Display substrate and display device
By setting silver glue dots in the openings in the display area, the cutting complexity and cost increase caused by ear holes in traditional electronic paper products are solved, and narrow frame design and cost reduction are achieved.
Patent Information
- Application Number
- CN202422694997.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-05
AI Technical Summary
When the display area of traditional electronic paper products adopts a regular quadrilateral design, the setting of silver glue dots requires the reserve of ear holes on the electronic paper film, resulting in complex cutting process, reducing the number of cuts of the electronic paper film and increasing material cost.
Set open holes in the display area, set the silver glue dots in the opening, so that the electronic paper film adopts a regular quadrilateral design, avoiding additional ear holes, thereby achieving a narrow frame design.
By setting open holes in the display area, a narrow frame design is realized, which improves the utilization rate of the substrate and the number of electronic paper films, and reduces manufacturing costs.
Smart Images
Figure CN223244939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of display, and in particular to a display substrate and a display device. Background Art
[0002] For e-paper products, the display area in the traditional back panel adopts a regular quadrilateral design, and the setting of the silver glue dots requires reserving an ear hole on the e-paper film. The existence of the ear hole causes the shape of the e-paper film to be an irregular shape, which makes the cutting process of the e-paper film more complicated and causes the number of cuts of the e-paper film to decrease, thereby increasing the material cost of the e-paper film. Utility Model Content
[0003] The purpose of the present application is to provide a display substrate and a display device with a narrow frame.
[0004] The present application discloses a display substrate, which includes a display area and a non-display area surrounding the display area;
[0005] The display substrate in the display area includes:
[0006] substrate;
[0007] A driving circuit layer is located on one side of the substrate;
[0008] a first electrode layer, located on a side of the driving circuit layer away from the substrate;
[0009] an electronic paper film, located on a side of the first electrode layer away from the driving circuit layer;
[0010] a second electrode layer, located on a side of the electronic paper film away from the first electrode layer;
[0011] The display area is provided with an opening, and silver glue dots are provided in the opening, and the silver glue dots connect the second electrode layer and the driving circuit layer.
[0012] Optionally, the opening is arranged at an edge of the display area.
[0013] Optionally, the display area includes a main display area and a frame display area surrounding the main display area; and the opening is arranged at an edge of the main display area.
[0014] Optionally, the opening is located on a side of the frame display area close to the main display area.
[0015] Optionally, the frame display area is in contact with an edge of the opening, and the opening is located on a side of the frame display area away from the main display area.
[0016] Optionally, the distance between the edge of the opening and the silver glue dot is greater than or equal to 0.5 mm.
[0017] Optionally, the display area includes:
[0018] Data signal lines, the data signal lines extending along a first direction, and a plurality of the data signal lines arranged along a second direction;
[0019] a gate drive signal line, wherein the gate drive signal line extends along the second direction, and a plurality of the gate drive signal lines are arranged along the first direction;
[0020] The data signal line and the gate drive signal line near the silver glue point are arranged around the silver glue point.
[0021] Optionally, a minimum distance between the data signal line and the gate drive signal line and the silver glue dot is greater than or equal to 50 microns.
[0022] Optionally, the display area includes a plurality of pixels arranged in an array, and the edge of the opening is set along the boundary between the pixels.
[0023] Optionally, the driving circuit layer includes:
[0024] a gate metal layer, located on one side of the substrate;
[0025] a first insulating layer, located on a side of the gate metal layer away from the substrate;
[0026] a semiconductor layer, located on a side of the first insulating layer away from the gate metal layer;
[0027] a source / drain metal layer, located on a side of the first insulating layer away from the gate metal layer, wherein a portion of the source / drain metal layer is connected to the first electrode layer;
[0028] a second insulating layer, located on a side of the source / drain metal layer away from the first insulating layer;
[0029] The gate metal layer or the source / drain metal layer is provided with a common electrode line, and the silver glue dots connect the second electrode layer and the common electrode line.
[0030] Optionally, the display area is provided with a plurality of the openings.
[0031] The present application also discloses a display device, which includes the above-mentioned display substrate.
[0032] Compared with related technologies, this application provides openings in the display area and places silver glue dots inside the openings, allowing the electronic paper film to adopt a regular quadrilateral design without the need for additional ear holes, thereby reducing the frame and achieving a narrow frame design. At the same time, it improves the utilization rate of the substrate and the number of electronic paper films cut, thereby reducing costs.
[0033] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.
[0035] Figure 1 This is a schematic diagram showing the planar structure of the substrate of this application.
[0036] Figure 2 This is a schematic diagram showing the hierarchical structure of a substrate for this application.
[0037] Figure 3 In one embodiment Figure 1 A magnified schematic diagram of area A in the middle.
[0038] Figure 4 For the Figure 3 Schematic diagram of a partial cross section along line BB.
