CN110376803A - Display panel and display device - Google Patents

Abstract

The invention discloses a display panel and a display device, which relate to the field of display technology and include a color filter substrate and an array substrate oppositely arranged; a first polarizer located on a side of the color filter substrate away from the array substrate; a second polarizer located on the array substrate The side of the substrate away from the color filter substrate; the angle of the absorption axis of the first polarizer and the angle of the absorption axis of the second polarizer are not 0° or 90°; the array substrate includes a pixel electrode layer; the pixel electrode layer includes a plurality of Pixel electrodes arranged in one direction and a second direction; each pixel electrode includes a first connection part and a plurality of strip branches connected to the first connection part and parallel to each other, the first connection part extends along the second direction, and the plurality of strip branches The bar-shaped branches are located on the same side of the first connecting part along the first direction; the angle between the bar-shaped branches and the first connecting part is β, and 0°<β<90°. In this way, through the special design of the pixel electrodes and polarizers, the readability of the display panel can be improved when wearing sunglasses, which is beneficial to cost savings.

Description

Display panel and display device

technical field

The present invention relates to the field of display technology, and more specifically, to a display panel and a display device.

Background technique

With the development of science and technology, flat-panel display devices such as liquid crystal display areas are widely used in mobile phones, televisions, personal digital assistants, notebook computers, In various consumer electronic products such as desktop computers, it has become the mainstream of display devices.

Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a housing, a liquid crystal display panel disposed in the housing, and a backlight module disposed in the housing. A traditional liquid crystal display panel is formed by laminating an array substrate and a color filter substrate. Pixel electrodes and common electrodes are formed on the opposite inner sides of the array substrate and color filter substrate, and liquid crystal is poured between the array substrate and the color filter substrate. , its working principle is to control the rotation of liquid crystal molecules in the liquid crystal layer by applying a driving voltage between the pixel electrode and the common electrode, and use the electric field formed between the pixel electrode and the common electrode to refract the light of the backlight module to produce a picture .

In the outdoor environment, many users have the habit of wearing polarized sunglasses to block the glare of sunlight, and observe the images on the LCD screen through the polarized sunglasses. Polarized sunglasses usually include a polarizing element with a transmission axis along the horizontal or vertical direction, and a black screen is very likely to occur in the landscape/portrait (horizontal/vertical) mode. In order to ensure that people can use the display screen normally when wearing polarized sunglasses, a sunglass POL (sunglass polarizer) is usually added to the display panel to make the linearly polarized light emitted from the screen into circular polarized light, avoiding the phenomenon of polarized light when wearing polarized sunglasses. In the case of a black screen in landscape/portrait (horizontal/vertical) mode. However, this kind of sunglass POL is expensive, which is higher than ordinary POL, which is not conducive to cost saving.

Contents of the invention

In view of this, the present invention provides a display panel and a display device. Through the special design of the pixel electrodes and polarizers, it is beneficial to improve the readability of the display panel when wearing sunglasses, and at the same time it is beneficial to save the cost of the display panel and the display device. Cost of production.

In a first aspect, the present application provides a display panel, including:

The color filter substrate and the array substrate arranged oppositely, and the liquid crystal filled between the color filter substrate and the array substrate;

a first polarizer located on a side of the color filter substrate away from the array substrate;

a second polarizer located on a side of the array substrate away from the color filter substrate;

The absorption axis angle of the first polarizer is α1, and the absorption axis angle of the second polarizer is α2, wherein α1≠0°, α1≠90°, and α2≠0°, α2≠90°;

The array substrate includes a base substrate and a pixel electrode layer located on the side of the base substrate facing the color filter substrate; the pixel electrode layer includes a plurality of pixel electrodes arranged along the first direction and the second direction;

Each of the pixel electrodes includes a first connection portion and a plurality of strip branches connected to the first connection portion and parallel to each other, the first connection portion extends along the second direction, and the plurality of strip branches Located on the same side of the first connecting portion along the first direction; the angle between the strip branch and the first connecting portion is β, 0°<β<90°; the first direction Intersects the second direction.

