Patent ID: 12204201

DETAILED DESCRIPTION

Some embodiments of the present disclosure will be described in detail below in conjunction with the drawings. It should be understood that the described embodiments are only to illustrate and explain the present disclosure, but not intended to limit the present disclosure.

In the present disclosure, unless otherwise stated, locative words used such as “upper” and “lower” generally refer to the upper and lower directions of the device in actual use or working state, and specifically refer to the drawing directions in the drawings; and “inner” and “outer” refer to the outline of the device.

In recent years, the liquid crystal display panel still occupies a position in the consumer market, but as the thickness of the polarizing material layer decreases, its strength decreases, and the stress applied by the two film layers attached to the upper and lower sides of the polarizing material layer may cause wrinkles or even cracks in the polarizing material layer, and the higher the temperature, the higher the risk of cracking.

Referring toFIGS.1to3, an embodiment of the present disclosure provides a display panel100including:a first substrate200;a second substrate300disposed opposite to the first substrate200;a liquid crystal layer400between the first substrate200and the second substrate300; anda first polarizing layer500disposed to correspond to the first substrate200, the first polarizing layer500includes a first sublayer510, a second sublayer520, and a first polarizing material layer530disposed between the first sublayer510and the second sublayer520.

The first sublayer510has a first shrinkage force511and the second sublayer520has a second shrinkage force521, and the shrinkage direction of the first shrinkage force511is parallel to the shrinkage direction of the second shrinkage force521.

According to the present disclosure, the shrinkage forces of the first sublayer and the second sublayer on both sides of the first polarizing material layer are set to be parallel to each other, which reduces the difference in the directions of the shrinkage stresses of the first sublayer and the second sublayer on both sides of the first polarizing material layer, reduces the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing material layer, reduces the risk that the polarizing material layer is prone to wrinkles or even cracks, and improves the quality of the first polarizing layer and the display quality of the display panel.

The technical solution of the present disclosure will now be described in connection with specific embodiments.

In an embodiment, referring toFIG.1andFIG.2, the display panel100includes the first substrate200, the second substrate300disposed opposite to the first substrate200, the liquid crystal layer400disposed between the first substrate200and the second substrate300, and the first polarizing layer500disposed corresponding to the first substrate200. The first polarizing layer500includes the first sublayer510, the second sublayer520, and the first polarizing material layer530disposed between the first sublayer510and the second sublayer520. The first sublayer510has a first shrinkage force511and the second sublayer520has a second shrinkage force521, and the shrinkage direction of the first shrinkage force511is parallel to the shrinkage direction of the second shrinkage force521.

For ease of description, a first direction herein is parallel to the X-axis and a second direction is parallel to the Y-axis. The first sublayer510and the second sublayer520are generally organic material films. As the temperature increases, the shrinkage force increases, and the influence on the first polarizing layer500becomes stronger and stronger. Therefore, the directions of the shrinkage forces of the first sublayer510and the second sublayer520are parallel to each other, which is conducive to offsetting the shrinkage stresses on both sides of the first polarizing layer500, reducing the difference in the directions of the shrinkage stresses applied by the first sublayer510and the second sublayer520on both sides of the first polarizing layer530, reducing the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing layer530, reducing the risk of wrinkling or even crack of the polarizing layer, improving the quality of the first polarizing layer500, improving the production efficiency, and improving the display quality of the display panel100.

In some embodiments, the ratio of the first shrinkage force511to the second shrinkage force521is from 19/20 to 21/20.

The shrinkage direction of the first shrinkage force511is parallel to the shrinkage direction of the second shrinkage force521, and the magnitude of the first shrinkage force511is set to be consistent with the magnitude of the second shrinkage force521, thereby further reducing the difference in the directions of the shrinkage stresses applied by the first sublayer510and the second sublayer520on both sides of the first polarizing layer530, reducing the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing layer530, reducing the risk of wrinkling or even crack of the polarizing layer, improving the quality of the first polarizing layer500, and improving the display quality of the display panel100.

In some embodiments, referring toFIG.2, the first sublayer510is an optical compensation film, the first sublayer510has a slow axis512, and the direction of the slow axis512of the first sublayer510is perpendicular to the direction of the absorption axis of the first polarizing material layer530; the direction of the slow axis512of the first sublayer510is parallel to the direction of the first shrinkage force511. The absorption axis of the first polarizing material layer530is denoted by the reference numeral531.

