Transparent display screen

Abstract

The utility model relates to a transparent display screen which comprises a transparent substrate which comprises a transparent base material layer and further comprises a circuit layer arranged in a display area. The LED light-emitting units are fixedly arranged on the first surface of the transparent base material layer; the first transparent adhesive layer is fixedly arranged on the first surface; the second transparent adhesive layer is arranged on the second surface; the first optical glass is adhered to the first transparent adhesive layer; and the second optical glass is adhered to the second transparent adhesive layer. The optical glass is arranged on the two sides, the transparent substrate and the LED light-emitting units are clamped in the optical glass, the display effect of the transparent display screen is guaranteed, meanwhile, the transparent display screen is effectively protected, and due to the fact that the two faces of the transparent display screen are covered with the optical glass, the transparent display screen can be installed and displayed freely and independently. And the setting position of the transparent display screen can be randomly adjusted, so that the use scene of the transparent display screen is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially relates to a transparent display screen. BACKGROUND

[0002] LED display screen as the typical application of LED light emitting device has been widely used in various different use environments. In the existing vast majority of LED display screen application scene, LED display screen body is non-transparent, that is, the LED light emitting device therein can only display on one side, and the LED display screen will also form a shield when not displaying, in order that the LED display screen can display bidirectionally, and can directly transmit light in the state of not displaying, LED transparent display screen emerges as the times require. In the LED transparent display screen, the substrate is transparent, and after setting the LED light emitting device, there is a gap between the chips, which is formed by the transparent substrate. In this way, the light emitted by the LED light emitting device can be emitted from both sides of the substrate, and the external light can also be transmitted through the transparent substrate, thereby realizing both display content and perspective display effect, which is widely used in glass curtain wall, glass guardrail, glass showcase, indoor decoration and vehicle display fields. In the related technology, the transparent display screen is mostly made based on flexible substrate, so it is mostly based on glass curtain wall, transparent door and window carrier for mounting and layout, such as directly pasting on the glass curtain wall. The display screen itself is difficult to use alone, and its setting position is difficult to adjust after mounting, which limits the application scene of the transparent display screen to some extent.

[0003] Therefore, how to reduce the dependence of the transparent display screen on the carrier and improve the application scene of the transparent display screen is an urgent problem to be solved. SUMMARY

[0004] In view of the above-mentioned deficiencies in the related art, the purpose of the present application is to provide a transparent display screen, which aims to solve the problem that the transparent display screen in the prior art is difficult to use alone and the application scene is limited.

[0005] In order to solve the above technical problems, the present application provides a transparent display screen, which comprises:

[0006] A transparent substrate, the transparent substrate comprises a transparent substrate layer, the transparent substrate layer comprises a display area; the transparent substrate further comprises a circuit layer arranged in the display area;

[0007] A plurality of LED light emitting units, the LED light emitting units are fixedly arranged on the first surface of the transparent substrate layer and located in the display area, and the LED light emitting units are electrically connected with the circuit layer;

[0008] a first transparent adhesive layer fixedly arranged on the first surface and covering the LED light emitting unit and the circuit layer on the first surface;

[0009] a second transparent adhesive layer arranged on a second surface opposite to the first surface;

[0010] a first optical glass adhered to the first transparent adhesive layer;

[0011] a second optical glass adhered to the second transparent adhesive layer.

[0012] Optionally, the transparent substrate layer is provided with a plurality of through holes communicating the first surface and the second surface, the circuit layer comprises a first sub-circuit layer and a second sub-circuit layer arranged on the first surface and the second surface respectively, and the first sub-circuit layer and the second sub-circuit layer are electrically connected through the through holes.

[0013] Optionally, in the second sub-circuit layer, at least part of the circuit lines run from the LED light emitting unit in the projection area on the second surface.

[0014] Optionally, the running directions of at least part of the circuit lines in the first sub-circuit layer and the second sub-circuit layer are perpendicular to each other.

[0015] Optionally, the first optical glass and the second optical glass have the same light transmittance.

[0016] Optionally, the transparent substrate layer further comprises a driving area outside the display area, the transparent substrate further comprises a driving circuit layer arranged in the driving area, the driving circuit layer is electrically connected with the circuit layer, and the transparent display screen further comprises a plurality of driving elements arranged in the driving area and electrically connected with the driving circuit layer.

[0017] Optionally, the driving circuit layer is arranged on the first surface and / or the second surface and is covered by the corresponding first transparent adhesive layer and / or second transparent adhesive layer.