Optionally, where:

The absorption axis angles of the first polarizer and the second polarizer satisfy: 0°<α1<90°, α2=α1+90°;

Alternatively, the absorption axis angles of the first polarizer and the second polarizer satisfy:

0°<α2<90°, α1=α2+90°.

Optionally, where:

The absorption axis angles of the first polarizer and the second polarizer satisfy: 30°≤α1≤60°, α2=α1+90°;

Alternatively, the absorption axis angles of the first polarizer and the second polarizer satisfy: 30°≤α2≤60°, α1=α2+90°.

Optionally, where:

The absorption axis angles of the first polarizer and the second polarizer satisfy: α1=45°, α2=135°; or, α2=45°, α1=135°.

Optionally, where:

The angle β between the strip branch and the first connecting portion satisfies: 20°<β<70°.

Optionally, where:

The included angle β between the strip branch and the first connecting portion satisfies: β=55°.

Optionally, where:

The alignment direction of the liquid crystal is parallel to the direction of the absorption axis of the first polarizer or the second polarizer.

Optionally, where:

The display panel further includes a common electrode and a plurality of sub-pixel units arranged along the first direction and the second direction, and the pixel electrode layer is located on a side of the common electrode layer away from the base substrate ; Each of the sub-pixel units includes one of the pixel electrodes;

The array substrate further includes an array layer, the array layer is located on the side of the common electrode layer facing the base substrate, the array layer includes a plurality of drive transistors, and in the same sub-pixel unit, the The drains of the driving transistors are electrically connected to the pixel electrodes in a one-to-one correspondence.

Optionally, where:

The display panel also includes a plurality of fingerprint recognition sensors integrated in the array layer;

The color filter substrate includes a black matrix layer, the black matrix layer defines a plurality of pixel openings and a plurality of fingerprint identification openings, color resistance is provided in the pixel openings, and the fingerprint identification openings and the fingerprint identification sensor are arranged in the Substrate The orthographic projection of the plane in which the substrate lies overlaps.

Optionally, where:

The sub-pixel unit includes an opening area and a non-opening area, the pixel opening is located in the opening area; the orthographic projection of the fingerprint identification opening on the plane where the base substrate is located is located in the non-opening area.

In a second aspect, the present application further provides a display device, including a display panel, where the display panel is the display panel provided in the present application.

Compared with the prior art, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:

In the display panel and the display device provided in the embodiments of the present application, the angles of the absorption axes of the first polarizer and the second polarizer are improved, so that the angles of the absorption axes of the first polarizer and the second polarizer are all different. It is 0° or 90°, and at the same time cooperates with the special structural design of the pixel electrode, that is, the pixel electrode includes a first connecting portion extending along the second direction and a plurality of strip-shaped branches connected to it, and each strip-shaped branch is parallel to each other and connected to the first The included angle between the connecting parts is 0°<β<90°. Since polarized sunglasses usually include a polarizing element with a transmission axis along the horizontal or vertical direction, this application adjusts the angle of the absorption axes of the first polarizer and the second polarizer in the display panel to be non-0° and non-90° °, combined with the above-mentioned special structural design of the pixel electrode, when observing the screen of the display panel while wearing polarized sunglasses, it can effectively avoid the black screen in the landscape/portrait (horizontal/vertical) mode, and there is no need to use the display panel Therefore, while improving the readability of the display panel when wearing sunglasses, it is also beneficial to save the production cost of the display panel and the display device.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned technical effects at the same time.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

FIG. 1 is a top view of a display panel provided by an embodiment of the present application;

Fig. 2 shows a kind of AA' sectional view of the display panel provided in Fig. 1;

Fig. 3 shows a kind of BB' sectional view of the array substrate in the display panel provided in Fig. 1;

FIG. 4 is a schematic structural diagram of a pixel electrode provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of another structure of a pixel electrode provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of an arrangement of sub-pixel units in a display panel provided by an embodiment of the present application;

Fig. 7 shows another kind of AA' sectional view of the display panel provided by the embodiment shown in Fig. 1;

