CN111352282B

CN111352282B - Display panel and manufacturing method thereof

Info

Publication number: CN111352282B
Application number: CN202010284981.2A
Authority: CN
Inventors: 陈梅; 陈兴武; 宋琪
Original assignee: TCL Huaxing Photoelectric Technology Co Ltd
Current assignee: TCL Huaxing Photoelectric Technology Co Ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2022-12-23
Anticipated expiration: 2040-04-13
Also published as: CN111352282A

Abstract

A display panel and a method of manufacturing the same are disclosed, which has a transmissive region and a reflective region; wherein, the display panel includes: the display device comprises a first substrate and a second substrate, wherein the first substrate comprises a first electrode, and the first electrode is positioned on one surface of the first substrate facing the second substrate; the reflecting layer is arranged between the first substrate and the first electrode and is positioned in the reflecting area; a liquid crystal layer disposed between the first substrate and the second substrate; in the transmission area, the liquid crystal layer is chiral liquid crystal, and in the reflection area, the liquid crystal layer is achiral liquid crystal; or in the transmission area, the liquid crystal layer is non-chiral liquid crystal, and in the reflection area, the liquid crystal layer is chiral liquid crystal. The application has the advantages that: by selecting chiral liquid crystal and non-chiral liquid crystal and matching with the same electrode design, the brightness of the transmission region and the reflection region under the same box thickness is maximized, and the high-penetration semi-transparent semi-reflective liquid crystal display is realized.

Description

Display panel and manufacturing method thereof

Technical Field

The present disclosure relates to display technologies, and particularly to a display panel and a manufacturing method thereof.

Background

Liquid crystal displays have been widely used in the fields of televisions, mobile phones, flat panels, and the like. Liquid crystal displays are largely classified into a transmissive display mode and a reflective display mode according to the manner of using a light source. The light of the transmissive lcd is provided by the backlight source, and the absolute brightness of the transmissive lcd is not affected by the ambient light, so that the transmissive lcd has an excellent display effect in the indoor environment without ambient light or with weak ambient light intensity, but has the disadvantages of insufficient backlight brightness and poor display quality under strong ambient light conditions. Although the brightness of the transmissive lcd can be improved by increasing the backlight brightness, this method not only has a limited effect of improving the brightness, but also greatly increases the power consumption and reduces the life of the power supply system of the backlight. In contrast, the reflective liquid crystal display achieves an image display effect by reflecting a front light or ambient light, and has a good display effect in a strong light environment (for example, outdoors), but since the luminance thereof is completely dependent on the ambient light, the display quality of the reflective liquid crystal display is greatly reduced under a condition where there is no ambient light or the ambient light is weak.

In order to combine the advantages of the transmissive display mode and the reflective display mode, a transflective liquid crystal display ("lcd") is developed, which has good display quality in both low light and high light environments. However, in order to achieve the maximum utilization of light, most transflective liquid crystal displays use a double cell thickness design to make the optical path difference of light in the transmissive region and the reflective region consistent. However, the dual cell thickness design not only needs to add a yellow light process to reduce the cell thickness of the reflective region, but also the accuracy of the transition region is difficult to control.

Disclosure of Invention

In order to solve the above problems, the present application provides a display panel and a manufacturing method thereof, which effectively solve the problems that in the prior art, a yellow light process needs to be added to reduce the cell thickness of the reflective region in the double cell thickness design, and the accuracy of the transition region is difficult to control.

The present application is directed to a display panel and a method for manufacturing the same, which maximize the brightness of a transmissive region and a reflective region at the same cell thickness and achieve high transmittance.

To achieve the above object, the present application provides a display panel having a transmissive region and a reflective region;

wherein the display panel includes:

the display device comprises a first substrate and a second substrate which are oppositely arranged, wherein the first substrate is provided with a first electrode which is positioned on one surface of the first substrate facing the second substrate;

the reflecting layer is arranged between the first substrate and the first electrode and is positioned in the reflecting area;

the liquid crystal layer is arranged between the first substrate and the second substrate;

in the transmission area, the liquid crystal layer is chiral liquid crystal, and in the reflection area, the liquid crystal layer is achiral liquid crystal; or in the transmission area, the liquid crystal layer is achiral liquid crystal, and in the reflection area, the liquid crystal layer is chiral liquid crystal.

