TWI679479B - Display device - Google Patents

Abstract

A display device includes a display panel, a first light-shielding layer, a second light-shielding layer, a cover plate, and a colloid. The first light-shielding layer is disposed on the display panel. The second light shielding layer is disposed between the display panel and the first light shielding layer. A cover plate is disposed on the colloid and the first light-shielding layer. The first light-shielding layer has a first side surface, and the second light-shielding layer has a second side surface. The first side surface is away from the edge of the cover plate with respect to the second side surface, and the shape of the first side surface is flat relative to the shape of the second side surface. The gel is disposed between the display panel and the cover plate.

Description

Display device

The disclosure relates to a display device.

Among various electronic products of household appliances, display devices have been widely used to output images or operate menus. The display device can be assembled through multiple components. For example, a liquid crystal display device may include a backlight module, an array substrate, and a color filter layer substrate that are sequentially stacked. After the sequentially stacked backlight module, the array substrate and the color filter layer substrate are fixed, a cover plate can be covered on the stacked structure, and a light shielding layer can be arranged between the cover plate and the stacked structure.

However, during the assembly process, if there are undulations between the two surfaces to be bonded during the bonding phase, the bonding may be uneven, and some layers will face the problem of stress concentration. When the stress is concentrated at a local position of the layer body, the display image of the display device may be uneven, such as streaks, or uneven brightness. Therefore, how to solve the above problems has become one of the important topics in related fields.

An embodiment of the present disclosure provides a display device, including It includes a display panel, a first light-shielding layer, a second light-shielding layer, a cover plate and a colloid. The first light-shielding layer is disposed on the display panel. The second light shielding layer is disposed between the display panel and the first light shielding layer. A cover plate is disposed on the colloid and the first light-shielding layer. The first light-shielding layer has a first side surface, and the second light-shielding layer has a second side surface. The first side surface is away from the edge of the cover plate with respect to the second side surface, and the shape of the first side surface is flat relative to the shape of the second side surface. The gel is disposed between the display panel and the cover plate.

In some embodiments, the second light-shielding layer has a protruding portion protruding from the second light-shielding layer toward the colloid. The protruding portion defines a recessed portion therebetween, and the colloid fills the recessed portion.

In some embodiments, the depression depth of the depression defined by the protrusion is substantially between 400 micrometers and 500 micrometers.

In some embodiments, the horizontal distance between the first side surface of the first light-shielding layer and the protruding portion is substantially between 750 μm and 1050 μm.

In some embodiments, each of the protrusions is triangular, arcuate, trapezoidal, or Mt. Fuji.

In some embodiments, the second light-shielding layer has protrusions protruding from the second light-shielding layer toward the colloid, and the protrusions are arranged in a direction, and the arrangement is arranged continuously or periodically.

In some embodiments, a part of the gel is located between the display panel and the first light-shielding layer, and a part of the gel is in contact with the second side surface of the second light-shielding layer.

In some embodiments, a part of the colloid and the second side surface An interface is formed, and the shape of the interface is wavy, jagged, or a combination thereof.

In some embodiments, the first light-shielding layer has a lower surface, the lower surface faces the display panel, and is located between the first side surface and the second side surface.

In some embodiments, the thickness of each of the first light-shielding layer and the second light-shielding layer is between 6 microns and 9 microns.

With the above configuration, when the cover plate, the first light-shielding layer, and the second light-shielding layer are bonded to the display panel through the gel, the gel will begin to be squeezed due to contact with the display panel, and the squeezed gel It can be filled into the recessed portion of the second light-shielding layer, thereby reducing the stress applied to the display panel by the colloid, so as to prevent the display panel from displaying unevenly.

