CN112965290A

CN112965290A - LCD display panel, manufacturing method and display device

Info

Publication number: CN112965290A
Application number: CN202110413781.7A
Authority: CN
Inventors: 郑恩强; 姚之晓; 刘家荣; 颜京龙; 郑箫逸; 崔晓鹏
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Display Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Display Technology Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-06-15

Abstract

The application discloses an LCD display panel, which comprises a color film substrate, an electrode layer and a liquid crystal layer. The color film substrate comprises a first display area and a first peripheral area, wherein the first peripheral area comprises a shading layer, and the shading layer is arranged around the first display area. The liquid crystal layer is arranged between the electrode layer and the color film substrate. The liquid crystal layer includes an edge liquid crystal region for controlling light emission of the edge sub-pixel. The first orthographic projection of the edge liquid crystal region on the color film substrate is overlapped with the shading layer. The area of the first orthographic projection other than the overlap covers the edge sub-pixels. The area of the edge sub-pixel which is originally the same as the area of the edge liquid crystal area is reduced, the influence of a vertical electric field generated when an electric field generated by BM coupling is conducted to the edge sub-pixel is reduced, particularly, liquid crystal of a shielded part of the edge liquid crystal area is not disordered any more, and therefore the condition of edge bright lines is relieved.

Description

LCD display panel, manufacturing method and display device

Technical Field

The application relates to the technical field of liquid crystal display screens, in particular to an LCD display panel, a manufacturing method and display equipment.

Background

In the existing LCD (Liquid Crystal Display) product, the peripheral Black frame is usually 8mm, and is used for laying edge Gate (Gate of driving device) metal traces, so that the area is usually covered by a BM (Black Matrix).

However, the tiled screen usually requires the development of very narrow bezel products, only 1.08 mm. When the frame is narrowed, the metal traces at the frame will become very dense, so that the overlapping area of the metal traces and the BM is increased. After the metal wiring is electrified, the grid voltage is about-8V for a long time, and a parallel plate capacitor is formed with the BM, so that the BM coupling is electrified. Since BM is a carbon matrix hybrid polymer, it is very conductive. After the BM contacts a sub-pixel (e.g., a red pixel) at the edge of the display region, the sub-pixel is easily charged to form a vertical electric field. The existence of the vertical electric field causes the liquid crystal at the edge of the display area to be abnormally deflected to form a liquid crystal display disorder area, thereby generating bright lines at the edge of the display area.

In order to alleviate the problem of red pixel charging caused by BM, BM trenching is usually used to isolate electrostatic transmission. However, in the tiled screen product, the extremely narrow bezel results in no grooves, and if the grooves are forced, the backlight will pass through, thereby generating slit light leakage. Therefore, there is a need to solve the coupled bright line problem while avoiding gouging.

Disclosure of Invention

By providing the LCD display panel, the manufacturing method and the display device, the technical problem of coupling bright lines can be solved under the condition of avoiding groove digging, and the display performance of the display panel is improved.

In a first aspect, the present application provides an LCD display panel. The LCD display panel comprises a color film substrate, an electrode layer and a liquid crystal layer. The color film substrate comprises a first display area and a first peripheral area, wherein the first peripheral area comprises a shading layer, and the shading layer is arranged around the first display area. The liquid crystal layer is arranged between the electrode layer and the color film substrate. The liquid crystal layer includes an edge liquid crystal region for controlling light emission of the edge sub-pixel. The edge sub-pixel is a sub-pixel adjacent to a side of the first display region among sub-pixels constituting the edge pixel. The edge pixels are pixels adjacent to the side of the first display area, and the side of the first display area is the side of the first display area in the array direction of the sub-pixels. The first orthographic projection of the edge liquid crystal region on the color film substrate is overlapped with the shading layer. The area of the first orthographic projection other than the overlap covers the edge sub-pixels.

Optionally, the area of the overlapped region of the first orthographic projection and the light shielding layer is 1/4-1/2 of the area of the edge liquid crystal region.

Further, the area of the overlapping region is 1/3 of the area of the edge liquid crystal region.

