CN215932323U - Display panel - Google Patents

Abstract

The utility model discloses a display panel. The display panel comprises a backlight module and a first polarizer. The backlight module comprises a light guide plate, a reflector plate and a diffusion plate. The light guide plate is used for guiding light. The reflector plate is used for reflecting the light guided by the light guide plate. The diffusion sheet is used for diffusely reflecting the light rays reflected by the reflection sheet. The first polarizer is connected with the diffusion sheet. Wherein the reflector plate, the light guide plate, the diffusion sheet and the first polarizer are sequentially arranged from bottom to top.

Description

Display panel

Technical Field

The utility model relates to the field of display panels, in particular to an anti-glare display panel technology.

Background

The consumer electronics become more and more popular with the development of science and technology, for example, products such as mobile phones, tablets, computers and the like are visible everywhere, and the consumer electronics are not used in education, entertainment and daily life. And because of the vigorous development of consumer electronics and the diversified progress of functions, the dependence degree of users on the consumer electronics is greatly improved, and more time is spent on watching the screen of the electronic product. However, the high-brightness electronic product screen may generate glare (glare), which is dazzling light, and may cause the brightness in the visual field of human eyes to greatly exceed the range that the eyes can adapt to, resulting in asthenopia, damage, even affect mood, etc. Therefore, long-term use of high brightness products with LED backlights may result in the eye health of the user being compromised. However, in response to the development of technology, users often need to watch the screen for a long time, such as video conferences and video lectures, and users with severe products also watch the display screen for a long time, so the issue of anti-glare must be paid attention.

Based on the foregoing, various anti-glare products are produced on the market correspondingly, so as to reduce direct irradiation damage of the light source to the eyes of the user, and reduce fatigue of the eyes to a certain extent. However, in the conventional anti-glare technology, more light sources are directly emitted into the eyes of the user, and the user may still feel tired and impaired in vision if the user needs to watch the screen of the electronic product for a longer time. Therefore, in order to solve the fatigue and damage of human eyes caused by watching the screen of the electronic product for a long time, it is necessary to provide a more advanced anti-glare technology to improve the user experience.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to a novel anti-glare display panel having excellent anti-glare capability to solve the problems of the prior art.

In detail, an embodiment of the present invention provides a display panel. The display panel comprises a backlight module and a first polarizer. The backlight module comprises a light guide plate, a reflecting sheet and a diffusion sheet. The light guide plate is used for guiding light. The reflector plate is used for reflecting the light guided by the light guide plate. The diffusion sheet is used for diffusely reflecting the light rays reflected by the reflection sheet. The first polarizer is connected with the at least one diffusion sheet. Wherein the reflector plate, the light guide plate, the diffusion sheet and the first polarizer are sequentially arranged from bottom to top.

According to an embodiment of the present invention, the reflective sheet includes a light diffusion layer formed by coating a plurality of diffusion particles on the reflective sheet.

According to an embodiment of the present invention, the reflective sheet has a specular reflection layer, and the light diffusion layer is disposed on the specular reflection layer.

According to an embodiment of the utility model, the specular reflective layer is made of silver or aluminum.

According to an embodiment of the present invention, the diffusion sheet includes a substrate and a light diffusion surface. The light diffusion surface is arranged on one surface of the base material and is formed by a plurality of diffusion particles with different particle sizes.

According to an embodiment of the present invention, the diffusion sheet further includes an adhesion prevention layer. The adhesion preventing layer is arranged on the other surface of the substrate opposite to the light diffusion surface and is used for preventing the light diffusion surface from adhering to the light guide plate.

According to an embodiment of the present invention, the adhesion preventing layer is formed of a plurality of diffusion particles having substantially equal sizes.

According to an embodiment of the present invention, the diffusion particles are made of a transparent resin.

