Display device

Abstract

The application discloses a display device, which comprises a first substrate, a second substrate, a first polarizer, a second polarizer, a frame glue layer, a liquid crystal layer, an optical brightening film, a pixel structure layer, a circuit element layer, a signal wire layer, a first light shielding pattern, a second light shielding pattern and a third light shielding pattern. The context display area and the display area of the display device are each provided with at least one of the first polarizer and the second polarizer. The first light shielding pattern, the frame glue layer and the signal wire layer are arranged in the first sub-area. The second light shielding pattern, the liquid crystal layer and the circuit element layer are arranged in the second sub-area. The third light shielding pattern, the liquid crystal layer and the pixel structure layer are arranged in the third sub-area. The display area is provided with the third light shielding pattern, the liquid crystal layer, the pixel structure layer and the optical brightening film. The transmittances of the first sub-area, the second sub-area, the third sub-area and the display area are equal to each other.

Description

Technical Field

[0001] This invention relates to a display technology, and more particularly to a display device. Background Technology

[0002] With the advancement of digital technology and related hardware and software, immersive experiences have successfully attracted many users. For example, RVs create an immersive atmosphere by setting ambient lighting around their display screens. However, existing LCD displays exhibit dark areas in the ambient lighting area. The reason for this is that, to avoid the polarizer shrinking under high temperatures, the polarizer size needs to be larger than the screen display area. This causes the polarizer to extend into the ambient lighting area, where the display method differs from the main display area, resulting in dark areas. Furthermore, to shield against light leakage caused by poor alignment of the liquid crystal layer at the edges of the display area and by the placement of circuitry and frame adhesive, a light-shielding layer is placed at the boundary between the display area and the ambient lighting area, creating a black area and degrading the continuity of the image between the display area and the ambient lighting area. Summary of the Invention

[0003] The present invention provides a display device in which the image continuity of multiple display areas is better.

[0004] The display device of the present invention includes a display area and a context display area outside the display area. The display device includes a first substrate, a second substrate, a first polarizer, a second polarizer, a sealant layer, a liquid crystal layer, and an optical brightness enhancement film. The first substrate has a pixel structure layer, a circuit element layer, and a signal routing layer. The second substrate overlaps with the first substrate and has a first light-shielding pattern, a second light-shielding pattern, and a third light-shielding pattern. The first polarizer is disposed on the side of the first substrate facing away from the second substrate. The second polarizer is disposed on the side of the second substrate facing away from the first substrate. The sealant layer is sandwiched between the first substrate and the second substrate and defines an accommodating space. The liquid crystal layer is disposed within the accommodating space. The optical brightness enhancement film is disposed on the side of the first polarizer facing away from the first substrate. The context display area includes a first sub-area, a second sub-area, and a third sub-area. The first sub-area, the second sub-area, and the third sub-area each have a first polarizer or a second polarizer. The first sub-area also has a first light-shielding pattern, a sealant layer, and a signal routing layer. The second sub-area also has a second light-shielding pattern, a liquid crystal layer, and a circuit element layer. The third sub-region also includes a third light-shielding pattern, a liquid crystal layer, and a pixel structure layer. The display area includes a first polarizer, a second polarizer, a third light-shielding pattern, a liquid crystal layer, a pixel structure layer, and an optical brightness enhancement film. The transmittance of the first sub-region, the second sub-region, the third sub-region, and the display area are all equal.

[0005] Based on the above, in a display device according to an embodiment of the present invention, the three sub-regions of the display area and the context display area outside the display area are each provided with the same or different number of structural film layers and the same or different types of structural film layers. Through the combination of these structural film layers within the three sub-regions of the display area and the context display area, the transmittance of each of these areas is made approximately equal. Therefore, there is no need to provide a light-shielding structure at the boundary between the display area and the context display area to block light leakage caused by poor liquid crystal layer alignment, the frame adhesive layer, and the circuit structure, which helps to significantly improve the image continuity between the display area and the context display area. Attached Figure Description

[0006] Figure 1 This is a front view schematic diagram of the display device according to the first embodiment of the present invention;

[0007] Figure 2 yes Figure 1 A cross-sectional schematic diagram of the display device;

[0008] Figure 3 This is a cross-sectional schematic diagram of a display device according to a second embodiment of the present invention;

[0009] Figure 4 This is a cross-sectional schematic diagram of a display device according to a third embodiment of the present invention;

[0010] Figure 5 This is a cross-sectional schematic diagram of a display device according to the fourth embodiment of the present invention;

[0011] Figure 6 This is a cross-sectional schematic diagram of a display device according to the fifth embodiment of the present invention;

[0012] Figure 7 This is a cross-sectional schematic diagram of a display device according to the sixth embodiment of the present invention;

[0013] Figure 8 This is a cross-sectional schematic diagram of a display device according to the seventh embodiment of the present invention.