100A, 100B, 100C, 100D, 100E‧‧‧ display devices

110‧‧‧display panel

111‧‧‧ backlight module

112‧‧‧first polarizing layer

113‧‧‧Array substrate

114‧‧‧color filter substrate

115‧‧‧Second polarizing layer

116‧‧‧Shading body

120‧‧‧ Colloid

130‧‧‧first light-shielding layer

140‧‧‧second light-shielding layer

142‧‧‧ protrusion

144‧‧‧ Depression

150‧‧‧ Cover

B‧‧‧ area

D1, D3, D5, D7, D9‧‧‧ Depression depth

D2, D4, D6, D8, D10‧‧‧horizontal distance

E‧‧‧Edge

SB‧‧‧ lower surface

SW1‧‧‧First side surface

SW2‧‧‧Second side surface

T1, T2‧‧‧thickness

FIG. 1A is a schematic side view of a display device according to a first embodiment of the present disclosure.

FIG. 1B is an enlarged schematic view of a region B in FIG. 1A.

FIG. 1C is a schematic front view of the second light-shielding layer, the first light-shielding layer, and the cover plate viewed from the display panel of FIG. 1B.

FIG. 2 is a diagram illustrating the relative positional relationship between the first light-shielding layer, the second light-shielding layer and the cover plate of the display device according to the second embodiment of the present disclosure. The viewing angle of FIG.

FIG. 3 illustrates the relative positional relationship between the first light-shielding layer, the second light-shielding layer, and the cover plate of the display device according to the third embodiment of the present disclosure. The viewing angle of FIG. 2 is the same as that of FIG. 1C.

FIG. 4 is a diagram illustrating the relative positional relationship between the first light-shielding layer, the second light-shielding layer, and the cover plate of the display device according to the fourth embodiment of the present disclosure. The viewing angle of FIG. 2 is the same as that of FIG. 1C.

FIG. 5 is a diagram illustrating a relative positional relationship between a first light-shielding layer, a second light-shielding layer, and a cover plate of a display device according to a fifth embodiment of the present disclosure. The viewing angle of FIG. 2 is the same as that of FIG. 1C.

Several embodiments of the present disclosure will be disclosed graphically below. For clarity, many practical details will be explained in the following description. However, it should be understood that these practical details should not be used to limit the disclosure. That is to say, in the embodiments of the disclosure, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and components will be shown in the drawings in a simple and schematic manner.

When an element is referred to as being "on", it can generally mean that the element is directly on the other element, or that other elements are present in the two. Conversely, when an element is called "directly in" another element, it cannot have other elements in the middle. In this article, the terms first, second, third, etc. are used to describe various elements, components, regions, layers, and / or blocks. These terms are used to identify single elements, components, Area, layer, and / or block. Therefore, a first element, component, region, layer, and / or block in the following may also be referred to as a second element, component, region, layer, and / or block without departing from the original meaning of the disclosure.

As used herein, "about" or "substantially" includes the stated value and the The average value within a range of acceptable deviations for a particular value determined by one of ordinary skill in the art, taking into account the measurement in question and the particular number of measurement-related errors (ie, the limits of the measurement system). For example, "about" or "substantially" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%.

Please refer to FIG. 1A, which is a schematic side view of a display device 100A according to a first embodiment of the present disclosure. The display device 100A may include a display panel 110, a colloid 120, a first light-shielding layer 130, a second light-shielding layer 140, and a cover plate 150.

The display panel 110 includes a backlight module 111, a first polarizing layer 112, an array substrate 113, a color filter layer substrate 114, and a second polarizing layer 115, which are sequentially stacked. The first polarizing layer 112 is connected to the backlight module 111 and is located between the backlight module 111 and the array substrate 113. The backlight module 111 can be used to emit light toward the first polarizing layer 112 as a light source of the display panel 110. The array substrate 113 may include a thin film transistor and a pixel electrode (not shown), wherein the thin film transistor is electrically connected to the pixel electrode to apply a voltage to the pixel electrode through the thin film transistor, thereby coupling out an electric field. The color filter layer substrate 114 is disposed on the array substrate 113 and may include color resist layers of different colors, such as a red color resist layer, a green color resist layer, and a blue color resist layer, so that light emitted from the backlight module 111 is emitted. After passing through the color filter layer substrate 114, corresponding colors may be carried, so that the display panel 110 can provide an image. In addition, the second polarizing layer 115 may be connected to the color filter layer substrate 114.