According to an embodiment of the present invention, the display panel further includes a thin film transistor array substrate, a color filter, and a second polarizer. The thin film transistor array substrate is arranged above the first polarizer of the backlight module. The color filter is arranged above the thin film transistor array substrate, and a liquid crystal layer is arranged between the color filter and the thin film transistor array substrate. The second polarizer is provided with an anti-dazzle film layer and is arranged above the color filter.

According to an embodiment of the present invention, the display panel further includes a thin film transistor array substrate, a color filter, and a touch panel. The thin film transistor array substrate is arranged above the first polarizer of the backlight module. The color filter is arranged above the thin film transistor array substrate, and a liquid crystal layer is arranged between the color filter and the thin film transistor array substrate. The touch panel is provided with an anti-dazzle film layer and is arranged above the color filter.

Through the embodiment, the display panel can improve the diffuse reflection effect on light rays to the maximum extent. Compared with the traditional anti-glare scheme, the display panel disclosed by the utility model has more outstanding anti-glare capability, can protect the eyes of a user to the maximum extent, and reduces discomfort such as eye fatigue and damage caused by long-time use of the display product. In addition, the display panel disclosed by the utility model can also be applied to electronic products with various sizes, such as large screens or handheld electronic devices, and the direct influence of a product backlight source is reduced when a user watches images or touches the products, so that the quality and the competitiveness of the products can be remarkably improved.

For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the utility model, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the utility model.

Drawings

Fig. 1 is a schematic view illustrating a display panel according to an embodiment of the utility model.

Fig. 2 is a schematic view illustrating a reflector structure of a display panel according to an embodiment of the utility model.

Fig. 3 is a schematic view illustrating a diffusion sheet structure of a display panel according to an embodiment of the utility model.

Fig. 4 is a schematic view illustrating a display panel according to an embodiment of the utility model.

Fig. 5 is a schematic view illustrating a display panel according to an embodiment of the utility model.

Fig. 6 is a schematic view illustrating a display panel according to an embodiment of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, shall fall within the scope of protection of the present invention. Moreover, the terms "first" and "second" used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. In addition, directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", "horizontal", "vertical", etc., refer to directions of the attached drawings only. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. The drawings are merely schematic representations, not intended to be drawn to scale. As used herein, an "electrical connection" or an "electrical coupling" may refer to two or more elements being in physical or indirect electrical contact.

The term (terms) used throughout the specification and claims has the ordinary meaning as commonly understood in the art, in the disclosure herein and in the specific disclosure herein, unless otherwise indicated. Certain terms used to describe the present disclosure will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present disclosure.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel 100 according to an embodiment of the utility model. The display panel 100 may be, for example, an electronic product for displaying images, such as a liquid crystal television, a notebook computer, a handheld tablet computer, and a mobile phone, and the size of the application product is not limited. The display panel 100 is generally formed by sequentially disposing a backlight module 110, a thin film transistor Array Substrate (TFT Array Substrate)130, a liquid crystal layer 160, a Color Filter 180, and a touch panel 190 from bottom to top. Further, the backlight module 110 may be subdivided into a Reflector (Reflector)112, a Light Guide Plate 114 (LGP), a Diffuser (Diffuser)116, and the like, which are connected in sequence, and the Light Guide Plate 114 is used to Guide the Light of the Light source 1142 to the backlight module to form a surface Light source. It should be noted that the diffuser 116 may be a single layer or a plurality of layers of the same repeating structure. For example, the backlight module 110 may have a single diffusion sheet 116, or the backlight module 110 may have more than two diffusion sheets 116, and the present invention is not intended to be limited thereto. Preferably, in the embodiment of fig. 1, the backlight module 110 is described as having three diffusion sheets 116.

In addition, in the conventional display panel structure, the backlight module must be provided with a brightness enhancement film, i.e., the backlight module structure must be sequentially provided with a diffusion sheet, a brightness enhancement film, a diffusion sheet and other three-layer structures. However, the present invention is not provided with a brightness enhancement film, but directly uses a diffusion sheet instead of the brightness enhancement film. That is, the present invention discloses the backlight module 110 is constructed by using three diffusion sheets 116, wherein the three diffusion sheets 116 are sequentially connected to each other and disposed above the light guide plate 114. In addition, because the brightness enhancement film is not arranged to enhance light, the light is softer and not dazzling, and more diffuse reflection is generated in the backlight module 110 by penetrating the three-layer diffusion sheet 116, so that great thinning and soft light are achieved, and the anti-glare effect is more prominent. The detailed structure of the diffusion plate 116 will be described later with reference to fig. 3.

