TW201809817A - Liquid crystal display panel and a method for adjusting the cell gap of the liquid crystal display panel - Google Patents

Abstract

The present invention provides a liquid crystal panel and a method for adjusting the cell gap of the liquid crystal display panel, including: measuring the distance from the top surface of a spacer to the surface of a substrate to obtain a first thickness; measuring the distance from the top surface of a first support part to the surface of the substrate to obtain a second thickness; if the first thickness is greater than the second thickness, disposing a second support part between the first support part and the sealant, wherein the recovery ratio of the second support part is greater than the recovery ratio of the first support part; and if the first thickness is smaller than the second thickness, disposing a third support part between the first support part and the sealant, wherein the recovery ratio of the third support part is smaller than the recovery ratio of the first support part.

Description

Liquid crystal display panel and method for adjusting liquid crystal gap of liquid crystal display panel

The invention relates to a liquid crystal display panel and a method for adjusting a liquid crystal gap of a liquid crystal display panel, and more particularly to a liquid crystal display panel having a mechanism for adjusting a liquid crystal gap.

It is known that the liquid crystal display panel mostly uses a fixed main gap to adjust the liquid crystal gap of the liquid crystal display panel. Generally speaking, the design position of the main spacer is fixed, and the underlying material of the main spacer at different positions is the same. Although this method can make the main gap provide stable and consistent mechanical characteristics, when the liquid crystal gap in the non-display area of the liquid crystal display panel is abnormal and the brightness of the display is uneven (for example: Newton's ring), if you want to adjust the liquid crystal gap To improve the uneven brightness, the mask of the main gap must be remade to change the density or size of the main gap. Furthermore, the mask of the black matrix layer and the mask of the color filter layer must be further remade. To adjust the mechanical characteristics of the main gap.

One of the objectives of the present invention is to provide a liquid crystal display panel and a method for adjusting the liquid crystal gap of the liquid crystal display panel. The substrates of the spacers are not completely the same, thereby improving the color difference caused by the uneven liquid crystal gap in the conventional liquid crystal display panel. problem.

An embodiment of the present invention provides a liquid crystal display panel, wherein the liquid crystal display panel has a display area and a non-display area surrounding the display area. The liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, a sealant, a plurality of first support portions, a plurality of second support portions, and a plurality of third support portions. The second substrate is disposed opposite the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The frame adhesive is disposed between the first substrate and the second substrate in the non-display area, and the frame adhesive surrounds the liquid crystal layer. The first support portion is disposed between the first substrate and the second substrate in the display area, and each of the first support portions includes a first bottom layer and a first gap, and is sequentially disposed on the surface of the first substrate. The first bottom layer includes A black matrix layer, a first color filter layer, and a protective layer. The second support portion is disposed between the first substrate and the second substrate in the display area, and each of the second support portions includes a second bottom layer and a second gap are sequentially disposed on the surface of the first substrate, where the second bottom layer includes Black matrix layer and protective layer. The third support portion is disposed between the first substrate and the second substrate in the display area, and each of the third support portions includes a third bottom layer and a third gap are sequentially disposed on the surface of the first substrate, wherein the third bottom layer includes A black matrix layer, a first color filter layer, a second color filter layer, and a protective layer. The total thickness of the first, second, and third bottom layers is substantially the same, and the heights of the first, second, and third spacers are substantially the same.

Another embodiment of the present invention provides a method for adjusting a liquid crystal gap of a liquid crystal display panel, including: providing a liquid crystal display panel having a display area and a non-display area surrounding a display area. The liquid crystal display panel includes a substrate, a protective layer, The frame adhesive, the first color filter layer, at least one spacer, and the at least one frame adhesive spacer. The protective layer is disposed on the surface of the substrate. The frame adhesive is located in the non-display area and disposed on the protective layer. The first color filter layer The spacer is disposed between the surface of the substrate and the protective layer, the spacer is disposed on the surface of the protective layer and located in the display area, and the spacer and a portion of the protective layer and a portion of the first color filter layer disposed below the spacer constitute a first support portion, a frame The rubber spacer is disposed on the surface of the protective layer and is located in the sealant. The distance from the upper surface of the spacer to the surface of the substrate is measured to obtain the first total thickness. The distance from the upper surface of the first support to the surface of the substrate is obtained. Two total thicknesses; based on the difference between the first total thickness and the second total thickness, choose to provide at least one second support portion or provide at least one third support portion to be provided in the frame rubber A method of providing a second support portion or a third support portion between the first support portions includes: when the first total thickness is greater than the second total thickness, providing a second support portion provided between the frame rubber and the first support portion And the elastic recovery rate of the second support portion is greater than the elastic recovery rate of the first support portion; and when the first total thickness is less than the second total thickness, a third support portion is provided between the frame rubber and the first support portion And the elastic recovery rate of the third support portion is smaller than the elastic recovery rate of the first support portion.