FIG. 8 is a top view of a sub-pixel unit in a display panel provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a display device provided by an embodiment of the present application.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the prior art, in an outdoor environment, many users have the habit of wearing polarized sunglasses to block the glare of sunlight, and observe images on a liquid crystal display screen through the polarized sunglasses. Polarized sunglasses usually include a polarizing element with a transmission axis along the horizontal or vertical direction, and a black screen is very likely to occur in a landscape/portrait (horizontal/vertical) mode. In order to ensure that people can use the display screen normally when wearing polarized sunglasses, a sunglass POL (sunglass polarizer) is usually added to the display panel to make the linearly polarized light emitted from the screen into circular polarized light, avoiding the phenomenon of polarized light when wearing polarized sunglasses. In the case of a black screen in landscape/portrait (horizontal/vertical) mode. However, this kind of sunglassesPOL is expensive, about $0.2/pcs more expensive than ordinary POL, which is not conducive to cost saving.

In view of this, the present invention provides a display panel and a display device. Through the special design of the pixel electrodes and polarizers, it is beneficial to improve the readability of the display panel when wearing sunglasses, and at the same time it is beneficial to save the cost of the display panel and the display device. Cost of production. The display panel provided by this application includes:

The color filter substrate and the array substrate arranged oppositely, and the liquid crystal filled between the color filter substrate and the array substrate;

a first polarizer located on a side of the color filter substrate away from the array substrate;

a second polarizer located on a side of the array substrate away from the color filter substrate;

The absorption axis angle of the first polarizer is α1, and the absorption axis angle of the second polarizer is α2, wherein α1≠0°, α1≠90°, and α2≠0°, α2≠90°;

The array substrate includes a base substrate and a pixel electrode layer located on the side of the base substrate facing the color filter substrate; the pixel electrode layer includes a plurality of pixel electrodes arranged along the first direction and the second direction;

Each of the pixel electrodes includes a first connection portion and a plurality of strip branches connected to the first connection portion and parallel to each other, the first connection portion extends along the second direction, and the plurality of strip branches Located on the same side of the first connecting portion along the first direction; the angle between the strip branch and the first connecting portion is β, 0°<β<90°; the first direction Intersects the second direction.

The following will describe in detail with reference to the drawings and specific embodiments.

Figure 1 shows a top view of the display panel provided by the embodiment of the present application, Figure 2 shows an AA' cross-sectional view of the display panel provided in Figure 1, and Figure 3 shows the display panel provided in Figure 1 A BB' cross-sectional view of the array substrate in the panel. FIG. 4 is a schematic structural diagram of the pixel electrode provided by the embodiment of the present application. Please refer to FIGS. 1 to 4. The present application provides a display panel 100, including :

The color filter substrate 20 and the array substrate 10 arranged oppositely, and the liquid crystal 30 filled between the color filter substrate 20 and the array substrate 10;

The first polarizer 31 is located on the side of the color filter substrate 20 away from the array substrate 10;

The second polarizer 32 is located on the side of the array substrate 10 away from the color filter substrate 20;

The absorption axis angle of the first polarizer 31 is α1, and the absorption axis angle of the second polarizer 32 is α2, wherein, α1≠0°, α1≠90°, and α2≠0°, α2≠90°;

The array substrate 10 includes a base substrate 11 and a pixel electrode layer 80 located on the side of the base substrate 11 facing the color filter substrate 20; the pixel electrode layer 80 includes a plurality of pixel electrodes 50 arranged along the first direction and the second direction;

Please refer to FIG. 4 , each pixel electrode 50 includes a first connection portion 51 and a plurality of strip branches 52 connected to the first connection portion 51 and parallel to each other. The first connection portion 51 extends along the second direction, and the plurality of strip branches 52 is located on the same side of the first connecting portion 51 along the first direction; the angle between the strip branch 52 and the first connecting portion 51 is β, 0°<β<90°; the first direction intersects the second direction.

It should be noted that Figure 1 only schematically illustrates the structure of the display panel, and does not limit the actual shape and size. Figure 2 only schematically shows a relative positional relationship between the color filter substrate 20, the array substrate 10, the first polarizer 31 and the second polarizer 32, and does not represent the actual film layer structure and size, as shown in Figure 2 On the basis of what is shown, the display panel 100 may also include other film layer structures, which are not specifically limited in this application. In addition, FIG. 2 and FIG. 4 only schematically illustrate the structure and shape of the pixel electrode 50 , and do not represent actual dimensions.