In view of the above embodiments, in fig. 1, a first Polarizer (Polarizer)120 is disposed between the backlight module 110 and the tft array substrate 130, and a second Polarizer 122 is disposed between the color filter 180 and the touch panel 190. The first polarizer 120 and the second polarizer 122 are used for polarizing the light source of the backlight module 110 to control the polarization direction of the light, so that the display panel 100 can obtain the variation of bright and dark display by an external electric field. The backlight module 110 is connected to the first polarizer 120 through the top diffusion sheet 116 of the three diffusion sheets 116.

The liquid crystal layer 160 is formed by injecting liquid crystal between the thin film transistor array substrate 130 and the color filter 180. In detail, the upper and lower edges of the liquid crystal Layer 160 are respectively provided with an Alignment film (Alignment Layer)150 and an Alignment film 152, and the Alignment films 150 and 152 are used for controlling the arrangement direction of the liquid crystal molecules in the liquid crystal Layer 160 and providing a pretilt angle of the liquid crystal so that the liquid crystal molecules can achieve a good rotation effect. A reflective layer 140 is disposed between the alignment film 150 and the thin film transistor array substrate 130 under the liquid crystal layer 160, and an electrode substrate 170 is disposed between the alignment film 152 and the color filter 180 on the liquid crystal layer 160, wherein the electrode substrate 170 is, for example, an Indium Tin Oxide (ITO) film, and is used to control a deflection degree of liquid crystal, so as to form gray scale display for light passing through the liquid crystal layer 160, and further form a color image on the touch panel 190 through the color filter 180.

In more detail, referring to fig. 2, fig. 2 is a schematic structural diagram illustrating a reflector 112 of a display panel 100 according to an embodiment of the utility model. The reflective sheet 112 includes a substrate 112a, a specular reflective layer 112b, and a light diffusion layer 112 c. In one embodiment, the substrate 112a is made of Polyethylene Terephthalate (PET), for example, and the specular reflection layer 112b is made of silver or aluminum, for example. The light diffusion layer 112c is formed by coating a plurality of diffusion particles 1122 on the specular reflection layer 112b of the reflection sheet 112 by, for example, plating or adhesion. In one embodiment, the diffusion particles 1122 are made of a transparent acrylic resin material, for example, and have a plurality of particles with different particle sizes, as shown in fig. 2. For example, the diffusion particles 1122 may include a combination of three particle sizes, such as a large-particle-size diffusion particle, a medium-particle-size diffusion particle, and a small-particle-size diffusion particle. It should be understood that the size and number of the diffusion particles 1122 depicted in FIG. 2 are for illustration purposes only and are not actual sizes, numbers, and configurations. In addition, the pattern configuration of the diffusion particles 1122 can be optimized according to actual requirements to achieve different diffuse reflection effects, which is not limited in the present invention.

By the configuration of the reflective sheet 112 of the display panel 100 in the embodiment of fig. 2, the light guided by the light guide plate 114 can be reflected by the specular reflective layer 112b and further atomized by the light diffusion layer 112 c. That is, the reflective sheet 112 has both functions of reflecting light and diffusely reflecting light. Therefore, the light which is directly radiated into eyes can be reduced, and the effect of diffuse reflection is maximized, so that the effect of better protecting the eyes of a user is achieved.

