A display device

Abstract

The present application provides a display device, which includes: a display component and a dimming component, wherein the display component or the dimming component includes a first liquid crystal panel, wherein the first liquid crystal panel includes a first polarizer, a second polarizer, and a first liquid crystal molecule located between the first polarizer and the second polarizer, wherein the polarization directions of the first polarizer and the second polarizer are perpendicular, and the first liquid crystal molecule is aligned at 45° when not powered. It can be seen that when the display device is not powered, the first liquid crystal molecules in the first liquid crystal panel are aligned at 45°, and the first polarizer and the second polarizer are at the maximum polarization angle, so that the light emitted from one polarizer to the first liquid crystal molecule is sufficient to rotate to the other polarizer through the first liquid crystal molecule, thereby making the light transmittance of the first liquid crystal panel reach its maximum when not powered, so that the power consumption of the display device is low when it is in a high-brightness state.

Description

Technical Field

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

[0002] With the development of display technology, the application of display devices is becoming more and more common, and has gradually become an indispensable part of people's work and life. Existing display devices include liquid crystal display devices and OLED display devices. Among them, liquid crystal display devices have been rapidly developed and widely used due to their high contrast.

[0003] However, the maximum light transmittance of existing liquid crystal display devices needs to be improved, and contrast is also a very important parameter for liquid crystal display devices. Therefore, providing a display device with higher transmittance and higher contrast has become a research hotspot for those skilled in the art. Summary of the invention

[0004] In view of this, in order to solve the above problems, the present application provides a display device, and the solution is as follows:

[0005] A display device comprises: a display component and a dimming component, wherein the dimming component is located on the non-display side of the display component to provide backlight for the display component, and the dimming component comprises a plurality of dimming areas, and the light of different dimming areas can be adjusted independently.

[0006] Among them, the display component or the dimming component includes a first liquid crystal panel, the first liquid crystal panel includes a first polarizer and a second polarizer arranged opposite to each other, and a first liquid crystal molecule located between the first polarizer and the second polarizer, the polarization directions of the first polarizer and the second polarizer are perpendicular, and when no power is applied, the first liquid crystal molecule is aligned at 45°.

[0007] Compared with the prior art, the beneficial effects of the technical solution of this application are:

[0008] The display component or dimming component in the display device provided by the present application includes a first liquid crystal panel, the first liquid crystal panel includes a first polarizer, a second polarizer and a first liquid crystal molecule located between the first polarizer and the second polarizer, wherein the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer, and the first liquid crystal molecule is 45° aligned when not powered. It can be seen that the display device provided by the present application is in a non-powered state, that is, in the initial alignment state of the liquid crystal molecules, the first liquid crystal molecules in the first liquid crystal panel are 45° aligned, and the first polarizer and the second polarizer are at the maximum polarization angle, so that when the display device is working, the light emitted to the first liquid crystal molecule through the lower polarizer is sufficient to rotate to the upper polarizer through the first liquid crystal molecule, thereby making the light transmittance of the first liquid crystal panel reach its maximum when not powered, so that the power consumption of the display device when in a high-brightness state is low, which can greatly reduce the power consumption of the display device in a high-brightness state. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0010] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0011] Figure 1 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0012] Figure 2 A schematic structural diagram of a first liquid crystal panel in a display panel provided in an embodiment of the present application;

[0013] Figure 3 is a schematic diagram of the relationship between the polarization directions of the first polarizer and the second polarizer and the alignment direction of the first liquid crystal molecules;

[0014] Figure 4 A schematic structural diagram of a first liquid crystal panel in a display panel provided in an embodiment of the present application;

[0015] Figure 5 A schematic structural diagram of a first liquid crystal panel in another display panel provided in an embodiment of the present application;

[0016] Figure 6 A schematic diagram of the structure of a light source in a display panel provided in an embodiment of the present application;

[0017] Figure 7 A schematic diagram of the correspondence between a dimming area and a pixel area in a display panel provided in an embodiment of the present application;

[0018] Figure 8 A schematic diagram of a light source structure in another display panel provided in an embodiment of the present application;

[0019] Fig. 9 A schematic diagram of correspondence between dimming areas and pixel areas in another display panel provided in an embodiment of the present application;

[0020] Fig.10 A schematic structural diagram of a first liquid crystal panel in another display panel provided in an embodiment of the present application;

[0021] Fig.11 A schematic structural diagram of a dimming component in a display panel provided in an embodiment of the present application including a second liquid crystal panel;

[0022] Fig.12 A structural schematic diagram of another display panel provided in an embodiment of the present application in which a dimming component includes a second liquid crystal panel;

[0023] Fig.13 A schematic diagram of a structure in which a display component in a display panel provided in an embodiment of the present application includes a second liquid crystal panel;

[0024] Fig.14 A schematic structural diagram of another display panel provided in an embodiment of the present application when the display component includes a second liquid crystal panel;

