TWI491955B - Liquid crystal display device - Google Patents

Description

Liquid crystal display device

The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having an adhesive layer.

As the popularity of smart mobile devices has gradually increased, the development of related display devices has become more diverse. In order to meet the market demand, in recent years, in addition to continuously improving the general specifications of display devices, such as brightness, color saturation, contrast, color uniformity, etc., the company also pays more attention to the appearance and design aesthetics of display devices to create Display of goods in market differences.

In the current smart mobile device market, borderless design has gradually become the mainstream of development. For a mobile device using a liquid crystal display panel, the upper surface of the liquid crystal display panel is generally aligned with a corresponding protective layer, and is adhered to each other through an adhesive layer, such as a photocurable adhesive layer. Moreover, in order to improve the quality of the display screen of the display device and reduce the proportion of light reflected on the surface of the protective layer, the photocurable adhesive layer is completely coated and covers the display area of the liquid crystal display panel. Since the protective layer has an opaque light-shielding layer to cover most of the non-display area, or the peripheral area, to expose the display area of the liquid crystal display panel, the step of hardening the photo-curable adhesive layer is performed on the liquid crystal display. When the back side of the panel is not attached to the polarizing plate, the photocurable adhesive layer may be first applied to the display surface of the liquid crystal display module, and then the protective layer is aligned with the liquid crystal display mode. The group then provides a light source, such as ultraviolet light, from the surface of the liquid crystal display panel to cause the light source to illuminate the adhesive layer, thereby causing the photocurable adhesive layer to crosslink and harden to effectively harden the photocurable adhesive layer corresponding to the light shielding layer.

However, the above display device still has its drawbacks. For example, since the peripheral region of the liquid crystal display panel is provided with a black matrix (BM) for shielding the peripheral circuits, the adhesive layer located in the display region and adjacent to the peripheral region is shielded by a black matrix for shielding the peripheral circuits. However, it is impossible to completely harden, and thus a situation in which color unevenness (mura) is generated around the display area of the display device. The term "color unevenness" refers to a block having a color unevenness in the display area. In addition, limited by the alignment precision between the protective layer and the liquid crystal display panel, a part of the black matrix may be hidden by the light shielding layer on the surface of the protective layer, and the black matrix and the light shielding layer are composed of different materials. The color difference causes a black matrix of a different color between the light shielding layer of the display device and the display area to be displayed, causing defects in the display device.

Therefore, in order to solve the above-mentioned deficiency, there is still a need to develop a display device to avoid the occurrence of color unevenness on the display surface of the display device and the fact that the black matrix is exposed.

In view of the above, an object of the present invention is to provide a liquid crystal display device which can reduce the color unevenness of the display surface of the liquid crystal display device and expose the black matrix by reducing the coverage area of the black matrix.

According to an embodiment of the present invention, there is provided a liquid crystal display device having a display area and a peripheral area surrounding the display area. The liquid crystal display device includes an array substrate including a substrate and a plurality of display pixel units arranged in an array on the display area of the substrate for displaying a picture and a plurality of auxiliary pixel units, and setting the periphery of the substrate In the area, each auxiliary pixel unit includes a pixel electrode for receiving the auxiliary signal, so that each auxiliary pixel unit displays the same color at the same time. Further, the liquid crystal display device also includes a counter substrate, and is disposed between the array substrate and the counter substrate with respect to the array substrate and the liquid crystal layer.

According to another embodiment of the present invention, there is provided a liquid crystal display device having a display area and a peripheral area surrounding the display area. The liquid crystal display device includes an array substrate, a substrate, a plurality of display pixel units, and is disposed on the substrate and located in the display area, and a plurality of auxiliary pixel units disposed on the substrate, wherein each auxiliary pixel unit includes a pixel An electrode for receiving an auxiliary signal such that each auxiliary pixel unit displays only the same color. The liquid crystal display device also includes a counter substrate, which is disposed between the array substrate and the counter substrate with respect to the array substrate and the liquid crystal layer.

The invention is characterized in that a plurality of auxiliary pixel units are provided on the first substrate, so that the adhesive layer between the protective layer and the opposite substrate can be smoothly hardened. Therefore, the adhesive layer between the display area and the edge of the light-shielding pattern does not cause a problem of color unevenness of the display device. In addition, since the pixel electrodes of the auxiliary pixel units can exhibit a black dark state under appropriate operating conditions, the light-shielding pattern above the outer side of the opposite substrate and the black-colored pixel electrode are no longer generated. Shading pattern and black moment in the prior art The situation of a different color.