Referring to fig. 3, fig. 3 is a schematic structural diagram of each diffusion sheet 116 in the backlight module 110 of the display panel 100 according to an embodiment of the utility model. The diffusion sheet 116 of the backlight module 110 includes a base material 116a, a light diffusion surface 116b, and an adhesion preventing layer 116 c. In one embodiment, the substrate 116a is made of polyethylene terephthalate (PET) or Polycarbonate (PC), for example. The light diffusion surface 116b is coated or adhered with a plurality of diffusion particles 1162 with different particle sizes on the top surface of the substrate 116a, as shown in fig. 3. The adhesion preventing layer 116c is formed by coating or adhering a plurality of diffusion particles 1164 having substantially the same or similar particle size to the bottom surface of the substrate 116a, as shown in fig. 3. Like the diffusion particles 1122 in the reflective sheet 112, the diffusion particles 1162 and 1164 are made of transparent acrylic resin, for example. It should be understood that the sizes and numbers of the diffusion particles 1162 and 1164 in fig. 3 are for illustration purposes only and are not actual sizes, numbers, and configurations.

Further, the light diffusing surface 116b of the diffusing sheet 116 of the backlight module 110 employs a plurality of diffusing particles 1162 with different particle sizes, so as to achieve maximum diffuse reflection of light and achieve an anti-glare effect. Through the continuous arrangement of the three-layer diffusion sheet 116, light is subjected to three times of diffuse reflection, and the anti-glare effect of the display panel can be remarkably improved, so that the uncomfortable feelings of eye fatigue and the like caused by glare when a user uses the display panel 100 for a long time are reduced to the greatest extent, and the health of the eyes of the user is further ensured.

In the above embodiment, the adhesion preventing layer 116c is provided to prevent the diffusion sheet 116 and the light guide plate 114 from adhering to each other to scratch the light guide plate 114. The light rays guided by the light guide plate 114 can be concentrated and uniformly projected onto the light diffusion surface 116b of the upper layer by using a plurality of diffusion particles 1164 with substantially equal or similar sizes, so as to further diffuse, reflect and atomize the light rays. Wherein the coating density of the diffusion particles 1164 of the adhesion preventing layer 116c is lower than the coating density of the diffusion particles 1162 of the light diffusing surface 116 b.

In the above embodiment, the backlight module 110 guides the light through the arrangement of the reflective sheet 112 having the light diffusion layer 112c and the plurality of diffusion sheets 116 having the light diffusion surface 116b, so that the light can be processed by very good diffuse reflection, i.e. the display panel 100 can have very good anti-glare effect.

In another embodiment of the utility model, the display panel 100 may be matched with the second polarizer 122 having an anti-glare effect, so as to further achieve a better anti-glare and eye-protection function. Referring to fig. 4, fig. 4 is a schematic structural diagram of a display panel 400 according to an embodiment of the utility model. Like the display panel 100, the display panel 400 is generally formed by sequentially disposing the backlight module 110, the tft array substrate 130, the liquid crystal layer 160, the color filter 180, and the touch panel 190 from bottom to top. The backlight module 110 can be subdivided into a reflector 112, a light guide plate 114, a diffuser 116, etc. connected in sequence. The light guide plate 114 is used for guiding the light of the light source 1142. A first polarizer 120 is disposed between the backlight module 110 and the tft array substrate 130, and a second polarizer 122 is disposed between the color filter 180 and the touch panel 190. The liquid crystal layer 160 is formed by injecting liquid crystal between the thin film transistor array substrate 130 and the color filter 180. The liquid crystal layer 160 is provided at upper and lower edges thereof with alignment films 150 and 152, respectively. A reflective layer 140 is disposed between the alignment film 150 under the liquid crystal layer 160 and the thin film transistor array substrate 130, and an electrode substrate 170 is disposed between the alignment film 152 on the liquid crystal layer 160 and the color filter 180. The reflective sheet 112 includes a substrate 112a, a specular reflective layer 112b, and a light diffusion layer 112 c. The diffusion sheet 116 is composed of a base material 116a, a light diffusion surface 116b, and an adhesion preventing layer 116 c. The detailed structure and function of the reflective sheet 112, the diffusion sheet 116, and other components are as described above with reference to fig. 2 and 3, and are not described herein again.