[0018] Optionally, the LED light emitting unit comprises at least one of a bare chip and a CSP chip.

[0019] Optionally, the LED light emitting unit comprises red light emitting devices, blue light emitting devices and green light emitting devices arranged adjacently, and the distance between the light emitting units is greater than the distance between the adjacent light emitting devices in the light emitting unit.

[0020] Optionally, each of the LED light emitting units is a single light emitting device, the light emitting colors of the light emitting devices are the same, and distances between adjacent light emitting devices are equal.

[0021] The utility model provides a transparent display screen, the transparent display screen includes: transparent substrate, transparent substrate includes transparent base material layer, and transparent base material layer includes display area, the transparent substrate still includes the circuit layer who sets up in display area, a plurality of LED light emitting unit, LED light emitting unit fixedly set up on the first surface of transparent base material layer and be located in display area, and LED light emitting unit and circuit layer electric connection, first transparent adhesive layer, first transparent adhesive layer fixedly set up on the first surface, and cover LED light emitting unit and the circuit layer who is located on the first surface, second transparent adhesive layer, second transparent adhesive layer sets up on the second surface with first surface opposite setting, first optical glass, first optical glass is bonded on first transparent adhesive layer, second optical glass, second optical glass is bonded on second transparent adhesive layer, thereby through setting up optical glass on both sides, the transparent substrate and LED light emitting unit in it are clamped in, guarantee the display effect of transparent display screen while effectively protecting transparent display screen, and because its both sides are covered by optical glass, therefore it can install display independently at will, and can adjust its setting position at will, the use scene of transparent display screen is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides a transparent display screen structure schematic view for embodiment of the utility model;

[0023] Figure 2 The utility model provides a transparent display screen structure schematic view for embodiment of the utility model;

[0024] Figure 3 The utility model provides a transparent display screen structure schematic view for embodiment of the utility model;

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 11 - transparent base material layer, 12 - circuit layer, 121 - first sub circuit layer, 122 - second sub circuit layer, 13 - drive circuit layer, 14 - drive element, 20 - LED light emitting unit, 31 - first transparent adhesive layer, 32 - second transparent adhesive layer, 41 - first optical glass, 42 - second optical glass. DETAILED DESCRIPTION

[0027] For the purposes of this application, a more complete description of the application will be presented in the following with reference to the accompanying drawings. The drawings show the preferred embodiments of the application. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments and is not intended to limit the application.

[0029] The transparent display screen is an LED display screen with a transparent substrate, and its general structure includes a flexible film, a circuit layer is formed on the flexible film, and LED light emitting units are fixedly arranged on the flexible film and electrically connected with the circuit layer. Wherein, each LED light emitting unit is arranged on the transparent display screen in a certain interval, so that there is a gap between the LED light emitting units, and the gap can realize light transmission based on the light transmission property of the transparent substrate, so that the transparent display screen can realize content display on one hand and allow light to pass through to realize the effect of transparent display. Due to the material properties of the flexible film itself, the existing transparent display screen is usually attached to the transparent carrier by transparent adhesive, and the strength of the transparent display screen itself is very low, which is difficult to present alone, and it is not convenient to change the position after installation, which limits its application scenarios.

[0030] Therefore, the application hopes to provide a solution to solve the above technical problems, and the detailed content will be described in the subsequent embodiments.

[0031] The utility model embodiment provides a kind of transparent display screen, please refer to Figure 1 , the transparent display screen specifically includes:

[0032] Transparent substrate, the transparent substrate includes transparent substrate layer 11, and the transparent substrate layer 11 includes display area;The transparent substrate further includes circuit layer 12 arranged in the display area;

[0033] A plurality of LED light emitting units 20, the LED light emitting unit 20 is fixedly arranged on the first surface of transparent substrate layer 11 and is located in the display area, and the LED light emitting unit 20 is electrically connected with the circuit layer 12;

[0034] First transparent adhesive layer 31, first transparent adhesive layer 31 is fixedly arranged on the first surface, and covers LED light emitting unit 20 and circuit layer 12 on the first surface;

[0035] A second transparent adhesive layer 32 is arranged on a second surface opposite to the first surface;

[0036] A first optical glass 41 is adhered to the first transparent adhesive layer 31;

[0037] A second optical glass 42 is adhered to the second transparent adhesive layer 32.