[0025] Fig.15 A schematic structural diagram of a display component in another display panel provided in an embodiment of the present application including a second liquid crystal panel;

[0026] Fig.16 A schematic structural diagram of a display component in another display panel provided in an embodiment of the present application including a second liquid crystal panel;

[0027] Fig.17 A structural schematic diagram of a display component in another display panel provided in an embodiment of the present application includes a second liquid crystal panel;

[0028] Fig.18A schematic structural diagram of a first liquid crystal panel in another display panel provided in an embodiment of the present application;

[0029] Fig.19 This is a schematic structural diagram of a second liquid crystal panel in a display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] The existing display device includes a liquid crystal display panel and a backlight module, wherein, when the liquid crystal display panel is not powered on, the orientation direction of the liquid crystal is 0° or 90° to the polarization direction of the polarizer, and the light transmittance is 0. When powered on, the liquid crystal molecules are deflected. When the voltage on the liquid crystal display panel is 5V, the light transmittance of the liquid crystal display panel reaches the maximum, that is, the light transmittance of the liquid crystal display panel can only reach the maximum value that the liquid crystal display panel can reach when the liquid crystal display panel is powered on and the voltage is 5V. That is, when the existing display device is powered on, it is in a high-brightness state, and when it is not powered on, it is in a dark state, and the power consumption in the bright state is relatively high. In addition, the light transmittance of the display device in the high-brightness state is 4.74, which needs to be improved.

[0033] Based on this, reference Figure 1 The present application provides a display device, which includes: a display component 10 and a dimming component 20, wherein the dimming component 20 is located on the non-display side of the display component 10 to provide backlight for the display component 10, and the dimming component 20 includes a plurality of dimming areas 21, and the light emitted from different dimming areas 21 can be adjusted independently.

[0034] Among them, reference Figure 2The display component 10 or the dimming component 20 includes a first liquid crystal panel 30, the first liquid crystal panel 30 includes a first polarizer 31 and a second polarizer 32 arranged opposite to each other, and a first liquid crystal molecule 33 located between the first polarizer 31 and the second polarizer 32, the polarization direction of the first polarizer 31 and the polarization direction of the second polarizer 32 are perpendicular, which are respectively the first direction and the second direction, and are parallel to the first polarizer 31 and the second polarizer 32 and the film layer where the liquid crystal molecule 33 is located, and in the non-powered state, the first liquid crystal molecule 33 is oriented at 45°. It should be noted that in this embodiment, in the non-powered state, the first liquid crystal molecule 33 is oriented at 45°, which can also be said that the first liquid crystal molecule 33 is oriented at 135°.

[0035] Specifically, in the embodiment of the present application, the first liquid crystal panel includes a first polarizer, a second polarizer, and a first liquid crystal molecule located between the first polarizer and the second polarizer, wherein the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer, and the first liquid crystal molecule is aligned at 45° in the non-powered state. It can be seen that in the display device provided by the present application, in the non-powered state, that is, in the initial alignment state of the liquid crystal molecules, the first liquid crystal molecules in the first liquid crystal panel are aligned at 45°, and the first polarizer and the second polarizer are at the maximum polarization angle, so that when the display device is working, the light emitted from the lower polarizer to the first liquid crystal molecule is sufficient to rotate to the upper polarizer through the first liquid crystal molecule, thereby making the light transmittance of the first liquid crystal panel reach its maximum in the non-powered state.

[0036] Since the light transmittance of the first liquid crystal panel can reach its maximum when no power is supplied, the light transmittance of the display device can reach its maximum when no power is supplied, that is, when the voltage is 0, that is, the display device is in a high-brightness state when no power is supplied, so that the power consumption of the display device in the high-brightness state is lower, which can greatly reduce the power consumption of the display device in the high-brightness state.

[0037] Moreover, when no power is applied, the light transmittance of the first liquid crystal panel is 5.37%, that is, the light transmittance of the display device when in a high-brightness state is 5.37. Compared with the aforementioned existing display device, the light transmittance of the display device provided in the present application when in a high-brightness state is relatively larger.

[0038] In addition, the display device also includes a dimming component, and the light in different dimming areas of the dimming component can be adjusted independently, so that the brightness of the light irradiated on the display component can be adjusted by adjusting the light output amount of different dimming areas of the dimming component, thereby improving the contrast of the display component and making the contrast of the display device better.

[0039] From the above, it can be seen that the display device provided in the present application has lower power consumption, higher light transmittance and better contrast when in a high-brightness state.

[0040] It should be noted that the lower polarizer is the polarizer located on the light incident side of the first liquid crystal molecule among the first polarizer and the second polarizer, and the upper polarizer is the polarizer located on the light emitting side of the first liquid crystal molecule among the first polarizer and the second polarizer.

