Liquid crystal display panel and manufacturing method therefor, and display apparatus

Abstract

A liquid crystal display panel and a manufacturing method therefor, and a display apparatus, which belong to the technical field of display. The liquid crystal display panel comprises an array substrate (20) and a color filter substrate (10) connected to the array substrate (20), wherein the array substrate (20) is provided with a plurality of pixel regions, each pixel region comprising a transmissive region (1) and a reflective region (2), which are connected to each other; the thickness of the color filter substrate (10) in the reflective region (2) is greater than the thickness of the color filter substrate (10) in the transmissive region (1), and the surface of the color filter substrate (10) away from the array substrate (20) is a planar surface; and the ratio of the distance between the color filter substrate (10) in the transmissive region (1) and the array substrate (20) to the distance between the color filter substrate (10) in the reflective region (2) and the array substrate (20) is 1.3 to 2.5. The probability of generating light leakage and speckle defects can be reduced, thereby improving the display effect of the liquid crystal display panel.

Description

Liquid crystal display panel, manufacturing method thereof, and display device Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a liquid crystal display panel, a manufacturing method thereof, and a display device. Background Art

[0002] Liquid crystal display panels are an important component of display devices and are commonly used in devices such as mobile phones, monitors or tablet computers.

[0003] In the related art, there is a semi-transmissive and semi-reflective liquid crystal display panel, which includes an array substrate, a color filter substrate connected to the array substrate, and a liquid crystal layer located between the array substrate and the color filter substrate. The array substrate has multiple pixel areas, each of which includes a transmissive area capable of transmitting light and a reflective area capable of reflecting light. The thickness of the array substrate in the reflective area is generally greater than that of the array substrate in the transmissive area, and the thickness of the color filter substrate is uniform. In this way, the thickness of the liquid crystal layer in the reflective area is less than that of the liquid crystal layer in the transmissive area, so that the optical path difference of light passing through the liquid crystal layer in the reflective area and the liquid crystal layer in the transmissive area is the same, thereby ensuring a better display effect of the liquid crystal display panel and realizing the semi-transmissive and semi-reflective function of the liquid crystal display panel.

[0004] However, when the alignment layer on the array substrate is subjected to friction alignment, due to the large difference in thickness between the array substrate in the reflective area and the array substrate in the transmissive area, the alignment effect of the alignment layer on the edge of the array substrate in the transmissive area is poor, causing the liquid crystal molecules at the edge of the transmissive area to be arranged in a disorderly manner, resulting in light leakage, and causing pitting defects in the corresponding area of ​​the liquid crystal display panel, affecting the display effect of the liquid crystal display panel.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide a liquid crystal display panel, a method for manufacturing the same, and a display device, which can reduce the probability of light leakage and pitting defects and improve the display effect of the liquid crystal display panel. The technical solution is as follows:

[0007] On the one hand, a liquid crystal display panel is provided, comprising an array substrate, a color film substrate connected to the array substrate, and a liquid crystal layer located between the array substrate and the color film substrate; the array substrate has multiple pixel areas, each of the pixel areas includes a connected transmission area and a reflection area; the thickness of the color film substrate in the reflection area is greater than the thickness of the color film substrate in the transmission area, and the surface of the color film substrate away from the array substrate is flat; the ratio of the distance between the color film substrate in the transmission area and the array substrate to the distance between the color film substrate in the reflection area and the array substrate is 1.3 to 2.5.

[0008] Optionally, the color filter substrate includes a first base substrate, a color filter layer and a raising layer, the color filter layer and the raising layer are stacked in sequence on a side of the first base substrate close to the array substrate in a direction close to the array substrate, and the raising layer is located in the reflective area.

[0009] Optionally, the color filter substrate further includes a covering layer and a spacer layer, the covering layer and the spacer layer are sequentially located on the side of the color filter layer close to the array substrate in the direction close to the array substrate, the raising layer is located between the covering layer and the spacer layer, and the raising layer is integrated with the covering layer or integrated with the spacer layer.

[0010] Optionally, a thickness of the array substrate in the reflective area is greater than a thickness of the array substrate in the transmissive area.

[0011] Optionally, a difference between the thickness of the array substrate in the reflective area and the thickness of the array substrate in the transmissive area is the same as a difference between the thickness of the color filter substrate in the reflective area and the thickness of the color filter substrate in the transmissive area.

[0012] Optionally, the difference between the thickness of the array substrate in the reflective area and the thickness of the array substrate in the transmissive area is 0.6 μm to 1.5 μm, and the difference between the thickness of the color film substrate in the reflective area and the thickness of the color film substrate in the transmissive area is 0.6 μm to 1.5 μm.

[0013] Optionally, the thickness of the array substrate in the reflective area is the same as the thickness of the array substrate in the transmissive area.

[0014] Optionally, a difference between a thickness of the color filter substrate in the reflective area and a thickness of the color filter substrate in the transmissive area is 1.5 μm to 2.5 μm.

[0015] Optionally, the array substrate includes a second base substrate, a driving circuit layer, a passivation layer, a transmissive electrode layer, and a reflective electrode layer. The second base substrate, the driving circuit layer, and the passivation layer are stacked sequentially in a direction close to the color filter substrate. The reflective electrode layer and the transmissive electrode layer are both located on a side of the passivation layer close to the color filter substrate. The surface of the reflective electrode layer close to the color filter substrate is flush with the surface of the transmissive electrode layer close to the color filter substrate.

[0016] Optionally, the array substrate further includes a first alignment layer, the first alignment layer being adjacent to the liquid crystal layer, the surface of the first alignment layer close to the liquid crystal layer having a plurality of first strip-shaped grooves, and the angle between the extension direction of the first strip-shaped grooves and the extension direction of the boundary line between the transmission area and the reflection area is 5° to 30°.

[0017] Optionally, the liquid crystal layer includes a plurality of liquid crystal molecules, the material of the liquid crystal molecules is electrically controlled birefringent liquid crystal, and the birefringence of the electrically controlled birefringent liquid crystal is 0.1 to 0.12.

[0018] Optionally, the liquid crystal layer includes a surfactant and a plurality of liquid crystal molecules, the material of the liquid crystal molecules is polymerizable liquid crystal, and the surfactant is used to align the polymerizable liquid crystal.

[0019] On the other hand, a method for manufacturing a liquid crystal display panel is provided, comprising: connecting an array substrate and a color film substrate, the array substrate having multiple pixel areas, each of the pixel areas including a connected transmissive area and a reflective area, the thickness of the color film substrate in the reflective area being greater than the thickness of the color film substrate in the transmissive area, and a surface of the color film substrate away from the array substrate being a plane, the ratio of the distance between the color film substrate in the transmissive area and the array substrate to the distance between the color film substrate in the reflective area and the array substrate being 1.3 to 2.5; and forming a liquid crystal layer between the array substrate and the color film substrate.