[0038] The transparent display screen can display content and allow light to pass through the display screen, the light including ambient light and light emitted by the LED light unit 20 as a light source, so that the transparent display screen can present the following effects: if the LED light unit 20 in the transparent display screen does not display content, the transparent display screen allows ambient light to pass directly, so that the transparent display screen can be visually considered as non-existent, and the influence on ambient light is very slight; if the LED light unit 20 in the transparent display screen is displaying content, the transparent display screen allows users to see the displayed content from both sides of the display screen, and the surrounding environment can be used as a background of the display content through the lens display screen.

[0039] The transparent display screen has a transparent substrate made of a material with a transmittance of more than 90%, which allows ambient light or light emitted by the LED light unit 20 to pass through. Generally, the smaller the thickness of the transparent substrate, the better the light transmission effect, and the lower the thickness of the transparent substrate, the lower the hardness and strength. Therefore, the material of the transparent substrate is generally flexible and in the form of a transparent film.

[0040] The transparent substrate includes a transparent substrate layer 11 as a main support and a circuit layer 12 arranged on the transparent substrate layer 11. The transparent substrate layer 11 is divided into a display area according to its function, and the display area is divided into an area where the LED light unit 20 is arranged. The LED light unit 20 is fixedly arranged at a position corresponding to the display area in the transparent substrate layer 11.

[0041] The circuit layer 12 is formed by a conductive material, and the conductive material can be arranged on the transparent substrate layer 11 by electroplating, etching or other processes. It is worth mentioning that in order to ensure the transmittance of the transparent substrate, the width of the circuit in the circuit layer 12 formed by the conductive material is very small, and the gap between adjacent circuits is usually several times the width of the circuit, so that the light shielding effect of the circuit on light can be reduced as much as possible.

[0042] The LED light emitting units 20 are fixedly arranged on the first surface of the transparent substrate layer 11. The transparent substrate layer 11 is thin and has two surfaces, i.e., the first surface and the second surface arranged oppositely, and the LED light emitting units 20 are arranged on the first surface. In order to realize the fixed arrangement of the LED light emitting units 20, the first surface of the transparent substrate layer 11 is provided with pads matching the positions and quantities of the LED light emitting units 20, and the pads are electrically connected to the wires in the wire layer 12 as a part of the wire layer 12. It is worth mentioning that the first surface and the second surface of the transparent substrate layer 11 in the embodiments of the present application are only used to distinguish the surfaces of the two surfaces of the transparent substrate layer 11 for arranging the LED light emitting units 20, and do not mean that the two surfaces of the transparent substrate layer 11 have any difference as such. In fact, as long as the pads are arranged on the corresponding surface, the corresponding LED light emitting units 20 can be fixedly arranged.

[0043] In some optional embodiments, the types of the LED light emitting units 20 can specifically include at least one of a bare chip and a CSP chip. The bare chip means an LED chip without components such as a packaging glue and a support, and the CSP chip means an LED chip with a packaging glue but without a support. In the structure of the bare chip, a corresponding quantum dot layer can be arranged on an epitaxial layer to realize different color light emitting effects.

[0044] In some optional embodiments, the specific application forms of the LED light emitting units 20 can include adjacent red light emitting devices, blue light emitting devices and green light emitting devices, and the distance between the light emitting units is greater than the distance between the adjacent light emitting devices in the light emitting units. That is, the LED light emitting units 20 in the embodiments of the present application can be RGB three-color light emitting devices arranged in groups, each group of LED light emitting units 20 including adjacent red light emitting devices, blue light emitting devices and green light emitting devices. The distance between the adjacent light emitting units is greater than the distance between the light emitting devices in the light emitting unit group, which can prevent excessive light mixing between the adjacent light emitting units, so that the relatively independent light emitting units can present more accurate light emitting effects, and the greater distance between the light emitting units can ensure the light transmission effect of the transparent display screen.

[0045] In some optional embodiments, when the transparent display screen does not need RGB color display, each LED light emitting unit 20 can also be a single light emitting device, the light emitting colors of the light emitting devices are the same, and the distances between the adjacent light emitting devices are equal.

[0046] In order to protect the light-emitting unit and improve the display effect of the light-emitting unit, a first transparent adhesive layer 31 is also included. The first transparent adhesive layer 31 is fixedly arranged on the first surface, and the LED light-emitting unit 20 is also arranged on the first surface. Therefore, the first transparent adhesive layer 31 will cover the LED light-emitting unit 20 therein; in addition, the portion of the circuit layer 12 located on the first surface will also be covered therein by the first transparent adhesive layer 31, thereby forming a package as a whole on the first surface side of the transparent substrate layer 11, which not only protects the LED light-emitting unit 20 and other devices and the circuit layer 12 therein, but also improves their light output effect based on the first transparent adhesive layer 31.

