schematic diagrams of display devices according to different implementation aspects of the present invention. DETAILED DESCRIPTION

[0019] The following will describe display devices according to some embodiments of the present invention with reference to the relevant drawings, wherein the same components will be described with the same reference symbols.

[0020] The drawings of all embodiments of the present invention are only for illustration and do not represent the actual size and proportion. In addition, the positions "upper" and "lower" referred to in the content of the following embodiments are only used to indicate the relative positional relationship. Furthermore, a device formed "on", "above", "lower" or "under" another device may include one device in the embodiment directly contacting another device, or may also include other additional devices between one device and another device so that one device is not in direct contact with another device. In addition, a device "facing" another device may include one device in the embodiment directly facing another device, or may also include other additional devices between one device and another device so that one device is not directly facing another device. Furthermore, the descriptions of first, second, third, etc. are only for naming and do not represent the order.

[0021] Please refer to Figure 1A and Figure 1B As shown, Figure 1A is a partial cross-sectional schematic diagram of a display device 1 according to an embodiment of the present invention, and Figure 1B for Figure 1A Schematic diagram of the relative positions of the first substrate 111, the first polarizing plate 113 and the light shielding member 12 in a top view in the display device 1.

[0022] The display device 1 is a liquid crystal display device, and includes a display panel 11, a shading member 12, a carrier 13, and a backlight module 14. The backlight module 14 is arranged opposite to the display panel 11, and the backlight module 14 can emit light through the display panel 11, so that the display panel 11 displays an image. The display panel 11 of the present embodiment can be a fringe field switching (FFS) type liquid crystal display panel, or a horizontal switching (IPS) type or a twisted nematic (TN) type liquid crystal display panel, or a vertical alignment (VA) type liquid crystal display panel, or other types of liquid crystal display panels, and is not limited thereto.

[0023] like Figure 1A As shown, the display panel 11 of the present embodiment includes a first substrate 111, a second substrate 112, a liquid crystal layer (not shown), a first polarizing plate 113, and a second polarizing plate 114. The first substrate 111 and the second substrate 112 are disposed opposite to each other, and the liquid crystal layer is disposed between the first substrate 111 and the second substrate 112. In some embodiments, the material of the first substrate 111 or the second substrate 112 may include glass, plastic, or quartz, but is not limited thereto; in some embodiments, the first substrate 111 or the second substrate 112 may be a soft board, a hard board, or a hard-soft board, but is not limited thereto; in some embodiments, the first substrate 111 or the second substrate 112 may also be a capping layer or a barrier film, which is not limited to the present invention.

[0024] The first substrate 111 of the present embodiment is a thin film transistor substrate (TFT substrate) as an example, and the second substrate 112 is a color filter substrate (CF substrate) as an example. In different embodiments, the black matrix layer (black matrix) on the color filter substrate can be disposed on the thin film transistor substrate, so that the first substrate 111 becomes a BOA (BM on array) substrate, or the color filter layer on the color filter substrate can also be disposed on the thin film transistor substrate, so that the first substrate 111 becomes a COA (color filter on array) substrate; or the first substrate 111 can also be a color filter substrate, and the second substrate 112 can also be a thin film transistor substrate, but it is not limited thereto.

[0025] The first polarizing plate 113 of the present embodiment may be a lower polarizing plate, and the second polarizing plate 114 may be an upper polarizing plate. In different embodiments, the first polarizing plate 113 may also be an upper polarizing plate, and the second polarizing plate 114 may also be a lower polarizing plate, without limitation thereto. In the present embodiment, the first polarizing plate 113 (lower polarizing plate) is disposed on a side of the first substrate 111 away from the second substrate 112, and the second polarizing plate 114 (upper polarizing plate) is disposed on a side of the second substrate 112 away from the first substrate 111. Here, the first polarizing plate 113 is disposed on the first surface S1 (lower surface) of the first substrate 111, and the second polarizing plate 114 is disposed on the second surface S2 (upper surface) of the second substrate 112. For example, by using a first polarizer 113 and a second polarizer 114 whose polarization axes differ by 90 degrees, the liquid crystal can be deflected by controlling the strength of the electric field to adjust the characteristics of the light emitted by the backlight module 14, so as to achieve the purpose of displaying images on the display panel 11. In other embodiments, polarizers of other designs can also be used as required, and the present invention is not limited thereto.