[0039] Figure 5 In one embodiment Figure 1 A magnified schematic diagram of area A in the middle.
[0040] Figure 6 In one embodiment Figure 1 A magnified schematic diagram of area A in the middle.
[0041] Figure 7 Schematic diagram of several display substrates with openings arranged at different positions in this application.
[0042] Figure 8 Schematic diagram of several display substrates provided with openings of different shapes according to the present application. DETAILED DESCRIPTION
[0043] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0044] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.
[0045] like Figure 1 and Figure 2 As shown, the present application provides a display substrate, which includes a display area 100 and a non-display area 200 surrounding the display area 100 in the horizontal direction. Within the display area 100, the display substrate includes a base 10, a driving circuit layer 20, a first electrode layer 30, an electronic paper film 40, and a second electrode layer 50 in the thickness direction.
[0046] The driving circuit layer 20 is located on one side of the substrate, the first electrode layer 30 is located on the side of the driving circuit layer 20 away from the substrate 10, the electronic paper film 40 is located on the side of the first electrode layer 30 away from the driving circuit layer 20, and the second electrode layer 50 is located on the side of the electronic paper film 40 away from the first electrode layer 30.
[0047] The display area 100 is provided with an opening 130 . A silver glue dot 140 is provided in the opening 130 . The silver glue dot 140 connects the second electrode layer 50 and the driving circuit layer 20 .
[0048] This application provides an opening in the display area and places silver glue dots inside the opening, allowing the electronic paper film to adopt a regular quadrilateral design without the need for additional ear holes, thereby reducing the frame and achieving a narrow frame design. At the same time, it improves the utilization rate of the substrate and the number of electronic paper film cuts, thereby reducing costs.
[0049] The following will describe in detail the various embodiments of the present application that are consistent with the above-mentioned creative concepts.
[0050] like Figure 1 As shown, the embodiment of the present application discloses a display substrate, which includes a display area 100 and a non-display area 200 surrounding the display area 100 .
[0051] The display substrate is provided with a plurality of data signal lines 300, gate drive signal lines 400, and common electrode lines 500 within the display area 100. The data signal lines 300 extend along a first direction F1, and a plurality of data signal lines 300 are arranged along a second direction F2. The gate drive signal lines 400 extend along a second direction F2, and a plurality of gate drive signal lines 400 are arranged along the first direction F1. The common electrode lines 500 extend along the first direction F1, and a plurality of common electrode lines 500 are arranged along the second direction F2, or the common electrode lines 500 extend along the second direction F2, and a plurality of common electrode lines 500 are arranged along the first direction F1. The first direction F1 may be the length direction of the display panel, and the second direction F2 may be the width direction of the display panel.
[0052] like Figure 2 As shown, within the display area 100, the display substrate includes, in its thickness direction, a base 10, a driving circuit layer 20, a first electrode layer 30, an electronic paper film 40, and a second electrode layer 50. The driving circuit layer 20 is located on one side of the base, the first electrode layer 30 is located on the side of the driving circuit layer 20 away from the base 10, the electronic paper film 40 is located on the side of the first electrode layer 30 away from the driving circuit layer 20, and the second electrode layer 50 is located on the side of the electronic paper film 40 away from the first electrode layer 30.
[0053] In some embodiments, the substrate 10 includes a rigid substrate or a flexible substrate. The material of the flexible substrate may include one or more of polyimide, polyethylene terephthalate, polycarbonate, and organic resin materials. The organic resin material may include epoxy resin, triazine, silicone resin, or polyimide.
[0054] In some embodiments, the substrate 10 includes a rigid substrate. The rigid substrate includes any one of a glass substrate, a quartz substrate, a sapphire substrate, a ceramic substrate, etc., or a semiconductor substrate such as a single crystal semiconductor substrate or a polycrystalline semiconductor substrate made of silicon or silicon carbide, a compound semiconductor substrate such as silicon germanium, or an SOI (Silicon On Insulator) substrate.
[0055] In some embodiments, the substrate 10 includes both a rigid substrate and a flexible substrate, wherein the flexible substrate is disposed between the rigid substrate and the driving circuit layer 20. Furthermore, after or during device fabrication, the rigid substrate can be removed to provide the entire device with increased flexibility. The rigid substrate primarily serves to support the flexible substrate and driving circuit layer 20 during the fabrication process.
[0056] The first electrode layer 30 and the second electrode layer 50 may be made of metal materials such as aluminum, copper, or silver, or transparent conductive materials such as indium tin oxide (ITO) and indium zinc oxide.
[0057] The first electrode layer 30 is electrically connected to the driving circuit layer 20 . The display area 100 is provided with an opening 130 . A silver glue dot 140 is provided in the opening 130 . The silver glue dot 140 electrically connects the second electrode layer 50 and the driving circuit layer 20 .
