OLED screen and terminal device having the same

Abstract

The present application discloses an OLED screen and a terminal device having the same. The OLED screen includes a light-emitting layer and a polarizer. The light-through hole includes a first light-transmitting hole formed in the light-emitting layer. The polarizer is provided with a first through hole. The first through hole is arranged opposite to the first light-transmitting hole and the first through hole is partially located in the light-transmitting hole. The diameter of the first light-transmitting hole is smaller than the diameter of the first through hole. The light-emitting layer includes a pixel layer arranged around the first light-transmitting hole. The pixel layer includes an exposed portion. The projection of the exposed portion along the axial direction of the light-transmitting hole is located in the first through hole. The side of the exposed portion facing the first through hole is provided with an opaque first metal wiring portion. The metal wiring in the first metal wiring portion is covered with a first light-shielding layer on at least one side facing the first through hole. The OLED screen and the terminal device having the same provided by the present application not only make the light-through hole in the display device have a better display effect, but also make the opening diameter less than 2.98 mm, thereby improving the screen-to-body ratio of the terminal device.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and discloses an OLED screen and a terminal device having the same. Background Art

[0002] Please refer to the attached Figure 1 The existing OLED display device is provided with a camera blind hole 301 adapted to the front camera 400, so as to allow external ambient light to enter the front camera 400. Based on the demand for the development of mobile phones towards full screens, the diameter of the camera blind hole 301 is getting smaller and smaller.

[0003] The existing OLED display device generally includes a pixel layer 310, a touch layer 320 and a polarizer 330, wherein a first hole 311 is formed in the pixel layer 310, a first through hole 331 is provided on the polarizer 330, and the first hole 311 and the first through hole 331 are arranged opposite to each other and are both partially located at the camera blind hole 301. The diameter of the camera blind hole 301 is limited by the diameter of the first hole 311. In order to reduce the reflection of the external ambient light on the pixel layer 310 to improve the display effect at the camera blind hole 301, it is necessary to adopt a diameter of the first hole 311 larger than the diameter of the first through hole 331 so that the polarizer 330 forms an overlap 332 on the pixel layer 320. At present, the minimum diameter of the first hole 311 in the art is 2.98 mm.

[0004] Due to the limitation of the polarizer 330 opening technology, the minimum diameter of the first through hole 331 in the polarizer 330 is 2.5 mm, so that the diameter of the camera blind hole 301 cannot be made smaller under the limitation of the first through hole 331, thereby limiting the improvement of the screen-to-body ratio. Summary of the invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an OLED screen and a terminal device having the same.

[0006] In a first aspect, the present application provides an OLED screen having a light-through hole for transmitting ambient light to a camera, the OLED screen comprising a light-emitting layer and a polarizer, the light-through hole comprising a first light-transmitting hole formed in the light-emitting layer, the polarizer being provided with a first through hole, the first through hole being arranged opposite to the first light-transmitting hole and the first through hole being partially located in the light-through hole;

[0007] Among them, the diameter of the first light-transmitting hole is smaller than the diameter of the first through hole, the light-emitting layer includes a pixel layer arranged around the first light-transmitting hole, the pixel layer includes an exposed portion, the projection of the exposed portion along the axial direction of the light-transmitting hole is located in the first through hole, and an opaque first metal routing portion is provided on the side of the exposed portion facing the first through hole, and the metal routings in the first metal routing portion are all covered with a first light-shielding layer on at least one side facing the first through hole.

[0008] Furthermore, it also includes a touch layer, which is located between the light-emitting layer and the polarizer. The light-through hole includes a second light-transmitting hole formed in the touch layer. The touch layer has a non-touch area around the edge of the second light-transmitting hole. The touch layer includes a second metal routing portion located in the non-touch area. The metal routings in the second metal routing portion are all covered with a second light-shielding layer on at least the side facing the first through hole.

[0009] Furthermore, a distance between an end of the second metal wiring portion away from the second light-transmitting hole and an end of the exposed portion close to the first light-transmitting hole in a radial direction of the light-transmitting hole is greater than or equal to 0.

[0010] Furthermore, the width of the exposed portion is greater than or equal to 0.15 mm.

