Liquid crystal display panel and terminal equipment

Abstract

The embodiment of the utility model discloses a liquid crystal display panel and terminal equipment, the liquid crystal display panel comprises a frame glue area, the liquid crystal display panel comprises a first substrate, a second substrate, a first spacing column located in the display area, frame sealing glue located in the frame glue area and a second spacing column, the second spacing column has at least two heights, the spacing columns with different heights are adaptive to film layer terrains with different heights; the spacing columns which play a supporting role and are different in height are arranged in the frame sealing glue, so that the box thickness at the frame glue area is more uniform, and dark fringes are reduced.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a liquid crystal display panel and a terminal device. Background Art

[0002] During the manufacturing process of LCD panel products, please refer to Figure 1 Usually, spacer particles 11 are added to the frame sealant 4 to strengthen the support effect of the upper and lower substrates. However, the spacer particles 11 added to the frame sealant 4 are mixed with the sealant. Since the spacer particles 11 have the same thickness and are unevenly distributed, it is easy to cause inconsistent heights of the spacers in different film layers. As a result, the sealant area 10 is subjected to uneven force and is prone to depression or bulge, resulting in uneven box thickness at the frame sealant position, and thus producing dark lines.

[0003] Therefore, the existing liquid crystal display panel has the technical problem of uneven thickness of the frame glue area causing dark lines. Utility Model Content

[0004] The embodiments of the present invention provide a liquid crystal display panel and a terminal device, which can alleviate the technical problem of uneven thickness of the frame glue area in the existing liquid crystal display panel, which causes dark lines.

[0005] An embodiment of the present invention provides a liquid crystal display panel, comprising a display area and a sealant area located outside the display area. The liquid crystal display panel further comprises:

[0006] a first substrate;

[0007] a second substrate, disposed opposite to the first substrate;

[0008] a plurality of first spacers, located between the first substrate and the second substrate and in the display area;

[0009] A plurality of second spacers are located between the first substrate and the second substrate and in the sealant area, the second spacers being made of the same material as the first spacers; the plurality of second spacers include at least two heights, and the second spacers of different heights are adapted to terrains of different heights;

[0010] The sealing sealant is located in the sealant area, and the second spacer columns in the sealant area are located in the sealant.

[0011] Optionally, in some embodiments of the present invention, the liquid crystal display panel also includes a liquid crystal layer located between the first substrate and the second substrate, the first substrate is an array substrate, and the array substrate has at least a first region and a second region with different height terrains in the frame glue area, and the second spacer column includes a first sub-column arranged in the first region and a second sub-column arranged in the second region, and the first sub-column and the second sub-column have different heights.

[0012] Optionally, in some embodiments of the present invention, the first spacer columns and the second spacer columns are both disposed on one of the first substrate or the second substrate.

[0013] Optionally, in some embodiments of the present invention, the sum of the height of the terrain of the first area and the thickness of the first sub-column is equal to the sum of the height of the terrain of the second area and the thickness of the second sub-column.

[0014] Optionally, in some embodiments of the present invention, the sealant area further includes a third spacer column, and the height of the third spacer column is smaller than the height of the second spacer column.

[0015] Optionally, in some embodiments of the present invention, the material used to prepare the third spacer is the same as the material used to prepare the second spacer.

[0016] Optionally, in some embodiments of the present invention, a plurality of the second spacer columns are arranged in an array.

[0017] Optionally, in some embodiments of the present invention, the array substrate further includes a first substrate, a first metal layer, an active layer, and a second metal layer sequentially arranged on the side of the first substrate facing the liquid crystal layer, and in the frame glue area, any one of the first metal layer, the active layer, and the second metal layer is arranged at the topography of the first region, and at least two of the first metal layer, the active layer, and the second metal layer are arranged at the topography of the second region.

[0018] Optionally, in some embodiments of the present invention, the second substrate is a color filter substrate, and at least one of a surface of the color filter substrate facing the second spacer and a surface of the color filter substrate away from the second spacer is a flat surface.

[0019] An embodiment of the present invention provides a terminal device, which includes the liquid crystal display panel as described in any of the above embodiments.

