Display panel and display device

By setting a color resistance layer and a third quantum rod liquid crystal mixed layer in the semi-transmissive semi-reflective liquid crystal display panel, the problems of low color gamut and penetration in the transmission mode and low brightness in the reflection mode are solved, and high efficiency is achieved The display effect and power consumption are reduced.

CN116009305BActive Publication Date: 2024-12-24MIANYANG HKC OPTOELECTRONICS TECH CO LTD +1
View PDF 10 Cites 0 Cited by

Patent Information

Application Number
CN202211741803.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-29
Publication Date
2024-12-24
Estimated Expiration
2042-12-29

AI Technical Summary

Technical Problem

The existing semi-transmissive semi-reflective liquid crystal display panels have low color gamut and penetration in transmission mode and low brightness in reflection mode.

Method used

A display panel is designed, including a plurality of sub-pixel regions, each sub-pixel region includes adjacent transmission areas and reflection areas, by setting a chromatic resistance layer in the reflection area, and a third quantum rod liquid crystal mixed layer in the transmission electrode and the liquid crystal layer. In the intervening manner, a monochromatic quantum rod is included to absorb blue backlight and emit color polarized light, reduce the number of polarized layers, and improve the penetration rate of the transmission area and the brightness of the reflective area.

Benefits of technology

The color gamut and penetration rate in the transmissive display mode are improved, the power consumption of the display device is reduced, and the brightness is increased in the reflective display mode is reduced, the number of film layers on the display panel is reduced, and the lightness is achieved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116009305B_ABST
    Figure CN116009305B_ABST
Patent Text Reader

Abstract

The present application provides a display panel and a display device. The display panel has a plurality of sub-pixel areas, each of which includes an adjacent transmission area and a reflection area. The display panel includes a first substrate and a second substrate arranged opposite to each other and a liquid crystal layer arranged therebetween; it also includes a color resistance layer arranged between the first substrate and the liquid crystal layer and located in the reflection area, a first quantum rod liquid crystal mixing layer and a second quantum rod liquid crystal mixing layer arranged between the first substrate and the liquid crystal layer and located in the transmission area and the reflection area, respectively, and a third quantum rod liquid crystal mixing layer arranged between the transmission electrode and the liquid crystal layer and located in the transmission area. The first quantum rod liquid crystal mixing layer and the second quantum rod liquid crystal mixing layer are used to convert circularly polarized light into linearly polarized light or convert linearly polarized light into circularly polarized light, and the third quantum rod liquid crystal mixing layer is used to absorb blue backlight and stimulate emission of colored polarized light. The display panel improves the transmittance and color gamut of the transmission display mode, as well as the brightness of the reflection display mode.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Currently, liquid crystal display (LCD) devices are widely used in flat panel display fields such as LCD TVs, mobile phones, computer screens, laptop screens, and tablets due to their many advantages such as power saving, radiation reduction, and long service life.

[0003] At present, transmissive liquid crystal display panels have the advantages of high contrast and high brightness, but the required backlight consumes a lot of power and has poor visibility under strong light. Reflective liquid crystal display panels do not require a backlight and have low power consumption, but it is difficult to achieve image display functions in a dim light environment. In the prior art, semi-transmissive and semi-reflective liquid crystal display panels can not only use ambient light to reduce product power consumption, but also enhance visibility under sunlight.

[0004] However, the conventional semi-transmissive and semi-reflective liquid crystal panel has the problems of low color gamut and transmittance in the transmission mode and low brightness in the reflection mode due to the arrangement of the color resistance layer and the polarizing layer. Summary of the invention

[0005] The present application provides a display panel and a display device, aiming to solve the problems of low color gamut and transmittance in the transmission mode and low brightness in the reflection mode in the existing semi-transmissive and semi-reflective liquid crystal panels.

[0006] In order to solve the above technical problems, the first technical solution provided by the present application is: to provide a display panel. The display panel has a plurality of sub-pixel areas, each of which includes an adjacent transmission area and a reflection area; the display panel includes:

[0007] a first substrate;

[0008] a second substrate, arranged opposite to the first substrate;

[0009] A liquid crystal layer is disposed between the first substrate and the second substrate;

[0010] A pixel electrode is disposed between the second substrate and the liquid crystal layer, and is used to drive the liquid crystal layer; the pixel electrode comprises a transmission electrode located in the transmission area and a reflection electrode located in the reflection area;

[0011] Wherein, the display panel further includes:

[0012] A color resist layer, disposed between the first substrate and the liquid crystal layer and located in the reflective region, for filtering incident light into colored light;

[0013] A first quantum rod liquid crystal hybrid layer and a second quantum rod liquid crystal hybrid layer are arranged between the first substrate and the liquid crystal layer, and are respectively located in the transmission area and the reflection area; the first quantum rod liquid crystal hybrid layer and the second quantum rod liquid crystal hybrid layer both include first color mixing quantum rods and first liquid crystal molecules, and the first color mixing quantum rods are arranged along a first preset direction to convert circularly polarized light into linearly polarized light or convert linearly polarized light into circularly polarized light;

[0014] The third quantum rod liquid crystal mixed layer is arranged between the transmission electrode and the liquid crystal layer and is located in the transmission area. The third quantum rod liquid crystal mixed layer includes monochrome quantum rods and second liquid crystal molecules. The monochrome quantum rods are arranged along a second preset direction to absorb blue backlight and stimulate emission of colored polarized light.

[0015] The display panel further comprises a first polarizing layer and a second polarizing layer, wherein the first polarizing layer is arranged on a side of the first substrate away from the liquid crystal layer, and the second polarizing layer is arranged on a side of the second substrate away from the liquid crystal layer, and a light transmission axis of the second polarizing layer is perpendicular to a light transmission axis of the first polarizing layer;

[0016] The angle between the second preset direction and the transmittance axis of the second polarizing layer is 45°, so that the angle between the transmittance axis of the third quantum rod liquid crystal mixing layer and the transmittance axis of the second polarizing layer is 45°; the angle between the first preset direction and the transmittance axis of the first polarizing layer is 45°, so that the angle between the transmittance axis of the first quantum rod liquid crystal mixing layer and the transmittance axis of the first polarizing layer and the angle between the transmittance axis of the second quantum rod liquid crystal mixing layer and the transmittance axis of the first polarizing layer are both 45°.