[0020] Optionally, the liquid crystal layer includes a surfactant and a plurality of liquid crystal molecules, the material of the liquid crystal molecules is a polymerizable liquid crystal, and the surfactant is used to align the polymerizable liquid crystal. The method further includes: heating the liquid crystal layer at 100° C. to 120° C. for 10 to 30 minutes; irradiating the liquid crystal layer with a first ultraviolet light at 100° C. to 120° C. for 3 to 5 minutes, wherein the first ultraviolet light is linearly polarized light and has an intensity of 35 mW / cm 2 Up to 50mW / cm 2 The liquid crystal layer is cooled to 25°C to 27°C, and the liquid crystal layer is irradiated with a second ultraviolet light for 10 to 15 minutes, wherein the second ultraviolet light is non-linearly polarized light and the intensity of the second ultraviolet light is 35 mW / cm 2 Up to 50mW / cm 2 .

[0021] On the other hand, a display device is provided, comprising a backlight module and any one of the aforementioned liquid crystal display panels, wherein the backlight module provides a light source for the liquid crystal display panel.

[0022] The technical solutions provided by the embodiments of the present disclosure have the following beneficial effects:

[0023] In the disclosed embodiment, when the ratio of the distance between the color filter substrate in the transmissive region and the array substrate to the distance between the color filter substrate in the reflective region and the array substrate is between 1.3 and 2.5, the thickness of the color filter substrate in the reflective region is greater than that in the transmissive region, and the surface of the color filter substrate away from the array substrate is flat. This reduces the difference in thickness between the array substrate in the reflective region and the array substrate in the transmissive region compared to a case where the color filter substrates have uniform thickness. When the alignment layer on the array substrate is subsequently rubbed and aligned, the alignment layer on the array substrate at the edge of the transmissive region is well aligned, resulting in orderly alignment of the liquid crystal molecules at the edge of the transmissive region. This reduces the likelihood of light leakage and pitting defects, thereby improving the display quality of the liquid crystal display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] FIG1 is a schematic diagram of a cross-sectional structure of a liquid crystal display panel in the related art;

[0026] FIG2 is a schematic diagram of a display effect of a liquid crystal display panel in the related art;

[0027] FIG3 is a schematic diagram of a cross-sectional structure of a liquid crystal display panel provided by an embodiment of the present disclosure;

[0028] FIG4 is a schematic diagram of a top view of a liquid crystal display panel provided in an embodiment of the present disclosure;

[0029] FIG5 is a schematic diagram of a partial structure of a color filter substrate provided in an embodiment of the present disclosure;

[0030] FIG6 is a schematic diagram of a partial structure of another color filter substrate provided in an embodiment of the present disclosure;

[0031] FIG7 is a schematic diagram of a partial structure of a liquid crystal display panel provided by an embodiment of the present disclosure;

[0032] FIG8 is a schematic diagram of a partial structure of another liquid crystal display panel provided by an embodiment of the present disclosure;

[0033] FIG9 is a schematic cross-sectional view of another liquid crystal display panel provided in an embodiment of the present disclosure;

[0034] FIG10 is a flow chart of a method for manufacturing a liquid crystal display panel according to an embodiment of the present disclosure;

[0035] FIG11 is a flow chart of another method for manufacturing a liquid crystal display panel provided by an embodiment of the present disclosure;

[0036] FIG12 is a schematic structural diagram of a display device provided in an embodiment of the present disclosure.

[0037] Legend: x, first direction y, second direction 1, transmissive area 2, reflective area 1a, abnormal pixel 10, color filter substrate 10A, first surface 11, first base substrate 12, color filter layer 13, spacer layer 14, cover layer 15, spacer layer 1000, liquid crystal display panel 1001, backlight module 20, array substrate 21, second base substrate 22, driving circuit layer 221, gate insulating layer 222, data line 223, gate line 224, pixel driving circuit 23, passivation layer 24, transmissive electrode layer 241, transmissive electrode 25, reflective electrode layer 251, reflective electrode 26, insulating layer 261, insulating block 30, liquid crystal layer 31, liquid crystal molecules 40, first alignment layer 401, first strip grooves 41, second alignment layer 411, second strip grooves DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0039] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings understood by persons of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," "third," and similar terms used in the patent specification and claims of this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish between different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects preceding the term "include" or "comprising" include the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," "right," "top," and "bottom" are used solely to indicate relative positional relationships. When the absolute position of the described objects changes, the relative positional relationships may also change accordingly. Furthermore, "A and / or B" indicates the existence of three situations: A, B, and A and B.

[0040] Figure 1 is a schematic diagram of the cross-sectional structure of a liquid crystal display panel in the related art. As shown in Figure 1, in the related art, the liquid crystal display panel includes an array substrate 20, a color filter substrate 10 disposed opposite the array substrate 20, and a liquid crystal layer 30 located between the array substrate 20 and the color filter substrate 10. The array substrate 20 includes multiple pixel regions, each of which includes a connected transmissive region 1 and a reflective region 2. The transmissive region 1 can display images by transmitting light emitted by the display device's own backlight source, while the reflective region 2 can display images by reflecting light emitted by an external ambient light source. The thickness of the array substrate 20 in the reflective region 2 is greater than that in the transmissive region 1, and the thickness of the color filter substrate 10 is uniform. The liquid crystal layer 30 includes multiple liquid crystal molecules 31.

[0041] The thickness of the liquid crystal layer 30 in the reflective region 2 is smaller than that in the transmissive region 1. This ensures that the optical path length difference between light passing through the liquid crystal layer 30 in the reflective region 2 and the liquid crystal layer 30 in the transmissive region 1 is the same, thereby ensuring a better display quality for the liquid crystal display panel and realizing the transflective function of the liquid crystal display panel. Liquid crystal display panels with transflective functions can maintain display contrast and reduce power consumption in bright light environments, and can use a backlight to supplement the display in low-brightness environments.

[0042] As shown in FIG. 1 , the array substrate 20 further includes a first alignment layer 40 adjacent to the liquid crystal layer 30 , and the color filter substrate 10 further includes a second alignment layer 41 adjacent to the liquid crystal layer 30 .