In one possible implementation, the LCD display panel further includes an array substrate. The array substrate and the color film substrate are arranged oppositely. The electrode layer is arranged on the array substrate. The array substrate comprises a second display area and a second peripheral area. Wherein the second peripheral region is disposed around the second display region. The second display area is an area where the electrode layer is located. The second orthographic projection of the light shielding layer on the array substrate covers the second peripheral area and is overlapped with the second display area.

Optionally, the array substrate comprises a substrate. The substrate is provided with a thin film transistor and a metal wire for driving the thin film transistor. The thin film transistor and the metal wire are arranged in the second peripheral area. The metal trace is coupled to the gate of the thin film transistor.

In one possible implementation, the second peripheral area includes the first trace area. The first routing area is an area where the second peripheral area is located at the first side of the second display area. The first routing area is provided with a thin film transistor and a metal routing. The light shielding layer includes a first light shielding region. The first light shielding area is an area where the light shielding layer is located at a first side of the first display area. The edge sub-pixel adjacent to the first side of the first display region is a first edge sub-pixel. The edge liquid crystal area for controlling the first edge sub-pixel to emit light is a first edge liquid crystal area. And a third orthographic projection of the first edge liquid crystal region on the color film substrate is overlapped with the first shading region. The area of the third projection other than the overlap covers the first edge sub-pixel. The third orthographic projection of the first shading area on the array substrate covers the first wiring area and is overlapped with the second display area.

In another possible implementation, the second peripheral area further includes a second routing area. The second routing area is an area where the second peripheral area is located at a second side edge of the second display area. The second routing area is provided with a thin film transistor and a metal routing. The light-shielding layer includes a second light-shielding region. The second light shielding area is an area where the light shielding layer is located at a second side of the first display area. And the edge sub-pixel adjacent to the second side of the first display area is a second edge sub-pixel. And the edge liquid crystal area for controlling the light emission of the second edge sub-pixel is a second edge liquid crystal area. And a fourth orthographic projection of the second edge liquid crystal region on the color film substrate is overlapped with the second shading region. The area of the fourth projection other than the overlap covers the second edge sub-pixel. The fourth orthographic projection of the second light shielding area on the array substrate covers the second wiring area and is overlapped with the second display area.

Alternatively, the pixels of the first display region are arranged in an RGB arrangement manner. The first edge sub-pixel is a red pixel in an RGB arrangement mode. The second edge sub-pixel is a blue pixel in an RGB arrangement mode.

Optionally, the light-shielding layer is a black matrix or an RB stack.

In a second aspect, the present application provides a display device comprising an LCD display panel according to any of the first aspects.

In a third aspect, the present application provides a method for manufacturing an LCD display panel, including: an array substrate is formed, and an electrode layer is formed on the array substrate. And forming a color film substrate on the electrode layer, wherein the color film substrate comprises a first display area and a first peripheral area, the first peripheral area comprises a shading layer, and the shading layer is arranged around the first display area. And filling a liquid crystal layer between the electrode layer and the color film substrate. The liquid crystal layer comprises an edge liquid crystal area used for controlling the edge sub-pixel to emit light; the edge sub-pixel is a sub-pixel adjacent to the side of the first display area in each sub-pixel forming the edge pixel; the edge pixels are pixels adjacent to the side edge of the first display area, and the side edge of the first display area is the edge of the first display area in the array direction of the sub-pixels; the first orthographic projection of the edge liquid crystal region on the color film substrate is overlapped with the shading layer, and the region of the first orthographic projection except the overlapping region covers the edge sub-pixels.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

in the LCD display panel of the embodiment of the application, the first orthographic projection of the fringe liquid crystal region for controlling the light emission of the fringe sub-pixel on the color film substrate is overlapped with the light-shielding layer, and the region of the first orthographic projection except the overlapping region covers the fringe sub-pixel. In other words, the area of the edge sub-pixel, which is originally the same as the area of the edge liquid crystal region, is reduced, the liquid crystal in the region of the edge liquid crystal region close to the side of the first display region is blocked by the light blocking layer, and the unblocked portion is continuously used for controlling the light emission of the edge sub-pixel. Therefore, when an electric field generated by BM coupling is conducted to the edge sub-pixels, the influence of the generated vertical electric field is reduced, particularly, the liquid crystal of the shielded part of the edge liquid crystal area is not disturbed any more, so that the condition of edge bright lines is reduced, and the display performance of the LCD display panel is improved. In addition, the problem of coupling bright lines can be solved under the condition of avoiding grooving.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a plan view of an LCD display panel;