[0017] Wherein, the display panel further includes:

[0018] A first polarizing layer is disposed on a side of the first substrate away from the liquid crystal layer;

[0019] A fourth quantum rod liquid crystal hybrid layer is disposed between the third quantum rod liquid crystal hybrid layer and the liquid crystal layer and is located in the transmission area, wherein the fourth quantum rod liquid crystal hybrid layer comprises second color mixing quantum rods and third liquid crystal molecules, wherein the second color mixing quantum rods are arranged along a third preset direction to convert linearly polarized light into circularly polarized light;

[0020] A polarizing layer is not disposed on a side of the second substrate away from the liquid crystal layer.

[0021] Among them, the second preset direction is perpendicular to the transmittance axis of the first polarizing layer, so that the transmittance axis of the third quantum rod liquid crystal mixing layer is perpendicular to the transmittance axis of the first polarizing layer; the angle between the third preset direction and the second preset direction is 45°, so that the angle between the transmittance axis of the fourth quantum rod liquid crystal mixing layer and the transmittance axis of the third quantum rod liquid crystal mixing layer is 45°; the angle between the first preset direction and the transmittance axis of the first polarizing layer is 45°, so that the angle between the transmittance axis of the first quantum rod liquid crystal mixing layer and the transmittance axis of the first polarizing plate and the angle between the transmittance axis of the second quantum rod liquid crystal mixing layer and the transmittance axis of the first polarizing plate are both 45°.

[0022] The display panel further includes a first alignment layer and a second alignment layer, wherein the first alignment layer is disposed between the liquid crystal layer and the first substrate, and the second alignment layer is disposed between the liquid crystal layer and the second substrate.

[0023] Among them, the first quantum rod liquid crystal mixed layer and the second quantum rod liquid crystal mixed layer are arranged between the liquid crystal layer and the first substrate and in contact with the liquid crystal layer, and the arrangement direction of the first liquid crystal molecules is perpendicular to the first preset direction, which is used to align the liquid crystal molecules in the liquid crystal layer; the display panel also includes a second alignment layer, and the second alignment layer is arranged between the liquid crystal layer and the second substrate.

[0024] Wherein, the second alignment layer is located in the reflective area, and is used to align the liquid crystal molecules in the liquid crystal layer located in the reflective area; the third quantum rod liquid crystal mixed layer is arranged between the liquid crystal layer and the transmissive electrode and is in contact with the liquid crystal layer, and the arrangement direction of the second liquid crystal molecules is perpendicular to the second preset direction, and is used to align the liquid crystal molecules in the liquid crystal layer located in the transmissive area; or,

[0025] The display panel also includes a fourth quantum rod liquid crystal mixing layer, which is arranged between the third quantum rod liquid crystal mixing layer and the liquid crystal layer, located in the transmission area, and in contact with the liquid crystal layer; the fourth quantum rod liquid crystal mixing layer includes second color mixing quantum rods and third liquid crystal molecules, the second color mixing quantum rods are arranged along a third preset direction, and the arrangement direction of the third liquid crystal molecules is perpendicular to the third preset direction, which is used to align the liquid crystal molecules in the liquid crystal layer located in the transmission area.

[0026] The display panel further includes a scattering layer, which is disposed between the first substrate and the liquid crystal layer and located on a side of the first quantum rod liquid crystal mixed layer close to the liquid crystal layer or a side away from the liquid crystal layer.

[0027] Among them, the first quantum rod liquid crystal mixed layer is arranged between the first substrate and the liquid crystal layer, and the scattering layer is arranged between the first quantum rod liquid crystal mixed layer and the liquid crystal layer; the color resistance layer is arranged between the first substrate and the liquid crystal layer, and the second quantum rod liquid crystal mixed layer is arranged between the color resistance layer and the liquid crystal layer.

[0028] In order to solve the above technical problem, the second technical solution provided by the present application is: to provide a display device, the display device comprising:

[0029] A backlight module, used for providing blue backlight;

[0030] The display panel is arranged on one side of the light emitting surface of the backlight module, and the display panel is the display panel involved in the above technical solution.

[0031] Beneficial effects of the present application: Different from the prior art, the present application provides a display device and a display panel thereof, wherein the display panel has a plurality of sub-pixel areas, each sub-pixel area includes an adjacent transmission area and a reflection area, the display panel includes a first substrate and a second substrate that are relatively arranged and a liquid crystal layer arranged between the first substrate and the second substrate, the display panel is configured such that the color resistance layer is arranged between the first substrate and the liquid crystal layer and is located in the reflection area, the third quantum rod liquid crystal mixed layer is arranged between the transmission electrode and the liquid crystal layer and is located in the transmission area, and the third quantum rod liquid crystal mixed layer includes monochrome quantum rods and second liquid crystal molecules, and the monochrome quantum rods are arranged along a second preset direction, so that the third quantum rod liquid crystal mixed layer can be used to absorb blue backlight and Stimulated emission of colored polarized light, that is, the third quantum rod liquid crystal mixing layer has both a polarization function and a color blocking function, so that the transmission area does not need to be provided with a color blocking layer, and the number of polarization layers can be reduced at the same time, thereby reducing the loss of light in the transmission area and improving the transmittance of the transmission area. By making the third quantum rod liquid crystal mixing layer include monochrome quantum rods and using the monochrome quantum rods to stimulate emission of colored light of corresponding colors, the color gamut in the transmission display mode can be effectively improved; and by arranging the third quantum rod liquid crystal mixing layer between the transmission electrode and the liquid crystal layer, the transmission area on the side of the liquid crystal layer close to the first substrate does not need to be provided with a color blocking layer, which can increase the amount of ambient light entering the reflective area, thereby effectively improving the brightness of the display panel in the reflective display mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1is a schematic diagram of a longitudinal cross-sectional structure of a display panel provided in the first embodiment of the present application;

[0034] Figure 2 This is a schematic diagram of the structure of a quantum rod liquid crystal hybrid layer provided in one embodiment of the present application;

[0035] Figure 3 is a schematic diagram of the light state of the display panel in a dark state provided by the first embodiment of the present application;

[0036] Figure 4 is a schematic diagram of the light state of the display panel in the bright state provided by the first embodiment of the present application;

[0037] Figure 5 is a schematic diagram of a longitudinal cross-sectional structure of a display panel provided in a second embodiment of the present application;

[0038] Figure 6 is a schematic diagram of a longitudinal cross-sectional structure of a display panel provided in a third embodiment of the present application;

[0039] Figure 7 is a schematic diagram of a longitudinal cross-sectional structure of a display panel provided in a fourth embodiment of the present application;

[0040] Figure 8 is a schematic diagram of a longitudinal cross-sectional structure of a display panel provided in a fifth embodiment of the present application;

[0041] Fig. 9 It is a schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0042] Reference numerals:

[0043] 100-display panel; 10-first substrate; 11-color resistance layer; 12-first quantum rod liquid crystal mixing layer; 13-second quantum rod liquid crystal mixing layer; 14-first alignment layer; 15-first polarizing layer; 16-scattering layer; 20-second substrate; 21-pixel electrode; 211-transmission electrode; 212-reflection electrode; 22-third quantum rod liquid crystal mixing layer; 23-second alignment layer; 24-second polarizing layer; 25-fourth quantum rod liquid crystal mixing layer; 30-liquid crystal layer; 40-sub-pixel area; 41-transmission area; 42-reflection area; 50-quantum rod liquid crystal mixing layer; 51-transparent substrate; 52-quantum rods; 53-aligned liquid crystal molecules; 200-backlight module. DETAILED DESCRIPTION

[0044] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0045] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application.