Further, the display panel further includes:

the first substrate faces the second substrate and is arranged in the transmission area and the reflection area; the first electrode of the reflective region and the first electrode of the transmissive region have the same electrode pattern.

Furthermore, the first electrode comprises an electrode trunk and electrode branches, the electrode trunk surrounds the electrode branches, the electrode branches are connected to the electrode trunk, and the electrode branches are arranged in parallel to each other to form a grid structure.

Further, when the display panel has chiral liquid crystal in the transmissive region, an included angle is formed between the electrode trunk and the electrode branches, and the included angle is 0-30 degrees or 60-90 degrees;

when the display panel has chiral liquid crystal in the reflection region, an included angle is formed between the electrode trunk and the electrode branches, and the included angle is 35-55 degrees.

Furthermore, the display panel further comprises a retaining wall which is arranged between the transmission area and the reflection area and used for isolating the chiral liquid crystal from the achiral liquid crystal.

Further, the display panel further includes:

the first polaroid is arranged on one side of the first substrate, which is far away from the second substrate;

the second polaroid is arranged on one side of the second substrate, which is far away from the first substrate;

the first alignment film is arranged on one side, facing the second substrate, of the first substrate; and

and the second alignment film is arranged on one side of the second substrate facing the first substrate.

Furthermore, the screw pitch of the chiral liquid crystal is 10-20 μm, the optical path difference is 400-500 nm, the optical path difference of the achiral liquid crystal is 300-400 nm, and the cell thickness of the liquid crystal layer is 2.8-4.0 μm.

The application also provides a manufacturing method for manufacturing the display panel, which comprises the following steps:

manufacturing the first substrate and the second substrate, wherein the first electrode is formed in the first substrate, the second electrode is formed in the second substrate, the first electrode is arranged on one surface of the first substrate facing the second substrate, and the second electrode is arranged on one surface of the second substrate facing the first substrate;

forming the reflecting layer on one surface of the first substrate in the reflecting region;

oppositely arranging the first substrate and the second substrate, wherein the reflecting layer is arranged between the first substrate and the second substrate;

manufacturing the liquid crystal layer between one surface of the first substrate and the second substrate, wherein the manufacturing comprises injecting the chiral liquid crystal into the transmission area and injecting the achiral liquid crystal into the reflection area; or the achiral liquid crystal is injected into the transmission area, and the chiral liquid crystal is injected into the reflection area;

and attaching the first substrate and the second substrate to form a liquid crystal box, and carrying out polymer stable vertical alignment manufacturing treatment on the liquid crystal box to enable the chiral liquid crystal and the achiral liquid crystal to form a pretilt angle.

Further, before the first substrate and the second substrate are oppositely arranged, the method further comprises the following steps: a retaining wall is manufactured between the transmission area and the reflection area and used for isolating the chiral liquid crystal from the achiral liquid crystal;

in the step of oppositely arranging the first substrate and the second substrate, the retaining wall is positioned between the first substrate and the second substrate.

Further, after the step of manufacturing the first substrate and the second substrate and before the step of arranging the first substrate and the second substrate opposite to each other, the method further comprises the following steps;

manufacturing a first alignment film on one side of the first substrate facing the second substrate;

manufacturing a second alignment film on one side of the second substrate facing the first substrate;

manufacturing a first polarizer on one side of the first substrate, which is far away from the second substrate;

and manufacturing a second polarizer on one side of the second substrate, which is far away from the first substrate.

The application has the advantages that: the application provides a display panel and a manufacturing method thereof, which select chiral liquid crystal and achiral liquid crystal and match with the same electrode design, so that the brightness of a transmission area and a reflection area under the same liquid crystal box thickness is maximized, and a high-penetration semi-transmission semi-reflection liquid crystal display is realized. Furthermore, the liquid crystal display can show good display effect in both low-light and high-light environments.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic cross-sectional structure diagram of a display panel of the present application;

FIG. 2 is a diagram of a first electrode pattern according to a first embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a display panel according to a first embodiment of the present application and an electric field response;

FIG. 4 is a diagram of a first electrode pattern according to a second embodiment of the present application;

fig. 5 is a schematic cross-sectional view of a display panel according to a second embodiment of the present application and an electric field response.

