Display device

Abstract

The utility model provides a display device which comprises a first polaroid, a second polaroid and a display panel, wherein the first polaroid and the second polaroid are oppositely arranged, and the display panel is located between the first polaroid and the second polaroid. Wherein the first polaroid is located on one side of a light emitting surface of the display panel, and the first polaroid comprises a first polarization function layer and a first protection layer located on one side, deviating from the display panel, of the first polarization function layer; the second polaroid comprises a second polarization function layer and a second protection layer located on the side, away from the display panel, of the second polarization function layer; the first protection layer and the second protection layer are made of different materials.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a display device. Background Art

[0002] Liquid Crystal Display (LCD) is generally composed of two polarizers and a display panel (Cell) in the middle. Each polarizer is mainly composed of a polyviny alcohol (PVA) layer and waterproof layers located on opposite sides of the PVA layer; the PVA layer mainly plays a polarizing role, and is configured to convert the natural polarized light emitted by the backlight into linear polarized light. However, the PVA layer easily absorbs moisture and becomes degraded and ineffective. Therefore, the waterproof layer can effectively prevent the damage of the PVA layer by external water vapor.

[0003] In the polarizer structure commonly used in current LCD products, the waterproof layer materials on the upper and lower polarizers facing away from the cell are the same. Among them, the backlight is located on the side of the lower polarizer facing away from the cell, especially when the backlight uses sub-millimeter light emitting diodes (Mini LED) or quantum dots (Quantum Dot, QD), and the waterproof layer on the side of the lower polarizer facing away from the cell is made of polyethyleneterephthalate (PET), obvious rainbow pattern defects will appear. Utility Model Content

[0004] The utility model provides a display device for avoiding the problem of rainbow pattern defects.

[0005] The present invention provides a display device, comprising:

[0006] A first polarizer and a second polarizer arranged opposite to each other, and a display panel located between the first polarizer and the second polarizer;

[0007] Among them, the first polarizer is located on the light-emitting side of the display panel, and the first polarizer includes a first polarizing functional layer and a first protective layer located on the side of the first polarizing functional layer away from the display panel; the second polarizer includes a second polarizing functional layer and a second protective layer located on the side of the second polarizing functional layer away from the display panel; the first protective layer and the second protective layer are made of different materials.

[0008] In a possible implementation manner, the second protective layer is any one of PMMA, COP, and NRT TAC.

[0009] In a possible implementation manner, the first protective layer is any one of PET, PMMA, COP, and NRT TAC.

[0010] In a possible implementation manner, the waterproofness of the first protective layer is higher than the waterproofness of the second protective layer.

[0011] In a possible implementation, the first polarizer further includes a third protective layer located on a side of the first polarizing functional layer close to the display panel, and the second polarizer further includes a fourth protective layer located on a side of the second polarizing functional layer close to the display panel; in a spatial rectangular coordinate system, the refractive index of the third protective layer on the horizontal axis, longitudinal axis and vertical axis is equal, and the refractive index of the fourth protective layer on the horizontal axis, longitudinal axis and vertical axis is equal.

[0012] In a possible implementation manner, the waterproofness of the first protective layer is higher than the waterproofness of the third protective layer.

[0013] In a possible implementation manner, the third protective layer is any one of PMMA, COP, and NRT TAC.

[0014] In a possible implementation manner, the fourth protective layer is any one of PMMA, COP, and NRT TAC.

[0015] In a possible implementation manner, the optical axis of the first polarizer and the optical axis of the second polarizer are arranged perpendicular to each other.

[0016] In a possible implementation, the first protective layer is PET, and the optical axis angle of the first protective layer is 45°, and the phase difference of the first protective layer is 1 / 4 wavelength.

[0017] In a possible implementation, it also includes a backlight source located on the side of the second polarizer away from the display panel, and the backlight source is any one of LED, Mini LED, and QD.