Please refer to Figure 1 and Figure 2. 1 and 2 are schematic views of a liquid crystal display device according to a first embodiment of the present invention, wherein FIG. 1 and FIG. 2 are respectively a schematic plan view and a partial cross-sectional view of the liquid crystal display device. First, as shown in FIGS. 1 and 2, the liquid crystal display device 10 has a display area 20 and a peripheral area 21 surrounding the display area 20, and includes an array substrate 11, a counter substrate 13, a liquid crystal layer 50, and a sealant 52. The protective layer 56, the light shielding pattern 58, and the adhesive layer 60. The opposite substrate 13 is disposed relative to the array substrate 11, and the liquid crystal layer 50 is interposed between the array substrate 11 and the opposite substrate 13, and includes a plurality of liquid crystal molecules for changing the polarization direction of the light source. The sealant 52 is disposed between the array substrate 11 and the opposite substrate 13 in the peripheral region 21, and can be used not only to bond the array substrate 11 and the opposite substrate 13, but also to completely seal the liquid crystal layer 50 to the array substrate 11 and the opposite direction. Between the substrates 13. The array substrate 11 and the counter substrate 13 may be a thin film transistor array substrate and a color filter substrate, respectively, but are not limited thereto. Furthermore, the opposite substrate may not include a color filter or both a color filter and a touch substrate.

In addition, the protective layer 56 covers one of the outer sides of the opposite substrate 13 , and the adhesive layer 60 is disposed between the protective layer 56 and the opposite substrate 13 and fills the gap between the protective layer 56 and the opposite substrate 13 for use. The protective layer 56 is adhered to the opposite substrate 13 to enhance the visual effect of the screen displayed on the liquid crystal display device 10. The adhesive layer 60 may comprise a photocurable adhesive, such as a UV curable resin, or a visible light curable resin, such as: Sony Chemicals Corp. has introduced optical resins of the super view resin (SVR) series, but is not limited to this. It is worth mentioning that, since the adhesive layer 60 preferably has a refractive index of about 1.3 to 1.6, the liquid crystal display device having an air gap between the protective layer and the opposite substrate is bonded to the adhesive layer. In this embodiment, the adhesive layer 60 is used to fill the gap between the protective layer 56 and the opposite substrate 13 so that the light has a small refractive index change when passing through the gap between the opposite substrate 13 and the protective layer 56, thereby avoiding The light is greatly refracted and reflected, thereby reducing the visual difference of the display screen and improving the visual effect of the screen displayed by the liquid crystal display device 10. In this embodiment, the light shielding pattern 58 is disposed between the protective layer 56 and the opposite substrate 13 , and the light shielding pattern 58 is located in the peripheral region 21 and surrounds the display region 20 for shielding the array substrate 11 and the pair in the peripheral region 21 . The opaque element to the substrate 13, for example, a peripheral circuit. In other embodiments of the invention, the light shielding pattern may also be located on the outer side of the protective layer.

The opposite substrate 13 of the present embodiment includes a first substrate 54 and a black matrix 16 , wherein the black matrix 16 is located between the inner side surface of the first substrate 54 and the liquid crystal layer 50 , so that the light source and the peripheral circuit do not leak light from the region. Exposed. It should be noted that the black matrix 16 located in the peripheral region 21 is not a necessary feature element for realizing the liquid crystal display device 10 of the present invention, and the peripheral region of the liquid crystal display device of the present invention may not have a black matrix. The first substrate 54 may include a glass substrate, an acrylic substrate or other transparent substrate, and the black matrix 16 may comprise a light-impermeable polymer material or a metal material, but is not limited thereto. In addition, according to the embodiment, the black matrix 16 can also extend into the display area 20 on the first substrate 54 for shielding corresponding data lines, scan lines, common lines, and the like. This is a part well known to those skilled in the art and will not be added here. Narration. Moreover, according to different requirements, the counter substrate 13 can selectively include a common electrode 17 , and the common electrode 17 is disposed between the first substrate 54 and the liquid crystal layer 50 . Preferably, the common electrode 17 simultaneously covers the black matrix 16 located in the peripheral region 21 and the display region 20. An electrically insulating planarization layer may be disposed between the common electrode 17 and the first substrate 54 to enhance the flatness of the common electrode, but is not limited thereto. The above-described common electrode 17 may be disposed on the inner side surface of the first substrate 54, and may be disposed in the array substrate. However, whether the common electrode is disposed on the first substrate or the array substrate, it is preferably electrically connected to the common line in the array substrate.