The reference numbers illustrate:

1. display panel, 2, transmission district, 3, reflection zone, 41, first polaroid, 42, second polaroid, 51, first base plate, 52, second base plate, 53, first electrode, 54, second electrode, 61, first alignment layer, 62, second alignment layer, 7, reflection stratum, 8, liquid crystal layer, 81, chiral liquid crystal, 82, achiral liquid crystal, 9, barricade, 531, electrode trunk, 532, electrode branch trunk.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features.

First embodiment

Fig. 1 is a schematic cross-sectional structure diagram of a display panel of the present application; FIG. 2 is a diagram of a first electrode pattern according to a first embodiment of the present application; fig. 3 is a schematic cross-sectional view of a display panel according to a first embodiment of the present application and an electric field response.

As shown in fig. 1 to 3, the present application provides a display panel 1, the display panel 1 has a transmissive region 2 and a reflective region 3, and the display panel 1 includes a first substrate 51, a second substrate 52, a liquid crystal layer 8, a barrier wall 9, a first alignment layer 61, a second alignment layer 62, a first polarizer 41, a second polarizer 42, and a reflective layer 7.

The first substrate 51 is an array substrate (TFT), and the second substrate 52 is a Color Filter (CF) substrate. The first substrate 51 and the second substrate 52 may be flexible substrates or common substrates, and the first substrate 51 and the second substrate 52 are disposed opposite to each other.

The first substrate 51 has a first electrode 53, and the second substrate 52 has a second electrode 54. The first electrode 53 is located on a surface of the first substrate 51 facing the second substrate 52, and the second electrode 54 is located on a surface of the second substrate 52 facing the first substrate 51. The first electrode 53 and the second electrode 54 are liquid crystal driving electrodes.

The first electrode 53 is structured as shown in fig. 2, the first electrode 53 includes a main electrode stem 531 and a branch electrode stem 532, the main electrode stem 531 surrounds the branch electrode stem 532, the branch electrode stems 532 are connected to the main electrode stem 531, and the branch electrode stems 532 are arranged in parallel to each other, thereby forming a grid structure. An included angle phi is formed between the electrode trunk 531 and the electrode branch 532, the included angle is 0-30 degrees or 60-90 degrees, and the structure of the first electrode 53 can enable the liquid crystal penetration rate of the transmission region 2 in the display panel 1 to reach 100% when liquid crystal is driven.

In addition, in this embodiment, the structure of the second electrode 54 may be the same as or different from that of the first electrode 53, and in this embodiment, the second electrode 54 has the same structure as that of the first electrode 53. The specific structure is shown in fig. 2.

In this embodiment, the display panel 1 is divided into a transmissive area 2 and a reflective area 3. In the transmissive region 2 and the reflective region 3, the respective layer structures of the first substrate 51 may be made of transparent or semitransparent materials. In order to reflect light, in this embodiment, a reflective layer 7 is added between the first substrate 51 and the first electrode 53 corresponding to the reflective region 3. I.e. the reflective layer 7 is located in the reflective area 3 of the achiral liquid crystal 82.

And the retaining wall 9 is arranged between the transmission region 2 and the reflection region 3 and is used for isolating the chiral liquid crystal 81 and the achiral liquid crystal 82 and avoiding the crosstalk phenomenon generated in the transition region between the transmission region 2 and the reflection region 3.

The first alignment film 61 is disposed on a side of the first substrate 51 facing the second substrate 52. The second alignment film 62 is disposed on a side of the second substrate 52 facing the first substrate 51.

The first polarizer 41 is disposed on a side of the first substrate 51 away from the second substrate 52. The second polarizer 42 is disposed on a side of the second substrate 52 away from the first substrate 51.

The liquid crystal layer 8 is disposed between the first substrate 51 and the second substrate 52. In the transmissive region 2, the liquid crystal layer 8 is a chiral (chiral) liquid crystal 81, and in the reflective region 3, the liquid crystal layer 8 is an achiral liquid crystal 82.

After the first substrate 51 and the second substrate 52 are attached to form a liquid crystal cell, a Polymer Stabilization Vertical Alignment (PSVA) manufacturing process is performed on the liquid crystal cell, that is, ultraviolet (UV) radiation is performed by applying electricity to form a pretilt angle between the chiral liquid crystal 81 and the achiral liquid crystal 82, wherein the pretilt angle refers to an included angle between the liquid crystal molecules and the substrates and aims to provide an initial tilt direction for the liquid crystal molecules, so that the liquid crystal molecules tilt in the same direction under the action of an electric field, and the phenomenon of dark fringes caused by disturbance of the liquid crystal molecules is avoided. The liquid crystal cell thickness of the transmission region 2 and the reflection region 3 is the same as the electrode pattern, and preferably, the liquid crystal cell thickness is 2.8 to 4.0 μm.