[0041] refer to Figure 3 , Figure 3 Schematic diagram of the relationship between the polarization direction of the first polarizer, the polarization direction of the second polarizer, and the alignment direction of the liquid crystal molecules in the display device, wherein the first direction is the polarization direction of the first polarizer, the second direction is the polarization direction of the second polarizer, and the third direction is the alignment direction of the liquid crystal molecules. Therefore, based on the above embodiment, in one embodiment of the present application, in a non-powered state, the alignment direction of the first liquid crystal molecules 33 forms a first angle with the polarization direction of the first polarizer 31, and the difference between the first angle and 45° is within a preset angle, and the preset angle ranges from 0° to 10°, that is, in a non-powered state, the angle formed by the alignment direction of the first liquid crystal molecules 33 and the polarization direction of the first polarizer 31 is about 45°. It should be noted that it is known that the polarization directions of the first polarizer and the second polarizer are parallel to the film layer where the first liquid crystal molecules are located, and the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer. Therefore, in the unpowered state, the angle between the alignment direction of the first liquid crystal molecules and the polarization direction of the first polarizer is about 45°, and the angle between the alignment direction of the first liquid crystal molecules and the polarization direction of the second polarizer is also about 45°.

[0042] Specifically, in an embodiment of the present application, for example, the first polarizer is located on the light incident side of the first liquid crystal molecule. It is known that in an unpowered state, the angle between the alignment direction of the first liquid crystal molecule and the polarization direction of the first polarizer is about 45°, and the angle between the alignment direction of the first liquid crystal molecule and the polarization direction of the second polarizer is also about 45°, so that the angle between the polarization direction of the first polarizer and the polarization direction of the second polarizer is about 90°. As a result, when the display device is not powered on, the first liquid crystal molecules in the first liquid crystal panel are aligned at 45°, and are at the maximum polarization angle when combined with the first polarizer and the second polarizer, so that the light transmittance of the first liquid crystal panel can reach its maximum, thereby greatly reducing the power consumption of the display device in a high-brightness state.

[0043] Based on the above embodiments, in one embodiment of the present application, reference Figure 4 , the display component 10 includes the first liquid crystal panel 30; the first liquid crystal panel 30 also includes: a first substrate 34 and a second substrate 35 located between the first polarizer 31 and the second polarizer 32, and the first liquid crystal molecules 33 are located between the first substrate 34 and the second substrate 35. That is, in the embodiment of the present application, the display component includes the first liquid crystal panel, so that in the non-powered state, the display component has a large light transmittance, which can greatly reduce the power consumption of the display device in the high-brightness state.

[0044] It should be noted that, since the angle between the orientation direction of the first liquid crystal molecule and the polarization direction of the first polarizer and the polarization direction of the second polarizer is about 45° in the non-powered state, that is, the initial orientation direction of the first liquid crystal molecule and the polarization direction of the first polarizer and the polarization direction of the second polarizer have a certain angle, in this case, the light transmittance of the display component in the dark state will be increased, affecting the contrast of the display device in the dark state. However, it can be seen from the above that the display device provided by the present application also includes a dimming component, the dimming component includes a plurality of dimming areas, and the outgoing light of different dimming areas in the plurality of dimming areas can be adjusted independently. Therefore, when the display device is in the dark state, the brightness of the light irradiated to different areas of the first liquid crystal panel in the display component can be adjusted by adjusting the outgoing amount of light of different dimming areas in the dimming component, so as to adjust the light transmittance of the area corresponding to the different dimming areas of the display component, and then when the display device is in the dark state, the contrast of the display device in the dark state is improved, so that the power consumption of the display device in the high-brightness state is low, and the contrast of the dark state is also good.

[0045] Based on the above embodiments, in one embodiment of the present application, reference Figure 5 The display component also includes a color resist layer 50, which is located between the first liquid crystal molecules 33 and the second substrate 32. The color resist layer 50 has a plurality of color blocks in red, green and blue (RGB), so that the display module can display colors.

[0046] Based on the above embodiments, in one embodiment of the present application, reference Figure 6 The dimming component 20 includes a plurality of LEDs arranged in an array, that is, the light source of the display device is an LED arranged in a column, that is, the display device adopts a direct-type backlight source, so that the structure of the light source of the display device is simpler and the thickness is thinner, thereby simplifying the structure of the display device and reducing the thickness of the display device. In addition, the display device adopts a direct-type backlight source, which has a plurality of LEDs arranged in an array, so that the brightness of the backlight source is higher.

[0047] Based on the above embodiments, in one embodiment of the present application, the LED is a miniLED, but the embodiment of the present application does not limit this and it depends on the specific circumstances.

