CN217468437U - OLED segment code display panel and display device - Google Patents
OLED segment code display panel and display device Download PDFInfo
- Publication number
- CN217468437U CN217468437U CN202221471784.2U CN202221471784U CN217468437U CN 217468437 U CN217468437 U CN 217468437U CN 202221471784 U CN202221471784 U CN 202221471784U CN 217468437 U CN217468437 U CN 217468437U
- Authority
- CN
- China
- Prior art keywords
- substrate
- material layer
- cathode material
- region
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The utility model provides a OLED section code display panel and display device, wherein OLED section code display panel includes: a substrate including a display region and a non-display region surrounding the display region, the non-display region including a landing region and an edge region surrounding the landing region; a cathode material layer on the substrate; a cathode lead located at the lap joint region and between the substrate and the cathode material layer, electrically connecting the cathode material layer; the insulating layer is positioned in the edge region and between the substrate and the cathode material layer, the insulating layer in the edge region also extends to the lap joint region and between the substrate and the cathode material layer in the lap joint region, and the cross-sectional area of the insulating layer parallel to the substrate is gradually reduced from the substrate to the cathode material layer in the direction perpendicular to the substrate. The overlapping effect of the cathode material layer of the overlapping area of the OLED segment code display panel is good.
Description
Technical Field
The utility model relates to a show technical field, concretely relates to OLED segment code display panel and display device.
Background
The OLED segment code display panel is a novel matrix type laminated display light-emitting device, and the display is driven to emit light through an external electric field. With the development of the OLED, the application field and the application scene are more and more, wherein the OLED segment code display panel has superior display effect compared with the segment code display screen of the TFT, the LED or the backlight, and can be made into a transparent display screen, which is more and more popular with users, and the demand is more and more. In the prior art, if the OLED segment code display panel is to be made into a transparent screen, the cathode material layer needs to be made of a transparent material, and the used dielectric materials such as photoresist also need to be made of a transparent material. However, due to the property of the transparent material photoresist reserved in the exposure area, the cathode material layer of the overlapping area may be suspended due to diffusion after the dielectric material made of the transparent material photoresist is subjected to photolithography, and then a fault occurs, so that the overlapping effect of the cathode material layer of the overlapping area is poor, and the display of the OLED segment code display panel is abnormal.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art the overlap joint area among the OLED section sign indicating number display panel's negative pole material layer can appear the fault and make the negative pole material layer of overlap joint area can't play the overlap joint effect and cause OLED section sign indicating number display panel to show unusual problem.
In order to solve the technical problem, the utility model provides a OLED segment code display panel, include: a substrate including a display region and a non-display region surrounding the display region, the non-display region including a landing region and an edge region surrounding the landing region; a cathode material layer on the substrate; a cathode lead located at the lap joint region and between the substrate and the cathode material layer, electrically connecting the cathode material layer; the insulating layer is positioned in the edge region and between the substrate and the cathode material layer, the insulating layer in the edge region also extends to the lap joint region and between the substrate and the cathode material layer in the lap joint region, and the cross-sectional area of the insulating layer parallel to the substrate is gradually reduced from the substrate to the cathode material layer in the direction perpendicular to the substrate.
Optionally, the insulating layer is a positive photoresist layer.
Optionally, the material of the cathode material layer includes Mg or Ag, and the thickness of the cathode material layer is 10nm to 50 nm.
Optionally, the method further includes: and the organic material layer is positioned in the display area and positioned on one side of the cathode material layer facing the substrate.
Optionally, the display area includes a pattern layer, the pattern layer is located between the organic material layer and the substrate, the pattern layer includes a plurality of pattern areas, the pattern areas are separated from each other, and the pattern layer is a negative photoresist layer.
Optionally, the graphic layer and the insulating layer are separated from each other.
Optionally, the method further includes: the anode lead group is positioned between the substrate and the pattern layer and comprises a plurality of anode leads, and the anode leads are electrically connected with a driving chip.
Optionally, the anode lead includes a first anode lead and a second anode lead, and the second anode lead is located on a side surface of the first anode lead facing away from the substrate.
The utility model also provides a display device, include the utility model discloses a OLED section code display panel.
The technical scheme of the utility model, have following advantage:
the utility model discloses technical scheme provides a OLED section sign indicating number display panel, the insulating layer is located the marginal zone just is located the base plate with between the cathode material layer, the insulating layer of marginal zone still extends to the overlap joint district just is located in the overlap joint district the base plate with between the cathode material layer, the insulating layer is on a parallel with the cross sectional area of base plate is at the perpendicular to in the direction of base plate certainly the base plate extremely the cathode material layer steadilys decrease gradually, consequently the cathode material layer of overlap joint district can along the edge of the insulating layer of overlap joint district with the overlap joint is carried out to the cathode lead wire, the insulating layer is right the cathode material layer has played fine supporting role, can avoid the fault appears in the cathode material layer of overlap joint district department, consequently the overlap joint of the cathode material layer of OLED section sign indicating number display panel's overlap joint district is effectual.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a partial cross section of an OLED segment code display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a partial cross section of an OLED segment code display panel in the prior art.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The present embodiment provides an OLED segment code display panel, referring to fig. 1, including:
a substrate 100, the substrate 100 including a display region and a non-display region surrounding the display region, the non-display region including a lap region D and an edge region B surrounding the lap region D;
a cathode material layer 101 on the substrate 100;
a cathode lead (not shown) located at the bonding region D and between the substrate 100 and the cathode material layer 101, electrically connecting the cathode material layer 101;
the insulating layer 102 is located in the edge region B and between the substrate 100 and the cathode material layer 101, the insulating layer 102 in the edge region B further extends to the lap region D and is located between the substrate 100 and the cathode material layer 101 in the lap region D, and a cross-sectional area of the insulating layer 102 parallel to the substrate 100 is gradually decreased from the substrate 100 to the cathode material layer 101 in a direction perpendicular to the substrate 100.