Please refer to Figure 3 and refer to Figures 1 and 2 together. Fig. 3 is an enlarged schematic view showing a partial area of Fig. 2. As shown in FIGS. 1 to 3, the array substrate 11 includes a transparent second substrate 12, a plurality of scanning lines 30, a plurality of data lines 32, a plurality of common lines 34, a plurality of display pixel units 22a, and a plurality of The auxiliary pixel unit 18a and the peripheral circuit 14. The second substrate 12 may be a transparent substrate such as a glass substrate, an acrylic substrate, or a quartz substrate. Each of the scanning lines 30 and the common lines 34 are arranged on the second substrate 12 along the first direction, and the data lines 32 are arranged on the second substrate 12 along the second direction perpendicular to the first direction. Any two adjacent scan lines 30 and any two adjacent data lines 32 define a display pixel unit 22a or an auxiliary pixel unit 18a. The display pixel units 22a are arranged in an array on the inner side of the second substrate 12 in the display area 20, and are used to display a picture, and each display pixel unit 22a corresponds to a pixel of the display picture. The auxiliary pixel unit 18a and the peripheral circuit 14 are disposed on the inner side of the second substrate 12 in the peripheral area 21, and the peripheral circuit 14 is electrically connected to the data line, the scan line, and the common line in the display area 20. Bringing it into the peripheral area 21, and the peripheral circuit 14 overlaps with the black matrix 16 and the light-shielding pattern 58, so that the light-shielding pattern 58 and the black matrix can be used to shield the peripheral circuit 14. Further, the auxiliary pixel unit 18a is located between the peripheral circuit 14 and the display pixel unit 22a, and fills the space between the peripheral circuit 14 and the display pixel unit 22a, and partially overlaps the light shielding pattern 58. Each of the auxiliary pixel units 18a includes a first pixel electrode 25, and the present embodiment is configured to receive the auxiliary signal through the specific electrical connection so that the auxiliary pixel units 18a are at the same time. The same color is displayed, for example, black, or each auxiliary pixel unit 18a shows only the same color.

Further, each display pixel unit 22a includes a second pixel electrode 24, a storage capacitor 42, and a switching element 36, such as a thin film transistor element. The display pixel unit 22a can be electrically connected to the corresponding scan lines 30, the data lines 32, and the common lines 34. The scan lines 30 are used for transmitting scan signals, the data lines 32 are for transmitting data signals, and the common lines 34 are for transmitting common communication numbers. Further, if the switching element 36 is a thin film transistor element, it has a gate, a drain, and a source, and each gate is electrically connected to each of the scan lines 30, and each of the gates is electrically connected to each of the data lines 32. Each source is electrically connected to each of the second pixel electrodes 24. The storage capacitor 42 is electrically connected between the second pixel electrode 24 and the corresponding common line 34. Further, the first pixel electrode 25 and the second pixel electrode 24 are made of a light-transmitting conductive material to allow light to pass therethrough.

In the present embodiment, the liquid crystal display device 10 has a normally white mode, that is, when the liquid crystal display device 10 has not been driven, that is, when each data line 32 is When the voltage difference between each common line 34 is zero, a bright state is exhibited. Moreover, the first pixel electrodes 25 of the auxiliary pixel units 18a are electrically connected to the corresponding scan lines 30, for example, directly connected, so that the first pixel electrodes 25 can receive the corresponding scan lines 30. Scanning signal. When the liquid crystal display device 10 is driven, the common electrode 17 and the common line 34 are electrically connected to each other, for example, electrically connected to the ground, and the scanning signal of the scanning line 30 has a certain voltage, so the first pixel receiving the scanning signal is received. The electrode 25 can generate a voltage difference between the common line 34 and the liquid crystal molecules between them, so that each auxiliary pixel unit 18a displays black at the same time or each auxiliary pixel unit 18a only displays the same color, but Not limited to this. It should be noted that the first pixel electrode 25 of the embodiment is directly electrically connected to the corresponding scanning line 30, so that each auxiliary pixel unit 22a continuously displays black. Moreover, since the position of each of the first pixel electrodes 25 of the auxiliary pixel unit 18a is between the display pixel unit 22a and the peripheral circuit 14, and each of the first pixel electrodes 25 partially overlaps with the light shielding pattern 58, and is displayed. The color is similar to the color of the light-shielding pattern 58, so that the display surface of the display does not have a different color. In addition, it should be noted here that one of the structural features of the present invention is that each of the pixel electrodes 25 partially overlaps with the light-shielding pattern 58, so that the problem of the black matrix color difference in the prior art is eliminated.