FIG. 2 is a cross-sectional view of a first possible implementation of an LCD display panel;

FIG. 3 is a cross-sectional view of a second possible implementation of an LCD display panel;

FIG. 4 is a perspective plan view of an LCD display panel according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of an LCD panel according to an embodiment of the present application;

fig. 6 is a schematic view of a color film layer provided in an embodiment of the present application;

fig. 7 is a flowchart of a method for manufacturing an LCD display panel according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. The term "coupled," as used herein to convey the intercommunication or interaction between different components, may include directly connected or indirectly connected through other components.

In this application, the terms "upper", "lower", and the like are defined with respect to the schematically-placed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts that are used for descriptive and clarity purposes and that will vary accordingly with respect to the orientation in which the components are placed in the drawings.

Fig. 1 is an LCD display panel according to an embodiment of the present disclosure. As shown in fig. 1, the LCD display panel includes a bezel area 10 and a display area 20.

Fig. 2 is a cross-sectional view of a first possible implementation of an LCD display panel. Fig. 2 is a cross-sectional view of fig. 1 taken along line a-a. As shown in fig. 2, the LCD display panel includes a backlight 13, an array substrate 12 and a color filter substrate 11, which are sequentially distributed from bottom to top. The color film substrate 11 includes a BM111 and a color film layer 112. The array substrate 12 is provided with metal traces 121 in a region corresponding to the frame region 10, and the array substrate 12 is provided with an electrode layer 122 in a region corresponding to the display region 20. A liquid crystal layer 123 is disposed between the array substrate 12 and the color film layer 112. The metal trace 121 can control the polarization direction of the liquid crystal in the liquid crystal layer 123 through the control electrode layer 122, so as to control the backlight of the backlight 12 irradiating the color film layer 112. After reaching the color film layer 112, the backlight emits the required light after being transmitted by the color film layer 112.

With reference to fig. 2, when the frame area 10 is very narrow, for example, the width of the frame area 10 is 1.08mm, the metal trace 121 becomes very dense, so that the overlapping area between the metal trace 121 and the BM111 increases. After the metal wire 121 is powered on, the gate voltage is about-8V for a long time, and a parallel plate capacitor is formed with the BM111, so that the BM111 is coupled to generate electrons. Since BM111 is a carbon matrix hybrid polymer, it is very conductive. After the BM111 contacts the sub-pixel 1121 (e.g., red pixel) of the color film 112 at the edge of the display region 20, the sub-pixel 1121 is easily charged to form a vertical electric field. The presence of the vertical electric field causes the liquid crystal at the edge of the display area 20 to be abnormally deflected to form a liquid crystal display disorder area, thereby generating a bright line at the edge of the display area 20.

To address the above problem of coupling bright lines, fig. 3 is a cross-sectional view of a possible implementation of a LCD display panel. As shown in fig. 3, the grooves 113 are formed in the BM111, so that electrons transmitted from the BM111 to the sub-pixels 1121 are blocked by the grooves 113, thereby solving the problem of coupling bright lines, and in order to prevent light from the backlight 13 from passing through the grooves 113, the entire metal 124 is generally required to be disposed on the array substrate 12 for shielding. This approach is only applicable to scenes where the border area 10 is wide. When the frame area 10 is narrow, the BM111 cannot be notched. If the groove is opened by force, the entire metal 124 is not laid in the space on the array substrate 12, and therefore, the backlight of the light source 13 leaks light through the slit. I.e. slotted, is not suitable for very narrow border products.

Under the condition of avoiding the grooving, for solving the technical problem of coupling bright line, this application provides an LCD display panel. The LCD display panel provided by the present application will be described in detail with reference to fig. 4 to 6.

Fig. 4 is a perspective view of an LCD display panel according to an embodiment of the present application. As shown in fig. 4, the LCD display panel includes an edge region 10 and a display region 20.