The invention effectively reduces the variation of the liquid crystal gap by changing the underlying material of the support portion and the configuration of the support portion, and further obtains a liquid crystal display panel with a more uniform liquid crystal gap, so that the conventional liquid crystal display panel can be improved because of the liquid crystal gap. The problem of chromatic aberration occurs equally. In addition, since the present invention only needs to change the configuration of each support portion to achieve the effect of improving chromatic aberration, it is only necessary to adjust the sharing situation of its photomasks, without remaking the photomask of the spacer, the photomask of the black matrix layer, and The mask of the color filter layer can achieve the effect of adjusting the liquid crystal gap.

In order to make a person skilled in the art who is familiar with the technical field of the present invention further understand the present invention, the preferred embodiments of the present invention are enumerated below, and in conjunction with the accompanying drawings, the constitutional content of the present invention and the desired effects are described in detail. .

Please refer to Figure 1 and Figure 2. FIG. 1 is a schematic cross-sectional view of a first embodiment of a liquid crystal display panel of the present invention, and FIG. 2 is a partially enlarged schematic view of a first substrate of the liquid crystal display panel shown in FIG. 1. The liquid crystal display panel 10 of the present invention has a display area R1 and a non-display area R2. The non-display area R2 is arranged around the periphery of the display area R1. The display area R1 is an area where the liquid crystal display panel 10 displays an image. Peripheral wires. Furthermore, the liquid crystal display panel 10 further includes a frame rubber A disposed in the non-display area R2. Specifically, the liquid crystal display panel 10 includes a first substrate G1, a second substrate G2, a liquid crystal layer M, and a sealant A. The second substrate G2 and the first substrate G1 are disposed opposite each other, and the liquid crystal layer M is disposed on the first substrate G1. There is a liquid crystal gap MD between the second substrate G2 and the second substrate G2, and it is surrounded by the frame adhesive A. The first substrate G1 and the second substrate G2 may include a light-transmitting substrate such as a glass substrate, a plastic substrate, or other rigid or flexible substrates. For example, the second substrate G2 and the first substrate G1 may be an array substrate and an opposite substrate, respectively. To the substrate, an active element layer U may be provided on the second substrate G2. For example, the active element layer U includes a plurality of thin film transistors arranged in an array on the surface of the second substrate G2, and the inner surface of the first substrate G1 may be provided with a color Filter layer CF. In addition, the liquid crystal display panel 10 further includes a black matrix layer BM and a protective layer OC disposed on the first substrate G1, wherein the black matrix layer BM is disposed between the color filter layer CF and the first substrate G1, and the protective layer OC covers color The filter layer CF and the black matrix layer BM. It should be noted that the color filter layer CF and the black matrix layer BM may be patterned film layers, but FIG. 1 is only illustrated by a flat film layer. Furthermore, the liquid crystal layer M includes a plurality of liquid crystal molecules, and the sealant A may include a plurality of sealant spacers (not shown in Figs. 1 and 2), such as gold particles having a specific size and spacer balls of other materials. Or other shapes of spacers, but not limited to this. The liquid crystal display panel 10 further includes a plurality of spacers P (only shown in FIG. 2) disposed on the protective layer OC and located between the protective layer OC and the active device layer U to provide support for the gap of the liquid crystal layer M.

As shown in FIG. 2, according to the liquid crystal display panel 10 of the present invention, the color filter layer CF may include a first color filter layer CF1 and a second color in areas other than the frame rubber A in the display area R1 and the non-display area R2. The filter layer CF2 is sequentially disposed on the surface of the black matrix layer BM, and the color filter layer CF may optionally further include a third color filter layer (not shown) disposed on the second color filter layer CF2, The first color filter layer CF1, the second color filter layer CF2, and the third color filter layer may have different colors, for example, the first color filter layer CF1 may be a red filter layer and a second color filter. The layer CF2 may be a green filter layer and the third color filter layer may be a blue filter layer, but is not limited thereto. For example, the first color filter layer CF1 may also be a green filter layer or a blue filter layer. Floor. It should be noted that the present invention is not limited to the second figure. The first color filter layer CF1 and the second color filter layer CF2 may be changed in configuration according to design requirements. For example, in a modified embodiment, the second color filter The light layer CF2 may not cover the first color filter layer CF1.

