Display device

Abstract

Embodiments of the present application provide a display device; the display device is configured by setting a light control layer and a light adjusting layer, so that an array of light shielding walls in the light control layer is arranged to form a first light transmission area and a second light transmission area, a first quantum dot layer and a second quantum dot layer are arranged in the first light transmission area and the second light transmission area respectively, the first quantum dot layer is located below a transparent layer, the second quantum dot layer is located above the transparent layer, and parts of the light adjusting layer corresponding to the first light transmission area and the second light transmission area are independently light-transmissive; when the display device is configured in a first state, light emitted by the light adjusting layer is emitted to the first quantum dot layer; when the display device is configured in a second state, light emitted by the light adjusting layer is emitted to at least the second quantum dot layer, so that the switching between a privacy mode and a sharing mode can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0002] With the development of display technology, users pay more and more attention to the protection of personal information, therefore, the anti-peeping display device is more and more concerned. The anti-peeping display device refers to the fact that the onlooker cannot see the user's viewing picture while the user's use is not affected. The existing anti-peeping display device is realized by pasting an anti-peeping film on the display device, but this anti-peeping mode cannot realize the switching of display mode. When it is necessary to switch from the anti-peeping mode to the sharing mode, the anti-peeping film can only be removed, and the two modes cannot be converted in real time, which cannot meet the needs of users in different scenarios.

[0003] Therefore, the existing anti-peeping display device has the technical problem of being unable to convert the display mode by using the anti-peeping film to realize the anti-peeping effect. SUMMARY

[0004] The embodiments of the present application provide a display device to solve the technical problem that the existing anti-peeping display device cannot convert the display mode by using the anti-peeping film to realize the anti-peeping effect.

[0005] The embodiments of the present application provide a display device, which comprises:

[0006] a liquid crystal display panel;

[0007] a light control layer arranged on a light-incident side of the liquid crystal display panel;

[0008] a light adjusting layer arranged on a side of the light control layer away from the liquid crystal display panel;

[0009] The light control layer comprises a first quantum dot layer, a transparent layer, a light-shielding barrier wall and a second quantum dot layer. The light-shielding barrier wall is arranged in an array to form a plurality of light transmission zones between adjacent light-shielding barrier walls. The transparent layer is arranged in the light transmission zones. The light transmission zones comprise a first light transmission zone and a second light transmission zone. The first quantum dot layer is arranged in the first light transmission zone, and the first quantum dot layer is arranged on a side of the transparent layer away from the liquid crystal display panel. The second quantum dot layer is arranged in the second light transmission zone, and the second quantum dot layer is arranged on a side of the transparent layer close to the liquid crystal display panel. The light adjusting layer is independently transparent to the first light transmission zone and the second light transmission zone. When the display device is configured in a first state, the light emitted by the light adjusting layer is emitted to the first quantum dot layer. When the display device is configured in a second state, the light emitted by the light adjusting layer is emitted to at least the second quantum dot layer.

[0010] In some embodiments, the light control layer further comprises a first encapsulation layer and a second encapsulation layer, the first encapsulation layer is disposed on a side of the light blocking dam far away from the liquid crystal display panel, the second encapsulation layer is disposed on a side of the light blocking dam close to the liquid crystal display panel, the first quantum dot layer and the side of the light blocking dam are in contact with the first encapsulation layer, and the second quantum dot layer and the other side of the light blocking dam are in contact with the second encapsulation layer.

[0011] In some embodiments, the first quantum dot layer comprises a plurality of first quantum dot units, the second quantum dot layer comprises a plurality of second quantum dot units, and in a first direction, the first quantum dot units and the second quantum dot units are alternately arranged, and in a second direction, the first quantum dot units and the second quantum dot units are alternately arranged.

[0012] In some embodiments, the first quantum dot layer comprises a plurality of first quantum dot units, the second quantum dot layer comprises a plurality of second quantum dot units, and in a first direction, the first quantum dot units and the second quantum dot units are alternately arranged.

[0013] In some embodiments, the liquid crystal display panel comprises a plurality of pixels, the area of the first light transmission area is greater than or equal to the area of one of the pixels, and the area of the second light transmission area is greater than or equal to the area of one of the pixels.

[0014] In some embodiments, the light control layer comprises:

[0015] A blue backlight is disposed on a side of the light control layer far away from the liquid crystal display panel.

[0016] A first substrate is disposed between the backlight and the light control layer, the first substrate comprises a first polarizer, a first base material, and an electrode layer, the first polarizer is disposed between the first base material and the backlight, and the electrode layer is disposed on a side of the first base material far away from the first polarizer.

[0017] A second substrate is disposed between the first substrate and the light control layer, the second substrate comprises a second polarizer, a second base material, and a pixel segmentation layer, the second polarizer is disposed between the second base material and the light control layer, the pixel segmentation layer is disposed on a side of the second base material far away from the second polarizer, and the pixel segmentation layer is correspondingly arranged with the light blocking dam.

[0018] A liquid crystal layer is disposed between the first substrate and the second substrate.

[0019] In some embodiments, when the display device is configured in the first state, the portion of the blue backlight corresponding to the first light-transmissive region emits light, the portion of the liquid crystal layer corresponding to the first light-transmissive region is deflected, the light emitted by the light conditioning layer is emitted to the first light-transmissive region, and the light emitted by the light conditioning layer is not emitted to the second light-transmissive region.

