TWI795756B - Display device - Google Patents

Abstract

A display element includes a polyhedron structure and a half mirror. The polyhedron structure includes a first plate, a second plate, and a first top plate and a first bottom plate connecting the first plate and the second plate. The first plate, the second plate, the first top plate and the first bottom plate substantially surround a first space. The first plate and the second plate are arranged oppositely. The half mirror is arranged in the first space, and the angle between the half mirror and the first plate is from 30 degree to 60 degree.

Description

display device

The present invention relates to a display element and a display device, and in particular to a display element including a half-transmissive mirror and a display device.

At present, many public transportation means (such as buses, subways, trains, etc.) will affix printed advertising stickers on the body. In order to maximize the area where advertisements can be placed on the car body, some advertisement stickers will be covered on the car windows. These advertising stickers often have a perforated structure so that they do not block the sight of passengers. However, if this kind of advertising sticker is used, the advertising sticker on the vehicle body needs to be torn off every time the advertising content is changed, and then a new advertising sticker is replaced. In addition to consuming the cost of producing advertising stickers in this way, the torn waste products cannot be reused.

The invention provides a display element, which has the ability of light transmission and light emission.

The invention provides a display device, which has the ability of transmitting light and displaying pictures.

At least one embodiment of the present invention provides a display element, including a polyhedron structure and a half-transmissive mirror. The polyhedron structure includes a first plate body, a second plate body and a connecting Connect the first top board and the first bottom board of the first board body and the second board body. The first board, the second board, the first top board and the first bottom board substantially surround the first space. The first plate body and the second plate system are arranged oppositely. The half-transmissive mirror is arranged in the first space, and the included angle between the half-transparent mirror and the first bottom plate is 30 degrees to 60 degrees.

At least one embodiment of the present invention provides a display device including a transparent display screen. The transparent display screen includes a plurality of first display elements arranged in an array. Each first display element includes a first polyhedron structure, a half-transmissive mirror and a first pixel circuit. The first polyhedron structure includes a first plate body, a second plate body, and a first top plate and a first bottom plate connecting the first plate body and the second plate body. The first board, the second board, the first top board and the first bottom board substantially surround the first space. The first plate body and the second plate system are arranged oppositely. The half-transmissive mirror is arranged in the first space. The included angle between the half-penetrating mirror and the first bottom plate is 30 degrees to 60 degrees. The first pixel circuit is distributed on the first top board, the first bottom board, the first board body and the second board body. The first pixel circuits of adjacent first display elements are electrically connected to each other.

1: Display device

10, 20, 30, 40, 50, 50a, 60, 60a: display components

100: Polyhedral Structure

110: The first board body

120: the second plate body

130: the first top plate

140: The first bottom plate

150: The third board body

160: The fourth board

190: inclined board

200: half mirror

200a: total reflection mirror

BM: shading layer

BS: rear side

C: Capacitance

CL1, CL2: connection line

DL: data line

DL1: the first data line

DL2: the second data line

DL3: third data line

E1, E2, E3, E4: transfer electrodes

FS: front side

IL, IL1, IL2, OL: Light

L1 first light-emitting element

L2: Second light-emitting element

L3: The third light-emitting element

NTD1, NTD2: non-transparent display screen

OP: opening

PL1: First power line

PL2: Second power line

SL: scan line

SP1: First Space

SP1a: First Subspace

SP2a: Second Subspace

T1: The first active component

T2: The second active component

TD1, TD2: transparent display screen

TH1, TH2, TH3, TH4, TH5: opening

θ: included angle

FIG. 1A is a schematic perspective view of a display element according to an embodiment of the present invention.

FIG. 1B is an expanded view of a display element according to an embodiment of the present invention.

FIG. 1C is a schematic cross-sectional view of a display element according to an embodiment of the invention.

FIG. 2A is a schematic perspective view of a display element according to an embodiment of the present invention.

FIG. 2B is an expanded view of a display element according to an embodiment of the present invention.

FIG. 2C is a schematic cross-sectional view of a display element according to an embodiment of the invention.

FIG. 3A is a schematic perspective view of a display element according to an embodiment of the present invention.

FIG. 3B is an expanded view of a display element according to an embodiment of the present invention.

FIG. 4A is a schematic perspective view of a display element according to an embodiment of the present invention.

FIG. 4B is an expanded view of a display element according to an embodiment of the present invention.

FIG. 4C is a schematic cross-sectional view of a display element according to an embodiment of the present invention.

FIG. 5A is a schematic perspective view of a display element according to an embodiment of the present invention.

FIG. 5B is an expanded view of the inner side of a display element according to an embodiment of the present invention.

FIG. 5C is an expanded view of the outside of a display element according to an embodiment of the present invention.

FIG. 5D is an equivalent circuit diagram of a display element according to an embodiment of the present invention.

Fig. 6 is an equivalent circuit of a display element according to an embodiment of the present invention picture.

FIG. 7A is an expanded view of the inner side of a display element according to an embodiment of the present invention.

FIG. 7B is an expanded view of the outside of a display element according to an embodiment of the present invention.

FIG. 7C is a schematic perspective view of a display element according to an embodiment of the present invention.

FIG. 7D is an equivalent circuit diagram of a display element according to an embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a display device according to an embodiment of the present invention.

FIG. 9A is a perspective view of a transparent display screen according to an embodiment of the present invention.