[0018] The beneficial effects of the utility model are as follows:

[0019] The embodiment of the utility model provides a display device, which includes a first polarizer and a second polarizer that are arranged opposite to each other, and a display panel located between the first polarizer and the second polarizer; wherein the first polarizer is located on the light-emitting side of the display panel, and the first polarizer includes a first polarizing functional layer and a first protective layer located on the side of the first polarizing functional layer away from the display panel; the second polarizer includes a second polarizing functional layer and a second protective layer located on the side of the second polarizing functional layer away from the display panel; the first protective layer and the second protective layer are made of different materials. In other words, the materials of the protective layers located on the side away from the display panel in the first polarizer and the second polarizer are different. In this case, when the material of the second protective layer located on the side of the second polarizing functional layer away from the display panel in the second polarizer is set to a material other than PET, the problem of poor rainbow is effectively avoided, and the display effect of the display device is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0024] Figure 5 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0025] Figure 6 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0026] Figure 7 A schematic diagram of a structure of a display device provided by an embodiment of the utility model;

[0027] Description of reference numerals:

[0028] 10-first polarizer; 20-second polarizer; 30-display panel; 11-first polarizing functional layer; 12-first protective layer; 21-second polarizing functional layer; 22-second protective layer; 13-third protective layer; 23-fourth protective layer; 14-first adhesive layer; 24-second adhesive layer; 15-surface treatment layer. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. And in the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Inside", "outside", "upper", "lower", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, and are only intended to illustrate the contents of the utility model. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0032] In the related art, in the polarizer structure commonly used in LCD products, the material of the waterproof layer on the side away from the Cell in the upper polarizer and the lower polarizer is the same. The inventors found in actual research that when the backlight adopts Mini LED or QD, and the waterproof layer on the side away from the Cell in the lower polarizer adopts PET material, obvious rainbow pattern defects will appear. Among them, the backlight is located on the side of the lower polarizer away from the Cell. The generation of rainbow patterns is mainly because the waterproof layer on the side of the lower polarizer away from the Cell adopts PET material. There is a certain phase difference in PET material. The light emitted by the backlight is very easy to interfere after passing through the waterproof layer of PET material. The stripes formed by interference are rainbow patterns, which affect the display effect of the display device.

[0033] In view of this, an embodiment of the utility model provides a display device for avoiding the problem of rainbow pattern defects and improving the display effect.

[0034] like Figure 1 As shown, an embodiment of the utility model provides a display device, which includes:

[0035] A first polarizer 10 and a second polarizer 20 are arranged opposite to each other, and a display panel 30 is located between the first polarizer 10 and the second polarizer 20; optionally, the display panel 30 may be a liquid crystal display panel.

[0036] Among them, the first polarizer 10 is located on the light-emitting side of the display panel 30, and the first polarizer 10 includes a first polarizing functional layer 11 and a first protective layer 12 located on the side of the first polarizing functional layer 11 away from the display panel 30; the second polarizer 20 includes a second polarizing functional layer 21 and a second protective layer 22 located on the side of the second polarizing functional layer 21 away from the display panel 30; the first protective layer 12 and the second protective layer 22 are made of different materials.

[0037] In a specific implementation process, the display device includes a first polarizer 10 and a second polarizer 20 arranged opposite to each other, and a display panel 30 located between the first polarizer 10 and the second polarizer 20. Exemplarily, the first polarizer 10 is located on the light-emitting side of the display panel 30, so that the first polarizer 10 can be an upper polarizer of the display device; correspondingly, the second polarizer 20 can be located on the side of the display panel 30 close to the backlight source, so that the second polarizer 20 can be a lower polarizer of the display device. Exemplarily, the display panel 30 includes a color filter substrate and an array substrate arranged in a box, and a liquid crystal layer located between the color filter substrate and the array substrate, the first polarizer 10 is located on the side of the color filter substrate away from the liquid crystal layer, and the second polarizer 20 is located on the side of the array substrate away from the liquid crystal layer.