[0048] Based on the above embodiments, in one embodiment of the present application, reference Figure 7 , the first liquid crystal panel 30 includes a plurality of pixel areas 36, the dimming component 20 includes a plurality of dimming areas 21, one dimming area 21 includes at least one miniLED, and one dimming area 21 corresponds to N pixel areas 36, wherein N>Q, Q is an integer greater than 1. It should be noted that in the embodiment of the present application, the portion of the color resist layer located in a pixel area includes a color block of one color, and in other embodiments of the present application, the portion of the color resist layer located in a pixel area may also include color blocks of three colors of RGB, depending on the specific circumstances.

[0049] Specifically, in the embodiment of the present application, the first liquid crystal panel includes a plurality of pixel areas, and one dimming area corresponds to N pixel areas, so that when the display device is in a dark state, the light transmittance of different pixel areas of the first liquid crystal panel can be adjusted by adjusting the light emission amount of different dimming areas. Specifically, by adjusting the luminous brightness of the miniLED in different dimming areas, the light transmittance of the corresponding different pixel areas of the first liquid crystal panel is adjusted, and then the contrast of the display component in the dark state is adjusted, which reduces to a certain extent the effect of the first angle between the alignment direction of the first liquid crystal molecules and the polarization direction of the first polarizer on the contrast of the display device in the dark state.

[0050] On the basis that the display component includes a first liquid crystal panel, in another embodiment of the present application, reference Figure 8 , the dimming component 20 includes a backlight 22 and a second liquid crystal panel 40 located on the light-emitting side of the backlight 22. The backlight 22 includes a light guide plate 221 and a light source 222 located on the side of the light guide plate 221. The second liquid crystal panel 40 modulates the light output of the backlight 22.

[0051] Specifically, in the embodiment of the present application, the dimming component includes a backlight, and the backlight includes a light guide plate and a light source located on the side of the light guide plate. That is to say, the dimming component adopts a side-entry type backlight. Compared with the direct-lit backlight, the side-entry type backlight only needs to set a light source on the side of the light guide plate, unlike the direct-lit backlight that requires multiple arrays of LEDs as light sources. Therefore, the power consumption of the backlight in this embodiment is lower, and thus the power consumption of the dimming component is lower, which helps to reduce the power consumption of the display device.

[0052] Moreover, in the embodiment of the present application, the dimming component further includes a second liquid crystal panel, which modulates the light emitted by the backlight to adjust the light output of the light source when the display device is in the dark state, and further adjusts the brightness of the light emitted by the light source after passing through the light guide plate and irradiating the second liquid crystal panel, so as to adjust the light transmittance of the first liquid crystal panel and reduce the influence of the initial alignment of the first liquid crystal molecules being 45° on the contrast of the display device when it is in the dark state.

[0053] Based on the above embodiments, in an embodiment of the present application, referring to Fig. 9 , the first liquid crystal panel 30 includes a plurality of pixel regions 36, and the dimming component 20 includes a plurality of dimming regions 21. Among them, one dimming region 21 corresponds to M pixel regions, M < Q, and Q is an integer greater than 1. Therefore, compared with the dimming component with a direct-lit backlight, the area of the dimming region 20 of the dimming component 20 in this embodiment is smaller, and the adjustment accuracy of the dimming component is relatively higher, which is more helpful for reducing the influence on the contrast of the display device in the dark state. It should be noted that in the embodiment of the present application, the same as the case when the dimming component adopts a direct-lit backlight, the part of the color resistance layer located in a pixel region may include a color block of one color or color blocks of RGB three colors, depending on the specific situation.

[0054] It should be noted that the dimming component in this embodiment includes a second liquid crystal panel. By controlling the rotation direction of the liquid crystal molecules in different dimming regions of the second liquid crystal panel, the purpose of modulating the light irradiating the first display panel can be achieved, and the dimming area is not limited by the size of the light source in the backlight. Therefore, the area of the dimming region can be made very small.

[0055] Based on the above embodiments, in one embodiment of the present application, reference Fig.10 The second liquid crystal panel 40 includes second liquid crystal molecules 41 , and the alignment direction of the second liquid crystal molecules 41 is different from the alignment direction of the first liquid crystal molecules 33 .

[0056] Based on the above embodiments, in one embodiment of the present application, reference Fig.11 The second liquid crystal panel 40 includes: a third substrate 42 and a fourth substrate 43 arranged opposite to each other, and also includes a third polarizer 44 located on the side of the third substrate 42 away from the fourth substrate 43 and a fourth polarizer 45 located on the side of the fourth substrate 43 away from the third substrate 42. The second liquid crystal molecules 41 are located between the third substrate 42 and the fourth substrate 43, the fourth polarizer 45 and the first polarizer 31 are located between the second polarizer 32 and the third polarizer 44, and the polarization direction of the fourth polarizer 45 is the same as the polarization direction of the first polarizer 31, and the polarization direction of the second polarizer 32 is the same as the polarization direction of the third polarizer 44.