The display panel 110 may further include a display medium layer (not shown) and a light shielding body 116 disposed between the array substrate 113 and the color filter layer substrate 114. The display medium layer has a display medium such as liquid crystal molecules. Display medium The display medium can be controlled by the electric field coupled by the pixel electrodes of the array substrate 113, so as to control whether the upward traveling light enters the color filter layer substrate 114. The light-shielding body 116 may be a layer having a light-shielding property, such as a black matrix or a photoresist, and may be disposed on the display medium layer so as to separate and block various color resist layers in the color filter layer substrate 114 and shield Visibility of layers or components below it.

The colloid 120 is disposed on the display panel 110, and may be disposed on the second polarizing layer 115 of the display panel 110, for example. The colloid 120 may have translucency, for example, the colloid 120 may be an optical glue. The cover plate 150 is disposed on the display panel 110 and can be connected to the display panel 110 through the viscosity of the gel 120. That is, the colloid 120 can be disposed between the display panel 110 and the cover plate 150 to fix the cover plate 150 on the display panel 110. The cover plate 150 can be a light-transmitting substrate, such as a glass substrate, and is used to protect the layer body located below it, for example, it can provide resistance to abrasion, impact, or scratches.

The first light shielding layer 130 and the second light shielding layer 140 are disposed on the display panel 110, and the second light shielding layer 140 is disposed between the display panel 110 and the first light shielding layer 130. Specifically, the first light-shielding layer 130 and the second light-shielding layer 140 are located between the colloid 120 and the cover plate 150, and the second light-shielding layer 140 and the cover plate 150 can be separated from each other through the first light-shielding layer 130. The second light shielding layer 140 is closer to the display panel 110 than the first light shielding layer 130.

During the manufacturing process of the display device 100A, before the colloid 120, the first light-shielding layer 130, the second light-shielding layer 140, and the cover 150 are not yet disposed on the display panel 110, the first light-shielding layer 130 and the second light-shielding layer 140 may be first It is formed on the surface of the cover plate 150 (take FIG. 1A as an example, that is, it is formed on the cover plate 150 and faces the colloid 120 Then, the cover 150 with the first light-shielding layer 130 and the second light-shielding layer 140 formed on the surface is adhered to the display panel 110 through the gel 120.

In some embodiments, the first light-shielding layer 130 and the second light-shielding layer 140 may be formed by printing ink (dark ink or black ink) on the surface of the cover plate 150. For example, a screen plate may be used first. The ink is placed on the cover 150 and the screen is configured, and then the ink is squeezed with a doctor blade, so that the ink can be printed on the surface of the cover 150 through the ink holes of the screen to form a light-shielding layer. During the printing ink process, the first light-shielding layer 130 and the second light-shielding layer 140 may be sequentially formed. For example, a first light-shielding layer 130 is formed on the surface of the cover plate 150, and then a first light-shielding layer 130 is formed on the first light-shielding layer 130. Two light-shielding layers 140. In some embodiments, the thicknesses T1 and T2 of each of the first light-shielding layer 130 and the second light-shielding layer 140 may be substantially between 6 microns and 9 microns, so that the first light-shielding layer 130 and the second light-shielding layer 140 may Provides adequate shading. In some embodiments, an identifiable boundary exists between the stacked first light-shielding layer 130 and the second light-shielding layer 140.

During the bonding process, the colloid 120 may be disposed on the cover 150 or the second polarizing layer 115 of the display panel 110. For example, the colloid 120 may be disposed on the first light-shielding layer 130, the second light-shielding layer 140, and the cover. 150, and the first light-shielding layer 130, the second light-shielding layer 140, and the cover plate 150 are glued to the display panel 110 together with the colloid 120.

In addition, during the bonding process, if the colloid 120 has a local topographic relationship on the structure surface (for example, the light-shielding layer forms undulations on the surface of the cover plate 150), the display panel 110 may be locally squeezed, which may cause A stress concentration phenomenon is caused in a local area of the display panel. Once the stress concentration phenomenon occurs, the display panel 110 may cause a problem of uneven display, such as uneven brightness. Even or streaks occur. In this regard, the edge of the second light-shielding layer 140 may be printed as a geometric pattern with a protruding shape to avoid stress concentration, which will be further described below.

