CN213988886U

CN213988886U - Display panel and display device

Info

Publication number: CN213988886U
Application number: CN202120223994.9U
Authority: CN
Inventors: 张盛鹉
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-08-17
Anticipated expiration: 2031-01-27

Abstract

The application provides a display panel and display equipment, and relates to the technical field of display. The display panel comprises a body, wherein the body is provided with a display area, a non-display area and a binding groove arranged in the non-display area; the non-display area is distributed along the periphery of the display area; the binding groove is sunken towards the inside of the body along the normal of the non-display area, and a transition area is formed between the binding groove and the non-display area; the surface of the transition area is covered with an insulating protective layer. Wherein, the setting of binding groove is that the contact nature is good in order to guarantee welded metal pin, and from this, the transition zone can cause the metal to remain through technologies such as exposure, development and sculpture, later coats on the surface at the transition zone and is stamped the insulating protective layer, and the insulating protective layer keeps apart remaining metal and pin, avoids remaining metal to lead to the problem of pin short circuit, ensures display panel normal work, promotes the production yield of product.

Description

Display panel and display device

Technical Field

The application relates to the technical field of display, in particular to a display panel and display equipment.

Background

The display panel is provided with a display part and a non-display part, wherein the non-display part is provided with a binding area, and the binding area is used for exposing the welding metal pins. Thus, in order to expose the metal pins of the bonding regions, a portion of the film layer covered by the bonding regions needs to be removed to ensure good solder contact.

Since the thickness of the removed film is relatively large, the bonding region is recessed to form a large height difference after the film is removed. In the subsequent film layer manufacturing process, the photoresist is gathered at the low-lying position, so that the development of the position is insufficient, and metal residue is caused during etching. The residual metal can contact the pins when the pins are welded, so that short circuit is caused, and the panel cannot work normally.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough among the prior art, this application provides a display panel and display device for among the solution prior art, there is metal residue after the sculpture, appears the short circuit when remaining metal leads to welding pin, and then the unable normal work's of display panel technical problem.

In order to achieve the above object, in a first aspect, the present application provides a display panel, including a body, the body having a display area, a non-display area, and a binding slot disposed in the non-display area;

the non-display area is distributed along the periphery of the display area;

the binding groove is sunken towards the inside of the body along the normal of the non-display area, and a transition area is formed between the binding groove and the non-display area;

and an insulating protective layer covers the surface of the transition region.

With reference to the first aspect, in one possible implementation, the transition area is a slope, and the slope gradually increases along the binding groove to the height of the non-display area.

With reference to the first aspect, in one possible implementation manner, the slope surface of the slope is in the shape of an arc-shaped curved surface.

With reference to the first aspect, in one possible embodiment, the slope surface of the slope is in a continuous wave shape.

With reference to the first aspect, in a possible implementation manner, a step is provided on a slope surface of the slope.

With reference to the first aspect, in one possible implementation manner, the number of the steps is multiple.

With reference to the first aspect, in one possible embodiment, the insulating protection layer is an insulating protection film.

With reference to the first aspect, in one possible embodiment, the insulating protective layer extends from the non-display region to a bottom surface of the binding groove.

With reference to the first aspect, in one possible implementation manner, the body includes a substrate layer and a membrane layer set covering the substrate layer, and the binding groove is formed by recessing the membrane layer set toward the substrate layer.

In a second aspect, the present application further provides a display device, including the display panel provided in the first aspect.

Compared with the prior art, the beneficial effects of the application are that:

the application provides a display panel and display equipment, wherein the display panel comprises a body, the body is provided with a display area, a non-display area and a binding groove arranged in the non-display area; the non-display area is distributed along the periphery of the display area; the binding groove is sunken towards the inside of the body along the normal of the non-display area, and a transition area is formed between the binding groove and the non-display area; the surface of the transition area is covered with an insulating protective layer. Wherein, the setting of binding groove is good in order to guarantee the contact nature of welded metal pin, and from this, the transition zone can cause the metal to remain through technologies such as exposure, development and sculpture, later coats on the surface at the transition zone and is stamped insulating protective layer, and then keeps apart remaining metal and pin by insulating protective layer, avoids remaining metal to lead to the problem of pin short circuit, ensures that display panel normally works, promotes the production yield of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 illustrates a schematic structural diagram of a display panel provided in an embodiment of the present application;

FIG. 2 shows a partial cross-sectional view taken along the first line A-A of FIG. 1;

FIG. 3 shows a second partial sectional view in the direction A-A in FIG. 1;

FIG. 4 shows a third partial sectional view in the direction A-A in FIG. 1;

FIG. 5 shows a partial cross-sectional view in the fourth direction A-A of FIG. 1;

fig. 6 shows a partial cross-sectional view in the direction of a fifth a-a in fig. 1.