[0014] Symbol Explanation

[0015] 10, 10A, 10B, 10C, 20, 30, 30A: Display devices

[0016] 100, 100A: First substrate

[0017] 110: Pixel structure layer

[0018] 120: Circuit Component Layer

[0019] 130: Signal routing layer

[0020] 140: Patterned metal layer

[0021] 150: Frame adhesive layer

[0022] 200, 200A, 200B, 200C, 200D: Second substrate

[0023] 210: First light-blocking pattern

[0024] 220: Second light-blocking pattern

[0025] 230, 230A: Third light-blocking pattern

[0026] 240, 240A, 240B: Fourth light-blocking pattern

[0027] 260: First color filter layer

[0028] 270, 270A: Second color filter layer

[0029] 261, 271: First color filter pattern

[0030] 262, 272: Second color filter pattern

[0031] 263, 273: Third color filter pattern

[0032] 274: Translucent Pattern

[0033] 300, 300B: Optical Brightness Enhancement Film

[0034] 410: First light panel

[0035] 420: Second light panel

[0036] AL1: First alignment layer

[0037] AL2: Second alignment layer

[0038] D1, D2, D3: Direction

[0039] DA: Display area

[0040] L1: First Length

[0041] L2: Second Length

[0042] LCL: Liquid Crystal Layer

[0043] LED, LED1, LED2, LED3: Light-emitting elements

[0044] OP, OP1, OP2: Openings

[0045] POL1, POL1-B, POL1-C: First polarizer

[0046] POL2, POL2-A, POL2-B: Second polarizer

[0047] SDA: Context Display Area

[0048] W1: First width

[0049] W2: Second width

[0050] Z1~Z5: Sub-region 1~Sub-region 5

[0051] A-A': section line Detailed Implementation

[0052] As used herein, “about,” “approximately,” “essentially,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement in question and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or, for example, within ±30%, ±20%, ±15%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” “essentially,” or “substantially” herein may be chosen to select a more acceptable range of deviations or standard deviations depending on the nature of the measurement, the cutting nature, or other properties, and a single standard deviation may not be applicable to all properties.

[0053] In the accompanying drawings, the thicknesses of layers, films, panels, regions, etc., are enlarged for clarity. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or intermediate elements may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate elements are present. As used herein, "connection" can refer to a physical and / or electrical connection. Furthermore, an "electrical connection" may involve the presence of other elements between the two elements.

[0054] Furthermore, relative terms such as "below" or "bottom" and "above" or "top" may be used herein to describe the relationship between one element and another, as illustrated in the figures. It should be understood that relative terms are intended to include different orientations of the device beyond those shown in the figures. For example, if a device in one figure is flipped, an element described as being "below" to another element will be oriented "above" to that element. Thus, the exemplary term "below" can include both "below" and "above" orientations, depending on the specific orientation of the figure. Similarly, if a device in one figure is flipped, an element described as being "below" or "under" another element will be oriented "above" to that element. Thus, the exemplary terms "above" or "below" can include both "above" and "below" orientations.

[0055] This document describes exemplary embodiments with reference to cross-sectional views as schematic diagrams of idealized embodiments. Therefore, variations in the shape of the illustrations can be expected as a result of, for example, manufacturing techniques and / or tolerances. Consequently, the embodiments described herein should not be construed as limited to the specific shapes of the regions shown herein, but rather include, for example, shape deviations caused by manufacturing processes. For example, regions shown or described as flat may generally have rough and / or non-linear characteristics. Furthermore, the acute angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the precise shapes of the regions, nor are they intended to limit the claims.

[0056] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.

