CN109523913B - Display panel and display device - Google Patents
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- CN109523913B CN109523913B CN201811624577.4A CN201811624577A CN109523913B CN 109523913 B CN109523913 B CN 109523913B CN 201811624577 A CN201811624577 A CN 201811624577A CN 109523913 B CN109523913 B CN 109523913B
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- 239000000758 substrate Substances 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 13
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 230000001902 propagating effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is used for improving the light transmittance of the display panel and improving the transparent display effect of the display panel. The display panel comprises a light emitting area, a light transmitting area and a light guide component positioned on the first surface of the display panel; at least part of the light rays transmitted to the light emitting region from the first surface side are totally reflected in the light guide component and are emitted out through the light transmitting region.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
With the increasing development of display technologies, various new display technologies are emerging. At present, it is often desirable to provide a transparent display screen in an environment such as an exhibition hall. When the transparent display screen during operation, the user that is located the light-emitting side of transparent display screen not only can see the picture that this transparent display screen itself shows, but also can see through this transparent display screen and see the scene that is located this transparent display screen back, has greatly richened user's visual perception.
However, in the design of the transparent display screen, since the metal traces and the thin film transistors in the display screen are all made of opaque materials, the transmittance of the ambient light on the back of the display screen is insufficient, and the transparent display effect of the display screen is affected.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display apparatus, so as to improve the light transmittance of the display panel and improve the transparent display effect of the display panel.
In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes:
a light emitting region and a light transmitting region;
a light guide member on a first surface of the display panel;
at least part of the light rays transmitted to the light emitting region from one side of the first surface are totally reflected in the light guide component and are emitted out through the light transmitting region.
In another aspect, an embodiment of the present invention provides a display device, which includes the above display panel.
In the display panel and the display device provided by the embodiment of the invention, the light guide component is arranged on the first surface of the display panel, so that for the light transmitted to the display panel from one side of the first surface, the light guide component can ensure that at least part of the light transmitted through the luminous region originally is totally reflected in the light guide component, so that the transmission direction of the part of the light is changed, the part of the light can be emitted out of the display panel through the light-transmitting region, the quantity of the light shielded by the luminous region can be reduced, more light can be emitted from the light-transmitting region, the light transmittance of the display panel is improved, and the transparent display effect of the display panel is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a transparent display panel of the prior art;
FIG. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a light guide component according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of another display panel provided in an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view of another display panel provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of another display panel provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic top view of a single light-transmissive region;
fig. 8 is a schematic diagram of a display device according to an embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used to describe the substrates in the embodiments of the present invention, these substrates should not be limited by these terms. These terms are only used to distinguish the substrates from each other. For example, the first substrate may also be referred to as a second substrate, and similarly, the second substrate may also be referred to as a first substrate, without departing from the scope of embodiments of the present invention.
As shown in fig. 1, fig. 1 is a schematic cross-sectional view of a transparent display panel in the prior art, wherein the display panel includes a light emitting region 1 'and a light transmitting region 2', and a sub-pixel 10 'for emitting light is disposed in the light emitting region 1'. When the display panel is in operation, light emitted by the sub-pixels 10' reaches a user located at the light exit side of the display panel, thereby enabling the user to view a display image at the light exit side of the display panel. In addition, the ambient light on the backlight side of the display panel can be emitted through the light-transmitting region 2' and also reach the user on the light-emitting side of the display panel, so that the user can observe the object on the backlight side of the display panel, and the transparent display effect is realized. However, as shown in fig. 1, since the light emitting region 1 'includes components made of opaque materials such as metal traces and thin film transistors, for a large portion of ambient light incident from the backlight side of the display panel, as for the light traveling along the direction Z2' and the direction Z3 'in fig. 1, the light will be blocked by the light emitting region 1' during the traveling process and will not exit the display panel, and therefore, the light transmittance of the display panel is low, and the transparent display effect of the display panel is affected.
Accordingly, an embodiment of the present invention provides a display panel, as shown in fig. 2, fig. 2 is a schematic cross-sectional view of the display panel provided in the embodiment of the present invention, the display panel includes a light emitting region 1, a light transmitting region 2, and a light guide member 3 located on a first surface 510 of the display panel. At least a portion of the light propagating from the first surface 510 to the light emitting region 1 is totally reflected inside the light guide 3 and exits through the light transmitting region 2.
For example, as shown in fig. 2, the light emitting region 1 may be provided with a sub-pixel 10, when the display panel is in operation, light emitted by the sub-pixel 10 exits the display panel from the second surface 520 of the display panel, that is, the side where the second surface 520 is located is the light exit side of the display panel, and the light emitting region 1 is used for displaying a picture required to be displayed by the display panel itself. The side of the first surface 510 opposite the second surface 520 is the backlight side of the display panel. Moreover, for the light traveling from the first surface 510 side to the display panel, even if the incident direction passes through the light emitting region 1, as shown in fig. 2, the light traveling along the direction Z2 and the direction Z3, due to the arrangement of the light guide member 3, the light enters the light guide member 3, changes the traveling direction after being totally reflected inside the light guide member 3, and then exits the display panel through the light transmitting region 2 to reach the user on the light exit side of the display panel, so that the user can observe the object on the backlight side of the display panel, that is, the display panel realizes transparent display.
As can be seen from the above description of the working process of the display panel, in the embodiment of the present invention, the light guide member 3 is disposed on the first surface 510 of the display panel, so that, for the light propagating from the first surface 510 side to the display panel, the light guide member 3 is disposed to enable at least a portion of the light propagating through the light emitting region 1 to be totally reflected in the light guide member 3, so as to change the propagation direction of the portion of the light, and enable the portion of the light to exit the display panel through the light transmitting region 2, so as to reduce the amount of the light blocked by the light emitting region 1, and enable more light to exit from the light transmitting region 2, thereby improving the light transmittance of the display panel and improving the transparent display effect of the display panel.
For example, as shown in fig. 2, the light-transmitting area 2 is located between two adjacent light-emitting areas 1, so that the projection of the light-guiding member 3, which is disposed corresponding to the light-transmitting area 2, on the plane where the display panel is located at least between two adjacent light-emitting areas 1, thereby reducing the difficulty that light originally emitted to the two light-emitting areas 1 enters the light-guiding member 3.
Optionally, as shown in fig. 2 and fig. 3, fig. 3 is a schematic structural diagram of a light guide component according to an embodiment of the present invention, where the light guide component 3 includes a light incident surface 31, a light emitting surface 32, and a side surface 33 located between the light incident surface 31 and the light emitting surface 32, where the light emitting surface 32 is located on a side of the light incident surface 31 close to a light emitting side of the display panel, and the side surface is used to connect the light incident surface 31 and the light emitting surface 32; at least a portion of the light propagating from the first surface 510 to the light emitting region 1 enters the light guide member 3 through the light incident surface 31, and exits the light guide member 3 from the light exiting surface 32 after being totally reflected by the side surface 33. As shown in fig. 2, in a direction perpendicular to a plane of the display panel, the light incident surface 31 and the light emitting area 1 are arranged to have an overlapping portion, so that light rays perpendicularly emitted to the light emitting area 1 of the display panel and the overlapping portion of the light incident surface 31 can enter the light guide member 3, and the light rays are totally reflected inside the light guide member 3 and then emitted from the light transmitting area 2, thereby improving the light transmittance of the display panel. As shown in fig. 2 and fig. 3, the area of the light incident surface 31 is larger than the area of the light exiting surface 32, so that more light rays propagating from the first surface 510 side of the display panel to the light emitting region 1 enter the light guide member 3 through the light incident surface 31, and the amount of light rays exiting from the light transmitting region 2 is increased, thereby further improving the light transmittance of the display panel.
Exemplarily, as shown in fig. 2, the projection of the light emitting surface 32 on the plane of the display panel is located in the projection of the light incident surface 31 on the plane of the display panel, that is, the overlapping area between the light incident surface 31 and the light emitting surface 32 of the light guide member 3 is made as large as possible, so as to avoid excessively inclining the shape of the light guide member 3, and ensure that the included angle between the side surface 33 and the light incident surface 32 is not too small or too large, so as to avoid multiple reflections of the light inside the light guide member 3, thereby avoiding the attenuation of the light with a large intensity when the light propagates inside the light guide member 3, and thus ensuring the intensity of the light emitted from the light guide member 3.