Illustratively, FIG. 5 may be a cross-sectional view taken along A1-A1 of FIG. 4, or a cross-sectional view taken along A2-A2, a cross-sectional view taken along B1-B1, and a cross-sectional view taken along B2-B2.

As shown in fig. 4 and 5, the LCD display panel includes a color filter substrate 11, an electrode layer 122, and a liquid crystal layer 123 disposed between the electrode layer 122 and the color filter substrate 11.

The color filter substrate 11 includes a first display region 102 (corresponding to the display region 20 in fig. 4) and a first peripheral region 101, i.e., a region (corresponding to the frame region 10 in fig. 4) except the first display region 102 in fig. 4.

The first display region 102 may include a color film layer 112. As shown in fig. 6, the pixels of the color film layer 112 may be arranged in the first display region 102 according to the RGB arrangement shown in fig. 6, so that a single pixel is composed of R, G, B three sub-pixels.

The first peripheral region 101 includes a light-shielding layer 111, and the light-shielding layer 111 is provided around the first display region 102. Specifically, the light-shielding layer 111 may be implemented by a black matrix. It should be appreciated that to avoid backlight transmission from the gaps between the pixels and sub-pixels in the color film layer 112, which would affect display performance, the black matrix may also cover the gaps between the pixels and sub-pixels in the color film layer 112. In other embodiments, the light shielding layer 111 may also be implemented by stacking red and blue pixels (RB), which is not specifically limited in this embodiment.

The liquid crystal layer 123 includes an edge liquid crystal region 1231 for controlling light emission of the edge sub-pixel 1121. The edge sub-pixel 1121 is a sub-pixel adjacent to the side of the first display region 102 in each sub-pixel constituting the edge pixel. The edge pixels are pixels adjacent to the side of the first display region 102. The side of the first display region 102 is the side of the first display region 102 in the array direction of the sub-pixels.

It should be understood that the array direction of the sub-pixels refers to the arrangement direction of the sub-pixels in the pixels of the first display region 102. For example, referring to fig. 4, as shown in fig. 6, the pixels of the first display region 102, i.e., the pixels of the color film layer 112, may be arranged in an RGB arrangement from the left side to the right side as shown in fig. 4, so that the sub-pixels constituting a single pixel include R, G, B three sub-pixels, and the array direction of R, G, B three sub-pixels is a horizontal direction from the left to the right in the first display region 102 shown in fig. 4. It should be understood that in other embodiments, the array direction of the sub-pixels may also be the vertical direction from top to bottom in the first display area 102 shown in fig. 4. For convenience of explanation, the following description will be given taking the horizontal direction as an example.

The first orthographic projection of the edge liquid crystal region 1231 on the color filter substrate 11 overlaps the light-shielding layer 111, and the region of the first orthographic projection except the overlap covers the edge sub-pixel 1121.

In a specific implementation process, the area of the overlapping region of the first orthographic projection and the light shielding layer 111 is 1/4-1/2 of the area of the edge liquid crystal region 1231, such as 1/4, 1/3, 1/2 and the like. Therefore, not only can the influence of the vertical electric field be reduced when electrons generated by coupling are conducted to the edge sub-pixel 1121 of the display region, but also the normal display of the edge sub-pixel 1121 can be ensured, and the influence on the display effect is reduced. Preferably, the area of the overlapping region is 1/3 of the area of the fringe liquid crystal region 1231. Thus, the influence of the vertical electric field can be reduced better, and the influence on the display effect is reduced at the same time.

It should be understood that, as shown in fig. 2, the edge liquid crystal region 1231 originally used for controlling the light emission of the edge sub-pixel 1121 overlaps the edge sub-pixel 1121 in an orthographic projection on the color filter substrate 11, and does not overlap the light-shielding layer 111. Therefore, on the basis of the LCD display panel shown in fig. 2, the LCD panel shown in fig. 5 can be obtained by reducing the width of the edge sub-pixels 1121 and correspondingly increasing the width of the light-shielding layer 111. Illustratively, fig. 6 shows a color film layer 112 with a reduced width of the edge sub-pixel 1121. As can be seen from fig. 6, the R sub-pixel (i.e., the edge sub-pixel 1121) of the first pixel on the left side has a significantly reduced width compared to the G sub-pixel and the B sub-pixel.