[0057] Figure 1 This is a front view schematic diagram of a display device according to a first embodiment of the present invention. Figure 2 yes Figure 1 A cross-sectional view of the display device along section line A-A'. Figure 3 This is a cross-sectional schematic diagram of a display device according to a second embodiment of the present invention. To simplify the illustration, Figure 1 The display area DA and the context display area SDA of the display device 10 are shown only by way of example, and the drawing of other components is omitted.

[0058] Please refer to Figure 1 and Figure 2 The display device 10 has a display area DA and a context display area SDA outside the display area DA. In this embodiment, the context display area SDA may be arranged around the display area DA, but is not limited thereto. In other embodiments, the context display area SDA of the display device 10 may be located on at least one side of the display area DA; for example, the context display area SDA may be located only on one side of the display area DA. Figure 1 The display area DA runs along the opposite sides of direction D1 or direction D3.

[0059] The display device 10 is, for example, a liquid crystal display device, and includes a first substrate 100, a second substrate 200, a first polarizer POL1, a second polarizer POL2, a sealant layer 150, a liquid crystal layer LCL, and an optical brightness enhancement film 300. The first substrate 100 and the second substrate 200 are disposed overlapping each other. It should be noted that the overlapping relationship here refers, for example, to the two substrates being along... Figure 2 The directions D2 overlap. Unless otherwise specified, the overlapping relationship between any two components is defined in the same way, and will not be repeated hereafter.

[0060] In this embodiment, the second substrate 200 may protrude from the side edge of the first substrate 100, but is not limited thereto. More specifically, the first substrate 100 and the second substrate 200 have a first length L1 and a second length L2 along direction D1, respectively, and the second length L2 of the second substrate 200 is greater than the first length L1 of the first substrate 100.

[0061] A first polarizer POL1 is disposed on the side of the first substrate 100 facing away from the second substrate 200. A second polarizer POL2 is disposed on the side of the second substrate 200 facing away from the first substrate 100. A sealant layer 150 is sandwiched between the first substrate 100 and the second substrate 200, defining a space for filling the liquid crystal layer LCL. An optical brightness enhancement film 300 is disposed on the side of the first polarizer POL1 facing away from the first substrate 100. In this embodiment, the optical brightness enhancement film 300 is, for example, a dual brightness enhancement film (DBEF) used to enhance the overall display brightness of the display device 10, but is not limited thereto. For example, the light beam emitted by the backlight of the display device 10 is composed of two linearly polarized lights with mutually orthogonal polarization electric fields, and the dual brightness enhancement film is adapted to allow one type of linearly polarized light to pass through and reflect the other type of linearly polarized light. This prevents the other type of linearly polarized light reflected back to the backlight from being absorbed by the first polarizer POL1 and allows it to be reused.

[0062] The display device 10 may further include a first light panel 410 and a second light panel 420 (i.e., the aforementioned backlight). The first light panel 410 is disposed over the context display area SDA. The second light panel 420 is disposed over the display area DA. From another perspective, the context display area SDA and the display area DA of the display device 10 can be defined by the placement positions of the first light panel 410 and the second light panel 420.

[0063] For example, the first light panel 410 is, for instance, an ambient light panel, which may include LED1, LED2, and LED3, each emitting a different color of light, and these light-emitting elements can be individually controlled to emit beams of different colors from the first light panel 410. The second light panel 420 is, for instance, a display light panel with multiple LEDs. Similar to the first light panel 410, the second light panel 420 may include multiple LEDs of various colors of light, such as red, green, and blue LEDs. Unlike the first light panel 410, these LEDs of different colors in the second light panel 420 can form a white light-emitting unit to emit white light for display. In other words, unlike the operation of the first light panel 410, when the second light panel 420 is in use, the multiple LEDs of different colors on it need to be simultaneously enabled to produce the desired white light for display.

[0064] In this embodiment, the first substrate 100 may be provided with a pixel structure layer 110, a circuit element layer 120, and a signal routing layer 130. For example, the pixel structure layer 110 may include a plurality of pixel structures arranged in an array, wherein the pixel structures are, for example, at least one active element and at least one pixel electrode electrically connected to each other. The circuit element layer 120 may include a gate driver on array (GOA), a source driver on array (SOA), an electrostatic discharge (ESD) protection circuit, or other control circuits with different functions. The signal routing layer 130 may include a plurality of fanout wires. That is, the first substrate 100 may be the pixel array substrate of the display device 10.

