CN117075368A - display screen - Google Patents
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- CN117075368A CN117075368A CN202311035579.0A CN202311035579A CN117075368A CN 117075368 A CN117075368 A CN 117075368A CN 202311035579 A CN202311035579 A CN 202311035579A CN 117075368 A CN117075368 A CN 117075368A
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- Prior art keywords
- light source
- grating
- light
- waveguide assembly
- display device
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Planar Illumination Modules (AREA)
Abstract
本申请涉及一种显示设备，该显示设备包括背光组件、第一光源、波导组件、至少一个第一光栅、至少一个第二光栅以及第二光源。第一光源位于背光组件上。波导组件位于第一光源上。第一光栅位于波导组件内。第二光栅位于波导组件内。第二光源位于波导组件的一侧，其中第二光源在水平方向上与波导组件重叠，第一光栅与第二光栅配置以控制第二光源出光。由于显示设备具有第一光源以及第二光源，且波导组件内有第一光栅与第二光栅控制第二光源出光，在防窥模式时，可以只开启第一光源。让可视角仅有约45度。在分享模式时可以同时开启第一光源与第二光源，使得两个光源发出的光互补，让可视角达到约70度。
The present application relates to a display device, which includes a backlight assembly, a first light source, a waveguide assembly, at least one first grating, at least one second grating, and a second light source. The first light source is located on the backlight assembly. The waveguide assembly is located on the first light source. The first grating is located within the waveguide assembly. The second grating is located within the waveguide assembly. The second light source is located on one side of the waveguide component, where the second light source overlaps the waveguide component in the horizontal direction, and the first grating and the second grating are configured to control the light emission from the second light source. Since the display device has a first light source and a second light source, and the first grating and the second grating in the waveguide assembly control the light emission of the second light source, only the first light source can be turned on in the anti-peep mode. The viewing angle is only about 45 degrees. In the sharing mode, the first light source and the second light source can be turned on at the same time, so that the light emitted by the two light sources complement each other and the viewing angle reaches approximately 70 degrees.
Description
Technical Field
The application relates to the field of display, in particular to display equipment.
Background
Most of today's displays can be displayed at a wide viewing angle, i.e. information on the display screen can be shared within a range. Accordingly, in order to meet the needs of users, the privacy display has become a mainstream product. The peep-proof display is a display with a narrow viewing angle, and information on a screen cannot be seen as long as the viewing angle exceeds a certain value.
However, the mainstream peep-proof display is to attach a light control film (Light Control Film, LCF) to a common wide-angle display to control the light-emitting angle of the display. Therefore, the mainstream peep-proof display can not be switched to the sharing mode according to the requirement.
Disclosure of Invention
In one aspect of the present application, a display apparatus is provided.
According to some embodiments of the application, a display device includes: the light source device comprises a backlight assembly, a first light source, a waveguide assembly, at least one first grating, at least one second grating and a second light source. The first light source is positioned on the backlight assembly. The waveguide assembly is positioned on the first light source. The first grating is located within the waveguide assembly. The second grating is located within the waveguide assembly. The second light source is positioned on one side of the waveguide assembly, wherein the second light source is overlapped with the waveguide assembly in the horizontal direction, and the first grating and the second grating are configured to control the second light source to emit light.
In one embodiment of the present application, the slit width of the first grating is smaller than the slit width of the second grating.
In one embodiment of the present application, the first grating and the second grating are disposed on the bottom surface of the waveguide assembly.
In an embodiment of the present application, the number of the first gratings and the second gratings is plural, and the first gratings and the second gratings are alternately arranged in the waveguide assembly.
In an embodiment of the present application, at least two of the first grating, the second grating and the first light source do not overlap in a vertical direction.
In an embodiment of the present application, the display apparatus further includes a first diffusion sheet, a prism, and a second diffusion sheet. The first diffuser is positioned on the waveguide assembly. The prism is positioned on the first diffusion sheet. The second diffusion sheet is positioned on the prism.
In an embodiment of the application, the display device further comprises a third light source. The third light source is positioned on one side of the waveguide assembly opposite to the second light source, wherein the third light source is overlapped with the waveguide assembly in the horizontal direction.