FIG. 9B is a schematic perspective view of a non-transparent display screen according to an embodiment of the present invention.

FIG. 10A is a perspective view of a transparent display screen according to an embodiment of the present invention.

FIG. 10B is a perspective view of a non-transparent display screen according to an embodiment of the present invention.

Fig. 1A is a perspective view of a display element according to an embodiment of the present invention A schematic diagram, wherein FIG. 1A depicts the polyhedral structure 100 , the first light-emitting element L1 and the half-transmissive mirror 200 , and other components are omitted. FIG. 1B is an expanded view of a display element according to an embodiment of the present invention, wherein FIG. 1B depicts a polyhedron structure 100, a first light-emitting element L1, a half-transmissive mirror 200, and a light-shielding layer BM, and omits the drawing of other components. . FIG. 1C is a schematic cross-sectional view of a display element according to an embodiment of the invention. FIG. 1A is a schematic perspective view of a display element according to an embodiment of the present invention.

Please refer to FIG. 1A , FIG. 1B and FIG. 1C , the display element 10 includes a polyhedral structure 100 (or called a first polyhedral structure) and a semi-transmissive mirror 200 . In this embodiment, the display element 10 further includes a first light-emitting element L1 and a light-shielding layer BM (or called a first light-shielding layer).

The polyhedral structure 100 includes a first board 110 , a second board 120 , and a top board 130 and a bottom board 140 connecting the first board 110 and the second board 120 . The first board body 110 and the second board body 120 are disposed opposite to each other. The top board 130 is opposite to the bottom board 140 .

In some embodiments, the materials of the first board body 110, the second board body 120, the top board 130 and the bottom board 140 include polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate Plastic substrates such as polyester (PET), polyimide (PI), or composite substrates made of soft and hard materials such as ceramic substrates with good thermal conductivity. The respective thicknesses of the first plate body 110 , the second plate body 120 , the top plate 130 and the bottom plate 140 depend on their materials, for example, about one hundred microns or more.

The first plate body 110, the second plate body 120, the top plate 130 and the bottom plate 140 are essentially It surrounds the first space SP1. In this embodiment, the front side FS and the back side BS of the polyhedron structure 100 are not closed.

The half-transmissive mirror 200 is disposed in the first space SP1. The half-transmissive mirror 200 is perpendicular to the first board body 110 and the second board body 120 , and the included angle θ between the half-transmission mirror 200 and the bottom plate 140 is 30 degrees to 60 degrees. In some embodiments, the included angle between the half-transmitting mirror 200 and the bottom plate 140 is equal to the included angle between the half-transmitting mirror 200 and the top plate 130 . In this embodiment, the transmittance of the semi-transmissive mirror 200 is approximately 30% to 70%, and the reflectivity of the semi-transmissive mirror 200 is approximately 70% to 30%.

The light shielding layer BM is located on the first board body 110 , the second board body 120 , the top board 130 and the bottom board 140 . In this embodiment, the light shielding layer BM is located inside the first board body 110 , the second board body 120 , the top board 130 and the bottom board 140 , but the invention is not limited thereto. In other embodiments, the light-shielding layer BM is located outside the first board body 110 , the second board body 120 , the top board 130 and the bottom board 140 . In some embodiments, between the light shielding layer BM and the first plate body 110, between the light shielding layer BM and the second plate body 120, between the light shielding layer BM and the top plate 130 and/or between the light shielding layer BM and the bottom plate 140 There are other insulating layers (not shown) and conductive layers (not shown), but the invention is not limited thereto.

The material of the light-shielding layer BM includes black resin, blackened chromium-based materials (CrOx/CrNx/Cr) or other materials that are not easy to reflect light. In some embodiments, the first board body 110 , the second board body 120 , the top board 130 and the bottom board 140 themselves contain light-shielding materials, so no additional light-shielding layer BM is required.

The first light emitting element L1 is disposed on the base plate 140 . In this embodiment, the first light emitting element L1 is disposed on the light shielding layer BM, but the invention is not limited thereto. In a In some embodiments, other insulating layers and/or conductive layers (not shown) are sandwiched between the first light emitting element L1 and the light shielding layer BM.

The first light-emitting element L1 includes a self-luminous element such as an electroluminescence element, an inorganic light-emitting diode element, or an organic light-emitting diode element. Part of the light IL emitted by the first light emitting element L1 passes through the half mirror 200 , and then is absorbed by the top board 130 or the light shielding layer BM on the top board 130 . Part of the light IL emitted by the first light-emitting element L1 is reflected by the half-transmitting mirror 200, and leaves the polyhedral structure 100 from the front side FS of the polyhedron structure 100, so that people located at the front side FS of the polyhedron structure 100 can observe the light emitted by the first light-emitting element L1. The Rays IL.

External light OL can enter the polyhedral structure 100 from the front side FS of the polyhedral structure 100, then at least partly pass through the semi-transmissive mirror 200, and leave the polyhedral structure 100 from the back side BS of the polyhedron structure 100, so that the back side BS located at the polyhedron structure 100 The person can observe the outside light OL.

In some embodiments, the display element 10 is a cuboid or a cube with a side length of 1.7 mm to 5 mm, but the invention is not limited thereto.