[0020] In some embodiments, when the display device is configured in the second state, the portion of the blue backlight corresponding to the second light-transmissive region emits light, the portion of the liquid crystal layer corresponding to the second light-transmissive region is deflected, the light emitted by the light conditioning layer is not emitted to the first light-transmissive region, and the light emitted by the light conditioning layer is emitted to the second light-transmissive region.

[0021] In some embodiments, when the display device is configured in the second state, the portion of the blue backlight corresponding to the first light-transmissive region and the second light-transmissive region emits light, the portion of the liquid crystal layer corresponding to the first light-transmissive region and the second light-transmissive region is deflected, and the light emitted by the light conditioning layer is emitted to the first light-transmissive region and the second light-transmissive region.

[0022] In some embodiments, the light conditioning layer comprises a blue micro light emitting diode device or an organic light emitting diode device, and the light emitting material of the organic light emitting diode device comprises a blue light emitting material.

[0023] Beneficial effects: the embodiment of the application provides a display device; the display device comprises a liquid crystal display panel, a light control layer and a light adjusting layer, the light control layer is arranged on the light incidence side of the liquid crystal display panel, and the light adjusting layer is arranged on the side, away from the liquid crystal display panel, of the light control layer, wherein the light control layer comprises a first quantum dot layer, a transparent layer, a light shielding barrier wall and a second quantum dot layer, the light shielding barrier wall array is arranged to form a plurality of light transmission zones located between adjacent light shielding barrier walls, the transparent layer is arranged in the light transmission zones, the light transmission zones comprise a first light transmission zone and a second light transmission zone, the first quantum dot layer is arranged in the first light transmission zone, and the first quantum dot layer is arranged on the side, away from the liquid crystal display panel, of the transparent layer, the second quantum dot layer is arranged in the second light transmission zone, and the second quantum dot layer is arranged on the side, close to the liquid crystal display panel, of the transparent layer, and the part of the light adjusting layer corresponding to the first light transmission zone and the second light transmission zone is independently light-transmissive; when the display device is configured in a first state, light emitted by the light adjusting layer is emitted to the first quantum dot layer; and when the display device is configured in a second state, light emitted by the light adjusting layer is at least emitted to the second quantum dot layer. The light control layer and the light adjusting layer are arranged in the embodiment of the application, the light shielding barrier wall array in the light control layer is arranged to form the first light transmission zone and the second light transmission zone, the first quantum dot layer and the second quantum dot layer are arranged in the first light transmission zone and the second light transmission zone respectively, the first quantum dot layer is located below the transparent layer, the second quantum dot layer is located above the transparent layer, and the part of the light adjusting layer corresponding to the first light transmission zone and the second light transmission zone is independently light-transmissive, so that when the display device is in the first state, light emitted by the light adjusting layer is emitted to the first quantum dot layer, and since the first quantum dot layer is located below the transparent layer, the light of a large viewing angle excited by the first quantum dot layer is shielded by the light shielding barrier wall, so that the display effect of the anti-peeping mode is realized; and when the display device is in the second state, light emitted by the light adjusting layer is at least emitted to the second quantum dot layer, and since the second quantum dot layer is located above the transparent layer, the light of a large viewing angle excited by the second quantum dot layer is not shielded by the light shielding barrier wall, so that the light of a large viewing angle is emitted, the display effect of the sharing mode is realized, and the switching between the anti-peeping mode and the sharing mode is realized. BRIEF DESCRIPTION OF DRAWINGS

[0024] The technical scheme and other beneficial effects of the application will become apparent from the following detailed description of the application, taken in conjunction with the accompanying drawings.

[0025] Figure 1 A schematic diagram of the display device provided by the embodiment of the application.

[0026] Figure 2 A first schematic diagram of the light control layer provided by the embodiment of the application.

[0027] Figure 3 A second schematic diagram of the light control layer provided by the embodiment of the application.

[0028] Figure 4A light ray schematic diagram of a first state of the display device provided by the embodiment of the present application.

[0029] Figure 5 A first light ray schematic diagram of a second state of the display device provided by the embodiment of the present application.

[0030] Figure 6 A second light ray schematic diagram of the second state of the display device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0033] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless specifically defined and limited otherwise, "on" or "under" of a first feature with respect to a second feature can include that the first and second features are directly in contact, or that the first and second features are not directly in contact but are in contact through another feature between them. Moreover, "on", "above", and "on top of" of a first feature with respect to a second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. "Under", "below", and "underneath" of a first feature with respect to a second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0035] The disclosure hereafter provides many different embodiments or examples for implementing different structures of the present application. For the purpose of simplification of the present application, the components and settings of specific examples are described hereafter. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0036] The embodiments of the present application provide a display device to solve the technical problem that the existing peep-proof display device cannot convert the display mode by the peep-proof film to achieve the peep-proof effect.

[0037] As shown in Figure 1 , Figures 4 to 6 The embodiments of the present application provide a display device 1, which comprises:

[0038] A liquid crystal display panel 10;

[0039] A light control layer 20 arranged on the light-incident side of the liquid crystal display panel 10;

[0040] A light adjustment layer 30 arranged on the side of the light control layer 20 away from the liquid crystal display panel 10;

[0041] The light control layer 20 includes a first quantum dot layer 215, a transparent layer 214, a light-shielding barrier 213, and a second quantum dot layer 216. The light-shielding barrier 213 is arrayed to form multiple light-transmitting areas 203. The transparent layer 214 is disposed within each light-transmitting area 203. Each light-transmitting area 203 includes a first light-transmitting area 201 and a second light-transmitting area 202. The first quantum dot layer 215 is disposed within the first light-transmitting area 201, and is located on the side of the transparent layer 214 away from the liquid crystal display panel 10. The second quantum dot layer 216... A quantum dot layer 216 is disposed within the second light-transmitting area 202, and the second quantum dot layer 216 is disposed on the side of the transparent layer 214 near the liquid crystal display panel 10. The portion of the light-adjusting layer 30 corresponding to the first light-transmitting area 201 and the second light-transmitting area 202 is independently light-transmitting. When the display device 1 is configured in the first state, the light emitted by the light-adjusting layer 30 is emitted to the first quantum dot layer 215. When the display device 1 is configured in the second state, the light emitted by the light-adjusting layer 30 is emitted to at least the second quantum dot layer 216.