In the transmission region 2, the chiral liquid crystal 81 is a negative cholesteric liquid crystal, the optical path difference (Δ nd) is 400 to 550nm, and the pitch is 10 to 20 μm.

In the reflection region 3, the achiral liquid crystal 82 is a negative nematic liquid crystal, and the optical path difference is 300 to 400nm.

In the non-power-up state, a vertical alignment liquid crystal (VA liquid crystal) display device utilizes an upper polarizing plate and a lower polarizing plate to be orthogonal to obtain an extremely low dark state; under the power-on state, the vertical incident visible light ray and the liquid crystal molecules have an included angle of 45 degrees, and when the effective optical path difference is equal to 1/2 of the visible light wavelength, the optimal bright state display is obtained. The effective optical path difference refers to the optical path difference reflected by the whole liquid crystal molecules after the liquid crystal molecules rotate under the action of an electric field. The effective optical path difference is different from the theoretical optical path difference of the prepared liquid crystal. The theoretical optical path difference (referred to as optical path difference for short) refers to the optical path difference that the liquid crystal molecules are completely rotated from a vertical state to a parallel state under the action of an ideal electric field, and the whole liquid crystal molecules are reflected.

Due to the self-spiral twisting effect of the chiral liquid crystal 81, the chiral liquid crystal 82 in the transmission region 2 is tilted in all directions in the power-on state, and the effective optical path difference of the reflection region 3 is half of the optical path difference of the transmission region 2 under the same liquid crystal box thickness, that is, the transmission region 2 and the reflection region 3 present the same optical path difference, so that the transmittance is maximized.

A manufacturing method of the display panel 1 according to the first embodiment of the present application, which includes the following steps, will be described in detail below.

First, a first substrate 51 and a second substrate 52 are fabricated, wherein the first substrate 51 is formed with a first electrode 53, the second substrate 52 is formed with a second electrode 54, the first electrode 53 is disposed on a surface of the first substrate 51 facing the second substrate 52, the second electrode 54 is disposed on a surface of the second substrate 52 facing the first substrate 51, and the reflective layer 7 is formed on the surface of the first substrate 51 in the reflective region 2.

After that, the first substrate 51 and the second substrate 52 are disposed to face each other with the reflective layer 2 between the first substrate 51 and the first electrode 53.

Then, a liquid crystal layer 8 is formed between one surface of the first substrate 51 and the second substrate 52, including injecting a chiral liquid crystal 81 in the transmissive region 2 and injecting an achiral liquid crystal 82 in the reflective region 3.

Finally, the first substrate 51 and the second substrate 52 are bonded to form a liquid crystal cell, and the liquid crystal cell is subjected to polymer stable vertical alignment manufacturing processing, so that the chiral liquid crystal 81 and the achiral liquid crystal 82 form a pretilt angle.

Before the first substrate 51 and the second substrate 52 are oppositely arranged, the method further comprises the following steps: a barrier 9 is formed between the transmissive region 2 and the reflective region 3 to separate the chiral liquid crystal 81 and the achiral liquid crystal 82. And in the step of disposing the first substrate 51 and the second substrate 52 opposite to each other, the retaining wall 9 is located between the first substrate 51 and the second substrate 52.

After the step of manufacturing the first substrate 51 and the second substrate 52 and before the step of oppositely arranging the first substrate 51 and the second substrate 52, the method further comprises the following steps: manufacturing a first alignment film 61 on a side of the first substrate 51 facing the second substrate 52; manufacturing a second alignment film 62 on the side of the second substrate 52 facing the first substrate 51; manufacturing a first polarizer 41 on a side of the first substrate 51 away from the second substrate 52; and manufacturing a second polarizer 42 on a side of the second substrate 52 away from the first substrate 51.

Second embodiment

FIG. 4 is a pattern diagram of a first electrode 53 according to a second embodiment of the present application; fig. 5 is a schematic cross-sectional structure and an electric field response of a display panel 1 according to a second embodiment of the present application.

