Electronic price tag

Abstract

The embodiment of the utility model discloses an electronic price tag. The electronic price tag comprises a display module and a light emitting structure located on one side of the display module. The light-emitting structure comprises a light-in surface and a light-out surface which are arranged along the thickness direction of the electronic price tag; the light emitting surface comprises a light guide surface and a light transmitting surface which are connected; the light guide surface surrounds at least part of the light-transmitting surface; the display module is used for emitting display light, the display light is transmitted through the light incident surface to form transmission light, the transmission light is refracted through the light guide surface and transmitted through the light transmitting surface, and by arranging the light guide surface, the area of the display area can be increased visually so as to increase the screen-to-body ratio.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to display technical field, especially electronic price tag. BACKGROUND

[0002] The application scene of electronic price tag (ESL) is very extensive, not only covers traditional retail field, also gradually expands to medical treatment, storage and industry and multiple fields.

[0003] At present, the light entrance surface and light exit surface of the light exit structure of the electronic price tag are plane, so that the light exit structure can only transmit the light of the display area, and cannot increase the display area from the vision. UTILITY MODEL CONTENT

[0004] The embodiment of the utility model provides an electronic price tag to increase the display area from the vision, increase the screen ratio and realize narrow frame design.

[0005] The embodiment of the utility model provides an electronic price tag, which comprises a display module and a light exit structure located at one side of the display module.

[0006] The light exit structure comprises a light entrance surface and a light exit surface arranged along the thickness direction of the electronic price tag, the light exit surface comprises a light guide surface and a light transmission surface connected and arranged, and the light guide surface surrounds at least part of the light transmission surface.

[0007] The display module is used for emitting display light, the display light is transmitted to form transmission light through the light entrance surface, the transmission light is refracted through the light guide surface and transmitted through the light transmission surface.

[0008] Optionally, the light guide surface comprises a circular arc surface, and the light transmission surface comprises a plane.

[0009] The circular arc surface is convex to the side away from the light entrance surface, and the circular arc surface comprises a first boundary and a second boundary.

[0010] Along a first direction, the second boundary is located on the side of the first boundary away from the plane, and along the thickness direction of the electronic price tag, the second boundary is located on the side of the first boundary close to the display module, and the first direction intersects the thickness direction of the electronic price tag.

[0011] Optionally, the display module comprises a display area and a non-display area, and the non-display area surrounds at least part of the display area.

[0012] The second boundary is located in the non-display area in the orthographic projection of the plane where the display module is located.

[0013] Optionally, the display module comprises a display region and a non-display region, the non-display region surrounds at least part of the display region.

[0014] In the first direction, the display module comprises a display boundary located in the display region and close to one side of the non-display region, the first boundary coincides with the display boundary in the orthogonal projection of the plane where the display module is located.

[0015] Optionally, the electronic price tag further comprises a carrying body.

[0016] In the thickness direction of the electronic price tag, the carrying body is located on one side of the light-out structure, and the carrying body is used to carry the display module.

[0017] Optionally, the light-out structure further comprises a support part; in the first direction, the support part is located on one side of the light guide surface away from the light transmission surface; the first direction intersects the thickness direction of the electronic price tag.

[0018] The carrying body comprises a horizontally arranged part and a vertically arranged part; the support part is fixed to the vertically arranged part.

[0019] Optionally, the light-out structure further comprises a support part; in the first direction, the support part is located on one side of the light guide surface away from the light transmission surface; the first direction intersects the thickness direction of the electronic price tag.

[0020] The electronic price tag further comprises a cover plate; the cover plate comprises a bending part and a connecting part arranged in connection; in the thickness direction of the electronic price tag, the connecting part is located on one side of the support part away from the carrying body.

[0021] The bending part is fixed to the carrying body, and the connecting part is fixed to the support part.

[0022] Optionally, the electronic price tag further comprises a cover plate; the cover plate comprises a bending part and a connecting part arranged in connection; in the thickness direction of the electronic price tag, the connecting part is located on one side of the display module away from the carrying body.