[0042] This application provides a display device that includes a light control layer and a light adjustment layer. The light control layer has an array of light-shielding barriers forming a first light-transmitting area and a second light-transmitting area. A first quantum dot layer and a second quantum dot layer are respectively disposed in the first and second light-transmitting areas. The first quantum dot layer is located below a transparent layer, and the second quantum dot layer is located above the transparent layer. The light adjustment layer allows portions corresponding to the first and second light-transmitting areas to transmit light independently. In a first state, the light emitted from the light adjustment layer reaches the first quantum dot layer. Because the first quantum dot layer is below the transparent layer, the wide-viewing-angle light emitted by the first quantum dot layer is blocked by the light-shielding barriers, achieving a privacy mode display effect. In a second state, the light emitted from the light adjustment layer reaches at least the second quantum dot layer. Because the second quantum dot layer is above the transparent layer, the wide-viewing-angle light emitted by the second quantum dot layer is not blocked by the light-shielding barriers, allowing the wide-viewing-angle light to pass through, achieving a sharing mode display effect. This enables the switching between privacy mode and sharing mode.

[0043] Specifically, such as Figure 4 As shown, when the display device 1 is configured in the first state, the first light ray 411 emitted by the light modulation layer 30 is emitted into the first quantum dot layer 215, such as... Figure 5 As shown, when the display device 1 is configured in the second state, the third light ray 413 emitted by the light adjustment layer 30 is emitted to the second quantum dot layer 216.

[0044] Specifically, the privacy mode refers to a mode in which the display device is configured in the first state. In the privacy mode, the display device can be normally viewed when viewed directly, and the display device cannot be clearly viewed or even cannot be viewed when viewed at at least one large viewing angle. The sharing mode refers to a mode in which the display device is configured in the second state. In the sharing mode, the display device can be normally viewed when viewed directly, and the display device can be clearly viewed when viewed at a large viewing angle. However, considering that the light at the large viewing angle can be less than the light at the direct viewing angle, the brightness at the large viewing angle in the sharing mode can be lower than the light at the direct viewing angle.

[0045] Specifically, it can be understood that the light emitted by the light adjusting layer is scattered to the surrounding after being excited by the quantum dots when passing through the first quantum dot layer and the second quantum dot layer. The angle of at least part of the light emitted by the light adjusting layer is increased after passing through the first quantum dot layer and the second quantum dot layer.

[0046] Specifically, the thickness of the first quantum dot layer and the thickness of the second quantum dot layer can be equal.

[0047] Specifically, the sum of the thickness of the first quantum dot layer and the thickness of the transparent layer in the first light transmission area is equal to the sum of the thickness of the second quantum dot layer and the thickness of the transparent layer in the second light transmission area, and the sum of the thickness of the first quantum dot layer and the thickness of the transparent layer in the first light transmission area is equal to the thickness of the light shielding wall.

[0048] Specifically, the above embodiment takes the second quantum dot layer being arranged on the side of the transparent layer close to the liquid crystal display panel as an example for description. This is because the light at a large viewing angle generated by arranging the second quantum dot layer on the transparent layer will not be blocked by the light shielding wall, and the transparent layer in the first light transmission area and the transparent layer in the second light transmission area can be formed by one process. However, the embodiments of the present application are not limited thereto. The transparent layer can include a first transparent layer and a second transparent layer, and the second quantum dot layer is located between the first transparent layer and the second transparent layer.

[0049] In some embodiments, as Figure 1As shown, the light control layer 20 further includes a first encapsulation layer 212 and a second encapsulation layer 217. The first encapsulation layer 212 is disposed on the side of the light-shielding barrier 213 away from the liquid crystal display panel 10, and the second encapsulation layer 217 is disposed on the side of the light-shielding barrier 213 close to the liquid crystal display panel 10. One side of the first quantum dot layer 215 and the light-shielding barrier 213 is in contact with the first encapsulation layer 212, and the other side of the second quantum dot layer 216 and the light-shielding barrier 213 is in contact with the second encapsulation layer 217. By setting the first and second encapsulation layers, water and oxygen intrusion that could cause the quantum dot layer to fail can be prevented. Furthermore, one side of the first quantum dot layer and the light-shielding barrier is in contact with the first encapsulation layer, causing the wide-angle light emitted by the first quantum dot layer to be absorbed by the light-shielding barrier. This results in a smaller angle of light emitted from the first light-transmitting area. The other side of the second quantum dot layer and the light-shielding barrier is in contact with the second encapsulation layer, ensuring that the light emitted by the second quantum dot layer is not blocked by the light-shielding barrier. This allows the light emitted from the second light-transmitting area to have a larger angle. Thus, by using different light angles from the first and second light-transmitting areas, it is possible to achieve either a wide-angle light emission or a narrow-angle light emission, thereby enabling the switching between the privacy mode and the sharing mode.