[0043] When the first alignment layer 40 on the array substrate 20 is subjected to friction alignment, due to the large difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1, the alignment effect of the first alignment layer 40 at the edge of the transmissive area 1 is poor, causing the liquid crystal molecules 31 at the edge of the transmissive area 1 to be arranged in a disorderly manner, resulting in light leakage, causing pitting defects in the corresponding area of ​​the liquid crystal display panel, and affecting the display effect of the liquid crystal display panel.

[0044] Figure 2 is a schematic diagram of the display effect of a liquid crystal display panel in the related art. As shown in Figure 2, when viewing the pixels of the liquid crystal display panel under a microscope, an abnormal pixel 1a can be observed, which is abnormally bright. The brightness of abnormal pixel 1a is much higher than that of other normal pixels of the same color. Abnormal pixel 1a is caused by poor alignment of the first alignment layer 40 at the edge of the transmissive region 1, resulting in a disordered arrangement of the liquid crystal molecules 31 and light leakage.

[0045] Figure 3 is a schematic cross-sectional view of a liquid crystal display panel provided by an embodiment of the present disclosure. As shown in Figure 3, the liquid crystal display panel includes an array substrate 20, a color filter substrate 10 connected to the array substrate 20, and a liquid crystal layer 30 located between the array substrate 20 and the color filter substrate 10.

[0046] FIG4 is a schematic top view of a liquid crystal display panel according to an embodiment of the present disclosure. FIG3 may be a cross-sectional view taken along line AA of FIG4. As shown in FIG4, an array substrate 20 includes a plurality of pixel regions, each of which includes a connected transmissive region 1 and a reflective region 2.

[0047] As shown in FIG3 , the thickness H3 of the color filter substrate 10 in the reflective region 2 is greater than the thickness H4 of the color filter substrate 10 in the transmissive region 1. The first surface 10A is a flat surface, which is the surface of the color filter substrate 10 away from the array substrate 20. The ratio of the distance D1 between the color filter substrate 10 in the transmissive region 1 and the array substrate 20 to the distance D2 between the color filter substrate 10 in the reflective region 2 and the array substrate 20 is 1.3 to 2.5.

[0048] Here, the difference between the distance D1 between the color filter substrate 10 and the array substrate 20 in the transmissive area 1 and the distance D2 between the color filter substrate 10 and the array substrate 20 in the reflective area 2 is the difference between the thickness of the liquid crystal layer 30 in the transmissive area 1 and the thickness of the liquid crystal layer 30 in the reflective area 2.

[0049] It should be noted that there is a certain distance between the transmission areas 1 of two adjacent pixel areas in FIG. 4 .

[0050] In the disclosed embodiment, when the ratio of the distance D1 between the color filter substrate 10 and the array substrate 20 in the transmissive region 1 to the distance D2 between the color filter substrate 10 and the array substrate 20 in the reflective region 2 is between 1.3 and 2.5, the thickness H3 of the color filter substrate 10 in the reflective region 2 is greater than the thickness H4 of the color filter substrate 10 in the transmissive region 1, and the surface of the color filter substrate 10 away from the array substrate 20 is planar. This reduces the difference between the thickness H1 of the array substrate 20 in the reflective region 2 and the thickness H2 of the array substrate 20 in the transmissive region 1 compared to a case where the color filter substrate 10 has a uniform thickness. When the alignment layer on the array substrate 20 is subsequently rubbed and aligned, the alignment layer on the array substrate 20 at the edge of the transmissive region 1 is well aligned, resulting in orderly alignment of the liquid crystal molecules at the edge of the transmissive region 1. This reduces the likelihood of light leakage and pitting defects, thereby improving the display quality of the liquid crystal display panel.

[0051] As shown in Figure 3, the color filter substrate 10 includes a first base substrate 11, a color filter layer 12, and a spacer layer 13. The color filter layer 12 and the spacer layer 13 are stacked sequentially on the side of the first base substrate 11 near the array substrate 20, along the direction toward the array substrate 20. The spacer layer 13 is located in the reflective region 2. That is, in each pixel area, the reflective region 2 and the spacer layer 13 cover the same area. Due to the presence of the spacer layer 13, the thickness of the color filter substrate 10 in the reflective region 2 can be greater than that in the transmissive region 1.

[0052] Optionally, the color filter layer 12 may include a plurality of color photoresists, such as red (R) photoresist, green (G) photoresist, and blue (B) photoresist, and the color photoresists may enable the liquid crystal display panel to emit light of different colors to display images.

[0053] For example, the color filter substrate 10 may further include a black matrix, which is located between the plurality of color photoresists. The black matrix can increase color contrast and prevent light leakage.

[0054] As shown in FIG3 , the color filter substrate 10 further includes an over-cover (OC) layer 14 and a photo spacer (PS) layer 15. The over-cover layer 14 and the photo spacer layer 15 are sequentially positioned on a side of the color filter layer 12 near the array substrate 20, with the elevation layer 13 positioned between the over-cover layer 14 and the photo spacer layer 15. The over-cover layer 14 can make the surface of the color filter substrate 10 near the liquid crystal layer 30 more flat.

[0055] Optionally, the spacer layer 15 may include multiple columnar structures. For example, the spacer layer 15 may include multiple cylindrical structures, truncated cone structures, or prism-shaped structures. In this way, the spacer layer 15 can support the array 20 and the color filter substrate 10, reducing the probability of deformation of the liquid crystal display panel due to external forces, thereby improving the reliability of the liquid crystal display panel.

[0056] Optionally, the stepping layer 13 is integral with the covering layer 14 or the spacer layer 15. Here, "integrated" refers to a unitary structure made of the same material and / or through the same process. The stepping layer 13 is integral with the covering layer 14 or the spacer layer 15, allowing for simultaneous production of the covering layer 14 and the stepping layer 13, or the spacer layer 15 and the stepping layer 13, thereby saving process costs.

[0057] FIG5 is a partial structural diagram of a color filter substrate provided by an embodiment of the present disclosure. As shown in FIG5 , an OC mask can be used to simultaneously manufacture the padding layer 13 during the manufacturing process of the cover layer 14 .

[0058] Exemplarily, the OC mask is a half-tone mask (HTM). As shown in FIG5 , a film pattern with a groove structure is formed in the transmissive region 1 during the production of the cover layer 14 using a half-tone mask process. The thicker portion of the film pattern located in the reflective region 2 can be referred to as the padding layer 13. In other words, the padding layer 13 is integral with the cover layer 14.

[0059] FIG6 is a partial structural diagram of another color filter substrate provided by an embodiment of the present disclosure. As shown in FIG6 , the PS mask plate can be used to simultaneously form the pad layer 13 during the process of forming the spacer layer 15 .