[0047] Corresponding to the first transparent adhesive layer 31, a second transparent adhesive layer 32 is also included. The second transparent adhesive layer 32 is disposed on the second surface of the transparent substrate layer 11, wherein the second transparent adhesive layer 32 also covers the circuit layer 12 on the second surface. It is worth mentioning that in this case, the circuit layer 12 can be disposed on the first surface and the second surface respectively. For details, please refer to Figure 2 To achieve electrical connection between the circuit layers 12 disposed on the first and second surfaces, respectively, the transparent substrate layer 11 is provided with a plurality of vias connecting the first and second surfaces. The circuit layer 12 includes a first sub-circuit layer 121 and a second sub-circuit layer 122 disposed on the first and second surfaces, respectively, and the first sub-circuit layer 121 and the second sub-circuit layer 122 are electrically connected via the vias. Compared to a solution in which the circuit layer 12 is disposed on only one surface, disposing the circuit layer 12 on both surfaces can significantly reduce the difficulty of circuit design. For example, insulation between the circuits corresponding to the positive and negative poles of the LED light-emitting unit 20 can be conveniently achieved by disposing the circuit layer 12 on both surfaces. When the circuit layer 12 includes two portions disposed on the first and second surfaces, the routing that would otherwise require jumpers in the circuit design can be replaced by disposing the circuit layer 12 on both surfaces, thereby improving circuit safety.

[0048] In some alternative embodiments, please refer to Figure 3 To further reduce the impact of the circuit layer 12 on the light transmittance of the transparent display, at least some of the circuits in the second sub-circuit layer 122 are routed within the orthographic projection area of ​​the LED light-emitting unit 20 on the second surface. In other words, some of the circuits in the second sub-circuit layer 122 are routed from the bottom of the LED light-emitting unit 20. This can take advantage of the inherent non-removable nature of the LED light-emitting unit 20 to provide a certain degree of shielding for the circuits, effectively ensuring the light transmittance of the transparent display.

[0049] In some optional embodiments, in order to further reduce the circuit design difficulty of the line layer 12 while ensuring the light transmittance of the transparent display screen, the wire direction of at least part of the lines in the first sub-line layer 121 and the second sub-line layer 122 is perpendicular to each other. After the wire direction of at least part of the lines in the first sub-line layer 121 and the second sub-line layer 122 is perpendicular to each other, a uniformly distributed rectangular gap is formed between the first sub-line layer 121 and the second sub-line layer 122, and the greater the ratio of the lines perpendicular to each other in the first sub-line layer 121 and the second sub-line layer 122, the more uniform the distribution of the rectangular gap, so that the light transmittance of the transparent display screen everywhere is also more uniform.

[0050] In some optional embodiments, in order to make the display content of the transparent display screen from both sides have almost the same display effect, the light transmittance of the corresponding first optical glass 41 and second optical glass 42 can be set to be the same, wherein the material affecting the light transmittance includes but is not limited to the material of the optical glass, the thickness of the optical glass, etc. That is, the same material and the same thickness of the optical glass can be used as the first optical glass 41 and the second optical glass 42, respectively, and set on the upper and lower surfaces of the transparent substrate layer 11.

[0051] In some optional embodiments, in addition to the components for display, the transparent display screen often also includes a driving circuit part for driving control to correspondingly realize the required display content. Specifically, the transparent substrate layer 11 can also include a driving area outside the display area, and the transparent substrate also includes a driving line layer 13 arranged in the driving area, which is electrically connected with the line layer 12. The transparent display screen also includes a plurality of driving elements 14 arranged in the driving area and electrically connected with the driving line layer 13. In addition to the display area where the LED light emitting device is arranged, the transparent substrate layer 11 also has a driving area, wherein the driving area is mainly used to arrange the driving line layer 13 and the driving element 14. The driving line layer 13 is electrically connected with the line layer 12, and the specific arrangement mode can be that the driving line layer 13 is designed and arranged on the transparent substrate layer 11 together with the line layer 12. Correspondingly, the driving line layer 13 can also be arranged on both the first surface and the second surface of the transparent substrate layer 11, like the line layer 12, so as to reduce the line design difficulty of the driving line layer 13, reduce the risk of line short circuit, and improve the safety. That is, the driving line layer 13 can be arranged on the first surface and / or the second surface. When the driving line layer 13 is arranged on the first surface and / or the second surface, it is covered by the first transparent adhesive layer 31 and / or the second transparent adhesive layer 32 corresponding to the first surface and / or the second surface.