Accordingly, in the LCD display panel shown in fig. 4, the area of the edge sub-pixel 1121, which is originally the same as the area of the edge liquid crystal region 1231, is reduced, the liquid crystal in the region of the edge liquid crystal region 1231 near the side of the first display region 102 is blocked by the light blocking layer 111, and the unblocked portion is continuously used for controlling the light emission of the edge sub-pixel 1121. Therefore, when the electric field generated by BM coupling is conducted to the edge sub-pixel 1121, the influence of the generated vertical electric field is reduced, and especially, the liquid crystal in the shielded portion of the edge liquid crystal region 1231 is not disturbed any more, so that the condition of edge bright lines is reduced, and the display performance of the LCD display panel is improved.

In some embodiments of the present disclosure, in order to facilitate the arrangement of the electrode layer 122 and the metal traces, as shown in fig. 5, the LCD display panel further includes an array substrate 12 disposed opposite to the color filter substrate 11. The electrode layer 122 is disposed on the array substrate 12.

The array substrate 12 includes a second display region 202 and a second peripheral region 201. Wherein the second peripheral area 201 is arranged around the second display area 202. The second display region 202 is a region where the electrode layer 122 is located. The second orthographic projection of the light shielding layer 111 on the array substrate 12 covers the second peripheral area 201 and overlaps the second display area 202.

In a specific implementation process, the color film substrate 11 and the array substrate 12 are arranged oppositely and sealed by a frame sealing adhesive tape. An electrode layer 122 is disposed on the array substrate 12, the electrode layer 122 includes a pixel electrode 1222 and a common electrode 1221, a liquid crystal layer 123 is filled between the common electrode 1221 and the color filter substrate 11 in a region facing the common electrode 1221, and the pixel electrode 1222 and the common electrode 1221 are used for controlling liquid crystal deflection in the liquid crystal layer 123.

In one implementation, the array substrate 12 includes a substrate. A thin film transistor (not shown) and a metal trace 121 for driving the thin film transistor are disposed on the substrate. The tft and the metal trace 121 are disposed in the second peripheral region 201. A passivation layer 125 is formed on the substrate above the thin film transistor, the metal trace 121, and the pixel electrode 1222 after the thin film transistor, the metal trace 121, and the pixel electrode 1222. The common electrode 1221 is disposed over the passivation layer 125.

It should be noted that, under the influence of the resolution of the LCD display panel and the size of the screen, the metal routing 121 and the thin film transistor can be laid only on one side of the LCD display panel to realize single-side driving, and at this time, BM only needs to be laid on one side, so that there is a problem of coupling bright lines only on one side; metal wiring 121 and a thin film transistor can be laid on two sides of the LCD panel to realize bilateral driving, and BM needs to be laid on two sides at the moment, so that the problem of coupling bright lines exists on two sides.

Based on this, the present application provides the following examples:

example one: the method is used for solving the problem of single-side coupling bright lines. Specifically, the second peripheral area 201 includes a first trace area; the first routing area is an area where the second peripheral area 201 is located at the first side of the second display area 202; the first trace region is provided with a thin film transistor and a metal trace 121. The light-shielding layer 111 includes a first light-shielding region; the first light-shielding region is a region where the light-shielding layer 111 is located at a first side of the first display region 102. That is, the first side of the first display region 102 is coupled with the bright line.

At this time, the edge sub-pixel 1121 adjacent to the first side of the first display region 102 is the first edge sub-pixel 1121; the edge liquid crystal region 1231 for controlling light emission of the first edge subpixel 1121 is the first edge liquid crystal region 1231.

A third orthographic projection of the first edge liquid crystal region 1231 on the color filter substrate 11 overlaps the first light-shielding region, and a region of the third projection except the overlapping covers the first edge sub-pixel 1121.

The third orthographic projection of the first light-shielding area on the array substrate 12 covers the first routing area and overlaps with the second display area 202.

It should be understood that, in a left-to-right lateral direction as shown in fig. 4, the first side of the first display area 102 may be the left side or the right side of the first display area 102. Accordingly, the second side of the first display area 102 is the other side.