Specifically, referring to FIG. 1 to FIG. 4 , in the display panel 100 provided by the embodiment of the present application, the angle of the absorption axis of the first polarizer 31 located on the side of the color filter substrate 20 away from the array substrate 10 is adjusted, At the same time, the angle of the absorption axis located on the side of the array substrate 10 away from the color filter substrate 20 is also adjusted, so that both of them are not 0° and not 90°, but are set to other angles than 0° and 90° . Correspondingly, while improving the angles of the absorption axes of the first polarizer 31 and the second polarizer 32, the present application also improves the structure of the pixel electrode 50, please refer to FIG. 4, the pixel electrode in this application 50 includes a first connecting portion 51 and a plurality of strip-shaped branches 52 respectively connected to the first connecting portion 51. The first connecting portion 51 extends along the second direction. In the viewing angle shown in FIG. 4 , the first connecting portion 51 is located at each The left position of the strip branches 52; each strip branch 52 is parallel to each other, and the included angle with the first connecting portion 51 satisfies 0°<β<90°, so that the orientation direction of the liquid crystal 30 molecules is neither 0° Also not 90°. Therefore, based on the above-mentioned design of the first polarizer 31, the second polarizer 32 and the pixel point electrode 50, when the user observes the displayed image of the display panel 100 using polarizing elements such as polarizing sunglasses, it is considered that the polarizing sunglasses include Or the transmission axis in the vertical direction, and the orientation direction of the liquid crystal 30 molecules in the present application and the angle of the absorption axis of the first polarizer 31 and the second polarizer 32 are all different from the above-mentioned horizontal direction and vertical direction, therefore, It can effectively avoid the black screen of the display panel 100 in the landscape/portrait (horizontal/vertical) mode when wearing sunglasses. In addition, the present application does not need to specifically add a sunglass POL to the display panel 100, and only needs to improve the existing first polarizer 31, the second polarizer 32, and the pixel electrode 50. Therefore, the performance of the display panel 100 is improved when wearing sunglasses. Besides the readability, it is also beneficial to save the production cost of the display panel 100 and the display device.

It should be noted that, in the viewing angle shown in FIG. 4 , each strip branch 52 is inclined upward relative to the first connecting portion 51. The branch 52 may also be inclined downward relative to the first connecting portion 51, which is not specifically limited in the present application. For example, please refer to FIG. A schematic diagram of the structure.

Optionally, the absorption axis angles of the first polarizer 31 and the second polarizer 32 satisfy:

0°<α1<90°, α2=α1+90°;

Or, the absorption axis angles of the first polarizer 31 and the second polarizer 32 satisfy:

0°<α2<90°, α1=α2+90°.

Specifically, in the display panel 100 provided by the embodiment of the present application, the angle of the absorption axis of any one of the first polarizer 31 and the second polarizer 32 can be set between 0° and 90°, and the angle of the other one The angle of the absorption axis is then added 90° on this basis. When natural light passes through the polarizer, the light whose vibration direction is parallel to the absorption axis of the polarizer will be absorbed, and only the polarized light whose vibration direction is perpendicular to the absorption axis of the polarizer is left in the transmitted light. In this application, the first polarizer 31 is used as the upper polarizer of the display panel 100, and the second polarizer 32 is used as the lower polarizer of the display panel 100. When the angles of the absorption axes of the upper polarizer and the lower polarizer are set to differ by 90° , the lower polarizer converts the light beam generated by the backlight into polarized light, and the upper polarizer is used to analyze the polarized light electrically modulated by the liquid crystal 30 to generate contrast between light and dark, thereby generating a display picture. In the display panel 100 provided in the embodiment of the present application, when 0°<α1<90°, α2=α1+90°, or 0°<α2<90°, α1=α2+90°, the user is using polarized light When polarizing elements such as sunglasses observe the displayed image of the display panel 100, the angles of the transmission axes of the polarizing sunglasses are different from the angles of the absorption axes of the first polarizer 31 and the second polarizer 32, so that the viewing angle of the sunglasses can be improved. The readability of the display panel 100 . In addition, the present application improves the existing upper polarizer and lower polarizer without introducing a new sunglass POL, which is also beneficial to saving the production cost of the display panel 100 .