Please see FIG. 1A, FIG. 1B, and FIG. 1C at the same time. FIG. 1B is an enlarged schematic view of area B in FIG. 1A, and FIG. 1C is a view from the display panel 110 in FIG. 1B to the second light-shielding layer 140. 3, a front view of the first light-shielding layer 130 and the cover plate 150. In order not to make the drawing too complicated, the colloid 120 in FIG. 1B is not shown in FIG. 1C.

The first light shielding layer 130 has a first side surface SW1, and the second light shielding layer 140 has a second side surface SW2. The first side surface SW1 is away from the edge E of the cover plate 150 with respect to the second side surface SW2 (the position of the edge E can be as shown in FIG. 1A), and the first side surface SW1 and the second side surface SW2 can contact the colloid 120. The second side surface SW2 of the second light-shielding layer 140 may be designed to have an undulating shape, wherein the undulating direction of the undulating second side surface SW2 is a horizontal direction parallel to FIG. 1A and FIG. 1B. In this disclosure, “the second side surface SW2 of the second light-shielding layer 140 has an undulating shape” means that the second side surface SW2 of the second light-shielding layer 140 is opposite to the first side of the first light-shielding layer 130. The surface SW1 has a large fluctuation in the horizontal direction, or the shape of the first side surface SW1 of the first light-shielding layer 130 is flat relative to the shape of the second side surface SW2 of the second light-shielding layer 140. .

Specifically, the second light-shielding layer 140 may have a protruding portion 142. The protruding portion 142 protrudes from the second light-shielding layer 140 toward the colloid 120, and each pair of adjacent protruding portions defines a recessed portion 144 therebetween. Taking FIG. 1C as an example, the protrusions 142 are each arc-shaped and follow a straight line direction (for example, the longitudinal direction of FIG. 1C). Direction), wherein the protrusions 142 may be arranged continuously. Here, the “continuous arrangement” refers to the arrangement of the protruding portions 142 such that the boundary between adjacent protruding portions 142 is the deepest portion of the recessed portion 144. By arranging the arc-shaped protrusions 142 in a straight line direction, the second side surface SW2 of the second light-shielding layer 140 can have a wavy appearance.

The second light-shielding layer 140 having the protruding portion 142 may be formed at a printing ink stage. Specifically, a layered body, such as an emulsion, may be disposed on the screen plate used when forming the second light-shielding layer 140, so that the ink penetrating holes of one portion of the screen plate are impermeable to ink, while the other portion of the screen plate is transparent. The ink holes can still pass through the ink, and these ink-permeable holes can be used to define the pattern shape of the second light-shielding layer 140, so that the second light-shielding layer 140 exhibits a wave with a protruding portion 142 after the printing of the ink is completed.状 Looks.

During the bonding process, when the colloid 120 disposed on the cover plate 150 contacts the display panel 110, the colloid 120 will begin to be squeezed. Through the above configuration, the squeezed gel 120 can fill the second light-shielding layer 140. Inside the recessed portion 144. That is, the recessed portion 144 of the second light-shielding layer 140 can be used to receive the gel 120 (or squeezed gel 120), thereby reducing the stress applied to the display panel by the gel 120 to prevent uneven display problems. On the other hand, the colloid 120 filled into the recessed portion 144 will form an interface with the second side surface SW2 of the second light-shielding layer 140, and this interface will conform to the second side surface SW2, that is, the formed interface It will also have a wavy appearance.