[0060] Exemplarily, the PS mask is a halftone mask. As shown in FIG6 , the halftone mask process forms a film pattern with different coverage and thickness in the reflective region 2 when manufacturing the spacer layer 15. The portion of the film pattern whose coverage coincides with the reflective region's coverage can be referred to as the raised layer 13. In other words, the raised layer 13 is integral with the spacer layer 15.

[0061] Exemplarily, the first base substrate 11 is a transparent substrate, such as glass, plastic, etc.

[0062] Exemplarily, the cover layer 14 may be a transparent optical adhesive layer.

[0063] For example, the spacer layer 15 may be an organic resin material layer.

[0064] As shown in Figure 3, the array substrate 20 includes a second base substrate 21, a driving circuit layer 22, a passivation layer 23, a transmissive electrode layer 24 and a reflective electrode layer 25. The second base substrate 21, the driving circuit layer 22 and the passivation layer 23, the transmissive electrode layer 24 and the reflective electrode layer 25 are stacked in sequence along a direction close to the color filter substrate 10.

[0065] The reflective electrode layer 25 includes a plurality of reflective electrodes 251, and the transmissive electrode layer 24 includes a plurality of transmissive electrodes 241. There is one reflective electrode 251 and one transmissive electrode 241 in each pixel region. In each pixel region, the orthographic projection of the reflective electrode 251 on the second base substrate 21 overlaps with the orthographic projection of the transmissive electrode 241 on the second base substrate 21, and the reflective electrode 251 is electrically connected to the transmissive electrode 241.

[0066] Exemplarily, in two adjacent pixel regions, the reflective electrode 251 in one pixel region and the transmissive electrode 241 in the other pixel region are insulated from each other.

[0067] In the disclosed embodiment, in each pixel region, the transmissive electrode 241 at least covers the corresponding transmissive region 1, i.e., the transmissive electrode 241 at least fills the transmissive region 1, and may also extend beyond the transmissive region 1 (e.g., located in the reflective region 2). The reflective electrode 251 covers the corresponding reflective region 2, i.e., the reflective electrode 251 fills the reflective region 2, or in other words, the reflective region 2 and the reflective electrode 251 have the same coverage area. The orthographic projection of the portion of the transmissive electrode 241 that extends beyond the transmissive region 1 and is located in the reflective region 2 on the second base substrate 21 is within the orthographic projection of the reflective electrode 251 on the second base substrate 21, i.e., the two overlap.

[0068] In FIG3 , the array substrate 20 further includes an insulating layer 26, which is located between the passivation layer 23 and the reflective electrode layer 25. The insulating layer 26 is located in the reflective region 2. Since each pixel region has a reflective region 2, the insulating layer 26 includes a plurality of insulating blocks 261 arranged in an array, with each insulating block 261 located in a corresponding reflective region 2. The reflective electrode 251 is located on a surface of the insulating block 261 away from the passivation layer 23 and on at least one of the multiple sidewalls of the insulating block 261. The reflective electrode 251 located on the sidewall of the insulating block 261 is connected to the transmissive electrode 241.

[0069] As shown in Figures 3 and 4, the driving circuit layer 22 includes a plurality of data lines 222 and a plurality of gate lines 223. The plurality of gate lines 223 extend along a first direction x, and the plurality of data lines 222 extend along a second direction y. The plurality of data lines 222 and the plurality of gate lines 223 intersect, thereby defining a plurality of pixel areas. For example, the first direction x and the second direction y are perpendicular to each other. The orthographic projection of the data lines 222 on the second base substrate 21 is at least partially located within the orthographic projection of the reflective electrode 251 on the second base substrate 21, which is beneficial for improving the pixel aperture ratio of the liquid crystal display panel.

[0070] As shown in FIG4 , the driving circuit layer 22 further includes a plurality of pixel driving circuits 224 , each corresponding to a plurality of pixel regions. Each pixel driving circuit 224 is located in a corresponding pixel region. Each pixel driving circuit 224 is located in the reflective region 2, that is, below the corresponding reflective electrode 251 and shielded by the reflective electrode 251. Therefore, there is no need to arrange other structures to shield the pixel driving circuit 224, which is beneficial to improving the pixel aperture ratio of the liquid crystal display panel.

[0071] Each pixel driving circuit 224 includes at least one thin film transistor (TFT). Each TFT includes a gate, a source, and a drain. The gate is connected to the gate line 223, the source is connected to the data line 222, and the drain is connected to the transmissive electrode 241 in the corresponding pixel area. A scanning signal can be applied to the TFT via the gate line 223, controlling the TFT to turn on, thereby inputting a voltage to the connected transmissive electrode 241.

[0072] Exemplarily, the driving circuit layer 22 includes a gate layer, a gate insulating layer 221, an active layer, and a source-drain layer sequentially arranged on the second base substrate 21. The gate line 223 and the gate are located in the gate layer, and the data line 222, the source, and the drain are located in the source-drain layer.

[0073] Exemplarily, the second base substrate 21 is a transparent substrate, such as glass, plastic, etc.

[0074] Exemplarily, the gate layer is made of a metal material, such as one or more of molybdenum, copper, and aluminum.

[0075] For example, the gate insulating layer 221 may be made of silicon oxide, silicon nitride, silicon oxynitride, or the like.

[0076] For example, the active layer may be made of a low-temperature polysilicon material or a metal oxide semiconductor material such as Indium Gallium Zinc Oxide (IGZO).

[0077] Exemplarily, the source and drain layers can be single-layer metal films such as aluminum, molybdenum, copper, and titanium, or can be multi-layer metal films such as molybdenum layers, aluminum layers, and molybdenum layers stacked in sequence, or titanium layers, aluminum layers, and titanium layers stacked in sequence.

[0078] For example, the passivation layer 23 may be a silicon oxide layer or a silicon nitride layer.

[0079] For example, the transmissive electrode layer 24 may be an indium tin oxide (ITO) layer or an indium zinc oxide (IZO) layer.

[0080] For example, the reflective electrode layer 25 may be a metal layer having reflectivity and good electrical conductivity, such as aluminum, aluminum alloy, molybdenum, molybdenum alloy, titanium or silver.

[0081] For example, the insulating layer 26 may be an acrylic layer or a resin layer.

[0082] Optionally, the liquid crystal layer 30 includes a plurality of liquid crystal molecules 31 .

[0083] As shown in FIG. 3 , the array substrate 20 further includes a first alignment layer 40 . The first alignment layer 40 is adjacent to the liquid crystal layer 30 .

[0084] For example, the first alignment layer 40 may be a polyimide (PI) layer.

[0085] FIG7 is a partial structural diagram of a liquid crystal display panel provided by an embodiment of the present disclosure. As shown in FIG7 , a surface of the first alignment layer 40 close to the liquid crystal layer 30 has a plurality of first strip-shaped grooves 401 .