In some embodiments, the first board body 110, the second board body 120, the top board 130 and the bottom board 140 are integrally formed, for example, the first board body 110, the second board body 120, the top board are formed on a plane 130 and the bottom plate 140 , then concave-fold it into the polyhedron structure 100 . In some embodiments, the first light-emitting element L1 and the half-transmissive mirror 200 are formed on the first board 110, the second board 120, the top board 130, and the bottom board 140, and then the first board 110, the second The plate body 120 , the top plate 130 and the bottom plate 140 are concavely folded to form the polyhedron structure 100 .

In some embodiments, the polyhedral structure 100 further includes a sloping plate 190 , and the half-transmissive mirror 200 is formed on the sloping plate 190 . The inclined plate 190 is integrally formed with the first plate body 110, the second plate body 120, the top plate 130 and the bottom plate 140. For example, the first plate body 110, the second plate body 120, and the top plate 130 are formed on a plane first. After the base plate 140 and the slant plate 190, the first light-emitting element L1 and the half-transmission mirror 200 are formed on the first plate body 110, the second plate body 120, the top plate 130, the bottom plate 140 and the slant plate 190, and then the first plate The body 110 , the second board body 120 , the top board 130 and the bottom board 140 are recessed to form the first space SP1 , and finally the slant board 190 is recessed into the first space SP1 . The inclined plate 190 is, for example, directly connected to at least one of the top plate 130 and the bottom plate 140 .

In some embodiments, the thickness of the slant plate 190 may cause the problem of ghost images. In order to make the reflection better Reflective mirror 200 and first light-emitting element L1 are formed on the same side of polyhedron structure 100 when unfolded (such as shown in FIG. Towards the first light emitting element L1.

FIG. 2A is a three-dimensional schematic diagram of a display element according to an embodiment of the present invention, wherein FIG. 2A depicts a polyhedron structure 100 , a first light-emitting element L1 and a half-transmissive mirror 200 , and omits other components. FIG. 2B is an expanded view of a display element according to an embodiment of the present invention, wherein FIG. 2B depicts a polyhedral structure 100, a first light emitting element L1, a half-transmissive mirror 200, and a light-shielding layer BM, and other components are omitted. . FIG. 2C is a schematic cross-sectional view of a display element according to an embodiment of the invention.

It must be noted here that the embodiment of Fig. 2A to Fig. 2C follows the component numbers and part of the content of the embodiment of Fig. 1A to Fig. 1C, wherein the same or similar symbols are used to indicate the same or similar components, and the same A description of the technical content. For the description of the omitted part, reference may be made to the foregoing embodiments, and details are not repeated here.

The difference between the display element 20 in FIGS. 2A to 2C and the display element 10 in FIGS. 1A to 1C is that the display element 20 further includes a third board 150 and a fourth board 160 .

Please refer to FIG. 2A , FIG. 2B and FIG. 2C , the polyhedral structure 100 further includes a third board 150 and a fourth board 160 . The third plate body 150 and the fourth plate body 160 are disposed opposite to each other. The third plate body 150 and the fourth plate body 160 are directly connected to one of the first plate body 110, the second plate body 120, the top plate 130 and the bottom plate 140, and the present invention is not limited to the third plate body 150 and the fourth plate body. The board body 160 is directly connected to the top board 130 .

The first board body 110 , the third board body 150 , the second board body 120 and the fourth board body 160 are sequentially connected and substantially surround the first light emitting element L1 . The first plate body 110, the third plate body 150, the second plate body 120, the fourth plate body 160, the top plate 130 and the bottom plate 140 substantially surround the first space SP1, wherein the first space SP1 is approximately a closed space (such as a completely closed space) or just show some gaps).

In this embodiment, the first space SP1 includes a first subspace SP1a and a second subspace SP2a. The first subspace SP1a is surrounded by the first plate body 110, the second plate body 120, the top plate 130, the fourth plate body 160 and the inclined plate 190 (or the half-penetrating mirror 200), and the second subspace SP2a is surrounded by the first plate body Body 110, second plate body 120, bottom plate 140, third Surrounded by the plate body 150 and the sloping plate 190 (or the half-penetrating mirror 200). In some embodiments, by adjusting the refractive index of the material in the first subspace SP1a and the refractive index of the material in the second subspace SP2a so that part of the light can pass through the half-transmitting mirror 200, and part of the light will be half Reflected by the mirror 200. For example, the refractive index of the substance in the second subspace SP2a (such as the organic material additionally filled in the second subspace SP2a) is greater than the refractive index of the substance in the first subspace SP1a (such as air).

In this embodiment, the light shielding layer BM is located on the first board body 110 , the third board body 150 , the second board body 120 and the fourth board body 160 , the top board 130 and the bottom board 140 . The light-shielding layer BM does not completely cover the third board body 150 and the fourth board body 160 , so that the external light OL can pass through the third board body 150 and the fourth board body 160 . In other embodiments, the light shielding layer BM is not formed on the third board body 150 and the fourth board body 160 .

FIG. 3A is a three-dimensional schematic view of a display element according to an embodiment of the present invention, wherein FIG. 3A depicts a polyhedron structure 100, a first light-emitting element L1, a second light-emitting element L2, a third light-emitting diode L3, and a semi-transparent mirror 200, and other components are omitted. 3B is an expanded view of a display element according to an embodiment of the present invention, wherein FIG. 3B depicts a polyhedron structure 100, a first light-emitting element L1, a second light-emitting element L2, a third light-emitting diode L3, a semi-transparent The mirror 200 and the light-shielding layer BM, and other components are omitted.