[0020] Beneficial effect: By arranging second spacer columns of different heights in the sealing glue in the frame glue area to adapt to the uneven terrain, the two ends of the second spacer columns are respectively abutted against the first substrate and the second substrate, so that the second spacer columns can adjust the box thickness in the frame glue area, making the box thickness in the frame glue area more uniform, thereby reducing dark lines and alleviating the technical problem of dark lines caused by uneven box thickness in the frame glue area of ​​existing liquid crystal display panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 is a cross-sectional schematic diagram of a liquid crystal display panel provided by the prior art;

[0023] Figure 2 This is a first cross-sectional schematic diagram of a liquid crystal display panel provided by the present invention;

[0024] Figure 3 This is a top view schematic diagram of a portion of the film layer in the frame glue area of ​​the liquid crystal display panel provided by the present invention;

[0025] Figure 4 This is a second cross-sectional schematic diagram of the liquid crystal display panel provided by the present invention.

[0026] Description of reference numerals:

[0027] DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention. The technical solutions described below are only used to explain and illustrate the concept of the present invention and should not be regarded as limiting the scope of protection of the present invention.

[0029] In addition, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different technical features. The term "plurality" and similar words mean two or more, unless otherwise expressly limited.

[0030] See also Figure 2The liquid crystal display panel provided by the present invention includes a display area and a frame glue area 10. The liquid crystal display panel 1 includes a first substrate 2, a second substrate 3, a first spacer located between the first substrate and the second substrate and located in the display area, a second spacer located in the frame glue area, and a sealing glue 4. The spacer in the frame glue area has at least two heights, and the spacers of different heights are adapted to terrains of different heights.

[0031] The frame sealing glue 4 is filled and disposed between the first substrate 2 and the second substrate 3 .

[0032] In this embodiment, second spacer columns 5 of different heights are provided in the sealing glue of the frame glue area 10, and the two ends of the second spacer columns 5 are respectively abutted against the first substrate 2 and the second substrate 3. Second spacer columns 5 of different heights are used to adapt to film layer topography of different heights, so that the box thickness in the frame glue area is more uniform, dark lines are reduced, and the technical problem of dark lines caused by uneven box thickness in the frame glue area of ​​existing liquid crystal display panels is alleviated.

[0033] The technical solution of the present utility model will now be described in conjunction with specific embodiments.

[0034] It should be noted that this application only uses the second spacers 5 and the first spacers 6 prepared on the array substrate side as an example for explanation, and is also applicable to the liquid crystal display panel 1 in which the second spacers 5 and the first spacers 6 are prepared on the color filter substrate side.

[0035] In one embodiment, see Figure 2 The first substrate 2 is an array substrate, and the array substrate has at least a first area 8 and a second area 9 with different heights in the frame glue area 10. The second spacer column 5 includes a first sub-column arranged at the terrain of the first area 8 and a second sub-column arranged at the terrain of the second area 9. The first sub-column and the second sub-column have different heights.

[0036] It can be understood that there are terrains of different heights in the frame glue area 10 of the array substrate. At the terrains of different heights, by setting second spacer columns 5 of different heights, the top surfaces of multiple second spacer columns 5 are made flush, and the color film substrate is supported by the top surfaces of multiple second spacer columns 5. In the frame glue area 10, the box thickness between the array substrate and the color film substrate tends to be the same at different terrains, thereby improving the uniformity of the box thickness in the frame glue area 10.

[0037] It should be noted that the two ends of the second spacer 5 are respectively in contact with the array substrate and the color filter substrate. This embodiment is only described by taking the second spacer 5 set on the array substrate as an example. It is also applicable to the liquid crystal display panel 1 in which the second spacer 5 is prepared on the color filter substrate side process.

[0038] In this embodiment, by preparing the second spacers 5 of different heights, the second spacers 5 of different heights are arranged at different terrains in the sealant area 10 , so that the color filter substrate supported by the second spacers 5 can be flatter.

[0039] In one embodiment, see Figure 2 、 Figure 3 The sum of the height of the terrain of the first region 8 and the thickness of the first sub-column is equal to the sum of the height of the terrain of the second region 9 and the thickness of the second sub-column.

[0040] The topography of the first region is a single-layer structure, and the single-layer structure may include a first metal layer 22 , a second metal layer 24 , and an active layer 23 .

[0041] The topography of the second region is a stacked structure, and the stacked structure may include at least two of a first metal layer 22 , a second metal layer 24 , and an active layer 23 .

[0042] It can be understood that a second spacer column 5 can also be provided at other terrain locations in the frame glue area 10, and the sum of the thickness of the second spacer column 5 there and the height of the terrain there is also equal to the sum of the height of the terrain of the first area 8 and the thickness of the first sub-column, so that the box thickness of the liquid crystal display panel in the frame glue area tends to be the same.