[0086] Figure 8 is a schematic diagram of a partial structure of another liquid crystal display panel provided by an embodiment of the present disclosure. As shown in Figure 8, the angle α between the extension direction of the first strip-shaped groove 401 and the extension direction of the boundary line between the transmissive area and the reflective area is 5° to 30°, and the extension direction of the boundary line between the transmissive area and the reflective area is the second direction y.

[0087] In some examples, the extending direction of the boundary line between the transmission area and the reflection area may be the first direction x.

[0088] Thus, when rubbing the first alignment layer 40 for alignment, the angle α between the rubbing direction and the extending direction of the boundary line between the transmissive area and the reflective area is 5° to 30°. If the angle α between the rubbing direction and the extending direction of the boundary line between the transmissive area and the reflective area is too small or too large, the rubbing cloth may not rub the edge of the transmissive area sufficiently, resulting in poor quality of the first strip-shaped grooves 401 formed at the edge of the transmissive area. When the angle α is within this range, the rubbing cloth can more fully rub the first alignment layer 40 at the edge of the transmissive area, resulting in better alignment of the first alignment layer 40, thereby orderly arranging the liquid crystal molecules at the edge of the transmissive area and reducing the probability of light leakage and pitting defects.

[0089] For example, the included angle α between the extension direction of the first strip-shaped groove 401 and the extension direction of the boundary line between the transmission area and the reflection area may be 7°, 11°, or 15°.

[0090] As shown in FIG3 and FIG7 , the color filter substrate 10 further includes a second alignment layer 41 . The second alignment layer 41 is adjacent to the liquid crystal layer 30 . A surface of the second alignment layer 41 close to the liquid crystal layer 30 has a plurality of second strip-shaped grooves 411 .

[0091] For example, the second alignment layer 41 may be a PI layer.

[0092] In some examples, the extending direction of the second strip-shaped groove 411 may be the same as the extending direction of the first strip-shaped groove 401 .

[0093] In other examples, the extension direction of the second strip-shaped groove 411 may be different from the extension direction of the first strip-shaped groove 401, and the extension directions of the two need to be matched according to product requirements. For example, the extension direction of the second strip-shaped groove 411 and the extension direction of the first strip-shaped groove 401 may be perpendicular to each other, at 45° or other angles, etc.

[0094] Optionally, a difference between a distance D1 between the color filter substrate 10 and the array substrate 20 in the transmissive area 1 and a distance D2 between the color filter substrate 10 and the array substrate 20 in the reflective area 2 is 1.3 μm to 3 μm.

[0095] For example, the difference between the distance D1 between the color filter substrate 10 and the array substrate 20 in the transmissive area 1 and the distance D2 between the color filter substrate 10 and the array substrate 20 in the reflective area 2 may be 1.3 μm, 1.9 μm, or 2.5 μm.

[0096] Optionally, the thickness H1 of the array substrate 20 in the reflective area 2 is greater than the thickness H2 of the array substrate 20 in the transmissive area 1. This helps to make the optical path difference of light passing through the liquid crystal layer 30 in the reflective area 2 and the liquid crystal layer 30 in the transmissive area 1 the same.

[0097] Optionally, the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 is the same as the difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1. This helps to reduce the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1.

[0098] Optionally, the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 is 0.6 μm to 1.5 μm, and the difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1 is 0.6 μm to 1.5 μm.

[0099] In one possible embodiment, the difference between the thickness H1 of the array substrate 20 in the reflective region 2 and the thickness H2 of the array substrate 20 in the transmissive region 1 is 0.8 μm to 1.5 μm, and the difference between the thickness H3 of the color filter substrate 10 in the reflective region 2 and the thickness H4 of the color filter substrate 10 in the transmissive region 1 is 0.8 μm to 1.5 μm. This minimizes the difference in thickness between the array substrate 20 in the reflective region 2 and the array substrate 20 in the transmissive region 1. During rubbing alignment of the first alignment layer 40, the first alignment layer 40 at the edge of the transmissive region 1 can be well aligned, resulting in orderly arrangement of the liquid crystal molecules 31 at the edge of the transmissive region 1.

[0100] Depending on different process conditions, the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 and the difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1 may be different.

[0101] Exemplarily, the spacer layer 13 and the cover layer 14 are integrally formed. The difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 can be 0.8 μm to 1.2 μm, for example, the difference can be 0.8 μm, 1 μm, or 1.2 μm. The difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1 can be 0.8 μm to 1.2 μm, for example, the difference can be 0.8 μm, 1 μm, or 1.2 μm.

[0102] Exemplarily, the spacer layer 13 is integral with the spacer layer 15, and the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 can be 1 μm to 1.5 μm, for example, 1 μm, 1.3 μm, or 1.5 μm. The difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1 can be 1 μm to 1.5 μm, for example, 1 μm, 1.3 μm, or 1.5 μm.

[0103] Optionally, the material of the liquid crystal molecules 31 can be electrically controlled birefringence (ECB) liquid crystal. Using ECB liquid crystal with a high birefringence index is beneficial for reducing the thickness difference of the liquid crystal layer 30 in the transmissive area 1 and the reflective area 2 while maintaining a constant phase difference between the transmissive area 1 and the reflective area 2. In other words, the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 can be reduced, thereby reducing the probability of frictional defects.

[0104] Optionally, the birefringence of the ECB liquid crystal is 0.1 to 0.12. Since the phase difference between the transmissive region 1 and the reflective region 2 is fixed, the phase difference is the product of the birefringence of the ECB liquid crystal and the thickness difference between the liquid crystal layer 30 in the transmissive region 1 and the reflective region 2. Therefore, the greater the birefringence of the ECB liquid crystal, the smaller the thickness difference between the liquid crystal layer 30 in the transmissive region 1 and the reflective region 2. Within this relatively large range of the birefringence of the ECB liquid crystal, the difference between the thickness H1 of the array substrate 20 in the reflective region 2 and the thickness H2 of the array substrate 20 in the transmissive region 1 can be more effectively reduced.

[0105] For example, the birefringence of the ECB liquid crystal may be 0.1, 0.11 or 0.12, etc. For example, if the birefringence of the ECB liquid crystal is 0.1, the thickness difference between the liquid crystal layer 30 in the transmissive region 1 and the reflective region 2 may be 1.3 μm.