[0047] All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in this application belong to this invention.

[0048] The scope of protection sought.

[0049] The terms "first", "second" and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the technical features indicated.

[0050] Thus, a feature defined as "first", "second", or "third" may explicitly indicate zero or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is

[0051] At least two, for example, two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement situation, etc. between the components in a certain specific posture (as shown in the drawings).

[0052] If the specific posture changes, the directional indication will also change accordingly. 5 In addition, the terms "include" and "have" and any variations thereof are intended to cover

[0053] For example, a process, method, system, product or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to the process, method, product or apparatus.

[0054] 0 Reference to "embodiment" in this document means that the specific features, structures,

[0055] The structure or characteristic may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0056] 5 The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0057] See also Figure 1, Figure 1 A schematic diagram of the longitudinal cross-sectional structure of a display panel provided in the first embodiment of the present application. In this embodiment, a display panel 100 is provided, the display panel 100 having a plurality of sub-pixel regions 40, each sub-pixel region 40 including adjacent transmissive regions 41 and reflective regions 42, in a dark environment, a transmissive display mode can be adopted to realize image display through the transmissive region 41, and in a strong light environment, a reflective display mode can be adopted to realize image display through the reflective region 42, so that the display panel 100 can reduce power consumption and improve visibility under strong light.

[0058] Specifically, the display panel 100 includes a first substrate 10, a second substrate 20 and a liquid crystal layer 30; the first substrate 10 and the second substrate 20 are arranged opposite to each other, and the liquid crystal layer 30 is arranged between the first substrate 10 and the second substrate 20. Specifically, the first substrate 10 and the second substrate 20 are transparent substrates so that light can pass through; wherein the second substrate 20 is an array substrate for generating a driving signal to drive the liquid crystal molecules of the liquid crystal layer 30 to rotate. wherein the thickness of the portion of the liquid crystal layer 30 located in the transmission area 41 is twice the thickness of the portion of the liquid crystal layer 30 located in the reflection area 42, so that the optical path of the light in the transmission area 41 in the liquid crystal layer 30 is the same as the optical path of the light in the reflection area 42 in the liquid crystal layer 30, which is convenient for setting the angle of the light transmission axis of the polarizing plate and other films with polarization effect and designing the driving circuits of the transmission display mode and the reflection display mode.

[0059] The display panel 100 further includes a pixel electrode 21, which is disposed between the second substrate 20 and the liquid crystal layer 30 and is electrically connected to the second substrate 20 for driving the liquid crystal layer 30. Specifically, the pixel electrode 21 includes a transmissive electrode 211 located in the transmissive region 41 and a reflective electrode 212 located in the reflective region 42. The transmissive electrode 211 is disposed in the transmissive region 41 of each sub-pixel region 40, and the reflective electrode 212 is disposed in the reflective region 42, so as to drive the liquid crystal molecules located in the transmissive region 41 and the liquid crystal molecules located in the reflective region 42 of each sub-pixel region 40 respectively. The transmissive electrode 211 is a transparent conductive material, such as indium tin oxide (ITO), indium zinc oxide (IZO), etc., so that light can pass through the transmissive electrode 211 into the liquid crystal layer 30, thereby realizing a transmissive display mode; the reflective electrode 212 is a conductive material with high reflectivity, such as aluminum, silver, copper, iron or alloys thereof, etc., for reflecting light to the first substrate 10, thereby realizing a reflective display mode.

[0060] Specifically, the display panel 100 also includes a first alignment layer 14 and a second alignment layer 23. The first alignment layer 14 is arranged between the liquid crystal layer 30 and the first substrate 10, and is in contact with the liquid crystal layer 30. The second alignment layer 23 is arranged between the liquid crystal layer 30 and the second substrate 20, and is in contact with the liquid crystal layer 30, so as to pre-align the liquid crystal molecules in the liquid crystal layer 30. The specific alignment process can refer to the existing technology and is not introduced in detail here.

[0061] Further, the display panel 100 also includes a first quantum rod liquid crystal mixed layer 12 and a second quantum rod liquid crystal mixed layer 13 disposed between the first substrate 10 and the liquid crystal layer 30, wherein the first quantum rod liquid crystal mixed layer 12 is located in the transmission area 41, and the second quantum rod liquid crystal mixed layer 13 is located in the reflection area 42. The first quantum rod liquid crystal mixed layer 12 and the second quantum rod liquid crystal mixed layer 13 both include first color mixing quantum rods and first liquid crystal molecules, wherein the first color mixing quantum rods are arranged along a first preset direction to convert circularly polarized light into linearly polarized light or convert linearly polarized light into circularly polarized light; specifically, the first color mixing quantum rods are arranged along the first preset direction, which means that the first color mixing quantum rods are rod-shaped, and their axial direction is parallel to the first preset direction, which can also be understood as the length direction of the first color mixing quantum rods is parallel to the first preset direction. For the specific structure and preparation method of the first quantum rod liquid crystal mixed layer 12 and the second quantum rod liquid crystal mixed layer 13, please refer to the detailed introduction below.