[0057] Specifically, in the present embodiment, the second liquid crystal panel includes second liquid crystal molecules, so that the brightness of the outgoing light in different dimming areas in the dimming component can be adjusted by adjusting the rotation direction of the second liquid crystal molecules in different dimming areas, and the area of ​​the dimming area in the dimming component is not affected by the volume of the light source, so that the area of ​​the dimming area of ​​the dimming component can be made very small, so that the dimming component has higher accuracy during dimming, which is more conducive to reducing the impact on the contrast of the display device in the dark state.

[0058] On the basis that the dimming component includes a second liquid crystal panel, and the second liquid crystal panel includes second liquid crystal molecules, in another embodiment of the present application, reference is made to Fig.12, the second liquid crystal panel 40 includes: a third substrate 42 and a fourth substrate 43 arranged opposite to each other, and also includes a third polarizer 44 located on the side of the third substrate 42 away from the fourth substrate 43, the second liquid crystal molecule 41 is located between the third substrate 42 and the fourth substrate 43, the first polarizer 31 is located between the second polarizer 32 and the third polarizer 44, and the polarization direction of the second polarizer 32 is the same as the polarization direction of the third polarizer 44. It can be seen that the second liquid crystal panel in the display device provided in this embodiment has two substrates and one polarizer, while the display device provided in the above embodiment includes two substrates and two polarizers. Compared with the above embodiment, the display device provided in this embodiment has one less polarizer. And the display device provided in this embodiment can also adjust the light brightness of the dimming area by adjusting the rotation direction of the second liquid crystal panel to achieve the purpose of adjusting the light transmittance of the first liquid crystal panel. Therefore, compared with the above embodiment, the cost of the display device in this embodiment is relatively low.

[0059] Based on the above two embodiments, in one embodiment of the present application, the angle between the alignment direction of the second liquid crystal molecules and the polarization direction of the third polarizer forms a second angle, the second liquid crystal molecules are aligned at 0°, and the difference between the second angle and 0° is in the range of 0° to 10°; or, the second liquid crystal molecules are aligned at 90°, and the difference between the second angle and 90° is in the range of 0° to 10°. That is to say, the structure of the display device provided in the embodiment of the present application includes two situations. The first one is that for the display component, when the power is off, the orientation direction of the first liquid crystal molecules in the first liquid crystal panel is 45°, and the angle between the orientation direction of the first liquid crystal molecules and the polarization direction of the first polarizer is about 45°; for the dimming component, the orientation direction of the second liquid crystal molecules in the second liquid crystal panel is 0°, and the angle between the orientation direction of the second liquid crystal molecules and the polarization direction of the third polarizer is about 0°; the second one is that for the display component, when the power is off, the orientation direction of the first liquid crystal molecules in the first liquid crystal panel is 45°, and the angle between the orientation direction of the first liquid crystal molecules and the polarization direction of the first polarizer is about 45°, and the orientation direction of the second liquid crystal molecules in the second liquid crystal panel is 90°, and the angle between the orientation direction of the second liquid crystal molecules and the polarization direction of the third polarizer is about 90°. In summary, the initial alignment of the liquid crystal molecules of the display component in the display device provided by the embodiment of the present application is 45°, and the alignment of the liquid crystal molecules in the dimming component is 0° or 90°.

[0060] The above embodiment describes that the display component in the display device includes a first liquid crystal panel. The display device provided in the present application also has a dimming component including a first liquid crystal panel. Therefore, in another embodiment of the present application, reference Fig.13 The dimming component 20 includes the first liquid crystal panel 30, the display component 10 includes the second liquid crystal panel 40, the second liquid crystal panel 40 includes second liquid crystal molecules 41, and the alignment direction of the first liquid crystal molecules 33 in the first liquid crystal panel 30 is different from the alignment direction of the second liquid crystal molecules 41 in the second liquid crystal panel 40.

[0061] Specifically, in the present embodiment, it is known that the alignment direction of the first liquid crystal molecules in the first liquid crystal panel is 45°, and the polarization directions of the first polarizer and the second polarizer are perpendicular, which makes it possible for the light transmittance of the first liquid crystal panel to reach its maximum value when no power is supplied, so that the light transmittance of the dimming component is larger when no power is supplied, thereby making the power consumption of the display device lower when in the high-brightness state, thereby being able to greatly reduce the power consumption of the display device in the high-brightness state.

[0062] Based on the above embodiments, in one embodiment of the present application, reference Fig.14 The dimming component 20 also includes a backlight source 22, and the backlight source 22 is located on the side of the first liquid crystal panel 30 away from the display component 10, wherein the backlight source 22 includes a light guide plate 221 and a light source 222 located on the side of the light guide plate 221, and the first liquid crystal panel 30 modulates the light emitted by the backlight source 22.