[0023] The bending part is fixed to the carrying body, and the connecting part is fixed to the display module.

[0024] Optionally, in the thickness direction of the electronic price tag, the connecting part comprises a first connecting surface and a second connecting surface; the second connecting surface is located on one side of the first connecting surface away from the display module.

[0025] In the thickness direction of the electronic price tag, the second connecting surface is located on one side of the light guide surface close to the display module.

[0026] Optionally, the display module comprises an electronic paper ink screen or a liquid crystal display screen.

[0027] The display light emitted by the display module is transmitted through the light entrance surface to form transmitted light, the transmitted light is refracted through the light guide surface and transmitted through the light transmission surface, and then reaches the user's field of view, so that the light emitted from the edge position of the display area of the display module can be refracted through the light guide surface, and the area of the display area can be visually increased, the screen ratio is increased, the narrow frame design of the electronic price tag is realized, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings required to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some specific embodiments of the present application, and for those skilled in the art, the basic concepts of device structure, driving method and manufacturing method disclosed and prompted by various embodiments of the present application can be extended and extended to other structures and drawings, without doubt, these should be within the scope of the claims of the present application.

[0029] Figure 1 The first electronic price tag provided by the embodiment of the present application is shown in the cross-sectional structure diagram.

[0030] Figure 2 The second electronic price tag provided by the embodiment of the present application is shown in the cross-sectional structure diagram.

[0031] Figure 3 The third electronic price tag provided by the embodiment of the present application is shown in the cross-sectional structure diagram.

[0032] Figure 4 The fourth electronic price tag provided by the embodiment of the present application is shown in the cross-sectional structure diagram. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely by embodiments with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the basic concepts disclosed and prompted by the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0034] Figure 1 The first electronic price tag provided by the embodiment of the present application is shown in the cross-sectional structure diagram. Figure 1As shown, the electronic price tag comprises a display module 10 and a light-out structure 20 located at one side of the display module 10; the light-out structure 20 comprises an in-light surface 201 and an out-light surface 202 arranged along the thickness direction (Z direction shown in the figure) of the electronic price tag; the out-light surface 202 comprises a light-guiding surface 2021 and a light-transmitting surface 2022 arranged in connection; the light-guiding surface 2021 surrounds at least part of the light-transmitting surface 2022; the display module 10 is used for emitting display light, the display light is transmitted to form transmitted light through the in-light surface 201; the transmitted light is refracted through the light-guiding surface 2021 and transmitted through the light-transmitting surface 2022.

[0035] Optionally, continuing to refer to Figure 1 , the display module 10 comprises an electronic paper ink screen or a liquid crystal display screen.

[0036] Specifically, as a feasible implementation, the display module 10 comprises an electronic paper ink screen. The electronic paper is based on electronic ink technology, the principle of which is that a screen surface is attached with many "microcapsules" with very small volume, which encapsulate color particles of different colors, and the color particles of different colors are arranged in order by changing the electric charge, so as to present a visual effect of different colors; in the state without power supply, the screen picture of the electronic paper does not disappear and can still be continuously displayed. The electronic paper uses bistable technology, and only consumes power when the picture is changed, and does not consume power when the picture is static, so it has very excellent power saving performance compared with other display products; the electronic paper does not need a backlight source at all, and uses ambient light to strike the electronic paper ink screen, and then refracts the light to the viewer's eyes, which is the same as the visual principle of traditional paper or objects in life, so the brighter the ambient light source, the clearer the electronic paper is visible. It should be noted that when the display module 10 comprises an electronic paper ink screen, the ambient light strikes the display module 10, the display module 10 reflects the ambient light, and then forms and emits display light.

[0037] As another feasible implementation, the display module 10 comprises a liquid crystal display screen, which emits display light based on the optical anisotropy and electro-optic effect of liquid crystals.