The display panel100may be of an In-Plane Switching (IPS) or Vertical Alignment (VA) mode, for example. The slow axis512of the optical compensation film may compensate for side light leakage, improve a large viewing angle display effect, and the effect is more obvious for the VA mode. The direction of the slow axis512of the first sublayer510is perpendicular to the direction of the absorption axis of the first polarizing material layer530, and it is further advantageous to improve a large viewing angle display effect.

When making the first sublayer510, referring to illustration (a) of FIG.5, a first material sublayer600is provided, the first material sublayer600is stretched to form a first shrinkage force511, the first material sublayer600is curled to form a first coil610, the unfolding direction of the first coil610is parallel to the first direction, the first coil610is unfolded and cut to provide the first sublayer510, and the direction of the slow axis512of the first sublayer510is parallel to the direction of the first shrinkage force511, so that the influence of the first shrinkage force511on the axial direction of the slow axis512is reduced during the shrinkage, the optical effect of the first sublayer510is ensured, and the large viewing angle display effect is improved.

In some embodiments, referring toFIG.2, the first substrate200is an array substrate, and the second substrate300is a color filter substrate; the first polarizing layer500is disposed at the side of the array substrate away from the color filter substrate, the second sublayer520is disposed at the side of the first sublayer510away from the array substrate, and the second sublayer520is a protective layer.

Generally, a coil of a polarizing layer at the side of a color filter substrate has a unfolding direction parallel to the direction of the absorption axis, and the polarizing layer at the side of the array substrate and the polarizing layer at the side of the color filter substrate are both formed by unfolding a coil of the same type, so that the direction of the absorption axis of the polarizing layer at the side of the array substrate is parallel to the unfolding direction of the coil, and the length of the polarizing layer at the side of the array substrate is the width of the coil. Therefore, a factor limiting the size of the polarizing layer at the side of the array substrate is the width of the coil.

Generally, a surface treatment layer350is also provided on the protective layer at the side of the color filter substrate, so that the protective layer at the side of the color filter substrate has less influence on the polarizing layer, and the protective layer at the side of the array substrate has more influence on the polarizing layer.

In manufacturing the second sublayer520, referring to illustration (c) ofFIG.5, a second material sublayer700is provided, the second material sublayer700is stretched to form the second shrinkage force521, the second material sublayer700is curled to form a second coil710, an unfolding direction of the second coil710is parallel to the first direction, the second coil710is unfolded and cut to provide the second sublayer520, and the direction of the second shrinkage force521of the second sublayer520is parallel to the unfolding direction of the second coil710, so that the influence of the unfolding of the second coil710on the direction perpendicular to the second shrinkage force521is reduced, the change of the shrinkage direction of the second shrinkage force521of the second sublayer520, which affects the matching effect with the first sub-layer510, is avoided, the risk of wrinkling or even breaking of the polarizing material layer is reduced, the quality of the first polarizing layer500is improved, and the display quality of the display panel100is improved.

In some embodiments, the first sublayer510is an optical compensation layer, the first sublayer510has an in-plane phase difference of less than or equal to 65 nm, and the first sublayer510has an in-vertical-plane phase difference of 5 nm to 280 nm.

The first sublayer510is the optical compensation layer. Generally, the larger the in-plane phase difference and the in-vertical-plane phase difference of the optical film layer are, the larger the shrinkage force is. The in-plane phase difference Re of the first sublayer510is in the range of 0 nm to 65 nm. The in-vertical-plane phase difference Rth of the first sublayer510is in the range of 5 nm to 280 nm. Therefore, it is avoided that the phase difference is too large, resulting in excessive shrinkage force, and that the shrinkage pull stress applied by the first sublayer510on the first polarizing material layer530is too large, which cause that the second shrinkage force521of the second sublayer520cannot balance the first shrinkage force511. The risk that the polarizing material layer may be wrinkled or even broken is reduced, and the quality of the first polarizing layer500is improved. At the same time, a suitable in-vertical-plane phase difference Rth and the in-plane phase difference Re are beneficial to improving the visual viewing-angle and improving the display quality of the display panel100.