In one embodiment of the present application, the prism is located between the first diffusion sheet and the second diffusion sheet.
In one embodiment of the present application, the prism, the first diffusion sheet and the second diffusion sheet completely cover the first light source in a vertical direction.
In one embodiment of the present application, the second light source is not overlapped with the prism, the first diffusion sheet and the second diffusion sheet in the vertical direction.
In the above embodiment of the present application, since the display device has the first light source and the second light source, and the first grating and the second grating are disposed in the waveguide assembly to control the second light source to emit light, only the first light source may be turned on in the peep-proof mode. Allowing a viewing angle of only about 45 degrees. In the sharing mode, the first light source and the second light source can be turned on simultaneously, so that the light emitted by the two light sources is complementary, and the visual angle reaches about 70 degrees.
Drawings
The present disclosure is best understood from the following detailed description when read with the accompanying drawing figures. Note that the various features are not drawn to scale in accordance with standard practices in the industry. Indeed, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the application.
Fig. 2 is a partial enlarged view of the first grating and the second grating of fig. 1.
Fig. 3 is a schematic view of light emitted from the first light source and the second light source in fig. 1.
Fig. 4 is a schematic view of a display device according to another embodiment of the present application.
Reference numerals illustrate:
100. 100a display device
110 first light source
120 backlight assembly
130 waveguide assembly
131 bottom surface
140 first grating
150 second grating
160 second light source
160a third light source
170 first diffusion sheet
180 prism
190 second diffusion sheet
L incident light
L1, L2 diffracted light
L0, L11, L12 light beam
θ1, θ2, winding angle
d. d1, d2 slit width
Detailed Description
The following disclosure of embodiments provides many different embodiments, or examples, for implementing different features of the provided objects. Specific examples of components and arrangements are described below to simplify the present disclosure. Of course, the examples are merely examples and are not intended to be limiting. Further, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Spatially relative terms, such as "below … …," "below … …," "lower," "above … …," "upper," and the like, may be used herein for ease of description to describe one component or feature's relationship to another component or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Fig. 1 shows a schematic diagram of a display device 100 according to an embodiment of the application. Referring to fig. 1, a display apparatus 100 includes a backlight assembly 120, a first light source 110, a waveguide assembly 130, at least one first grating 140, at least one second grating 150, and a second light source 160. The first light source 110 is positioned on the backlight assembly 120. The waveguide assembly 130 is located on the first light source 110. The first grating 140 is located within the waveguide assembly 130. The second grating 150 is located within the waveguide assembly 130. The second light source 160 is located at one side of the waveguide assembly 130, wherein the second light source 160 overlaps the waveguide assembly 130 in a horizontal direction, and the first grating 140 and the second grating 150 are configured to control the light output of the second light source 160 (which will be described in detail in fig. 2). The first grating 140 and the second grating 150 are disposed on the bottom surface 131 of the waveguide assembly 130. In some embodiments, the number of first gratings 140 and second gratings 150 is a plurality, and the first gratings 140 and second gratings 150 alternate within the waveguide assembly 130. In fig. 1, the first grating 140 and the second grating 150 are shown as four groups, but more or fewer first gratings 140 and second gratings 150 may be used in practical applications.
At least two of the first grating 140, the second grating 150, and the first light source 110 do not overlap in a vertical direction, for example, the first light source 110 is located below a space between the first grating 140 of one group and the second grating 150 of the other group, but the present application is not limited thereto. Further, the first gratings 140 and the second gratings 150 of the same group are adjacent in the horizontal direction. In fig. 1, the first light sources 110 are shown as five, but more or fewer first light sources 110 may be used in practical applications. The waveguide assembly 130 is configured such that light from the second light source 160 is transmitted by total internal reflection and diffracted out through the first grating 140 and the second grating 150. The backlight assembly 120 mainly reflects the light emitted from the first light source 110, so that the light is almost emitted upwards, and has a narrow viewing angle (as will be described in detail in fig. 3).