As shown in FIG. 2, the liquid crystal display panel 10 of the present invention includes a plurality of first support portions C1, a plurality of second support portions C2, and a plurality of third support portions C3. The frame rubber is disposed in the display area R1 and the non-display area R2. Between the first substrate G1 and the second substrate G2 in a region other than A, in order to clearly show the relationship between the film layers in the first support portion C1, the plurality of second support portions C2, and the plurality of third support portions C3 of the present invention, The first support portion C1, the second support portion C2, and the third support portion C3 are not shown in FIG. 1, but the first support portion C1, the second support portion C2, and An enlarged schematic view of each of the third support portions C3, and elements such as the second substrate G2 and the liquid crystal layer M2 are omitted. The first support portion C1 includes a first bottom layer B1 and a first gap P1 on the surface of the first substrate G1, and the second support portion C2 includes a second bottom layer B2 and a second gap P2 on the first substrate. The surface of the substrate G1, and the third support portion C3 includes a third bottom layer B3 and a third spacer P3, which are sequentially disposed on the surface of the first substrate G1, wherein the first spacer P1, the second spacer P2, and the third spacer P3 is the aforementioned spacer P. In the first supporting portion C1, the first bottom layer B1 includes a black matrix layer BM, a first color filter layer CF1, and a protective layer OC, that is, the first supporting portion C1 is stacked by the first gap P1 and the lower portion thereof. The black matrix layer BM, the first color filter layer CF1, and the protective layer OC. In the second supporting portion C2, the second bottom layer B2 includes the black matrix layer BM and the protective layer OC, but does not include the color filter layer CF, that is, the second supporting portion C2 is only formed by the second gap P2 and the area below it. The black matrix layer BM and the protective layer OC are stacked. In the third support portion C3, the third bottom layer B3 includes a black matrix layer BM, a first color filter layer CF1, a second color filter layer CF2, and a protective layer OC, that is, the third support portion C3 is formed by a third The spacer P3 is composed of a black matrix layer BM, a first color filter layer CF1, a second color filter layer CF2, and a protective layer OC stacked below it. From the above, it can be known that the first spacer P1 of the first support portion C1 overlaps with the first color filter layer CF1 in a direction perpendicularly projected on the first substrate G1, and the third spacer P3 of the third support portion C3 is vertically projected. It overlaps the first color filter layer CF1 and the second color filter layer CF2 in the direction of the first substrate G1, and the second gap P2 of the second support portion C2 does not project in the direction perpendicular to the first substrate G1. Overlapping with any color filter layer CF. It should be noted that according to the present invention, the stacked film layers in the first bottom layer B1, the second bottom layer B2, and the third bottom layer B3 are not completely the same, but the total thickness of the three is substantially the same, and the first spacer P1 The heights of the second spacer P2 and the third spacer P3 are also substantially the same. In other words, the total thickness of the first support portion C1, the second support portion C2, and the third support portion C3 is substantially the same. It should be noted that the above-mentioned "total thickness is substantially the same" or "substantially the same height" means that the thickness difference or height difference between the two is less than or equal to 0.3 micrometers, or less than or equal to 5% of the total thickness.

Generally speaking, the material of the protective layer OC may include polymethyl methacrylate (PMMA), polyimide (PI), siloxane, acryl, epoxy, phenolic resin ( Novolak) or other suitable materials. Since the material of the protective layer OC contains no pigment and does not require a large amount of dispersant, the polymers in the material have good bonding ability, such as cross-link bonding between polymers, so The protective layer OC may have better mechanical characteristics, such as a high elastic recovery ratio. On the other hand, the material of the color filter layer CF usually contains a pigment and a dispersant, so the bonding between the polymers in the material is affected and has a lower elastic recovery rate. It can be known from the above that when the color filter layer CF is included in the composition of the bottom layer, the elastic recovery rate will decrease, and the thicker the color filter layer CF in the bottom layer, the lower the elastic recovery rate. Therefore, in this embodiment, the second bottom layer B2 has the highest elastic recovery rate because it does not have any color filter layer CF, and the first bottom layer B1 has a lower elastic recovery rate because it has the first color filter layer CF1. The third bottom layer B3 has a lower elastic recovery rate because it has both the first color filter layer CF1 and the second color filter layer CF2. It can be known from the above that the elastic recovery rate of the third bottom layer B3 is smaller than the elastic recovery rate of the first bottom layer B1, and the elastic recovery rate of the first bottom layer B1 is smaller than the elastic recovery rate of the second bottom layer B2. When the height of the second spacer P2 and the third spacer P3 are substantially the same, the elastic recovery rate of the third support portion C3 is smaller than the elastic recovery rate of the first support portion C1, and the elastic recovery rate of the first support portion C1 The elastic recovery rate is smaller than that of the second support portion C2. For example, the difference between the elastic recovery rate of the third support portion C3 and the elastic recovery rate of the first support portion C1 may be greater than or equal to 3%, and the elastic recovery rate of the first support portion C1 and the elasticity of the second support portion C2 The difference in response rate can also be greater than or equal to 3%, but it is not limited to this. According to this, although the first support portion C1, the second support portion C2, and the third support portion C3 of the display panel 10 of the present invention have substantially the same total thickness, they have different elastic recovery rates, and therefore can be used in the display area. The first support portion C1, the second support portion C2, and the third support portion C3 are arranged in different regions in R1 to adjust the pressure tolerance and the panel elastic recovery rate of each region of the liquid crystal display panel 10. It is worth noting that since the main difference between the first support portion C1, the second support portion C2 and the third support portion C3 is the number of film layers of the color filter layer in the bottom layer, it is only necessary to adjust the color filter layer in the manufacturing process. The position of the photomask can easily make the first, second and third bottom layers B1, B2, B3. In other words, the present invention does not need to remake the photomask of each component in the support portion, and the existing photomask can be used. At least three kinds of supporting parts with different elastic recovery rates are made.

How to further adjust the liquid crystal gap of the liquid crystal display panel and improve the overall mechanical strength of the liquid crystal display panel by using the configuration of the first support portion, the second support portion, and the third support portion in the liquid crystal display panel of the present invention will be described below. Sequential introduction.