[0062] Specifically, see Figure 2 , Figure 2 1 is a schematic diagram of the structure of a quantum rod liquid crystal hybrid layer provided in an embodiment of the present application. In this embodiment, a quantum rod liquid crystal hybrid layer 50 is provided, and the specific structure, function and preparation method of the first quantum rod liquid crystal hybrid layer 12 and the second quantum rod liquid crystal hybrid layer 13 are the same or similar to the specific structure, function and preparation method of the quantum rod liquid crystal hybrid layer 50, and can achieve the same technical effect. Specifically, the quantum rod liquid crystal mixed layer 50 includes quantum rods 52 and aligned liquid crystal molecules 53, wherein the aligned liquid crystal molecules 53 are arranged in a preset direction, that is, the axial direction of the aligned liquid crystal molecules 53 is parallel to the preset direction; the surface of the quantum rods 52 has modified ligands, so that the quantum rods 52 can cross-combine with the aligned liquid crystal molecules 53, so that the arrangement direction of the quantum rods 52 is perpendicular to the arrangement direction of the aligned liquid crystal molecules 53, and thus the arrangement direction of the quantum rods 52 can be controlled by pre-aligning the aligned liquid crystal molecules 53, so that the quantum rods 52 can be arranged in a direction according to the preset direction, so that the quantum rods 52 arranged in a direction have a polarization function, which can convert natural light into linear polarized light, or can cooperate with other film layers with polarization function to convert linear polarized light into circular polarized light or circular polarized light into linear polarized light. Among them, the arrangement direction of the quantum rods 52 refers to the length direction of the quantum rods 52.

[0063] In this embodiment, the method for preparing the quantum rod liquid crystal mixed layer 50 may include the following steps:

[0064] S1: providing a transparent substrate 51;

[0065] S2: coating an azo dye on the transparent substrate 51 and irradiating it with ultraviolet light for alignment;

[0066] S3: coating a mixture of quantum rods 52 and aligned liquid crystal molecules 53 on the aligned azo dye film layer.

[0067] Among them, the transparent substrate 51 can be a transparent insulating material, such as quartz, glass, organic glass, acrylic or other high molecular organic materials, and the size, shape and thickness of the substrate can be set according to actual needs. Then, ultraviolet polarized light is used to irradiate the azo dye arranged on the transparent substrate 51 to align the azo dye film layer, and after alignment, the molecules of the azo dye will be arranged in a direction perpendicular to the ultraviolet polarized light; then, a mixture of quantum rods 52 and aligned liquid crystal molecules 53 is coated on the aligned azo dye film layer, and the aligned liquid crystal molecules 53 in the mixture will be arranged along the arrangement direction of the azo dye molecules, that is, the aligned liquid crystal molecules 53 are also oriented in a direction perpendicular to the ultraviolet polarized light. The surface of the quantum rod 52 has a modified ligand, so that the quantum rod 52 and the aligned liquid crystal molecules 53 are cross-bound with each other, so that the quantum rod 52 is arranged in a direction perpendicular to the aligned liquid crystal molecules 53, so that the oriented quantum rod 52 has a polarization function, which can convert natural light into linear polarized light, and can also convert linear polarized light into circular polarized light or circular polarized light into linear polarized light. The arrangement direction of the quantum rods 52 is the light transmission axis of the quantum rod liquid crystal hybrid layer 50 .

[0068] In this embodiment, the quantum rod 52 can be a monochrome quantum rod or a mixed color quantum rod. The monochrome quantum rod includes one of a red quantum rod, a green quantum rod or a blue quantum rod, which can absorb blue light and emit light of the corresponding color upon stimulation, that is, the red quantum rod can absorb blue light and emit red light upon stimulation, the green quantum rod can absorb blue light and emit green light upon stimulation, and the blue quantum rod absorbs blue light and emits blue light upon stimulation, so that the quantum rod liquid crystal mixing layer 50 has both polarization and color resistance effects, and by using the quantum rod 52 to stimulate the emission of colored light, the color gamut can be effectively improved; the mixed color quantum rod includes a mixture of red quantum rods, green quantum rods and blue quantum rods, and the directionally arranged mixed color quantum rods only change the polarization state of the light, but do not change the color of the light.

[0069] Please continue reading Figure 1In this embodiment, in the transmission display mode, the first quantum rod liquid crystal hybrid layer 12 is used to convert the circularly polarized light passing through the liquid crystal layer 30 into linearly polarized light. When the direction of the linear polarized light is parallel to the light transmission axis of the first polarizing layer 15, it can pass through the first polarizing layer 15 and appear in a bright state. When the direction of the linear polarized light is perpendicular to the light transmission axis of the first polarizing layer 15, it cannot pass through the first polarizing layer 15 and appears in a dark state, thereby realizing image display; in the reflection display mode, the second quantum rod liquid crystal hybrid layer 13 is used to convert the linearly polarized light passing through the first polarizing layer 15 into circularly polarized light, and convert the circularly polarized light reflected from the reflective electrode 212 and passing through the liquid crystal layer 30 into linearly polarized light. When the direction of the linear polarized light is parallel to the light transmission axis of the first polarizing layer 15, it can pass through the first polarizing layer 15 and appear in a bright state. When the direction of the linear polarized light is perpendicular to the light transmission axis of the first polarizing layer 15, it cannot pass through the first polarizing layer 15 and appears in a dark state, thereby realizing image display. Specifically, the operation process of the light of the display panel 100 in the transmissive display mode and in the reflective display mode is described below. Figure 3 and Figure 4 The specific description of the embodiments is not given here.

[0070] In this embodiment, the display panel 100 further includes a color resist layer 11, a scattering layer 16, and a third quantum rod liquid crystal mixed layer 22. The color resist layer 11 is disposed between the first substrate 10 and the liquid crystal layer 30, and is located in the reflective region 42, so as to filter the incident light into colored light of corresponding colors, and by only disposing the color resist layer 11 in the reflective region 42, and not disposing the color resist layer 11 in the transmissive region 41 between the first substrate 10 and the liquid crystal layer 30, the loss of ambient light passing through the first substrate 10 from the transmissive region 41 can be reduced, that is, the amount of ambient light entering the reflective region 42 from the transmissive region 41 through the first substrate 10 is increased, thereby increasing the amount of light entering the reflective region 42, thereby effectively improving the brightness of the display panel 100 in the reflective display mode.

[0071] The scattering layer 16 is disposed between the first substrate 10 and the liquid crystal layer 30, and is located in the transmission area 41. Specifically, the scattering layer 16 can be disposed on a side of the first quantum rod liquid crystal mixed layer 12 close to the liquid crystal layer 30 or on a side away from the liquid crystal layer 30. By disposing the scattering layer 16 between the first substrate 10 and the liquid crystal layer 30, and making the scattering layer 16 located in the transmission area 41, more ambient light can enter the reflection area 42 through the scattering layer 16, further increasing the amount of light entering the reflection area 42, thereby further improving the image display brightness in the reflective display mode.