Alternatively, as shown in fig. 3, the light guide member 3 may be in the shape of a circular truncated cone as shown in fig. 3, wherein the bottom surface with a larger area in the circular truncated cone is the light incident surface 31 of the light guide member 3, the bottom surface with a smaller area is the light emitting surface 32 of the light guide member 3, and the side surface of the circular truncated cone is the side surface 33 of the light guide member 3. In the embodiment of the present invention, the light guide member 3 is designed to be circular truncated cone-shaped as shown in fig. 3, so that the side surface 33 of the light guide member 3 forms a smooth curved surface, and the reflection action of the light rays at different positions of the side surface 33 tends to be consistent, thereby ensuring the display effect. Of course, in the embodiment of the present invention, the shape of the light guide member 3 may be designed to be a truncated pyramid, the bottom surface with a larger area in the truncated pyramid is the light incident surface 31 of the light guide member 3, the bottom surface with a smaller area is the light exit surface 32 of the light guide member 3, and the side surface of the truncated pyramid is the side surface 33 of the light guide member 3, so that the effect of changing the propagation direction of the light propagating from the first surface 510 side to the light emitting region 1 can be achieved.
Illustratively, as shown in fig. 2, the outside of the light guide member 3 includes a filler 4 surrounding a side surface 33 of the light guide member 3, the filler 4 is in contact with the side surface 33 of the light guide member 3, and a refractive index n2 of the filler 4 is lower than a refractive index n1 of the light guide member 3, so that the light is emitted to the full extent after being emitted to an interface between the side surface 33 of the light guide member 3 and the filler 4, and the light is prevented from being refracted to the filler 4 at the interface between the side surface 33 of the light guide member 3 and the filler 4, thereby increasing the amount of light that travels from the inside of the light guide member 3 to the light transmission region 2 and exits from the light transmission region 2.
Optionally, the filler 4 comprises air. The light guide 3 may be made of a material having a refractive index greater than 1, such as glass, plastic, or the like.
For example, as shown in fig. 2, the light-transmitting area 2 covers the projection of the light-emitting surface 32 on the plane where the display panel is located, so that the light entering the light-guiding member 3 is totally reflected inside the light-guiding member 3, and then emitted from the light-transmitting area 2, and the light emitted from the light-emitting surface 32 is prevented from being emitted to the light-emitting area 1 and shielded by the light-emitting area 1, so that the quantity of the light emitted from the light-transmitting area 2 can be further increased, and the light transmittance of the display panel can be improved.
Alternatively, as shown in fig. 4 and 5, fig. 4 and 5 are schematic cross-sectional views of two other display panels provided by the embodiment of the present invention, respectively, in which in the embodiment of the present invention, a protrusion 310 protruding to a side away from the light emitting surface 32 is disposed in the light incident surface 31, and as shown in fig. 4 and 5, in a direction perpendicular to a plane where the display panel is located, the protrusion 310 at least includes a first portion 3101 overlapping with the light emitting region 1, a thickness of the first portion 3101 gradually increases along a direction from the light emitting region 1 to the light transmitting region 2, in fig. 4, a surface of the protrusion 310 on the side away from the light guide is a curved surface, and in fig. 5, a cross-sectional shape of the protrusion 310 is a trapezoid. The protrusion 310 is used for converging incident light, and the first portion 3101 of the protrusion 310 can converge the light propagating to the light emitting region 1 to the light transmitting region 2, so that more light propagating from the first surface 510 side to the light emitting region 1 can be guided into the light guide member 3, thereby further improving the light transmittance of the display panel.
For example, according to the shape and size of the light-transmitting area 2, the light-guiding member 3 corresponding to the light-transmitting area 2 may be variously disposed, for example, if the area of the light-transmitting area 2 relative to the light-emitting surface 32 of the light-guiding member 3 is larger or the shape of the light-transmitting area 2 is an irregular figure, as shown in fig. 6 and 7, fig. 6 is a schematic cross-sectional view of another display panel provided in the embodiment of the present invention, and fig. 7 is a schematic top view of a single light-transmitting area, wherein the light-transmitting area 2 may be disposed to cover the light-emitting surfaces 32 of at least two light-guiding members 3, so that the area of the light-emitting surface 32 can be as large as possible, thereby increasing the amount of light emitted from the light.