Optionally, in the display panel 100 provided in the embodiment of the present application, the absorption axis angles of the first polarizer 31 and the second polarizer 32 satisfy: 30°≤α1≤60°, α2=α1+90°;

Alternatively, the absorption axis angles of the first polarizer 31 and the second polarizer 32 satisfy: 30°≦α2≦60°, α1=α2+90°.

Specifically, in the display panel 100 provided in the embodiment of the present application, when the absorption axis angles of the first polarizer 31 and the second polarizer 32 satisfy 30°≤α1≤60°, α2=α1+90°, the display panel The transmittance of 100 can be improved, and when wearing sunglasses to observe the display image of the display panel 100 , the display picture in oblique orientation will be better than the display picture with conventional polarizers. Similarly, when the absorption axis angle of the first polarizer 31 and the second polarizer 32 satisfies 30°≤α2≤60°, α1=α2+90°, the transmittance of the display panel 100 can also be improved. When observing the display image of the display panel 100 through sunglasses, the display image in the oblique orientation is better than the display image provided with conventional polarizers.

Optionally, in the display panel 100 provided in the embodiment of the present application, the absorption axis angles of the first polarizer 31 and the second polarizer 32 satisfy:

α1=45°, α2=135°; or, α2=45°, α1=135°.

Specifically, in the embodiment of the present application, the angles of the absorption axes of the first polarizer 31 and the second polarizer 32 are set to α1=45°, α2=135°; or, when α2=45°, α1=135°, the corresponding Compared with conventional polarizers, that is, the solution with an absorption axis of 0°/90°, its transmittance can be increased by about 7%, and when wearing sunglasses to observe the display screen, it will not be in landscape/portrait (horizontal/vertical) mode. A black screen phenomenon occurs, and at the same time, it can also improve the display effect of the display screen at an oblique viewing angle (for example, a viewing angle of 45°).

Optionally, referring to FIG. 4 or FIG. 5 , in the display panel 100 provided by the embodiment of the present application, the angle β between the strip branch 52 and the first connecting portion 51 satisfies: 20°<β<70°.

Specifically, the present application can set the angle between the strip branch 52 and the first connecting part 51 between 20° and 70°. Please refer to FIG. 1 , FIG. 4 and FIG. 5 , the starting point of each strip branch 52 It is equivalent to converging at the position of the first connecting portion 51, and the first connecting portion 51 extends along the second direction. Under the viewing angles shown in FIG. 1, FIG. 4 and FIG. Converging on the y-axis, on this basis, the deflection angle of each strip branch 52 relative to the first connecting part 51 is 20°<β<70°, so that the orientation direction of the liquid crystal molecules is along the horizontal or vertical direction with the polarized sunglasses The angles of the transmission axes are relatively different, which is more conducive to avoiding the black screen of the display panel 100 in the landscape/portrait mode when the sunglasses are worn.

Optionally, in the display panel 100 provided in the embodiment of the present application, the angle β between the strip branch 52 and the first connecting portion 51 satisfies: β=55°.

Specifically, as an optional method of the present application, the angle between the strip branch 52 and the first connecting portion 51 can be set to 55°, and correspondingly, the first polarizer 31 and the second polarizer can also be set to The angles of the absorption axes of the sheet 32 are respectively set to 45° and 135°, which can make the display panel 100 provided by the present application have better transmittance, and the display effect of the picture under the oblique viewing angle is better, which can not only improve Observing the readability of the display panel 100 under wearing sunglasses can also reduce the production cost of the display panel 100 . Of course, in addition to setting the angle between each strip branch 52 and the first connecting portion 51 at 55°, it can also be set at other angles, such as 30°, 45°, 60°, 65°, 85°, etc. etc., all help to improve the readability of the display panel 100 when wearing sunglasses, and at the same time help to save the production cost of the display panel 100 and the display device.