Description of the main element symbols:

100-body; 100 a-display area; 100 b-non-display area; 100 c-binding groove; 110-a substrate layer; 120-membrane layer set; 120 a-a sub-film layer; 120 b-surface; 120 c-bottom surface; 121-a transition region; 1210-slope; 122-metal; 130-an insulating protective layer; 140-pins.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 and fig. 2, in the display panel provided in this embodiment, the short circuit problem does not exist when the pins 140 are soldered, so that the normal operation of the display panel is ensured, and the production yield of the product is effectively improved.

Referring to fig. 1, the display panel provided in the present embodiment includes a body 100, and the body 100 includes a display area 100a, a non-display area 100b, and a binding groove 100c disposed in the non-display area 100 b.

The non-display area 100b is distributed along the periphery of the display area 100a, and it can be understood that the display area 100a is relative to the non-display area 100b, and after the display panel is powered on, the display area 100a can be used for displaying information, and the non-display area 100b cannot be used for displaying information.

That is, there is a region where no information is displayed around the display panel, that is, the non-display region 100b, and the middle region surrounded by the non-display region 100b is the display region 100 a.

The binding groove 100c is provided in the non-display area 100b, and the binding groove 100c is recessed toward the inside of the body 100 along a normal line of the non-display area 100b, in other words, the binding groove 100c is formed by hollowing out an area toward the inside of the body 100. That is, the bottom surface 120c of the binding groove 100c is lower than the surface 120b of the body 100.

Referring to fig. 2, the body 100 further includes a substrate layer 110 and a film layer set 120 covering the substrate layer 110, and the bonding groove 100c is formed by the film layer set 120 being recessed toward the substrate layer 110. The film layer group 120 includes a plurality of sub-film layers 120a, and the plurality of sub-film layers 120a are sequentially stacked.

The sub-film layer 120a disposed away from the substrate layer 110 is a planarization layer for planarizing the in-plane film layer.

In some embodiments, the body 100 is a flexible structure, that is, the display panel is a flexible display panel. Therefore, the substrate layer 110 and the membrane layer group 120 covering the substrate layer 110 are both flexible layers.

The binding groove 100c is provided to expose a portion of the pin 140 for welding a metal material inside the body 100, so as to ensure good contact after welding.

Since the bottom surface 120c of the binding groove 100c is lower than the surface 120b of the body 100, a transition region 121 is formed between the binding groove 100c and the non-display region 100 b. In other words, a past region is formed between the bottom surface 120c of the binding groove 100c and the surface 120b of the body 100.

Wherein the transition area 121 is distributed around the binding slot 100 c.

The surface of the transition region 121 is covered with an insulating protection layer 130, and the insulating protection layer 130 is disposed to cover the residual metal 122 in the transition region 121, so as to avoid the short circuit problem when soldering the pins 140.

Further, the insulating protection layer 130 extends from the non-display area 100b to the bottom surface 120c of the bonding groove 100c to cover the remaining metal 122.

After the bonding groove 100c is formed, the subsequent film layer is subjected to exposure, development, etching, and other processes. Due to the existence of the transition region 121 between the binding groove 100c and the non-display region 100b, the photoresist may be gathered to a low-profile place, and thus the existence of the transition region 121 may cause the photoresist to be gathered at the junction of the transition region 121 and the binding groove 100c, which may easily cause insufficient development at the junction, and may further cause the metal 122 to remain after etching.

It can be understood that, in order to avoid the problem that the residual metal 122 causes short circuit of the soldered pin 140, the transition region 121 is covered with the insulating protection layer 130 after the subsequent film layer manufacturing process, and the residual metal 122 is covered by the insulating protection layer 130. That is to say, the insulating protection layer 130 isolates the residual metal 122 from the pins 140, so as to avoid the problem of short circuit of the pins 140 caused by the residual metal 122, ensure the normal operation of the produced display panel, and improve the production yield of the product.