[0038] Specifically, the light-out structure 20 is located at one side of the display module 10. Exemplarily, transparent adhesive can be used to connect the display module 10 and the light-out structure 20. The light-out structure 20 comprises the in-light surface 201 and the out-light surface 202. The out-light surface 202 comprises the light-guiding surface 2021 and the light-transmitting surface 2022 arranged in connection.

[0039] Specifically, the light guide surface 2021 surrounds at least part of the light transmission surface 2022, that is, the light guide surface 2021 is located at least one side of the light transmission surface 2022, so that the display light rays are emitted through the light emitting structure 20 and then reach the user's field of view. Further, the display light rays are transmitted through the light entrance surface 201 to form transmitted light rays, the transmitted light rays are refracted through the light guide surface 2021 and projected through the light transmission surface 2022, and then reach the user's field of view, that is, the light rays refracted through the light guide surface 2021 and the light transmission surface 2022 can reach the user's field of view, so that the user can see the display picture.

[0040] It should be noted that by setting the light guide surface 2021, the display light rays emitted from the edge position of the display area of the display module 10 can be refracted, and the area of the display area can be visually increased to increase the screen ratio, realize the narrow frame design of the electronic price tag, and improve the user experience.

[0041] Exemplarily, Figure 1 In the provided cross-sectional view, only the technical solution in which the light guide surface 2021 is located on one side of the light transmission surface 2022 is shown. It can be understood that the light guide surface 2021 can surround the light transmission surface 2022, that is, the light transmission surface 2022 can be provided with the light guide surface 2021 around, so that the area of the display area can be further visually increased to improve the user experience.

[0042] The electronic price tag provided by the embodiment of the utility model, the display light rays emitted by the display module are transmitted through the light entrance surface to form transmitted light rays, the transmitted light rays are refracted through the light guide surface and transmitted through the light transmission surface, and then reach the user's field of view, so that the light rays emitted from the edge position of the display area can be refracted through the light guide surface, and the area of the display area can be visually increased to increase the screen ratio, realize the narrow frame design of the electronic price tag, and improve the user experience.

[0043] Optionally, continuing to refer to Figure 1 The light guide surface 2021 comprises a circular arc surface 20211; the light transmission surface 2022 comprises a plane 20221; the circular arc surface 20211 is convex to the side away from the light entrance surface 201; the circular arc surface 20211 comprises a first boundary a1 and a second boundary a2; along the first direction (such as the X direction shown in the figure), the second boundary a2 is located on the side of the first boundary a1 away from the plane 20221, and along the thickness direction Z of the electronic price tag, the second boundary a2 is located on the side of the first boundary a1 close to the display module 10; the first direction X intersects with the thickness direction Z of the electronic price tag.

[0044] Specifically, the light guide surface 2021 includes a circular arc surface 20211, that is, the light emitting surface 202 is not a plane, but is composed of a circular arc surface 20211 and a plane 20221 arranged continuously. The circular arc surface 20211 protrudes away from the light incident surface 201, that is, the circular arc surface 20211 protrudes outward, rather than inward. In addition, the circular arc surface 20211 includes a first boundary a1 and a second boundary a2, the second boundary a2 is closer to the edge of the electronic price tag relative to the first boundary a1, and the position of the second boundary a2 is closer to the display module 10, that is, the position of the second boundary a2 is lower, so that the circular arc surface 20211 refracts the transmitted light, thereby increasing the area of the display area visually, achieving the effect of increasing the screen ratio, realizing the narrow frame design of the electronic price tag, and improving the user experience.

[0045] Optionally, Figure 2 A second cross-sectional structure schematic diagram of an electronic price tag is provided for the embodiments of the present application, which continues to refer to Figure 1 and Figure 2 The display module includes a display area AA and a non-display area NA, and the non-display area NA surrounds at least part of the display area AA; the second boundary a2 is located in the non-display area NA in the orthographic projection of the plane where the display module 10 is located.