The first light-shielding layer 130 and the second light-shielding layer 140 may jointly form a step to facilitate guiding the colloid 120 to fill the recessed portion 144 of the second light-shielding layer 140. Specifically, the first light-shielding layer 130 may have a lower surface facing the display panel 110. SB, and the lower surface SB is located between the first side surface SW1 and the second side surface SW2, so that there is a step between the first light shielding layer 130 and the second light shielding layer 140. Through this step, when a part of the colloid 120 located between the display panel 110 and the cover plate 150 is squeezed, the part of the colloid 120 can be squeezed to the display panel 110 and the first light shielding along the terrain of the step. Between the layers 130 and then filled into the recessed portion 144 of the second light-shielding layer 140 to contact the second side surface SW2 of the second light-shielding layer 140. On the other hand, through the step formed between the first light-shielding layer 130 and the second light-shielding layer 140, the covering force of the colloid 120 on the first light-shielding layer 130 and the second light-shielding layer 140 can also be increased.

In addition, the area of the second light-shielding layer 140 can be adjusted so that the second light-shielding layer 140 can still provide a sufficient light-shielding effect, that is, the second light-shielding layer 140 does not cause insufficient light shielding due to the formation of the recessed portion 144. Specifically, the recessed depth D1 of the recessed portion 144 defined by the protruding portion 142 of the second light-shielding layer 140 may be substantially between 400 μm and 500 μm, and the protruding portion 142 of the second light-shielding layer 140 and the first The horizontal distance D2 between the first side surface SW1 of the light-shielding layer 130 may be substantially between 750 micrometers and 1050 micrometers. The protruding portion 142 of the second light-shielding layer 140 and the first The horizontal distance between the side surfaces SW1 increases the area of the second light shielding layer 140. With the above-mentioned depth and distance configuration, the area of the second light-shielding layer 140 can be adjusted so that there is a sufficient overlapping area between the first light-shielding layer 130 and the second light-shielding layer 140 to provide a light-shielding effect.

Although the second light-shielding layer 140 in this embodiment reduces the stress applied by the gel 120 to the display panel 110 through the wave shape, the disclosure is not limited thereto. In other embodiments, the first The shape of the second light-shielding layer 140 is different. For example, when the properties (density, viscosity, or other properties) of the colloid 120 are changed, the shape of the second light-shielding layer 140 can be adjusted so that the colloid 120 can still fill the recess 144. In order to maintain the effect of reducing the stress applied to the display panel 110 by the colloid 120, thereby preventing the problem of uneven display, please see the following description again.

Please refer to FIG. 2. FIG. 2 is a diagram illustrating a relative positional relationship between the first light-shielding layer 130, the second light-shielding layer 140, and the cover plate 150 of the display device 100B according to the second embodiment of the present disclosure. The angle of view is the same as in Figure 1C. At least one difference between this embodiment and the first embodiment is that each of the protruding portions 142 of the second light-shielding layer 140 of this embodiment has a shape of Mount Fuji. In the disclosure, the “mountain Fuji shape” means that each of the protruding portions 142 may be formed by a pair of curved side edges and a linear top edge located between the side edges.

The mountain-shaped protrusions 142 may be continuously arranged along a straight line direction (for example, the longitudinal direction in FIG. 2), and each pair of adjacent protrusions 142 defines a depression 144 therebetween. Here, the “continuous arrangement” refers to the arrangement of the protruding portions 142 such that the boundary between adjacent protruding portions 142 is the deepest portion of the recessed portion 144.

The continuously arranged Fuji-shaped protrusions 142 can also make the second side surface SW2 of the second light-shielding layer 140 have a wavy appearance. In this regard, both the first embodiment and the second embodiment describe the appearance of the second side surface SW2 of the second light-shielding layer 140 in a "wavy shape". The “shape” is not exactly the same, however, the “wavy shape” may refer to a continuous undulating appearance formed by the second side surface SW2 of the second light-shielding layer 140 by arranging the protruding portions 142 in a straight line direction. By Fuji Yamagata The recessed depth D3 of the recessed portion 144 defined by the protruding portion 142 can be substantially between 400 μm and 500 μm, and the level of the Fuji-shaped protruding portion 142 and the first side surface SW1 of the first light shielding layer 130 is at a level The distance D4 may be substantially between 750 microns and 1050 microns. In addition, since the second side surface SW2 of the second light-shielding layer 140 in this embodiment has a wavy appearance, the colloids (such as the gel 120 in FIG. 1B) filled in the recessed portions 144 of the second light-shielding layer 140 and The interface formed by the second side surface SW2 of the second light-shielding layer 140 also has a wavy appearance.