In some embodiments, the insulating protection layer 130 is an insulating protection film. The insulating protective film extends from the non-display area 100b to the bottom surface 120c of the binding groove 100c, that is, the insulating protective film covers the surface of the transition area 121, and simultaneously, the insulating protective film also covers a local area of the bottom surface 120c of the binding groove 100c, so as to ensure that the joint of the transition area 121 and the bottom surface 120c of the binding groove 100c is covered by the insulating protective film, and the residual metal 122 is prevented from being exposed.

Example two

Referring to fig. 1 to fig. 3, a display panel is provided in the present embodiment. The present embodiment is an improvement on the above first embodiment, and compared with the above first embodiment, the difference is that:

it is understood that after the formation of the bonding groove 100c, the subsequent film layer is exposed, developed, and etched. Due to the existence of the transition region 121 between the binding groove 100c and the non-display region 100b, the photoresist may be gathered to a low-profile place, and thus the existence of the transition region 121 may cause the photoresist to be gathered at the junction of the transition region 121 and the binding groove 100c, which may easily cause insufficient development at the junction, and may further cause the metal 122 to remain after etching.

Thus, in order to further reduce the metal 122 residue, the present embodiment is directed to reducing photoresist agglomeration.

Referring to fig. 1, fig. 2 and fig. 3, in the present embodiment, the transition region 121 is configured as a slope 1210, and the slope 1210 gradually increases along the height from the binding groove 100c to the non-display region 100 b. That is, the slope 1210 gradually increases in height from the bottom surface 120c of the binding groove 100c to the surface 120b of the body 100.

The slope 1210 enables transition between the binding groove 100c and the non-display area 100b to be more gradual, so that the gathering effect of the photoresist is weakened, the photoresist is uniformly distributed between the transition area 121 and the bottom surface 120c of the binding groove 100c, development is sufficient, and metal 122 residue is reduced after etching.

The formation of the slope 1210 may be realized by an HTM (half tone mask).

Further, the slope surface of the slope 1210 is an inclined plane, and an included angle between the slope surface of the slope 1210 and the bottom surface 120c of the binding groove 100c is an obtuse angle.

In some embodiments, the slope of the ramp 1210 forms an angle greater than 110 ° with the bottom surface 120c of the binding slot 100 c.

In other embodiments, the angle between the slope surface of the slope 1210 and the bottom surface 120c of the binding groove 100c is greater than 120 ° and less than 170 °.

In still other embodiments, the angle between the slope of the slope 1210 and the bottom surface 120c of the binding groove 100c may be one of 125 °, 134 °, 140 °, 145 °, 148 °, 152 °, 159 °, 165 °, and 168 °, and it should be understood that the above description is only illustrative and not intended to limit the scope of the present application.

In this embodiment, the slope surface of the slope 1210 is covered with an insulating protection layer 130.

In some embodiments, the insulating protection layer 130 is an insulating protection film. Wherein the insulating protective film extends from the non-display area 100b to the bottom surface 120c of the binding groove 100 c. The insulating protective film is arranged to cover the residual metal 122, and the residual metal 122 is isolated from the pins 140, so that the problem that the pins 140 are short-circuited due to the residual metal 122 is avoided, the normal work of the produced display panel is ensured, and the production yield of the product is improved.

EXAMPLE III

Referring to fig. 1 to 4, a display panel is provided in the present embodiment. The present embodiment is an improvement on the basis of the second embodiment, and compared with the second embodiment, the present embodiment is characterized in that:

referring to fig. 1, fig. 2 and fig. 4, in the present embodiment, the transition region 121 is configured as a slope 1210, and the height of the slope 1210 gradually increases from the binding groove 100c to the non-display region 100 b. Wherein, the sloping surface of slope 1210 is arc curved surface shape, and the sloping surface of slope 1210 is covered with insulating protective layer 130. Optionally, the insulating protection layer 130 is an insulating protection film.

Further, the slope of the slope 1210 is concave toward the inside of the membrane layer group 120, and the bottom of the slope is in tangential transition or smooth transition with the bottom surface 120c of the binding groove 100 c.

The slope surface of the slope 1210 is set to be in an arc-shaped curved surface shape, so that the transition between the binding groove 100c and the non-display area 100b is more gradual, the gathering effect of the light resistor is weakened, the light resistor is uniformly distributed between the transition area 121 and the bottom surface 120c of the binding groove 100c, the development is sufficient, and the metal 122 residue is reduced after etching.