In some embodiments, the first grating 140 and the second grating 150 may be formed using etching the waveguide assembly 130. For example, a photoresist or etch stop layer is coated on the waveguide assembly 130; then, patterning the photoresist or etching stop layer to expose the openings at the predetermined locations of the first grating 140 and the second grating 150; the waveguide assembly 130 is then etched to finally form the first grating 140 and the second grating 150. In some embodiments, the first grating 140 and the second grating 150 may be formed simultaneously, and in other embodiments, the first grating 140 and the second grating 150 may be formed in multiple different steps.
Fig. 2 shows a partial enlarged view of the first grating 140 and the second grating 150 of fig. 1. Reference is made to fig. 1 and 2. When the incident light L from the second light source 160 irradiates the first grating 140 and the second grating 150, the incident light L is diffracted, for example, the diffracted light L1 is generated through the first grating 140, and the diffracted light L2 is diffracted through the second grating 150. The diffracted light L1 and the diffracted light L2 have a diffraction angle θ1 and a diffraction angle θ2, respectively, and at this time, the relationship between the diffraction angle and the incident angle corresponds to:
wherein θ is m For the diffraction angle, m is the diffraction order (m=1 in this embodiment), θ i N is the refractive index of the waveguide assembly 130 and d is the slit width of the grating for the angle of incidence. As can be seen from the above equation and fig. 2, since the slit width d1 of the first grating 140 is smaller than the slit width d2 of the second grating 150, the winding angle θ1 is smaller than the winding angle θ2 (note that, due to the characteristics of the arcsine function, the term "smaller" includes the calculation of positive and negative values, and not only the magnitude of the absolute value of the angle, if the slit width d is too small, the calculated winding angle is negative, which means that the incident light L and the diffracted light L1 are on the same side of the grating normal line), and therefore, the first grating 140 will mainly wind out the left side of the second light source 160, and the second grating 150 will mainly wind out the right side of the second light source 160 (see fig. 3). In the present embodiment, the first grating 140 is disposed on the left side of the second grating 150, but in practical application, the first grating 140 may be disposed on the right side of the second grating 150.
Fig. 3 shows a schematic view of the light output of the first light source 110 and the second light source 160 of fig. 1. Referring to fig. 1 and 3, in the peep-proof mode, the display device 100 may only turn on the first light source 110. At this time, the backlight assembly 120 has a narrower light emitting angle corresponding to the light beam L0, so that the peep-proof effect can be achieved. In the sharing mode, the first light source 110 and the second light source 160 are turned on at the same time. At this time, due to the grating diffraction principle described above, the light emitted from the second light source 160 is divided into two parts of a light beam L11 and a light beam L12, wherein the light beam L11 is a set of the diffracted light L1 of fig. 2, and the light beam L12 is a set of the diffracted light L2 of fig. 2. The light beams L11 and L12 are complementary to the light beam L0 to achieve a wide viewing angle sharing mode, as shown in the right diagram of fig. 3.
Referring to fig. 1, the display apparatus 100 further includes a first diffusion sheet 170, a prism 180, and a second diffusion sheet 190. The first diffuser 170 is positioned on the waveguide assembly 130. The prism 180 is positioned on the first diffusion sheet 170. The second diffusion sheet 190 is positioned on the prism 180. That is, the waveguide assembly 130 is positioned between the first diffusion sheet 170 and the backlight assembly 120, the first diffusion sheet 170 is positioned between the waveguide assembly 130 and the prism 180, and the prism 180 is positioned between the first diffusion sheet 170 and the second diffusion sheet 190. The first diffusion sheet 170, the prism 180, and the second diffusion sheet 190 and the waveguide assembly 130 overlap in a vertical direction and cover the first light source 110, the first grating 140, and the second grating 150. The second light source 160 does not overlap the prism 180, the first diffusion sheet 170, and the second diffusion sheet 190 in the vertical direction. The prism 180 is configured to increase the brightness of the emitted light, and the first diffusion sheet 170 and the second diffusion sheet 190 are configured to increase the uniformity of the light. In some embodiments, the first diffusion sheet 170 and the second diffusion sheet 190 include Soft sheets (Soft sheets), but the present application is not limited thereto.