First, a specific embodiment of the liquid crystal display panel of the present invention using the configuration of the first support portion C1, the second support portion C2, and the third support portion C3 to adjust the liquid crystal gap of the liquid crystal display panel will be described. Please refer to FIG. 3. FIG. 3 is a schematic diagram of a supporting portion configuration of the first embodiment of the liquid crystal display panel of the present invention. As shown in FIG. 3, in this embodiment, the second support portion C2 and the third support portion C3 of the liquid crystal display panel 10 are arranged adjacent to the frame A at intervals, and surround the first support portion provided in the display area R1 in a ring shape. A support portion C1. In this embodiment, the interval between the second support portion C2 and the third support portion C3, which has a large difference in elastic recovery rate, is arranged in order to help reduce the distance between the first substrate G1 and the second substrate G2 adjacent to the frame rubber A. The variation of the liquid crystal gap MD (see FIG. 1), and thus a liquid crystal display panel 10 having a uniform liquid crystal gap MD is obtained, so that the problem of color difference due to uneven liquid crystal gaps in the conventional liquid crystal display panel can be improved.

The liquid crystal display panel of the present invention is not limited to the above embodiments. The following will sequentially introduce the liquid crystal display panel of other preferred embodiments of the present invention, and in order to facilitate the comparison of the differences between the embodiments and simplify the description, the same symbols are used to mark the same elements in the following embodiments, and The differences between the embodiments are mainly described, and the repeated parts are not described again.

Please refer to FIG. 4. FIG. 4 is a schematic diagram of a supporting portion configuration of the second embodiment of the liquid crystal display panel of the present invention. As shown in FIG. 4, in the liquid crystal display panel 20, the second support portion C2 is disposed adjacent to the four corners of the frame rubber A, and the first support portion C1 is disposed adjacent to the frame rubber A and the second support portion C2 in a ring shape. The third support portion C3 which is disposed in the display area R1 (not shown in FIG. 4) is enclosed. In other words, the first support portion C1 adjacent to the side of the frame rubber A is provided in the third support portion C3 and the frame rubber A. The first support portion C1 adjacent to the second support portion C2 is disposed between the third support portion C3 and the second support portion C2. From the frame rubber A to the central area of the display area R1, the second support portion C2, the first support portion C1, and the third support portion C3 are sequentially arranged, so that the elastic recovery rate of the display panel 20 from the periphery to the center is gradually reduced. This setting can improve the color unevenness and Newton's ring phenomenon caused when the liquid crystal gap MD is abnormal in the corner of the liquid crystal display panel 20. The structure of this embodiment is applicable to the case where the liquid crystal gaps MD of the four corners of the liquid crystal display panel 20 are too small, and the elastic recovery rate of the second support portion C2 can be designed to be greater than that of the first support portion C1 by about 3%. The elastic recovery rate of the first support portion C1 is greater than the elastic recovery rate of the third support portion C3 by about 3%, so as to improve the problem of abnormal liquid crystal gap MD in the corner of the liquid crystal display panel 20 described above, but not limited thereto.

Please refer to FIG. 5. FIG. 5 is a schematic diagram showing a configuration of a supporting portion of a modified embodiment of the second embodiment of the liquid crystal display panel of the present invention. As shown in FIG. 5, compared with the second embodiment, in the liquid crystal display panel 20 ′ of this modified embodiment, the positions of the third support portion C3 and the second support portion C2 are exchanged with each other, that is, the third The support portion C3 is provided adjacent to the four corners of the frame rubber A, and the first support portion C1 is provided adjacent to the frame rubber A and the third support portion C3, and surrounds the ring-shaped surrounding area provided in the display area R1 (not shown in FIG. 5). Second support portion C2. In other words, the first support portion C1 adjacent to the side of the frame rubber A is disposed between the second support portion C2 and the frame rubber A, and the first support portion C1 adjacent to the third support portion C3 is disposed on the second support. Between the portion C2 and the third support portion C3. From the frame rubber A to the central area of the display area R1, the third support portion C3, the first support portion C1, and the second support portion C2 are sequentially arranged, so that the elastic recovery rate of the display panel 20 from the periphery to the center is gradually increased. This setting can also improve the color unevenness and Newton's ring phenomenon caused by the abnormal liquid crystal gap MD in the corners of the liquid crystal display panel 20, and is particularly applicable to the situation where the liquid crystal gap MD in the four corners of the liquid crystal display panel 20 is too large. Next, the elastic recovery rate of the second support portion C2 can be designed to be larger than that of the first support portion C1 by about 3%, and the elastic recovery rate of the first support portion C1 is larger than that of the third support portion C3 by about 3%. %, To improve the problem that the liquid crystal gap MD is abnormal at the corner of the liquid crystal display panel 20, but it is not limited to this.

Please refer to FIG. 6, which illustrates a schematic diagram of a supporting portion configuration of a third embodiment of the liquid crystal display panel of the present invention. As shown in FIG. 6, the liquid crystal display panel 30 is a curved liquid crystal display panel having a center line N, and the display panel 30 uses the center line N as the axis of the curved surface. The second support portion C2 of this embodiment is provided along the center line N and both sides of the center line N, and the first support portion C1 and the third support portion C3 are arranged at intervals between the frame rubber A and the second support portion C2. between. Specifically, when a curved liquid crystal display panel is generally manufactured, a flat liquid crystal display panel is first manufactured, and then the flat liquid crystal display panel is bent to form a curved liquid crystal display panel. In this case, the spacers located on both sides of the centerline N and the centerline N will be squeezed to a large extent, so that the liquid crystal gap MD is likely to be uneven. Therefore, this embodiment will The two supporting portions C2 are disposed on both sides of the centerline N and the centerline N, which will help improve the problem of uneven display brightness of the curved display panel.