Alternatively, the in-plane phase difference Re and the in-vertical-plane phase difference Rth (the phase difference Rth in the thickness direction) of the optical film are measured using a birefringence evaluation device (for example, KOBRA-WPR, manufactured by Prince Metering Machine Co., Ltd.). The optical film layer is attached to glass to obtain a sample for measuring the phase difference, and the phase difference at a wavelength of 550 nm may be measured. The visible light has a wavelength of 380 nm to 780 nm, the control of the optical film layer may be carried out according to a phase difference at a wavelength of 550 nm.

In some embodiments, at 80° C., the shrinkage force of the first sublayer510is less than or equal to 4N, and the shrinkage force of the second sublayer520is less than or equal to 4N.

Generally, before the display panel100is manufactured, for example, a weatherability test of about 50° C. is required. At 80° C., the shrinkage force of the first sublayer510is less than or equal to 4N, and the shrinkage force of the second sublayer520is less than or equal to 4N, so that it may be avoided that the shrinkage force is too large, and the second shrinkage force521of the second sublayer520may not balance the first shrinkage force511, thereby reducing the risk that the polarizing material layer tends to be wrinkled or even broken, improving the quality of the first polarizing layer500, and in particular, improving the high weatherability of the first polarizing layer500, and improving the display quality of the display panel100.

Alternatively, the measurement of the shrinkage force may be carried out through a thermal shrinkage force measurement using the thermomechanical measuring device (TMA/SS6000) from Seiko Instruments. A sample with a sample width of 4 mm and a sample length of 70 mm is cut out in the direction in which the shrinkage force is to be tested; the sample is fixed to both ends of a clamp with a chuck pitch of 20 mm; optionally, the temperature is raised from 25° C. (room temperature) to the test temperature (e.g., 80° C., 90° C.) at a temperature increasing rate 10° C./min, the shrinkage force of the sample at a constant length state is tracked, and the shrinkage force at the test temperature of the sample is evaluated.

For the direction of the shrinkage force, if the sample has a shrinkage force value measured, there is a shrinkage force in a direction parallel to the line connecting the two ends of the clamp; if the value of the measured shrinkage force of the sample is very small or substantially zero, there is substantially no shrinkage force in the direction parallel to the line connecting the two ends of the clamp, or the direction parallel to the line connecting the two ends of the clamp is perpendicular to the direction of the shrinkage force; samples in different directions may be selected for measurement, and the direction in which the maximum shrinkage force is measured may be the direction in which the shrinkage forces are combined.

In some embodiments, referring toFIGS.1and3, the display panel100further includes a second polarizing layer310at a side of the second substrate300, the second polarizing layer310includes a third sublayer320, a fourth sublayer340, and a second polarizing material layer330between the third sublayer320and the fourth sublayer340.

The fourth sublayer340is located at the side of the third sublayer320away from the first substrate200, and the third sublayer320may be an optical compensation film having a slow axis, and the fourth sublayer340may be a protective layer. For structure and property parameters of the third sublayer320and the fourth sublayer340, reference may be made to the structure and property parameters of the first sublayer510and the second sublayer520, and details are not described herein.

In some embodiments, referring toFIGS.2and3, the absorption axis of the second polarizing material layer330is perpendicular to the absorption axis of the first polarizing material layer530. The absorption axis of the second polarizing material layer330is denoted by the reference numeral “331”.

In some embodiments, referring toFIG.3, the second polarizing layer310further includes a surface treatment layer350at the side of the fourth sublayer340away from the first substrate200, and the surface treatment layer350may be used for functions such as hardening or anti-glare.

In some embodiments, the materials of the first polarizing material layer530and the second polarizing material layer330may include polyvinyl alcohol (PVA). The thickness of each of the first polarizing material layer530and the second polarizing material layer330is less than or equal to 5 μm.

In some embodiments, the materials of the first sublayer510and the third sublayer320may be polymeric materials such as cycloolefin polymer (COP) or triacetate fiber film (TAC). The thickness of each of the first sublayer510and the third sublayer320ranges from 30 μm to 60 μm.

In some embodiments, the materials of the second sublayer520and the fourth sublayer340may be triacetate fiber film (TAC) or low water absorption material such as cycloolefin polymer (COP), polymethylmethacrylate (PMMA), polyethylene terephthalate (PET), and the like. The thickness of each of the second sublayer520and the fourth sublayer340ranges from 40 μm to 100 μm.

In some embodiments, an adhesive layer is further provided between the first polarizing layer500and the first substrate200, and an adhesive layer is further provided between the second polarizing layer310and the second substrate300.