[0026] The first surface S1 of the first substrate 111 may have a first setting area S11 and a first border area S12. The first border area S12 may be adjacent to the first setting area S11, and the first polarizer 113 may be set in the first setting area S11. In other words, the first setting area S11 may be an area on the first surface S1 of the first substrate 111 where the first polarizer 113 is attached, and the area on the first surface S1 of the first substrate 111 where the polarizer is not attached may be the first border area S12. Since the area of ​​the first polarizer 113 is smaller than the area of ​​the first surface S1, when the first polarizer 113 is set on the first surface S1, there are some areas that are not attached to the polarizer, and the area where the polarizer is not attached may be the first border area S12. Figure 1B As shown, the first boundary area S12 of this embodiment is disposed outside (e.g., on four sides) of the first setting area S11 of the first substrate 111. In different embodiments, the first boundary area S12 may also be located on one side, two sides, or three sides of the first surface S1 of the first substrate 111, but is not limited thereto.

[0027] Similarly, the second surface S2 of the second substrate 112 may have a second setting area S21 and a second boundary area S22, the second boundary area S22 may be adjacent to the second setting area S21, and the second polarizing plate 114 may be disposed in the second setting area S21. In other words, since the area of ​​the second polarizing plate 114 is also smaller than the area of ​​the second surface S2, when the second polarizing plate 114 is disposed on the second surface S2, some areas are not attached to the polarizing plate, and the areas not attached to the polarizing plate may be the second boundary area S22. The second boundary area S22 of the present embodiment is also surrounded by the outer side (e.g., four sides) of the second setting area S21 of the second substrate 112. In different embodiments, the second boundary area S22 may also be located on one side, two sides, or three sides of the second surface S2 of the second substrate 112, and is not limited thereto.

[0028] like Figure 1A As shown, the light shielding member 12 may be disposed on the first boundary region S12 of the first surface S1 and connected to the first side surface S3 of the first polarizing plate 113. Figure 1B As shown, the light shielding member 12 of this embodiment is disposed in the first boundary region S12 and connected to the four sides of the first polarizing plate 113. Specifically, the light shielding member 12 is disposed in the first boundary region S12, so that the first polarizing plate 113 and the light shielding member 12 are substantially located on the first surface S1 of the first substrate 111. In other embodiments, the light shielding member 12 may be disposed only on one side of the first boundary region S12, or on two sides, or on three sides, or in a segmented and spaced arrangement, and is not limited thereto.

[0029] like Figure 1C As shown, Figure 1C The shading member 12 is arranged in segments at intervals on the four sides of the first boundary area S12, and the sides of some segments (such as segment 121) of the shading member 12 can be smooth straight lines; or, the sides of some segments (such as segment 122) of the shading member 12 can be irregular surfaces; or, the segments of the shading member 12 can have different lengths and can be arranged on one side, or many segments of the same length can be arranged, or many segments of different lengths can be arranged; or, the surface of the shading member 12 that contacts the carrier 13 can be a smooth or irregular surface, and is not limited thereto. Specifically, the shading member of the present invention can be various combinations of the above-mentioned embodiments, and is not limited thereto.

[0030] The shading member 12 may be made of insulating material, such as but not limited to acrylic adhesive. The resistance value of the shading member 12 may be between 10 8 Ω and 10 15 Ω between (10 8 Ω≦Resistance≦10 15 Ω), in other embodiments, the resistance value may also be between 10 10 Ω and 10 15Ω between (10 10 Ω≦Resistance≦10 15 Ω). In addition, in order to have a shading effect, the shading member 12 may be, for example, black, but the present invention is not limited to this. In different embodiments, the shading member 12 may also be gray, or be formed of materials of other colors but with low light transmittance. The above-mentioned light transmittance may be defined, for example, by the optical density of the material, and the optical density of the material may be measured, for example, using an illuminance meter. Among them, the optical density (Optical Density, OD) value of the shading member 12 may, for example, be greater than or equal to 1 and less than or equal to 4 (1≦OD≦4). In other embodiments, the optical density value of the shading member 12 may, for example, be greater than or equal to 2 and less than or equal to 4 (2≦OD≦4). Among them, an optical density value equal to 2 indicates a transmittance of 1 / 100, and an optical density value equal to 4 indicates a transmittance of 1 / 10000, and so on.