Please refer to FIG. 7. FIG. 7 is a schematic diagram of a supporting portion configuration of a first modified embodiment of a third embodiment of a liquid crystal display panel of the present invention. As shown in FIG. 7, compared with the third embodiment, in the liquid crystal display panel 30 ′, the third support portion C3 is provided along the center line N, and the second support portion C2 is provided along the center line N. The side is arranged at least two straight lines, and the first support portion C1 is arranged between the frame rubber A and the second support portion C2 and is arranged in at least two straight lines in a direction parallel to the center line N. According to this modified embodiment, when the liquid crystal gap MD is large due to panel bending near the centerline N, a third support portion C3 with a small elastic recovery rate is provided on the centerline N, and the liquid crystal display panel 30 'is adjacent to the peripheral area. Since the liquid crystal gap MD is supported by the frame adhesive A, it will have a relatively fixed gap size. Therefore, a first support portion C1 is provided, and second support portions C2 are provided on both sides of the centerline N as a buffer to provide the liquid crystal gap MD. Better support effect, thereby improving the problem of uneven display brightness of curved display panels.

Please refer to FIG. 8. FIG. 8 is a schematic diagram illustrating a configuration of a supporting portion of a second modified embodiment of a third embodiment of a liquid crystal display panel of the present invention. As shown in FIG. 8, in the liquid crystal display panel 30 ″ of this modified embodiment, the second support portion C2 is provided along the center line N, and the third support portion C3 is provided along both sides of the center line N. The first support portion C1 is disposed between the frame rubber A and the third support portion C3 and is aligned in a direction parallel to the center line N. According to this modified embodiment, when the liquid crystal gap MD is small due to bending near the centerline N, a second support portion C2 having a large elastic recovery rate is provided on the centerline N, and a portion adjacent to the frame rubber A is still provided with a first A support portion C1, and a third support portion C3 is provided between the first support portion C1 and the second support portion C2, so as to provide a better liquid crystal gap MD support effect.

Please refer to FIG. 9, which is a schematic diagram of a supporting portion configuration according to a third variation of one of the third embodiment of the liquid crystal display panel of the present invention. As shown in FIG. 9, compared with the third embodiment, in the liquid crystal display panel 30 ′ ″, the second support portion C2 is disposed along the center line N, and the first support portion C1 and the third support portion C3 The spacers are arranged between the frame rubber A and the second support portion C2. With the above configuration, the support effect and elastic recovery rate of the entire liquid crystal gap MD of the liquid crystal display panel 30 '' 'can be made uniform.