[0050] Specifically, regarding the specific structure of the first encapsulation layer and the second encapsulation layer, the first encapsulation layer and the second encapsulation layer can each be a single inorganic layer, or both the first encapsulation layer and the second encapsulation layer can be a structure consisting of multiple inorganic layers sandwiched with an organic layer.

[0051] Specifically, such as Figure 1 As shown, the light control layer 20 also includes a third substrate 211 and a fourth substrate 218. The third substrate 211 is disposed on the side of the first encapsulation layer 212 away from the light-shielding barrier 213, and the fourth substrate 218 is disposed on the side of the second encapsulation layer 217 close to the liquid crystal display panel 10. By providing the third substrate and the fourth substrate, other film layers can be supported, and the first quantum dot layer and the second quantum dot layer can be protected.

[0052] Specifically, the materials for the third and fourth substrates can be glass or polyimide.

[0053] In some embodiments, such as Figure 2As shown, the first quantum dot layer 215 includes a plurality of first quantum dot units 215a, and the second quantum dot layer 216 includes a plurality of second quantum dot units 216a. In the first direction X, the first quantum dot units 215a and the second quantum dot units 216a are arranged alternately. In the second direction Y, the first quantum dot units 215a and the second quantum dot units 216a are arranged alternately. By arranging the first quantum dot units and the second quantum dot units alternately in the first direction and arranging the first quantum dot units and the second quantum dot units alternately in the second direction, the first light transmission area and the second light transmission area are arranged alternately. When the display device is in the anti-peep mode, the first light transmission area is surrounded by the light shielding barrier wall, thereby preventing the light from the large viewing angle from being scattered from the periphery, and achieving the anti-peep effect in the up, down, left and right directions.

[0054] Specifically, in the first direction, the first light transmission area and the second light transmission area are arranged alternately. In the second direction, the first light transmission area and the second light transmission area are arranged alternately.

[0055] In some embodiments, as shown in Figure 3 As shown, the first quantum dot layer 215 includes a plurality of first quantum dot units 215a, and the second quantum dot layer 216 includes a plurality of second quantum dot units 216a. In the first direction X, the first quantum dot units 215a and the second quantum dot units 216a are arranged alternately. By arranging the first quantum dot units and the second quantum dot units alternately in the first direction and arranging the first quantum dot units and the second quantum dot units alternately in the second direction, the first light transmission area and the second light transmission area are arranged alternately. When the display device is in the anti-peep mode, the first light transmission area is surrounded by the light shielding barrier wall, thereby preventing the light from the large viewing angle from being scattered from the periphery, and achieving the anti-peep effect in the up, down, left and right directions.

[0056] In some embodiments, the first quantum dot layer includes a plurality of first quantum dot units, and the second quantum dot layer includes a plurality of second quantum dot units. In the second direction, the first quantum dot units and the second quantum dot units are arranged alternately. By arranging the first quantum dot units and the second quantum dot units alternately in the second direction, the anti-peep display effect of the display device in the up and down directions can be achieved.

[0057] Specifically, it can be understood that, for the design of the light shielding barrier wall, the design of the first quantum dot layer and the second quantum dot layer can be referred to. The light shielding barrier wall is arranged between the first quantum dot units and the second quantum dot units, for example, in Figure 3 In the first quantum dot units and the second quantum dot units are arranged alternately along the first direction, the light shielding barrier wall located between the first quantum dot units and the second quantum dot units is also arranged alternately along the first direction, and the light shielding barrier wall is arranged around the first quantum dot layer and the second quantum dot layer.

[0058] In some embodiments, the liquid crystal display panel includes a plurality of pixels, the first light-transmitting area has an area greater than or equal to that of one of the pixels, and the second light-transmitting area has an area greater than or equal to that of one of the pixels. By making the area of the first light-transmitting area greater than or equal to that of one pixel and the area of the second light-transmitting area greater than or equal to that of one of the pixels, the process of forming the first quantum dot layer and the second quantum dot layer is relatively simple, and the yield is relatively high.

[0059] Specifically, the area of the first light-transmitting area is greater than or equal to that of one of the pixels, and the area of the second light-transmitting area is greater than or equal to that of one of the pixels. When the display device is displaying, the light emitted by the first light-transmitting area will at least be emitted into one pixel. If the current display device only needs to display one sub-pixel in one pixel, for example, only needs to display a red sub-pixel, then the light in the area corresponding to the red sub-pixel can be controlled to pass through by the deflection of the liquid crystal of the liquid crystal display panel, thereby realizing the light-emitting control of a single sub-pixel. Similarly, for the light-emitting of two sub-pixels or multiple sub-pixels, the light-emitting control can be realized by the deflection of the liquid crystal of the liquid crystal display panel. The light control layer and the light adjusting layer located below the liquid crystal display panel are used to control the angle of the light emitted to the liquid crystal display panel.

[0060] In some embodiments, the light emitted by the first light-transmitting area can be diffused into the pixel corresponding to the second light-transmitting area, so that each pixel of the display device can also be normally displayed in the peep-proof mode.

[0061] The above embodiments are described by taking the area of the first light-transmitting area greater than or equal to that of one of the pixels and the area of the second light-transmitting area greater than or equal to that of one of the pixels as an example, but the embodiments of the present application are not limited thereto. The area of the first light-transmitting area can be less than that of one of the pixels, and the area of the second light-transmitting area can be less than that of one of the pixels.

[0062] In some embodiments, as shown in FIG. 1, the light adjusting layer 30 includes: Figure 1

[0063] The blue backlight 34 is arranged on the side of the light control layer 20 away from the liquid crystal display panel 10.