Please refer to FIG. 3. FIG. 3 is a diagram illustrating a relative positional relationship between the first light-shielding layer 130, the second light-shielding layer 140, and the cover plate 150 of the display device 100C according to the third embodiment of the present disclosure. The angle of view is the same as in Figure 1C. At least one difference between this embodiment and the first embodiment is that each of the protruding portions 142 of the second light-shielding layer 140 of this embodiment is trapezoidal.

The trapezoidal protrusions 142 may be periodically arranged along a straight line direction (for example, the longitudinal direction in FIG. 3), and each pair of adjacent protrusions 142 defines a recessed portion 144 therebetween. Here, the "periodic arrangement" refers to that each pair of adjacent protruding portions 142 are separated by a distance, so that the deepest position of the recessed portion 144 will be a linear outline.

Through the trapezoidal protrusions 142 that are periodically arranged, the second side surface SW2 of the second light-shielding layer 140 can have a jagged appearance. The recessed depth D5 of the recessed portion 144 defined by the trapezoidal protruding portion 142 may be substantially between 400 μm and 500 μm. The trapezoidal protruding portion 142 is spaced from the first side surface SW1 of the first light-shielding layer 130. The horizontal distance D6 may be substantially between 750 microns and 1050 microns. In addition, since the second light-shielding layer of this embodiment mode The second side surface SW2 of 140 has a zigzag appearance, so the colloid (such as the gel 120 in FIG. 1B) filled into the recessed portion 144 of the second light shielding layer 140 and the second side surface SW2 of the second light shielding layer 140 The interface formed will also have a jagged appearance.

Please refer to FIG. 4. FIG. 4 is a diagram illustrating a relative positional relationship between the first light-shielding layer 130, the second light-shielding layer 140, and the cover plate 150 of the display device 100D according to the fourth embodiment of the present disclosure. The angle of view is the same as in Figure 1C. At least one difference between this embodiment and the first embodiment is that each of the protruding portions 142 of the second light-shielding layer 140 of this embodiment is triangular.

The triangular protruding portions 142 may be continuously arranged along a straight line direction (for example, the longitudinal direction in FIG. 4), and each pair of adjacent protruding portions 142 defines a recessed portion 144 therebetween. Here, the “continuous arrangement” refers to the arrangement of the protruding portions 142 such that the boundary between adjacent protruding portions 142 is the deepest portion of the recessed portion 144.

Through the trapezoidal protrusions 142 that are periodically arranged, the second side surface SW2 of the second light-shielding layer 140 can have a jagged appearance. The recessed depth D7 of the recessed portion 144 defined by the triangular protruding portion 142 may be substantially between 400 μm and 500 μm, and the triangular protruding portion 142 is spaced from the first side surface SW1 of the first light-shielding layer 130. The horizontal distance D8 may be substantially between 750 microns and 1050 microns. In addition, since the second side surface SW2 of the second light-shielding layer 140 in this embodiment has a jagged appearance, the colloid (such as the gel 120 in FIG. 1B) filled in the recessed portion 144 of the second light-shielding layer 140 and The interface formed by the second side surface SW2 of the second light-shielding layer 140 will also have a jagged appearance.