[0038] Moreover, the first polarizer 10 includes a first polarizing functional layer 11 and a first protective layer 12 located on the side of the first polarizing functional layer 11 away from the display panel 30. Exemplarily, the first polarizing functional layer 11 may be a PVA film. The second polarizer 20 includes a second polarizing functional layer 21 and a second protective layer 22 located on the side of the second polarizing functional layer 21 away from the display panel 30. Exemplarily, the second polarizing functional layer 21 may be a PVA film. In addition, the materials of the first protective layer 12 and the second protective layer 22 are different. Exemplarily, the material of the first protective layer 12 is PET, and the material of the second protective layer 22 is polymethyl methacrylate (Poly Methyl Meth Acrylate, PMMA). Exemplarily, the material of the first protective layer 12 is cycloolefin polymer (Cyclic Olefin Polymer, COP), and the material of the second protective layer 22 is PMMA. Exemplarily, the material of the first protective layer 12 is PET, and the material of the second protective layer 22 is NRT TAC (No Retardation Tri-Acetate Cellulose). Of course, the specific materials of the first protective layer 12 and the second protective layer 22 can also be set according to actual application needs, which is not limited here. In the specific implementation process, since the materials of the protective layers on the side away from the display panel 30 in the first polarizer 10 and the second polarizer 20 are different, when the material of the second protective layer 22 on the side away from the display panel 30 of the second polarizing functional layer 21 in the second polarizer 20 is subsequently set to a material other than PET, the problem of rainbow defects can be effectively avoided, thereby ensuring the display effect of the display device.

[0039] In the embodiment of the present invention, the second protective layer 22 is any one of PMMA, COP and NRT TAC.

[0040] In the specific implementation process, the required material can be selected according to the actual waterproof performance and preparation cost of the second protective layer 22. Among them, when the material of the second protective layer 22 is any one of PMMA, COP, and NRT TAC, the waterproof performance is COP, PMMA, and NRT TAC in order from best to worst. Of course, the material of the second protective layer 22 can also be set according to other application needs, which is not limited here. It should be noted that in the embodiment of the utility model, the material of the second protective layer 22 can be other materials besides PET, which is not limited here.

[0041] In the embodiment of the present invention, the first protective layer 12 is any one of PET, PMMA, COP, and NRT TAC.

[0042] In the specific implementation process, the required material can be selected according to the actual waterproof performance and preparation cost of the first protective layer 12. Among them, when the material of the first protective layer 12 is any one of PET, PMMA, COP, and NRT TAC, the waterproof performance is COP, PET, PMMA, and NRT TAC in descending order. Of course, the material of the first protective layer 12 can also be set according to other application needs, which is not limited here.

[0043] In the embodiment of the utility model, the waterproof property of the first protective layer 12 is higher than the waterproof property of the second protective layer 22 .

[0044] In the specific implementation process, since the first polarizer 10 is located on the outermost surface of the display device and the second polarizer 20 is located inside the display device, the first polarizer 10 is more susceptible to damage to the internal polarization function layer due to water vapor intrusion than the second polarizer 20. The waterproofness of the first protective layer 12 can be set to be higher than the waterproofness of the second protective layer 22, thereby effectively avoiding damage to the first polarization function layer 11 by external water vapor. In this way, while improving the performance of the first polarizer 10, the performance of the display device is guaranteed. Exemplarily, the material of the first protective layer 12 is PET, and the material of the second protective layer 22 is PMMA. Exemplarily, the material of the first protective layer 12 is COP, and the material of the second protective layer 22 is NRT TAC.

[0045] In an embodiment of the utility model, the first polarizer 10 further includes a third protective layer 13 located on the side of the first polarizing functional layer 11 close to the display panel 30, and the second polarizer 20 further includes a fourth protective layer 23 located on the side of the second polarizing functional layer 21 close to the display panel 30; in a spatial rectangular coordinate system, the refractive index of the third protective layer 13 on the horizontal axis, the longitudinal axis and the vertical axis is equal, and the refractive index of the fourth protective layer 23 on the horizontal axis, the longitudinal axis and the vertical axis is equal.

[0046] Combination Figures 1 to 7In the exemplary embodiment shown, the first polarizer 10 further includes a third protective layer 13 located on the side of the first polarizing functional layer 11 close to the display panel 30, and the second polarizer 20 further includes a fourth protective layer 23 located on the side of the second polarizing functional layer 21 close to the display panel 30. In the specific implementation process, the third protective layer 13 and the fourth protective layer 23 can be made of the same material or different materials. Moreover, in the spatial rectangular coordinate system, the refractive index of the third protective layer 13 on the horizontal axis, the vertical axis and the vertical axis is equal, and the refractive index of the fourth protective layer 23 on the horizontal axis, the vertical axis and the vertical axis is equal. It should be noted that the "equal" mentioned here can be approximately equal or roughly equal, and is not limited here. In practical applications, the materials used to prepare the third protective layer 13 and the fourth protective layer 23 can be materials that meet the zero phase difference. In this way, the fourth protective layer 23 ensures that the polarization state of the light does not change when it is emitted from the second polarizer 20, and the third protective layer 13 ensures that the polarization state of the light does not change after it is emitted from the display panel 30.