[0046] Specifically, the second boundary a2 is located in the non-display area NA in the orthographic projection of the plane where the display module 10 is located, and the first boundary a1 can be located in the non-display area NA, can be located in the display area AA, or can be located at the junction position of the non-display area NA and the display area AA. Illustratively, continuing to refer to Figure 2 In the thickness direction Z of the electronic price tag, the light guide surface 2021 overlaps with the non-display area NA and the display area AA. In other words, the projection of the light guide surface 2021 on the display module is partially located in the display area AA and partially located in the non-display area NA, which on the one hand allows the transmitted light to be refracted by the light guide surface 2021, and is beneficial to increase the display area visually, and on the other hand can avoid edge image magnification distortion, thereby improving the performance of the electronic price tag.

[0047] Optionally, continuing to refer to Figure 1 The display module includes a display area AA and a non-display area NA, and the non-display area NA surrounds at least part of the display area AA; in the first direction X, the display module 10 includes a display boundary a3 located in the display area AA and close to the side of the non-display area; the first boundary a1 is coincident with the display boundary a3 in the orthographic projection of the plane where the display module 10 is located.

[0048] Specifically, the first boundary a1 is coincided with the display boundary a3 in the orthographic projection of the plane where the display module 10 is located, that is, the edge of the display area AA and the joint position of the light guide surface 2021 and the light transmission surface 2022 are flush, that is, the orthographic projection of the joint position of the light guide surface 2021 and the light transmission surface 2022 on the display module is coincided with the edge of the display area AA, so that the transmitted light can be refracted through the light guide surface 2021, which is conducive to visually increasing the display area and increasing the screen ratio.

[0049] Specifically, the light transmission surface 2022 is opposite to the display area AA, and the light guide surface 2021 is opposite to the non-display area NA, so that the display area AA does not need to be extended along the first direction X, and the light guide surface 2021 can refract the reflected light, thereby visually increasing the display area.

[0050] Optionally, continuing to refer to Figure 1 , the electronic price tag further comprises: a bearing body 30; along the thickness direction Z of the electronic price tag, the bearing body 30 is located on one side of the light-emitting structure 20, and the bearing body 30 is used for bearing the display module 10.

[0051] Specifically, the bearing body 30 is used for bearing the display module 10, so as to ensure the stability of the display module 10 in the use process, thereby ensuring the stability and accuracy of the display content.

[0052] It should be noted that if the electronic price tag comprises a cover plate, the bearing body 10 is connected with the cover plate 40, thereby effectively protecting the electronic elements in the bearing body 30 and the cover plate 40 from damage caused by external impact, dust, liquid and the like, thereby ensuring the stability and reliability of the electronic price tag.

[0053] Optionally, Figure 3 A third cross-sectional structure schematic diagram of an electronic price tag provided by the embodiment of the present application is shown in Figure 3 The light-emitting structure 20 further comprises a supporting part 203; along the first direction X, the supporting part 203 is located on the side of the light guide surface 2021 away from the light transmission surface 2022; the first direction X intersects with the thickness direction Z of the electronic price tag; the bearing body 30 comprises a horizontal part 301 and a vertical part 302 which are connected; and the supporting part 203 is fixed with the vertical part 302.

[0054] Specifically, the bearing body 30 comprises a horizontal part 301 and a vertical part 302 which are connected, the horizontal part 301 extends along the first direction X, and the vertical part 302 extends along the thickness direction Z of the electronic price tag, and the display module 10 can be located in the area surrounded by the horizontal part 301 and the vertical part 302.

[0055] Specifically, the light-exit structure 20 further comprises a support part 203, the support part 203 is located on the side of the light guide surface 2021 away from the light-transmission surface 2022 along the first direction X, that is, the support part 203 is located close to the light guide surface 2021. The support part 203 covers at least part of the vertical part 302, and the support part 203 is fixed with the vertical part 302, so as to realize the fixation between the bearing body 30 and the light-exit structure 20, and form the electronic price tag.

[0056] The technical scheme provided by the embodiment of the utility model does not need to set a cover plate, and the fixation between the support body 30 and the light-exit structure 20 can be realized through the vertical part 302, and the structure is simple.