As shown in fig. 4 to 5, the present application provides a display panel 1, the display panel 1 has a transmissive region 2 and a reflective region 3, and the display panel 1 includes a first substrate 51, a second substrate 52, a liquid crystal layer 8, a barrier wall 9, a first alignment layer 61, a second alignment layer 62, a first polarizer 41, a second polarizer 42, and a reflective layer 7.

The first electrode 53 is structured as shown in fig. 2, the first electrode 53 includes a main electrode stem 531 and a branch electrode stem 532, the main electrode stem 531 surrounds the branch electrode stem 532, the branch electrode stems 532 are connected to the main electrode stem 531, and the branch electrode stems 532 are arranged in parallel to each other, thereby forming a grid structure. An included angle phi is formed between the electrode stem 531 and the electrode stem 532, the included angle is 0-30 degrees or 60-90 degrees, and the structure of the first electrode 53 can enable the liquid crystal transmittance of the transmission region 2 in the display panel 1 to reach 100% when liquid crystal is driven.

In addition, in the present embodiment, the structure of the second electrode 54 may be the same as or different from that of the first electrode 53, and in the present embodiment, the structure of the second electrode 54 is the same as that of the first electrode 53. The specific structure is shown in fig. 2.

In this embodiment, the display panel 1 is divided into a transmissive area 2 and a reflective area 3. In the transmissive region 2 and the reflective region 3, the respective layer structures of the first substrate 51 may be selected from transparent or translucent materials. In order to reflect light, in this embodiment, a reflective layer 7 is added between the first substrate 51 and the first electrode 53 corresponding to the reflective region 3. I.e. the reflective layer 7 is located in the reflective area 3 of the chiral liquid crystal 81.

The liquid crystal layer 8 is disposed between the first substrate 51 and the second substrate 52. In the transmissive region 2, the liquid crystal layer 8 is an achiral liquid crystal 82, and in the reflective region 3, the liquid crystal layer 8 is a chiral liquid crystal 81.

After the first substrate 51 and the second substrate 52 are attached to form a liquid crystal cell, the liquid crystal cell is subjected to polymer stable vertical alignment processing, that is, ultraviolet (UV) irradiation is performed by applying electricity, so that a pre-tilt angle is formed between the chiral liquid crystal 81 and the achiral liquid crystal 82, wherein the pre-tilt angle is an included angle between liquid crystal molecules and the substrates, and is used for providing an initial tilt direction for the liquid crystal molecules, so that the liquid crystal molecules tilt along the same direction under the action of an electric field, and the phenomenon of dark fringes caused by the disturbance of the liquid crystal molecules is avoided. The liquid crystal cell thickness of the transmission region 2 and the reflection region 3 is the same as the electrode pattern, and preferably, the liquid crystal cell thickness is 2.8 to 4.0 μm.

In the reflection region 3, the chiral liquid crystal 81 is a negative cholesteric liquid crystal, the optical path difference (Δ nd) is 400 to 550nm, and the pitch is 10 to 20 μm.

In the transmission region 2, the achiral liquid crystal 82 is a negative nematic liquid crystal, and the optical path difference is 300-400 nm.

In the non-power-up state, a vertical alignment liquid crystal (VA liquid crystal) display utilizes the orthotropic polarization of an upper polarizer and a lower polarizer to obtain an extremely low dark state; under the power-on state, the vertical incident visible light ray and the liquid crystal molecules have an included angle of 45 degrees, and when the effective optical path difference is equal to 1/2 of the visible light wavelength, the optimal bright state display is obtained. The effective optical path difference refers to the optical path difference reflected by the whole liquid crystal molecules after the liquid crystal molecules rotate under the action of an electric field. The effective optical path difference is different from the theoretical optical path difference of the prepared liquid crystal. The theoretical optical path difference (referred to as optical path difference for short) refers to the optical path difference that the liquid crystal molecules are completely rotated from a vertical state to a parallel state under the action of an ideal electric field, and the whole liquid crystal molecules are reflected.

Due to the self-spiral twisting effect of the chiral liquid crystal 81, the chiral liquid crystal 81 in the reflection region 3 tilts in all directions in the power-on state, and the effective optical path difference of the transmission region 2 is half of the optical path difference of the reflection region 3 under the same liquid crystal box thickness, namely, the transmission region 2 and the reflection region 3 present the same optical path difference, so that the transmittance is maximized.