[0106] In some examples, the liquid crystal layer 30 further includes a surfactant, and the material of the liquid crystal molecules 31 is a polymerizable liquid crystal. The surfactant is used to align the polymerizable liquid crystal. The polymerizable liquid crystal can first be aligned in a planar manner with the aid of a surfactant, and then exposed to linearly polarized ultraviolet light and a high temperature environment, so that the polymerizable liquid crystal can be aligned into a uniform orientation and polymerized to fix the orientation. In this way, even without a friction alignment process, the polymerizable liquid crystal can be aligned under the action of the surfactant, thereby improving the stability of the alignment of the liquid crystal molecules 31. The liquid crystal molecules 31 can be arranged in an orderly manner, thereby reducing the probability of light leakage and pitting defects, and improving the display quality of the liquid crystal display panel.

[0107] For example, the polymerizable liquid crystal may be a polymerizable cholesteric liquid crystal or a blue phase liquid crystal.

[0108] For example, the surfactant may be a nonionic surfactant or a polymerizable fluorocarbon surfactant, for example, a nonionic fluorocarbon surfactant.

[0109] In a possible implementation, a surfactant and a polymerizable liquid crystal may be used in conjunction with a rubbing alignment process to make the liquid crystal molecules 31 more orderly.

[0110] Figure 9 is a schematic diagram of the cross-sectional structure of another liquid crystal display panel provided by an embodiment of the present disclosure. Figure 9 may be a cross-sectional view taken along section line AA of Figure 4 . The main differences between the liquid crystal display panel shown in Figure 9 and the liquid crystal display panel shown in Figure 3 are that the difference between the thickness H1 of the array substrate 20 in the reflective area 2 and the thickness H2 of the array substrate 20 in the transmissive area 1 is different, and the difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1 is different.

[0111] As shown in FIG9 , the array substrate 20 includes a second base substrate 21 , a drive circuit layer 22 , a passivation layer 23 , a transmissive electrode layer 24 , and a reflective electrode layer 25 . The second base substrate 21 , the drive circuit layer 22 , and the passivation layer 23 are stacked sequentially in a direction approaching the color filter substrate 10 . The reflective electrode layer 25 and the transmissive electrode layer 24 are both located on the side of the passivation layer 23 that is close to the color filter substrate 10 . The surface of the reflective electrode layer 25 that is close to the color filter substrate 10 is flush with the surface of the transmissive electrode layer 24 that is close to the color filter substrate 10 .

[0112] The reflective electrode layer 25 includes multiple reflective electrodes 251, and the transmissive electrode layer 24 includes multiple transmissive electrodes 241. Each pixel region contains one reflective electrode 251 and one transmissive electrode 241. In each pixel region, the orthographic projection of the reflective electrode 251 on the second substrate 21 overlaps with the orthographic projection of the transmissive electrode 241 on the second substrate 21. In the first direction x, the cross-section of the reflective electrode 251 is a trapezoid with a shorter lower base, while the cross-section of the transmissive electrode 241 is a trapezoid with a shorter upper base. Therefore, the orthographic projection of the reflective electrode 251 on the second substrate 21 is the orthographic projection of the upper surface of the reflective electrode 251 on the second substrate 21, and the orthographic projection of the transmissive electrode 241 on the second substrate 21 is the orthographic projection of the lower surface of the transmissive electrode 241 on the second substrate 21, and the two overlap. In this case, the sidewalls of the reflective electrode 251 are directly connected to the sidewalls of the transmissive electrode 241.

[0113] That is, the liquid crystal display panel does not include the insulating layer 26 between the passivation layer 23 and the reflective electrode layer 25 as shown in FIG3 , and the thickness of the array substrate 20 is uniform. This flattens the surface of the array substrate 20, facilitating effective alignment of the first alignment layer 40 on the array substrate 20, thereby ensuring orderly arrangement of the liquid crystal molecules 31 at the edge of the transmissive region 1 .

[0114] As shown in FIG. 9 , in two adjacent pixel regions, there is a certain distance between the reflective electrode 251 in one pixel region and the transmissive electrode 241 in the other pixel region to achieve mutual insulation.

[0115] Optionally, the thickness H1 of the array substrate 20 in the reflective area 2 is the same as the thickness H2 of the array substrate 20 in the transmissive area 1. This will not affect the rubbing alignment process, can ensure the orderly arrangement of the liquid crystal molecules 31, and provide a better display effect of the liquid crystal display panel.

[0116] In one possible embodiment, when the thickness H1 of the array substrate 20 in the reflective region 2 is the same as the thickness H2 of the array substrate 20 in the transmissive region 1, an error within a certain range is permitted. For example, errors may occur in actual manufacturing processes, and the thickness H1 of the array substrate 20 in the reflective region 2 may be greater than or equal to 0.95H1 and less than H1, or greater than H1 and less than or equal to 1.05H1. In this case, the thickness H1 of the array substrate 20 in the reflective region 2 is considered to be the same as the thickness H2 of the array substrate 20 in the transmissive region 1, i.e., an error of ±5% is permitted.

[0117] Optionally, the difference between the thickness H3 of the color filter substrate 10 in the reflective region 2 and the thickness H4 of the color filter substrate 10 in the transmissive region 1 is 1.5 μm to 2.5 μm. Because the color filter substrate 10 has a simple film structure and high surface flatness, the rubbing alignment process is minimally impacted when the second alignment layer 41 on the color filter substrate 10 is rubbing aligned. The liquid crystal molecules 31 at the edge of the transmissive region 1 remain orderly aligned, making light leakage and pitting less likely to occur.

[0118] For example, the difference between the thickness H3 of the color filter substrate 10 in the reflective area 2 and the thickness H4 of the color filter substrate 10 in the transmissive area 1 may be 1.5 μm, 2 μm, or 2.5 μm.

[0119] Optionally, other structures and materials of the liquid crystal display panel refer to the relevant embodiments of FIG. 3 to FIG. 8 , and detailed description is omitted here.

[0120] FIG10 is a flow chart of a method for manufacturing a liquid crystal display panel provided by an embodiment of the present disclosure. As shown in FIG10 , the manufacturing method includes:

[0121] In step S501 , the array substrate and the color filter substrate are connected.

[0122] Among them, the array substrate has multiple pixel areas, each pixel area includes a connected transmission area and a reflection area, the thickness of the color film substrate in the reflection area is greater than the thickness of the color film substrate in the transmission area, and the surface of the color film substrate away from the array substrate is flat, and the ratio of the distance between the color film substrate in the transmission area and the array substrate to the distance between the color film substrate in the reflection area and the array substrate is 1.3 to 2.5.

[0123] In step S502 , a liquid crystal layer is formed between the array substrate and the color filter substrate.