[0058] The electronic paper film 40 comprises multiple microstructures, such as microcups or microcapsules. Each microstructure contains a transparent liquid and a plurality of charged particles. For example, these may include charged white particles and charged black particles. The white particles can be negatively charged and the black particles can be positively charged, or the black particles can be negatively charged and the white particles positively charged. By applying a voltage to the first electrode layer 30 and the second electrode layer 50, the electric field formed between them causes the charged particles in each microstructure to move, thereby controlling the color presented by each microstructure and enabling the display substrate to display an image.
[0059] In an alternative embodiment, if Figure 1 and Figure 7 As shown, the opening 130 is provided at the edge of the display area 100. Specifically, the display area 100 may be rectangular, and the edge of the opening 130 may be tangent to one side of the rectangular display area 100, or the edge of the opening 130 may be tangent to both sides of the rectangular display area 100. The opening 130 may be located at the upper, lower, and both side edges of the rectangular display area 100, or at the four corners of the rectangular display area 100.
[0060] In an alternative embodiment, if Figure 1 and Figure 3 As shown, Figure 3 for Figure 1 An enlarged schematic diagram of area A in the middle. The display area 100 includes a main display area 110 and a border display area 120 surrounding the main display area 110. The border display area 120 is disposed between the main display area 110 and the non-display area 200. The voltage of the first electrode layer 30 corresponding to the border display area 120 and the voltage of the first electrode layer 30 corresponding to the main display area 110 can be set independently. That is, when the voltage of the first electrode layer 30 corresponding to the main display area 110 is a, the voltage of the first electrode layer 30 corresponding to the border display area 120 can be b, and b and a may not be equal.
[0061] like Figure 3 and Figure 6 As shown, the opening 130 can be disposed at the edge of the main display area 110 .
[0062] In an alternative embodiment, if Figure 3As shown, the edge of the opening 130 can be tangent to the junction of the main display area 110 and the frame display area 120. For example, the main display area 110 can be rectangular, and the frame display area 120 can be a rectangular ring that fits the periphery of the main display area 110. The edge of the opening 130 can be tangent to one side of the main display area 110, or the edge of the opening 130 can be tangent to both sides of the main display area 110. That is, the opening 130 is located on the side of the frame display area 120 that is closest to the main display area 110.
[0063] In an alternative embodiment, if Figure 6 As shown, Figure 6 for Figure 1 An enlarged schematic diagram of area A in the center. After creating a hole at the edge of the main display area 110, the edge of the frame display area 120 can be aligned with the edge of the hole 130. This allows a portion of the edge of the hole 130 to overlap with the outer edge of the frame display area 120. This means that the hole 130 is located on the side of the frame display area 120 away from the main display area 110.
[0064] In an alternative embodiment, if Figure 3 As shown, the distance between the edge of the opening 130 and the silver glue point 140 is greater than or equal to 0.5 mm. When this condition is met, the shape of the opening 130 can be set according to actual needs. Figure 8 As shown, the opening 130 can be a square hole, a triangular hole, a semicircular hole, a circular hole, or other special-shaped holes. In the embodiment of the present application, the opening 130 is approximately circular, with a radius of 2.5 mm, and the silver glue dot 140 is cylindrical, with a radius of 1 mm in the cylindrical cross section.
[0065] In an alternative embodiment, if Figure 3 As shown, when the data signal line 300 and / or the gate drive signal line 400 pass through the opening 130, the data signal line 300 and the gate drive signal line 400 near the silver glue dot 140 are arranged around the silver glue dot 140, and the routing shape of the data signal line 300 and the gate drive signal line 400 adapts to the outer edge of the silver glue dot 140. During the winding process, the minimum distance between the data signal line 300 and the gate drive signal line 400 and the silver glue dot 140 is greater than or equal to 50 microns. This prevents the data signal line 300 and / or the gate drive signal line 400 from shorting when the silver glue dot 140 is installed.
[0066] In an alternative embodiment, if Figure 5 As shown, Figure 5 for Figure 1An enlarged schematic diagram of area A in the center. Display area 100 includes a plurality of pixels 150 arranged in an array. The edges of openings 130 are arranged along the boundaries between pixels 150. That is, when openings 130 are provided, pixels 150 are removed along the edges of pixels 150. Both the removed pixels 150 and the remaining pixels 150 are complete pixels 150. This reduces the loss of pixels 150 when providing openings 130.