As shown in fig. 6, at least two light guide members 3 are disposed around the light emitting region 1 to ensure that the light emitted to the light emitting region 1 can be emitted to one of the light guide members 3, and is emitted through the light transmitting region 2 after being fully emitted in the light guide member 3.
For example, as shown in fig. 7, when the area of the light-transmitting area 2 relative to the light-emitting surface 32 of the light guide member 3 is larger, or the shape of the light-transmitting area 2 is irregular, when the light guide member 3 is disposed, the edges of the light-emitting surfaces 32 of two adjacent light guide members 3 are tangent, and the edge of the light-emitting surface 32 close to the edge of the light-emitting area 1 is tangent to the edge of the light-emitting area 1, in a case that the areas of the light-emitting area 1 and the light-transmitting area 2 are fixed, the light-emitting surface 32 of the light guide member 3 can be maximized without overlapping the light-emitting area 1, so that after the light originally emitted to the light-emitting area 1 is totally reflected by the light guide member 3, more light can be emitted to the light-transmitting area 2 from the light-transmitting area 32, and the display panel can be emitted from the light.
Exemplarily, as shown in fig. 2, the display panel further includes a first substrate 51 and a second substrate 52 disposed opposite to each other, the second substrate 52 is located on a light emitting side of the first substrate 51 close to the display panel, the light emitting element located in the light emitting region 1 is disposed between the first substrate 51 and the second substrate 52, wherein the light guide member 3 is located on a side of the first substrate 51 away from the second substrate 52, and the light emitting surface 32 is in contact with the first substrate 51; the refractive index of the light guide member 3 is the same as that of the first substrate 51; the refractive index of the light guide member 3 is n1, the refractive index of the filler 4 is n2, and the angle θ between the light incident surface 31 and the side surface 33 of the light guide member 3 satisfies: theta is equal to or greater than arcsin (n2/n1) to ensure that light rays perpendicularly incident from the first surface 510 side can be totally reflected at the side surface 33 after entering the light guide member 3.
Illustratively, the light guide member 3 has an optical fiber structure. Optionally, the optical fiber structure may be one or more of a quartz optical fiber, a plastic optical fiber, a composite optical fiber, and the like.
As shown in fig. 8, fig. 8 is a schematic view of a display device according to an embodiment of the present invention, where the display device includes the display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 8 is only a schematic illustration, and the display device may be any electronic device with a transparent display function, such as an electronic show window, smart glasses, a vehicle-mounted display screen, a mobile phone, a tablet computer, a notebook computer, an electronic paper book, or a television.
In the display device provided by the embodiment of the invention, the light guide component is arranged on the first surface of the display panel, so that for the light transmitted to the display panel from one side of the first surface, the light guide component can ensure that at least part of the light transmitted through the luminous region originally is totally reflected in the light guide component, so that the transmission direction of the part of the light is changed, the part of the light can be emitted out of the display panel through the light-transmitting region, the quantity of the light shielded by the luminous region can be reduced, more light can be emitted from the light-transmitting region, the light transmittance of the display panel is improved, and the transparent display effect of the display panel is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A display panel, comprising:
a light emitting region and a light transmitting region;
a light guide member on a first surface of the display panel;
at least part of light rays transmitted to the light emitting region from one side of the first surface are totally reflected in the light guide component and are emitted out through the light transmitting region;
the light-transmitting area is positioned between two adjacent light-emitting areas;
the light guide component comprises a light incident surface, a light emergent surface and a side surface, wherein the light incident surface and the light emergent surface are arranged oppositely, and the side surface is positioned between the light incident surface and the light emergent surface;
at least part of the light rays transmitted to the light emitting region from one side of the first surface enter the light guide component through the light incident surface, and are emitted out of the light guide component from the light emitting surface after being totally reflected on the side surface;
the area of the light incident surface is larger than that of the light emergent surface, and the light incident surface and the light emitting region have overlapped parts in the direction perpendicular to the plane of the display panel;
the light incident surface comprises a convex part which is convex towards one side away from the light emergent surface, in the direction vertical to the plane of the display panel, the convex part at least comprises a first part overlapped with the light emitting area, and the thickness of the first part is gradually increased along the direction from the light emitting area to the light transmitting area;
the light-transmitting area covers the light emergent surfaces of the at least two light guide components, and the at least two light guide components are arranged around the light emitting area;
the edges of the light emitting surfaces of the two adjacent light guide components are tangent, and the edge of the light emitting surface close to the edge of the light emitting area is tangent to the edge of the light emitting area.
