Organic light-emitting display screen and electronic equipment

Abstract

The utility model relates to an organic light-emitting display screen and electronic equipment. The organic light-emitting display screen includes: a cover plate; a display body layer; the display main body layer is stacked between the cover plate and the metal supporting layer, and the metal supporting layer comprises a through groove area; the near field communication tag is arranged in the through groove area, and the near field communication tag and the metal supporting layer are arranged in an insulated mode.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and more particularly to an organic light-emitting display screen and an electronic device. Background Technology

[0002] With the pursuit of ultimate aesthetics, terminal products are increasingly trending towards narrow bezels. For example, in some mobile phones or tablets, narrow bezels can be achieved through organic light-emitting displays. Utility Model Content

[0003] This disclosure provides an organic light-emitting display screen and an electronic device to address the shortcomings of related technologies.

[0004] According to a first aspect of the present disclosure, an organic light-emitting display screen is provided, comprising:

[0005] Cover plate;

[0006] Display main layer;

[0007] A metal support layer, wherein the display body layer is stacked between the cover plate and the metal support layer, and the metal support layer includes a through-slot area;

[0008] A short-range communication tag is disposed within the through-slot area and is insulated from the metal support layer.

[0009] Optionally, it also includes a ferrite film, which is attached to the side of the metal support layer opposite to the display body layer, and the ferrite film covers the near-field communication tag.

[0010] Optionally, it also includes an insulating element that fills the space between the near-field communication tag and the inner wall of the through-slot area, and the insulating element is connected to both the near-field communication tag and the inner wall of the through-slot area.

[0011] Optional, also includes:

[0012] An adapter circuit board is electrically connected to both ends of the short-range communication tag, and the short-range communication tag and the antenna feed point are electrically connected through the adapter circuit board.

[0013] Optionally, the short-range communication tag is a ring coil tag or a square coil tag.

[0014] Optionally, the display body layer includes a metal trace layer;

[0015] The skin depth of the metal trace layer is related to the resonant frequency of the near-field communication tag, and the skin depth is greater than the thickness of the metal trace layer.

[0016] Optional,

[0017]

[0018] w = 2πf;

[0019] Wherein, δ is the skin depth (m), f is the resonant frequency of the near-field communication tag (Hz), u is the permeability of the metal trace layer in the display body layer (H / m), and σ is the conductivity of the metal trace layer in the display body layer (S / m).

[0020] Optionally, the near-field communication tag is used for NFC near-field communication.

[0021] Optionally, the metal support layer has a rectangular structure, and the through-slot area is located near any corner of the rectangular structure.

[0022] According to a second aspect of the present disclosure, an electronic device is provided, comprising:

[0023] Organic light-emitting display screen as described in any of the above embodiments;

[0024] An antenna feed point, which is electrically connected to a near-field communication tag;

[0025] Short-range communication chips;

[0026] Motherboard;

[0027] An antenna spring is disposed on the motherboard and is electrically connected to the antenna feed point and the short-range communication chip.

[0028] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0029] As can be seen from the above embodiments, this disclosure, on the one hand, can facilitate the realization of short-range communication by configuring a short-range communication tag on an organic light-emitting display screen, and on the other hand, avoids the metal support layer from obstructing the short-range communication tag, which helps to ensure the communication effect of the short-range communication tag.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0032] Figure 1This is a cross-sectional schematic diagram of an organic light-emitting display screen according to an exemplary embodiment.

[0033] Figure 2 This is a non-display side view of an organic light-emitting display screen according to an exemplary embodiment.

[0034] Figure 3 This is a measured curve of the reflectance of an organic light-emitting display screen in a passive state, according to an exemplary embodiment. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0036] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0037] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0038] With the increasing diversity of interactions between terminal products and the diversification of application scenarios, interactive methods such as one-touch file transfer and tap-to-transfer screens are widely used. These interactive methods are usually implemented through near-field communication (NFC) tags. However, the narrow bezels of OLED displays mean that the bezel distance is insufficient for placing NFC tags, and the under-display metal of OLED displays can easily block the signal from NFC tags, making the signal susceptible to shielding.