[0031] In some embodiments, the shading member 12 may also be formed by a black shading glue or a shading tape, but the present invention is not limited thereto. The viscosity of the shading glue may be greater than or equal to 100 centipoise (CP) and less than or equal to 1000 centipoise (100 centipoise≦viscosity≦1000 centipoise). In different embodiments, the viscosity of the shading glue may be greater than or equal to 350 centipoise and less than or equal to 750 centipoise (350 centipoise≦viscosity≦750 centipoise). In different embodiments, the viscosity of the shading glue may also be greater than or equal to 400 centipoise and less than or equal to 500 centipoise (400 centipoise≦viscosity≦500 centipoise), for example, the viscosity may be 450 centipoise. The shading glue may be disposed in the first boundary area S12 by coating. In some embodiments, in order to ensure that the light shielding glue contacts the first side surface S3 of the first polarizing plate 113, in the manufacturing process of applying the light shielding glue, it can be applied from the first boundary area S12 to the protective film (not shown) of the first polarizing plate 113. Since the first side surface S3 of the first polarizing plate 113 has a thickness, the light shielding glue will be disconnected during the coating process due to the thickness of the first side surface S3, and only remain on the first boundary area S12 and the protective film of the first polarizing plate 113. Therefore, after the light shielding glue is cured, the protective film on the first polarizing plate 113 is torn off, and the light shielding glue on the first polarizing plate 113 can be removed, so as to achieve the purpose of making the light shielding glue and the first side surface S3 of the first polarizing plate 113 aligned and fully coated. Among them, the cured light shielding glue located in the first boundary area S12 is the light shielding member 12. In other embodiments, the light shielding glue can be set in the entire area of ​​the first boundary area S12, or only coated on a part of the first boundary area S12, but is not limited thereto. In addition, the method of forming the shading element is not limited to the above method, and it can be set in an attached manner, for example, but is not limited thereto.

[0032] The thickness of the shading member 12 may be smaller than the thickness of the first polarizing plate 113. Figure 1AAs shown, the thickness d1 of the shading member 12 may be greater than or equal to 1 / 12 of the thickness d2 of the first polarizing plate 113, and less than or equal to the thickness d2 of the first polarizing plate 113 (d2 / 12≦d1≦d2). In other embodiments, the thickness d1 of the shading member 12 may be greater than or equal to 1 / 12 of the thickness d2 of the first polarizing plate 113, and less than or equal to 1 / 2 of the thickness d2 of the first polarizing plate 113 (d2 / 12≦d1≦d2 / 2). In one embodiment, the thickness of the first polarizing plate 113 is, for example, 180 microns, and the thickness of the shading member 12 is, for example, greater than or equal to 15 microns and less than or equal to 20 microns. It is particularly mentioned that, in some embodiments, since the shading member 12 is formed by applying a shading glue, the surface of the shading member 12 may be uneven, and therefore, the thickness of the shading member 12 mentioned above may be the "average thickness" of the shading member 12.

[0033] Furthermore, if Figure 1A As shown, the carrier 13 can be arranged corresponding to the shading member 12, and the carrier 13 can be arranged between the backlight module 14 and the display panel 11. The carrier 13 of this embodiment is arranged between the shading member 12 and the optical film 143, so that the carrier 13 can contact the shading member 12 and the optical film 143 of the backlight module 14 to carry the display panel 11. The carrier 13 of this embodiment can be a spacer, or other devices that can carry the display panel 11 or can be spaced between the display panel 11 and the backlight module 14, but is not limited to this. In addition, the material of the carrier 13 can also be, for example but not limited to, UV glue or tape. The thickness d3 of the carrier 13 can be the height protruding from the shading member 12 to the backlight module 14, and the sum of the thickness d1 of the shading member 12 and the thickness d3 of the carrier 13 can be greater than or equal to the thickness d2 of the first polarizer 113 (i.e. (d1+d3)≧d2). In some embodiments, the carrier 13 may be disposed on all of the shading members 12, or on part of the shading members 12; in some embodiments, the carrier 13 may be a single component, or a component with gaps in one section, or composed of multiple components, and the present invention is not limited thereto. The shape of the carrier 13 in this embodiment is only an example, and in other embodiments, the carrier 13 may also have other shapes, and the present invention is not limited thereto.