[0063] Specifically, by adjusting the rotation direction of the first liquid crystal molecules in different dimming areas of the first liquid crystal panel, the brightness of the light irradiated on the display component through the first liquid crystal panel is adjusted, so that when the display device is in a dark state, the light transmittance of different pixel areas of the display component can be adjusted to ensure the contrast of the display device in a dark state. It should be noted that the light transmittance of the first liquid crystal molecules is maximized when they are aligned at 45°, so that the display device is in a high-brightness state. When the display device is in a dark state, it is not necessary to ensure that the light transmittance of the first liquid crystal panel is maximized, that is, it is not necessary to maintain the alignment of the first liquid crystal molecules at 45°. Therefore, in the dark state, the alignment direction of the first liquid crystal molecules can be adjusted to achieve the purpose of ensuring the contrast of the display device in a dark state.

[0064] On the basis that the dimming component includes a first liquid crystal panel, in another embodiment of the present application, reference Fig.15 The dimming component 20 includes a plurality of LEDs arranged in an array, that is, the dimming component 20 adopts a direct-type backlight source. Optionally, the plurality of LEDs arranged in an array are miniLEDs.

[0065] Based on the above embodiments, in one embodiment of the present application, reference Fig.16 The first liquid crystal panel 30 also includes: a first substrate 34 and a second substrate 35 located between the first polarizer 31 and the second polarizer 32, and the first liquid crystal molecule 33 is located between the first substrate 34 and the second substrate 35; the second liquid crystal panel 40 includes: a third substrate 42 and a fourth substrate 43 arranged opposite to each other, and also includes a third polarizer 44 located on the side of the third substrate 42 away from the fourth substrate 43 and a fourth polarizer 45 located on the side of the fourth substrate 43 away from the third substrate 42, the second liquid crystal molecule 41 is located between the third substrate 42 and the fourth substrate 43, the third polarizer 44 and the second polarizer 32 are located between the fourth polarizer 45 and the first polarizer 31, and the polarization direction of the fourth polarizer 45 is the same as the polarization direction of the first polarizer 31, and the polarization direction of the second polarizer 32 is the same as the polarization direction of the third polarizer 44.

[0066] In another embodiment of the present application, reference Fig.17 , the first liquid crystal panel further includes: a first substrate 34 and a second substrate 35 located between the first polarizer 31 and the second polarizer 32, and the first liquid crystal molecule 33 is located between the first substrate 34 and the second substrate 35; the second liquid crystal panel 40 includes: a third substrate 42 and a fourth substrate 43 arranged opposite to each other, and further includes a fourth polarizer 45 located on the side of the fourth substrate 43 away from the third substrate 42, the second liquid crystal molecule 41 is located between the third substrate 42 and the fourth substrate 43, the first polarizer 31 is located between the second polarizer 32 and the fourth polarizer 44, and the polarization direction of the first polarizer 31 is the same as the polarization direction of the fourth polarizer 45. Compared with the above embodiment, the display device provided in this embodiment has one less polarizer, so compared with the above embodiment, the cost of the display device in this embodiment is relatively low.

[0067] On the basis of the above two embodiments, in one embodiment of the present application, the angle between the orientation direction of the second liquid crystal molecules and the polarization direction of the third polarizer forms a second angle, the second liquid crystal molecules are oriented at 0°, and the difference between the second angle and 0° ranges from 0° to 10°; or, the second liquid crystal molecules are oriented at 90°, and the difference between the second angle and 90° ranges from 0° to 10°. That is to say, the orientation of the liquid crystal molecules of the display component in the display device provided in the embodiment of the present application is 0° or 90°, and the orientation of the liquid crystal molecules in the dimming component is 45°, which can make the manufacturing process of the display device compatible with the manufacturing process of the existing display device, thereby reducing the manufacturing cost of the display device.

[0068] Based on the above embodiments, in one embodiment of the present application, Fig.16 and 17 As shown, the second liquid crystal panel further includes a color resist layer 50, which is located between the second liquid crystal molecules and the fourth substrate 43. The color resist layer 50 has a plurality of color blocks in red, green and blue (RGB), so that the display module can display colors.

[0069] The above embodiments introduce a situation where the alignment of the liquid crystal group in the display component is different from the alignment of the liquid crystal molecules in the dimming component, but the present application does not limit this. In other embodiments of the present application, the alignment of the liquid crystal molecules in the display component may also be the same as the alignment of the liquid crystal molecules in the dimming component. Specifically, the display component includes a first liquid crystal panel, the dimming component includes a second liquid crystal panel, the first liquid crystal panel includes a first liquid crystal molecule, the second liquid crystal panel includes a second liquid crystal molecule, and the alignment direction of the first liquid crystal molecule in the first liquid crystal panel is the same as the alignment direction of the second liquid crystal molecule in the second liquid crystal panel.