In some embodiments, the array substrate includes a first substrate, an active layer on the first substrate, a first insulating layer on the active layer, a gate layer on the first insulating layer, a second insulating layer on the gate layer, a source-drain layer on the second insulating layer, and a third insulating layer on the source-drain layer.

In some embodiments, the color filter substrate includes a second substrate and a color filter layer. The color filter layer includes a plurality of color filter and light shielding parts positioned between the two adjacent color resistances.

In some embodiments, the display panel100further includes a pixel electrode layer and a common electrode layer, and the specific setting positions thereof may be adaptively set according to different modes, which is not specifically limited herein.

According to the present disclosure, the shrinkage forces of the first sublayer and the second sublayer on both sides of the first polarizing material layer are set to be parallel to each other, so that the direction difference between the shrinkage stresses of the first sublayer and the second sublayer on both sides of the first polarizing material layer is reduced, the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing material layer is reduced, the risk that the polarizing material layer is prone to wrinkles or even cracks is reduced, the quality of the first polarizing layer is improved, and the display quality of the display panel is improved.

Referring toFIG.4, an embodiment of the present disclosure further provides a method of manufacturing the display panel100, which includes the following steps.

At step S100, a first sublayer510having a first shrinkage force511, a second sublayer520having a second shrinkage force521, and a first polarizing material layer530are provided;

At step S200, the second sub-layer520and the first sub-layer510are attached sequentially to the first polarizing material layer530, so that a shrinkage direction of the first shrinkage force511is parallel to a shrinkage direction of the second shrinkage force521, and the first polarizing layer500is formed;

At step S300, a first substrate200, a second substrate300disposed opposite to the first substrate200, and a liquid crystal layer400between the first substrate200and the second substrate300are provided;

At step S400, the first polarizing layer500is attached to the first substrate200at a side away from the second substrate300.

According to the present disclosure, the shrinkage forces of the first sublayer and the second sublayer on both sides of the first polarizing material layer are set to be parallel to each other, so that the direction difference between the shrinkage stresses of the first sublayer and the second sublayer on both sides of the first polarizing material layer is reduced, the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing material layer is reduced, the risk that the polarizing material layer is prone to wrinkles or even cracks is reduced, the quality of the first polarizing layer is improved, and the display quality of the display panel is improved.

The technical solution of the present disclosure will now be described in connection with specific embodiments.

In the embodiment, the method of manufacturing the display panel100includes the following step.

At step S100, a first sublayer510having a first shrinkage force511, a second sublayer520having a second shrinkage force521, and a first polarizing material layer530are provided, as shown inFIG.5.

In some embodiments, the step S100includes the following steps.

At step S110, the first material sublayer600is provided, the first material sublayer600is stretched to form a first shrinkage force511, and a shrinkage direction of the first shrinkage force511is parallel to a first direction, as shown in illustration (a) ofFIG.5.

At step S120, the first material sublayer600is curled to form a first coil610so that an unfolding direction of the first coil610is parallel to the first direction, and the first coil610is unfolded and cut to provide the first sublayer510, as shown in illustration (a) ofFIG.5.

At step S130, the second material sublayer700is provided, the second material sublayer700is stretched to form a second shrinkage force521, and a shrinkage direction of the second shrinkage force521is parallel to the first direction, as shown in illustration (c) ofFIG.5.

At step S140, the second material sublayer700is curled to form a second coil710so that an unfolding direction of the second coil710is parallel to the first direction, and the second coil710is unfolded and cut to provide the second sublayer520, as shown in illustration (c) ofFIG.5.

In some embodiments, referring to the illustration (c) ofFIG.5, when the first sublayer510is formed, the first material sublayer600is provided, the first material sublayer600is stretched to form the first shrinkage force511, the first material sublayer600is curled to form the first coil610, the unfolding direction of the first coil610is parallel to the first direction, the first coil610is unfolded and cut to provide the first sublayer510, and the direction of the slow axis512of the first sublayer510is parallel to the direction of the first shrinkage force511, so that the influence of the first shrinkage force511on the axial direction of the slow axis512during the shrinkage is reduced, the optical effect of the first sublayer510is ensured, and the large viewing-angle display effect is improved. The unfolding direction of the first coil610is denoted by the reference numeral “910”, and the unfolding direction of the second coil710is denoted by the reference numeral “920”.