[0034] In addition, the backlight module 14 further includes an optical device 141, a reflective device 142, an optical film 143 and a back plate 144. Among them, when the backlight module 14 is a side-entry backlight module, the optical device 141 can be a light guide plate. The optical device 141 can be made of a light-transmitting material, such as acrylic resin, polycarbonate, polyethylene resin or glass, and is not limited thereto. The cross-sectional shape of the optical device 141 can be, for example, a flat plate, a wedge, or other shapes, but is not limited thereto. The backlight module 14 of this embodiment is a side-entry backlight module, and the optical device 141 is an example of a light guide plate. Therefore, the light-emitting device (not shown) can emit light and be incident on the light guide plate from the light incident surface (side) of the light guide plate, and then emitted from the light emitting surface (top surface) of the light guide plate to provide a surface light source to the display panel 11. When the backlight module 14 is a direct-type backlight module, the optical device 141 can be an array light-emitting diode layer, but is not limited thereto.

[0035] The reflective device 142 may be disposed on the bottom surface of the optical device 141, and may reflect the light penetrating the bottom surface back into the inside of the optical device 141, thereby improving the light utilization rate. The reflective device 142 may be a reflective layer (e.g., a metal coating) or a reflective sheet. Here, the reflective device 142 is taken as an example of a reflective sheet. The reflective device 142 may have a reflective material, and the reflective material may include, for example, metal, metal oxide, high reflective paint (white paint), or a combination thereof, but is not limited thereto.

[0036] The optical film 143 is disposed on the light-emitting surface (top surface) of the optical device 141. The backlight module 14 of this embodiment has four optical films (collectively referred to as 143) stacked one on top of the other in order from bottom to top. In other embodiments, the backlight module 14 may also include other numbers of optical films, but is not limited thereto. The optical film 143 is, for example but not limited to, a diffuser, a 90° light-collecting film, a 0° light-collecting film, a rhombus film, a brightness enhancement film, or other optical films, or a combination thereof, whereby the light emitted from the optical device 141 can pass through the optical film 143 to form a surface light source.

[0037] The back plate 144 can be used to carry the optical device 141, the reflective device 142 and the optical film 143, and can also be used to set the display panel 11 to provide appropriate protection, such as preventing collision, electromagnetic waves, electric shock or moisture from damaging the backlight module 14 or the display panel 11. In addition, the material of the back plate 144 can be plastic, metal, alloy, polyester, carbon fiber, or a combination thereof, without limitation. In some embodiments, the back plate 144 can also be an appearance frame, and its material can be metal, alloy or plastic, but is not limited thereto.

[0038] As mentioned above, in the display device 1 of the present embodiment, since the shading member 12 is disposed in the first boundary area S12 of the first substrate 111 and is connected to the first side surface S3 of the first polarizing plate 113, the light emitted by the backlight module 14 and directed toward the display panel 11 can be shielded by the shading member 12 located in the first boundary area S12, so the light will not pass through the outer edge of the display panel 11 and illuminate the device (not shown) inside the display panel 11. Therefore, light leakage of the display panel 11 can be avoided and the display quality can be improved.

[0039] It is worth mentioning that although the shading member 12 is disposed in the first boundary area S12 of the first substrate 111 and connected to the first side surface S3 of the first polarizing plate 113, there may still be a gap between the side wall 1441 of the back plate 144 of the backlight module 14 and the shading member 12 (side surface), resulting in light leakage. Therefore, in some embodiments, the shading member 12 may also extend from the first boundary area S12 of the first substrate 111 toward the side wall 1441 of the back plate 144 and connect to the side wall 1441 (not shown), thereby preventing light from passing through the gap between the side wall 1441 and the side surface of the shading member 12 and causing light leakage. In addition, in other embodiments, the back plate 144 may also be closely attached to the side surface of the display panel 11 and directly connected to the shading member 12, but is not limited thereto.

[0040] In addition, metal oxide thin film transistors are the mainstream driving devices in display panels at present, but because metal oxide thin film transistors are prone to threshold voltage (Vt) shift after being illuminated, causing bright spots on the display panel, the structural design of the present invention can be applied to metal oxide thin film transistors that cover the boundary area, such as metal oxide thin film transistors of gate driver on panel (GOP) in the non-display area, or metal oxide thin film transistors in the setting area affected by unexpected light entering the setting area from the boundary area, thereby avoiding light leakage in the outer edge area of ​​the panel and avoiding the occurrence of bright spots, but the present invention is not limited to this. Among them, the above-mentioned metal oxide is, for example, indium gallium zinc oxide (IGZO).

[0041] In addition, in different embodiments, the light shielding member 12 may be formed by attaching a light shielding tape instead of coating the light shielding glue. Figure 1D and Figure 1E As shown, Figure 1D is a partial three-dimensional schematic diagram of a shading member 12 and a carrier 13 according to an embodiment. Figure 1E FIG. 1 is a schematic diagram of relative positions of the first substrate 111 , the first polarizing plate 113 , and the light shielding element 12 in a top view according to another embodiment.