Further, since the light-shielding pattern 58 has a opaque property, in order to cure and crosslink the adhesive layer 60, the light source needs to be irradiated to the adhesive layer 60 via the array substrate 11. According to the present embodiment, since the first pixel electrode 25 of the auxiliary pixel unit 18a on the array substrate 11 and the second pixel electrode 24 of the display pixel unit 22a are transparent electrodes, the outer surface of the second substrate 12 is outside. If the polarizer is not attached, the light source can be The film is finally irradiated to the adhesive layer 60 through the second substrate 12, the liquid crystal layer 50, and the first substrate 54, so that the adhesive layer 60 can be smoothly hardened and crosslinked. After the curing process, the adhesive layer 60 between the display region 20 and the edge of the light-shielding pattern 58 does not cause color unevenness. Moreover, since the black matrix 16 is not exposed to the light-shielding pattern 58, the problem that the black matrix 16 and the light-shielding pattern 58 are different from color on the display surface does not occur. It should be noted here that although some of the adhesive layer 60 is still blocked by the black matrix 16 described above and cannot be cured completely, since this area is shielded by the light-shielding pattern 58, there is no display on the display surface. Affected.

The above liquid crystal display device directly electrically connects the pixel electrodes 25 of the auxiliary pixel units 18a to the corresponding scanning lines 30 on the second substrate 12, so that the auxiliary pixel unit 18a can be rendered in the driving state of the display device. Dark state. However, according to other embodiments of the present invention, the auxiliary pixel unit can also exhibit a dark state in the driving state of the display device through different electrical connections. These embodiments will be described in detail below to enable those skilled in the art to understand the display principles of the present invention. In the following, the same or similar elements are denoted by the same reference numerals to facilitate the mutual comparison between the embodiments.

Please refer to Figure 4 and refer to Figure 2 at the same time. Fig. 4 is a partially enlarged plan view showing a partial area 31 of Fig. 2 according to a second embodiment of the present invention. The structure depicted in Figure 4 is substantially similar to the structure of Figure 3. As shown in FIG. 2 and FIG. 4, the liquid crystal display device of the first embodiment is different from the liquid crystal display device of the first embodiment in that it is normally black, that is, when each material is used. When the voltage difference between the line 32 and each common line 34 is zero, the liquid crystal display device assumes a dark state. Moreover, the auxiliary pixel units 18a located in the peripheral area 21 are electrically connected to the common lines 34 on the second substrate 12 such that the auxiliary pixel units 18a can receive the common communication numbers from the corresponding common lines 34. Since each common line 34 is directly electrically connected to the common electrode 17, there is no potential difference therebetween. When each display pixel unit 22a in the display area 20 is driven by the data line 32 and the scanning line 30, the respective pixel electrodes 25 electrically connected to the common line 34 are always maintained at a zero potential difference with the common electrode 17, so that The corresponding area of the display surface always shows a dark state. Similarly, since the position of each of the first pixel electrodes 25 of the auxiliary pixel unit 18a is between the display pixel unit 22a and the peripheral circuit 14, and each of the first pixel electrodes 25 partially overlaps with the light shielding pattern 58 and can A color very similar to the light-shielding pattern 58 is displayed, so that the display surface of the display does not have a black matrix color difference in the prior art. This feature is the same as the first embodiment described above, and will not be described here.

