Blind hole AMOLED display

Abstract

The utility model discloses a blind hole AMOLED display, which comprises an upper glass substrate and a lower glass substrate, the upper glass substrate is attached to the lower glass substrate, the lower glass substrate is provided with a blind hole area and a display area, a wiring area is arranged between the blind hole area and the display area, the wiring area is arranged around the periphery of the blind hole area, and the blind hole area is provided with a plurality of through holes. The blind hole area is filled with UV glue, and the inner side and the outer side, opposite to the blind hole area, of the wiring area are each provided with a PI step used for blocking flowing of the UV glue. According to the utility model, the PI steps for slowing down the flowing of the UV glue are arranged on the inner side and the outer side of the blind hole area, and the retaining wall and the supporting column layer are arranged in the wiring area, so that the UV glue is further prevented from flowing to the display area, the influence of the UV glue on the display area is reduced, and the display effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a blind-hole AMOLED display. Background Technology

[0002] With the further development of display technology, consumers have increasingly higher demands for full-screen displays, and under-display camera technology has begun to be widely used. However, due to the light-sensing characteristics of cameras, higher transmittance is required in the under-display camera area (blind hole area) to ensure image quality. Therefore, the fewer film layers in the blind hole area, the better. This leads to a significant height difference between the blind hole area and the non-blind hole area due to the difference in film layers. This height difference causes a severe Newton's rings effect, greatly affecting the transmittance and appearance of the blind hole area. The industry's solution to Newton's rings is to fill the blind hole with UV adhesive to reduce this height difference. However, the fluidity of UV adhesive may cause it to seep into the display area, affecting the display effect. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a blind-hole AMOLED display.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A blind-hole AMOLED display includes: an upper glass substrate and a lower glass substrate, the upper glass substrate being bonded to the lower glass substrate, the lower glass substrate having a blind-hole area and a display area, a wiring area being provided between the blind-hole area and the display area, the wiring area being disposed around the periphery of the blind-hole area, the blind-hole area being filled with UV adhesive, and the wiring area having PI steps on both the inner and outer sides of the blind-hole area to block the flow of the UV adhesive.

[0006] In one embodiment, the trace area has a first PI step, a second PI step, and a third PI step formed on the inner and outer sides of the blind via area. The first PI step and the second PI step are both located on the inner side of the blind via area, and the third PI step is located on the outer side of the blind via area.

[0007] In one embodiment, the first PI step extends from the inside of the blind hole area to near the inner edge of the display area, the second PI step extends from the inside of the blind hole area to near the inner edge of the display area, and the position of the second PI step on the inside of the blind hole area is a certain distance away from the position of the first PI step on the inside of the blind hole area, and the third PI step extends outward from the outside of the blind hole area to near the inner edge of the display area.

[0008] In one of the embodiments, the first PI step and the second PI step are about 20 um away from the inner edge of the blind hole area, and the third PI step is about 20 um away from the outer edge of the blind hole area.

[0009] In one of the embodiments, the second PI step is above the first PI step, and the third PI step is above the second PI step.

[0010] In one of the embodiments, a support column layer is arranged in the wiring area, the support column layer is located in the peripheral area of the wiring area relative to the blind hole area, the support column layer is above the third PI step, and the support column layer is close to the inner edge of the display area, and the support column layer is arranged around the inner circumferential direction of the display area.

[0011] In one of the embodiments, two retaining walls are arranged in the wiring area, the two retaining walls are a first retaining wall and a second retaining wall, and the first retaining wall and the second retaining wall are located in the same layer as the support column layer.

[0012] In one of the embodiments, the first retaining wall and the second retaining wall are sequentially arranged in the periphery of the blind hole area, the first retaining wall is located about 200 um away from the outer side of the blind hole area, and the spacing between the first retaining wall and the second retaining wall is 60 um.

[0013] In one of the embodiments, the first retaining wall and the second retaining wall are both protruding circular rings with a width of 20 um, and the first retaining wall and the second retaining wall are both arranged around the periphery of the blind hole area.