[0072] The third quantum rod liquid crystal hybrid layer 22 is disposed between the transmission electrode 211 and the liquid crystal layer 30, and is located in the transmission area 41 to perform light conversion on the incident light of the transmission area 41. Specifically, the third quantum rod liquid crystal hybrid layer 22 includes monochrome quantum rods and second liquid crystal molecules, and the monochrome quantum rods are arranged along the second preset direction to absorb blue backlight and stimulate emission of colored polarized light. The length direction of the monochrome quantum rods is parallel to the second preset direction, so that the third quantum rod liquid crystal hybrid layer 22 can change the polarization state of light to cooperate with other film layers of the display panel 100 to realize image display. By setting the third quantum rod liquid crystal mixed layer 22 between the transmission electrode 211 and the liquid crystal layer 30, that is, setting it on the side of the liquid crystal layer 30 away from the first substrate 10, so that the side of the liquid crystal layer 30 close to the first substrate 10 does not need to be provided with a color resistance layer 11, not only can the amount of ambient light entering the reflection area 42 be increased, but also the number of polarizing layers can be reduced, so that the number of film layers in the transmission area 41 of the display panel 100 is reduced, which can effectively reduce the loss of light in the transmission area 41, thereby improving the transmittance of the transmission area 41, improving the display brightness, and reducing power consumption. Moreover, by using quantum rods to stimulate emission of colored light, the color gamut can be effectively improved. The specific structure and preparation method of the third quantum rod liquid crystal mixed layer 22 are the same or similar to the specific structure and preparation method of the quantum rod liquid crystal mixed layer 50 involved in the above embodiment. Please refer to the above specific introduction for details, which will not be repeated here.

[0073] In this embodiment, the display panel 100 further includes a first polarizing layer 15 and a second polarizing layer 24; the first polarizing layer 15 is arranged on the side of the first substrate 10 away from the liquid crystal layer 30, and is used to allow light to pass through and appear in a bright state or to block the light and appear in a dark state, and is used to convert natural light into linearly polarized light; the second polarizing layer 24 is arranged on the side of the second substrate 20 away from the liquid crystal layer 30, and the transmittance axis of the second polarizing layer 24 is perpendicular to the transmittance axis of the first polarizing layer 15, and is used to convert backlight into linearly polarized light.

[0074] Specifically, the first quantum rod liquid crystal hybrid layer 12 is disposed between the first substrate 10 and the liquid crystal layer 30, and the scattering layer 16 is disposed between the first quantum rod liquid crystal hybrid layer 12 and the liquid crystal layer 30; the color resistance layer 11 is disposed between the first substrate 10 and the liquid crystal layer 30, and the second quantum rod liquid crystal hybrid layer 13 is disposed between the color resistance layer 11 and the liquid crystal layer 30.

[0075] Specifically, the angle between the second preset direction and the light transmission axis of the second polarizing layer 24 is 45°, so that the angle between the light transmission axis of the third quantum rod liquid crystal mixing layer 22 and the light transmission axis of the second polarizing layer 24 is 45°; the angle between the first preset direction and the light transmission axis of the first polarizing layer 15 is 45°, so that the angle between the light transmission axis of the first quantum rod liquid crystal mixing layer 12 and the light transmission axis of the first polarizing layer 15 and the angle between the light transmission axis of the second quantum rod liquid crystal mixing layer 13 and the light transmission axis of the first polarizing layer 15 are both 45°, so that the various film layers cooperate with each other to realize image display. Specifically, the path and state of light when each sub-pixel displays the dark state and the bright state are described in detail below.

[0076] See also Figure 3 , Figure 3 Schematic diagram of the light state of the display panel provided in the first embodiment of the present application in the dark state. In this embodiment, the second substrate 20 does not apply voltage to the transmissive electrode 211 and the reflective electrode 212 or applies the same voltage as the common electrode, the electric field strength in the sub-pixel area 40 is zero, and the sub-pixel is in the transmissive mode, and the backlight module 200 (see Figure 8 ) is converted into linear polarized light after passing through the second polarizing layer 24, and the polarization direction of the linear polarized light is parallel to the light transmission axis of the second polarizing layer 24, and then it is converted into circular polarized light after passing through the third quantum rod liquid crystal mixed layer 22. Since the electric field intensity is zero, the liquid crystal molecules in the liquid crystal layer 30 do not rotate, and the circular polarized light does not change after passing through the liquid crystal layer 30. It is converted into linear polarized light after passing through the first quantum rod liquid crystal mixed layer 12, and the polarization direction of the linear polarized light is parallel to the light transmission axis of the second polarizing layer 24. Since the light transmission axis of the first polarizing layer 15 is perpendicular to the light transmission axis of the second polarizing layer 24, the polarization direction of the linear polarized light is perpendicular to the light transmission axis of the first polarizing layer 15 and cannot pass through the first polarizing layer 15, thereby displaying a dark state.

[0077] In this embodiment, the second substrate 20 does not apply a voltage to the transmissive electrode 211 and the reflective electrode 212, or applies the same voltage as the common electrode. The electric field strength in the sub-pixel area 40 is zero. In the reflective mode of the sub-pixel, the ambient light is converted into linearly polarized light after passing through the first polarizing layer 15. The polarization direction of the linearly polarized light is parallel to the light transmission axis of the first polarizing layer 15, and then it is converted into circularly polarized light after passing through the second quantum rod liquid crystal hybrid layer 13. Since the electric field strength is zero, the liquid crystal molecules in the liquid crystal layer 30 are rotated, and the circularly polarized light does not change after passing through the liquid crystal layer 30. After being reflected by the reflective electrode 212, it is converted into circularly polarized light with the opposite rotation direction. After passing through the liquid crystal layer 30 again, the polarization direction does not change. Then, after passing through the second quantum rod liquid crystal hybrid layer 13 again, it is converted into linearly polarized light. The polarization direction of the linearly polarized light is perpendicular to the light transmission axis of the first polarizing layer 15 and cannot pass through the first polarizing layer 15, thereby displaying a dark state.

[0078] See also Figure 4 , Figure 4 It is a schematic diagram of the light state of the display panel in the bright state provided by the first embodiment of the present application. In this embodiment, the second substrate 20 applies voltage to the transmission electrode 211 and the reflection electrode 212 to form an electric field of a preset intensity in the sub-pixel area 40. When the sub-pixel is in the transmission mode, the blue backlight of the backlight module 200 is converted into linear polarized light after passing through the second polarizing layer 24. The polarization direction of the linear polarized light is parallel to the light transmission axis of the second polarizing layer 24, and then it is converted into circular polarized light after passing through the third quantum rod liquid crystal hybrid layer 22. The liquid crystal molecules in the liquid crystal layer 30 are deflected accordingly under the action of the electric field. The circular polarized light is converted into circular polarized light with the opposite rotation direction after passing through the liquid crystal layer 30, and then it is converted into linear polarized light after passing through the first quantum rod liquid crystal hybrid layer 12. The polarization direction of the linear polarized light is perpendicular to the light transmission axis of the second polarizing layer 24. Since the light transmission axis of the first polarizing layer 15 is also perpendicular to the light transmission axis of the second polarizing layer 24, the polarization direction of the linear polarized light is parallel to the light transmission axis of the first polarizing layer 15, and it can pass through the first polarizing layer 15, thereby displaying a bright state.