The invention also provides a method for adjusting the liquid crystal gap of a liquid crystal display panel by using support portions having different bottom layers. Please refer to FIGS. 10 to 15. FIG. 10 shows a flowchart of a method for adjusting a liquid crystal gap of a liquid crystal display panel according to the present invention. FIGS. 11 to 15 show a method of adjusting a liquid crystal gap of a liquid crystal display panel according to the present invention. Partial schematic diagram of the panel structure. In order to make the illustration simple and clear, FIG. 11 to FIG. 15 only show the first substrate and a part of the film layers and elements on the surface thereof and the second substrate. As shown in FIG. 10 and FIG. 11, according to the method for adjusting the liquid crystal gap of a liquid crystal display panel according to the present invention, first, step S1 is performed to provide a liquid crystal display panel 10 ′, wherein the liquid crystal display panel 10 ′ is a semi-finished product and may generally have The structure shown in FIG. 1 includes, for example, a first substrate G1, a second substrate G2, an active device layer U, a liquid crystal layer M, a protective layer OC, a color filter layer CF, at least one spacer P, and a black matrix layer BM. And a frame adhesive A (some elements are not shown in FIG. 11) and the like, wherein a protective layer OC is provided on the surface of the first substrate G1, a color filter layer CF is provided between the first substrate G1 and the protective layer OC, and a gap P is disposed on the surface of the protective layer OC and is located in the display area R1, and frame adhesive A is disposed on the surface of the protective layer OC and is located in the non-display area R2. In addition, the liquid crystal display panel 10 'may optionally include a patterned black matrix layer BM disposed between the color filter layer CF and the first substrate G1. Generally, since the display area R1 of the liquid crystal display panel 10 'is provided with a pixel array, a single-layer color filter layer CF with multiple colors in the display area R1 corresponds to each sub-pixel in the pixel array. For example, in FIG. 11, the first color filter layer CF1 is taken as an example, and the spacer P and a portion of the protective layer OC, a portion of the first color filter layer CF1 and a selective black matrix layer BM disposed below it are displayed. The first support portion C1 is formed in the region R1. As described in the foregoing embodiment, the film stack structure under the spacer P is regarded as the first bottom layer B1, and includes a protective layer OC, a portion of the first color filter layer CF1, and a selective Black matrix layer BM. Since most of the protective layer OC in the display area R1 will be covered on the color filter layer CF, the protective layer OC in the display area R1 can maintain its flatness with almost no height difference. The protective layer OC is visible in the display area R1 It has the function of a flat layer, and when the film stack structure under the spacers P in the display area R1 is the same as the first support portion C1, there is only a protective layer OC, a color filter layer CF, and a selective black matrix layer In the case of BM, then the stacking of the spacers P and the film layers below them has substantially the same mechanical strength, elastic recovery rate, and thickness as the aforementioned first support portion C1. On the other hand, in the non-display area R2 or the sealant A, since there is no color filter layer CF under the protective layer OC, the thickness from the surface of the protective layer OC to the surface of the first substrate G1 will be larger than the film of the display area R1. The total layer thickness is small, that is, the thickness between the protective layer OC surface and the first substrate G1 is slightly different between the display area R1 and the frame adhesive A or the non-display area R2 (the difference in thickness is not shown in FIG. 11). In other words, if the protective layer OC and the selective black matrix layer BM between the sealant A and the first substrate G1 are regarded as the fourth bottom layer B4, the thickness of the first bottom layer B1 will be greater than the thickness of the fourth bottom layer B4. . The above situation causes the liquid crystal display panel 10 'to have liquid crystal gaps MD with different sizes in the display area R1 and the non-display area R2, which further affects the display quality of the liquid crystal display panel 10' and produces a phenomenon of uneven brightness. Therefore, in order to uniformize the liquid crystal gap MD as much as possible, a rigid sealant spacer A1 such as a spacer ball or another shape spacer may be provided in the sealant A, as shown in FIG. 12. Examples of the material of the sealant spacer A1 include gold, silicon dioxide, polymethyl methacrylate (PMMA), polyimide (PI), or other suitable materials, but not limited thereto. In addition, when setting the frame spacer A1, the height difference between the fourth bottom layer B4 of the frame A and the first bottom layer B1 of the display area R1 should be considered to select a frame spacer A of an appropriate size to effectively reduce The height difference of the liquid crystal gap MD between the display area R1 and the non-display area R2. However, because the size of the sealant spacer A1 is limited, even if a sealant spacer A1 of an appropriate size is provided in the sealant A, the liquid crystal gap between the display region R1 and the non-display region R2 cannot be achieved. The MD is exactly the same.

Therefore, the method of the present invention uses the following steps S2 to S6 to achieve the purpose of adjusting the liquid crystal gap MD. After step S1, step S2 and step S3 can be performed separately and refer to FIG. 12 at the same time. In step S2, the distance from the upper surface of the sealant spacer A1 to the surface of the first substrate G1 is measured to obtain a first total thickness T1. In addition, step S3 is performed to measure the distance from the upper surface of the first support portion C1 to the surface of the first substrate G1 to obtain a second total thickness T2. It is worth noting that the present invention does not limit the execution sequence of steps S2 and S3, and may choose to perform step S2 or step S3 first according to actual needs. Next, step S4 is performed to calculate the difference between the first total thickness T1 and the second total thickness T2, and based on the difference, it is selected to provide at least one second support portion C2 or to provide at least one third support portion C3 to be disposed on the frame rubber. Between A and the first support portion C1. As shown in FIG. 12, if the size of the frame rubber spacer A1 is large, for example, the particle size of the frame rubber spacer A1 is larger than the height of the first spacer P1, then the first total thickness T1 will be larger than the second total thickness T2, That is, when the difference between the first total thickness T1 and the second total thickness T2 is greater than zero, step S5 is performed. As shown in FIG. 13, at least one second support portion C2 is provided on the frame rubber A and the first support. Between the parts C1 and the elastic recovery rate / mechanical characteristics of the second support part C2 is greater than the elastic recovery rate / mechanical characteristics of the first support part C1. In detail, when the first total thickness T1 is larger than the second total thickness T2, the support force of the frame spacer A1 representing the frame A is too good, and the liquid crystal gap MD supported by the frame spacer A is larger than the first support portion in the display area R1. The liquid crystal gap MD supported by C1, so the method of the present invention provides a second support portion C2 with a large elastic recovery rate / mechanical characteristics, which is disposed between the frame spacer A1 and the first support portion C1, and the second support portion C2 is used as The buffer of changes in the liquid crystal gap MD between the display area R1 and the sealant A is obtained, thereby obtaining a liquid crystal display panel with a more uniform liquid crystal gap MD, thereby improving display quality. In a preferred embodiment, the second support portion C2 is disposed in the display area R1 and is disposed adjacent to the non-display area R2. However, in a modified embodiment, the second support portion C2 may also be disposed in the non-display area R2, located between the display area R1 and the frame rubber A.