[0011] Furthermore, the diameter of the first through hole is greater than 2.5 mm.

[0012] Furthermore, the first light-shielding layer is a black light-shielding layer.

[0013] Furthermore, the first light shielding layer is a metal oxide layer.

[0014] Furthermore, the second light-shielding layer is a black light-shielding layer.

[0015] Furthermore, the second light-shielding layer is a metal oxide layer.

[0016] In a second aspect, the present application also provides a terminal device, including an OLED screen and a camera arranged below the OLED screen.

[0017] The OLED screen and terminal device having the same provided by the present application, by making the diameter of the first light-transmitting hole in the light-emitting layer smaller than the diameter of the first through hole in the polarizer, the metal wiring in the first metal wiring portion is covered with a first shading layer on at least one side facing the first through hole. The first shading layer can greatly reduce the reflection of the first metal wiring portion to the external ambient light, which not only makes the light through hole in the display device have a better display effect, but also makes the minimum size of the diameter of the first light-transmitting hole in the light-emitting layer not limited by the diameter of the first through hole in the polarizer, so that the diameter of the first through hole can be less than 2.98mm, thereby improving the screen-to-body ratio of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 It is a schematic diagram of a part of the structure of an existing OLED screen;

[0020] Figure 2 A schematic diagram of a portion of the structure of an OLED screen provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Please refer to the attached Figure 2 The OLED screen 100 provided in the present application can be applied to terminal devices, but is not limited to terminal devices. Terminal devices include, for example but not limited to, mobile phones, computers, etc. The OLED screen 100 has a light hole 160, and the front camera 200 in the terminal device is located below the light hole 160, and the front camera 200 performs shooting operations through the light hole 160. The OLED screen 100 includes a first substrate 110, a light-emitting layer 120, a second substrate 130, a touch layer 140 and a polarizer 150 stacked in sequence, wherein the polarizer 150 can greatly reduce the reflection of external ambient light on the metal in the display device 100, thereby improving the display effect of the OLED screen 100. The first substrate 110 and the second substrate 130 are both made of light-transmitting materials, such as but not limited to glass.

[0024] Please continue to refer to the attached Figure 2 The embodiment of the present application provides an OLED screen 100, having a light hole 160 for transmitting external ambient light to a camera, the OLED screen 100 includes a light emitting layer 120 and a polarizer 150, the light hole 160 includes a first light transmission hole 122 formed in the light emitting layer 120, a first through hole 151 is provided on the polarizer 150, the first through hole 151 is arranged opposite to the first light transmission hole 122, and a part of the first through hole 151 is located in the light transmission hole 160;

[0025] Among them, the diameter of the first light-transmitting hole 122 is smaller than the diameter of the first through hole 151, the light-emitting layer 120 includes a pixel layer 121 arranged around the first light-transmitting hole 122, the pixel layer 121 includes an exposed portion 123, the axial projection of the exposed portion 123 along the light-transmitting hole 160 is located in the first through hole 151, and the side of the exposed portion 123 facing the first through hole 151 is provided with an opaque first metal routing portion, and the metal routing in the first metal routing portion is covered with a first light-shielding layer 124 on at least one side facing the first through hole 151.

[0026] In this embodiment, the first light-transmitting hole 122 and the first through hole 151 are arranged opposite to each other, and the diameter of the first light-transmitting hole 122 is smaller than the diameter of the first through hole 151, so that part of the light-emitting layer 120 is exposed at the first through hole 151. The light-emitting layer 120 includes a pixel layer 121, and the part of the pixel layer 121 exposed at the first through hole 151 is an exposed portion 123. The side of the exposed portion 123 facing the first through hole 151 is provided with an opaque first metal wiring portion, and the first metal wiring portion is exposed to the first through hole 151. The metal wiring in the first metal wiring portion is covered with a first light-shielding layer 124 on at least one side facing the first through hole 151, and the first light-shielding layer 124 can be used to greatly reduce the reflection of the external ambient light on the metal wiring in the first metal wiring portion, so as to avoid the first metal wiring portion from forming a large color difference around the light-transmitting hole 160, thereby improving the display effect at the light-transmitting hole 160.