2. The display panel according to claim 1, wherein the outside of the light guide member includes a filler surrounding the side of the light guide member, the filler being in contact with the side of the light guide member, the filler having a refractive index lower than that of the light guide member.
3. The display panel of claim 2, wherein the filler comprises air.
4. The display panel according to claim 1,
the light-transmitting area covers the projection of the light-emitting surface on the plane where the display panel is located.
5. The display panel according to claim 1,
the projection of the light emergent surface on the plane where the display panel is located in the projection of the light incident surface on the plane where the display panel is located.
6. The display panel according to claim 5, wherein the light guide member is shaped as a circular truncated cone, the bottom surface of the circular truncated cone with a larger area is a light incident surface of the light guide member, the bottom surface of the circular truncated cone with a smaller area is a light emergent surface of the light guide member, and the side surface of the circular truncated cone is a side surface of the light guide member.
7. The display panel according to claim 2, wherein the display panel further comprises a first substrate and a second substrate disposed opposite to each other, the light guide member is disposed on a side of the first substrate away from the second substrate, and the light emitting surface contacts the first substrate;
the refractive index of the light guide member is the same as that of the first substrate; the refractive index of the light guide member is n1, the refractive index of the filler is n2, and an included angle θ between the light incident surface and the side surface of the light guide member satisfies: theta is larger than or equal to arcsin (n2/n 1).
8. The display panel according to claim 1, wherein the light guide member is an optical fiber structure.
9. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624577.4A CN109523913B (en) | 2018-12-28 | 2018-12-28 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624577.4A CN109523913B (en) | 2018-12-28 | 2018-12-28 | Display panel and display device |
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| CN109523913A CN109523913A (en) | 2019-03-26 |
| CN109523913B true CN109523913B (en) | 2021-07-06 |
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| CN201811624577.4A Active CN109523913B (en) | 2018-12-28 | 2018-12-28 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109493746A (en) * | 2018-12-29 | 2019-03-19 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110517595A (en) * | 2019-08-30 | 2019-11-29 | 京东方科技集团股份有限公司 | A transparent display panel and transparent display |
| CN112216209B (en) * | 2020-10-14 | 2022-06-14 | 厦门天马微电子有限公司 | Display panel and electronic equipment |
| CN113539134B (en) * | 2021-07-30 | 2023-07-04 | 上海天马微电子有限公司 | Display module and display device |
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| CN1501144A (en) * | 2002-11-13 | 2004-06-02 | 三星电子株式会社 | Reflector for backlight assembly and backlight assembly using same |
| CN1696794A (en) * | 2005-01-20 | 2005-11-16 | 友达光电股份有限公司 | Semi-transmissive and semi-reflective liquid crystal display panel and manufacturing method and method for improving backlight efficiency |
| CN101398568A (en) * | 2007-09-27 | 2009-04-01 | 株式会社日立显示器 | Planar light emitting element, image display element, and image display device using the same |
| CN106205412A (en) * | 2014-12-19 | 2016-12-07 | 财团法人工业技术研究院 | Display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7085444B2 (en) * | 2003-02-25 | 2006-08-01 | Eastman Kodak Company | Porous optical switch films |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501144A (en) * | 2002-11-13 | 2004-06-02 | 三星电子株式会社 | Reflector for backlight assembly and backlight assembly using same |
| CN1696794A (en) * | 2005-01-20 | 2005-11-16 | 友达光电股份有限公司 | Semi-transmissive and semi-reflective liquid crystal display panel and manufacturing method and method for improving backlight efficiency |
| CN101398568A (en) * | 2007-09-27 | 2009-04-01 | 株式会社日立显示器 | Planar light emitting element, image display element, and image display device using the same |
| CN106205412A (en) * | 2014-12-19 | 2016-12-07 | 财团法人工业技术研究院 | Display device |
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