Generally, a coli of the polarizing layer at the side of the color filter substrate has an unfolding direction parallel to the direction of the absorption axis, and the polarizing layer at the side of the array substrate and the polarizing layer at the side of the color filter substrate are both formed by unfolding a coil of the same type, so that the direction of the absorption axis of the polarizing layer at the side of the array substrate is parallel to the unfolding direction of the coil, and the length of the polarizing layer at the side of the array substrate is the width of the coil. Therefore, a factor limiting the size of the polarizing layer at the side of the array substrate is the width of the coil.

Generally, the protective layer at the side of the color filter substrate is provided with the surface treatment layer350, so that the protective layer at the side of the color filter substrate has less influence on the polarizing layer, and the protective layer at the side of the array substrate has more influence on the polarizing layer.

In manufacturing the second sublayer520, referring to illustration (c) ofFIG.5, the second material sublayer700is provided, the second material sublayer700is stretched to form the second shrinkage force521, the second material sublayer700is curled to form the second coil710, the unfolding direction of the second coil710is parallel to the first direction, the second coil710is unfolded and cut to provide the second sublayer520, and the direction of the second shrinkage force521of the second sublayer520is parallel to the unfolding direction of the second coil710, so that the influence of the unfolding of the second coil710on the direction perpendicular to the second shrinkage force521is reduced, the change of the shrinkage direction of the second shrinkage force521of the second sublayer520, which affects the matching effect with the first sub-layer510, is avoided, the risk of wrinkling or even cracking of the polarizing material layer is reduced, the quality of the first polarizing layer500is improved, and the display quality of the display panel100is improved.

At step S150, the first polarizing material layer530is provided.

In some embodiments, the first substrate200is the array substrate, and the second substrate300is a color filter substrate, and the step S150includes the following steps.

At step S151, a first polarizing material film800is provided, the direction of the absorption axis of the first polarizing material film800is parallel to the second direction, as shown in illustration (b) ofFIG.5.

At step S152, the first polarizing material film800is curled to form a third coil810, so that the unfolding direction of the third coil810is parallel to the first direction, and the third web810is unfolded and cut to provide the first polarizing material layer530. The unfolding direction of the third coil810is indicated by the reference numeral “930”, as shown in illustration (b) ofFIG.5.

In some embodiments, the first direction is perpendicular to the second direction. The length of the polarizing layer at the side of the array substrate is limited by the length of the coil, and the width of the polarizing layer at the side of the array substrate is limited by the width of the coil, which is conducive to the manufacture of a larger size polarizing layer at the side of the array substrate and a larger size display panel.

In some embodiments, the polarization of the first polarizing material layer530may be performed before it is attached to the second protective layer, and step S151includes the following steps.

At step S1511, the first polarizing material film800including polyvinyl alcohol (PVA) is provided.

At step S1512, the first polarizing material film800is polarized so that the direction of the absorption axis of the first polarizing material film800is parallel to the second direction.

In some embodiments, the polarizing method may be an iodine staining method.

At step S200, the second sublayer520and the first sublayer510are sequentially attached to the first polarizing material layer530so that the shrinkage direction of the first shrinkage force511is parallel to the shrinkage direction of the second shrinkage force521, so as to form the first polarizing layer500, as shown inFIG.2.

In some embodiments, the polarization of the first polarizing material layer530may be performed after it is attached with the second protective layer, the step S200includes the following steps.

At step S210, the first polarizing material layer530is attached with the second sublayer520.

At step S220, the first polarizing material layer530is polarized so that the direction of the absorption axis of the first polarizing material layer530is parallel to the second direction.

At step S230, the first polarizing material layer530is attached with the first sublayer510so that the shrinkage direction of the first shrinkage force511is parallel to the shrinkage direction of the second shrinkage force521, so as to form the first polarizing layer500.

In some embodiments, the polarizing method may be an iodine staining method.

In some embodiments, the polarization of the first polarizing material layer530may be performed after it is attached with the second protective layer, the material of the second sublayer520needs to be a low water absorption material, such as cycloolefin polymer (COP), polymethylmethacrylate (PMMA), polyethylene terephthalate (PET), and the like.

In some embodiments, the first sublayer510may be obtained by uniaxial stretching or biaxial stretching, or performing uniaxial stretching and biaxial stretching sequentially.

At step S300, the first substrate200, the second substrate300disposed opposite to the first substrate200, and the liquid crystal layer400between the first substrate200and the second substrate300are provided, as shown inFIG.1.