In each of the above embodiments, the auxiliary pixel unit 18a does not include the thin film transistor regardless of whether the liquid crystal display device is in the normal white mode or the normal black mode. However, according to other embodiments, the auxiliary pixel unit may also include a thin film transistor and a storage capacitor to drive the auxiliary pixel unit to display black using the thin film transistor. Please refer to FIG. 5, which is a partially enlarged schematic view showing a partial area 31 of FIG. 2 according to a third embodiment of the present invention. For the sake of brevity, similar elements and regions may be used in conjunction with reference to FIGS. 1 and 2 of the first embodiment, and the description thereof will not be repeated. As shown in FIG. 5, the liquid crystal display device of the first embodiment is different in that each auxiliary pixel unit 18a of the present embodiment further includes a switching element 38, such as a thin film transistor, and the first The pixel electrode 25 is not directly electrically connected to the scanning line 30 or the common line 34, and may have the same structure as the switching element 36 of the display pixel unit 22a, but is not limited thereto. Each of the thin film transistors 38 has a gate 44 electrically connected to each of the scan lines 30 and the drain electrodes 46, electrically connected to each of the data lines 32, and the source 48, electrically connected to each of the pixel electrodes 25, and each auxiliary signal It is a data signal from each data line 32. According to the embodiment, since the scan line 30 must be electrically connected to the gates 44 in the corresponding display pixel unit 22a and the auxiliary pixel unit 18a, the total number of scan lines 30 is preferably larger than that on the same line. The total number of element units 22a; similarly, since the data line 32 must be electrically connected to the corresponding display pixel unit 22a and the drain electrode 46 in the auxiliary pixel unit 18a, the total number of data lines 32 is preferably greater than the same The total number of display pixel units 22a in the column. In addition, the storage capacitor 62 in each auxiliary pixel unit 18a is electrically connected between each common line 34 and each source. In the present embodiment, since the liquid crystal display device needs to drive the auxiliary pixel unit 18a in addition to the display pixel unit 22a, the scanning line driving chip and the data line driving chip for driving the switching elements 36 and 38 are required. The output pads are additionally added to control the switching elements 38 of the auxiliary pixel unit 18a, thereby causing the auxiliary pixel unit 18a to display black or each of the auxiliary pixel units 18a to display only the same color.

It should be noted that the type of the liquid crystal display device of the present invention is not limited to the above types, and may also include a color filter on the active layer, a display panel, an active layer on the color filter, and a horizontal switch. A non-self-luminous display panel such as a display panel, a fringe field switching (FFS) display panel, or a three-dimensional display panel. Further, the position of the common electrode is not limited to being located on one side of the opposite substrate. For example, for an In-Plane Switching (IPS) display The panel, the common electrode may also be disposed on the array substrate on the same side as the auxiliary pixel unit or the display pixel unit.

In summary, the present invention provides an auxiliary pixel in the peripheral region of the liquid crystal display device. Since the light can penetrate the respective pixel electrodes in the auxiliary pixels, the adhesive layer between the protective layer and the opposite substrate can be smoothly hardened. Therefore, the adhesive layer between the display area and the edge of the light-shielding pattern does not cause color unevenness. In addition, since the pixel electrodes of the auxiliary pixel units can exhibit a black dark state under appropriate operating conditions, there is no longer a black matrix color difference between the light-shielding pattern and the black-exposed pixel electrode. .

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧Liquid crystal display device

11‧‧‧Array substrate

12‧‧‧second substrate

13‧‧‧ opposite substrate

14‧‧‧ peripheral circuits

16‧‧‧Black matrix

17‧‧‧Common electrode

18a‧‧‧Auxiliary pixel unit

20‧‧‧ display area

21‧‧‧The surrounding area

22a‧‧‧Display pixel unit

24‧‧‧Second pixel electrode

25‧‧‧ first pixel electrode

30‧‧‧ scan line

31‧‧‧Area

32‧‧‧Information line

34‧‧‧Common line

36‧‧‧Switching elements

38‧‧‧Switching elements

42‧‧‧ Storage Capacitor

44‧‧‧ gate

46‧‧‧汲polar

48‧‧‧ source

50‧‧‧Liquid layer

52‧‧‧Box glue

54‧‧‧First substrate

56‧‧‧Protective layer

58‧‧‧ shading pattern

60‧‧‧Adhesive layer

62‧‧‧ Storage Capacitor

1 is a partial cross-sectional view showing a liquid crystal display device according to a first embodiment of the present invention.

2 is a top plan view of a liquid crystal display device according to a first embodiment of the present invention.

Fig. 3 is an enlarged schematic view showing a partial area of Fig. 2 according to a first embodiment of the present invention.

4 to 5 are partial enlarged views of the liquid crystal display device of Fig. 2 according to the second embodiment and the third embodiment, respectively.