[0067] In an alternative embodiment, if Figure 1 and Figure 2 The driving circuit layer 20 shown includes a gate metal layer 21, a first insulating layer 22, a semiconductor layer 23, a source / drain metal layer 24, and a second insulating layer 25. The gate metal layer 21 is located on one side of the substrate 10, the first insulating layer 22 is located on the side of the gate metal layer 21 away from the substrate 10, the semiconductor layer 23 is located on the side of the first insulating layer 22 away from the gate metal layer 21, the source / drain metal layer 24 is located on the side of the first insulating layer 22 away from the gate metal layer 21, and a portion of the source / drain metal layer 24 is connected to the first electrode layer 30. The second insulating layer 25 is located on the side of the source / drain metal layer 24 away from the first insulating layer 22. The display substrate includes common electrode lines 500, which can optionally be provided on the gate metal layer 21 or the source / drain metal layer 24. Silver glue dots 140 connect the second electrode layer 50 to the common electrode lines 400.
[0068] In an alternative embodiment, if Figure 4 As shown, Figure 4 For the Figure 3 Partial cross-sectional diagram of line BB. The data signal line 300 is arranged in the source and drain metal layer 24, and the gate drive signal line 400 is arranged in the gate metal layer 21. The line width and spacing of the data signal line 300 and the gate drive signal line 400 can be set according to requirements. In the embodiment of the present application, the line width of the data signal line 300 is 5.2 microns, and the spacing between adjacent data signal lines 300 is 5 microns. The line width of the gate drive signal line 400 is 4.2 microns, and the spacing between adjacent gate drive signal lines 400 is 5 microns. In the winding section, the data signal line 300 and the gate drive signal line 400 are displayed as much as possible without overlapping areas in the thickness direction of the substrate, so as to reduce the coupling interference between the data signal line 300 and the gate drive signal line 400.
[0069] In an optional embodiment, the display area 100 is provided with a plurality of openings 130 , and the plurality of openings 130 can be provided together or independently according to the manner in any of the above embodiments.
[0070] While maintaining the display substrate size and resolution, this application can narrow the bottom bezel and reduce the size of the drive circuit layer. This increases the total number of e-paper films cut by 4.8% and substrate utilization by 1.2%, thereby reducing manufacturing costs.
[0071] The present application also provides a display device, which includes the above-mentioned display substrate.
[0072] In one embodiment, the display device further includes a housing, and the display panel is disposed in the housing.
[0073] The display device provided in the embodiments of the present application may be, for example, a mobile phone, a tablet computer, a television, a laptop computer, an in-vehicle device, or any other device with a display function.
[0074] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.
Claims
1. A display substrate, characterized in that: The display substrate includes a display area and a non-display area surrounding the display area; The display substrate in the display area includes: substrate; A driving circuit layer is located on one side of the substrate; a first electrode layer, located on a side of the driving circuit layer away from the substrate; an electronic paper film, located on a side of the first electrode layer away from the driving circuit layer; a second electrode layer, located on a side of the electronic paper film away from the first electrode layer; The display area is provided with an opening, and silver glue dots are provided in the opening, and the silver glue dots connect the second electrode layer and the driving circuit layer.
2. The display substrate according to claim 1, wherein: The opening is arranged at the edge of the display area.
3. The display substrate according to claim 2, wherein: The display area includes a main display area and a frame display area surrounding the main display area; the opening is arranged at the edge of the main display area.
4. The display substrate according to claim 3, wherein: The opening is located on a side of the frame display area close to the main display area.
5. The display substrate according to claim 3, wherein: The frame display area is in contact with the edge of the opening, and the opening is located on a side of the frame display area away from the main display area.
6. The display substrate according to claim 1, wherein: The distance between the edge of the opening and the silver glue point is greater than or equal to 0.5 mm.
7. The display substrate according to claim 1, wherein: The display area includes: Data signal lines, the data signal lines extending along a first direction, and a plurality of the data signal lines arranged along a second direction; a gate drive signal line, wherein the gate drive signal line extends along the second direction, and a plurality of the gate drive signal lines are arranged along the first direction; The data signal line and the gate drive signal line near the silver glue point are arranged around the silver glue point.
8. The display substrate according to claim 7, wherein: The minimum distance between the data signal line and the gate drive signal line and the silver glue point is greater than or equal to 50 microns.
9. The display substrate according to claim 1, wherein: The display area includes a plurality of pixels arranged in an array, and the edge of the opening is set along the boundary between the pixels.
10. The display substrate according to claim 1, wherein The driving circuit layer includes: a gate metal layer, located on one side of the substrate; a first insulating layer, located on a side of the gate metal layer away from the substrate; a semiconductor layer, located on a side of the first insulating layer away from the gate metal layer; a source / drain metal layer, located on a side of the first insulating layer away from the gate metal layer, wherein a portion of the source / drain metal layer is connected to the first electrode layer; a second insulating layer, located on a side of the source / drain metal layer away from the first insulating layer; The gate metal layer or the source / drain metal layer is provided with a common electrode line, and the silver glue dots connect the second electrode layer and the common electrode line.
11. The display substrate according to claim 1, wherein The display area is provided with a plurality of openings.
12. A display device, characterized in that: The display device comprises the display substrate according to any one of claims 1 to 11.