CN-122018196-A - Display module

CN122018196ACN 122018196 ACN122018196 ACN 122018196ACN-122018196-A

Abstract

The application discloses a display module, which comprises a display device, a dimming component, a magneto-optical modulating component and a magneto-optical medium layer, wherein the display device comprises a plurality of sub-pixels and a semi-transparent semi-reflective layer, the dimming component is arranged on one side of a light emitting surface of the display device and comprises a magneto-optical modulating layer and a polarizing piece arranged on one side of the magneto-optical modulating layer far away from the display device, the magneto-optical modulating layer comprises a stacked magnetic field shielding layer, a magnetic supply piece and a magneto-optical medium layer, the magnetic field shielding layer is positioned on one side of the magnetic supply piece close to the display device, the polarizing piece is used for modulating incident environment into first linearly polarized light, the magneto-optical medium layer is used for modulating the first linearly polarized light into second linearly polarized light under the driving of the magnetic supply piece, the semi-transparent semi-reflective layer is used for reflecting the second linearly polarized light to the magneto-optical medium layer, and the magneto-optical medium layer is used for modulating the second linearly polarized light into third linearly polarized light, and the third polarization angle of the third linearly polarized light is perpendicular to the first polarization angle of the first linearly polarized light. Through the arrangement, the interference of ambient light is isolated, the contrast ratio is improved, and the light transmittance of the sub-pixels is ensured.

Inventors

FAN TING
BI JINGZE
WU TING
LIU YUTING
LI JIEWEI

Assignees

惠科股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (10)

1. A display module, comprising: the display device comprises a plurality of sub-pixels which are spaced from each other, wherein the display device comprises a semi-transparent semi-reflective layer; The light adjusting component is arranged on one side of the light emitting surface of the display device and comprises a magneto-optical modulation layer and a polarizing piece, wherein the polarizing piece is arranged on one side of the magneto-optical modulation layer far away from the display device; The light modulating component is used for modulating the environment incident to the light modulating component into first linearly polarized light, and the first linearly polarized light has a first polarization angle; the magneto-optical medium layer is used for modulating the first linear polarized light into second linear polarized light under the drive of the magnetic supply piece, the semi-transparent and semi-reflective layer is used for reflecting the second linear polarized light incident into the magneto-optical medium layer, and the magneto-optical medium layer is used for modulating the second linear polarized light incident into the magneto-optical medium layer into third linear polarized light, wherein the third linear polarized light has a third polarization angle, and the third polarization angle is perpendicular to the first polarization angle; The dimming component is configured to allow light rays emitted by the sub-pixels to exit.
2. The display module assembly of claim 1, wherein the display module assembly comprises, The magneto-optical medium layer is arranged corresponding to the sub-pixels; Or, the magneto-optical medium layer is disposed corresponding to a display area of the display device.
3. The display module assembly of claim 2, wherein the display module assembly comprises, The magneto-optical medium layer comprises a magneto-optical medium material; The magneto-optical medium layer is made of any one of yttrium iron garnet, bismuth-doped rare earth iron garnet and terbium aluminum garnet.
4. The display module assembly of claim 2, wherein the display module assembly comprises, The magneto-optical medium layer is a composite magneto-optical structure formed by connecting at least two magneto-optical medium materials in series, and the dispersion of the at least two magneto-optical medium materials is mutually compensated.
5. The display module assembly of claim 2, wherein the display module assembly comprises, The thickness of the magneto-optical medium layer is 2-10 μm.
6. The display module assembly of claim 1, wherein the display module assembly comprises, The magnetic field shielding layer is arranged corresponding to the position between two adjacent sub-pixels; Or the display device comprises a plurality of pixel units, each pixel unit comprises at least three sub-pixels, and the magnetic field shielding layer is arranged corresponding to the position between two adjacent pixel units.
7. The display module assembly of claim 1, wherein the display module assembly comprises, The material of the magnetic field shielding layer comprises permalloy material.
8. The display module assembly of claim 1, wherein the display module assembly comprises, The magnetic supply piece is arranged corresponding to the position between two adjacent sub-pixels; and/or the magnetic supply piece comprises a permanent magnet, wherein the material of the permanent magnet comprises a neodymium iron boron permanent magnet material.
9. The display module assembly of any one of claims 1-8, wherein, The display device comprises a display panel, wherein the display panel is an organic light-emitting diode display panel; The display panel comprises the sub-pixel, wherein the sub-pixel comprises a first electrode, a light emitting layer and a second electrode which are arranged in a stacked mode, the second electrode is located on one side, close to the light adjusting component, of the light emitting layer, and the second electrode is used as the semi-transparent and semi-reflective layer.
10. The display module assembly of any one of claims 1-8, wherein, The display device comprises a display panel, wherein the display panel is a liquid crystal display panel; the semi-transparent and semi-reflective layer is arranged on one side of the light emitting surface of the display panel and is positioned between the display panel and the dimming component.