[0057] Optionally, with reference to Figure 1 , the light-exit structure 20 further comprises a support part 203; the support part 203 is located on the side of the light guide surface 2021 away from the light-transmission surface 2022 along the first direction X; the first direction X intersects with the thickness direction Z of the electronic price tag; the electronic price tag further comprises a cover plate 40; the cover plate 40 comprises a bending part 401 and a connecting part 402 which are connected; along the thickness direction Z of the electronic price tag, the connecting part 402 is located on the side of the support part 203 away from the bearing body 30; the bending part 401 is fixed with the bearing body 30, and the connecting part 402 is fixed with the support part 203.

[0058] Specifically, the cover plate 40 comprises a bending part 401 and a connecting part 402 which are connected. Along the thickness direction Z of the electronic price tag, the connecting part 402 is located on the side of the support part 203 away from the bearing body 30, that is, the connecting part 402 covers at least part of the support part 203, so as to realize the fixation between the connecting part 402 and the support part 203. The bending part 401 is fixed with the bearing body 30, and the connecting part 402 is fixed with the support part 203, so that the stability of the electronic price tag formed is better.

[0059] Preferably, the sum of the thickness of the connecting part 402 and the thickness of the support part 203 is less than the thickness corresponding to the second boundary a2, so that the connecting part 402 can be prevented from covering the light guide surface 2021, and further affecting the refraction of the light guide surface 2021 to the light, which is beneficial to guarantee the light-exit effect of the light guide surface 2021, and further improve the performance of the electronic price tag.

[0060] Specifically, the waterproof and dustproof effect can be achieved by setting the cover plate 40.

[0061] Illustratively, the support part 203 can be treated as non-transparent through silk printing or other processes.

[0062] Optionally, Figure 4 A fourth cross-sectional structure schematic diagram of the electronic price tag provided by the embodiment of the utility model is as follows, Figure 4As shown, the electronic price tag further comprises a cover plate 40; the cover plate 40 comprises a bending part 401 and a connecting part 402; along the thickness direction Z of the electronic price tag, the connecting part 402 is located on the side of the display module 10 away from the bearing body 30; the bending part 401 is fixed with the bearing body 30, and the connecting part 402 is fixed with the display module 10.

[0063] Specifically, along the thickness direction Z of the electronic price tag, the connecting part 402 is located on the side of the display module 10 away from the bearing body 30, so that the connecting part 402 overlaps the edge of the display module 10, so as to fix the connecting part 402 with the display module 10. The bending part 401 is fixed with the bearing body 30, so that the electronic price tag structure can be formed. In addition, the technical scheme provided by the embodiment of the utility model does not need to set a supporting part in the light-emitting structure, and the structure is simple, and the stability of the electronic price tag is higher.

[0064] Optionally, continuing to refer to Figure 1 , Figure 2 and Figure 4 , along the thickness direction Z of the electronic price tag, the connecting part 402 comprises a first connecting surface 4021 and a second connecting surface 4022; the second connecting surface 4022 is located on the side of the first connecting surface 4021 away from the display module 10; along the thickness direction Z of the electronic price tag, the second connecting surface 4022 is located on the side of the light guide surface 2021 close to the display module 10.

[0065] Specifically, along the thickness direction Z of the electronic price tag, the second connecting surface 4022 is located on the side of the light guide surface 2021 close to the display module 10, that is, the upper surface of the connecting part 402 does not exceed the light guide surface 2021, that is, the light guide surface 2021 is higher than the upper surface of the connecting part 402, so as to facilitate ensuring the refraction of the light guide surface 2021 to light, thereby ensuring the display effect, preventing the upper surface of the connecting part 402 from being too high to cover the light guide surface 2021, and thereby affecting the refraction of the light guide surface 2021 to light.

[0066] Preferably, the second connecting surface 4022 is lower than the lowest point of the light guide surface 2021, so as to further ensure the light-emitting effect of the light guide surface 2021, thereby improving the performance of the electronic price tag.