[0047] In the embodiment of the utility model, the waterproof property of the first protective layer 12 is higher than the waterproof property of the third protective layer 13 .

[0048] In a specific implementation, the water resistance of the first protective layer 12 is higher than that of the third protective layer 13. For example, the hydrophobicity of the material used to prepare the first protective layer 12 is higher than that of the material used to prepare the third protective layer 13. In this way, the erosion of the internal polarization functional layer by external water vapor is effectively avoided, thereby improving the performance of the display device.

[0049] In the embodiment of the present utility model, the third protective layer 13 is any one of PMMA, COP and NRT TAC.

[0050] In the embodiment of the utility model, the fourth protective layer 23 is any one of PMMA, COP and NRT TAC.

[0051] In the specific implementation process, when the above-mentioned materials are PET, PMMA, COP, and NRT TAC, the waterproof performance can be COP, PET, PMMA, and NRT TAC in descending order. Of course, in actual applications, the materials of the third protective layer 13 and the fourth protective layer can be set according to actual application needs.

[0052] It should be noted that the display device provided by the embodiment of the present invention, in addition to the film layers mentioned above, can also be provided with other film layer structures according to actual application needs. Figures 1 to 7In the exemplary embodiment shown, the first polarizer 10 further includes a first adhesive layer 14 located on the side of the third protective layer 13 close to the display panel 30; the second polarizer 20 further includes a second adhesive layer 24 located on the side of the fourth protective layer 23 close to the display panel 30. Exemplarily, the first adhesive layer 14 can be a pressure sensitive adhesive (PSA), and the second adhesive layer 24 can be a PSA. In this way, the reliability of the adhesion between the first polarizer 10 and the second polarizer 20 and the display panel 30 is ensured, and the structural stability of the display device is ensured.

[0053] In addition, the first polarizer 10 also includes a surface treatment layer 15 located on the side of the first protective layer 12 away from the display panel 30. Exemplarily, the surface of the first protective layer 12 on the side away from the display panel 30 can be treated to form a surface treatment layer 15, thereby achieving some required functions. Exemplarily, it can be an anti-glare (Anti-Glare, AG) treatment, such as AG1, AG25, etc. Exemplarily, it can also be a low reflection (Low Reflectance, LR) treatment. Exemplarily, it can also be an AG treatment with any haze size and an LR treatment with any reflectivity, or a combination of any two. For example, AGLR, AG25LR, etc. Exemplarily, it can also be an anti-scratch hardening (Hard Coating, HC) treatment. Of course, the side of the first protective layer 12 away from the display panel 30 can also be processed according to actual application needs, which will not be described in detail here.

[0054] The specific structural arrangement of the display device provided by the embodiment of the utility model is explained below in conjunction with specific embodiments.

[0055] exist Figure 1 In the exemplary embodiment shown, the first polarizer 10 includes a first adhesive layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12, and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. The first adhesive layer 14 is PSA, the third protective layer 13 is NRT TAC, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second adhesive layer 24, a fourth protective layer 23, a second polarizing functional layer 21, and a second protective layer 22, which are sequentially arranged away from the display panel 30. The second adhesive layer 24 is PSA, the fourth protective layer 23 is NRT TAC, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA.

[0056] exist Figure 2In the exemplary embodiment shown, the first polarizer 10 includes a first adhesive layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12, and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. The first adhesive layer 14 is PSA, the third protective layer 13 is PMMA, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second adhesive layer 24, a fourth protective layer 23, a second polarizing functional layer 21, and a second protective layer 22, which are sequentially arranged away from the display panel 30. The second adhesive layer 24 is PSA, the fourth protective layer 23 is NRT TAC, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA.