[0079] In this embodiment, the second substrate 20 applies voltage to the transmissive electrode 211 and the reflective electrode 212 to form an electric field of a preset intensity in the sub-pixel area 40. In the reflective mode of the sub-pixel, the ambient light is converted into linearly polarized light after passing through the first polarizing layer 15. The polarization direction of the linearly polarized light is parallel to the light transmission axis of the first polarizing layer 15. Then, the linearly polarized light is converted into circularly polarized light after passing through the second quantum rod liquid crystal mixed layer 13. The liquid crystal molecules in the liquid crystal layer 30 are deflected accordingly under the action of the electric field. Moreover, since the thickness of the partial liquid crystal layer 30 in the reflective area 42 is twice the thickness of the partial liquid crystal layer 30 in the transmissive area 41, the liquid crystal molecules in the liquid crystal layer 30 are deflected accordingly under the action of the electric field. One-half, the circularly polarized light is converted into elliptically polarized light with unchanged rotation direction after passing through the liquid crystal layer 30, and then converted into elliptically polarized light with opposite rotation direction after being reflected by the reflective electrode 212, and then converted into circularly polarized light with opposite rotation direction after passing through the liquid crystal layer 30 again. It should be noted that the opposite rotation direction here is compared with the rotation direction of the elliptically polarized light that has not passed through the liquid crystal layer 30 after being reflected by the reflective electrode 212, and then converted into linearly polarized light after passing through the second quantum rod liquid crystal mixed layer 13 again. The polarization direction of the linearly polarized light is parallel to the light transmission axis of the first polarizing layer 15, and can pass through the first polarizing layer 15, thereby displaying a bright state.

[0080] See also Figure 5 , Figure 5: is a schematic diagram of the longitudinal cross-sectional structure of the display panel provided in the second embodiment of the present application. Different from the display panel 100 in the first embodiment, in this embodiment, the display panel 100 includes a first polarizing layer 15, and the first polarizing layer 15 is arranged on the side of the first substrate 10 away from the liquid crystal layer 30, and no polarizing layer is arranged on the side of the second substrate 20 away from the liquid crystal layer 30. Further, the display panel 100 also includes a fourth quantum rod liquid crystal mixing layer 25, and the fourth quantum rod liquid crystal mixing layer 25 is arranged between the third quantum rod liquid crystal mixing layer 22 and the liquid crystal layer 30, and is located in the transmission area 41. The fourth quantum rod liquid crystal mixing layer 25 includes a second color mixing quantum rod and a third liquid crystal molecule, and the second color mixing quantum rod is arranged along a third preset direction to convert linear polarized light into circularly polarized light. Among them, the specific structure and preparation method of the fourth quantum rod liquid crystal mixing layer 25 are the same or similar to the specific structure and preparation method of the quantum rod liquid crystal mixing layer 50 involved in the above embodiment. Please refer to the above specific introduction for details, and no further description will be given here.

[0081] Specifically, the second preset direction is perpendicular to the light transmission axis of the first polarizing layer 15, so that the light transmission axis of the third quantum rod liquid crystal mixing layer 22 is perpendicular to the light transmission axis of the first polarizing plate; the angle between the third preset direction and the second preset direction is 45°, so that the angle between the light transmission axis of the fourth quantum rod liquid crystal mixing layer 25 and the light transmission axis of the third quantum rod liquid crystal mixing layer 22 is 45°; the angle between the first preset direction and the light transmission axis of the first polarizing layer 15 is 45°, so that the angle between the light transmission axis of the first quantum rod liquid crystal mixing layer 12 and the light transmission axis of the first polarizing plate and the angle between the light transmission axis of the second quantum rod liquid crystal mixing layer 13 and the light transmission axis of the first polarizing plate are both 45°.

[0082] In this embodiment, by making the transmission axis of the third quantum rod liquid crystal mixed layer 22 perpendicular to the transmission axis of the first polarizing plate, the third quantum rod liquid crystal mixed layer 22 can absorb the blue backlight and be stimulated to emit colored linear polarized light of the corresponding color, which not only has a color blocking effect, but also has a polarization effect, and can replace the second polarizing layer 24 in the first embodiment. There is no need to set a polarizing layer on the side of the second substrate 20 away from the liquid crystal layer 30, thereby reducing the number of polarizing layers, reducing the loss of incident light in the transmission area 41, and can further improve the transmittance of light in the transmission area 41. , improve display brightness and reduce power consumption; by making the angle between the light transmission axis of the fourth quantum rod liquid crystal mixing layer 25 and the light transmission axis of the third quantum rod liquid crystal mixing layer 22 45°, the blue backlight can be converted into linear polarized light of the corresponding color through the third quantum rod liquid crystal mixing layer 22, and then converted into corresponding circular polarized light through the fourth quantum rod liquid crystal mixing layer 25, thereby cooperating with the liquid crystal layer 30, the first quantum rod liquid crystal mixing layer 12 and the first polarizing layer 15 to realize image display; specifically, the path and state of the light in each sub-pixel when displaying the dark state and the bright state are the same as Figure 3 and Figure 4 The embodiments are similar, and the details can be referred to the relevant introduction above, which will not be repeated here.

[0083] See also Figure 6 , Figure 6 1 is a schematic diagram of the longitudinal cross-sectional structure of the display panel provided in the third embodiment of the present application. Different from the second embodiment, in this embodiment, the first quantum rod liquid crystal mixing layer 12 and the second quantum rod liquid crystal mixing layer 13 are arranged between the liquid crystal layer 30 and the first substrate 10 and in contact with the liquid crystal layer 30, and the arrangement direction of the first liquid crystal molecules in the first quantum rod liquid crystal mixing layer 12 and the second quantum rod liquid crystal mixing layer 13 is perpendicular to the first preset direction of the first color mixing quantum rod, which is used to align the liquid crystal molecules in the liquid crystal layer 30; the display panel 100 also includes a second alignment layer 23, which is arranged between the liquid crystal layer 30 and the second substrate 20.