[0124] In the disclosed embodiment, when the ratio of the distance between the color filter substrate in the transmissive region and the array substrate to the distance between the color filter substrate in the reflective region and the array substrate is between 1.3 and 2.5, the thickness of the color filter substrate in the reflective region is greater than that in the transmissive region, and the surface of the color filter substrate away from the array substrate is flat. This reduces the difference in thickness between the array substrate in the reflective region and the array substrate in the transmissive region compared to a case where the color filter substrates have uniform thickness. When the alignment layer on the array substrate is subsequently rubbed and aligned, the alignment layer on the array substrate at the edge of the transmissive region is well aligned, resulting in orderly alignment of the liquid crystal molecules at the edge of the transmissive region. This reduces the likelihood of light leakage and pitting defects, thereby improving the display quality of the liquid crystal display panel.

[0125] FIG11 is a flow chart of another method for manufacturing a liquid crystal display panel provided by an embodiment of the present disclosure. As shown in FIG11 , the manufacturing method includes:

[0126] In step S601 , the array substrate and the color filter substrate are connected.

[0127] Exemplarily, the array substrate may be manufactured using the following steps:

[0128] In the first step, an initial gate layer is formed on the second substrate by, for example, deposition, and then a photoresist structure is obtained on the initial gate layer by processes such as photoresist coating, exposure, and development. The initial gate layer is then etched using the photoresist structure as a mask to form a gate layer.

[0129] The second step is to form a gate insulating layer on the gate layer by, for example, deposition, and then form an active layer on the gate insulating layer. For example, an initial active layer can be first deposited on the gate insulating layer, and then a photoresist structure can be obtained by photoresist coating, exposure, and development. The initial active layer can then be etched using the photoresist structure as a mask to form the active layer.

[0130] In the third step, a source and drain layer is formed on the active layer by adopting a series of processes such as deposition, photoresist coating, exposure, etching, and stripping.

[0131] Step 4: Form an initial passivation layer on the source and drain electrode layers, for example, by deposition. Through a series of processes such as photoresist coating, exposure, etching, and stripping, multiple vias are formed to expose the source and drain electrode layers, thereby forming a passivation layer. Form an initial transmissive electrode layer on the passivation layer, for example, by deposition. A photoresist structure is formed on the initial transmissive electrode layer through processes such as photoresist coating, exposure, and development. The initial transmissive electrode layer is then etched using this photoresist structure as a mask to form a transmissive electrode layer. The transmissive electrode layer is electrically connected to the source and drain electrode layers through the vias in the passivation layer.

[0132] Step 5: Form an initial insulating layer on the transmissive electrode layer by, for example, deposition. The insulating layer is formed through a series of processes including photoresist coating, exposure, etching, and stripping.

[0133] In the sixth step, an initial reflective electrode layer is formed on the insulating layer by, for example, deposition. A photoresist structure is obtained on the initial reflective electrode layer by processes such as photoresist coating, exposure, and development. The initial reflective electrode layer is etched using the photoresist structure as a mask to form the reflective electrode layer.

[0134] In the seventh step, an initial first alignment layer is formed on the transmissive electrode layer and the reflective electrode layer, and the initial first alignment layer is rubbed and aligned by a rubbing process to form a first alignment layer.

[0135] For example, the color filter substrate can be manufactured by the following steps:

[0136] The first step is to form a color filter layer on the first base substrate.

[0137] In the second step, a covering layer, a padding layer and a spacer layer are formed on the color film layer, wherein the padding layer is integrated with the covering layer or integrated with the spacer.

[0138] The third step is to form an initial second alignment layer on the cover layer and the padding layer, and to perform friction alignment on the initial second alignment layer through a friction process to form a second alignment layer.

[0139] Optionally, the structures, materials, and rubbing directions of each layer of the array substrate and the color filter substrate refer to the relevant embodiments of FIG. 3 to FIG. 8 , and detailed description is omitted here.

[0140] In step S602 , a liquid crystal layer is formed between the array substrate and the color filter substrate.

[0141] Exemplarily, step S602 may be to use a sealing adhesive to form a liquid crystal layer between the array substrate and the color filter substrate.

[0142] Optionally, the liquid crystal layer includes a surfactant and a plurality of liquid crystal molecules, the material of the liquid crystal molecules is polymerizable liquid crystal, and the surfactant is used to align the polymerizable liquid crystal.

[0143] In step S603 , the liquid crystal layer is heated at 100° C. to 120° C. for 10 to 30 minutes.

[0144] In step S604 , the liquid crystal layer is irradiated with a first ultraviolet light for 3 minutes to 5 minutes at a temperature of 100° C. to 120° C.

[0145] The first ultraviolet light is linearly polarized light, and the intensity of the first ultraviolet light is 35mW / cm 2 Up to 50mW / cm 2 .

[0146] In step S605 , the liquid crystal layer is cooled to 25° C. to 27° C., and the liquid crystal layer is irradiated with a second ultraviolet light for 10 minutes to 15 minutes.

[0147] The second ultraviolet light is non-linearly polarized light, and the intensity of the second ultraviolet light is 35mW / cm 2 Up to 50mW / cm 2 .

[0148] Through the above steps S603 to S605, after high temperature and ultraviolet light irradiation, the liquid crystal molecules can be oriented and the stability of the liquid crystal molecular orientation is improved. The liquid crystal molecules can be arranged in an orderly manner, thereby reducing the probability of light leakage and pitting defects and improving the display effect of the liquid crystal display panel.

[0149] Optionally, the structure, material and thickness of each layer of the liquid crystal display panel refer to the relevant embodiments of FIG. 3 to FIG. 8 , and detailed description is omitted here.

[0150] FIG12 is a schematic structural diagram of a display device provided by an embodiment of the present disclosure. As shown in FIG12 , the display device includes a backlight module 1001 and the aforementioned liquid crystal display panel 1000 . The backlight module 1001 provides light source for the liquid crystal display panel 1000 .

[0151] Optionally, the display device further includes a power supply circuit, which supplies power to the liquid crystal display panel 1000 .

[0152] Optionally, the display device can be any product or component with a display function, such as an outdoor electronic billboard, an outdoor charging station, a laptop computer, a mobile phone, a tablet computer, a television, a monitor, a wearable device, a digital photo frame, a navigator, or the like.

[0153] The above description does not limit the present disclosure in any form. Although the present disclosure has been disclosed as above through the embodiments, it is not intended to limit the present disclosure. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments with equivalent changes using the technical content disclosed above without departing from the scope of the technical solution of the present disclosure. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.