[0027] Since the first light shielding layer 124 is provided on the first metal wiring portion on the surface of the exposed portion 123, the light hole 160 in the display device 100 has a good display effect, and the minimum size of the diameter of the first light-transmitting hole 122 in the light-emitting layer 120 is not limited by the diameter of the first through hole 151 in the polarizer 150, so that the diameter of the first through hole 151 can be less than 2.98mm, thereby improving the screen-to-body ratio of the terminal device. The diameter of the first light-transmitting hole 122 can be set according to the field of view of the front camera 200. For example, when the field of view of the front camera 200 is small, the diameter of the first light-transmitting hole 122 can be set smaller. At present, the minimum diameter of the first light-transmitting hole 122 can reach 2.4mm.

[0028] It should be understood that the first metal wiring portion can be a metal wiring in the pixel layer 121 that can reflect ambient light from the first through hole 151, and the first light shielding layer 124 is only used to shield the metal wiring in the first metal wiring portion, and does not block the light emission of the pixel. The light-through hole 160 is a "blind hole" structure, and the light-through hole 160 passes through the first substrate 110, the light-emitting layer 120, the second substrate 130, the touch layer 140 and the polarizer 150 in sequence. Among them, only the polarizer 150 is physically opened to form the first through hole 151. The corresponding light-transmitting holes are formed in the driving circuit layer, the light-emitting layer 120 and the touch layer 140 by avoiding components, for example, no wiring is done and no pixels are arranged at the light-through hole 160.

[0029] In some embodiments of the present application, the OLED screen 100 also includes a touch layer 140, which is located between the light-emitting layer 120 and the polarizer 150. The light-through hole 160 includes a second light-transmitting hole 142 formed in the touch layer 140. The touch layer 140 has a non-touch area around the edge of the second light-transmitting hole 142. The touch layer 140 includes a second metal routing portion 143 located in the non-touch area, and the metal routings in the second metal routing portion 143 are all covered with a second light-shielding layer 141 on at least the side facing the first through hole 151.

[0030] In this embodiment, the touch layer 140 is used to receive a touch signal input by a user to realize a corresponding function. The touch layer 140 can be set corresponding to the pixel layer 121, or corresponding to a part of the pixel layer 121. The touch layer 140 includes a non-touch area, which is arranged around the second light-transmitting hole 142 for metal routing of the touch layer 140. The touch layer 140 includes a second metal routing portion 143 formed in the non-touch area, and the metal routing in the second metal routing portion 143 is covered with a second light-shielding layer 141 at least on the side facing the first through hole 151. The second light-shielding layer 141 can be used to greatly reduce the reflection of the external ambient light on the metal routing in the second metal routing portion 143, so as to avoid the second metal routing portion 143 from forming a large color difference at the through hole 160, thereby improving the display effect at the through hole 160.

[0031] The first through hole 151 , the first light-transmitting hole 122 and the second light-transmitting hole 142 are preferably coaxially arranged.

[0032] In some embodiments of the present application, the pixel layer 121 has a non-display area around the edge of the first light-transmitting hole 122, and the pixel layer 121 includes a third metal wiring portion 125 located in the non-display area, and the third metal wiring portion 125 is located below the second metal wiring portion 143 and is arranged opposite to the second metal wiring portion 143. Since the third metal wiring portion 125 is substantially or completely blocked by the second metal wiring portion 143, the reflection of the external ambient light on the third metal wiring portion 125 can be ignored.

[0033] In some embodiments of the present application, the distance between the end of the second metal wiring portion 143 away from the second light-transmitting hole 142 and the end of the exposed portion 123 close to the first light-transmitting hole 122 along the radial direction of the light-transmitting hole is greater than or equal to 0. In this way, the first light-shielding layer 124 can be prevented from blocking the pixels in the pixel layer 121, so as to ensure the display area of ​​the pixel layer 121.

[0034] In some embodiments of the present application, the width of the exposed portion 123 is greater than or equal to 0.15 mm. In this way, the width of the exposed portion 123 can be relatively large, and the color difference tolerance at the exposed portion 123 can be reduced. Specifically, when the OLED screen 100 is processed, even if there is a certain installation error between the polarizer 150 and the pixel layer 121, since the width of the exposed portion 123 is greater than 0.15 mm, the color difference at the position deviation can be relatively small and easily ignored by the user's vision.