[0042] exist Figure 1D In the embodiment of the present invention, the shading member 12 is, for example but not limited to, a single-sided adhesive, and the supporting member 13 is, for example but not limited to, a spacer material or a buffer material to provide a spacer or buffer function. Figure 1E As shown, the first boundary region S12 is located on the upper side, the left side and the right side of the first surface S1 of the first substrate 111, and there is no boundary region on the lower side of the first surface S1. Figure 1E In the top view, part of the shading member 12 protrudes from the upper side, lower side and right side of the first surface S1. In actual application, in order to play the role of shading and fixing, the shading member 12 protruding from the upper side, lower side and right side of the first surface S1 will be bent and pasted in the direction of the backlight module to fit the backlight module, and will not appear when viewed from top. In this embodiment, taking the example of setting the shading member 12 and the carrier 13 on the right side of the first substrate 111, and part of the shading member 12 protruding from the upper side, lower side and right side of the first surface S1, the protruding part of the shading member 12 is conducive to bending and pasting in the direction of the backlight module, so that the shading member 12 can be fixed on the backlight module. Figure 1E The state in which the shading member 12 protrudes from the first surface S1 is only an example. In different embodiments, in addition to protruding from the upper side, lower side and right side of the first surface S1, the shading member 12 may also have the same protruding configuration on different sides (i.e., the upper side and the left side), or any combination of the upper side, the lower side and the right side, and is not limited thereto.

[0043] Please refer to Figures 2A to 2G As shown, they are schematic diagrams of display devices 1a-1g according to different embodiments of the present invention.

[0044] like Figure 2A As shown, the display device 1a and Figure 1A The difference between the display device 1 and the display device 1a is that the shading member 12 of the display device 1a is not only disposed on the first boundary area S12 of the first substrate 111, but also disposed on the second side surface S4 of the first substrate 111 and extending to the third side surface S5 of the second substrate 112. Therefore, the shading member 12 can not only shield the light emitted by the backlight module 14 and directed toward the first boundary area S12, but also shield the light emitted toward the second side surface S4 of the first substrate 111 and the side wall 1441 of the back plate 144.

[0045] In addition, if Figure 2B As shown, the display device 1b and Figure 1AThe difference between the display device 1 and the display device 1 is that, in addition to being disposed in the first boundary area S12 of the first substrate 111, the shading member 12 of the display device 1b is further disposed in the second boundary area S22 of the second substrate 112, and the shading member 12 is also connected to the fourth side surface S6 of the second polarizing plate 114. In some embodiments, the shading member 12 may be disposed in the second boundary area S22 and connected to, for example, four fourth side surfaces S6 of the second polarizing plate 114. In other embodiments, the shading member 12 may also be disposed in a partial area of ​​the second boundary area S22, and is not limited thereto. In addition, the shading member 12 may also extend from the first boundary area S12 of the first substrate 111 toward the side wall 1441 of the back plate 144 and connect to the side wall 1441 (not shown), thereby preventing light from passing through the gap between the side wall 1441 and the side surface of the shading member 12 to cause light leakage.

[0046] In addition, if Figure 2C As shown, the display device 1c and Figure 2B The difference between the display device 1 b and the display device 1 c is that the light shielding member 12 of the display device 1 c is further disposed on the second side surface S4 of the first substrate 111 and the third side surface S5 of the second substrate 112 .

[0047] In addition, if Figure 2D As shown, the display device 1d and Figure 1A The main difference between the display device 1 and the display device 1 is that the first substrate 111 of the display device 1d is a color filter substrate (CF substrate), and the second substrate 112 is a thin film transistor substrate (TFT substrate). In addition, in addition to being disposed in the first boundary area S12 of the first substrate 111 (CF substrate) and contacting the first side surface S3 of the first polarizing plate 113, the shading member 12 is further extended and disposed on the second side surface S4 of the first substrate 111, the third side surface S5 of the second substrate 112, and the fourth side surface S6 of the second polarizing plate 114. In addition, the carrier 13 of the present embodiment may be, for example, a plastic frame, and the carrier 13 may be disposed between the side wall 1441 and the shading member 12, and the carrier 13 is respectively in contact with the side wall 1441, the shading member 12, the second polarizing plate 114, and the optical film 143 of the backlight module 14, so that the backlight module 14 can be disposed opposite to the display panel 11 by carrying the display panel 11 through the carrier 13. Here, the carrier 13 of the present embodiment is an inverted L-shape, with a portion located between the light shielding member 12 and the side wall 1441 of the back plate 144, and a portion located between the second polarizer 114 and the optical film 143. In addition, the second polarizer 114 of the present embodiment is fully attached to the second surface S2 of the second substrate 112. In other words, the area of ​​the second polarizer 114 is similar to the area of ​​the second substrate 112, and there is almost no second boundary area S22.