[0057] exist Figure 3 In the exemplary embodiment shown, the first polarizer 10 includes a first adhesive layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12, and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. The first adhesive layer 14 is PSA, the third protective layer 13 is NRT TAC, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second adhesive layer 24, a fourth protective layer 23, a second polarizing functional layer 21, and a second protective layer 22, which are sequentially arranged away from the display panel 30. The second adhesive layer 24 is PSA, the fourth protective layer 23 is PMMA, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA.

[0058] exist Figure 4 In the exemplary embodiment shown, the first polarizer 10 includes a first adhesive layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12, and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. The first adhesive layer 14 is PSA, the third protective layer 13 is PMMA, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second adhesive layer 24, a fourth protective layer 23, a second polarizing functional layer 21, and a second protective layer 22, which are sequentially arranged away from the display panel 30. The second adhesive layer 24 is PSA, the fourth protective layer 23 is PMMA, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA.

[0059] exist Figure 5In the exemplary embodiment shown, the first polarizer 10 includes a first adhesive layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12, and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. The first adhesive layer 14 is PSA, the third protective layer 13 is COP, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second adhesive layer 24, a fourth protective layer 23, a second polarizing functional layer 21, and a second protective layer 22, which are sequentially arranged away from the display panel 30. The second adhesive layer 24 is PSA, the fourth protective layer 23 is NRT TAC, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA.

[0060] exist Figure 6 In the exemplary embodiment shown, the first polarizer 10 includes a first adhesive layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12, and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. Among them, the first adhesive layer 14 is PSA, the third protective layer 13 is COP, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second adhesive layer 24, a fourth protective layer 23, a second polarizing functional layer 21, and a second protective layer 22, which are sequentially arranged away from the display panel 30. Among them, the second adhesive layer 24 is PSA, the fourth protective layer 23 is COP, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA.

[0061] In the embodiment of the utility model, the optical axis of the first polarizer 10 and the optical axis of the second polarizer 20 are arranged perpendicular to each other.

[0062] In one exemplary embodiment, based on Figures 1 to 6 In the exemplary embodiment shown, the optical axis angle of the first polarizer 10 can be 0°, and the optical axis angle of the second polarizer 20 can be 90°. In one exemplary embodiment, based on Figures 1 to 6 In the exemplary embodiment shown, the optical axis angle of the first polarizer 10 can be 90°, and the optical axis angle of the second polarizer 20 can be 0°. In this way, the adjustment of the polarization state of light by the relevant polarizers is ensured.

[0063] In the embodiment of the present invention, the first protective layer 12 is PET, and the optical axis angle of the first protective layer 12 is 45°, and the phase difference of the first protective layer 12 is 1 / 4 wavelength.

[0064] exist Figure 7In the exemplary embodiment shown, the first polarizer 10 includes a first glue layer 14, a third protective layer 13, a first polarizing functional layer 11, a first protective layer 12 and a surface treatment layer 15, which are sequentially arranged away from the display panel 30. Among them, the first glue layer 14 is PSA, the third protective layer 13 is NRT TAC, the first polarizing functional layer 11 is PVA, and the first protective layer 12 is PET. The second polarizer 20 includes a second glue layer 24, a fourth protective layer 23, a second polarizing functional layer 21 and a second protective layer 22, which are sequentially arranged away from the display panel 30. Among them, the second glue layer 24 is PSA, the fourth protective layer 23 is NRT TAC, the second polarizing functional layer 21 is PVA, and the second protective layer 22 is PMMA. Moreover, the optical axis angle of the first protective layer 12 is 45°, and the phase difference of the first protective layer 12 is 1 / 4 wavelength. In this way, the outgoing light can be adjusted from linear polarization to circular polarization, thereby providing a guarantee for healthy eye protection.

[0065] It should be noted that in Figure 7 In the exemplary embodiment shown, the optical axis angle of the second protective layer 22 can be 90°, 0°, or other angle values, which are not limited here. Figures 2 to 6 In the exemplary embodiment, the optical axis angle of the first protective layer 12 made of PET is set to 45°, and the phase difference of the first protective layer 12 is set to 1 / 4 wavelength. The specific settings can be implemented by referring to the relevant technology and will not be described in detail here. In this way, the diversified design of the display device is improved.