[0052] The utility model provides a kind of transparent display screen, the transparent display screen includes: transparent substrate, transparent substrate includes transparent substrate layer 11, and transparent substrate layer 11 includes display area;Transparent substrate further include circuit layer 12 being arranged in display area;Several LED light emitting units 20, LED light emitting unit 20 is fixedly arranged on the first surface of transparent substrate layer 11, and located in display area, and LED light emitting unit 20 and circuit layer 12 are electrically connected;First transparent adhesive layer 31, first transparent adhesive layer 31 is fixedly arranged on the first surface, and covers LED light emitting unit 20 and circuit layer 12 located on the first surface;Second transparent adhesive layer 32, second transparent adhesive layer 32 is arranged on the second surface being arranged opposite to the first surface;First optical glass 41, first optical glass 41 is bonded on first transparent adhesive layer 31;Second optical glass 42, second optical glass 42 is bonded on second transparent adhesive layer 32.Whereby by setting optical glass on both sides, transparent substrate and LED light emitting unit 20 in it are clamped in it, while ensuring the display effect of transparent display screen, effectively protect transparent display screen, and because its both sides are covered by optical glass, so it can be installed and displayed independently, and can be adjusted its setting position at will, greatly improve the use scene of transparent display screen.

[0053] It should be understood that the application of the utility model is not limited to the above examples, and those skilled in the art can improve or change according to the above description, and all these improvements and changes should belong to the protection scope of the claims attached to the utility model.

Claims

1. A transparent display screen, characterized in that: The transparent display screen comprises: A transparent substrate, the transparent substrate comprising a transparent base material layer, the transparent base material layer comprising a display area; the transparent substrate further comprising a circuit layer disposed in the display area; a plurality of LED light-emitting units, wherein the LED light-emitting units are fixedly disposed on the first surface of the transparent substrate layer and located within the display area, and the LED light-emitting units are electrically connected to the circuit layer; a first transparent adhesive layer, the first transparent adhesive layer being fixedly disposed on the first surface and covering the LED light-emitting unit and the circuit layer located on the first surface; a second transparent adhesive layer disposed on a second surface opposite to the first surface; a first optical glass, wherein the first optical glass is bonded to the first transparent adhesive layer; The second optical glass is bonded to the second transparent adhesive layer.

2. The transparent display screen according to claim 1, wherein: The transparent substrate layer is provided with a plurality of vias connecting the first surface and the second surface. The circuit layer includes a first sub-circuit layer and a second sub-circuit layer respectively provided on the first surface and the second surface, and the first sub-circuit layer and the second sub-circuit layer are electrically connected through the vias.

3. The transparent display screen according to claim 2, wherein: In the second sub-circuit layer, at least part of the circuits are routed within the orthographic projection area of ​​the LED light-emitting unit on the second surface.

4. The transparent display screen according to claim 2, wherein: The routing directions of at least some of the circuits in the first sub-circuit layer and the second sub-circuit layer are perpendicular to each other.

5. The transparent display screen according to any one of claims 1 to 4, characterized in that: The first optical glass and the second optical glass have the same light transmittance.

6. The transparent display screen according to any one of claims 1 to 4, characterized in that: The transparent substrate layer also includes a driving area located outside the display area, and the transparent substrate also includes a driving circuit layer arranged in the driving area, and the driving circuit layer is electrically connected to the circuit layer; the transparent display screen also includes a plurality of driving elements arranged in the driving area and electrically connected to the driving circuit layer.

7. The transparent display screen according to claim 6, wherein: The driving circuit layer is disposed on the first surface and / or the second surface, and is covered by the corresponding first transparent adhesive layer and / or second transparent adhesive layer.

8. The transparent display screen according to any one of claims 1 to 4, wherein: The LED light-emitting unit includes at least one of a bare die chip and a CSP chip.

9. The transparent display screen according to any one of claims 1 to 4, characterized in that: The LED light-emitting unit includes a red light-emitting device, a blue light-emitting device and a green light-emitting device that are adjacently arranged, and the distance between the light-emitting units is greater than the distance between adjacent light-emitting devices in the light-emitting unit.

10. The transparent display screen according to any one of claims 1 to 4, characterized in that: Each of the LED light-emitting units is a single light-emitting device, the light output color of each light-emitting device is the same, and the distances between adjacent light-emitting devices are equal.

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