CN-122018068-A - Phase delay film and manufacturing method thereof, display module and manufacturing method thereof

CN122018068ACN 122018068 ACN122018068 ACN 122018068ACN-122018068-A

Abstract

The disclosure provides a phase retardation film, a manufacturing method thereof, a display module and a manufacturing method thereof, wherein the phase retardation film comprises a substrate, an orientation layer, an optical anisotropic layer, a guide layer and a contact angle, wherein the orientation layer is arranged on a first surface of the substrate and comprises a first orientation zone and a second orientation zone which are alternately arranged, the optical anisotropic layer is arranged on one side of the orientation layer, which is away from the substrate, and is provided with a first optical axis direction at a position corresponding to the first orientation zone, and a second optical axis direction at a position corresponding to the second orientation zone, the guide layer is arranged on a second surface of the substrate and comprises a first surface energy zone and a second surface energy zone which are alternately arranged, the contact angle of the first surface energy zone is larger than that of the second surface energy zone, and orthographic projection of the first surface energy zone on the substrate is positioned at the juncture of the first orientation zone and the second orientation zone and covers at least one part of the adjacent first orientation zone and second orientation zone. The phase delay film, the manufacturing method thereof, the display module and the manufacturing method thereof can reduce crosstalk and improve display performance.

Inventors

GUO YUANHUI
CHEN JIAJIA
ZHANG YU
ZHANG CHEN
ZHANG MENG

Assignees

烟台京东方材料科技有限公司
京东方科技集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. A phase retardation film, comprising: a substrate comprising first and second opposed faces; An alignment layer provided on a first surface of the substrate, including first alignment regions and second alignment regions alternately arranged with each other; The optical anisotropic layer is arranged on one side of the orientation layer, which is away from the substrate, and is provided with a first optical axis direction at a position corresponding to the first orientation zone and a second optical axis direction at a position corresponding to the second orientation zone; a guide layer provided on the second surface of the substrate, the guide layer including first surface energy regions and second surface energy regions alternately arranged with each other, the contact angle of the first surface energy regions being greater than the contact angle of the second surface energy regions; The orthographic projection of the first surface energy region on the substrate is positioned at the junction of the first orientation region and the second orientation region and covers the edge parts of the adjacent first orientation region and second orientation region.
2. The phase retardation film according to claim 1, wherein the alignment layer is made of a photo-alignment material capable of selectively forming an alignment pattern by mask exposure, and the guide layer is made of a photo-responsive wettability surface material capable of changing its surface wettability by light irradiation.
3. The phase retardation film according to claim 2, wherein the light-responsive wettability surface material is formulated as follows: 25-35 wt% of matrix resin; 15-25 wt% of lyophobic regulating monomer; 3-7wt% of a photoacid generator; 3-7wt% of a cross-linking agent; The balance being solvent.
4. The phase retardation film according to claim 3, wherein the matrix resin is an acrylic copolymer containing hydroxyl groups or carboxyl groups, the lyophobic adjustment monomer is at least one of fluoroacrylate or siliceous acrylate, the photoacid generator is an aryl onium salt photoacid generator, and the crosslinking agent is a polyfunctional acrylate.
5. The phase retardation film according to claim 1, wherein the first surface energy region is a lyophilic region having a contact angle of 40 ° or less, and the second surface energy region is a lyophobic region having a contact angle of 90 ° or more.
6. A display module, comprising: a display panel; a phase retarder film on a display side of the display panel, the phase retarder film employing the phase retarder film according to any one of claims 1 to 5, and The shading pattern layer is positioned on the display side of the display panel, comprises a plurality of shading areas which are arranged at intervals, at least partially overlaps with the orthographic projection of the first surface energy area on the substrate, is positioned at the juncture of the first orientation area and the second orientation area, and covers the edge parts of the adjacent first orientation area and second orientation area.
7. The display module of claim 6, wherein the alternating direction of the first orientation regions and the second orientation regions is a first direction, the first surface energy regions have a first width in the first direction, the light shielding regions have a second width in the first direction, the first surface energy regions coincide with a center of the light shielding regions in the first direction, and the second width is greater than or equal to the first width.
8. A method for manufacturing the phase retardation film according to any one of claims 1 to 5, comprising: providing a substrate comprising first and second opposed faces; Forming the alignment layer and the guide layer on the substrate, wherein the alignment layer includes first alignment regions and second alignment regions alternately arranged with each other, and the guide layer includes first surface energy regions and second surface energy regions alternately arranged with each other; And forming an optical anisotropic layer on one side of the orientation layer, which is away from the substrate, wherein the optical anisotropic layer has a first optical axis direction at a position corresponding to the first orientation zone and has a second optical axis direction at a position corresponding to the second orientation zone.
9. The method of manufacturing a phase retardation film according to claim 8, wherein the forming the alignment layer and the guiding layer on the substrate specifically comprises: Forming a photo-alignment material layer on a first side of the substrate, and forming a photo-responsive wetting surface material layer on a second side of the substrate; And sequentially exposing the photo-alignment material layer twice by a mask exposure mode to form an alternating pattern of the first alignment region and the second alignment region in the photo-alignment material layer, synchronously receiving exposure penetrating through the substrate in the photo-response wettability surface material layer in the process of exposing the photo-alignment material layer twice, and forming the first surface energy region at the junction of the mask patterns of the two exposures due to exposure overlapping.
10. A method for manufacturing a display module according to any one of claims 6 to 7, comprising: providing a display panel; producing a phase retardation film by the method according to any one of claims 8 or 9; attaching the phase retardation film to a display side of the display panel; and forming a shading pattern layer on one side of the phase delay film, which is away from the display panel, wherein in the process of forming the shading pattern layer, the pixel position in the display panel is taken as a reference, and a shading material is physically guided by a first surface energy region in the phase delay film and is deposited in the region where the first surface energy region is located, so that a shading region is formed.