[0064] The first substrate 31 is arranged between the backlight 34 and the light control layer 20. The first substrate 31 includes a first polarizer 311, a first base material 312, and an electrode layer 313. The first polarizer 311 is arranged between the first base material 312 and the backlight 34. The electrode layer 313 is arranged on the side of the first base material 312 away from the first polarizer 311.

[0065] ​A second substrate 32 is arranged between the first substrate 31 and the light control layer 20. The second substrate 32 comprises a second polarizer 321, a second base material 322, and a pixel segmentation layer 323. The second polarizer 321 is arranged between the second base material 322 and the light control layer 20. The pixel segmentation layer 323 is arranged on a side of the second base material 322 away from the second polarizer 321. The pixel segmentation layer 323 is arranged in correspondence with the light shielding barrier 213.

[0066] A liquid crystal layer 33 is arranged between the first substrate 31 and the second substrate 32.

[0067] By arranging the blue backlight, the first substrate, the second substrate, and the liquid crystal layer, when the blue backlight emits light, the region in which the light of the light adjusting layer is controlled by the first substrate, the second substrate, and the liquid crystal layer, so that the light emitted by the light adjusting layer can only pass through the first light transmission area or only pass through the second light transmission area, or the light emitted by the light adjusting layer can pass through the first light transmission area and the second light transmission area.

[0068] Specifically, the blue backlight can be a side-in backlight module or a direct backlight module. When the blue backlight is a side-in backlight module, the light source is a blue light emitting diode, and then the light is emitted to the first substrate through a light guide plate and an optical film. The region of the light emitted by the light adjusting layer is controlled by the liquid crystal layer. When the blue backlight is a direct backlight module, the light source can be a blue light emitting diode. Each blue light emitting diode can be independently controlled, or all blue light emitting diodes can emit light at the same time. When each blue light emitting diode is independently controlled, the blue light emitting diodes corresponding to the first light transmission area and the second light transmission area are controlled separately, thereby realizing the light transmission control of the first light transmission area and the second light transmission area.

[0069] Specifically, the blue backlight can comprise a light source, a reflection layer, a light guide plate, and an optical film, which are not limited in the embodiments of the present application.

[0070] Specifically, according to different alignment modes of the liquid crystal, the display mode of the light adjusting layer can be a TN (Twisted Nematic) mode, a VA (Vertical Alignment) mode, and an IPS (In Plane Switching) mode. In the embodiments of the present application, the structure of the IPS mode is taken as an example for description. The first substrate comprises a first polarizer, a first base material, and an electrode layer. The electrode layer comprises a common electrode and a pixel electrode. An electric field formed by the common electrode and the pixel electrode drives the liquid crystal layer to deflect. The second substrate comprises a second polarizer, a second base material, and a pixel segmentation layer. The pixel segmentation layer is opaque, thereby controlling the emission region of the light.

[0071] Specifically, the color resist layer and electrode layer may not be provided on the second substrate.

[0072] In some embodiments, such as Figure 1 , Figure 4 As shown, when the display device 1 is configured in the first state, a portion of the blue backlight 34 corresponding to the first light-transmitting area 201 emits light, a portion of the liquid crystal layer 33 corresponding to the first light-transmitting area 201 is deflected, and light emitted from the light adjustment layer 30 is emitted to the first light-transmitting area 201, while light emitted from the light adjustment layer 30 is not emitted to the second light-transmitting area 202. By configuring the display device in the first state so that a portion of the blue backlight corresponding to the first light-transmitting area emits light and a portion of the liquid crystal layer corresponding to the first light-transmitting area is deflected, light emitted from the light adjustment layer can be emitted to the first light-transmitting area but not to the second light-transmitting area. This allows light to enter the first light-transmitting area but not the second light-transmitting area, resulting in a smaller angle of light diverging to the liquid crystal display panel, thereby achieving the display in the privacy mode of the display device.

[0073] Specifically, the liquid crystal layer may include multiple liquid crystal molecules. When the liquid crystal molecules are not deflected, light cannot pass through the light adjustment layer. When the liquid crystal molecules are deflected, light can pass through the light adjustment layer. Therefore, when the display device is configured in the first state, the liquid crystal molecules corresponding to the first light-transmitting area are deflected, while the liquid crystal molecules corresponding to the second light-transmitting area are not deflected. This allows only the light corresponding to the first light-transmitting area to pass through the light adjustment layer to the light control layer. Then, the light from the wide viewing angle is absorbed by the light control layer, enabling the display device to achieve the display effect in the privacy mode.

[0074] Specifically, after the light emitted by the light adjustment layer is emitted into the first light-transmitting area, the first quantum dot layer is excited to form light. The light with a wide viewing angle is blocked by the light-shielding wall, while the light emitted by the light adjustment layer will not be emitted into the second light-transmitting area. This allows the light with a narrow viewing angle to diffuse into the liquid crystal display panel, thereby achieving a display effect with a narrow viewing angle and realizing the display effect in privacy mode.

[0075] Specifically, such as Figure 4 As shown, the liquid crystal molecules corresponding to the first light-transmitting area 201 are deflected, and the first light 411 emitted by the blue backlight 34 corresponding to the first light-transmitting area 201 can be diffused into the first light-transmitting area 201. The liquid crystal molecules corresponding to the second light-transmitting area 202 are not deflected. The light is diffused by the first quantum dot layer 215 of the first light-transmitting area 201 to obtain the second light 412. It can be seen that the light with a large viewing angle in the second light 412 is blocked by the light-shielding barrier 213, thereby reducing the angle of the emitted light and realizing privacy display.