[0084] Specifically, the first quantum rod liquid crystal mixed layer 12 and the second quantum rod liquid crystal mixed layer 13 are in contact with the liquid crystal layer 30, and can be used to align the liquid crystal in the liquid crystal layer 30. It is easy to understand from the above introduction to the preparation method of the quantum rod liquid crystal mixed layer that the arrangement direction of the first liquid crystal molecules is perpendicular to the arrangement direction of the first color mixing quantum rods, and the angle between the arrangement direction of the first color mixing quantum rods and the light transmission axis of the first polarizing layer 15 is 45°, so that the arrangement direction of the first liquid crystal molecules in the first quantum rod liquid crystal mixed layer 12 and the second quantum rod liquid crystal mixed layer 13 is parallel to the alignment of the liquid crystal molecules in the liquid crystal layer 30, so that the first quantum rod liquid crystal mixed layer 12 and the second quantum rod liquid crystal mixed layer 13 can align the liquid crystal molecules in the liquid crystal layer 30, that is, the first quantum rod liquid crystal mixed layer 12 and the second quantum rod liquid crystal mixed layer 13 can also be used as alignment layers, thereby reducing the number of alignment layers, thereby saving the process of alignment layers and alignment processes, improving production efficiency, and further reducing the number of film layers, which is conducive to the transmission of light and the thinness of the display panel 100.

[0085] See also Figure 7 , Figure 7 : is a schematic diagram of the longitudinal cross-sectional structure of the display panel provided in the fourth embodiment of the present application. Different from the previous embodiment, in this embodiment, the second alignment layer 23 is located in the reflection area 42, and is used to align the liquid crystal molecules in the liquid crystal layer 30 located in the reflection area 42; the third quantum rod liquid crystal mixed layer 22 or the fourth quantum rod liquid crystal mixed layer 25 is arranged between the liquid crystal layer 30 and the transmission electrode 211 and in contact with the liquid crystal layer 30, and the arrangement direction of the second liquid crystal molecules is perpendicular to the second preset direction, or the arrangement direction of the third liquid crystal molecules is perpendicular to the second preset direction, and is used to align the liquid crystal molecules in the liquid crystal layer 30 located in the transmission area 41.

[0086] Specifically, in this embodiment, the display panel 100 includes a second polarizing layer 24 and a third quantum rod liquid crystal mixing layer 22 , and a fourth quantum rod liquid crystal mixing layer 25 is not provided. The third quantum rod liquid crystal mixing layer 22 is in contact with the liquid crystal and can be used to align the liquid crystal in the liquid crystal layer 30 . It is easy to understand from the above introduction to the preparation method of the quantum rod liquid crystal hybrid layer that the arrangement direction of the second liquid crystal molecules is perpendicular to the arrangement direction of the first mixed-color quantum rods, and the angle between the arrangement direction of the monochrome quantum rods and the light transmission axis of the second polarizing layer 24 is 45°, so that the arrangement direction of the second liquid crystal molecules in the third quantum rod liquid crystal hybrid layer 22 is parallel to the alignment of the liquid crystal molecules in the liquid crystal layer 30, so that the third quantum rod liquid crystal hybrid layer 22 can align the liquid crystal molecules in the liquid crystal layer 30, that is, the third quantum rod liquid crystal hybrid layer 22 can also be used as a partial alignment layer of the transmission area 41, further reducing the setting of the partial alignment layer of the transmission area 41, and the second alignment layer 23 is only located in the reflection area 42, which can further reduce the number of film layers in the transmission area 41, which is beneficial to the transmission of light and the thinness of the display panel 100.

[0087] See also Figure 8 , Figure 8 1 is a schematic diagram of the longitudinal cross-sectional structure of the display panel provided in the fifth embodiment of the present application. In this embodiment, the display panel 100 includes a third quantum rod liquid crystal mixing layer 22 and a fourth quantum rod liquid crystal mixing layer 25, the fourth quantum rod liquid crystal mixing layer 25 is disposed between the third quantum rod liquid crystal mixing layer 22 and the liquid crystal layer 30, is located in the transmission area, and is in contact with the liquid crystal layer 30, the fourth quantum rod liquid crystal mixing layer 25 includes a second color mixing quantum rod and a third liquid crystal molecule, the second color mixing quantum rod is arranged along a third preset direction, and the arrangement direction of the third liquid crystal molecule is perpendicular to the third preset direction, which can be used to align the liquid crystal in the liquid crystal layer 30. Similar to the fourth embodiment, in this embodiment, the arrangement direction of the third liquid crystal molecules in the fourth quantum rod liquid crystal mixing layer 25 is parallel to the alignment of the liquid crystal molecules in the liquid crystal layer 30, so that the fourth quantum rod liquid crystal mixing layer 25 and the second quantum rod liquid crystal mixing layer 13 can align the liquid crystal molecules in the liquid crystal layer 30, that is, the fourth quantum rod liquid crystal mixing layer 25 can also be used as a partial alignment layer of the transmission area 41, further reducing the setting of the partial alignment layer of the transmission area 41, and the second alignment layer 23 is only located in the reflection area 42, which can further reduce the number of film layers in the transmission area 41, which is beneficial to the transmission of light and the thinness of the display panel 100.

[0088] See also Fig. 9 , Fig. 91 is a schematic diagram of a display device provided in an embodiment of the present application. In this embodiment, a display device is provided, which has a transmissive display mode and a reflective display mode. In a dark environment, the transmissive display mode can be used, and in a strong light environment, the reflective display mode can be used, thereby reducing the power consumption of the display device and improving visibility under strong light.

[0089] Specifically, the display device includes a backlight module 200 and a display panel 100 arranged opposite to each other. The backlight module 200 is used to provide blue backlight to the display panel 100. The backlight module 200 can be a side-entry backlight module 200 or a direct-type backlight module 200, which can be selected and designed according to actual needs and is not specifically limited thereto.

[0090] The display panel 100 is disposed on one side of the light emitting surface of the backlight module 200 to realize the transmissive display mode by receiving the blue backlight. The specific structure and function of the display panel 100 are the same or similar to the specific structure and function involved in the above embodiment, and can achieve the same technical effect. For details, please refer to the above specific introduction, which will not be repeated here.

[0091] The display device achieves the same technical effects by making the specific structure and function of the display panel 100 the same or similar to the specific structure and function involved in the above-mentioned embodiments, thereby improving the color gamut and transmittance in the transmissive display mode, reducing the power consumption of the display device, and also improving the brightness in the reflective display mode, reducing the number of film layers in the display panel 100, thereby reducing the thickness of the display panel 100, which is conducive to the thinness of the display device.