It must be noted here that the embodiment in FIG. 3A and FIG. 3B follows the component numbers and part of the content in the embodiment in FIG. 2A to FIG. A description of the technical content. For the description of the omitted part, reference may be made to the foregoing embodiments, and details are not repeated here.

The difference between the display element 30 in FIGS. 3A and 3B and the display element 20 in FIGS. 2A to 2C is that the display element 30 further includes a second light emitting element L2 and a third light emitting element L3 .

Please refer to FIG. 3A and FIG. 3B , the light shielding layer BM is not formed on the third board body 150 and the fourth board body 160 . The first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 are disposed on the base plate 140 . The first light emitting element L1, the second light emitting element L2 and the third light emitting element L3 include light emitting elements of different colors. For example, the first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 are red light emitting element, green light emitting element and blue light emitting element respectively. In this embodiment, each display element 30 corresponds to a color pixel of the display device.

In this embodiment, the polyhedral structure 100 includes a third board 150 and a fourth board 160 , but the invention is not limited thereto. The third board body 150 and the fourth board body 160 can be selectively omitted.

FIG. 4A is a three-dimensional schematic diagram of a display element according to an embodiment of the present invention, wherein FIG. 4A depicts a polyhedron structure 100, a first light-emitting element L1, a second light-emitting element L2, and a half-transmissive mirror 200, and the drawing is omitted. other components. FIG. 4B is an expanded view of a display element according to an embodiment of the present invention, wherein FIG. 4B depicts a polyhedron structure 100, a first light-emitting element L1, a second light-emitting element L2, a half-transmissive mirror 200, and a light-shielding layer BM, And omit drawing other components. FIG. 4C is a schematic cross-sectional view of a display element according to an embodiment of the present invention.

It must be noted here that the embodiment in Fig. 4A to Fig. 4C follows the element numbers and some contents of the embodiment in Fig. 1A to Fig. 1C , wherein the same or similar The same or similar elements are denoted by reference numerals, and descriptions of the same technical contents are omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and details are not repeated here.

The difference between the display element 40 in FIGS. 4A to 4C and the display element 10 in FIGS. 1A to 1C is that the display element 40 further includes a second light emitting element L2.

Please refer to FIG. 4A to FIG. 4C , the first light emitting element L1 is disposed on the bottom plate 140 , and the second light emitting element L2 is disposed on the top plate 130 . The half-transmissive mirror 200 is located between the first light emitting element L1 and the second light emitting element L2.

In this embodiment, part of the light IL1 emitted by the first light emitting element L1 passes through the half-transmissive mirror 200 , and then is absorbed by the top board 130 or the light shielding layer BM on the top board 130 . Part of the light IL1 emitted by the first light emitting element L1 is reflected by the half-transmitting mirror 200, and leaves the polyhedral structure 100 from the front side FS of the polyhedral structure 100, so that people located at the front side FS of the polyhedral structure 100 can observe the light emitted by the first light emitting element L1. The light IL1.

In this embodiment, part of the light IL2 emitted by the second light emitting element L2 passes through the half-transmissive mirror 200 and is then absorbed by the base plate 140 or the light shielding layer BM on the base plate 140 . Part of the light IL2 emitted by the second light emitting element L2 is reflected by the half-penetrating mirror 200, and leaves the polyhedral structure 100 from the backside BS of the polyhedron structure 100, so that people located at the backside BS of the polyhedron structure 100 can observe the second light emitting element For the light IL2 emitted by L2, adjusting the reflectivity of the semi-transmissive mirror 200 can adjust the ratio of the light emitted by the light-emitting elements (the first light-emitting element L1 and the second light-emitting element L2) to the light transmitted (light OL), such as increasing The reflectivity of the half-transmissive mirror 200 can increase the light emission of the first light-emitting element L1 toward the front side FS and the light emission of L2 toward the back side BS, but it will suppress the light emission Penetration of line OL.

FIG. 5A is a three-dimensional schematic diagram of a display element according to an embodiment of the present invention, wherein FIG. 5A depicts a polyhedron structure 100, a first light-emitting element L1, a second light-emitting element L2, a third light-emitting diode L3, a first The data line DL1 , the second data line DL2 , the third data line DL3 , the scan line SL (including the connection line CL1 , the connection line CL2 , and the transfer electrode E4 ), and the half-transmissive mirror 200 , and other components are omitted. Fig. 5B is an expanded view of the inner side of a display element according to an embodiment of the present invention, and Fig. 5C is an expanded view of the outer side of a display element according to an embodiment of the present invention, wherein Fig. 5B and Fig. 5C draw a polyhedron Structure 100, first light emitting element L1, second light emitting element L2, third light emitting diode L3, first data line DL1, second data line DL2, third data line DL3, transfer electrodes E1~E3, scanning lines SL (including the connection line CL1 , the connection line CL2 and the transfer electrode E4 ), the half-transmissive mirror 200 and the black matrix BM, and other components are omitted. FIG. 5D is an equivalent circuit diagram of a display element according to an embodiment of the present invention.

It must be noted here that the embodiment of FIG. 5A to FIG. 5D follows the component numbers and part of the content of the embodiment of FIG. 3A and FIG. A description of the technical content. For the description of the omitted part, reference may be made to the foregoing embodiments, and details are not repeated here.