[0070] Based on any of the above embodiments, in one embodiment of the present application, reference Fig.18 , the first liquid crystal panel 30 includes a pixel electrode 37 located between the first liquid crystal molecule 33 and the first polarizer 31, the electrode extension direction x of the pixel electrode 37 is parallel to the plane where the first polarizer 31 is located, and the angle between the electrode extension direction x of the pixel electrode 37 and the alignment y of the first liquid crystal molecule 33 is a third angle A1, and the value range of the third angle A1 is 3° to 20° or 70° to 87°. Specifically, when the first liquid crystal molecule is a positive liquid crystal, the angle between the electrode extension direction of the pixel electrode and the alignment of the first liquid crystal molecule 33 is 3° to 20°, and when the first liquid crystal molecule is a negative liquid crystal, the angle between the electrode extension direction of the pixel electrode and the alignment of the first liquid crystal molecule is 70° to 87°, so that the pixel electrode can transmit signals to the first liquid crystal molecule without affecting the operation of the first liquid crystal molecule.

[0071] Based on the above embodiments, in one embodiment of the present application, reference Fig.19, the second liquid crystal panel 40 includes a pixel electrode 45 located between the second liquid crystal molecule 41 and the third polarizer 44, the electrode extension direction of the pixel electrode 45 is parallel to the plane where the third polarizer 44 is located, and the angle between the electrode extension direction m and the alignment n of the second liquid crystal molecule 41 is a fourth angle A2, and the value range of the fourth angle A2 is 3° to 20° or 70° to 87°. Specifically, when the second liquid crystal molecule is a positive liquid crystal, the angle between the electrode extension direction of the pixel electrode and the alignment of the second liquid crystal molecule is 3° to 20°, and when the second liquid crystal molecule is a negative liquid crystal, the angle between the electrode extension direction of the pixel electrode and the alignment of the second liquid crystal molecule is 70° to 87°, so that the pixel electrode can transmit signals to the second liquid crystal molecule without affecting the operation of the second liquid crystal molecule.

[0072] In summary, an embodiment of the present application provides a display device, which includes: a display component and a dimming component located on the non-display side of the display component, the dimming component includes multiple dimming areas, and the light emitted from different dimming areas can be adjusted independently; wherein, the display component or the dimming component includes a first liquid crystal panel, the first liquid crystal panel includes a first polarizer and a second polarizer arranged relatively to each other, and a first liquid crystal molecule between the first polarizer and the second polarizer, the polarization directions of the first polarizer and the second polarizer are perpendicular, and in an unpowered state, the first liquid crystal molecules are oriented at 45°, so that the first liquid crystal molecules of the first liquid crystal panel are oriented at 45°, and are at the maximum polarization angle when combined with the first polarizer and the second polarizer, so that in an unpowered state, the light transmittance of the first liquid crystal panel can reach its maximum possible value, which can greatly reduce the power consumption of the display device in a high-brightness state.

[0073] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0074] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0075] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0076] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display device, characterized in that: Comprising: A display component and a dimming component, the dimming component being located on the non-display side of the display component to provide backlight for the display component, and the dimming component including a plurality of dimming regions, and the light emitted from different dimming regions can be independently adjusted; Wherein, the display component or the dimming component includes a first liquid crystal panel, the first liquid crystal panel includes a first polarizer and a second polarizer arranged oppositely, and first liquid crystal molecules located between the first polarizer and the second polarizer, the polarization directions of the first polarizer and the second polarizer are perpendicular, and in the non-powered state, the alignment direction of the first liquid crystal molecules forms a first angle with the polarization direction of the first polarizer, and the difference between the first angle and 45° is within a preset angle, and the value range of the preset angle is 0° to 10°.

2. The display device according to claim 1, characterized in that The display component includes the first liquid crystal panel; The first liquid crystal panel further includes: a first substrate and a second substrate located between the first polarizer and the second polarizer, and the first liquid crystal molecules are located between the first substrate and the second substrate.

3. The display device according to claim 2, characterized in that: The dimming component includes a plurality of LEDs arranged in an array.

4. The display device according to claim 3, characterized in that: The LED is a mini LED.

5. The display device according to claim 3, characterized in that: The first liquid crystal panel includes a plurality of pixel regions, the dimming component includes a plurality of dimming regions, and one dimming region corresponds to N pixel regions, N>Q, and Q is an integer greater than 1.

6. The display device according to claim 2, characterized in that: The dimming component includes a backlight source and a second liquid crystal panel located on the light-emitting side of the backlight source, the backlight source includes a light guide plate and a light source located on the side of the light guide plate, and the second liquid crystal panel modulates the light emitted from the backlight source.

7. The display device according to claim 6, characterized in that: The first liquid crystal panel includes a plurality of pixel regions, the dimming component includes a plurality of dimming regions, and one dimming region corresponds to M pixel regions, M<Q, and Q is an integer greater than 1.