[0048] In addition, if Figure 2E As shown, Figure 1ASimilarly, the display device 1e of the present embodiment may include a display panel 11, a shading member 12, a carrier 13 and a backlight module 14. Among them, the first polarizing plate 113 may be arranged in the first setting area S11 of the first substrate 111, and the second polarizing plate 114 may be arranged in the second setting area S21 of the second substrate 112. Here, the first substrate 111 is still a TFT substrate, and the second substrate 112 is still a CF substrate. However, the shading member 12 of the present embodiment is arranged on the second boundary area S22 of the second substrate 112, and is connected to the fourth side S6 of the second polarizing plate 114, and the shading member 12 may extend from the second boundary area S22 to the direction of the side wall 1441 of the back plate 144 and connect to the side wall 1441 to prevent light from passing through the gap between the side wall 1441 and the third side S5 or the second side S4 to cause light leakage. The light shielding member 12 may be disposed on the entire area of ​​the second boundary area S22 of the second substrate 112 (CF substrate), or may be disposed on a partial area of ​​the second boundary area S22 of the second substrate 112, without limitation. In addition, the carrier 13 of this embodiment may be disposed on the first boundary area S12 of the first substrate 111, and may be disposed between the first substrate 111 and the optical film 143, and the carrier 13 may contact the first boundary area S12 and the optical film 143.

[0049] In addition, if Figure 2F As shown, the shading member 12 and the carrier 13 of this embodiment are Figure 1D and Figure 1ECorresponding embodiments. Among them, the shading member 12 can be a single-sided tape, and the supporting member 13 can be a spacer material or a buffer material. Here, the shading member 12 can be connected to the lower surface of the first polarizing plate 113 and the supporting member 13, and the supporting member 13 and the shading member 12 can be arranged correspondingly. The supporting member 13 can be arranged between the shading member 12 and the optical film 143 of the backlight module 14, and the supporting member 13 can be in contact with the shading member 12 and the optical film 143. In addition, the back plate 144 can have a side wall 1441, and the side wall 1441 of the back plate 144 of the present embodiment extends to the display panel 11 for a shorter length, and its height is, for example, approximately flush with the height of the optical film 143. The supporting member 13 can be arranged between the side wall 1441 and the shading member 12, and the supporting member 13 can be in contact with the side wall 1441 and the shading member 12, respectively. In addition, the shading member 12 of the present embodiment can be further extended from the carrier 13 in the lateral direction, so as to be folded downward from the side wall 1441 of the back plate 144, so as to be arranged on the fifth side surface S7 of the side wall 1441 away from the optical film 143 and attached to the side wall 1441, thereby, the light emitted by the backlight module 14 and directed to the display panel 11 can be shielded by the shading member 12, so as to avoid the light leakage of the display panel 11 and improve the display quality. In other embodiments, the shading member 12 may further include an adhesive layer (not shown) on the side facing the display panel 11 to strengthen the connection strength between the display panel 11 and the backlight module 14. The adhesive layer can be arranged in the area of ​​the shading member 12 that needs to be adhered, and is not limited. In other embodiments, the shading member 12 may be disposed in the first boundary area S12 of the first substrate 111 and contact the first side surface S3 of the first polarizing plate 113, and the supporting member 13 may be disposed between the first polarizing plate 113 and the optical film 143 and contact the first polarizing plate 113 and the optical film 143, which is also not limited.

[0050] In addition, the display device 1f of the present embodiment may further have a fixing member 15, which may be an appearance member and may contact the fourth side surface S6 of the second polarizing plate 114, and may extend from the fourth side surface S6 and be disposed on the sides of the display panel 11 and the backlight module 14, and may cover a portion of the bottom surface of the back plate 144, so that the shading member 12 is further located between the side wall 1441 and the fixing member 15, and the shading member 12 may contact the side wall 1441 and the fixing member 15 respectively. In other embodiments, there may be a gap between the fixing member 15 and the fourth side surface S6 of the second polarizing plate 114, which is not limited. The fixing member 15 may strengthen the connection strength between the display panel 11 and the backlight module 14, or may give the display device 1f an aesthetically pleasing appearance.