[0065] In this embodiment, the second substrate 200 may be provided with a first light-shielding pattern 210, a second light-shielding pattern 220, a third light-shielding pattern 230, a fourth light-shielding pattern 240, and a first color filter layer 260. That is, the second substrate 200 may be a color filter substrate of the display device 10. For example, the first color filter layer 260 may include a plurality of first color filter patterns 261, a plurality of second color filter patterns 262, and a plurality of third color filter patterns 263 with different colors (e.g., red, green, and blue, but not limited thereto). These color filter patterns may be disposed within a plurality of openings OP of the third light-shielding pattern 230, but are not limited thereto.

[0066] It should be noted that, in this embodiment, the first light-shielding pattern 210, the second light-shielding pattern 220, the third light-shielding pattern 230 and the fourth light-shielding pattern 240 may be formed on the same film layer, and their material may be, for example, black resin material, but is not limited thereto.

[0067] Figure 2 The diagram illustrates the arrangement of the context display area SDA adjacent to the left side of the display area DA along direction D1. For example, the context display area SDA can be divided into a first sub-area Z1, a second sub-area Z2, a third sub-area Z3, a fourth sub-area Z4, and a fifth sub-area Z5, but this is not a limitation. Specifically, the first sub-area Z1, the second sub-area Z2, and the third sub-area Z3 are arranged sequentially adjacent to each other along direction D1. The fourth sub-area Z4 is located adjacent to the first sub-area Z1 on the side facing away from the second sub-area Z2. The fifth sub-area Z5 is adjacent to the fourth sub-area Z4 and the display area DA.

[0068] Although the accompanying drawings do not show the arrangement of the context display area SDA on the other sides of the display area DA, it is understood that on the other sides of the display area DA (e.g., Figure 1The arrangement of multiple sub-regions of the context display area SDA (on the right, top, or bottom side) along the direction away from (or close to) the display area DA can also be similar to that of the context display area SDA. Figure 2 The arrangement.

[0069] It should be noted that the transmittance of the first sub-region Z1, second sub-region Z2, third sub-region Z3, fourth sub-region Z4, and fifth sub-region Z5 of the display area DA and the context display area SDA are approximately equal. Therefore, there is no need to set additional light-shielding structures at the boundary between the display area DA and the context display area SDA to block light leakage caused by poor alignment of the liquid crystal layer LCL at the edge of the display area DA and the setting of the frame adhesive layer 150 and the circuit element layer 120, thereby improving the overall image continuity between the display area DA and the context display area SDA.

[0070] For example, in this embodiment, the first sub-region Z1 of the context display area SDA is provided with a signal trace layer 130, a frame adhesive layer 150, a first light-shielding pattern 210, and a second polarizer POL2. The second sub-region Z2 is provided with a circuit element layer 120, a liquid crystal layer LCL, a second light-shielding pattern 220, and a second polarizer POL2. The third sub-region Z3 is provided with a pixel structure layer 110, a liquid crystal layer LCL, a third light-shielding pattern 230, a first color filter layer 260, and a second polarizer POL2.

[0071] It is particularly noteworthy that in this embodiment, only the second substrate 200 extends into the fourth sub-region Z4 of the context display area SDA. For example, the fourth sub-region Z4 may have a fourth light-shielding pattern 240, but no second polarizer POL2. However, the present invention is not limited thereto. In another embodiment, the second polarizer POL2-A of the display device 10A may extend from the first sub-region Z1 into the fourth sub-region Z4.

[0072] On the other hand, the structural film layers provided in the fifth sub-region Z5 and the display area DA are largely the same, for example, they include an optical brightness enhancement film 300, a first polarizer POL1, a pixel structure layer 110, a liquid crystal layer LCL, a third light-shielding pattern 230, a first color filter layer 260, and a second polarizer POL2. The only difference is that the fifth sub-region Z5 of the context display area SDA has a first lamp board 410, while the display area DA has a second lamp board 420.

[0073] Furthermore, in order to align the multiple liquid crystal molecules (not shown) of the liquid crystal layer LCL in a specific direction without the action of an electric field, the display device 10 may further include a first alignment layer AL1 and a second alignment layer AL2. In this embodiment, the first alignment layer AL1 and the second alignment layer AL2 are respectively disposed on the first substrate 100 and the second substrate 200, and the liquid crystal layer LCL is sandwiched between the first alignment layer AL1 and the second alignment layer AL2.