8. The display device according to claim 6, characterized in that: The second liquid crystal panel includes second liquid crystal molecules, and the alignment direction of the second liquid crystal molecules in the second liquid crystal panel is different from the alignment direction of the first liquid crystal molecules in the first liquid crystal panel.

9. The display device according to claim 8, characterized in that: The second liquid crystal panel includes: a third substrate and a fourth substrate arranged oppositely, a third polarizer located on the side of the third substrate away from the fourth substrate, and a fourth polarizer located on the side of the fourth substrate away from the third substrate, the second liquid crystal molecules are located between the third substrate and the fourth substrate, the fourth polarizer and the first polarizer are located between the second polarizer and the third polarizer, the polarization directions of the fourth polarizer and the first polarizer are the same, and the polarization directions of the second polarizer and the third polarizer are the same.

10. The display device according to claim 8, characterized in that The second liquid crystal panel includes: a third substrate and a fourth substrate arranged oppositely, a third polarizer located on the side of the third substrate away from the fourth substrate, the second liquid crystal molecules are located between the third substrate and the fourth substrate, the first polarizer is located between the second polarizer and the third polarizer, and the polarization direction of the second polarizer is the same as the polarization direction of the third polarizer.

11. The display device according to claim 9 or 10, characterized in that: The angle between the alignment direction of the second liquid crystal molecules and the polarization direction of the third polarizer forms a second angle, the second liquid crystal molecules are aligned at 0°, and the difference between the second angle and 0° is in the range of 0° to 10°; or, the second liquid crystal molecules are aligned at 90°, and the difference between the second angle and 90° is in the range of 0° to 10°.

12. The display device according to claim 1, characterized in that: The dimming component includes the first liquid crystal panel, the display component includes a second liquid crystal panel, the second liquid crystal panel includes second liquid crystal molecules, and the first liquid crystal molecules in the first liquid crystal panel and the second liquid crystal molecules in the second liquid crystal panel have different alignment directions.

13. The display device according to claim 12, characterized in that: The dimming component also includes a backlight source, which is located on a side of the first liquid crystal panel away from the display component and includes a light guide plate and a light source located on the side of the light guide plate. The first liquid crystal panel modulates the light emitted by the backlight source.

14. The display device according to claim 13, characterized in that: The first liquid crystal panel further includes: a first substrate and a second substrate located between the first polarizer and the second polarizer, and the first liquid crystal molecules are located between the first substrate and the second substrate; The second liquid crystal panel comprises a third substrate and a fourth substrate arranged opposite to each other, a third polarizer located on a side of the third substrate away from the fourth substrate, and a fourth polarizer located on a side of the fourth substrate away from the third substrate, and an angle between an alignment direction of the second liquid crystal molecules and a polarization direction of the third polarizer is a second angle, the second liquid crystal molecules are aligned at 0°, and a value range of a difference between the second angle and 0° is 0° to 10°; or, the second liquid crystal molecules are aligned at 90°, and a value range of a difference between the second angle and 90° is 0° to 10°; The second polarizer and the third polarizer are located between the first polarizer and the fourth polarizer, the polarization direction of the first polarizer is the same as the polarization direction of the fourth polarizer, and the polarization direction of the second polarizer is the same as the polarization direction of the third polarizer.

15. The display device according to claim 13, characterized in that: The first liquid crystal panel further includes: a first substrate and a second substrate located between the first polarizer and the second polarizer, and the first liquid crystal molecules are located between the first substrate and the second substrate; The second liquid crystal panel comprises: a third substrate and a fourth substrate arranged opposite to each other, a fourth polarizer located on a side of the fourth substrate away from the third substrate; a second color resist layer and a second liquid crystal molecule located between the third substrate and the fourth substrate, and an angle between an alignment direction of the second liquid crystal molecule and a polarization direction of the second polarizer is a second angle, the second liquid crystal molecule is aligned at 0°, and a difference between the second angle and 0° is in a range of 0° to 10°; or, the second liquid crystal molecule is aligned at 90°, and a difference between the second angle and 90° is in a range of 0° to 10°; The first polarizer is located between the second polarizer and the fourth polarizer, and the polarization direction of the first polarizer is the same as the polarization direction of the fourth polarizer.

16. The display device according to claim 1, characterized in that: The display component includes the first liquid crystal panel, the dimming component includes the second liquid crystal panel, the first liquid crystal panel includes first liquid crystal molecules, the second liquid crystal panel includes second liquid crystal molecules, and the alignment direction of the first liquid crystal molecules in the first liquid crystal panel is the same as the alignment direction of the second liquid crystal molecules in the second liquid crystal panel.

17. The display device according to claim 1, characterized in that: The first liquid crystal panel also includes a pixel electrode located between the first liquid crystal molecules and the first polarizer, and the angle between the electrode extension direction of the pixel electrode and the alignment of the first liquid crystal molecules is a third angle, and the value range of the third angle is 3° to 20° or 70° to 87°.

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