[0051] In addition, if Figure 2GAs shown, the display device 1g of this embodiment is an organic light-emitting diode (OLED) display device, and includes a display panel 11 , a light shielding member 12 and a back plate 144 .

[0052] The display panel 11 may include a first substrate 111, a second substrate 112, and a polarizing plate 114. The first substrate 111 and the second substrate 112 may be disposed opposite to each other, and a display medium layer may be disposed between the first substrate 111 and the second substrate 112. In this embodiment, the first substrate 111 may be a TFT substrate, the display medium layer may be an organic light emitting diode layer (not shown), and the second substrate 112 may be a protective substrate (or encapsulation layer) to protect the organic light emitting diode layer and the TFT substrate from being damaged by the intrusion of moisture or foreign matter. In some embodiments, the first substrate 111 or the second substrate 112 may be a soft board, a hard board, or a hard-soft board, but is not limited thereto.

[0053] The second substrate 112 of the present embodiment may have a surface S2 away from the first substrate 111, and the surface S2 may have a setting area S21 and a boundary area S22, the boundary area S22 may be adjacent to the setting area S21, and the polarizing plate 114 may be set in the setting area S21. In other words, since the area of ​​the polarizing plate 114 is smaller than the area of ​​the surface S2, when the polarizing plate 114 is set on the surface S2, there are some areas that are not attached to the polarizing plate, and the area without the polarizing plate attached may be the boundary area S22. The boundary area S22 of the present embodiment is surrounded by the outside (for example, four sides) of the setting area S21 of the second substrate 112. In different embodiments, the boundary area S22 may also be located on one side, two sides, or three sides of the surface S2 of the second substrate 112, but is not limited thereto. In addition, the polarizing plate 114, for example but not limited to a 1 / 4λ circular polarizer, can improve the display quality of the display device 1g.

[0054] The thickness d1 of the shading member 12 may be less than or equal to the thickness d2 of the polarizing plate 114. In one embodiment, the thickness d1 of the shading member 12 may be greater than or equal to 0, and less than or equal to the thickness d2 of the polarizing plate 114 (0≦d1≦d2). In one embodiment, the thickness d1 of the shading member 12 may be greater than or equal to 0, and less than or equal to 1 / 2 of the thickness d2 of the polarizing plate 114 (0≦d1≦d2 / 2). In one embodiment, the thickness d1 of the shading member 12 may be greater than or equal to 1 / 30 of the thickness d2 of the polarizing plate 114, and less than or equal to 1 / 2 of the thickness d2 of the polarizing plate 114 (d2 / 30≦d1≦d2 / 2). In other embodiments, the thickness d1 of the shading member 12 may be greater than or equal to 1 / 30 of the thickness d2 of the polarizing plate 114, and less than or equal to 1 / 3 of the thickness d2 of the polarizing plate 114 (d2 / 30≦d1≦d2 / 3). In one embodiment, the thickness of the shading member 12 is, for example, greater than or equal to 15 microns and less than or equal to 20 microns. It is worth mentioning that in some embodiments, since the shading member 12 is formed by applying a shading glue, the surface of the shading member 12 may be uneven. Therefore, the thickness of the shading member 12 mentioned above may be the "average thickness" of the shading member 12. In this embodiment, other technical features of the shading member 12 are the same as those in the embodiment of the present invention. Figure 1A The shading member 12 is the same as that in the embodiment of the present invention, so other descriptions of the characteristics of the shading member 12 (such as resistance, viscosity, etc.) can refer to the above and will not be repeated here.

[0055] In addition, the shading element 12 may be disposed in the boundary region S22 of the second substrate 112, and the shading element 12 is connected to the fourth side surface S6 of the polarizing plate 114, but does not extend to the back plate 144. Figure 2E As shown, the shading member 12 may also extend from the boundary area S22 toward the side wall 1441 of the back plate 144 and connect to the side wall 1441, thereby preventing light from passing through the gap between the side wall 1441 and the side of the first substrate 111 and causing light leakage. In this embodiment, the shading member 12 is formed by a shading glue through a coating manufacturing process. Although it has the same shading function as the black matrix (BM) in the surface of the display panel 11, it is a separately arranged component, and the setting and manufacturing process of its device may be the same as or different from that of the black matrix, and is not limited. In addition, in other undrawn embodiments, the shading member 12 may also be arranged in the display area of ​​the display panel 11 to prevent light mixing between the subpixels of the display panel, and its function is approximately the same as that of the BM.