[0074] In other words, the second sub-region Z2, the third sub-region Z3, the fifth sub-region Z5 of the context display area SDA and the display area DA are also provided with a first alignment layer AL1 and a second alignment layer AL2.

[0075] Because the configurations of the structural film layers in the aforementioned zones are not entirely the same, even the transmittance of the same structural film layer can vary in different zones to ensure that the transmittance of each sub-zone is close to that of the display zone DA. For example, in the context display zone SDA, the fourth sub-zone Z4 has significantly fewer structural film layers than the fifth sub-zone Z5. Under the same illumination from the first lamp panel 410, to balance the transmittance of the fourth sub-zone Z4 and the fifth sub-zone Z5, the aperture ratio of the fourth light-shielding pattern 240 located in the fourth sub-zone Z4 is significantly lower than the aperture ratio of the third light-shielding pattern 230 located in the fifth sub-zone Z5. Here, the aperture ratio is, for example, the percentage of the opening area of ​​the portion of the light-shielding pattern located within the sub-zone to the total distribution area of ​​that portion of the light-shielding pattern.

[0076] Figure 4 This is a cross-sectional schematic diagram of a display device according to a third embodiment of the present invention. Please refer to... Figure 4 The display device 10B in this embodiment and Figure 2 The only difference between the display device 10 and the previous one is the different distribution configuration of the first polarizer and the second polarizer. Specifically, compared to Figure 2 The first polarizer POL1 in this embodiment of the display device 10B further extends from the fifth sub-region Z5 to the third sub-region Z3, the second sub-region Z2 and the first sub-region Z1.

[0077] Conversely, compared to Figure 2 The second polarizer POL2 of the display device 10B does not extend from the fifth sub-region Z5 to the edge of the second substrate 200 to the first sub-region Z1, the second sub-region Z2, the third sub-region Z3 and the fourth sub-region Z4.

[0078] based on Figure 2 and Figure 4 The disclosed content shows that the first sub-area Z1, the second sub-area Z2, and the third sub-area Z3 of the context display area SDA each have one polarizer, while the fifth sub-area Z5 and the display area DA each have two polarizers.

[0079] Figure 5 This is a cross-sectional schematic diagram of a display device according to a fourth embodiment of the present invention. Please refer to... Figure 5 The display device 10C in this embodiment and Figure 4 The only difference between the display device 10B and the previous one is the configuration of the optical brightness enhancement film. Specifically, compared to... Figure 4The optical brightness enhancement film 300B of this embodiment also extends from the display area DA and the fifth sub-area Z5 toward the edge of the first substrate 100 to the first sub-area Z1, the second sub-area Z2 and the third sub-area Z3.

[0080] It is particularly noteworthy that, since the third sub-region Z3 in this embodiment is also provided with an optical brightness enhancement film 300B, in order to reduce the transmittance difference between the third sub-region Z3 and the display area DA (or the fifth sub-region Z5), the aperture ratio of the third light-shielding pattern 230A located in the third sub-region Z3 can be adjusted to be less than the aperture ratio of the third light-shielding pattern 230A located in the display area DA. For example, in this embodiment, the third light-shielding pattern 230A on the second substrate 200A has a plurality of first openings OP1 located in the display area DA and a plurality of second openings OP2 located in the third sub-region Z3. The first openings OP1 and the second openings OP2 have a first width W1 and a second width W2 along the direction D1, respectively, and the first width W1 of the first opening OP1 is greater than the second width W2 of the second opening OP2.

[0081] However, the invention is not limited thereto. In other embodiments, the relative size of the opening widths of the light-shielding pattern in different regions can be adjusted depending on the differences in the configuration of the structural film layers in those regions (e.g., differences in the number and film transmittance).

[0082] Figure 6 This is a cross-sectional schematic diagram of a display device according to the fifth embodiment of the present invention. Please refer to... Figure 6 The display device 20 in this embodiment and Figure 4 The main difference in the display device 10B lies in the relative size relationship between the first substrate and the second substrate. Specifically, in this embodiment, the first substrate 100A of the display device 20 can protrude from the side edge of the second substrate 200B. That is, unlike... Figure 1 In this embodiment of the display device 10, the second length of the second substrate 200B along direction D1 may be less than the first length of the first substrate 100A along direction D1.