Example four

Referring to fig. 1 to 5, a display panel is provided in the present embodiment. The present embodiment is an improvement on the basis of the second embodiment, and compared with the second embodiment, the present embodiment is characterized in that:

referring to fig. 1, fig. 2 and fig. 5, in the present embodiment, the transition region 121 is configured as a slope 1210, and the height of the slope 1210 gradually increases from the binding groove 100c to the non-display region 100 b. Wherein, the sloping surface of slope 1210 is continuous wave shape, covers on the sloping surface of slope 1210 and is covered with insulating protective layer 130. Optionally, the insulating protection layer 130 is an insulating protection film.

The slope surface of the slope 1210 is set to be in a continuous wave shape, so that the transition between the binding groove 100c and the non-display area 100b is more gradual, the gathering points of a plurality of light resistors are formed, the gathering amount of the light resistors of each gathering point is small, the gathering amount of the light resistors is dispersed, the gathering amount of the light resistors between the transition area 121 and the bottom surface 120c of the binding groove 100c is greatly reduced, the development is sufficient, the residue of the light resistors is reduced, and the metal 122 residue is reduced after etching.

EXAMPLE five

Referring to fig. 1 to 6, a display panel is provided in the present embodiment. The present embodiment is an improvement on the basis of the second embodiment, and compared with the second embodiment, the present embodiment is characterized in that:

referring to fig. 1, fig. 2 and fig. 6, in the present embodiment, the transition region 121 is configured as a slope 1210, and the height of the slope 1210 gradually increases from the binding groove 100c to the non-display region 100 b. Wherein, the slope surface of the slope 1210 is provided with a step. The slope of the ramp 1210 is covered with an insulating protective layer 130. Optionally, the insulating protection layer 130 is an insulating protection film.

In some embodiments, the number of the steps is at least one, and when the slope surface of the slope 1210 is provided with one step, there are two accumulation points of the photoresist, wherein one accumulation point is located on the mesa surface of the step, and the other accumulation point is located at the connection position of the slope 1210 and the bottom surface 120c of the binding groove 100 c. When the slope of the ramp 1210 is provided with two steps, the number of the gathering points is increased by one, and so on.

In other embodiments, the number of steps may be multiple.

In this embodiment, the slope surface of the slope 1210 is provided with steps, and then the number of the collection points is increased by the steps, and then the collection amount of the light resistance of each collection point is small, so that the collection amount of the light resistance between the transition area 121 and the bottom surface 120c of the binding groove 100c is greatly reduced, and further the development is sufficient, the residue of the light resistance is reduced, and further the metal 122 residue is reduced after the etching.

EXAMPLE six

Referring to fig. 1 to 6, a display device provided in the present embodiment includes an installation frame and a display panel provided in any one of the embodiments.

The display panel sets up in the installing frame, and the installing frame is used for providing the support for display panel, simultaneously, still is used for installing supporting circuit board and some electronic component in the installing frame.

The display device provided by the embodiment employs the display panel provided by any one of the above embodiments, and the production yield of the display device is improved on the premise of ensuring the normal work of the display panel.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A display panel is characterized by comprising a body, wherein the body is provided with a display area, a non-display area and a binding groove arranged in the non-display area;

the non-display area is distributed along the periphery of the display area;

and an insulating protective layer covers the surface of the transition region.

2. The display panel according to claim 1, wherein the transition region is a slope, and the slope gradually increases along the binding groove to the non-display region.

3. The display panel according to claim 2, wherein the slope of the slope is curved.

4. The display panel of claim 2, wherein the slope of the ramp is in the shape of a continuous wave.

5. The display panel according to claim 2, wherein a step is provided on a slope surface of the slope.

6. The display panel according to claim 5, wherein the number of the steps is plural.

7. The display panel according to claim 1, wherein the insulating protective layer is an insulating protective film.

8. The display panel according to claim 1, wherein the insulating protective layer extends from the non-display region to a bottom surface of the binding groove.

9. The display panel according to any one of claims 1 to 8, wherein the body includes a substrate layer and a film layer group covering the substrate layer, and the bonding groove is formed by recessing the film layer group toward the substrate layer.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.