It should be appreciated that the connection relationships, materials and functions of the components described above will not be repeated, and the above description is clear. In the following description, other types of display devices will be described.
Fig. 4 shows a schematic diagram of a display device 100a according to another embodiment of the present application. Referring to fig. 4, a display apparatus 100 includes a backlight assembly 120, a first light source 110, a waveguide assembly 130, at least one first grating 140, at least one second grating 150, and a second light source 160. The present embodiment is different from the embodiment of fig. 1 in that, in the present embodiment, the display apparatus 100a further includes a third light source 160a. The third light source 160a is located at a side of the waveguide assembly 130 opposite to the second light source 160, wherein the third light source 160a overlaps the waveguide assembly 130 in a horizontal direction. The third light source 160a is opposite to the second light source 160 such that the waveguide assembly 130 is positioned between the second light source 160 and the third light source 160a. In use, the second light source 160 and the third light source 160a can emit light simultaneously and diffract through the first grating 140 and the second grating 150 to form the light beams L11 and L12 in fig. 3. In the following, when the third light source 160a and the second light source 160 emit light at the same time, the light emitted by the two light sources respectively passes through the diffraction directions of the first grating 140 and the second grating 150.
Specifically, when the third light source 160a emits light, the direction of the incident light is opposite to the second light source 160 (i.e., from right Fang Rushe). At this time, when the incident light enters the first grating 140, since the slit width d1 of the first grating 140 is smaller, the calculated diffraction angle will be smaller with reference to the above-mentioned diffraction angle calculation formula, and the diffracted light will be on the same side (i.e. right side) as the normal line of the incident light. The slit width d2 of the second grating 150 is larger, so that when the incident light from the third light source 160a enters the second grating 150, the diffraction angle will be larger, and the diffracted light passing through the second grating 150 will be on the opposite side (i.e. on the left side) of the grating normal. Therefore, in the present embodiment, when the third light source 160a and the second light source 160 emit light simultaneously, the light beam L11 in fig. 3 is composed of the plurality of diffracted lights L1 of the second light source 160 through the first grating 140 and the plurality of diffracted lights of the third light source 160a through the second grating 150. The light beam L12 is composed of a plurality of diffracted lights L2 of the second light source 160 through the second grating 150 and a plurality of diffracted lights of the third light source 160a through the first grating 140.
In summary, since the display device has the first light source and the second light source, and the first grating and the second grating are disposed in the waveguide assembly to control the second light source to emit light, only the first light source can be turned on in the peep-proof mode, so that the viewing angle is only about 45 degrees. In the sharing mode, the first light source and the second light source can be turned on simultaneously, so that the light emitted by the two light sources is complementary, and the visual angle reaches about 70 degrees.
The foregoing has outlined features of several embodiments so that those skilled in the art may better understand the embodiments of the application. Those skilled in the art should appreciate that they may readily use the present application as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A display device, characterized by comprising:
a backlight assembly;
a first light source on the backlight assembly;
a waveguide assembly located on the first light source;
at least one first grating located within the waveguide assembly;
at least one second grating located within the waveguide assembly; and
and the second light source is positioned on one side of the waveguide assembly, wherein the second light source is overlapped with the waveguide assembly in the horizontal direction, and the first grating and the second grating are configured to control the second light source to emit light.
2. The display device of claim 1, wherein a slit width of the first grating is smaller than a slit width of the second grating.
3. The display device of claim 1, wherein the first grating and the second grating are disposed on a bottom surface of the waveguide assembly.
4. The display device of claim 1, wherein the number of first gratings and the number of second gratings is a plurality, and the plurality of first gratings and the plurality of second gratings are alternately disposed within the waveguide assembly.
5. The display device of claim 4, wherein at least two of the first grating, the second grating, and the first light source are non-overlapping in a vertical direction.
6. The display device of claim 1, wherein the display device further comprises:
a first diffuser located on the waveguide assembly;
a prism positioned on the first diffusion sheet; and
and the second diffusion sheet is positioned on the prism.