Claims

1. A liquid crystal display panel, characterized in that, It includes an array substrate (20), a color filter substrate (10) connected to the array substrate (20), and a liquid crystal layer (30) located between the array substrate (20) and the color filter substrate (10); The array substrate (20) has a plurality of pixel regions, and each pixel region includes a connected transmission region (1) and a reflection region (2); The thickness of the color filter substrate (10) in the reflection region (2) is greater than the thickness of the color filter substrate (10) in the transmission region (1), and the surface of the color filter substrate (10) away from the array substrate (20) is a plane; The ratio of the distance between the color filter substrate (10) in the transmission region (1) and the array substrate (20) to the distance between the color filter substrate (10) in the reflection region (2) and the array substrate (20) is 1.3 to 2.

5.

2. The liquid crystal display panel according to claim 1, characterized in that, The color filter substrate (10) includes a first substrate (11), a color filter layer (12), and a spacer layer (13). The color filter layer (12) and the spacer layer (13) are sequentially stacked on one side of the first substrate (11) close to the array substrate (20) in the direction close to the array substrate (20), and the spacer layer (13) is located in the reflection region (2).

3. The liquid crystal display panel according to claim 2, wherein The color filter substrate (10) further includes a cover layer (14) and a spacer layer (15). The cover layer (14) and the spacer layer (15) are sequentially located on one side of the color filter layer (12) close to the array substrate (20) in the direction close to the array substrate (20). The spacer layer (13) is located between the cover layer (14) and the spacer layer (15), and the spacer layer (13) is integral with the cover layer (14) or integral with the spacer layer (15).

4. The liquid crystal display panel according to any one of claims 1 to 3, characterized in that, The thickness of the array substrate (20) in the reflection region (2) is greater than the thickness of the array substrate (20) in the transmission region (1).

5. The liquid crystal display panel according to claim 4, wherein The difference between the thickness of the array substrate (20) in the reflection region (2) and the thickness of the array substrate (20) in the transmission region (1) is the same as the difference between the thickness of the color filter substrate (10) in the reflection region (2) and the thickness of the color filter substrate (10) in the transmission region (1).

6. The liquid crystal display panel according to claim 5, wherein The difference between the thickness of the array substrate (20) in the reflection region (2) and the thickness of the array substrate (20) in the transmission region (1) is 0.6 μm to 1.5 μm, and the difference between the thickness of the color filter substrate (10) in the reflection region (2) and the thickness of the color filter substrate (10) in the transmission region (1) is 0.6 μm to 1.5 μm.

7. The liquid crystal display panel according to any one of claims 1 to 3, characterized in that The thickness of the array substrate (20) in the reflection region (2) is the same as the thickness of the array substrate (20) in the transmission region (1).

8. The liquid crystal display panel according to claim 7, characterized in that, The difference between the thickness of the color filter substrate (10) in the reflection region (2) and the thickness of the color filter substrate (10) in the transmission region (1) is 1.5 μm to 2.5 μm.

9. The liquid crystal display panel according to claim 7, wherein The array substrate (20) includes a second substrate (21), a driving circuit layer (22), a passivation layer (23), a transmissive electrode layer (24), and a reflective electrode layer (25). The second substrate (21), the driving circuit layer (22), and the passivation layer (23) are stacked in sequence in a direction close to the color filter substrate (10). Both the reflective electrode layer (25) and the transmissive electrode layer (24) are located on a side of the passivation layer (23) close to the color filter substrate (10). The surface of the reflective electrode layer (25) close to the color filter substrate (10) is flush with the surface of the transmissive electrode layer (24) close to the color filter substrate (10).

10. The liquid crystal display panel according to any one of claims 1 to 3, claims 5 to 6, and claims 8 to 9, characterized in that, The array substrate (20) further includes a first alignment layer (40). The first alignment layer (40) is adjacent to the liquid crystal layer (30). The surface of the first alignment layer (40) close to the liquid crystal layer (30) has a plurality of first strip-shaped grooves (41). The extension direction of the first strip-shaped grooves (41) forms an angle of 5° to 30° with the extension direction of the boundary line between the transmissive region (1) and the reflective region (2).

11. The liquid crystal display panel according to claim 10, characterized in that, The liquid crystal layer (30) includes a plurality of liquid crystal molecules (31). The material of the liquid crystal molecules (31) is an electrically controlled birefringent liquid crystal, and the birefringence of the electrically controlled birefringent liquid crystal is 0.1 to 0.

12.

12. The liquid crystal display panel according to any one of claims 1 to 3, claims 5 to 6, and claims 8 to 9, characterized in that, The liquid crystal layer (30) includes a surfactant and a plurality of liquid crystal molecules (31). The material of the liquid crystal molecules (31) is a polymerizable liquid crystal, and the surfactant is used to align the polymerizable liquid crystal in a direction.

13. A method for manufacturing a liquid crystal display panel, characterized in that, Comprising: Connect the array substrate (20) and the color filter substrate (10). The array substrate (20) has a plurality of pixel regions. Each pixel region includes a connected transmissive region (1) and a reflective region (2). The thickness of the color filter substrate (10) in the reflective region (2) is greater than the thickness of the color filter substrate (10) in the transmissive region (1). And the surface of the color filter substrate (10) away from the array substrate (20) is a plane. The ratio of the distance between the color filter substrate (10) in the transmissive region (1) and the array substrate (20) to the distance between the color filter substrate in the reflective region (2) and the array substrate is 1.3 to 2.5; Form a liquid crystal layer (30) between the array substrate (20) and the color filter substrate (10).

14. The manufacturing method according to claim 13, characterized in that, The liquid crystal layer (30) includes a surfactant and a plurality of liquid crystal molecules (31). The material of the liquid crystal molecules (31) is a polymerizable liquid crystal, and the surfactant is used to align the polymerizable liquid crystal in a direction. The method further includes: Heat the liquid crystal layer (30) at 100°C to 120°C for 10 min to 30 min; Under the environment of 100 °C to 120 °C, irradiate the liquid crystal layer (30) with the first ultraviolet light for 3 min to 5 min. The first ultraviolet light is linearly polarized light, and the intensity of the first ultraviolet light is 35 mW / cm 2 to 50 mW / cm 2 ; Cool the liquid crystal layer (30) to 25°C to 27°C, and irradiate the liquid crystal layer (30) with a second ultraviolet light for 10 min to 15 min. The second ultraviolet light is non-linearly polarized light, and the intensity of the second ultraviolet light is 35 mW / cm 2 to 50 mW / cm 2 .

15. A display device, characterized in that, Comprising a backlight module (1001) and a liquid crystal display panel (1000) according to any one of claims 1 to 12. The backlight module (1001) provides a light source for the liquid crystal display panel (1000).

Images