[0076] In some embodiments, such as Figure 1 ,Figure 5 As shown, when the display device 1 is configured in the second state, the part of the blue backlight 34 corresponding to the second light-transmitting area 202 emits light, the part of the liquid crystal layer 33 corresponding to the second light-transmitting area 202 deflects, the light emitted by the light adjusting layer 30 is not emitted to the first light-transmitting area 201, and the light emitted by the light adjusting layer 30 is emitted to the second light-transmitting area 202. By making the part of the blue backlight corresponding to the second light-transmitting area emit light and the part of the liquid crystal layer corresponding to the second light-transmitting area deflect, the light emitted by the light adjusting layer can be emitted to the second light-transmitting area and not emitted to the first light-transmitting area, so that the second light-transmitting area has light entering and the first light-transmitting area has no light entering, thereby making the angle of the light emitted to the liquid crystal display panel larger, thereby realizing the display of the sharing mode of the display device.

[0077] Specifically, when the display device is configured in the second state, the liquid crystal molecules corresponding to the second light-transmitting area deflect, and the liquid crystal molecules corresponding to the first light-transmitting area do not deflect, so that the light adjusting layer only emits light corresponding to the second light-transmitting area to the light control layer, and then the light control layer emits light with a large viewing angle, so that the display device realizes the display effect in the sharing mode.

[0078] Specifically, after the light emitted by the light adjusting layer is emitted to the second light-transmitting area, the light with a large viewing angle is not blocked by the light-blocking wall after the second quantum dot layer excites to form light, so that the light with a large viewing angle is emitted to the liquid crystal display panel, thereby realizing the display effect with a large viewing angle and realizing the display effect in the sharing mode.

[0079] Specifically, as shown in Figure 5 As shown, it can be seen that the liquid crystal molecules corresponding to the second light-transmitting area 202 deflect, and the third light 413 emitted by the blue backlight 34 corresponding to the second light-transmitting area 202 can be emitted to the second light-transmitting area 202. The liquid crystal molecules corresponding to the first light-transmitting area 201 do not deflect, and the fourth light 414 is obtained by dispersing the light through the second quantum dot layer 216 of the second light-transmitting area 202. It can be seen that the light with a large viewing angle in the fourth light 414 is not blocked by the light-blocking wall 213, so that the angle of the light emitted is larger, thereby realizing sharing display.

[0080] In some embodiments, as shown in Figure 1 , Figure 6As shown, when the display device 1 is configured in the second state, the portions of the blue backlight 34 corresponding to the first light-transmitting area 201 and the second light-transmitting area 202 emit light, and the portions of the liquid crystal layer 33 corresponding to the first light-transmitting area 201 and the second light-transmitting area 202 are deflected. The light emitted by the light adjustment layer 30 is emitted to the first light-transmitting area 201 and the second light-transmitting area 202. This allows all areas of the blue backlight to emit light when the display device is configured in the second state, and the portions of the liquid crystal layer corresponding to the first and second light-transmitting areas are deflected. This enables the light emitted by the light adjustment layer to reach the first and second light-transmitting areas, allowing the second light-transmitting area to emit light with a wide viewing angle, and increasing the brightness of the first light-transmitting area, thereby achieving the display effect in sharing mode and improving display brightness.

[0081] Specifically, such as Figure 6 As shown, the liquid crystal molecules corresponding to the first light-transmitting area 201 and the second light-transmitting area 202 are deflected. The first light 411 emitted by the blue backlight 34 corresponding to the first light-transmitting area 201 can be diffused into the first light-transmitting area 201, and the third light 413 emitted by the blue backlight 34 corresponding to the second light-transmitting area 202 can be diffused into the second light-transmitting area 202. The light is diffused through the first quantum dot layer 215 of the first light-transmitting area 201 to obtain the second light 412, and through the second quantum dot layer 216 of the second light-transmitting area 202 to obtain the fourth light 414. Although the light with a large viewing angle in the second light 412 is blocked by the light-shielding wall 213, the light with a large viewing angle in the fourth light 414 is not blocked by the light-shielding wall 213, thus allowing the emitted light to have a larger angle and achieving shared display.

[0082] Specifically, it can be understood that when the blue backlight source is a direct-lit backlight module in the above embodiments, the blue backlight source can include multiple blue light-emitting diodes, so that the blue light-emitting diodes corresponding to the first light-transmitting area emit light, and the blue light-emitting diodes corresponding to the second light-transmitting area do not emit light. When the blue backlight source is a side-lit backlight module, the portions of the blue backlight source corresponding to the first light-transmitting area and the second light-transmitting area can both emit light. The area of ​​the diffused light is controlled by the deflection of different regions of the liquid crystal layer, so that the light selectively reaches the first quantum dot layer and / or the second quantum dot layer.

[0083] Specifically, the above embodiments use a liquid crystal display panel with a backlight as an example of a light adjustment layer, but the embodiments of this application are not limited to this. Any structure that can achieve regional light emission is also an embodiment of this application.

[0084] In some embodiments, the light adjusting layer comprises a blue micro light emitting diode device or an organic light emitting diode device, and the light emitting material of the organic light emitting diode device comprises a blue light emitting material. By making the light adjusting layer a blue micro light emitting diode or an organic light emitting diode device, the thickness of the display device can be reduced, and the blue micro light emitting diode and the organic light emitting diode device can realize area light emission.

[0085] Specifically, the blue micro light emitting diode device can comprise a blue micro light emitting diode and a driving circuit for controlling the blue micro light emitting diode.