Please refer to FIG. 5A , FIG. 5B , FIG. 5C and FIG. 5D , the display element 50 further includes a pixel circuit PC1 (or called a first pixel circuit). The pixel circuit PC1 is distributed on the top board 130 , the bottom board 140 , the first board body 110 and the second board body 120 , and is electrically connected to the first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 . In a In some embodiments, the display element 50 further includes a third board and a fourth board (such as the third board 150 and the fourth board 160 in FIG. 3A and FIG. 3B ), and the pixel circuit PC1 is not distributed on the third board. board and the fourth board.

In this embodiment, the pixel circuit PC1 includes a first data line DL1 , a second data line DL2 , a third data line DL3 and a scan line SL.

The scan line SL is disposed on the first board 110 , the second board 120 and the bottom board 140 , and is electrically connected to the first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 .

The scan line SL is disposed on the polyhedron structure 100 and electrically connected to the first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 . For example, the scan line SL includes a connection line CL1 disposed outside the first board 110 , a connection line CL2 disposed outside the second board 120 , and a transfer electrode E4 disposed inside the bottom board 140 . The transfer electrode E4 extends from the inner side of the bottom plate 140 to the inner side of the first board body 110 and the inner side of the second board body 120, and passes through the opening TH4 penetrating the first board body 110 and the opening TH5 penetrating the second board body 120 respectively. connected to the connection line CL1 and the connection line CL2. The light shielding layer BM is located inside the polyhedral structure 100 and covers the via electrodes E4. The light-shielding layer BM has a plurality of openings OP overlapping the via electrodes E4, so that the first light emitting element L1, the second light emitting element L2, and the third light emitting element L3 can be electrically connected to the via electrodes E4 through the openings OP.

The first data line DL1 , the second data line DL2 and the third data line DL3 are disposed on the first board body 110 , the top board 130 and the bottom board 140 . In this embodiment, between the first data line DL1 and the scan line SL, between the second data line DL2 and the scan line SL An insulating layer (not shown) is provided between the third data line DL3 and the scan line SL, so that the first data line DL1 , the second data line DL2 and the third data line DL3 will not be short-circuited with the scan line SL.

The first data line DL1 is electrically connected to the first light emitting element L1. The second data line DL2 is electrically connected to the second light emitting element L2. The third data line DL3 is electrically connected to the third light emitting element L3.

For example, the first data line DL1 , the second data line DL2 and the third data line DL3 are disposed on the polyhedral structure 100 and located outside the first plate body 110 , the top plate 130 and the bottom plate 140 . The via electrode E1 , the via electrode E2 and the via electrode E3 are disposed on the inner side of the base plate 140 . The via electrodes E1 , E2 , and E3 are electrically connected to the first data line DL1 , the second data line DL2 , and the third data line DL3 through the holes TH1 , TH2 , TH3 penetrating through the bottom plate 140 . The light shielding layer BM is located inside the polyhedron structure 100 and covers the via electrodes E1 , E2 and E3 . The light-shielding layer BM has a plurality of openings OP overlapping the via electrodes E1, E2, and E3, so that the first light-emitting element L1, the second light-emitting element L2, and the third light-emitting element L3 can transmit electricity through the openings OP. Connected to the transfer electrode E1, the transfer electrode E2 and the transfer electrode E3.

In this embodiment, the cathodes of the first light emitting element L1, the second light emitting element L2 and the third light emitting element L3 are electrically connected to the first data line DL1, the second data line DL2 and the third data line DL3 respectively, and the anode It is electrically connected to the scan line SL, but the invention is not limited thereto. In other embodiments, as shown in FIG. 6, the anodes of the first light-emitting element L1, the second light-emitting element L2, and the third light-emitting element L3 are respectively electrically It is connected to the first data line DL1 , the second data line DL2 and the third data line DL3 , and the cathode is electrically connected to the scan line SL.

FIG. 7A is an expanded view of the inner side of a display element according to an embodiment of the present invention. FIG. 7B is an expanded view of the outside of a display element according to an embodiment of the present invention. 7A and 7B depict the polyhedron structure 100, the first light-emitting element L1, the data line DL, the first power line PL1, the second power line PL2, the transfer electrodes E1-E3, and the scanning line SL (including the connecting line CL1, The connection line CL2 and the transfer electrode E4) and the half-transmission mirror 200, and other components are omitted. FIG. 7C is a three-dimensional schematic diagram of a display element according to an embodiment of the present invention, wherein FIG. 7C depicts a polyhedron structure 100, a first light-emitting element L1, a data line DL, a first power line PL1, a second power line PL2, The scanning line SL (including the connection line CL1 , the connection line CL2 and the transfer electrode E4 ), the light-shielding layer BM and the half-transmissive mirror 200 , and other components are omitted. FIG. 7D is an equivalent circuit diagram of a display element according to an embodiment of the present invention.

It must be noted here that the embodiment in Fig. 7A to Fig. 7D follows the component numbers and part of the content of the embodiment in Fig. 5A to Fig. 5C , wherein the same or similar symbols are used to indicate the same or similar components, and the same or similar components are omitted. A description of the technical content. For the description of the omitted part, reference may be made to the foregoing embodiments, and details are not repeated here.

The difference between the display element 60 in FIGS. 7A to 7D and the display element 50 in FIGS. 5A to 5D is that the display element 60 does not include the second light emitting element L2 and the third light emitting element L3, and the pixel circuit PC2 of the display element 60 includes The first active element T1, the second active element T2, the data line DL, the first power line PL1, the second power supply line PL2, scan line SL and capacitor C.