On the other hand, as shown in FIG. 10 and FIG. 14, if the size of the frame spacer A1 is small, for example, smaller than the height of the first spacer P1, the first total thickness T1 will be smaller than the second total thickness T2. That is, when the difference between the first total thickness T1 and the second total thickness T2 is less than zero, step S6 is performed. As shown in FIG. 15, at least one third support portion C3 is provided on the frame rubber A and the first support. The elastic recovery rate / mechanical characteristics of the third support portion C3 is smaller than the elastic recovery rate / mechanical characteristics of the first support portion C1. Specifically, when the first total thickness T1 is smaller than the second total thickness T2, it means that the support force of the frame rubber A is insufficient, and the liquid crystal gap MD supported by the first support portion C1 in the display area R1 is larger than the non-display area R2 spaced by the frame rubber. The liquid crystal gap MD supported by the object A1 and the frame rubber A. Therefore, the method of the present invention provides a third support portion C3 with a small elastic recovery rate / mechanical characteristics. The third support portion C3 is provided between the frame rubber spacer A1 and the first support portion C1. The support portion C3 serves as a buffer, thereby balancing the change in the liquid crystal gap MD between the sealant A and the display region R1, thereby obtaining a liquid crystal display panel with a more uniform liquid crystal gap MD, and further improving the display quality. As shown in FIG. 15, the third support portion C3 is provided in the display area R1 in this embodiment. In a preferred embodiment, the third support portion C3 is provided adjacent to the non-display area R2, but is not limited thereto. In a modified embodiment, the third support portion C3 may also be disposed in the non-display area R2 and located between the frame rubber A and the display area R1.

In summary, the present invention provides support parts with different elastic recovery rates and mechanical characteristics by changing the underlying material of the support parts, and effectively reduces the variation of the liquid crystal gap by various configurations of the support parts, thereby achieving uniformity. The liquid crystal display panel with liquid crystal gap can improve the problem of color difference caused by uneven liquid crystal gap in the conventional liquid crystal display panel. In addition, because the present invention only needs to change the configuration of each support portion to achieve the effect of improving chromatic aberration, it is only necessary to configure the common situation of the photomask of the bottom middle film layer (such as a color filter layer) without remaking the spacers. The mask, the mask of the black matrix layer, and the mask of the color filter layer can achieve the effect of adjusting the liquid crystal gap. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.

A‧‧‧Frame glue
A1‧‧‧Frame spacer
B1‧‧‧First floor
B2‧‧‧Second floor
B3‧‧‧ Third floor
B4‧‧‧ Fourth floor
BM‧‧‧Black Matrix Layer
C1‧‧‧First support
C2‧‧‧Second support
C3‧‧‧third support
CF‧‧‧ color filter
CF1‧‧‧The first color filter layer
CF2‧‧‧Second color filter layer
CF3‧‧‧third color filter
G1‧‧‧First substrate
G2‧‧‧Second substrate
M‧‧‧LCD layer
MD‧‧‧LCD gap
OC‧‧‧protective layer
P‧‧‧interstitial
P1‧‧‧The first gap
P2‧‧‧Second spacer
P3‧‧‧third gap
R1‧‧‧display area
R2‧‧‧ non-display area
S1, S2, S3, S4, S5, S6 ‧‧‧ steps
T1‧‧‧First total thickness
T2‧‧‧Second total thickness
U‧‧‧Active component layer
10, 10 ', 20, 20', 30, 30 ', 30'',30''' ‧‧‧ LCD display panel

FIG. 1 is a schematic cross-sectional view of a first embodiment of a liquid crystal display panel according to the present invention. FIG. 2 is a partially enlarged schematic diagram of the first substrate of the liquid crystal display panel shown in FIG. 1. FIG. 3 is a schematic view showing a configuration of a supporting portion of the first embodiment of the liquid crystal display panel of the present invention. FIG. 4 is a schematic view showing a configuration of a supporting portion of a second embodiment of a liquid crystal display panel of the present invention. FIG. 5 is a schematic view showing a configuration of a supporting portion of a modified embodiment of the second embodiment of the liquid crystal display panel of the present invention. FIG. 6 is a schematic view showing a configuration of a supporting portion of a third embodiment of a liquid crystal display panel of the present invention. FIG. 7 is a schematic view showing a configuration of a supporting portion of a first modified embodiment of a third embodiment of a liquid crystal display panel of the present invention. FIG. 8 is a schematic view showing a configuration of a support portion of a second modified embodiment of a third embodiment of a liquid crystal display panel of the present invention. FIG. 9 is a schematic view showing a configuration of a supporting portion of a third modified embodiment of a third embodiment of a liquid crystal display panel of the present invention. FIG. 10 is a flowchart of a method for adjusting a liquid crystal gap of a liquid crystal display panel according to the present invention. 11 to 15 are partial schematic diagrams of panel structures of the method for adjusting a liquid crystal gap of a liquid crystal display panel according to the present invention.