[0092] The above are only implementation methods of the present application, and are not intended to limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel having a plurality of sub-pixel regions, each of which comprises an adjacent transmission region and a reflection region; the display panel comprising: a first substrate; a second substrate, arranged opposite to the first substrate; A liquid crystal layer is disposed between the first substrate and the second substrate; a pixel electrode, disposed between the second substrate and the liquid crystal layer, and used to drive the liquid crystal layer; The pixel electrode comprises a transmissive electrode located in the transmissive region and a reflective electrode located in the reflective region; It is characterized by further comprising: A color resist layer, disposed between the first substrate and the liquid crystal layer and located in the reflective region, for filtering incident light into colored light; A first quantum rod liquid crystal hybrid layer and a second quantum rod liquid crystal hybrid layer are arranged between the first substrate and the liquid crystal layer, and are respectively located in the transmission area and the reflection area; the first quantum rod liquid crystal hybrid layer and the second quantum rod liquid crystal hybrid layer both include first color mixing quantum rods and first liquid crystal molecules, and the first color mixing quantum rods are arranged along a first preset direction to convert circularly polarized light into linearly polarized light or convert linearly polarized light into circularly polarized light; A third quantum rod liquid crystal mixed layer is disposed between the transmission electrode and the liquid crystal layer and is located in the transmission area. The third quantum rod liquid crystal mixed layer includes monochrome quantum rods and second liquid crystal molecules. The monochrome quantum rods are arranged along a second preset direction to absorb blue backlight and stimulate emission of colored polarized light. The display panel further includes: a first polarizing layer and a second polarizing layer, wherein the first polarizing layer is arranged on a side of the first substrate away from the liquid crystal layer, and the second polarizing layer is arranged on a side of the second substrate away from the liquid crystal layer; wherein the light transmission axis of the second polarizing layer is perpendicular to the light transmission axis of the first polarizing layer; the angle between the second preset direction and the light transmission axis of the second polarizing layer is 45°, so that the angle between the light transmission axis of the third quantum rod liquid crystal hybrid layer and the light transmission axis of the second polarizing layer is 45°; the angle between the first preset direction and the light transmission axis of the first polarizing layer is 45°, so that the angle between the light transmission axis of the first quantum rod liquid crystal hybrid layer and the light transmission axis of the first polarizing layer and the angle between the light transmission axis of the second quantum rod liquid crystal hybrid layer and the light transmission axis of the first polarizing layer are both 45°; or, A first polarizing layer and a fourth quantum rod liquid crystal mixing layer; the first polarizing layer is arranged on a side of the first substrate away from the liquid crystal layer; the fourth quantum rod liquid crystal mixing layer is arranged between the third quantum rod liquid crystal mixing layer and the liquid crystal layer, and is located in the transmission area, the fourth quantum rod liquid crystal mixing layer includes a second color mixing quantum rod and a third liquid crystal molecule, the second color mixing quantum rod is arranged along a third preset direction to convert linear polarized light into circular polarized light; no polarizing layer is arranged on a side of the second substrate away from the liquid crystal layer; wherein the second preset direction is perpendicular to the light transmission axis of the first polarizing layer, so that the first The transmittance axis of the three-quantum rod liquid crystal mixing layer is perpendicular to the transmittance axis of the first polarizing layer; the angle between the third preset direction and the second preset direction is 45°, so that the angle between the transmittance axis of the fourth quantum rod liquid crystal mixing layer and the transmittance axis of the third quantum rod liquid crystal mixing layer is 45°; the angle between the first preset direction and the transmittance axis of the first polarizing layer is 45°, so that the angle between the transmittance axis of the first quantum rod liquid crystal mixing layer and the transmittance axis of the first polarizing layer and the angle between the transmittance axis of the second quantum rod liquid crystal mixing layer and the transmittance axis of the first polarizing layer are both 45°.

2. The display panel according to claim 1, characterized in that: The display panel further includes a first alignment layer and a second alignment layer, wherein the first alignment layer is disposed between the liquid crystal layer and the first substrate, and the second alignment layer is disposed between the liquid crystal layer and the second substrate.

3. The display panel according to claim 1, characterized in that: The first quantum rod liquid crystal mixed layer and the second quantum rod liquid crystal mixed layer are arranged between the liquid crystal layer and the first substrate and are in contact with the liquid crystal layer, and the arrangement direction of the first liquid crystal molecules is perpendicular to the first preset direction, which is used to align the liquid crystal molecules in the liquid crystal layer; the display panel also includes a second alignment layer, which is arranged between the liquid crystal layer and the second substrate.

4. The display panel according to claim 3, characterized in that: The second alignment layer is located in the reflective area and is used to align the liquid crystal molecules in the liquid crystal layer located in the reflective area; The third quantum rod liquid crystal mixed layer is disposed between the liquid crystal layer and the transmission electrode and in contact with the liquid crystal layer, and the arrangement direction of the second liquid crystal molecules is perpendicular to the second preset direction, and is used to align the liquid crystal molecules in the liquid crystal layer located in the transmission area; or, The display panel also includes a fourth quantum rod liquid crystal mixing layer, which is arranged between the third quantum rod liquid crystal mixing layer and the liquid crystal layer, located in the transmission area, and in contact with the liquid crystal layer; the fourth quantum rod liquid crystal mixing layer includes second color mixing quantum rods and third liquid crystal molecules, the second color mixing quantum rods are arranged along a third preset direction, and the arrangement direction of the third liquid crystal molecules is perpendicular to the third preset direction, which is used to align the liquid crystal molecules in the liquid crystal layer located in the transmission area.

5. The display panel according to claim 1, characterized in that: The display panel further includes a scattering layer, which is disposed between the first substrate and the liquid crystal layer and located in the transmission area.

6. The display panel according to claim 5, characterized in that: The first quantum rod liquid crystal mixed layer is arranged between the first substrate and the liquid crystal layer, and the scattering layer is arranged between the first quantum rod liquid crystal mixed layer and the liquid crystal layer; the color resistance layer is arranged between the first substrate and the liquid crystal layer, and the second quantum rod liquid crystal mixed layer is arranged between the color resistance layer and the liquid crystal layer.

7. A display device, characterized in that: include: A backlight module, used for providing blue backlight; A display panel is arranged on one side of the light emitting surface of the backlight module, and the display panel is the display panel according to any one of claims 1 to 6.

Citation Information

Patent Citations

  • Liquid crystal display device and making method thereof

    CN105301828A

  • Liquid crystal display device

    CN105452945A

  • Quantum rod liquid crystal box and preparation method for photoelectric device thereof

    CN106444164A

  • Display device, display panel and manufacturing method thereof

    CN108957828A

  • Display unit, near-to-eye display optical module and near-to-eye display system

    CN111258062A