Unlike the display panel 100, the second polarizer 122 of the display panel 400 further has an anti-glare film layer 122 a. The anti-glare film layer 122a is disposed on one surface of the second polarizer 122, for example, by a coating or adhesion method. It should be understood that the anti-glare film layer 122a shown in fig. 4 is a zigzag-like shape, which is not an actual shape, and is only for illustration. The second polarizer 122 plated with the anti-glare film layer 122a can further superimpose a better anti-glare capability on the display panel 400 under the condition of the original display panel 100 having the outstanding anti-glare effect.

In addition, in another embodiment of the present invention, the display panel 100 can also be matched with a touch panel with an anti-glare effect, so as to further achieve a better anti-glare and eye-protection function. Referring to fig. 5, fig. 5 is a schematic structural diagram of a display panel 500 according to an embodiment of the utility model. Like the display panel 100, the display panel 500 is generally formed by sequentially disposing the backlight module 110, the tft array substrate 130, the liquid crystal layer 160, the color filter 180, and the touch panel 190 from bottom to top. The backlight module 110 can be subdivided into a reflector 112, a light guide plate 114, a diffuser 116, etc. connected in sequence. The light guide plate 114 is used for guiding the light of the light source 1142. A first polarizer 120 is disposed between the backlight module 110 and the tft array substrate 130, and a second polarizer 122 is disposed between the color filter 180 and the touch panel 190. The liquid crystal layer 160 is formed by injecting liquid crystal between the thin film transistor array substrate 130 and the color filter 180. The liquid crystal layer 160 is provided at upper and lower edges thereof with alignment films 150 and 152, respectively. A reflective layer 140 is disposed between the alignment film 150 under the liquid crystal layer 160 and the thin film transistor array substrate 130, and an electrode substrate 170 is disposed between the alignment film 152 on the liquid crystal layer 160 and the color filter 180. The reflective sheet 112 includes a substrate 112a, a specular reflective layer 112b, and a light diffusion layer 112 c. The diffusion sheet 116 is composed of a base material 116a, a light diffusion surface 116b, and an adhesion preventing layer 116 c. The detailed structure and function of the reflective sheet 112, the diffusion sheet 116, and other components are as described above with reference to fig. 2 and 3, and are not described herein again.

Unlike the display panel 100, the touch panel 190 of the display panel 500 further has an anti-glare film layer 190 a. The touch panel 190 generates the anti-glare film layer 190a by, for example, plating or etching. It should be understood that the anti-glare film layer 190a in fig. 5 has a zigzag shape, which is not an actual shape, and is only for illustration. The touch panel 190 with the anti-glare film layer 190a can further add a better anti-glare capability to the display panel 500 under the condition that the original display panel 100 already has the outstanding anti-glare effect.

Based on the above, it can be seen that the display panel 100 can also be matched with the second polarizer 122 having the anti-glare film 122a and the touch panel 190 having the anti-glare film 190a at the same time, as shown in fig. 6, fig. 6 is a schematic structural view of a display panel 600 according to an embodiment of the utility model. Like the display panel 100, the display panel 600 is generally formed by sequentially disposing the backlight module 110, the tft array substrate 130, the liquid crystal layer 160, the color filter 180, and the touch panel 190 from bottom to top. The backlight module 110 can be subdivided into a reflector 112, a light guide plate 114, a diffuser 116, etc. connected in sequence. The light guide plate 114 is used for guiding the light of the light source 1142. A first polarizer 120 is disposed between the backlight module 110 and the tft array substrate 130, and a second polarizer 122 is disposed between the color filter 180 and the touch panel 190. The liquid crystal layer 160 is formed by injecting liquid crystal between the thin film transistor array substrate 130 and the color filter 180. The liquid crystal layer 160 is provided at upper and lower edges thereof with alignment films 150 and 152, respectively. A reflective layer 140 is disposed between the alignment film 150 under the liquid crystal layer 160 and the thin film transistor array substrate 130, and an electrode substrate 170 is disposed between the alignment film 152 on the liquid crystal layer 160 and the color filter 180. The reflective sheet 112 includes a substrate 112a, a specular reflective layer 112b, and a light diffusion layer 112 c. The diffusion sheet 116 is composed of a base material 116a, a light diffusion surface 116b, and an adhesion preventing layer 116 c. The detailed structure and function of the reflective sheet 112, the diffusion sheet 116, and other components are as described above with reference to fig. 2 and 3, and are not described herein again.