[0039] Based on this, such as Figure 1 and Figure 2As shown, this disclosure provides an organic light-emitting display screen, which includes a cover plate 1, a display body layer 2, and a metal support layer 3. The display body layer 2 is stacked between the cover plate 1 and the metal support layer 3. The cover plate 1 may include a glass cover plate, which can be a curved cover plate or a non-curved cover plate. The display body layer 2 may include structural layers such as a color filter, a metal wiring layer, an organic light-emitting layer, and a substrate. The metal support layer 3 may include a stainless steel layer, a copper foil layer, or other metal material layers. To improve the shock resistance of the organic light-emitting display screen, it may also include a foam layer disposed between the metal support layer 3 and the display body layer 2.

[0040] The metal support layer 3 includes a through-slot region 31 that penetrates the metal support layer 3, and the through-slot region 31 can be used as follows: Figure 2 The diagram shows a rectangular shape, but in other embodiments, the through-slot area 31 can also be circular, elliptical, or other irregular shapes, etc., and this disclosure does not impose any limitations on this. The organic light-emitting display screen also includes a near-field communication tag 4, which is disposed within the through-slot area 31 and is insulated from the metal support layer 3. Based on this, by configuring the near-field communication tag 4 on the organic light-emitting display screen, it is beneficial to enable near-field communication for electronic devices equipped with the organic light-emitting display screen, while avoiding obstruction of the near-field communication tag 4 by the metal support layer 3, thus ensuring the communication effect of the near-field communication tag 4. The thickness of the near-field communication tag 4 can be less than or equal to the thickness of the metal support layer 3, thereby avoiding protrusion caused by the placement of the near-field communication tag 4, which would affect the display effect of the organic light-emitting display screen.

[0041] like Figure 3 As shown, the yellow curve represents the measured reflection coefficient of the near-field communication tag 4 under passive conditions based on the technical solution of this disclosure. The frequency of point 1 on the yellow curve is 13.556MHz, and the reflection coefficient is approximately -5dB, which meets the design requirements. Under active conditions, when this organic light-emitting display is applied to a terminal, the radiation performance of the near-field communication tag 4 can be reflected by its sensing distance. Actual measurements show that this sensing distance can reach 28mm, which also meets the design requirements.

[0042] The near-field communication tag 4 can be used for NFC near-field communication. The near-field communication tag 4 can be a loop tag or a square loop tag. The regular shape of the near-field communication tag 4 facilitates its placement within the through-slot area 31. The shape of the near-field communication tag 4 and the through-slot area 31 can be the same as or different; this disclosure does not impose any limitation on this. The metal support layer 3 can be a rectangular structure, and the through-slot area 31 can be located near any corner of the rectangular structure, for example... Figure 2 As shown, the direction with the paper facing upward is the display side direction, and the direction with the paper facing downward is the non-display side direction. Therefore, the through-slot area 31 is located in the upper right area of ​​the metal support layer 3, which is beneficial for enabling interaction between terminal devices while the user maintains a normal holding posture.

[0043] In some embodiments, still using Figure 2 As shown, the organic light-emitting display screen also includes a ferrite film 5, which is attached to the side of the metal support layer 3 facing away from the display body layer 2, and covers the proximity communication tag 4. Thus, by blocking the light with the ferrite film 5, the radiation intensity of the electromagnetic waves from the proximity communication tag 4 towards the back of the organic light-emitting display screen can be reduced, while the radiation intensity of the electromagnetic waves from the proximity communication tag 4 towards the front of the organic light-emitting display screen can be increased. This facilitates signal communication even when the user maintains a normal holding posture for the electronic device.

[0044] In some embodiments, the organic light-emitting display screen further includes an insulating member 6, which fills the space between the near-field communication tag 4 and the inner wall of the through-slot region 31, and is connected to both the near-field communication tag 4 and the inner wall of the through-slot region 31. This allows for relative fixation between the metal support layer 3 and the near-field communication tag 4 via the insulating member 6, and also provides reinforcement between the insulating member 6 and the near-field communication tag 4, increasing the strength of the metal support layer 3. In some cases, the insulating member 6 can also wrap around the near-field communication tag 4 from above and below, further improving the stability of the near-field communication tag 4 and increasing the strength of the metal support layer 3.

[0045] As shown in the above embodiments, in order to realize the image display of the display body layer 2, the display body layer 2 includes a metal trace layer, which can be used to lay out data lines and scan lines. Multiple data lines and scan lines are arranged across the entire plane of the display body layer 2. The near-field communication tag 4 is located below the metal trace layer, so the radiation effect of the metal trace layer on the near-field communication tag 4 needs to be considered. Mainly, the skin depth of the metal trace layer is related to the resonant frequency of the near-field communication tag 4, and the skin depth is greater than the thickness of the metal trace layer. Theoretically, the electromagnetic waves of the near-field communication tag 4 can radiate through the metal trace layer towards the screen side, and actual measurements also confirm that the electromagnetic waves of the near-field communication tag 4 can radiate through the metal trace layer towards the screen side.