[0086] Specifically, the organic light emitting diode device can comprise a driving circuit, a pixel electrode, a light emitting material, and a common electrode.

[0087] Specifically, the above embodiments take the light emitting color of the light adjusting layer as blue light (the light emitting material of the blue micro light emitting diode device and the organic light emitting diode device is a blue light emitting material) as an example for illustration, because the use of a blue light adjusting layer can make the first quantum dot layer and the second quantum dot layer adopt one material, and the width of the first quantum dot layer and the second quantum dot layer does not need to be set as the size of a sub-pixel, thereby reducing the process difficulty. However, the embodiments of the present application are not limited thereto, and when the process difficulty is not considered, the light adjusting layer can emit red, green, and blue light, and then the quantum dot layer is correspondingly set to excite white light or red, green, and blue light.

[0088] Specifically, the first quantum dot layer and the second quantum dot layer are used to excite the blue light emitted by the light adjusting layer to form white light.

[0089] Specifically, the light shielding barrier wall can be formed by using a compression molding or photolithography technology, and is used to absorb the arriving light and divide the light control layer into multiple areas.

[0090] Specifically, the transparent layer in the first light transmission area can transmit light and protect the first quantum dot layer, and the transparent layer in the second light transmission area can transmit light and support the second quantum dot layer.

[0091] Specifically, the first quantum dot layer comprises quantum dots, and the second quantum dot layer comprises quantum dots, and the material of the quantum dots can be at least one of cadmium selenide, indium phosphide, and perovskite.

[0092] Specifically, the width of the first light transmission area ranges from 150 microns to 350 microns, and the width of the second light transmission area ranges from 150 microns to 350 microns.

[0093] Specifically, the thickness of the transparent layer ranges from 150 microns to 350 microns.

[0094] Specifically, the width of the light shielding barrier wall ranges from 3 microns to 10 microns.

[0095] Specifically, the thickness of the transparent region is greater than or equal to the width of the first light-transmitting region, and the thickness of the transparent region is greater than or equal to the width of the second light-transmitting region.

[0096] Specifically, as shown in FIG. 1, the liquid crystal display panel 10 includes a lower substrate 111, an upper substrate 113, and a liquid crystal film layer 112 between the lower substrate 111 and the upper substrate 113. Figure 1

[0097] Specifically, the liquid crystal display panel is not limited in the embodiments of the present application, and can be an In-Plane Switching (IPS) type liquid crystal display panel, a Horizontal Field Switching (HFS) type liquid crystal display panel, a Twisted Nematic (TN) type liquid crystal display panel, a Super Twisted Nematic (STN) type liquid crystal display panel, a Vertical Alignment (VA) type liquid crystal display panel, or a Fringe-field Switching (FFS) type liquid crystal display panel. The liquid crystal display panel can include an array substrate and a color film substrate, and can also include a COA (Color On Array) substrate.

[0098] The above embodiments are described from various structures and combinations of various structures, and when there is no conflict between the embodiments, the embodiments can be combined. For example, the light control layer further includes a first encapsulation layer and a second encapsulation layer, the first encapsulation layer is arranged on a side of the light-shielding dam wall away from the liquid crystal display panel, the second encapsulation layer is arranged on a side of the light-shielding dam wall close to the liquid crystal display panel, one side of the light-shielding dam wall and the first encapsulation layer are in contact, the other side of the light-shielding dam wall and the second encapsulation layer are in contact, the first quantum dot layer includes a plurality of first quantum dot units, the second quantum dot layer includes a plurality of second quantum dot units, the first quantum dot units and the second quantum dot units are arranged alternately in a first direction, and the first quantum dot units and the second quantum dot units are arranged alternately in a second direction.

[0099] According to the above embodiments, it can be known that:

[0100] ​The embodiment of the present application provides a display device; the display device comprises a liquid crystal display panel, a light control layer and a light adjusting layer, the light control layer is arranged on the light incident side of the liquid crystal display panel, and the light adjusting layer is arranged on the side, away from the liquid crystal display panel, of the light control layer, wherein the light control layer comprises a first quantum dot layer, a transparent layer, a light shielding barrier wall and a second quantum dot layer, the light shielding barrier wall array is arranged to form a plurality of light transmission zones between adjacent light shielding barrier walls, the transparent layer is arranged in the light transmission zone, the light transmission zone comprises a first light transmission zone and a second light transmission zone, the first quantum dot layer is arranged in the first light transmission zone, and the first quantum dot layer is arranged on the side, away from the liquid crystal display panel, of the transparent layer, the second quantum dot layer is arranged in the second light transmission zone, and the second quantum dot layer is arranged on the side, close to the liquid crystal display panel, of the transparent layer, and the part of the light adjusting layer corresponding to the first light transmission zone and the second light transmission zone is independently light-transmissive; when the display device is configured as a first state, the light emitted by the light adjusting layer is emitted to the first quantum dot layer; and when the display device is configured as a second state, the light emitted by the light adjusting layer is at least emitted to the second quantum dot layer. According to the present application, the light shielding barrier wall array in the light control layer is arranged to form the first light transmission zone and the second light transmission zone, the first quantum dot layer and the second quantum dot layer are arranged in the first light transmission zone and the second light transmission zone respectively, the first quantum dot layer is located below the transparent layer, the second quantum dot layer is located above the transparent layer, and the part of the light adjusting layer corresponding to the first light transmission zone and the second light transmission zone is independently light-transmissive, so that when the display device is in the first state, the light emitted by the light adjusting layer is emitted to the first quantum dot layer, and since the first quantum dot layer is located below the transparent layer, the light of a large viewing angle excited by the first quantum dot layer is shielded by the light shielding barrier wall, so that the display effect of the anti-peeping mode is realized; and when the display device is in the second state, the light emitted by the light adjusting layer is at least emitted to the second quantum dot layer, and since the second quantum dot layer is located above the transparent layer, the light of a large viewing angle excited by the second quantum dot layer will not be shielded by the light shielding barrier wall, so that the light of a large viewing angle is emitted, the display effect of the sharing mode is realized, and the switching between the anti-peeping mode and the sharing mode is realized.