Description

Display module Technical Field The application relates to the technical field of display, in particular to a display module. Background When the ambient light irradiates the surface of the display panel, part of light penetrates the surface layer of the display panel, and is reemitted after being reflected and scattered for many times among all layers of media in the display panel, and the ambient light is mixed with the light emitted by the sub-pixels of the display panel, so that the problems of gray development, color level bleaching and significant reduction of contrast of a black picture are easily caused. In the related art, in order to reduce interference of internally reflected ambient light, it is generally adopted to increase brightness of a display panel, form diffuse reflection by a surface coating, circular polarizer technique, etc. to reduce interference of ambient light. However, increasing the brightness of the display panel tends to cause problems such as increased power consumption, accelerated aging of the light-emitting layer, color shift, and life-span degradation, the surface coating tends to reduce image sharpness and color saturation, and the circular polarizer technique can block light emitted from the sub-pixels, resulting in reduced transmittance and reduced brightness of light emitted from the sub-pixels, and if the power is increased to maintain the brightness, the energy consumption is increased and the heating problem occurs. Disclosure of Invention The application mainly provides a display module to shield the interference of the reflection of the ambient light in the display panel, solve the problems of gray development, color gradation bleaching and contrast reduction of the black picture of the display panel, ensure the transmittance of the light emitted by the sub-pixels and not weaken the color gamut. In order to solve the technical problems, the application adopts a technical scheme that a display module comprises: the display device comprises a plurality of sub-pixels which are spaced from each other, wherein the display device comprises a semi-transparent semi-reflective layer; The light adjusting component is arranged on one side of the light emitting surface of the display device and comprises a magneto-optical modulation layer and a polarizing piece, wherein the polarizing piece is arranged on one side of the magneto-optical modulation layer far away from the display device; The light modulating component is used for modulating the environment incident to the light modulating component into first linearly polarized light, and the first linearly polarized light has a first polarization angle; the magneto-optical medium layer is used for modulating the first linear polarized light into second linear polarized light under the drive of the magnetic supply piece, the semi-transparent and semi-reflective layer is used for reflecting the second linear polarized light incident into the magneto-optical medium layer, and the magneto-optical medium layer is used for modulating the second linear polarized light incident into the magneto-optical medium layer into third linear polarized light, wherein the third linear polarized light has a third polarization angle, and the third polarization angle is perpendicular to the first polarization angle; The dimming component is configured to allow light rays emitted by the sub-pixels to exit. In some embodiments, the magneto-optical medium layer is disposed corresponding to the sub-pixel; Or, the magneto-optical medium layer is disposed corresponding to a display area of the display device. In some embodiments, the magneto-optical medium layer comprises a magneto-optical medium material; The magneto-optical medium layer is made of any one of yttrium iron garnet, bismuth-doped rare earth iron garnet and terbium aluminum garnet. In some embodiments, the magneto-optical medium layer is a composite magneto-optical structure formed by connecting at least two magneto-optical medium materials in series, and dispersions of the at least two magneto-optical medium materials compensate each other. In some embodiments, the magneto-optical medium layer has a thickness of 2-10 μm. In some embodiments, the magnetic field shielding layer is disposed corresponding to a position between two adjacent sub-pixels; Or the display device comprises a plurality of pixel units, each pixel unit comprises at least three sub-pixels, and the magnetic field shielding layer is arranged corresponding to the position between two adjacent pixel units. In some embodiments, the material of the magnetic field shielding layer comprises a permalloy material. In some embodiments, the magnetic supplying member is disposed corresponding to a position between two adjacent sub-pixels; and/or the magnetic supply piece comprises a permanent magnet, wherein the material of the permanent magnet comprises a neodymium iron boron permanent magnet material. In some embodiments, the displ