Please refer to FIG. 5. FIG. 5 is a diagram illustrating a relative position relationship between the first light-shielding layer 130, the second light-shielding layer 140, and the cover plate 150 of the display device 100E according to the fifth embodiment of the present disclosure. The angle of view is the same as in Figure 1C. At least one point of difference between this embodiment and the first embodiment is that the protruding portions 142 of the second light-shielding layer 140 of this embodiment have different arc shapes (different from the arc shape of the protruding portions 142 of the first embodiment). Moreover, the arc-shaped protruding portion 142 may define a concave portion 144 whose contour is also arc-shaped. Through the arc-shaped recessed portion 144, a space for accommodating a colloid (such as the colloid 120 in FIG. 1B) can be increased. As described above, the area of the second light-shielding layer 140 may be further adjusted according to the increase in the volume of the recessed portion 144 so that the second light-shielding layer 140 does not cause insufficient light shielding due to the increase in the volume of the recessed portion 144. The recessed depth D9 of the recessed portion 144 defined by the protruding portion 142 of the second light-shielding layer 140 may be substantially between 400 micrometers and 500 micrometers. The horizontal distance D10 of the first side surface SW1 may be substantially between 750 μm and 1050 μm. In addition, since the protruding portion 142 of the second light-shielding layer 140 of this embodiment has an arc shape, the second side surface SW2 of the second light-shielding layer 140 has a wavy appearance.

The shape and arrangement of the protruding portions in the above embodiments can be changed or adjusted to meet different requirements. For example, the protrusions arranged continuously in FIG. 1B may be changed to be arranged periodically. Alternatively, the protruding portion in FIG. 1B may be changed into another arc shape, so that the second side surface of the second light shielding layer in FIG. 1B may be changed into another wavy appearance.

In summary, the display device of the present disclosure includes a display panel, a first light-shielding layer, a second light-shielding layer, a cover plate, and a gel. First light-shielding layer and The second light-shielding layer may be formed on the surface of the cover plate, wherein the second light-shielding layer has a protruding portion, and adjacent protruding portions may define a recessed portion therebetween. The gel can be disposed between the display panel and the cover plate, so that the cover plate can be adhered to the display panel through the gel. During the bonding process, when the colloid disposed on the cover plate contacts the display panel, the colloid will start to be squeezed, and the squeezed gel can fill the recess of the second light-shielding layer, thereby reducing the application of the colloid to The stress of the display panel to prevent the display panel from displaying unevenly.

Although the content of this disclosure has been disclosed above in various ways, it is not intended to limit the content of this disclosure. Any person skilled in this art can make various changes and decorations without departing from the spirit and scope of this disclosure. The scope of protection of this disclosure shall be determined by the scope of the appended patent application.

Claims (10)

A display device includes: a display panel; a first light-shielding layer disposed on the display panel; a second light-shielding layer disposed between the display panel and the first light-shielding layer; and a cover plate disposed on On the first light-shielding layer, wherein the first light-shielding layer has a first side surface, the second light-shielding layer has a second side surface, and the first side surface is away from an edge of the cover plate with respect to the second side surface. And the shape of the first side surface is flat relative to the shape of the second side surface; and a gel is disposed between the display panel and the cover plate. The display device according to claim 1, wherein the second light-shielding layer has at least a pair of protrusions protruding from the second light-shielding layer toward the colloid, and the pair of protrusions defines a recessed portion therebetween, and The colloid is filled into the depression. The display device according to claim 2, wherein a recessed depth of the recessed portion defined by the pair of protruding portions is substantially between 400 micrometers and 500 micrometers. The display device according to claim 2, wherein a horizontal distance between the first side surface of the first light-shielding layer and one of the pair of protrusions is substantially between 750 micrometers and 1050 micrometers. The display device according to claim 2, wherein the pair of protrusions are each triangular, curved, trapezoidal, or Mt. Fuji. The display device according to claim 1, wherein the second light-shielding layer has a plurality of protrusions protruding from the second light-shielding layer toward the colloid, and the protrusions are arranged in a direction, and the arrangement is continuous Arrange or periodically. The display device according to claim 1, wherein a part of the colloid is located between the display panel and the first light-shielding layer, and the part of the colloid is in contact with the second side surface of the second light-shielding layer. The display device according to claim 7, wherein the part of the colloid forms an interface with the second side surface, and the interface is wavy, jagged, or a combination thereof. The display device according to claim 1, wherein the first light-shielding layer has a lower surface, the lower surface faces the display panel, and is located between the first side surface and the second side surface. The display device according to claim 1, wherein the thickness of each of the first light shielding layer and the second light shielding layer is substantially between 6 microns and 9 microns.