A method of manufacturing the display panel 1 according to the second embodiment of the present application, which includes the following steps, will be described in detail below.

First, a first substrate 51 and a second substrate 52 are fabricated, wherein a first electrode 53 is formed in the first substrate 51, a second electrode 54 is formed in the second substrate 52, the first electrode 53 is disposed on a surface of the first substrate 51 facing the second substrate 52, the second electrode 54 is disposed on a surface of the second substrate 52 facing the first substrate 51, and a reflective layer 7 is formed on the surface of the first substrate 51 in the reflective region 3.

After that, the first substrate 51 and the second substrate 52 are disposed to face each other with the reflective layer 7 between the first substrate 51 and the first electrode 53.

Then, a liquid crystal layer 8 is formed between one surface of the first substrate 51 and the second substrate 52, including injection of an achiral liquid crystal 82 in the transmissive region 2 and injection of a chiral liquid crystal 81 in the reflective region 3.

Finally, the first substrate 51 and the second substrate 52 are bonded to form a liquid crystal cell, and the liquid crystal cell is subjected to polymer-stabilized vertical alignment processing to form a pretilt angle between the chiral liquid crystal 81 and the achiral liquid crystal 82.

According to the display panel and the manufacturing method thereof, the chiral liquid crystal 81 and the achiral liquid crystal 82 are selected and the same electrode design is matched, so that the brightness of the transmission region 2 and the reflection region 3 under the same liquid crystal box thickness is maximized, and the high-penetration semi-transparent and semi-reflective liquid crystal display is realized. Furthermore, the liquid crystal display can show good display effect in both weak light and strong light environments, thereby widening application scenes and increasing competitive advantages thereof.

In the above detailed description of the display panel and the manufacturing method thereof provided by the present embodiment, the principle and the embodiment of the present application are explained by applying specific examples, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A display panel having a transmissive region and a reflective region;

wherein the display panel includes:

in the transmission area, the liquid crystal layer is chiral liquid crystal, and in the reflection area, the liquid crystal layer is achiral liquid crystal; or in the transmission area, the liquid crystal layer is achiral liquid crystal, and in the reflection area, the liquid crystal layer is chiral liquid crystal;

wherein the first electrode comprises an electrode trunk and electrode branches, the electrode trunk surrounds the electrode branches, the electrode branches are connected to the electrode trunk, the electrode branches are arranged in parallel to each other to form a grid structure,

when the display panel is provided with the chiral liquid crystal in the transmission area, an included angle is formed between the electrode trunk and the electrode branch trunk, and the included angle is 0-30 degrees or 60-90 degrees;

when the display panel has the chiral liquid crystal in the reflection region, an included angle is formed between the electrode trunk and the electrode branches, and the included angle is 35-55 degrees.

2. The display panel according to claim 1, characterized by further comprising:

3. The display panel according to claim 1, further comprising a barrier wall disposed between the transmissive region and the reflective region for isolating the chiral liquid crystal and the achiral liquid crystal.

4. The display panel according to claim 1, characterized by further comprising:

5. The display panel of claim 1, wherein the chiral liquid crystal has a pitch of 10 to 20 μm and an optical path difference of 400 to 500nm, the achiral liquid crystal has an optical path difference of 300 to 400nm, and the liquid crystal layer has a cell thickness of 2.8 to 4.0 μm.

6. A manufacturing method for manufacturing the display panel according to claim 1, comprising the steps of:

disposing the first substrate and the second substrate opposite to each other with the reflective layer between the first substrate and the first electrode;

attaching the first substrate and the second substrate to form a liquid crystal box, and carrying out polymer stable vertical alignment manufacturing processing on the liquid crystal box to enable the chiral liquid crystal and the achiral liquid crystal to form a pre-tilt angle;

7. The manufacturing method according to claim 6, further comprising, before the first substrate and the second substrate are disposed to face each other, the steps of: a retaining wall is manufactured between the transmission region and the reflection region and used for isolating the chiral liquid crystal from the achiral liquid crystal;

8. The method according to claim 7, further comprising, after the step of manufacturing the first substrate and the second substrate and before the step of disposing the first substrate and the second substrate opposite to each other, the steps of:

and manufacturing a second polarizer on one side of the second substrate far away from the first substrate.