Example two: the method is used for solving the problem of bilateral coupling bright lines. Specifically, on the basis of the first example, the second peripheral area 201 further includes a second routing area; the second routing area is an area where the second peripheral area 201 is located at a second side of the second display area 202; the second trace region is disposed with a thin film transistor and a metal trace 121. The light-shielding layer 111 includes a second light-shielding region; the second light-shielding region is a region where the light-shielding layer 111 is located at a second side of the first display region 102. That is, the bright lines are coupled to both the first side of the first display region 102 and the second side of the first display region 102.

In this case, in addition to the first example, the second side of the first display area 102 is implemented with reference to the first side of the first display area 102, which is specifically as follows:

the edge sub-pixel 1121 adjacent to the second side of the first display region 102 is a second edge sub-pixel 1121; the edge liquid crystal region 1231 for controlling the light emission of the second edge sub-pixel 1121 is the second edge liquid crystal region 1231.

A fourth orthographic projection of the second edge liquid crystal region 1231 on the color filter substrate 11 overlaps with the second light shielding region, and a region of the fourth projection except the overlap covers the second edge sub-pixel 1121.

The fourth orthographic projection of the second light shielding area on the array substrate 12 covers the second routing area and overlaps with the second display area 202.

In a specific implementation process, the LCD panel in example two can be obtained by reducing the widths of the first edge sub-pixel 1121 and the second edge sub-pixel 1121, and correspondingly increasing the widths of the first light-shielding region and the second light-shielding region. Illustratively, fig. 6 shows the color film layer 112 with reduced width of the first edge sub-pixel 1121 and the second edge sub-pixel 1121. As can be seen from fig. 6, the R sub-pixel (i.e., the first edge sub-pixel 1121) of the first pixel on the left side has a significantly reduced width compared to the G sub-pixel and the B sub-pixel. The B sub-pixel (i.e., the second edge sub-pixel 1121) of the first pixel on the right side has a significantly reduced width compared to the G sub-pixel and the R sub-pixel.

It should be understood that, in other embodiments, when the array direction of the sub-pixels is the vertical direction from top to bottom in the first display area 102 shown in fig. 4, the first side of the first display area 102 may be the upper side or the lower side of the first display area 102. Accordingly, the second side of the first display area 102 is the other side. And will not be described in detail herein.

Optionally, the LCD display panel further includes a backlight 13, and the backlight 13 is disposed opposite to the array substrate 12.

Based on the same inventive concept, the present embodiment also provides a display device, for example, an LCD display, including the above LCD display panel.

Based on the same inventive concept, the present embodiment further provides a method for manufacturing an LCD display panel, as shown in fig. 7, including:

step S101: an array substrate 12 is formed, and an electrode layer 122 is formed on the array substrate 12.

Step S102: a color filter substrate 11 is formed on the electrode layer 122, the color filter substrate 11 includes a first display region 102 and a first peripheral region 101, the first peripheral region 101 includes a light-shielding layer 111, and the light-shielding layer 111 is disposed around the first display region 102.

Step S103: filling a liquid crystal layer 123 between the electrode layer 122 and the color film substrate 11; the liquid crystal layer 123 includes an edge liquid crystal region 1231 for controlling light emission of the edge sub-pixel 1121; the edge sub-pixel 1121 is a sub-pixel adjacent to the side of the first display region 102 in each sub-pixel constituting the edge pixel; the edge pixel is a pixel adjacent to a side of the first display region 102, and the side of the first display region 102 is a side of the first display region 102 in the array direction of the sub-pixels; the edge liquid crystal region 1231 is on the color filter substrate 11.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An LCD display panel, comprising:

the color film substrate comprises a first display area and a first peripheral area, wherein the first peripheral area comprises a shading layer which is arranged around the first display area;

an electrode layer;

the liquid crystal layer is arranged between the electrode layer and the color film substrate;

the liquid crystal layer comprises an edge liquid crystal area used for controlling the edge sub-pixel to emit light; the edge sub-pixels are sub-pixels adjacent to the side of the first display area in each sub-pixel forming an edge pixel, and the edge pixel is a pixel adjacent to the side of the first display area; the side edge of the first display area is the edge of the first display area in the array direction of the sub-pixels;

and a first orthographic projection of the edge liquid crystal region on the color film substrate is overlapped with the shading layer, and the region except the overlapped part of the first orthographic projection covers the edge sub-pixel.