Please refer to FIG. 7A to FIG. 7D , the scan line SL is disposed on the first board 110 , the second board 120 and the bottom board 140 , and is electrically connected to the gate of the first active device T1 .

In this embodiment, the first active device T1 is disposed corresponding to the inner side of the polyhedral structure 100, and the transfer electrode E4 of the scan line SL is electrically connected to the gate of the first active device T1, but the present invention is not limited thereto. . The connection manner between the scan line SL and the first active element T1 can be adjusted according to actual needs.

The data line DL, the first power line PL1 and the second power line PL2 are disposed outside the first board body 110 , the top board 130 and the bottom board 140 . The via electrode E1 , the via electrode E2 and the via electrode E3 are disposed on the inner side of the base plate 140 . The via electrodes E1 , E2 , and E3 are electrically connected to the data line DL, the first power line PL1 , and the second power line PL2 through the openings TH1 , TH2 , TH3 penetrating through the bottom plate 140 , respectively. The light shielding layer BM is located inside the polyhedron structure 100 and covers the via electrodes E1 , E2 and E3 . The light-shielding layer BM has a plurality of openings OP overlapping the transfer electrode E1, the transfer electrode E2, and the transfer electrode E3, so that the first active element T1, the second active element T2, and the first light-emitting element L1 can pass through the opening OP and electrically Connected to the transfer electrode E1, the transfer electrode E2 and the transfer electrode E3.

The gate of the second active device T2 is electrically connected to the drain of the first active device T1 , and the drain of the second active device T2 is electrically connected to the first light emitting device L1 . The two electrodes of the capacitor C are respectively electrically connected to the gate of the second active element T2 and the second Source of active device T2.

The first active device T1 and the second active device T2 can be PMOS or NMOS.

FIG. 8 is a schematic cross-sectional view of a display device according to an embodiment of the present invention.

Please refer to FIG. 8 , the display device 1 is, for example, mounted on the body of a public vehicle or other suitable places. The display device 1 includes a transparent display screen TD1 and a non-transparent display screen NTD1. For example, the non-transparent display screen NTD1 is assembled with the transparent display screen TD1 in a splicing manner. The spliced display device 1 is easy to maintain and easy to make adaptive changes in assembly. In addition, the cost of the spliced display device 1 is easy to control.

The transparent display screen TD1 includes, for example, a plurality of display elements in any of the aforementioned embodiments. For example, as shown in FIG. 9A , the transparent display screen TD1 includes a plurality of display elements 50 in an array. The description of the display elements 50 can refer to FIGS. 5A to 5C and related paragraphs.

Please refer to FIG. 5A , 5B, 5C, 5D and FIG. 9A , in the transparent display screen TD1 , the pixel circuits PC1 of adjacent display elements 50 are electrically connected to each other. For example, the first data lines DL1 of the display elements 50 in the same row are electrically connected to each other, the second data lines DL2 of the display elements 50 in the same row are electrically connected to each other, and the third data lines DL2 of the display elements 50 in the same row are electrically connected to each other. The data lines DL3 are electrically connected to each other, and the scan lines SL of the display elements 50 in the same column are electrically connected to each other. In some embodiments, the light emitting elements of the same color system are electrically connected to each other through data lines.

In this embodiment, adjacent display elements 50 are connected to each other by anisotropic conductive glue or other conductive materials. For example, a plurality of display elements 50 are formed first, and then the plurality of display elements 50 are connected together with conductive materials.

The first data line DL1 , the second data line DL2 and the third data line DL3 of the plurality of display elements 50 are electrically connected to the source driving circuit DD. The scan lines SL of the plurality of display elements 50 are electrically connected to the gate driving circuit GD. The source driving circuit DD and the gate driving circuit GD are electrically connected to the timing control circuit TC. For example, the timing control circuit TC is used to control the source driving circuit DD and the gate driving circuit GD to address the display element 50 and control its light intensity.

5A, 5B, 5C, 5D and 9B, the non-transparent display screen NTD1 includes a plurality of display elements 50a arranged in an array. In this embodiment, the display element 50 a has a similar structure to the display element 50 , and the only difference is that the display element 50 a replaces the half-transmissive mirror 200 of the display element 50 with a total reflection mirror 200 a. In other words, the non-transparent display screen NTD1 has a similar structure to the transparent display screen TD1, and the only difference is that the non-transparent display screen NTD1 replaces the half-transparent mirror 200 with a total reflection mirror 200a.

The structure of the light-shielding layer of the second display element 50a is similar to the structure of the light-shielding layer BM in the embodiments of FIGS. 5A , 5B and 5C, and FIG. 9B omits the drawing of the light-shielding layer of the second display element 50a.

Please refer to FIG. 5A, 5B, 5C and FIG. 9B, each second display element 50a includes a polyhedral structure 100 (or called a second polyhedron structure), a light-shielding layer (or called a second light-shielding layer), a first light-emitting element L1, The second light emitting element L2, the third light emitting element L3, all The mirror 200a and the pixel circuit PC1 (or called the second pixel circuit).