Description

Phase delay film and manufacturing method thereof, display module and manufacturing method thereof Technical Field The disclosure relates to the technical field of display, in particular to a phase delay film and a manufacturing method thereof, a display module and a manufacturing method thereof. Background With the continuous development of display technology, three-dimensional (3D) display has become an important development trend in the display field, which can make the picture more realistic and give the user an immersive sensation. In three-dimensional display technology, patterned retarder (PATTERNED RETARDER, PR) is an important device to achieve optical separation of the left and right eyes. The phase retardation Film (Film-TYPE PATTERNED RETARDER, FPR) is a Film using a flexible Film as a substrate, forming a photoalignment layer on the substrate and performing mask exposure, and then coating a Polymer Liquid Crystal (PLC) to obtain a desired phase difference. Disclosure of Invention In order to solve at least one technical problem in the prior art, embodiments of the present disclosure provide a phase retardation film, a manufacturing method thereof, a display module and a manufacturing method thereof. In order to solve the above technical problems, the present disclosure is implemented as follows: In a first aspect, embodiments of the present disclosure provide a phase retardation film, including: a substrate comprising first and second opposed faces; An alignment layer provided on a first surface of the substrate, including first alignment regions and second alignment regions alternately arranged with each other; The optical anisotropic layer is arranged on one side of the orientation layer, which is away from the substrate, and is provided with a first optical axis direction at a position corresponding to the first orientation zone and a second optical axis direction at a position corresponding to the second orientation zone; a guide layer provided on the second surface of the substrate, the guide layer including first surface energy regions and second surface energy regions alternately arranged with each other, the contact angle of the first surface energy regions being greater than the contact angle of the second surface energy regions; The orthographic projection of the first surface energy region on the substrate is positioned at the junction of the first orientation region and the second orientation region and covers the edge parts of the adjacent first orientation region and second orientation region. The alignment layer is made of a photo-alignment material capable of selectively forming an alignment pattern by mask exposure, and the guide layer is made of a photo-responsive wettability surface material capable of changing its surface wettability by light. Illustratively, the light responsive wettable surface material is formulated as follows: 25-35 wt% of matrix resin; 15-25 wt% of lyophobic regulating monomer; 3-7wt% of a photoacid generator; 3-7wt% of a cross-linking agent; The balance being solvent. The matrix resin is exemplified by acrylic acid copolymer containing hydroxyl or carboxyl, the lyophobic regulating monomer is selected from at least one of fluoroacrylate or siliceous acrylate, the photoacid generator is selected from aryl onium salt, and the crosslinking agent is selected from multifunctional acrylate. The first surface energy region is exemplified by a lyophile region having a contact angle of less than or equal to 40 °, and the second surface energy region is exemplified by a lyophobic region having a contact angle of greater than or equal to 90 °. In a second aspect, an embodiment of the present disclosure further provides a display module, including: a display panel; A phase retardation film on the display side of the display panel, the phase retardation film employing the phase retardation film as described above, and The shading pattern layer is positioned on the display side of the display panel, comprises a plurality of shading areas which are arranged at intervals, at least partially overlaps with the orthographic projection of the first surface energy area on the substrate, is positioned at the juncture of the first orientation area and the second orientation area, and covers the edge parts of the adjacent first orientation area and second orientation area. Illustratively, the alternating arrangement direction of the first orientation regions and the second orientation regions is a first direction, the first surface energy regions have a first width in the first direction, the light shielding regions have a second width in the first direction, the first surface energy regions coincide with a center of the light shielding regions in the first direction, and the second width is greater than or equal to the first width. In a third aspect, embodiments of the present disclosure further provide a method for manufacturing a phase retardation film, which is characteri