Optionally, in the display panel 100 provided in the embodiment of the present application, the alignment direction of the liquid crystal 30 is parallel to the direction of the absorption axis of the first polarizer 31 or the second polarizer 32 . Usually, the light source of the liquid crystal display panel is provided by the backlight module, but the light direction provided by the backlight module is inconsistent and radial. If such light is twisted by the liquid crystal molecules, what we see on the screen may be a vast expanse of whiteness. , or brightly colored color blocks. In this application, the second polarizer (ie, the lower polarizer) undertakes the work of standardizing the direction of light to be consistent before sending it to the liquid crystal layer. The liquid crystal molecules are twisted under the control of the TFT to control the brightness of the light in the same direction, so that the brightness of the light leading to the rear pixel unit is changed. Liquid crystal itself has no color, so color filters are used to produce various colors. The originally consistent direction of light becomes inconsistent after being twisted by the liquid crystal layer, so if the diffused light is not adjusted again, what you see in front of the screen is still a vast expanse of white light that has been twisted by the liquid crystal. It is not reflected, so the diffused light must be regularized here, and the optical center twisted by the liquid crystal is re-deflected by using a piece of the first polarizer (ie, the upper polarizer) that is perpendicular to the polarization direction of the second polarizer. The brightness of the light passing through the first polarizer is different, so we can see the alternating light and dark pictures on the screen. In this application, the alignment direction of the liquid crystal is parallel to the direction of the absorption axis of the first polarizer 31 or the second polarizer 32, which can ensure that the light passes through the first polarizer 31 and the second polarizer 32 after the cooperation. A polarizer 31 is used to realize the display of the picture.

Optionally, please refer to FIG. 3 and FIG. 6, wherein FIG. 6 is a schematic diagram of an arrangement of the sub-pixel units 70 in the display panel 100 provided by the embodiment of the present application. The display panel 100 also includes a common electrode and a plurality of The sub-pixel units 70 arranged along the first direction and the second direction, the pixel electrode layer 80 is located on the side of the common electrode layer 60 away from the base substrate 11; each sub-pixel unit 70 includes a pixel electrode 50;

The array substrate 10 also includes an array layer 40. The array layer 40 is located on the side of the common electrode layer 60 facing the base substrate 11. The array layer 40 includes a plurality of driving transistors 41. In the same sub-pixel unit 70, the drains of the driving transistors 41 It is electrically connected to the pixel electrode 50 in one-to-one correspondence.

It should be noted that FIG. 6 only schematically shows an arrangement of sub-pixel units in a display panel. In addition to this arrangement, sub-pixel units can also be embodied in other arrangements. The arrangement of the sub-pixel units is not limited.

Specifically, referring to FIG. 3 and FIG. 6, each sub-pixel unit 70 corresponds to a pixel electrode 50, and the display panel 100 also includes a common electrode 61 opposite to the pixel electrode 50. In this embodiment, the pixel electrode 50 and the common electrode 61 are located on the array substrate 10, and the common electrode 61 is located on the side of the pixel electrode 50 facing the array layer 40; since the drain of the driving transistor 41 is electrically connected to the pixel electrode 50, the driving transistor 41 can provide a voltage to the pixel electrode 50 Signal, the common electrode 61 is used to receive the common voltage signal, so that the voltage that causes the liquid crystal 30 to deflect is formed between the pixel electrode 50 and the common electrode 61, so that the liquid crystal 30 is deflected, and the light passes through the liquid crystal 30 to realize screen display.

Optionally, FIG. 7 is another AA' sectional view of the display panel 100 provided by the embodiment shown in FIG. The PIN is integrated in the array layer 40;

The color filter substrate 20 includes a black matrix layer 21, the black matrix layer 21 defines a plurality of pixel openings 73 and a plurality of fingerprint identification openings 74, the pixel openings 73 are provided with color resistance R/G/B, the fingerprint identification opening 74 and the fingerprint identification sensor PIN The orthographic projections on the plane where the base substrate 11 is located overlap.