[0083] Since the second substrate 200B in this embodiment does not extend to the fourth sub-region Z4 of the context display area SDA, and the fourth sub-region Z4 does not contain any... Figure 4 The fourth light-shielding pattern 240. Correspondingly, the first substrate 100A of this embodiment also extends from the first sub-region Z1 to the fourth sub-region Z4. Therefore, the first polarizer POL1-C can also extend from the first sub-region Z1 to the fourth sub-region Z4.

[0084] In this embodiment, the first substrate 100A may also have a patterned metal layer 140 in the fourth sub-region Z4. Since the patterned metal layer 140 in this embodiment is not covered by the second substrate 200B, in order to reduce the impact of the patterned metal layer 140 on the display side (i.e.,...) Figure 6 The patterned metal layer 140 can be made of a blackened metal with low reflectivity (such as blackened chromium or blackened nickel, but not limited to) to reduce the reflectivity of ambient light on the upper side.

[0085] However, the present invention is not limited thereto. To meet different application requirements, the display device 20 may have a half-mirror design in the fourth sub-region Z4. That is, the patterned metal layer 140 with multiple openings may also be made of other metals with a certain reflectivity (e.g., silver or aluminum).

[0086] Figure 7 This is a cross-sectional schematic diagram of a display device according to the sixth embodiment of the present invention. Please refer to... Figure 7 The display device 30 in this embodiment and Figure 3 The difference between the display device 10A and the previous one is that the second substrate 200C of the display device 30 in this embodiment is further provided with a second color filter layer 270 in the fourth sub-region Z4 of the context display area SDA. For example, the second color filter layer 270 may include a plurality of first color filter patterns 271, a plurality of second color filter patterns 272 and a plurality of third color filter patterns 273. These color filter patterns may be respectively disposed in a plurality of openings of the fourth light-shielding pattern 240A.

[0087] It should be noted that, since the fourth sub-region Z4 is provided with a second color filter layer 270 compared with the adjacent first sub-region Z1, in order to reduce the difference in transmittance between the first sub-region Z1 and the fourth sub-region Z4, the opening area of ​​the fourth light-shielding pattern 240A is, for example, 3.7 times the opening area of ​​the first light-shielding pattern 210, but is not limited thereto.

[0088] Figure 8 This is a cross-sectional schematic diagram of a display device according to the seventh embodiment of the present invention. Please refer to... Figure 8 The display device 30A in this embodiment and Figure 7 The only difference between the display device 30 and the previous one is the composition of the second color filter layer. Specifically, in this embodiment, the second color filter layer 270A on the second substrate 200D further includes a plurality of light-transmitting patterns 274. These light-transmitting patterns 274 are disposed within a portion of the opening of the fourth light-shielding pattern 240B and are adapted to allow multiple colors of light emitted by the first lamp panel 410 to pass through. Accordingly, the difference in aperture ratio between the first light-shielding pattern 210 in the first sub-region Z1 and the fourth light-shielding pattern 240B in the fourth sub-region Z4 can be reduced, which helps to balance the transmittance of the display device 30A in the first sub-region Z1 and the fourth sub-region Z4.

[0089] In summary, in the display device of one embodiment of the present invention, the three sub-regions of the display area and the context display area outside the display area are each provided with the same or different number of structural film layers and the same or different types of structural film layers. Through the combination of these structural film layers within the three sub-regions of the display area and the context display area, the transmittance of each of these areas is made approximately equal. Therefore, there is no need to provide a light-shielding structure at the boundary between the display area and the context display area to block light leakage caused by poor liquid crystal layer alignment, the frame adhesive layer, and the circuit structure, which helps to significantly improve the image continuity between the display area and the context display area.