2. The LCD display panel according to claim 1, wherein an area of an overlapping region of the first orthographic projection and the light shielding layer is 1/4-1/2 of an area of the edge liquid crystal region.

3. The LCD display panel of claim 2, wherein the area of the overlap region is 1/3 times the area of the edge liquid crystal region.

4. The LCD display panel of claim 1, further comprising an array substrate;

the array substrate and the color film substrate are arranged oppositely;

the electrode layer is arranged on the array substrate;

the array substrate comprises a second display area and a second peripheral area, wherein the second peripheral area is arranged around the second display area; the second display area is an area where the electrode layer is located;

and a second orthographic projection of the light shielding layer on the array substrate covers the second peripheral area and is overlapped with the second display area.

5. The LCD display panel of claim 4, wherein the array substrate comprises a substrate; a thin film transistor and a metal wire for driving the thin film transistor are arranged on the substrate; the thin film transistor and the metal wire are arranged in the second peripheral area;

the metal trace is coupled with a gate of the thin film transistor.

6. The LCD display panel of claim 5, wherein the second peripheral region comprises a first trace region; the first routing area is an area of the second peripheral area, which is located at a first side of the second display area; the first routing area is provided with the thin film transistor and the metal routing;

the light shielding layer comprises a first light shielding area; the first light shielding area is an area where the light shielding layer is positioned at a first side edge of the first display area;

the edge sub-pixel adjacent to the first side of the first display area is a first edge sub-pixel; the edge liquid crystal area used for controlling the first edge sub-pixel to emit light is a first edge liquid crystal area;

a third orthographic projection of the first edge liquid crystal region on the color film substrate is overlapped with the first shading region, and a region except the overlapped region of the third projection covers the first edge sub-pixel;

the third orthographic projection of the first shading area on the array substrate covers the first wiring area and is overlapped with the second display area.

7. The LCD display panel of claim 6, wherein the second peripheral region further comprises a second routing region; the second routing area is an area where the second peripheral area is located at a second side edge of the second display area; the second routing area is provided with the thin film transistor and the metal routing;

the light shielding layer comprises a second light shielding area; the second shading area is an area where the shading layer is positioned at a second side edge of the first display area;

the edge sub-pixel adjacent to a second side of the first display area is a second edge sub-pixel; the edge liquid crystal area used for controlling the second edge sub-pixel to emit light is a second edge liquid crystal area;

a fourth orthographic projection of the second edge liquid crystal region on the color film substrate is overlapped with the second shading region, and a region except the overlapped region of the fourth projection covers the second edge sub-pixel;

and a fourth orthographic projection of the second light shielding area on the array substrate covers the second routing area and is overlapped with the second display area.

8. The LCD display panel according to claim 7, wherein the pixels of the first display region are arranged in an RGB arrangement;

the first edge sub-pixel is a red pixel in the RGB arrangement mode, and the second edge sub-pixel is a blue pixel in the RGB arrangement mode.

9. The LCD display panel according to any one of claims 1 to 8, wherein the light-shielding layer is a black matrix or an RB stack.

10. A display device comprising the LCD display panel according to any one of claims 1 to 9.

11. A method for manufacturing an LCD display panel, comprising:

forming an array substrate, and forming an electrode layer on the array substrate;

forming a color film substrate on the electrode layer, wherein the color film substrate comprises a first display area and a first peripheral area, the first peripheral area comprises a shading layer, and the shading layer is arranged around the first display area;

filling a liquid crystal layer between the electrode layer and the color film substrate; wherein the liquid crystal layer comprises an edge liquid crystal area for controlling the light emission of the edge sub-pixel; the edge sub-pixels are sub-pixels which are adjacent to the side edge of the first display area in the sub-pixels forming the edge pixels; the edge pixel is a pixel adjacent to a side of the first display region, and the side of the first display region is a side of the first display region in the array direction of the sub-pixels; and a first orthographic projection of the edge liquid crystal region on the color film substrate is overlapped with the shading layer, and the region except the overlapped part of the first orthographic projection covers the edge sub-pixel.