S1, S2, S3, S4, S5, S6 ‧‧‧ steps

Claims (16)

A liquid crystal display panel, wherein the liquid crystal display panel has a display area and a non-display area arranged around the periphery of the display area and includes: a first substrate; a second substrate disposed opposite to the first substrate; a liquid crystal layer Is disposed between the first substrate and the second substrate; a frame adhesive is disposed between the first substrate and the second substrate in the non-display area, and the frame adhesive surrounds the liquid crystal layer; A support portion is disposed between the first substrate and the second substrate in the display area, and each of the first support portions includes a first bottom layer and a first gap, and is sequentially disposed on the first substrate. The surface, wherein the first bottom layer includes a black matrix layer, a first color filter layer, and a protective layer; a plurality of second support portions are disposed between the first substrate and the second substrate in the display area And each of the second supporting portions includes a second bottom layer and a second gap sequentially disposed on the surface of the first substrate, wherein the second bottom layer includes the black matrix layer and the protective layer; and a plurality of third layers Support, The third substrate is disposed between the first substrate and the second substrate in the display area, and each of the third support portions includes a third bottom layer and a third gap are sequentially disposed on the surface of the first substrate. The third bottom layer includes the black matrix layer, the first color filter layer, a second color filter layer, and the protective layer; wherein the total thickness of the first bottom layer, the second bottom layer, and the third bottom layer is substantially the same. And the heights of the first spacer, the second spacer and the third spacer are substantially the same. The liquid crystal display panel according to claim 1, wherein the second support portions and the third support portions are arranged adjacent to the frame rubber at intervals and surround the first support portions in a ring shape. The liquid crystal display panel according to claim 1, wherein the second support portions are disposed adjacent to the corners of the frame rubber, and the first support portions are disposed adjacent to the frame rubber and the second support portions. The liquid crystal display panel according to claim 3, wherein the first support portions surround the third support portions in a ring shape, and the first support portions are disposed on the third support portions and the second support portions. And between the frame glue. The liquid crystal display panel according to claim 1, wherein the third support portions are disposed adjacent to a corner of the frame rubber, and the first support portions are disposed adjacent to the frame rubber and the third support portion. The liquid crystal display panel according to claim 5, wherein the first support portions surround the second support portions in a ring shape, and the first support portions are disposed on the second support portions and the third support portions. And between the frame glue. The liquid crystal display panel according to claim 1, wherein the elastic recovery rate of the third support portions is smaller than the elastic recovery rate of the first support portions, and the elastic recovery rate of the first support portions is less than the second recovery portion. The elastic recovery rate of the support. The liquid crystal display panel according to claim 7, wherein the difference between the elastic recovery rate of the third support portions and the elastic recovery rate of the first support portions is greater than or equal to 3%, and the elasticity of the first support portions is The difference between the recovery rate and the elastic recovery rate of the second support portions is greater than or equal to 3%. The liquid crystal display panel according to claim 1, wherein the liquid crystal display panel is a curved liquid crystal display panel, and the curved liquid crystal display panel has a center line, and the curved display panel uses the center line as an axis. bending. The liquid crystal display panel according to claim 9, wherein the second support portions are arranged along the center line and both sides of the center line, and the first support portions and the third support portions are arranged at intervals. Between the frame rubber and the second support portions. The liquid crystal display panel according to claim 9, wherein the third support portions are disposed along the center line, and the second support portions are disposed along both sides of the center line, and the first support portions It is arranged between the frame rubber and the second supporting portions. The liquid crystal display panel according to claim 9, wherein the second support portions are disposed along the center line, and the third support portions are disposed along both sides of the center line, and the first support portions It is arranged between the frame rubber and the third supporting portions. The liquid crystal display panel according to claim 9, wherein the second support portions are arranged along the center line, and the first support portions and the third support portions are arranged at intervals between the frame adhesive and the Between the second support portions. A method for adjusting the liquid crystal gap of a liquid crystal display panel. The method includes: providing a liquid crystal display panel having a display area and a non-display area arranged around the periphery of the display area. The liquid crystal display panel includes: a substrate; a protection A layer is disposed on the surface of the substrate; a frame adhesive is located in the non-display area and is disposed on the protective layer; a first color filter layer is disposed between the substrate surface and the protective layer; at least one gap is disposed on the protection The layer surface is located in the display area, and the at least one spacer and a portion of the protective layer and a portion of the first color filter layer disposed below it constitute a first support portion; and at least one frame spacer is disposed on The surface of the protective layer is located in the sealant; the distance from the upper surface of the sealant spacer to the substrate surface is measured to obtain a first total thickness; the distance from the upper surface of the first support portion to the substrate surface is measured, Obtaining a second total thickness; and selecting to provide at least a second support portion or to provide at least a third support portion according to a difference between the first total thickness and the second total thickness A method provided between the frame rubber and the first support portion and providing the at least one second support portion or the at least one third support portion includes: when the first total thickness is greater than the second total thickness, Providing the at least one second support portion between the frame rubber and the first support portion, and the elastic recovery rate of the at least one second support portion is greater than the elastic recovery rate of the first support portion; and when the first When a total thickness is less than the second total thickness, the at least one third support portion is provided between the frame rubber and the first support portion, and the elastic recovery rate of the at least one third support portion is less than the first The elastic recovery rate of the support. The method for adjusting a liquid crystal gap of a liquid crystal display panel according to claim 14, wherein the at least one second supporting portion includes the protective layer and a spacer disposed on the surface of the substrate in order. The method for adjusting a liquid crystal gap of a liquid crystal display panel according to claim 14, wherein the at least one third support portion includes the protective layer, the first color filter layer, a second color filter layer, and a spacer. The sequence is disposed on the surface of the substrate.