Unlike the display panel 100, the display panel 400, and the display panel 500, the display panel 600 has both the second polarizer 122 having the anti-glare film layer 122a and the touch panel 190 having the anti-glare film layer 190 a. By the anti-glare film layer 122a and the anti-glare film layer 190a, the display panel 600 can further add more excellent anti-glare capability under the condition of the outstanding anti-glare effect of the original display panel 100.

Through the implementation of the embodiment, the display panel disclosed by the utility model can improve the diffuse reflection atomization effect on light rays to the greatest extent, so that the light rays are greatly refined and soft. Compared with the traditional anti-glare scheme, the display panel disclosed by the utility model has more outstanding anti-glare capability and a more delicate and softer screen display effect, can protect the eyes of a user to the maximum extent, and reduces the discomfort such as eye fatigue and damage caused by long-time use of the display product. Therefore, when the user uses the related product matched with the display panel disclosed by the utility model, the user can have more comfortable use experience and can use the product for a longer time.

In summary, although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the preferred embodiments, and those skilled in the art can modify and modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features without departing from the spirit and scope of the present invention, and these modifications or substitutions should be included in the protection scope of the present invention. The protection scope of the utility model is subject to the claims.

Claims (10)

1. A display panel, comprising:

a backlight module, comprising:

a light guide plate for guiding light;

a reflecting sheet for reflecting the light guided by the light guide plate; and

a diffusion sheet for diffusely reflecting the light reflected by the reflection sheet; and

the first polaroid is connected with the diffusion sheet;

wherein the reflector plate, the light guide plate, the diffusion sheet and the first polarizer are sequentially arranged from bottom to top.

2. The display panel of claim 1, wherein the reflective sheet comprises a light diffusion layer formed by coating a plurality of diffusion particles on the reflective sheet for diffusely reflecting the light guided by the light guide plate.

3. The display panel of claim 2, wherein the reflective sheet has a specular reflective layer, and the light diffusion layer is disposed on the specular reflective layer.

4. The display panel of claim 3, wherein the specular reflective layer is made of silver or aluminum.

5. The display panel of claim 1, wherein the diffusion sheet comprises:

a substrate; and

the light diffusion surface is arranged on one surface of the base material and is formed by a plurality of diffusion particles with different particle sizes.

6. The display panel of claim 5, wherein the diffuser further comprises:

and the adhesion preventing layer is arranged on the other surface of the base material opposite to the light diffusion surface and is used for preventing the light diffusion surface from adhering to the light guide plate.

7. The display panel according to claim 6, wherein the adhesion preventing layer is formed of a plurality of diffusion particles having substantially equal sizes.

8. The display panel according to any one of claims 2 to 7, wherein the diffusion particles are made of a transparent resin.

9. The display panel of any one of claims 1-7, further comprising:

the thin film transistor array substrate is arranged above the first polarizer of the backlight module;

the color filter is arranged above the thin film transistor array substrate, and a liquid crystal layer is arranged between the color filter and the thin film transistor array substrate; and

and the second polaroid is provided with an anti-dazzle film layer and is arranged above the color filter.

10. The display panel of any one of claims 1-7, further comprising:

the thin film transistor array substrate is arranged above the first polarizer of the backlight module;

the color filter is arranged above the thin film transistor array substrate, and a liquid crystal layer is arranged between the color filter and the thin film transistor array substrate; and

and the touch panel is provided with an anti-dazzle film layer and is arranged above the color filter.

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