Considering the uniqueness and non-deformation of human fingerprints, the security of fingerprint recognition is strong, and there are many display devices with fingerprint recognition function on the market. Before operating the display device with fingerprint recognition function, users only need to use The fingerprint identification module of the display device can be touched by a finger to perform authority verification, which simplifies the authority verification process. Existing display devices with fingerprint recognition function, one form is embodied as fingerprint recognition under the screen, that is, the fingerprint recognition module is located on the side of the display module away from the light-emitting surface. Light has to pass through many layers before entering the fingerprint identification module. Please refer to FIG. 7. In order to realize fingerprint recognition under the screen, a fingerprint recognition sensor PIN is set at the hole in the BM area of each sub-pixel of the display panel 100 for fingerprint recognition, and the light from the backlight module passes through R/G/B The color resist shoots out of the glass surface, and the light reflected by the finger enters the fingerprint recognition sensor PIN to generate an electrical signal and then detects the fingerprint information. However, in the display panel integrated with the fingerprint recognition function under the screen, the sunglass POL cannot be used. The sunglass POL is a 1/4 wave plate. After the reflected light passes through the 1/2 wave plate, it will cause the light direction to rotate by 90°, and finally Most of the reflected light is absorbed and cannot enter the fingerprint recognition sensor PIN, so the display panel of the fingerprint recognition function under the screen cannot be compatible with the sunglass POL, that is, when wearing sunglasses, the display panel of the fingerprint recognition function under the screen will appear in landscape/portrait mode The next black screen.

In order to solve the above-mentioned problems, in the embodiment of the present application, in the display panel 100 with the fingerprint recognition function under the screen, by changing the angle of the absorption axis of the first polarizer 31 and the second polarizer 32, and adjusting the structure of the pixel electrode 50, It improves the readability of the under-display fingerprint recognition display panel 100 when wearing sunglasses, and avoids the phenomenon of a black screen in the landscape/portrait mode of the display panel 100, thereby solving the problem that the display panel 100 with the under-display fingerprint recognition function cannot be compatible with the sunglass POL.

Optionally, please refer to FIG. 7 and FIG. 8 , wherein FIG. 8 shows a top view of a sub-pixel unit 70 in the display panel 100 provided by the embodiment of the present application. The sub-pixel unit 70 includes an opening area 71 and a non- The opening area 72 and the pixel opening 73 are located in the opening area 71 ; the orthographic projection of the fingerprint identification opening 74 on the plane where the substrate 11 is located is located in the non-opening area 72 .

Specifically, the present application arranges the fingerprint recognition opening 74 of the fingerprint recognition sensor PIN in the non-opening area 72 of the sub-pixel unit 70, and does not occupy the position of the opening area 71, so that the display panel 100 can not only have the fingerprint recognition function, but also Does not affect its aperture ratio.

Based on the same inventive concept, the present application also provides a display device 200, please refer to FIG. 9, which is a schematic structural diagram of the display device provided by the embodiment of the present application. The display panel is the display panel 100 provided in any one of the above-mentioned embodiments of the present application. For the embodiments of the display device provided in the embodiments of the present application, reference may be made to the above embodiments of the display panel, and repeated descriptions will not be repeated. The display device provided in this application may be any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.

It can be known from the above embodiments that the display panel and the display device provided by the present invention at least achieve the following beneficial effects:

In the display panel and the display device provided in the embodiments of the present application, the angles of the absorption axes of the first polarizer and the second polarizer are improved, so that the angles of the absorption axes of the first polarizer and the second polarizer are all different. It is 0° or 90°, and at the same time cooperates with the special structural design of the pixel electrode, that is, the pixel electrode includes a first connecting portion extending along the second direction and a plurality of strip-shaped branches connected to it, and each strip-shaped branch is parallel to each other and connected to the first The included angle between the connecting parts is 0°<β<90°. Since polarized sunglasses usually include a polarizing element with a transmission axis along the horizontal or vertical direction, this application adjusts the angle of the absorption axes of the first polarizer and the second polarizer in the display panel to be non-0° and non-90° °, combined with the above-mentioned special structural design of the pixel electrode, when observing the screen of the display panel while wearing polarized sunglasses, it can effectively avoid the black screen in the landscape/portrait (horizontal/vertical) mode, and there is no need to use the display panel Therefore, while improving the readability of the display panel when wearing sunglasses, it is also beneficial to save the production cost of the display panel and the display device.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are for illustration only and not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (11)