[0067] In summary, the electronic price tag provided by the embodiment of the utility model can increase the display area from the visual aspect by setting the light guide surface, so as to increase the screen ratio. In addition, referring to Figures 1-4 , by improving the structure of the cover plate, the supporting body and the supporting part, on the one hand, the stability and reliability of the electronic price tag structure can be ensured, and on the other hand, the diversification of the electronic price tag structure can be realized.

[0068] It should be noted that the above only the preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, those skilled in the art can make various obvious changes, re-adjust, mutual combination and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application are described in more detail, but the present application is not limited to the above examples, without departing from the concept of the present application, it can also include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.

Claims

1. An electronic price tag, characterized in that, include: The display module and the light-emitting structure located on one side of the display module; The light-emitting structure includes a light-incident surface and a light-emitting surface arranged along the thickness direction of the electronic price tag; The light-emitting surface includes a light-guiding surface and a light-transmitting surface connected together; The light guide surface surrounds at least a portion of the light-transmitting surface; The display module is used to emit display light, which is transmitted through the light incident surface to form transmitted light. The transmitted light is refracted by the light guide surface and transmitted through the light transmission surface.

2. The electronic price tag according to claim 1, characterized in that, The light-guiding surface includes an arc surface; the light-transmitting surface includes a plane. The arc surface protrudes towards the side opposite to the light-incident surface; the arc surface includes a first boundary and a second boundary; Along the first direction, the second boundary is located on the side of the first boundary away from the plane, and along the thickness direction of the electronic price tag, the second boundary is located on the side of the first boundary closer to the display module; the first direction intersects the thickness direction of the electronic price tag.

3. The electronic price tag according to claim 2, characterized in that, The display module includes a display area and a non-display area, wherein the non-display area surrounds at least a portion of the display area; The orthographic projection of the second boundary onto the plane where the display module is located is in the non-display area.

4. The electronic price tag according to claim 2, characterized in that, The display module includes a display area and a non-display area, wherein the non-display area surrounds at least a portion of the display area; Along the first direction, the display module includes a display boundary located in the display area and close to the non-display area, and the orthographic projection of the first boundary onto the plane where the display module is located coincides with the display boundary.

5. The electronic price tag according to claim 1, characterized in that, The electronic price tag also includes: a carrier body; Along the thickness direction of the electronic price tag, the carrier body is located on one side of the light-emitting structure, and the carrier body is used to support the display module.

6. The electronic price tag according to claim 5, characterized in that, The light-emitting structure further includes a support portion; along a first direction, the support portion is located on the side of the light-guiding surface away from the light-transmitting surface; the first direction intersects the thickness direction of the electronic price tag; The supporting body includes a horizontal portion and a vertical portion connected together; the supporting portion is fixed to the vertical portion.

7. The electronic price tag according to claim 5, characterized in that, The light-emitting structure further includes a support portion; along a first direction, the support portion is located on the side of the light-guiding surface away from the light-transmitting surface; the first direction intersects the thickness direction of the electronic price tag; The electronic price tag also includes a cover plate; the cover plate includes a bent portion and a connecting portion connected together; along the thickness direction of the electronic price tag, the connecting portion is located on the side of the support portion away from the load-bearing body; The bent portion is fixed to the bearing body, and the connecting portion is fixed to the supporting portion.

8. The electronic price tag according to claim 5, characterized in that, The electronic price tag also includes a cover plate; the cover plate includes a bent portion and a connecting portion connected together; along the thickness direction of the electronic price tag, the connecting portion is located on the side of the display module away from the supporting body; The bent portion is fixed to the supporting body, and the connecting portion is fixed to the display module.

9. The electronic price tag according to claim 7 or 8, characterized in that, Along the thickness direction of the electronic price tag, the connecting portion includes a first connecting surface and a second connecting surface; the second connecting surface is located on the side of the first connecting surface away from the display module; Along the thickness direction of the electronic price tag, the second connecting surface is located on the side of the light guide surface closer to the display module.

10. The electronic price tag according to claim 1, characterized in that, The display module includes an electronic paper ink screen or a liquid crystal display screen.

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