In the OLED segment code display panel provided in this embodiment, the insulating layer 102 is located in the edge region B and between the substrate 100 and the cathode material layer 101, the insulating layer 102 of the edge region B also extends to the landing region D and is located between the substrate 100 and the cathode material layer 101 in the landing region D, the cross-sectional area of the insulating layer 102 parallel to the substrate 100 gradually decreases from the substrate 100 to the cathode material layer 101 in a direction perpendicular to the substrate 100, the cathode material layer 101 of the lap zone D may lap the cathode lead along the edge of the insulating layer 102 of the lap zone D, the insulating layer 102 provides a good support for the cathode material layer 101, the cathode material layer 101 in the overlapping region D can be prevented from being broken, so that the overlapping effect of the cathode material layer in the overlapping region of the OLED segment code display panel is good.
In the present embodiment, the substrate 100 is a glass substrate. In other embodiments, the substrate is a flexible substrate.
In one embodiment, the insulating layer is a positive photoresist layer.
Referring to fig. 2, an insulating layer 102 ' is located at an edge region B ' and between a substrate 100 ' and a cathode material layer 101 ', and since the insulating layer 102 ' in the prior art is a negative photoresist layer, a cross-sectional area of the insulating layer 102 ' parallel to the substrate 100 ' gradually increases from the substrate 100 ' to the cathode material layer 101 ' in a direction perpendicular to the substrate 100 ', so that the cathode material layer at a bonding region D ' may be easily broken due to no structural support, thereby causing a poor bonding effect. Therefore, the insulating layer in this embodiment is a positive photoresist layer.
In one embodiment, the material of the cathode material layer comprises Mg or Ag, and the thickness of the cathode material layer is 10nm to 50nm, such as 30 nm; if the thickness of the cathode material layer is less than 10nm, the thickness of the cathode material layer is too thin, and the cathode material layer may be broken; if the thickness of the cathode material layer is greater than 50nm, which results in an excessively thick cathode material layer, the degree of increasing the transmittance of the cathode material layer is reduced.
In one embodiment, the OLED segment code display panel further includes: and the organic material layer is positioned in the display area and positioned on one side of the cathode material layer facing the substrate. The organic material layer comprises a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and/or an electron injection layer which are sequentially stacked.
In one embodiment, the display area comprises a pattern layer, the pattern layer is located between the organic material layer and the substrate, the pattern layer comprises a plurality of pattern areas, the pattern areas are separated from each other, and the pattern layer is a negative photoresist layer. The pattern layer is an etched fixed pattern, for example, a seven-segment pattern for displaying numbers or letters, and may also include other patterns.
In one embodiment, the pattern layer and the insulating layer are separated from each other.
In one embodiment, the OLED segment code display panel further includes: the anode lead group is positioned between the substrate and the pattern layer and comprises a plurality of anode leads, and the anode leads are electrically connected with a driving chip. The anode lead is electrically connected with the driving chip and is also positioned in the edge area, and the insulating layer can protect the anode lead in the edge area.
In one embodiment, the anode lead comprises a first anode lead and a second anode lead, the second anode lead is located on a side surface of the first anode lead, which faces away from the substrate, the first anode lead is an ITO lead, the second anode lead is an MAM lead, and the second anode lead is used for reducing a resistance value of the anode lead.
The manufacturing method of the OLED segment code display panel provided in this embodiment includes: providing a substrate, wherein the substrate comprises a display area and a non-display area surrounding the display area; forming an anode lead group on the substrate, the anode lead group including a plurality of anode leads, the forming the anode leads including: forming a first anode lead on the substrate, wherein the process for forming the first anode lead comprises an etching process, for example, etching by using a photomask; forming a second anode lead on one side of the first anode lead, which is opposite to the substrate, wherein the process for forming the second anode lead comprises an etching process, for example, etching by using a photomask; and forming a pattern layer in the display area, wherein the pattern layer is a negative photoresist layer, the process for forming the pattern layer comprises an etching process, an insulating layer is formed in the non-display area, the insulating layer is a positive photoresist layer, and the process for forming the insulating layer comprises the etching process.
In the manufacturing process of the OLED segment code display panel provided in this embodiment, after the display region is formed into a pattern, an insulating layer is formed in the non-display region.