[0046] For example, assuming the near-field communication tag 4 is an NFC tag with a resonant frequency of 13.56MHz, according to the formula:

[0047]

[0048] w = 2πf

[0049] δ represents the skin depth (m), f represents the resonant frequency of the short-range communication tag (Hz), u represents the permeability of the metal trace layer in display body layer 2 (H / m), and σ represents the conductivity of the metal trace layer in display body layer 2 (S / m). Using u = 4π × 10⁻⁶ -7 Given H / m and σ = 40000S / m, we can calculate δ = 0.068mm. Therefore, as long as the thickness of the metal trace layer is less than 0.068mm, such as 0.053mm, the radiation requirements can be met.

[0050] Since the near-field communication tag 4 is located in the middle of the metal support layer 3 near the edge, it cannot typically achieve a direct communication connection with the antenna feed point. Therefore, the organic light-emitting display screen also includes an adapter circuit board, which is electrically connected to both ends of the near-field communication tag 4. The adapter circuit board electrically connects the near-field communication tag 4 and the antenna feed point, which can then be electrically connected to the near-field communication chip.

[0051] Based on the technical solution of this disclosure, an electronic device is also provided. This electronic device includes the organic light-emitting display screen, antenna feed point, near-field communication chip, motherboard, and antenna spring as described in any of the foregoing embodiments. The near-field communication tag 4 of the organic light-emitting display screen is electrically connected to the antenna feed point. For example, the near-field communication tag 4 and the antenna feed point can be electrically connected via an adapter circuit board or an adapter wire. The antenna spring is disposed on the motherboard, and the near-field communication chip and the antenna feed point can be electrically connected through the antenna spring, thereby enabling signal feeding into the near-field communication tag 4.

[0052] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0053] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An organic light-emitting display screen, characterized in that, include: Cover plate; Display main layer; A metal support layer, wherein the display body layer is stacked between the cover plate and the metal support layer, and the metal support layer includes a through-slot area; A short-range communication tag is disposed within the through-slot area and is insulated from the metal support layer.

2. The organic light-emitting display screen according to claim 1, characterized in that, It also includes a ferrite film, which is attached to the metal support layer on the side opposite to the display body layer, and the ferrite film covers the near-field communication tag.

3. The organic light-emitting display screen according to claim 1, characterized in that, It also includes an insulating element that fills the space between the near-field communication tag and the inner wall of the through-slot area, and the insulating element is connected to both the near-field communication tag and the inner wall of the through-slot area.

4. The organic light-emitting display screen according to claim 1, characterized in that, Also includes: An adapter circuit board is electrically connected to both ends of the short-range communication tag, and the short-range communication tag and the antenna feed point are electrically connected through the adapter circuit board.

5. The organic light-emitting display screen according to claim 1, characterized in that, The short-range communication tag is a ring coil tag or a square coil tag.

6. The organic light-emitting display screen according to claim 1, characterized in that, The display body layer includes a metal wiring layer; The skin depth of the metal trace layer is related to the resonant frequency of the near-field communication tag, and the skin depth is greater than the thickness of the metal trace layer.

7. The organic light-emitting display screen according to claim 6, characterized in that, w = 2πf; Wherein, δ is the skin depth (m), f is the resonant frequency of the near-field communication tag (Hz), u is the permeability of the metal trace layer in the display body layer (H / m), and σ is the conductivity of the metal trace layer in the display body layer (S / m).

8. The organic light-emitting display screen according to claim 6, characterized in that, The near-field communication tag is used for NFC near-field communication.

9. The organic light-emitting display screen according to claim 1, characterized in that, The metal support layer has a rectangular structure, and the through-slot area is located near any corner of the rectangular structure.

10. An electronic device, characterized in that, include: Organic light-emitting display screen as described in any one of claims 1-9; An antenna feed point, which is electrically connected to a short-range communication tag; Short-range communication chips; Motherboard; An antenna spring is disposed on the motherboard and electrically connected to the antenna feed point and the short-range communication chip.

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