[0043] It should be noted that when the surface of the color filter substrate facing the liquid crystal layer is a plane, by arranging second spacers 5 of different heights at different terrains, the top surfaces of the second spacers 5 can be made flush with each other. The flush top surfaces can better support the color filter substrate and achieve better uniformity in cell thickness.

[0044] In this embodiment, by making the sum of the height of the terrain of the first area 8 and the thickness of the first sub-column equal to the sum of the height of the terrain of the second area 9 and the thickness of the second sub-column, the first sub-column is aligned and set at the terrain of the first area 8, and the second sub-column is aligned and set at the terrain of the second area 9, so that the top surfaces of different second spacer columns 5 are flush with each other, thereby improving the flatness of the color film substrate or the array substrate in the frame glue area 10.

[0045] In one embodiment, see Figure 2 The liquid crystal display panel 1 further includes a first spacer 6 , which is disposed in the display area. The material of the first spacer 6 is the same as that of the second spacer 5 .

[0046] It is understandable that the second spacers 5 can be prepared together with the first spacers 6 in the display area, and no additional process is required to prepare the first support layer, which simplifies the process and reduces costs.

[0047] In this embodiment, the second spacers 5 in the sealant area 10 and the first spacers 6 in the display area are manufactured by one photomask, thereby simplifying the process and reducing the cost.

[0048] In one embodiment, see Figure 4 The sealant area 10 further includes a third spacer column 7 , and the height of the third spacer column 7 is less than the height of the second spacer column 5 .

[0049] The third spacer columns 7 may be made of the same material as the second spacer columns 5 and the first spacer columns 6 .

[0050] It can be understood that in the frame glue area 10, by setting a third spacer column 7 whose height is less than that of the second spacer column 5, when the film layer supported by the second spacer column 5 is deformed, the third spacer column 7 plays an auxiliary supporting role, thereby reducing the deformation of the film layer at the abutment with the second spacer column 5, and preventing the film layer in the frame glue area 10 from undergoing large deformation.

[0051] In this embodiment, the third spacer column 7 is provided to play an auxiliary supporting role, thereby improving the supporting effect of the frame glue area 10, preventing the film layer of the frame glue area 10 from undergoing large deformation, and improving the flatness of the frame glue area 10.

[0052] In one embodiment, a plurality of the second spacer columns 5 are arranged in an array.

[0053] In this embodiment, the second spacers 5 are arranged in an array, which can provide a better support effect in the sealant area 10 and improve the flatness of the array substrate and the color filter substrate in the sealant area 10 .

[0054] In one embodiment, see Figure 2 、 Figure 3 The array substrate also includes a first substrate 21, a first metal layer 22, an active layer 23, and a second metal layer 24, which are sequentially arranged on the side of the first substrate 21 facing the liquid crystal layer. In the frame glue area 10, any one of the first metal layer 22, the active layer 23, and the second metal layer 24 is arranged at the topography of the first region 8, and at least two of the first metal layer 22, the active layer 23, and the second metal layer 24 are arranged at the topography of the second region 9.

[0055] in, Figure 3 for Figure 2 Schematic top view of the first and second terrains in the sealant area.

[0056] Among them, only the first metal layer 22 can be set at the terrain of one first area 8, and only the second metal layer 24 can be set at the terrain of another first area 8. The top surfaces of the second spacers 5 located at the terrain of the first area 8 are flush with each other, so that the box thickness of the color film substrate and the array substrate located in the frame glue area 10 is more uniform, avoiding the generation of dark lines in the frame glue area 10 due to uneven box thickness caused by different heights of the terrain.

[0057] In one embodiment, see Figure 4 The second substrate 3 is a color filter substrate, and at least one of a surface of the color filter substrate facing the second spacer 5 and a surface of the color filter substrate away from the second spacer 5 is a flat surface.

[0058] Among them, the color filter substrate also includes a second substrate 31, a color resist layer 32, a black matrix 33, and a third metal layer 34. The color resist layer 32 and the black matrix 33 are in the same layer and are arranged at intervals. The color resist layer 32 and the black matrix 33 are arranged on the side of the second substrate 31 facing the liquid crystal layer, and the third metal layer 34 is arranged on the side of the color resist layer 32 and the black matrix 33 facing the liquid crystal layer.

[0059] The present application provides spacer columns in the sealant 4 of the sealant area 10, and utilizes the spacer columns to support the array substrate and the color filter substrate in the sealant area 10, thereby eliminating the need to fill gap particles in the sealant 4 and reducing costs. At the same time, the second spacer columns 5 located in the sealant area can be prepared simultaneously with the first spacer columns 6 located in the display area in the prior art, which can also simplify the process.