[0035] The width of the exposed portion 123 is shown in the attached figure. Figure 2 As shown in middle d.

[0036] In some embodiments of the present application, the diameter of the first through hole 151 is greater than 2.5 mm. Such a configuration not only satisfies the requirement that the diameter of the light-through hole 160 is less than 2.98 mm, but also allows the diameter of the first through hole 151 on the polarizer 150 to not need to be set to the minimum, thereby reducing the difficulty of setting the first through hole 151 on the polarizer 150 and reducing the manufacturing cost of the OLED screen 100. Of course, in other embodiments, the diameter of the first through hole 151 may be 2.5 mm.

[0037] In some embodiments of the present application, the first light shielding layer 124 and / or the second light shielding layer 141 are black light shielding layers. Such a configuration can make the first light shielding layer 124 and / or the second light shielding layer 141 have an excellent light absorption effect, thereby improving the display effect at the light through hole 160 .

[0038] Of course, the color of the first light shielding layer 124 and / or the second light shielding layer 141 is not limited to black, and may also be a color with a good light absorption effect such as purple.

[0039] Furthermore, the first light shielding layer 124 and / or the second light shielding layer 141 is a black metal oxide, specifically a metal oxide that is prepared by a blackening treatment. The metal oxide is, for example but not limited to, an oxide that is black after a blackening treatment, such as ferrosoferric oxide.

[0040] The embodiment of the present application also provides a terminal device, including the above-mentioned OLED screen 100 and a camera 200 arranged below the OLED screen 100.

[0041] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate positions or positional relationships are based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0042] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An OLED screen having a light hole for transmitting ambient light to the bottom of the screen, characterized in that: The OLED screen includes a light-emitting layer and a polarizer, the light-through hole includes a first light-transmitting hole formed in the light-emitting layer, the polarizer is provided with a first through hole, the first through hole is arranged opposite to the first light-transmitting hole and the first through hole is partially located in the light-through hole; Among them, the first light-transmitting hole and the first through hole are arranged opposite to each other, the diameter of the first light-transmitting hole is smaller than the diameter of the first through hole, the light-emitting layer includes a pixel layer arranged around the first light-transmitting hole, the pixel layer includes an exposed portion, the projection of the exposed portion along the axial direction of the light-transmitting hole is located in the first through hole, and a first opaque metal routing portion is provided on the side of the exposed portion facing the first through hole, and the metal routings in the first metal routing portion are all covered with a first light-shielding layer on at least one side facing the first through hole.

2. The OLED screen according to claim 1, characterized in that: The invention also includes a touch layer, wherein the touch layer is located between the light-emitting layer and the polarizer, the light-through hole includes a second light-transmitting hole formed in the touch layer, the touch layer has a non-touch area around the edge of the second light-transmitting hole, the touch layer includes a second metal wiring portion located in the non-touch area, and the metal wirings in the second metal wiring portion are all covered with a second light-shielding layer at least on the side facing the first through hole.

3. The OLED screen according to claim 2, characterized in that: A distance between an end of the second metal wiring portion away from the second light-transmitting hole and an end of the exposed portion close to the first light-transmitting hole in a radial direction along the light-transmitting hole is greater than or equal to 0.

4. The OLED screen according to any one of claims 1 to 3, characterized in that: The width of the exposed portion is greater than or equal to 0.15 mm.

5. The OLED screen according to claim 1, characterized in that: The diameter of the first through hole is greater than 2.5 mm.

6. The OLED screen according to claim 1, characterized in that: The first light shielding layer is a black light shielding layer.

7. The OLED screen according to claim 6, characterized in that: The first light shielding layer is a metal oxide layer.

8. The OLED screen according to claim 2, characterized in that: The second light shielding layer is a black light shielding layer.

9. The OLED screen according to claim 8, characterized in that: The second light shielding layer is a metal oxide layer.

10. A terminal device, characterized in that: It comprises the OLED screen as described in any one of claims 1 to 9 and a camera arranged under the OLED screen.

Images