7. The display device of claim 1, wherein the display device further comprises:
and the third light source is positioned on one side of the waveguide assembly, which is opposite to the second light source, and the third light source is overlapped with the waveguide assembly in the horizontal direction.
8. The display device of claim 6, wherein the prism is located between the first diffuser and the second diffuser.
9. The display device of claim 6, wherein the prism, the first diffusion sheet, and the second diffusion sheet completely cover the first light source in a vertical direction.
10. The display device according to claim 6, wherein the second light source is not overlapped with the prism, the first diffusion sheet, and the second diffusion sheet in a vertical direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311035579.0A CN117075368A (en) | 2023-08-16 | 2023-08-16 | display screen |
| TW112131331A TW202509542A (en) | 2023-08-16 | 2023-08-21 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311035579.0A CN117075368A (en) | 2023-08-16 | 2023-08-16 | display screen |
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| Publication Number | Publication Date |
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| CN117075368A true CN117075368A (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311035579.0A Pending CN117075368A (en) | 2023-08-16 | 2023-08-16 | display screen |
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| CN (1) | CN117075368A (en) |
| TW (1) | TW202509542A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640039A (en) * | 2009-12-02 | 2012-08-15 | 三菱电机株式会社 | Liquid crystal display device |
| CN108050439A (en) * | 2018-01-03 | 2018-05-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US20180156963A1 (en) * | 2015-03-30 | 2018-06-07 | Leia Inc. | 2d/3d mode-switchable electronic display with dual layer backlight |
| CN110462285A (en) * | 2017-03-25 | 2019-11-15 | 镭亚股份有限公司 | Mode switchable backlight, privacy display and method |
| US20200225471A1 (en) * | 2019-01-14 | 2020-07-16 | Digilens Inc. | Holographic Waveguide Display with Light Control Layer |
| CN111492305A (en) * | 2017-12-18 | 2020-08-04 | 镭亚股份有限公司 | Switchable mode backlight, display and method |
| CN115210634A (en) * | 2020-03-02 | 2022-10-18 | 镭亚股份有限公司 | Static image enhanced privacy display, privacy display system with switchable modes and method |
-
2023
- 2023-08-16 CN CN202311035579.0A patent/CN117075368A/en active Pending
- 2023-08-21 TW TW112131331A patent/TW202509542A/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640039A (en) * | 2009-12-02 | 2012-08-15 | 三菱电机株式会社 | Liquid crystal display device |
| US20180156963A1 (en) * | 2015-03-30 | 2018-06-07 | Leia Inc. | 2d/3d mode-switchable electronic display with dual layer backlight |
| CN110462285A (en) * | 2017-03-25 | 2019-11-15 | 镭亚股份有限公司 | Mode switchable backlight, privacy display and method |
| CN111492305A (en) * | 2017-12-18 | 2020-08-04 | 镭亚股份有限公司 | Switchable mode backlight, display and method |
| CN108050439A (en) * | 2018-01-03 | 2018-05-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US20200225471A1 (en) * | 2019-01-14 | 2020-07-16 | Digilens Inc. | Holographic Waveguide Display with Light Control Layer |
| CN115210634A (en) * | 2020-03-02 | 2022-10-18 | 镭亚股份有限公司 | Static image enhanced privacy display, privacy display system with switchable modes and method |
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| Publication number | Publication date |
|---|---|
| TW202509542A (en) | 2025-03-01 |
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Effective date of registration: 20240111 Address after: Building H3, K2 District, Shenchao Optoelectronic Technology Park, Minqing Road North, Longhua District, Shenzhen City, Guangdong Province, 518100 Applicant after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Applicant after: Interface Technology (Chengdu) Co., Ltd. Applicant after: GENERAL INTERFACE SOLUTION Ltd. Address before: 611731 No. 689, Hezuo Road, West District, hi tech Zone, Chengdu, Sichuan Applicant before: Interface Technology (Chengdu) Co., Ltd. Applicant before: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Applicant before: Yicheng Photoelectric (Wuxi) Co.,Ltd. Applicant before: GENERAL INTERFACE SOLUTION Ltd. |