1. a kind of display panel characterized by comprising

The color membrane substrates and array substrate that are oppositely arranged and the liquid being filled between the color membrane substrates and the array substrate It is brilliant；

First polaroid, the side positioned at the color membrane substrates far from the array substrate；

Second polaroid, the side positioned at the array substrate far from the color membrane substrates；

The absorption axiss angle of first polaroid is α 1, and the absorption axiss angle of second polaroid is α 2, wherein α 1 ≠ 0 °, 1 ≠ 90 ° of α, and, 2 ≠ 0 ° of α, 2 ≠ 90 ° of α；

The array substrate includes underlay substrate and the pixel electrode positioned at the underlay substrate towards the color membrane substrates side Layer；The pixel electrode layer includes multiple pixel electrodes arranged along first direction and second direction；

Multiple strips point that each pixel electrode includes first connecting portion and connect and be parallel to each other with the first connecting portion Branch, the first connecting portion extends along the second direction, and multiple strip branches are along the first direction positioned at described the The same side of one interconnecting piece；Angle between the strip branch and the first connecting portion is β, 0 ° of 90 ° of < β <；Described Intersect with the second direction in one direction.

2. display panel according to claim 1, which is characterized in that first polaroid and second polaroid Absorption axiss angle meets: 0 ° of 90 ° of 1 < of < α, α 2=α 1+90 °；

Alternatively, the absorption axiss angle of first polaroid and second polaroid meets:

0 ° of 90 ° of 2 < of < α, α 1=α 2+90 °.

3. display panel according to claim 2, which is characterized in that first polaroid and second polaroid Absorption axiss angle meets: 1≤60 ° of 30 °≤α, α 2=α 1+90 °；

Alternatively, the absorption axiss angle of first polaroid and second polaroid meets: 2≤60 ° of 30 °≤α, α 1=α 2+ 90°。

4. display panel according to claim 3, which is characterized in that first polaroid and second polaroid Absorption axiss angle meets: α 1=45 °, α 2=135 °；Alternatively, α 2=45 °, α 1=135 °.

5. display panel according to claim 1, which is characterized in that between the strip branch and the first connecting portion Angle β meet: 20 ° of 70 ° of < β <.

6. display panel according to claim 5, which is characterized in that between the strip branch and the first connecting portion Angle β meet: β=55 °.

7. display panel according to claim 1, which is characterized in that

The alignment direction of the liquid crystal is parallel with the direction of absorption axiss of first polaroid or second polaroid.

8. display panel according to claim 1, which is characterized in that the display panel further includes public electrode and multiple The sub-pixel unit arranged along the first direction and the second direction, the pixel electrode layer are located at the common electrode layer Side far from the underlay substrate；Each sub-pixel unit includes a pixel electrode；

The array substrate further includes array layer, and the array layer is located at the common electrode layer towards the one of the underlay substrate Side, the array layer includes multiple driving transistors, in the same sub-pixel unit, it is described driving transistor drain electrode with The pixel electrode corresponds electrical connection.

9. display panel according to claim 8, which is characterized in that the display panel further includes that multiple fingerprint recognitions pass Sensor, the fingerprint Identification sensor are integrated in the array layer；

The color membrane substrates include black matrix layer, and the black matrix layer limits multiple pixel openings and multiple fingerprint recognitions opening, Color blocking is provided in the pixel openings, the fingerprint recognition opening and the fingerprint Identification sensor are in the underlay substrate institute It is overlapping in the orthographic projection of plane.

10. display panel according to claim 9, which is characterized in that the sub-pixel unit includes open region and Fei Kai Mouth region, the pixel openings are located at the open region；Positive throwing of the fingerprint recognition opening in plane where the underlay substrate Shadow is located at the non-open region.

11. a kind of display device, which is characterized in that any display panel including claim 1-10.