[0060] The present application can control the transmittance of different areas of the mask, thereby preparing a second spacer column 5 that is adapted to the film layer topography in the frame glue area. The second spacer columns of different heights are used to make the box thickness in the frame glue area more uniform, thereby improving the flatness of the array substrate and the color film substrate in the frame glue area 10, and making the box thickness between the array substrate and the color film substrate at the corresponding position of the sealing frame glue 4 more uniform, thereby reducing dark lines.

[0061] The present utility model also proposes a display module and a terminal device, both of which include the above-mentioned liquid crystal display panel, wherein the display module also includes at least one of a back plate, a cover plate, an optical film, and a polarizer, and the terminal device includes but is not limited to a mobile phone, a laptop computer, and a tablet computer.

[0062] The liquid crystal display panel provided by the embodiment of the present utility model includes a frame glue area, the liquid crystal display panel includes a first substrate, a second substrate, a spacer located between the first substrate and the second substrate, and a sealing glue located in the frame glue area, the spacer extends from the display area to the frame glue area, the spacer in the frame glue area is located in the sealing glue, the spacer is arranged on one of the first substrate or the second substrate, the spacer in the frame glue area has at least two heights, and the spacer of different heights is adapted to the film layer topography of different heights; by arranging spacers of different heights in the sealing glue, the spacer is adapted to the film layer topography of different heights, so that the box thickness in the frame glue area is more uniform, the dark lines are reduced, and the technical problem of uneven box thickness in the frame glue area causing dark lines in the existing liquid crystal display panel is alleviated.

[0063] The above describes in detail the liquid crystal display panel provided by the embodiments of the present invention. Without departing from the spirit and essential points of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, and such corresponding changes and modifications shall fall within the scope of protection of the claims appended to the present invention.

Claims

1. A liquid crystal display panel, comprising a display area and a frame glue area located outside the display area, characterized in that: The liquid crystal display panel also includes: a first substrate; a second substrate, arranged opposite to the first substrate; A plurality of first spacer columns are located between the first substrate and the second substrate and in the display area; A plurality of second spacers are located between the first substrate and the second substrate and in the sealant area, and the second spacers are made of the same material as the first spacers; the plurality of second spacers include at least two heights, and the second spacers of different heights are adapted to terrains of different heights; The sealing sealant is located in the sealant area, and the second spacer column in the sealant area is located in the sealant.

2. The liquid crystal display panel according to claim 1, wherein: The liquid crystal display panel also includes a liquid crystal layer located between the first substrate and the second substrate, the first substrate is an array substrate, and the array substrate has at least a first area and a second area with different height terrains in the frame glue area, and the second spacer column includes a first sub-column arranged in the first area and a second sub-column arranged in the second area, and the first sub-column and the second sub-column have different heights.

3. The liquid crystal display panel according to claim 2, wherein: The first spacer column and the second spacer column are both disposed on one of the first substrate or the second substrate.

4. The liquid crystal display panel according to claim 3, wherein: The sum of the terrain height of the first region and the thickness of the first sub-column is equal to the sum of the terrain height of the second region and the thickness of the second sub-column.

5. The liquid crystal display panel according to claim 4, wherein: The sealant area further includes a third spacer column, and the height of the third spacer column is smaller than the height of the second spacer column.

6. The liquid crystal display panel according to claim 5, wherein: The preparation material of the third spacer column is the same as the preparation material of the second spacer column.

7. The liquid crystal display panel according to claim 2, wherein: The array substrate also includes a first substrate, a first metal layer, an active layer, and a second metal layer, which are sequentially arranged on the side of the first substrate facing the liquid crystal layer. In the frame glue area, any one of the first metal layer, the active layer, and the second metal layer is arranged at the topography of the first area, and at least two of the first metal layer, the active layer, and the second metal layer are arranged at the topography of the second area.

8. The liquid crystal display panel according to claim 1, wherein: The first and second spacer columns are arranged in an array.

9. The liquid crystal display panel according to claim 1, wherein: The second substrate is a color filter substrate, and at least one of a surface of the color filter substrate facing the second spacer and a surface of the color filter substrate away from the second spacer is a flat surface.

10. A terminal device, characterized in that: The terminal device comprises the liquid crystal display panel as claimed in any one of claims 1 to 9.

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