[0066] In an embodiment of the utility model, the display device further includes a backlight source located on a side of the second polarizer 20 away from the display panel 30 , and the backlight source is any one of LED, Mini LED, and QD.

[0067] In a specific implementation process, the display device further includes a backlight source located on the side of the second polarizer 20 away from the display panel 30. In this way, the display function of the display device is guaranteed. In one of the exemplary embodiments, the backlight source may be a light emitting diode (LED). In one of the exemplary embodiments, the backlight source may be a Mini LED. In one of the exemplary embodiments, the backlight source may be a QD. In this way, even if the backlight source is a MiniLED or QD, the occurrence of the rainbow pattern problem can still be effectively avoided, thereby improving the display effect.

[0068] In the specific implementation process, the display device provided by the embodiment of the utility model can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, a navigator, etc. Other essential components of the display device should be understood by ordinary technicians in the field, and will not be described here, nor should they be used as limitations of the utility model.

[0069] The embodiment of the utility model provides a display device, which includes a first polarizer 10 and a second polarizer 20 arranged opposite to each other, and a display panel 30 located between the first polarizer 10 and the second polarizer 20; wherein the first polarizer 10 is located on the light-emitting side of the display panel 30, and the first polarizer 10 includes a first polarizing functional layer 11 and a first protective layer 12 located on the side of the first polarizing functional layer 11 away from the display panel 30; the second polarizer 20 includes a second polarizing functional layer 21 and a second protective layer 22 located on the side of the second polarizing functional layer 21 away from the display panel 30; the first protective layer 12 and the second protective layer 22 are made of different materials. That is, the materials of the protective layers located on the side away from the display panel 30 in the first polarizer 10 and the second polarizer 20 are different. In this way, when the material of the second protective layer 22 located on the side of the second polarizing functional layer 21 away from the display panel 30 in the second polarizer 20 is set to a material other than PET, the problem of rainbow defects is effectively avoided, and the display effect of the display device is guaranteed.

[0070] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0071] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A display device, characterized in that: include: A first polarizer and a second polarizer arranged opposite to each other, and a display panel located between the first polarizer and the second polarizer; Among them, the first polarizer is located on the light-emitting side of the display panel, and the first polarizer includes a first polarizing functional layer and a first protective layer located on the side of the first polarizing functional layer away from the display panel; the second polarizer includes a second polarizing functional layer and a second protective layer located on the side of the second polarizing functional layer away from the display panel; the first protective layer and the second protective layer are made of different materials.

2. The display device according to claim 1, wherein: The second protective layer is any one of PMMA, COP and NRT TAC.

3. The display device according to claim 2, wherein: The first protective layer is any one of PET, PMMA, COP, and NRTTAC.

4. The display device according to any one of claims 1 to 3, characterized in that: The first protective layer has higher water resistance than the second protective layer.

5. The display device according to claim 4, characterized in that The first polarizer further includes a third protective layer located on a side of the first polarizing functional layer close to the display panel, and the second polarizer further includes a fourth protective layer located on a side of the second polarizing functional layer close to the display panel.

6. The display device according to claim 5, characterized in that The first protective layer has higher water resistance than the third protective layer.

7. The display device according to claim 5 or 6, characterized in that: The third protective layer is any one of PMMA, COP and NRTTAC.

8. The display device according to claim 5 or 6, characterized in that: The fourth protective layer is any one of PMMA, COP and NRTTAC.

9. The display device according to any one of claims 1 to 3, 5 and 6, characterized in that: The optical axis of the first polarizer and the optical axis of the second polarizer are arranged perpendicular to each other.

10. The display device according to any one of claims 1 to 3, 5 and 6, characterized in that: The first protective layer is PET, and the optical axis angle of the first protective layer is 45°, and the phase difference of the first protective layer is 1 / 4 wavelength.

11. The display device according to any one of claims 1 to 3, 5 and 6, characterized in that: It also includes a backlight source located on the side of the second polarizer away from the display panel, and the backlight source is any one of LED, Mini LED, and QD.

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