Claims

1. A display device having a display area and a context display area outside the display area, the display device comprising: The first substrate has a pixel structure layer, a circuit element layer and a signal routing layer; The second substrate overlaps with the first substrate and is provided with a first light-shielding pattern, a second light-shielding pattern and a third light-shielding pattern; A first polarizer is disposed on the side of the first substrate opposite to the second substrate; The second polarizer is disposed on the side of the second substrate opposite to the first substrate; A frame adhesive layer is sandwiched between the first substrate and the second substrate, and defines an accommodating space; A liquid crystal layer is disposed within this accommodating space; An optical brightness enhancement film is disposed on the side of the first polarizer facing away from the first substrate. The context display area includes a first sub-area, a second sub-area, and a third sub-area. The first sub-area, the second sub-area, and the third sub-area are provided with the first polarizer or the second polarizer. The first sub-area is also provided with a first light-shielding pattern, a frame adhesive layer, and a signal trace layer. The second sub-area is also provided with a second light-shielding pattern, a liquid crystal layer, and a circuit element layer. The third sub-area is also provided with a third light-shielding pattern, a liquid crystal layer, and a pixel structure layer. The display area is provided with the first polarizer, the second polarizer, the third light-shielding pattern, the liquid crystal layer, the pixel structure layer, and the optical brightness enhancement film. The transmittance of the first sub-area, the second sub-area, the third sub-area, and the display area are equal to each other. The first light panel overlaps the first sub-area, the second sub-area, and the third sub-area, and defines the context display area; as well as The second light panel overlaps the display area and defines the display area.

2. The display device as claimed in claim 1, wherein the first sub-region, the second sub-region, the third sub-region, and the display area are arranged along a first direction, the first substrate and the second substrate have a first length and a second length respectively along the first direction, the second length being greater than the first length, the display area further includes a fourth sub-region, the fourth sub-region being disposed on the side of the first sub-region away from the second sub-region, and having a fourth light-shielding pattern and the second polarizer, and the transmittance of the first sub-region, the second sub-region, the third sub-region, the fourth sub-region, and the display area are each equal to the other.

3. The display device as claimed in claim 2, wherein the first sub-region, the second sub-region, and the third sub-region are provided with the second polarizer, and the first polarizer is not provided.

4. The display device as claimed in claim 3, wherein the fourth sub-region is further provided with the second polarizer.

5. The display device as claimed in claim 2, wherein the first sub-region, the second sub-region, and the third sub-region are provided with the first polarizer, and the second polarizer is not provided.

6. The display device as claimed in claim 2, wherein the first sub-region, the second sub-region, and the third sub-region are further provided with the optical brightening film.

7. The display device of claim 2, wherein the third light-shielding pattern has a plurality of first openings located in the display area and a plurality of second openings located in the third sub-area, the width of each of the first openings along the first direction being different from the width of each of the second openings along the first direction.

8. The display device as claimed in claim 2, wherein the second substrate further comprises a first color filter layer in the third sub-region and the display area, and the second substrate further comprises a second color filter layer in the fourth sub-region.

9. The display device of claim 8, wherein the first color filter layer and the second color filter layer each include a first color filter pattern, a second color filter pattern and a third color filter pattern that are different from each other.

10. The display device of claim 9, wherein the second color filter layer further includes a light-transmitting pattern, the color of which is different from the colors of the first color filter pattern, the second color filter pattern, and the third color filter pattern.

11. The display device of claim 2, wherein the context display area further includes a fifth sub-area disposed between the fourth sub-area and the display area, the fifth sub-area having the first polarizer, the second polarizer, the third light-shielding pattern, the liquid crystal layer and the pixel structure layer, and the transmittance of the first sub-area, the second sub-area, the third sub-area, the fourth sub-area, the fifth sub-area and the display area are equal to each other.

12. The display device as claimed in claim 11, wherein the fifth sub-region is further provided with the optical brightening film.

13. The display device of claim 11, wherein the second sub-region, the third sub-region, the fifth sub-region and the display area are further provided with a first alignment layer and a second alignment layer, and the liquid crystal layer is sandwiched between the first alignment layer and the second alignment layer.

14. The display device of claim 1, wherein the first sub-region, the second sub-region, the third sub-region, and the display area are arranged along a first direction, the first substrate and the second substrate have a first length and a second length respectively along the first direction, the second length being less than the first length, the display area further includes a fourth sub-region, the fourth sub-region being disposed on the side of the first sub-region away from the second sub-region, the first substrate further having a patterned metal layer in the fourth sub-region, and the transmittance of the first sub-region, the second sub-region, the third sub-region, the fourth sub-region, and the display area are all equal to each other.

15. The display device of claim 14, wherein the first sub-region, the second sub-region, the third sub-region and the fourth sub-region are provided with the first polarizer, and the second polarizer is not provided.

16. The display device of claim 14, wherein the material of the patterned metal layer comprises a blackened metal with low reflectivity.

17. The display device of claim 14, wherein the patterned metal layer is a transflective mirror.

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