In some embodiments, the first substrate200is an array substrate and the second substrate300is a color filter substrate. The first polarizing layer500is disposed at the side of the array substrate away from the color filter substrate, the second sublayer520is disposed at the side of the first sublayer510away from the array substrate, and the second sublayer520is the protective layer.

At step S400, the first polarizing layer500is attached to a side of the first substrate200away from the second substrate300, as shown inFIG.1.

In some embodiments, the method of manufacturing the display panel100further includes the following steps.

At step S500, the second polarizing layer310is provided, as shown inFIG.3.

At step S600, the second polarizing layer310is attached to the side of the second substrate300away from the first substrate200, as showing inFIG.1.

In some embodiments, referring toFIG.3, the display panel100further includes the second polarizing layer310at the side of the second substrate300, the second polarizing layer310includes the third sublayer320, the fourth sublayer340, and the second polarizing material layer330between the third sublayer320and the fourth sublayer340.

The fourth sublayer340is located at the side of the third sublayer320away from the first substrate200. The third sublayer320may be an optical compensation film having a slow axis. The fourth sublayer340may be a protective layer. For the structure and property parameters of the third sublayer320and the fourth sublayer340, reference may be made to the structure and property parameters of the first sublayer510and the second sublayer520. Details are not described herein.

According to the present disclosure, the shrinkage forces of the first sublayer and the second sublayer on both sides of the first polarizing material layer are set to be parallel to each other, so that the direction difference between the shrinkage stresses of the first sublayer and the second sublayer on both sides of the first polarizing material layer is reduced, the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing material layer is reduced, the risk that the polarizing material layer is prone to wrinkles or even cracks is reduced, the quality of the first polarizing layer is improved, and the display quality of the display panel is improved.

Referring toFIGS.6and7, an embodiment of the present disclosure further provides a display device1including the display panel100and a backlight module10as described above.

Referring toFIG.7, the backlight module10includes a lamp plate30, a back plate20, and a diffusion plate40; the lamp plate30is disposed between the back plate20and the diffusion plate40.

Specifically, the lamp plate30in the present embodiment is fixed to the back plate20, and the fixing may be a bolt fixing or an adhesive fixing, which is not difficult for a person skilled in the art to realize, and will not be repeatedly described herein. After the lamp plate30is fixed to the back plate20, the diffusion plate40is disposed at a side of the lamp plate30facing away from the back plate20, and an optical film50is disposed at a side of the diffusion plate40facing away from the back plate20. The arrangement of the diffusion plate40and the optical film50is not difficult to be realized or understood by a person skilled in the art, and details are not described herein.

Referring toFIG.6, in some embodiments, the display device1further includes a device body2that is integrated with the backlight module10and the display panel100.

In some embodiments, the device main body2may include a middle frame, a frame glue, or the like, and the display device1may be a display terminal such as a mobile phone, a tablet, a television, an electronic watch, a sport bracelet, a notebook computer, a giant screen, or the like, which is not limited herein.

An embodiment of the present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes a first substrate, a second substrate, a liquid crystal layer, and a first polarizing layer disposed corresponding to the first substrate. The first polarizing layer includes a first sublayer, a second sublayer, and a first polarizing material layer disposed between the first sublayer and the second sublayer. The first sublayer has a first shrinkage force, the second sublayer has a second shrinkage force, and a shrinkage direction of the first shrinkage force is parallel to a shrinkage direction of the second shrinkage force. According to the present disclosure, the shrinkage forces of the first sublayer and the second sublayer on both sides of the first polarizing material layer are set to be parallel to each other, so that the direction difference between the shrinkage stresses of the first sublayer and the second sublayer on both sides of the first polarizing material layer is reduced, the stress pulling caused by the shrinkage stresses in different directions on both sides of the first polarizing material layer is reduced, the risk that the polarizing material layer is prone to wrinkles or even cracks is reduced, the quality of the first polarizing layer is improved, and the display quality of the display panel is improved.

The present disclosure has been described in detail with respect to a display panel, a method for manufacturing the same, and a display device according to an embodiment of the present disclosure. The principles and implementations of the present disclosure are described in detail here with specific examples. The above description of the embodiments is merely intended to help understand the method and core ideas of the present application. At the same time, a person skilled in the art may make changes in the specific embodiments and application scope according to the idea of the present application. In conclusion, the content of the present specification should not be construed as a limitation to the present disclosure.