[0014] In one of the embodiments, the first retaining wall and the second retaining wall are both provided with a plurality of truncation portions in the circumferential direction, the truncation portions truncate the first retaining wall and the second retaining wall, and the plurality of truncation portions on the first retaining wall and the plurality of truncation portions on the second retaining wall are different in position.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The utility model discloses a blind hole AMOLED display forms the first way of blocking to UV glue through being equipped with first PI step, second PI step and third PI step respectively at the inside and outside two side edges of the wiring area relative to the blind hole area, slows down the flowability of UV glue, then through the first baffle wall and second baffle wall of convex shape to further block the flow of UV glue to the display area, finally sets up the support column layer in the inside edge of display area, and the support column layer is with first baffle wall and second baffle wall in the same layer, blocks UV glue through multilayer, controls the flow of UV glue, reduces the influence of UV glue to the display area, guarantees the display effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiments.

[0018] Figure 1 The utility model provides a blind hole AMOLED display's structural schematic diagram;

[0019] Figure 2 The utility model discloses a blind hole AMOLED display's structural schematic diagram; Figure 1 The utility model discloses a blind hole AMOLED display's structural schematic diagram;

[0020] Figure 3 The utility model discloses a blind hole AMOLED display's structural schematic diagram.

[0021] EXPLANATION OF DRAWINGS: 10, upper glass substrate;20, lower glass substrate;21, blind hole area;22, display area;23, wiring area;30, UV glue;40, first PI step;50, second PI step;60, third PI step;70, support column layer;80, first baffle wall;90, second baffle wall;100, cut-off part. DETAILED DESCRIPTION

[0022] In order to facilitate understanding the utility model, the following will refer to relevant drawings and carry out more comprehensive description to the utility model.

[0023] A blind hole AMOLED display, refer to Figures 1-3The blind hole area 21 is provided with a groove relative to the lower glass substrate 20, and the film layer of the lower glass substrate 20 is removed in the groove to provide light transmittance. The blind hole area 21 can retain part of the OLED evaporation material or remove all the OLED evaporation material to improve the light transmittance in the blind hole area 21 and improve the camera shooting effect. In the embodiment, the blind hole area 21 on the lower glass substrate 20 has one or more, and the shape of the blind hole area 21 can be circular, pill-shaped or other shapes. The position of the blind hole area 21 can be anywhere on the left side, middle, right side or the like of the blind hole AMOLED display. The shape, position and number of the blind hole area 21 are not limited.

[0024] With reference to Figure 1 and Figure 2 , the blind hole area 21 and the display area 22 are provided with a wiring area 23, and the wiring area 23 is arranged around the periphery of the blind hole area 21.

[0025] With reference to Figure 3 , the position of the blind hole area 21 is filled with UV glue 30, which is high-transmittance optical glue and can be light-cured glue or heat-cured glue. The cured UV glue 30 can be used for normal light penetration and also for supporting between the lower glass substrate 20 and the upper glass substrate 10 to reduce the Newton ring phenomenon caused by glass deformation. It should be noted that the position of the UV glue 30 in the blind hole area 21 is not limited, and the UV glue 30 can be applied at the position of the lower glass substrate 20 relative to the blind hole area 21 or the position of the upper glass substrate 10 relative to the blind hole area 21. After the UV glue 30 is applied in the blind hole area 21, the upper glass substrate 10 and the lower glass substrate 20 are bonded and packaged.

[0026] With reference to Figures 1-3Since the film layers of the blind hole area 21 and the display area 22 are different, the blind hole area 21 and the display area 22 have a significant height difference, and the Newton ring effect caused by the height difference greatly affects the transmittance and appearance effect of the blind hole area 21. After the blind hole area 21 is filled with UV glue 30, although the height difference problem can be solved, the flowability of the UV glue 30 is large, which can make the UV glue 30 penetrate into the display area 22 and affect the display effect. Therefore, the PI step for blocking the flow of the UV glue 30 is arranged on the inner and outer sides of the blind hole area 21 relative to the wiring area 23, and the PI step can slow down the flowability of the UV glue 30. Specifically, the first PI step 40, the second PI step 50 and the third PI step 60 are formed on the inner and outer sides of the blind hole area 21 relative to the wiring area 23. Among them, the first PI step 40 and the second PI step 50 are located on the inner side of the blind hole area 21, and the third PI step 60 is located on the outer side of the blind hole area 21.

[0027] Further, referring to Figures 1-3 , the first PI step 40 extends from the inner side of the blind hole area 21 to the inner side edge close to the display area 22, the second PI step 50 extends from the inner side of the blind hole area 21 to the inner side edge close to the display area 22, and the position of the second PI step 50 on the inner side of the blind hole area 21 is separated from the position of the first PI step 40 on the inner side of the blind hole area 21 by a certain distance. The third PI step 60 extends outward from the outer side of the blind hole area 21 to the inner side edge close to the display area 22. Specifically, the first PI step 40 and the second PI step 50 are about 20um away from the inner side edge of the blind hole area 21, and the third PI step 60 is about 20um away from the outer side edge of the blind hole area 21. It should be noted that the second PI step 50 is located above the first PI step 40, and the third PI step 60 is located above the second PI step 50.

[0028] Further, referring to Figures 1-3 , the support column layer 70 is arranged in the range of the wiring area 23, the support column layer 70 is located in the peripheral region of the wiring area 23 relative to the blind hole area 21, the support column layer 70 is arranged above the third PI step 60, and the support column layer 70 is located close to the inner side edge of the display area 22. The support column layer 70 is arranged around the inner circumferential direction of the display area 22. It should be noted that the support column layer 70 is composed of a plurality of protruding support columns, and the plurality of support columns are uniformly distributed along the inner circumferential direction of the display area 22 to further block the flow of the UV glue 30 to the outside of the display area 22.

[0029] Further, referring to Figures 1-3The range of the wiring area 23 is provided with a plurality of retaining walls. In the embodiment, the number of the retaining walls is two, and the two retaining walls are a first retaining wall 80 and a second retaining wall 90. The first retaining wall 80 and the second retaining wall 90 are located at the same layer as the support column layer 70. The first retaining wall 80 and the second retaining wall 90 are sequentially arranged at the outer circle of the blind hole area 21. The first retaining wall 80 is located at a position about 200 um away from the outer side of the blind hole area 21, and the spacing between the first retaining wall 80 and the second retaining wall 90 is 60 um. The first retaining wall 80 and the second retaining wall 90 are both circular rings in a convex shape with a width of 20 um, and are arranged around the periphery of the blind hole area 21. It should be noted that the shape of the first retaining wall 80 and the second retaining wall 90 can be a smooth circular ring, or a circular ring with serrations, or other different shapes.

[0030] With reference to Figure 1 and Figure 2 , the first retaining wall 80 and the second retaining wall 90 are both provided with a plurality of truncation portions 100 in the circumferential direction. The truncation portions 100 truncate the first retaining wall 80 and the second retaining wall 90. The plurality of truncation portions 100 on the first retaining wall 80 are different from the plurality of truncation portions 100 on the second retaining wall 90 in position, so that the positions of truncating the first retaining wall 80 and the second retaining wall 90 are different, thereby more effectively blocking the flow of the UV glue 30 to the wiring area 23 and the display area 22. It should be noted that in the embodiment, the number of the retaining walls is two, and the number of the retaining walls can be set to be multiple according to actual needs. When the space is sufficient, the more the number of the retaining walls, the better the blocking effect of the UV glue 30.

[0031] Further, with reference to Figures 1-3 , the first retaining wall 80 and the second retaining wall 90 are both located at the inner periphery of the support column layer 70. The first PI step 40, the second PI step 50, and the third PI step 60 form the first blocking of the UV glue 30 to slow down the flowability of the UV glue 30. Then, the first retaining wall 80 and the second retaining wall 90 in a convex shape are arranged to further block the flow of the UV glue 30 to the display area 22. Finally, the support column layer 70 is arranged near the inner side edge of the display area 22. The support column layer 70 is located at the same layer as the first retaining wall 80 and the second retaining wall 90. After being blocked by multiple layers, the flow of the UV glue 30 is controlled, the influence of the UV glue 30 on the display area 22 is reduced, and the display effect is ensured.

[0032] The utility model discloses a first PI step 40, a second PI step 50 and a third PI step 60 are equipped with respectively at the inside and outside two side edges of the blind hole area 21 relative to the wiring area 23 first PI step 40, second PI step 50 and third PI step 60 form the first way of blocking to UV glue 30, slow down the flowability of UV glue 30, then through the first dam 80 and second dam 90 of convex appearance setting further block UV glue 30 flow to display area 22, finally set up support column layer 70 at the inside edge of display area 22 close, support column layer 70 with first dam 80 and second dam 90 are located at the same layer, through the blocking of UV glue 30 to multiple layers, control the flow of UV glue 30, reduce the influence of UV glue 30 to display area 22, guarantee the display effect.

[0033] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A blind-hole AMOLED display, characterized in that, include: An upper glass substrate (10) and a lower glass substrate (20) are attached to each other. The lower glass substrate (20) has a blind hole area (21) and a display area (22). A wiring area (23) is provided between the blind hole area (21) and the display area (22). The wiring area (23) is arranged around the periphery of the blind hole area (21). The blind hole area (21) is filled with UV adhesive (30). The wiring area (23) has PI steps on both the inner and outer sides relative to the blind hole area (21) to block the flow of the UV adhesive (30).

2. The blind-hole AMOLED display according to claim 1, characterized in that, The wiring area (23) has a first PI step (40), a second PI step (50) and a third PI step (60) formed on the inner and outer sides of the blind hole area (21). The first PI step (40) and the second PI step (50) are both located on the inner side of the blind hole area (21), and the third PI step (60) is located on the outer side of the blind hole area (21).

3. A blind-hole AMOLED display according to claim 2, characterized in that, The first PI step (40) extends from the inside of the blind hole area (21) to near the inner edge of the display area (22), the second PI step (50) extends from the inside of the blind hole area (21) to near the inner edge of the display area (22), and the position of the second PI step (50) on the inside of the blind hole area (21) is a certain distance away from the position of the first PI step (40) on the inside of the blind hole area (21), and the third PI step (60) extends outward from the outside of the blind hole area (21) to near the inner edge of the display area (22).

4. A blind-hole AMOLED display according to claim 3, characterized in that, The first PI step (40) and the second PI step (50) are about 20 μm away from the inner edge of the blind hole area (21), and the third PI step (60) is about 20 μm away from the outer edge of the blind hole area (21).

5. A blind-hole AMOLED display according to claim 3, characterized in that, The second PI step (50) is located above the first PI step (40), and the third PI step (60) is located above the second PI step (50).

6. A blind-hole AMOLED display according to claim 5, characterized in that, A support column layer (70) is provided within the wiring area (23). The support column layer (70) is located in the outer area of ​​the wiring area (23) relative to the blind hole area (21). The support column layer (70) is located above the third PI step (60) and is close to the inner edge of the display area (22). The support column layer (70) is arranged around the inner circumference of the display area (22).

7. A blind-hole AMOLED display according to claim 6, characterized in that, Two retaining walls are provided within the wiring area (23), namely a first retaining wall (80) and a second retaining wall (90), and the first retaining wall (80) and the second retaining wall (90) are located on the same layer as the supporting column layer (70).

8. A blind-hole AMOLED display according to claim 7, characterized in that, The first barrier wall (80) and the second barrier wall (90) are arranged sequentially on the periphery of the blind hole area (21). The first barrier wall (80) is located at a distance of about 200 μm from the outside of the blind hole area (21), and the distance between the first barrier wall (80) and the second barrier wall (90) is 60 μm.

9. A blind-hole AMOLED display according to claim 8, characterized in that, Both the first barrier (80) and the second barrier (90) are raised rings with a width of 20 μm, and both the first barrier (80) and the second barrier (90) surround the periphery of the blind hole area (21).

10. A blind-hole AMOLED display according to claim 9, characterized in that, Both the first retaining wall (80) and the second retaining wall (90) are provided with a plurality of cut-off portions (100) along the circumferential direction. The cut-off portions (100) cut off the first retaining wall (80) and the second retaining wall (90). The positions of the plurality of cut-off portions (100) on the first retaining wall (80) and the plurality of cut-off portions (100) on the second retaining wall (90) are different.

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