[0056] The back plate 144 carries the display panel 11, and the first substrate 111 is disposed on the back plate 144. In some embodiments, the first substrate 111 contacts the back plate 144. The back plate 144 can provide appropriate protection, such as preventing collision, electromagnetic waves, electric shock or moisture from damaging the display panel 11. In addition, the material of the back plate 144 can be plastic, metal, alloy, polyester, carbon fiber, or a combination thereof, without limitation. In some embodiments, the back plate 144 can also be an appearance frame, and the material can be metal, alloy or plastic, without limitation thereto.

[0057] In addition, other technical features of the display devices 1a to 1g can refer to the same components of the display device 1 and will not be described in detail.

[0058] It is particularly noted that the shading member 12, the back plate 144 or other devices in the above-mentioned display devices 1, 1a~1g can be arranged in any manner as required, and the present invention is not limited thereto. In addition, one side of the above-mentioned reflective device 142 of the present invention is flush with the optical device 141. In different embodiments, the reflective device 142 can also be smaller than the optical device 141, and can be attached between the optical device 141 and the back plate 144 by double-sided tape, for example, to strengthen the connection strength between the optical device 141 and the back plate 144. In addition, the display device of the present invention can also be a flexible display device, a curved display device, a touch display device, or other types of display devices, not limited thereto. In other embodiments, the shading member 12 of the present invention can also be used in combination with a display device formed by other display media and arranged as required for shading purposes, such as an organic light emitting diode (OLED) display device, a micro light-emitting diode (micro LED) display device, a quantum dot (QD) display device, or other types of display devices, not limited thereto.

[0059] To summarize, in the display device of the present invention, since the shading member is disposed at the boundary area or side of the first substrate, or the boundary area or side of the second substrate, and the shading member is connected to the side of the first polarizing plate or the second polarizing plate, the light emitted by the backlight module and directed toward the display panel can be shielded by the shading member, and the light will not pass through the outer edge of the display panel. Therefore, light leakage of the display panel can be avoided and the display quality can be improved.

[0060] The above description is for illustrative purposes only and is not intended to be limiting. Any equivalent modifications or changes made thereto without departing from the spirit and scope of the present invention should be included in the appended claims.

Claims

1. A display device, characterized in that: The display device comprises: A display panel, comprising a first substrate, a second substrate, a first polarizing plate and a second polarizing plate, wherein the first substrate is arranged opposite to the second substrate, the first substrate has a first surface away from the second substrate, the first surface has a first setting area and a first boundary area, the first boundary area is adjacent to the first setting area, the first polarizing plate is arranged in the first setting area, the second substrate has a second surface away from the first substrate, the second surface has a second setting area and a second boundary area, the second boundary area is adjacent to the second setting area, the second polarizing plate is arranged in the second setting area, the first polarizing plate is a lower polarizing plate, and the second polarizing plate is an upper polarizing plate; a carrier, disposed in the first boundary region of the first substrate; A shading member disposed on the carrier and at least a portion of the side edges of the shading member are irregular surfaces; and A backlight module, arranged corresponding to the display panel, the backlight module comprising: an optical film; a reflective device for reflecting light; and A back plate is used to carry the optical film and the reflective device. The back plate has a side wall. The side wall is lower than the first substrate and contacts the carrier.

2. The display device according to claim 1, characterized in that The shading element further extends to a side surface of the side wall away from the optical film.

3. The display device according to claim 2, characterized in that The shading element is attached to the side surface of the side wall.

4. The display device according to claim 1, characterized in that Also includes: A fixing member is disposed in the second setting area of ​​the second substrate and contacts the second polarizing plate, and the fixing member is extended and disposed on the side surfaces of the display panel and the backlight module.

5. The display device according to claim 4, characterized in that: The fixing member also covers a portion of the surface of the bottom of the back plate.

6. The display device according to claim 4, characterized in that: The shading element is also located between the side wall and the fixing element.

7. The display device according to claim 4, characterized in that: The shading element is in contact with the side wall and the fixing element.

8. The display device according to claim 1, characterized in that: The light density of the shading element is greater than or equal to 1 and less than or equal to 4.

9. The display device according to claim 1, characterized in that: The thickness of the shading element is greater than or equal to 1 / 12 of the thickness of the first polarizing plate, and less than or equal to the thickness of the first polarizing plate.

Images