The polyhedral structure 50a includes a first plate 110 (or called a fifth plate), a second plate 120 (or called a sixth plate), and a top plate 130 and a bottom plate 140 connecting the first plate 110 and the second plate 120 . The light-shielding layer of the second display element 50a is disposed on the first plate 110 , the second plate 120 , the top plate 130 and the bottom plate 140 of the polyhedron structure 50a.

The first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 are disposed on the base plate 140 . The total reflection mirror 200a is disposed in the polyhedron structure 50a, and the included angle between the total reflection mirror 200a and the bottom plate 140 of the polyhedron structure 50a is 30 degrees to 60 degrees.

The pixel circuit PC1 is electrically connected to the first light emitting element L1 , the second light emitting element L2 and the third light emitting element L3 . The pixel circuits PC1 of adjacent display elements 50 a are electrically connected to each other.

In this embodiment, external light cannot pass through the total reflection mirror 200a, so people located at the rear side of the polyhedron structure 100 cannot observe external light through the display element 50a.

In this embodiment, the light emitted by the first light-emitting element L1, the second light-emitting element L2, and the third light-emitting element L3 is reflected by the total reflection mirror 200a, and leaves the polyhedral structure 100 from the front side of the polyhedral structure 100, so that the light in the polyhedral structure 100 People on the front side of the front side can observe the light emitted by the first light emitting element L1, the second light emitting element L2 and the third light emitting element L3.

In some embodiments, the non-transparent display screen NTD1 and the transparent display screen TD1 can share the source driving circuit DD, the gate driving circuit GD and the timing control circuit. control circuit TC, but the present invention is not limited thereto. In other embodiments, the non-transparent display screen NTD1 and the transparent display screen TD1 respectively have their own source driving circuit DD, gate driving circuit GD and timing control circuit TC.

Although in this embodiment, the non-transparent display screen NTD1 and the transparent display screen TD1 include similar structures (the difference is only in the total reflection mirror and the half-transmission mirror), the present invention is not limited thereto. In other embodiments, the non-transparent display screen NTD1 may be any display device that does not include a polyhedron structure in an array.

FIG. 10A is a perspective view of a transparent display screen according to an embodiment of the present invention.

It must be noted here that the embodiment in FIG. 10A follows the component numbers and parts of the content in the embodiment in FIG. 9A , wherein the same or similar numbers are used to denote the same or similar components, and the description of the same technical content is omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and details are not repeated here.

The difference between the transparent display screen TD2 in FIG. 10A and the transparent display screen TD1 in FIG. 9A is that the transparent display screen TD2 includes a plurality of display elements 60 in an array, and the description of the display elements 60 can refer to FIGS. 7A to 7C and related paragraphs.

Please refer to FIG. 7A, FIG. 7B, FIG. 7C, FIG. 7D and FIG. 10A, the data lines DL of the display elements 60 in the same row are electrically connected to each other, and the first power lines PL1 of the display elements 60 in the same row are electrically connected to each other. , the second power lines PL2 of the display elements 60 in the same row are electrically connected to each other, and the scan lines SL of the display elements 60 in the same row are electrically connected to each other.

Please refer to Figure 7A, 7B, 7C, 7D and Figure 10B, non-transparent display fluorescent The screen NTD2 includes a plurality of display elements 60a arranged in an array. In this embodiment, the display element 60 a has a similar structure to the display element 60 , and the only difference is that the display element 60 a replaces the half-transmissive mirror 200 of the display element 60 with a total reflection mirror 200 a. In other words, the non-transparent display screen NTD2 has a similar structure to the transparent display screen TD2, and the only difference is that the non-transparent display screen NTD2 replaces the half-transmissive mirror 200 with a total reflection mirror 200a.

In the non-transparent display screen NTD2, the data lines DL of the display elements 60a in the same row are electrically connected to each other, the first power lines PL1 of the display elements 60a in the same row are electrically connected to each other, and the display elements 60a in the same row are electrically connected to each other. The second power lines PL2 are electrically connected to each other, and the scan lines SL of the display elements 60 a in the same row are electrically connected to each other.

10: Display components

130: the first top plate

140: The first bottom plate

190: inclined board

200: half mirror

BM: shading layer

BS: rear side

FS: front side

IL, OL: light

L1: the first light-emitting element

SP1: First Space

θ: included angle

Claims (12)