[0101] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0102] The display device provided by the embodiment of the present application is described in detail above, and the principle and implementation manner of the present application are described by applying specific examples; the above embodiment is only used to help understand the technical scheme and core idea of the present application; those skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and the modification or replacement does not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present application.

Claims

1. A display device, characterized in that, include: LCD display panel; A light control layer is disposed on one side of the light-incident surface of the liquid crystal display panel; A light adjustment layer is disposed on the side of the light control layer away from the liquid crystal display panel; The light control layer includes a first quantum dot layer, a transparent layer, a light-shielding barrier, and a second quantum dot layer. The light-shielding barrier array is configured to form multiple light-transmitting areas located between adjacent light-shielding barriers. The transparent layer is disposed within the light-transmitting areas, which include a first light-transmitting area and a second light-transmitting area. The first quantum dot layer is disposed within the first light-transmitting area and is located on the side of the transparent layer away from the liquid crystal display panel. The second quantum dot layer is disposed within the second light-transmitting area and is located on the side of the transparent layer closer to the liquid crystal display panel. The portion of the light adjustment layer corresponding to the first and second light-transmitting areas is independently light-transmitting. When the display device is configured in a first state, the light emitted by the light adjustment layer is emitted to the first quantum dot layer, and the light emitted by the light adjustment layer is not emitted to the second light-transmitting area. When the display device is configured in a second state, the light emitted by the light adjustment layer is emitted to at least the second quantum dot layer.

2. The display device as claimed in claim 1, characterized in that, The light control layer further includes a first encapsulation layer and a second encapsulation layer. The first encapsulation layer is disposed on the side of the light-shielding barrier away from the liquid crystal display panel, and the second encapsulation layer is disposed on the side of the light-shielding barrier close to the liquid crystal display panel. The first quantum dot layer and one side of the light-shielding barrier are in contact with the first encapsulation layer, and the second quantum dot layer and the other side of the light-shielding barrier are in contact with the second encapsulation layer.

3. The display device as claimed in claim 1, characterized in that, The first quantum dot layer includes a plurality of first quantum dot units, and the second quantum dot layer includes a plurality of second quantum dot units. In a first direction, the first quantum dot units and the second quantum dot units are alternately arranged, and in a second direction, the first quantum dot units and the second quantum dot units are alternately arranged.

4. The display device as claimed in claim 1, characterized in that, The first quantum dot layer includes multiple rows of first quantum dot units, and the second quantum dot layer includes multiple rows of second quantum dot units. In a first direction, the first quantum dot units and the second quantum dot units are alternately arranged.

5. The display device as claimed in claim 1, characterized in that, The liquid crystal display panel includes a plurality of pixels, wherein the area of ​​the first light-transmitting area is greater than or equal to the area of ​​one of the pixels, and the area of ​​the second light-transmitting area is greater than or equal to the area of ​​one of the pixels.

6. The display device as claimed in claim 1, characterized in that, The light modulation layer includes: A blue backlight source is disposed on the side of the light control layer away from the liquid crystal display panel; A first substrate is disposed between the backlight and the light control layer. The first substrate includes a first polarizer, a first substrate and an electrode layer. The first polarizer is disposed between the first substrate and the backlight, and the electrode layer is disposed on the side of the first substrate away from the first polarizer. A second substrate is disposed between the first substrate and the light control layer. The second substrate includes a second polarizer, a second substrate and a pixel segmentation layer. The second polarizer is disposed between the second substrate and the light control layer. The pixel segmentation layer is disposed on the side of the second substrate away from the second polarizer. The pixel segmentation layer is disposed corresponding to the light-shielding barrier. A liquid crystal layer is disposed between the first substrate and the second substrate.

7. The display device as claimed in claim 6, characterized in that, When the display device is configured in the first state, the portion of the blue backlight corresponding to the first light-transmitting area emits light, the portion of the liquid crystal layer corresponding to the first light-transmitting area is deflected, and the light emitted by the light-adjusting layer is emitted to the first light-transmitting area.

8. The display device as claimed in claim 7, characterized in that, When the display device is configured in the second state, the portion of the blue backlight corresponding to the second light-transmitting area emits light, the portion of the liquid crystal layer corresponding to the second light-transmitting area is deflected, the light emitted by the light adjustment layer is not emitted to the first light-transmitting area, and the light emitted by the light adjustment layer is emitted to the second light-transmitting area.

9. The display device as claimed in claim 7, characterized in that, When the display device is configured in the second state, the portions of the blue backlight corresponding to the first and second light-transmitting areas emit light, the portions of the liquid crystal layer corresponding to the first and second light-transmitting areas are deflected, and the light emitted by the light-adjusting layer is emitted to the first and second light-transmitting areas.

10. The display device as claimed in claim 1, characterized in that, The light modulation layer includes a blue micro light-emitting diode device or an organic light-emitting diode device, wherein the light-emitting material of the organic light-emitting diode device includes a blue light-emitting material.

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