10‧‧‧Liquid crystal display device

11‧‧‧Array substrate

12‧‧‧second substrate

13‧‧‧ opposite substrate

14‧‧‧ peripheral circuits

16‧‧‧Black matrix

17‧‧‧Common electrode

18a‧‧‧Auxiliary pixel unit

20‧‧‧ display area

21‧‧‧The surrounding area

22a‧‧‧Display pixel unit

50‧‧‧Liquid layer

52‧‧‧Box glue

54‧‧‧First substrate

56‧‧‧Protective layer

58‧‧‧ shading pattern

60‧‧‧Adhesive layer

Claims (15)

A liquid crystal display device has a display area and a peripheral area surrounding the display area. The liquid crystal display device comprises: an array substrate comprising: a substrate; a plurality of display pixel units arranged on the substrate in an array And located in the display area for displaying a picture; and a plurality of auxiliary pixel units disposed on the substrate and located in the peripheral area, and each of the auxiliary pixel units includes a pixel electrode for receiving An auxiliary signal, wherein each of the auxiliary pixel units displays a same color at the same time; a pair of substrates disposed relative to the array substrate; a liquid crystal layer disposed between the array substrate and the opposite substrate; a scanning line electrically connected to the display pixel units and configured to transmit a scanning signal; a plurality of data lines electrically connected to the display pixel units for transmitting a data signal; and a plurality of a common line for transmitting a total communication number, wherein the pixel electrodes are electrically connected to the scan lines, and each of the auxiliary signals is separately for each scan number. The liquid crystal display device of claim 1, wherein the liquid crystal display device has a positive value when a voltage difference between each of the data lines and each of the common lines is zero. Normally white mode. The liquid crystal display device of claim 1, further comprising: a protective layer covering one of the outer sides of the opposite substrate; and an adhesive layer disposed between the protective layer and the opposite substrate. The liquid crystal display device of claim 3, further comprising a light shielding pattern disposed between the protective layer and the opposite substrate, wherein the light shielding pattern is located in the peripheral region and surrounds the display region, and Each of the pixel electrodes partially overlaps the light shielding pattern. The liquid crystal display device of claim 4, wherein the opposite substrate comprises a black matrix disposed between the protective layer and the liquid crystal layer in the peripheral region, and the light shielding pattern covers the black matrix. The liquid crystal display device of claim 3, wherein the adhesive layer covers the opposite substrate in the display region and overlaps the pixel electrodes. The liquid crystal display device of claim 3, wherein the adhesive layer comprises an ultraviolet curable resin or a visible light curable resin. The liquid crystal display device of claim 1, wherein the array substrate further comprises: A peripheral circuit is disposed in the peripheral region, wherein the auxiliary pixel units are disposed between the peripheral circuit and the display pixel units. The liquid crystal display device of claim 1, wherein the same color is black. A liquid crystal display device has a display area and a peripheral area surrounding the display area. The liquid crystal display device comprises: an array substrate, comprising: a substrate; a plurality of display pixel units disposed on the substrate and located in the display area And a plurality of auxiliary pixel units disposed on the substrate, wherein each of the auxiliary pixel units includes a pixel electrode for receiving an auxiliary signal, so that each of the auxiliary pixel units displays only one same color a pair of substrates disposed relative to the array substrate; a liquid crystal layer disposed between the array substrate and the opposite substrate; and a plurality of scan lines electrically connected to the display pixel units for respectively transmitting a scanning signal; a plurality of data lines electrically connected to the display pixel units for transmitting a data signal; and a plurality of common lines for transmitting a total communication number, wherein the pixel electrodes are constant The scan lines are electrically connected, and each of the auxiliary signals is separately for each scan Signal. The liquid crystal display device of claim 10, further comprising: a protective layer covering one of the outer sides of the opposite substrate; and an adhesive layer disposed between the protective layer and the opposite substrate. The liquid crystal display device of claim 11, further comprising a light shielding pattern disposed between the protective layer and the opposite substrate, wherein the light shielding pattern is located in the peripheral region and surrounds the display region, and Each of the pixel electrodes partially overlaps the light shielding pattern. The liquid crystal display device of claim 12, wherein the opposite substrate comprises a black matrix disposed between the protective layer and the liquid crystal layer in the peripheral region, and the light shielding pattern covers the black matrix. The liquid crystal display device of claim 11, wherein the adhesive layer covers the opposite substrate in the display region and overlaps the pixel electrodes. The liquid crystal display device of claim 10, wherein the same color is black.