A display device, comprising: a plurality of display elements in an array, each of which includes: a polyhedron structure, including a first plate body, a second plate body, and a connecting plate body and the second plate body A first top board and a first bottom board, wherein the first board body, the second board body, the first top board and the first bottom board substantially surround a first space, wherein the first board body and the second board body The system is arranged oppositely; a half-transmissive mirror is arranged in the first space, and the angle between the half-transmissive mirror and the first bottom plate is 30 degrees to 60 degrees; a first light-emitting element is arranged on the first bottom plate , wherein the first light-emitting element includes electroluminescent element, inorganic light-emitting diode element or organic light-emitting diode element; a second light-emitting element and a third light-emitting element are arranged on the first base plate, wherein the The first light-emitting element, the second light-emitting element and the third light-emitting element include light-emitting elements of different colors; and a pixel circuit distributed on the first top board, the first bottom board, the first board body and the second The board is electrically connected to the first light-emitting element, the second light-emitting element and the third light-emitting element. The display device as described in Claim 1, further comprising: a third plate body and a fourth plate body, wherein the third plate body and the fourth plate system are oppositely arranged, wherein the first plate body, the first plate body Three plates, the second plate with and the fourth board are sequentially connected and substantially surround the first light-emitting element, wherein the pixel circuit is not distributed on the third board and the fourth board. The display device as described in Claim 1, further comprising: a third plate body and a fourth plate body, wherein the third plate body and the fourth plate system are oppositely arranged, wherein the first plate body, the first plate body The three plates, the second plate and the fourth plate are sequentially connected and substantially surround the first light-emitting element, wherein the first plate, the third plate, the second plate, the fourth The board body, the first top board and the first bottom board substantially surround the first space, wherein the first space is approximately a closed space. The display device according to claim 3, further comprising: a light-shielding layer located on the first board, the third board, the second board and the fourth board, the first top board and the first board bottom plate. The display device according to claim 1 further includes a light-shielding layer located on the first board, the second board, the first top board, and the first bottom board. A display device, comprising: a plurality of display elements in an array, each of which includes: a polyhedron structure, including a first plate body, a second plate body, and a connecting plate body and the second plate body A first top board and a first bottom board, wherein the first board body, the second board body, the first top board and the first bottom board substantially surround a first space, wherein the first board body and the second board body The system is arranged oppositely; half of the transmissive mirror is arranged in the first space, and the angle between the half-transmissive mirror and the first bottom plate is 30 degrees to 60 degrees; A first light-emitting element arranged on the first bottom plate, wherein the first light-emitting element includes an electroluminescent element, an inorganic light-emitting diode element or an organic light-emitting diode element; and a second light-emitting element arranged on the On the first top plate, the semi-transparent mirror is located between the first light-emitting element and the second light-emitting element. A display device, comprising: a transparent display screen, including a plurality of first display elements arranged in an array, wherein each of the first display elements includes: a first polyhedron structure, including a first plate body, a second plate body and a first top plate and a first bottom plate connecting the first plate body and the second plate body, wherein the first plate body, the second plate body, the first top plate and the first bottom plate are substantially Surrounding a first space, wherein the first plate body and the second plate system are arranged oppositely; and a half-transmissive mirror is arranged in the first space, and the included angle between the half-transparent mirror and the first bottom plate is 30 degrees to 60 degrees; and a first pixel circuit distributed on the first top board, the first bottom board, the first board body and the second board body, wherein the adjacent first display elements The first pixel circuits are electrically connected to each other. The display device as described in claim 7, wherein each of the display elements further includes: a first light-emitting element, a second light-emitting element, and a third light-emitting element, arranged on the first base plate, wherein the first light-emitting element , the second light emitting element and The third light-emitting element includes light-emitting elements of different colors, wherein the first pixel circuit is electrically connected to the first light-emitting element, the second light-emitting element and the third light-emitting element; The first board, the second board, the first top board and the first bottom board of a polyhedron structure. The display device as described in claim 8, wherein each of the first pixel circuits includes: a first data line, arranged on the first board, the first top board and the first bottom board, and electrically connected to The first light-emitting element, wherein the first data lines of the first display elements in the same row are electrically connected to each other; a second data line is arranged on the first board body, the first top board and the second data line a bottom plate, and electrically connected to the second light-emitting element, wherein the second data lines of the first display elements in the same row are electrically connected to each other; a third data line, arranged on the first plate body, the first top plate, and the first bottom plate, and are electrically connected to the third light-emitting element, wherein the third data lines of the first display elements in the same row are electrically connected to each other; and a scan wires, arranged on the first board, the second board and the first bottom board, and electrically connected to the first light-emitting element, the second light-emitting element and the third light-emitting element, wherein the The scan lines of the first display elements are electrically connected to each other. The display device as described in claim 7, wherein each of the first pixel circuits comprises: A first active element; a second active element, wherein the gate of the second active element is electrically connected to the drain of the first active element, and the drain of the second active element is electrically connected to a first active element Light-emitting element; a data line, arranged on the first board, the first top board, and the first bottom board, and electrically connected to the source of the first active device, wherein the first displays in the same row The data lines of the components are electrically connected to each other; a first power line is arranged on the first board, the first top board and the first bottom board, and is electrically connected to the source of the second active device, The first power lines of the first display elements in the same row are electrically connected to each other; a second power line is arranged on the first board, the first top board and the first bottom board, and is electrically connected to the first light-emitting element, wherein the second power lines of the first display elements in the same row are electrically connected to each other; and a scanning line is arranged on the first board and the second board and the first bottom plate, and is electrically connected to the gate of the first active element, wherein the scanning lines of the first display elements in the same row are electrically connected to each other. The display device according to claim 7 further includes: a non-transparent display screen, wherein the non-transparent display screen and the transparent display screen are spliced together. The display device according to claim 11, wherein the non-transparent display screen comprises a plurality of second display elements arranged in an array, each of the second display elements comprising: A second polyhedron structure, including a fifth plate body, a sixth plate body, a second top plate and a second bottom plate connecting the fifth plate body and the sixth plate body; a second light-shielding layer, Set on the fifth plate, the sixth plate, the second top plate and the second bottom plate of the second polyhedron structure; a second light-emitting element, set on the second bottom plate; a total reflection mirror , arranged in the second polyhedron structure, and the included angle between the total reflection mirror and the second bottom plate of the second polyhedron structure is 30 degrees to 60 degrees; and a second pixel circuit, electrically connected To the second light-emitting element, the second pixel circuits of the adjacent second display elements are electrically connected to each other.

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