Correspondingly, the utility model discloses still another embodiment provides a display device, including the OLED segment code display panel of the preceding embodiment, refer to fig. 1, include:
a substrate 100, the substrate 100 including a display region and a non-display region surrounding the display region, the non-display region including a lap region D and an edge region B surrounding the lap region D;
a cathode material layer 101 on the substrate 100;
a cathode lead (not shown) located in the bonding region D and between the substrate 100 and the cathode material layer 101, and electrically connected to the cathode material layer 101;
the insulating layer 102 is located in the edge region B and between the substrate 100 and the cathode material layer 101, the insulating layer 102 in the edge region B further extends to the lap region D and is located between the substrate 100 and the cathode material layer 101 in the lap region D, and a cross-sectional area of the insulating layer 102 parallel to the substrate 100 is gradually decreased from the substrate 100 to the cathode material layer 101 in a direction perpendicular to the substrate 100.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. An OLED segment code display panel, comprising:
a substrate including a display region and a non-display region surrounding the display region, the non-display region including a landing region and an edge region surrounding the landing region;
a cathode material layer on the substrate;
a cathode lead located at the lap joint region and between the substrate and the cathode material layer, electrically connecting the cathode material layer;
the insulating layer is positioned in the edge region and between the substrate and the cathode material layer, the insulating layer in the edge region also extends to the lap joint region and between the substrate and the cathode material layer in the lap joint region, and the cross-sectional area of the insulating layer parallel to the substrate is gradually reduced from the substrate to the cathode material layer in the direction perpendicular to the substrate.
2. The OLED segment code display panel of claim 1, wherein the insulating layer is a positive photoresist layer.
3. The OLED segment code display panel of claim 1, wherein the material of the cathode material layer comprises Mg or Ag, and the thickness of the cathode material layer is 10nm to 50 nm.
4. The OLED segment code display panel of claim 1 further comprising: and the organic material layer is positioned in the display area and positioned on one side of the cathode material layer facing the substrate.
5. The OLED segment code display panel of claim 4, wherein the display area comprises a graphic layer, the graphic layer is located between the organic material layer and the substrate, the graphic layer comprises a plurality of graphic areas, the graphic areas are separated from each other, and the graphic layer is a negative photoresist layer.
6. The OLED segment code display panel of claim 5, wherein the graphic layer and the insulating layer are separated from each other.
7. The OLED segment code display panel of claim 5, further comprising: the anode lead group is positioned between the substrate and the pattern layer and comprises a plurality of anode leads, and the anode leads are electrically connected with a driving chip.
8. The OLED segment code display panel of claim 7, wherein the anode leads comprise a first anode lead and a second anode lead, and the second anode lead is located on a side surface of the first anode lead facing away from the substrate.
9. A display device comprising the OLED segment code display panel according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221471784.2U CN217468437U (en) | 2022-06-13 | 2022-06-13 | OLED segment code display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221471784.2U CN217468437U (en) | 2022-06-13 | 2022-06-13 | OLED segment code display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468437U true CN217468437U (en) | 2022-09-20 |
Family
ID=83237942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221471784.2U Active CN217468437U (en) | 2022-06-13 | 2022-06-13 | OLED segment code display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468437U (en) |
-
2022
- 2022-06-13 CN CN202221471784.2U patent/CN217468437U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11611720B2 (en) | Display panel and electronic device | |
| CN109031779B (en) | Light emitting diode substrate, backlight module and display device | |
| US7291977B2 (en) | Organic electroluminescence display panel and method for sealing the same | |
| CN103794617B (en) | Light emitting diode display panel and manufacturing method thereof | |
| US6642542B1 (en) | Large EL panel and manufacturing method therefor | |
| CN107302016B (en) | Organic light-emitting diode display panel and manufacturing method thereof | |
| CN103293763B (en) | Liquid crystal indicator | |
| JP2006114504A (en) | Organic electroluminescence display device and its manufacturing method | |
| CN113345927B (en) | Preparation method of under-screen camera display panel and transparent display area | |
| TW202215389A (en) | Display panel and manufacturing method thereof | |
| US20240113153A1 (en) | Method for making micro-led display panel | |
| CN107741671B (en) | Display device and preparation method thereof | |
| JP5982060B2 (en) | Passive matrix drive display and tiling display | |
| JP2006330185A (en) | Electro-optical panel, sealing member, and manufacturing method of electro-optical panel | |
| US8067889B2 (en) | Stacked display medium | |
| JP4395773B2 (en) | Liquid crystal display device and manufacturing method thereof | |
| CN217468437U (en) | OLED segment code display panel and display device | |
| US20210124215A1 (en) | Backlight source manufacturing method, backlight source, and display apparatus | |
| WO2022077690A1 (en) | Support structure, flexible display panel and electronic device | |
| CN113725379A (en) | Display module and display device | |
| CN114447077A (en) | Display panel and manufacturing method thereof | |
| CN218069856U (en) | OLED segment code display panel and display device thereof | |
| CN111258128B (en) | Display panel and manufacturing method thereof | |
| CN117410239A (en) | Display panel and manufacturing method thereof | |
| WO2020174909A1 (en) | Micro-led element mounted substrate, and display device using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |