CN110097852B - Annular display panel, manufacturing method thereof and annular display device - Google Patents
Annular display panel, manufacturing method thereof and annular display device Download PDFInfo
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- CN110097852B CN110097852B CN201910538628.XA CN201910538628A CN110097852B CN 110097852 B CN110097852 B CN 110097852B CN 201910538628 A CN201910538628 A CN 201910538628A CN 110097852 B CN110097852 B CN 110097852B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
The application discloses an annular display panel, a manufacturing method thereof and an annular display device, and belongs to the technical field of display. Annular display panel has display area and two grid drive circuit regions, and two grid drive circuit regions are located the both sides of display area, and two grid drive circuit regions superpose and constitute the bonding region, and the width in bonding region is less than or equal to the width in grid drive circuit region, and the thickness in bonding region equals the thickness in display area, and annular display panel's thickness direction is perpendicular with annular display panel's axis, and annular display panel's axis is parallel with annular display panel's data line scanning direction. The narrow boundary display of the annular display panel is realized. The application is used for manufacturing the annular display panel.
Description
Technical Field
The present disclosure relates to display technologies, and in particular, to an annular display panel, a manufacturing method thereof, and an annular display device.
Background
An Organic Light-Emitting Diode (OLED) display panel has characteristics of self-luminescence, high brightness, clear display, fast response speed, wide viewing angle, low power consumption, and flexible display, and has become a dominant force in the display technology field.
The grid driving circuit (also called row driving circuit) of the OLED display panel can be divided into a single-side grid driving circuit and a double-side grid driving circuit according to the distribution mode, the OLED display panel with the double-side grid driving circuit comprises a source driving circuit (also called column driving circuit), two grid driving circuits and sub-pixel units arranged in an array mode, the sub-pixel units are located in a display area, the two grid driving circuits are located in grid driving circuit areas on two sides of the display area, each sub-pixel unit is respectively connected with the source driving circuit and the grid driving circuit close to the sub-pixel unit, and the two grid driving circuits are used for synchronously scanning the OLED display panel. When the OLED display panel is a flexible display panel, two opposite side surfaces of the OLED display panel may be bent toward the non-display surface thereof so that the two side surfaces are connected to form an annular display panel, an axis of the annular display panel is parallel to a data line scanning direction thereof, the two gate driving circuit regions are joint regions of the annular display panel, and a width of the joint region is at least a sum of widths of the two gate driving circuit regions.
However, in the ring-shaped display panel, the width of the bonding region is at least the sum of the widths of the two gate driving circuit regions, and therefore, the width of the bonding region is large, and narrow-boundary display is difficult to achieve.
Disclosure of Invention
The application provides an annular display panel and a manufacturing method thereof, and an annular display device, which are beneficial to realizing narrow boundary display, and the technical scheme is as follows:
in a first aspect, an annular display panel is provided, the annular display panel has a display area and two gate driving circuit areas, the two gate driving circuit areas are located on two sides of the display area, the two gate driving circuit areas are overlapped to form a combination area, the width of the combination area is smaller than or equal to that of the gate driving circuit area, the thickness of the combination area is equal to that of the display area, the thickness direction of the annular display panel is perpendicular to the axis of the annular display panel, and the axis of the annular display panel is parallel to the scanning direction of a data line of the annular display panel.
Optionally, the bonding region includes a first bonding surface, a second bonding surface and a third bonding surface, the second bonding surface intersects with the first bonding surface and the third bonding surface respectively, the first bonding surface and the third bonding surface both extend along a radial direction of the annular display panel, the second bonding surface extends along a circumferential direction of the annular display panel, and the gate driving circuit region is located on the second bonding surface.
Optionally, the annular display panel includes two annular display substrates which are connected in a sleeved manner, the annular display substrates are formed by connecting two side faces of a planar display substrate, and each annular display substrate is provided with a gate driving circuit region, a display region and a blank region which are sequentially distributed along a gate line scanning direction of the annular display substrate;
in the annular display panel, the grid line scanning directions of the two annular display substrates are opposite, the connection surfaces of the two annular display substrates are staggered, the grid driving circuit areas of the two annular display substrates are overlapped, and the display area of each annular display substrate is overlapped with the blank area of the other annular display substrate;
the display areas of the two annular display substrates are adjacent to form the display areas of the annular display panel, the gate drive circuit areas of the two annular display substrates form the two gate drive circuit areas of the annular display panel, the first bonding surface is the joint surface of one annular display substrate, the third bonding surface is the joint surface of the other annular display substrate, and the second bonding surface is the contact surface of the gate drive circuit areas of the two annular display substrates.
Optionally, the annular display substrate comprises: the display device comprises a substrate base plate, a sub-pixel unit, a grid driving circuit and a protective layer, wherein the sub-pixel unit and the grid driving circuit are arranged on the substrate base plate, the protective layer is positioned on one side, away from the substrate base plate, of the sub-pixel unit, the sub-pixel unit is positioned in the display area, the grid driving circuit is positioned in the grid driving circuit area, the sub-pixel unit, the grid driving circuit and the protective layer are all positioned between the substrate base plates of the two annular display base plates, and the substrate base plate of each annular display base plate is repeatedly used for a cover plate of the other annular display base plate.
Optionally, in the annular display panel, the annular display substrate located on the outer side is a bottom emission display substrate, and the annular display substrate located on the inner side is a top emission display substrate.
Optionally, the ring-shaped display panel is formed by bending two end faces of the flat display panel towards the non-display face of the flat display panel and adopting gel bonding.
Optionally, the annular display panel further has a binding region, and the annular display panel includes: the flexible circuit board is respectively bound with the binding area and the peripheral driving circuit.
Optionally, the annular display panel is a circular annular display panel.
In a second aspect, a method for manufacturing a ring-shaped display panel is provided, the method comprising:
manufacturing a flat display panel, wherein the flat display panel is provided with a display area and two grid driving circuit areas, and the two grid driving circuit areas are positioned on two sides of the display area;
bending two end surfaces of the flat display panel towards a non-display surface of the flat display panel to enable the two grid driving circuit regions to be superposed, combining the two end surfaces of the flat display panel to obtain an annular display panel, superposing the two grid driving circuit regions to form a combining region, wherein the width of the combining region is smaller than or equal to that of the grid driving circuit regions, the thickness of the combining region is equal to that of the display region, the thickness direction of the annular display panel is perpendicular to the axis of the annular display panel, and the axis of the annular display panel is parallel to the scanning direction of a data line of the annular display panel.
Optionally, the bonding region includes a first bonding surface, a second bonding surface and a third bonding surface, the second bonding surface intersects with the first bonding surface and the third bonding surface respectively, the first bonding surface and the third bonding surface both extend along the axial direction of the annular display panel, the second bonding surface extends along the circumferential direction of the annular display panel, and the gate driving circuit region is located on the second bonding surface.
Optionally, manufacturing a flat display panel, where the flat display panel has a display region and two gate driving circuit regions, where the two gate driving circuit regions are located on two sides of the display region, and the manufacturing method includes:
manufacturing two flat display substrates, wherein each flat display substrate is provided with a grid driving circuit region, a display region and a blank region which are sequentially distributed along the grid line scanning direction of the flat display substrate;
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned on the same side, the flat display panel is obtained, the scanning directions of the grid lines of the two flat display substrates are opposite in the flat display panel, the display area of each flat display substrate is overlapped with the blank area of the other flat display substrate, the orthographic projection of the grid driving circuit area of each flat display substrate on the plane where the other flat display substrate is positioned outside the other flat display substrate, the display areas of the two flat display substrates are adjacent to each other to form the display area of the flat display panel, and the grid driving circuit areas of the two flat display substrates form the two grid driving circuit areas of the flat display panel;
bending two end surfaces of the flat display panel towards a non-display surface of the flat display panel to enable the two grid driving circuit regions to be overlapped, and combining the two end surfaces of the flat display panel to obtain an annular display panel, wherein the method comprises the following steps:
bending two end surfaces of the flat display panel towards a non-display surface of the flat display panel, so that two side surfaces of each flat display substrate are connected, the two gate driving circuit regions are overlapped to obtain the annular display panel, two side surfaces of each flat display substrate are connected to form the annular display substrate, the joint surfaces of the two annular display substrates are staggered, the first joint surface is the joint surface of one annular display substrate, the third joint surface is the joint surface of the other annular display substrate, and the second joint surface is the contact surface of the gate driving circuit regions of the two annular display substrates.
Optionally, fabricating a flat display substrate includes:
forming a sub-pixel unit and a gate drive circuit on a substrate, wherein the sub-pixel unit is positioned in the display area, and the gate drive circuit is positioned in the gate drive circuit area;
forming a protective layer on one side of the sub-pixel units, which is far away from the substrate, wherein the protective layer covers the gate drive circuit and the sub-pixel units to obtain a planar display substrate;
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned at the same side, and the method comprises the following steps:
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned at the same side, the sub-pixel units, the gate drive circuit and the protective layer are positioned between the substrate substrates of the two flat display substrates, and the substrate of each flat display substrate is reused for the cover plate of the other flat display substrate.
Optionally, two flat display substrates are manufactured, comprising: manufacturing a bottom emission display substrate and a top emission display substrate;
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned at the same side, and the method comprises the following steps: and arranging the bottom emission display substrate and the top emission display substrate oppositely, and enabling the light-emitting surface of the top emission display substrate to face the backlight surface of the top emission display substrate.
Optionally, bending two end surfaces of the flat display panel towards a non-display surface of the flat display panel to overlap the two gate driving circuit regions, wherein the two end surfaces of the flat display panel are combined, and the method includes:
and bending two end surfaces of the flat display panel towards the non-display surface of the flat display panel, so that the two grid driving circuit regions are superposed and bonded by adopting gel, and the two end surfaces of the flat display panel are bonded by adopting gel.
Optionally, the flat display panel further has a binding region, and before bending both ends of the flat display panel toward the non-display surface of the flat display panel, the method further includes:
and binding the flexible circuit board with the peripheral driving circuit and the binding region respectively.
Optionally, the annular display panel is a circular annular display panel.
In a third aspect, there is provided an annular display device comprising the annular display panel of the first aspect or any one of the alternatives of the first aspect.
The beneficial effect that technical scheme that this application provided brought is:
according to the annular display panel, the manufacturing method of the annular display panel and the annular display device, the two grid driving circuit regions are overlapped to form the combination region in the annular display panel, and the width of the combination region is smaller than or equal to that of the grid driving circuit regions, so that the width of the combination region is small, and narrow-boundary display of the annular display panel is facilitated. In addition, since the thickness of the bonding area is equal to that of the display area, the influence of the difference between the thicknesses of the bonding area and the display area on the display effect of the annular display panel can be avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view illustrating an OLED display panel provided in the related art;
fig. 2 is a schematic perspective view of an annular display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic cross-sectional structural diagram of an annular display panel according to an embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of another annular display panel provided in an embodiment of the present application;
fig. 5 is an enlarged view of a region Q of the ring-shaped display panel shown in fig. 3 or 4;
fig. 6 is a schematic perspective view of another annular display panel provided in an embodiment of the present application;
FIG. 7 is a flowchart illustrating a method of manufacturing a ring-shaped display panel according to an embodiment of the present disclosure;
FIG. 8 is a flowchart of a method for manufacturing an annular display panel according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of a flat display substrate according to an embodiment of the present disclosure;
FIG. 10 is a schematic structural diagram of another flat display substrate provided in the embodiments of the present application;
fig. 11 is a schematic structural diagram of a flat display panel according to an embodiment of the present disclosure;
fig. 12 is a schematic diagram after a flexible circuit board is respectively bonded to a flat display panel and a peripheral driver circuit according to an embodiment of the present application.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The OLED display panel is known as a "dream display" and is favored by various large display manufacturers. An OLED display panel, particularly an Active-matrix organic light-emitting diode (AMOLED) display panel, similar to a liquid crystal display panel, includes a gate driving circuit, a source driving circuit, and sub-pixel units arranged in an array, where the sub-pixel units are located in a display region, the gate driving circuit is located in the gate driving circuit region, the gate driving circuit and the source driving circuit are respectively connected to the sub-pixel units, and the gate driving circuit includes a plurality of shift registers.
In the OLED display panel with the single-gate driving circuit, the gate driving circuit is positioned at one side of a display area, and the gate driving circuit scans each row of sub-pixel units from one end of the row of sub-pixel units through a plurality of shift registers. However, when the number of sub-pixel units in each row is large, the sub-pixel units located at the far end of the row may have a problem of insufficient driving, thereby affecting the display effect. In the OLED display panel having the dual gate driving circuit, the gate driving circuits are located in the gate driving circuit regions on both sides of the display region, and thus the area of the non-display region at the boundary of the OLED display panel increases, making it difficult to realize narrow-frame display. For example, please refer to fig. 1, which shows a schematic cross-sectional structure diagram of an OLED display panel provided in the related art, as shown in fig. 1, the OLED display panel is a flat display panel, and the OLED display panel has a display area F, and a gate driving circuit area S1 and a gate driving circuit area S2 located at two sides of the display area F, and the OLED display panel is difficult to implement narrow-frame display.
The OLED display panel can comprise a substrate base plate, when the substrate base plate of the OLED display panel is a flexible base plate, the OLED display panel is a flexible display panel, and the OLED display panel can be manufactured into the display panel with functions of bypassing, folding and the like by matching with a certain technology. For example, in connection with ring-shaped articles used daily, OLED display panels may be fabricated as ring-shaped display panels.
As known to the inventor, two opposite side surfaces of the OLED display panel shown in fig. 1, for example, a side surface close to the gate driving circuit region S1 and a side surface of the gate driving circuit region S2, may be bent toward the non-display surface of the OLED display panel so that the two side surfaces are in contact (i.e., the two side surfaces are in contact) to form a ring-shaped display panel, in which the gate driving circuit region S1 and the gate driving circuit region S2 are in contact to form a bonding region, the width of the bonding region is at least the sum of the widths of the gate driving circuit region S1 and the gate driving circuit region S2, the width of the bonding region is large, narrow boundary display of the ring-shaped display panel is difficult to achieve, and the bonding region affects the beauty of the ring-shaped display. As known to the inventor, opposite sides of the OLED display panel shown in fig. 1 may also be bent to face the non-display surface of the OLED display panel, so that the gate driving circuit region S1 and the gate driving circuit region S2 are stacked to form a ring-shaped display panel, the gate driving circuit region S1 and the gate driving circuit region S2 are stacked to form a bonding region, the width of the bonding region may be equal to the width of the gate driving circuit region, but in the ring-shaped display panel, the thickness of the bonding region is equal to the sum of the thicknesses of the gate driving circuit region S1 and the gate driving circuit region S2, and the thicknesses of the gate driving circuit region S1 and the gate driving circuit region S2 are generally equal to the thickness of the display region, which results in the thickness of the bonding region being greater than the thickness of the display region, so that there is a difference in thickness between the bonding region and the display region.
In view of this, how to reduce the width of the bonding region, achieve narrow boundary display of the annular display panel, and reduce the thickness step difference existing between the bonding region and the display region becomes one of the concerns of future research.
The embodiment of the application provides an annular display panel, a manufacturing method thereof and an annular display device, wherein in the annular display panel, the width of a combination area is smaller than or equal to that of a grid driving circuit area, and the thickness of the combination area is equal to that of a display area, so that narrow-boundary display of the annular display panel is facilitated, and the influence of the thickness difference between the combination area and the display area on the display effect of the annular display panel can be avoided. For details of the present application, reference is made to the following description of examples.
Referring to fig. 2, which shows a schematic perspective view of a ring-shaped display panel 00 according to an embodiment of the present application, referring to fig. 2, the ring-shaped display panel 00 has a display area a and two gate driving circuit areas (not shown in fig. 2), the two gate driving circuit regions are located on two sides of the display region a, the gate driving circuit regions are overlapped to form a combined region B, the width w of the combined region B is smaller than or equal to the width of the gate driving circuit region, the thickness of the combined region B is equal to the thickness of the display region a, the thickness direction d of the annular display panel 00 is perpendicular to the axis e of the annular display panel 00, the axis e of the annular display panel 00 is parallel to the data line scanning direction (not marked in fig. 2) of the annular display panel 00, the thickness of the combined region B refers to the size of the combined region B in the thickness direction d of the annular display panel 00, and the thickness of the display region a refers to the size of the display region a in the thickness direction d of the annular display panel 00.
To sum up, according to the annular display panel provided by the embodiment of the present application, in the annular display panel, the two gate driving circuit regions are stacked to form the bonding region, and the width of the bonding region is smaller than or equal to that of the gate driving circuit region, so that the width of the bonding region is smaller, which is beneficial to realizing narrow-boundary display of the annular display panel. In addition, since the thickness of the bonding area is equal to that of the display area, the influence of the difference between the thicknesses of the bonding area and the display area on the display effect of the annular display panel can be avoided.
Optionally, in this embodiment of the present application, the widths of the two gate driving circuit regions are equal, and the width w of the bonding region B is equal to the width of the gate driving circuit region, so that the width w of the bonding region B may be half of the sum of the widths of the two gate driving circuit regions, which is convenient for implementing narrow-boundary display of the annular display panel. Of course, the width w of the bonding region B may also be smaller than the width of the gate driving circuit region when the actual process allows, which is not limited in the embodiment of the present application.
Alternatively, in the embodiment of the present application, the display surface of the annular display panel 00 is located at the outer side of the annular display panel 00, the ring-shaped display panel 00 is formed by bending and bonding both end surfaces of a flat display panel toward a non-display surface of the flat display panel, the two end faces can be parallel to the scanning direction of the data lines of the flat display panel, please refer to fig. 3, which shows a schematic cross-sectional structure of an annular display panel 00 provided in an embodiment of the present application, see fig. 2 and 3, the bonding region B of the annular display panel 00 comprises a first bonding surface M1, a second bonding surface M2 and a third bonding surface M3, the second bonding surface M2 intersects with the first bonding surface M1 and the third bonding surface M3 respectively, the first bonding surface M1 and the third bonding surface M3 both extend in the radial direction of the annular display panel 00, the second bonding surface M2 extends in the circumferential direction of the annular display panel 00, and the two gate drive circuit regions are located on the second bonding surface M2. As will be readily understood by those skilled in the art, the radial direction of the annular display panel is generally perpendicular to the axis of the annular display panel, and the annular display panel may be a circular annular display panel or any polygonal annular display panel, and when the annular display panel is a circular annular display panel, the radial direction of the annular display panel refers to the radial direction or the diameter direction of the circular annular display panel, and when the circular annular display panel is a polygonal annular display panel, the radial direction of the circular annular display panel refers to the radial direction or the diameter direction of the circumscribed cylinder of the circular annular display panel.
Optionally, in this embodiment of the present application, the annular display panel includes two annular display substrates that are connected together, each annular display substrate is formed by two side faces of a planar display substrate, each annular display substrate has a gate driving circuit region, a display region and a blank region that are sequentially distributed along a gate line scanning direction of the annular display substrate, in the annular display panel, the gate line scanning directions of the two annular display substrates are opposite, the connecting faces of the two annular display substrates are staggered, the gate driving circuit regions of the two annular display substrates are overlapped, the display region of each annular display substrate is overlapped with the blank region of the other annular display substrate, the display regions of the two annular display substrates are adjacent to form the display region of the annular display panel, the gate driving circuit regions of the two annular display substrates form the two gate driving circuit regions of the annular display panel, the first connecting face M1 is the connecting face of one annular display substrate, the third bonding surface M3 is a contact surface of another annular display substrate, and the second bonding surface M2 is a contact surface of gate driving circuit regions of the two annular display substrates. The annular display substrate may include a substrate, and the blank region may be a region on the substrate where no structure is disposed.
As shown in fig. 2 and fig. 3, the ring-shaped display panel 00 includes a ring-shaped display substrate 001 and a ring-shaped display substrate 002 which are sleeved together, each of the ring-shaped display substrate 001 and the ring-shaped display substrate 002 can be formed by two side faces of a planar display substrate, please refer to fig. 4, which shows a schematic structural diagram of another ring-shaped display panel 00 provided in this embodiment of the present application, the ring-shaped display panel 00 includes a ring-shaped display substrate 001 and a ring-shaped display substrate 002 which are sleeved together, the ring-shaped display substrate 001 has a gate driving circuit region B1, a display region a1 and a blank region C1 which are sequentially distributed along a gate line scanning direction (not shown in fig. 4) of the ring-shaped display substrate 001, the ring-shaped display substrate 002 has a gate driving circuit region B2, a display region a2 and a blank region C2 which are sequentially distributed along a gate line scanning direction (not shown in fig. 4) of the ring, the scanning direction of the gate lines of the annular display substrate 001 is opposite to the scanning direction of the gate lines of the annular display substrate 002, the junction surface (not shown in fig. 4) of the annular display substrate 001 is staggered with the junction surface (not shown in fig. 4) of the annular display substrate 002, the gate driving circuit region B1 of the annular display substrate 001 is overlapped with the gate driving circuit region B2 of the annular display substrate 002, the display region a1 of the annular display substrate 001 is overlapped with the margin region C2 of the annular display substrate 002, the display region a2 of the annular display substrate 002 is overlapped with the margin region C1 of the annular display substrate 001, referring to fig. 2 and fig. 4, the display region a1 of the annular display substrate 001 and the display region a2 of the annular display substrate 002 are adjacent to form the display region a of the annular display panel 00, the gate driving circuit region B1 of the annular display substrate 001 and the gate driving circuit region B2 of the annular display substrate 002 form two gate driving circuit regions of the annular display panel 00, referring to fig. 3 and 4, the first bonding surface M1 is a contact surface of two side surfaces of the annular display substrate 001, the third bonding surface M3 is a contact surface of two side surfaces of the annular display substrate 002, and the second bonding surface M2 is a contact surface of the gate driving circuit region B1 and the gate driving circuit region B2.
As will be readily understood by those skilled in the art, air media such as water, oxygen and the like generally enter the display panel through the interface in the display panel, and the air media such as water, oxygen and the like entering the display panel may damage devices in the display panel.
Alternatively, the ring-shaped display panel is formed by bending two end faces of the flat display panel towards the non-display surface of the flat display panel and then bonding the two end faces by using gel. Referring to fig. 5 showing an enlarged view of a region Q of the ring-shaped display panel 00 shown in fig. 3 or 4, referring to fig. 5, the ring-shaped display panel 00 is formed by bending both end surfaces of the flat display panel toward a non-display surface of the flat display panel and then bonding the two end surfaces with a gel G, which may be a sealant or a waterproof sealant having high oxidation and waterproof functions. As shown in fig. 5, two side surfaces of the annular display substrate 001, two side surfaces of the annular display substrate 002 and two gate driving circuit regions are bonded by using gel G.
Alternatively, referring to fig. 4 and 5, the annular display substrate 001 includes a substrate 0010 (not labeled in fig. 4), and sub-pixel cells (not shown in fig. 4 and 5) and gate driving circuits (not shown in fig. 4 and 5) disposed on the substrate 0010, the sub-pixel cells being located in the display area a1, the gate driving circuits being located in the gate driving circuit area B1; the ring-shaped display substrate 002 includes a substrate 0020 (not shown in fig. 4), and sub-pixel cells (not shown in both fig. 4 and 5) and a gate driving circuit (not shown in both fig. 4 and 5) disposed on the substrate 0020, the sub-pixel cells being located in the display area a2, and the gate driving circuit being located in the gate driving circuit area B2. In the annular display panel 00, the sub-pixel units and the gate driving circuit are located between a substrate 0010 and a substrate 0020, the substrate 0010 is reused for a cover plate of the annular display substrate 002, and the substrate 0020 is reused for a cover plate of the annular display substrate 001. In the embodiment of the application, because the substrate base plate of one annular display base plate can be reused as the cover plate of another display base plate, the cover plate can be avoided to be arranged for each annular display base plate independently, and the thickness of the annular display panel can be reduced. For example, the sub-pixel unit may include a Thin Film Transistor (TFT) and a light emitting unit, the TFT may include a gate electrode, a gate insulating layer, an active layer, a source electrode, and a drain electrode, the light emitting unit may include an anode electrode, a cathode electrode, and a light emitting layer between the anode electrode and the cathode electrode, the anode electrode is connected to the drain electrode such that the light emitting unit is connected to the TFT, the anode electrode is a reflective electrode and the cathode electrode is a transparent electrode in a top emission display substrate, and the anode electrode is a transparent electrode and the cathode electrode is a reflective electrode in a bottom emission display substrate.
Optionally, each of the annular display substrates 001 and 002 further includes a protective layer (not shown in fig. 4 and 5). In the annular display substrate 001, the protective layer is positioned on one side of the sub-pixel units, which is far away from the substrate 0010, and the protective layer covers the gate driving circuit and the sub-pixel units; in the annular display substrate 002, the protection layer is located on one side of the sub-pixel units far away from the substrate 0020, and the protection layer covers the gate driving circuit and the sub-pixel units; the protective layers of the annular display substrate 001 and the annular display substrate 002 are both located between the substrate 0010 and the substrate 0020. Alternatively, in the ring-shaped display substrate 001, the protective layer may cover the gate driving circuit region B1 and the display region a1, and in the ring-shaped display substrate 002, the protective layer may cover the gate driving circuit region B2 and the display region a 2. The protective layer can be made of at least one of silicon nitride, silicon oxide, silicon oxynitride, glass fiber and polyimide, the sub-pixel unit and the gate drive circuit can be protected by the protective layer, and when the planar display substrate is bent into the annular display substrate, the risk that the sub-pixel unit and the gate drive circuit are damaged can be reduced by the protective layer.
As will be readily understood by those skilled in the art, the display substrate can be divided into a top emission display substrate and a bottom emission display substrate according to the light extraction manner, where the light-emitting surface of the top emission display substrate is a surface of the display substrate away from the substrate, and the light-emitting surface of the bottom emission display substrate is a surface of the display substrate where the substrate is located. In the annular display panel provided by the embodiment of the application, the annular display substrate positioned at the outer side can be a bottom emission display substrate, and the annular display substrate positioned at the inner side can be a top emission display substrate. For example, as shown in fig. 2 to 4, in the ring-shaped display panel 00, the ring-shaped display substrate located at the outer side is the ring-shaped display substrate 002, and the ring-shaped display substrate located at the inner side is the ring-shaped display substrate 001, so that the ring-shaped display substrate 002 is a bottom emission display substrate, the light emitting surface of the ring-shaped display substrate 002 faces the direction of the substrate 0020 of the ring-shaped display substrate 002, the ring-shaped display substrate 001 is a top emission display substrate, the light emitting surface of the ring-shaped display substrate 001 faces the direction away from the substrate 0010 of the ring-shaped display substrate 001, and the light emitting surfaces of the ring-shaped display substrate 001 and the ring-shaped display substrate 002 both face the outer sides of the ring-shaped display panel 00, so that the display.
Optionally, the annular display panel further has a bonding region, and the annular display panel further includes a Flexible Printed Circuit (FPC) and a peripheral driver Circuit, and the Flexible Printed Circuit is bonded to the bonding region and the peripheral driver Circuit of the annular display panel, respectively. For example, please refer to fig. 6, which shows a schematic perspective view of another annular display panel 00 provided in an embodiment of the present application. The ring-shaped display panel 00 further includes: the flexible display panel comprises a flexible circuit board 003, a flexible circuit board 004, a peripheral driving circuit 005 and a peripheral driving circuit 006, wherein the annular display substrate 001 and the annular display substrate 002 both have binding regions, the flexible circuit board 003 is respectively bound with the binding regions of the peripheral driving circuit 005 and the annular display substrate 001, and the flexible circuit board 004 is respectively bound with the binding regions of the peripheral driving circuit 006 and the annular display substrate 002. Optionally, the bonding region of the annular display substrate, the flexible circuit board and the peripheral driver circuit may be provided with a gold finger, the flexible circuit board 003 is bonded with the peripheral driver circuit 005 and the annular display substrate 001 through the gold finger, and the flexible circuit board 004 is bonded with the peripheral driver circuit 006 and the annular display substrate 002 through the gold finger.
Alternatively, as shown in fig. 2 to 6, the ring-shaped display panel 00 is a ring-shaped display panel. It should be noted that, in the embodiment of the present application, the ring-shaped display panel is taken as an example for description, and it is easily understood by those skilled in the art that the ring-shaped display panel may also be any polygonal ring-shaped display panel, for example, a triangular ring-shaped display panel, a quadrilateral ring-shaped display panel, a hexagonal ring-shaped display panel, and the like, and the embodiment of the present application is not limited herein.
Alternatively, in the embodiment of the present application, the ring-shaped display panel 00 may be an electroluminescence display panel, and the ring-shaped display substrate 001 and the ring-shaped display substrate 002 may be both electroluminescence display substrates. For example, the annular display panel 00 may be an OLED display panel or a Quantum Dot Light Emitting diode (QLED) display panel, and both the annular display substrate 001 and the annular display substrate 002 may be an OLED display substrate or a QLED display substrate, which is not limited in this embodiment.
Those skilled in the art will readily understand that, only the structures related to the technical solution of the present application in the annular display panel are described above, in practical applications, the annular display panel further includes other structures, for example, the annular display panel further includes structures such as a source driving circuit, each annular display substrate may include a source driving circuit, a gate driving circuit is also referred to as a row driving circuit, a source driving circuit is also referred to as a column driving circuit, and other structures not described in the annular display panel may refer to the related art, which is not described herein again in this application.
In summary, in the annular display panel provided in the embodiment of the present application, because in the annular display panel, the two gate driving circuit regions are stacked to form the bonding region, and the width of the bonding region is less than or equal to the width of the gate driving circuit region, the width of the bonding region is small, which is beneficial to realizing narrow-boundary display of the annular display panel. Compared with the technology known by the inventor, the annular display substrate provided by the embodiment of the application can reduce the width of the bonding area of the annular display panel by at least half. In addition, since the thickness of the bonding area is equal to that of the display area, the influence of the difference between the thicknesses of the bonding area and the display area on the display effect of the annular display panel can be avoided.
The following are embodiments of a method for manufacturing a ring-shaped display panel of the present application, and the method and principle for manufacturing a ring-shaped display panel in the embodiments of the present application can be referred to the following description of the embodiments.
Referring to fig. 7, a method flowchart of a method for manufacturing a ring-shaped display panel according to an embodiment of the present application is shown, where the method for manufacturing a ring-shaped display panel can be used to manufacture the ring-shaped display panel 00 shown in any one of fig. 2 to 6. Referring to fig. 7, the method of manufacturing the ring-shaped display panel includes the steps of:
In the annular display panel, two grid driving circuit regions are superposed to form a combination region, the width of the combination region is smaller than or equal to that of the grid driving circuit regions, the thickness of the combination region is equal to that of the display region, the thickness direction of the annular display panel is vertical to the axis of the annular display panel, and the axis of the annular display panel is parallel to the scanning direction of a data line of the annular display panel.
In summary, in the method for manufacturing the annular display panel provided in the embodiment of the present application, because the two gate driving circuit regions are stacked to form the bonding region in the annular display panel, and the width of the bonding region is smaller than or equal to the width of the gate driving circuit region, the width of the bonding region is smaller, which is beneficial to realizing narrow-boundary display. In addition, since the thickness of the bonding area is equal to that of the display area, the influence of the difference between the thicknesses of the bonding area and the display area on the display effect of the annular display panel can be avoided.
Fig. 8 is a flowchart illustrating a method of another method for manufacturing a ring-shaped display panel according to an embodiment of the present application, where the method for manufacturing a ring-shaped display panel can be used to manufacture the ring-shaped display panel 00 shown in any one of fig. 2 to 6, and the embodiment of the present application is described with reference to fig. 3 to 5, taking manufacturing the ring-shaped display panel shown in fig. 6 as an example. Referring to fig. 8, the method of manufacturing the ring-shaped display panel may include the steps of:
In the embodiment of the present application, each of the two flat display substrates has a gate driving circuit region, a display region and a blank region sequentially distributed along a gate line scanning direction of the flat display substrate, and each flat display substrate further has a binding region. The two flat display substrates can comprise a top emission display substrate and a bottom emission display substrate, and the top emission display substrate or the bottom emission display substrate comprises a substrate, a sub-pixel unit and a gate driving circuit which are arranged on the substrate, and a protective layer which covers the sub-pixel unit and the gate driving circuit, wherein the sub-pixel unit is arranged in the display area, the gate driving circuit is arranged in the gate driving circuit area, and the blank area can be an area without any structure on the substrate. The sub-pixel unit may include a TFT and a light emitting unit, the TFT may include a gate electrode, a gate insulating layer, an active layer, a source electrode, and a drain electrode, the light emitting unit may include an anode, a cathode, and a light emitting layer between the anode and the cathode, the anode is connected to the drain electrode, the anode is a reflective electrode and the cathode is a transparent electrode in the top emission display substrate, and the anode is a transparent electrode and the cathode is a reflective electrode in the bottom emission display substrate.
By way of example, please refer to fig. 9, which illustrates a schematic structural diagram of a planar display substrate 001 according to an embodiment of the present application, where the planar display substrate 001 may be a top emission display substrate, referring to fig. 9, the planar display substrate 001 has a gate driving circuit region B1, a display region a1, and a blank region C1 sequentially distributed along a gate line scanning direction x1 of the planar display substrate 001, and the planar display substrate 001 further has a bonding region (not shown in fig. 9), the planar display substrate 001 includes a substrate 0010, and a gate driving circuit 0011, a sub-pixel unit 0012, and a protective layer (not shown in fig. 9) disposed on the substrate 0010, the gate driving circuit 0011 is located in the gate driving circuit region B1, the sub-pixel unit 0012 is located in the display region a1, and the protective layer covers the gate driving circuit region B1 and the display region a 1. Alternatively, manufacturing the flat display substrate 001 may include: a gate driving circuit 0011, a sub-pixel unit 0012 and a protection layer (not shown in fig. 9) are formed on a substrate 0010, the gate driving circuit 0011 and the sub-pixel unit 0012 may be manufactured simultaneously or separately, the protection layer may be attached to a side of the gate driving circuit 0011 and the side of the sub-pixel unit 0012 away from the substrate 0010, and a related technology may be referred to in an implementation process of manufacturing the planar display substrate 001, which is not described herein again.
For example, referring to fig. 10, a schematic structural diagram of another flat display substrate 002 according to an embodiment of the present disclosure is shown, where the flat display substrate 002 may be a top emission display substrate, referring to fig. 10, the flat display substrate 002 has a gate driving circuit region B2, a display region a2, and a blank region C2 sequentially distributed along a gate line scanning direction x2 of the flat display substrate 002, and the flat display substrate 002 further has a bonding region (not labeled in fig. 10), the flat display substrate 002 includes a substrate 0020, and a gate driving circuit 0021, a sub-pixel unit 0022, and a protective layer (not shown in fig. 10) disposed on the substrate 0020, the gate driving circuit 0021 is located in the gate driving circuit region B2, the sub-pixel unit 0022 is located in the display region a2, and the protective layer covers the gate driving circuit region B2 and the display region a 2. The process of manufacturing the flat display substrate 002 is the same as the process of manufacturing the flat display substrate 001, and is not described herein again.
Referring to fig. 11, which shows a schematic structural diagram of a flat display panel according to an embodiment of the present invention, referring to fig. 9 to 11, the flat display substrate 001 shown in fig. 9 and the flat display substrate 002 shown in fig. 10 may be disposed oppositely, such that the light emitting surface of the flat display substrate 001 faces the flat display substrate 002, the gate line scanning direction x1 of the flat display substrate 001 is opposite to the gate line scanning direction x2 of the flat display substrate 002, the display area a1 of the flat display substrate 001 coincides with the margin area C2 of the flat display substrate 002, the display area a2 of the flat display substrate 002 coincides with the margin area C1 of the flat display substrate 001, the orthographic projection of the gate driver B1 of the flat display substrate 001 on the plane of the flat display substrate 002 is located outside the flat display substrate 002, the orthographic projection of the gate driver circuit B2 of the flat display substrate 002 on the plane of the flat display substrate 001 is located outside the flat display substrate 001, the gate driving circuit 0011, the sub-pixel unit 0012 and the protective layer of the 001 of the flat display substrate, and the 002 gate driving circuit 0021, the sub-pixel unit 0022 and the protective layer of the flat display substrate are all located between the substrate 0010 and the substrate 0020 of the 001 and the 002 of the flat display substrate, so that the flat display panel shown in fig. 11 is obtained. The display area a1 of the flat display substrate 001 and the display area a2 of the flat display substrate 002 are adjacent to each other to form a display area of the flat display panel, the gate driving circuit area B1 of the flat display substrate 001 and the gate driving circuit area B2 of the flat display substrate 002 form two gate driving circuit areas of the flat display panel, the substrate 0010 of the flat display substrate 001 is reused for a cover plate of the flat display substrate 002, and the substrate 0020 of the flat display substrate 002 is reused for a cover plate of the flat display substrate 001.
Optionally, before the flat display substrate 001 and the flat display substrate 002 are oppositely disposed, a sealant may be coated on a substrate 0010 of the flat display substrate 001 around the gate driving circuit region B1 and the display region a1, so that the gate driving circuit 0011 and the sub-pixel unit 0012 are both located in a region surrounded by the sealant, a sealant is coated on a substrate 0020 of the flat display substrate 002 around the gate driving circuit region B2 and the display region a2, so that the gate driving circuit 0021 and the sub-pixel unit 0022 are both located in a region surrounded by the sealant, and then the flat display substrate 001 and the flat display substrate 002 are oppositely disposed according to the above manner, and the sealant is cured, so that the flat display substrate 001 and the flat display substrate 002 are bonded by the sealant. The frame sealing glue can be ultraviolet light curing glue or heat curing glue, and the main components of the frame sealing glue can comprise acrylic resin, epoxy resin, a photoinitiator, a curing agent and the like. When the frame sealing glue is ultraviolet light curing glue, the frame sealing glue can be irradiated by ultraviolet rays to be cured, and when the frame sealing glue is heat curing glue, the frame sealing glue can be heated to be cured.
And 803, binding the flexible circuit board with the peripheral driving circuit and the binding area of the flat display panel respectively.
Please refer to fig. 12, which illustrates a schematic diagram after the flexible circuit board is respectively bonded with the flat display panel and the peripheral driver circuit according to an embodiment of the present application. The flat display panel is provided with a binding area, and the flexible circuit board can be respectively bound with the binding area of the flat display panel and the peripheral driving circuit. Wherein, the bonding regions of the flat display panel may include the bonding region of the flat display substrate 001 and the bonding region of the flat display substrate 002, referring to fig. 12 in combination with fig. 11, the flexible circuit board 003 may be respectively bonded to the bonding region of the flat display substrate 001 and the peripheral driving circuit 005, and the flexible circuit board 004 may be respectively bonded to the bonding region of the flat display substrate 002 and the peripheral driving circuit 006. Optionally, the bonding region of the flat display substrate, the flexible circuit board and the peripheral driving circuit may be provided with a gold finger, the flexible circuit board 003 is bonded with the peripheral driving circuit 005 and the flat display substrate 001 through the gold finger, and the flexible circuit board 004 is bonded with the peripheral driving circuit 006 and the flat display substrate 002 through the gold finger.
And 804, bending two ends of the flat display panel towards the non-display surface of the flat display panel to enable two side surfaces of each flat display substrate to be connected, enabling the connection surfaces of the two flat display substrates to be staggered, and overlapping the gate driving circuit areas of the two flat display substrates to obtain the annular display panel.
Fig. 6 may be referred to as a schematic structural diagram of the annular display panel. The two ends of the flat display panel shown in fig. 12 may be bent toward the flat display substrate 001 to make the two side surfaces of the flat display substrate 001 contact, the two side surfaces of the flat display substrate 002 contact, and the gate driving circuit region B1 and the gate driving circuit region B2 overlap, and then the gate driving circuit region B1 and the gate driving circuit region B2, the two side surfaces of the flat display substrate 001, and the two side surfaces of the flat display substrate 002 are bonded with gel to make the bonding surface of the annular display substrate 001 and the bonding surface of the annular display substrate 002 offset, so as to obtain the annular display panel 00 shown in fig. 6. Here, the gate driving circuit region B1 and the gate driving circuit region B2 are stacked to form a bonding region B, where the width w of the bonding region B is less than or equal to the width of the gate driving circuit region B1 and less than or equal to the width of the gate driving circuit region B2, and illustratively, when the width of the gate driving circuit region B1 is equal to the width of the gate driving circuit region B2, the width w of the bonding region B may be equal to the width of the gate driving circuit region B1, and the thickness of the bonding region B may be equal to the thickness of the display region a.
It should be noted that, the sequence of the steps of the method for manufacturing the annular display panel provided in the embodiment of the present application may be appropriately adjusted, and the steps may be increased or decreased according to the circumstances, and any method that can be easily conceived by a person skilled in the art within the technical scope of the present application is included in the protection scope of the present application, and therefore, the details are not described again.
In summary, in the method for manufacturing the annular display panel provided in the embodiment of the present application, because the two gate driving circuit regions are stacked to form the bonding region in the annular display panel, and the width of the bonding region is smaller than or equal to the width of the gate driving circuit region, the width of the bonding region is smaller, which is beneficial to realizing narrow-boundary display. In addition, since the thickness of the bonding area is equal to that of the display area, the influence of the difference between the thicknesses of the bonding area and the display area on the display effect of the annular display panel can be avoided.
Based on the same inventive concept, embodiments of the present application also provide a ring-shaped display device including the ring-shaped display panel provided by the above embodiments, which may be an electroluminescent display device, for example, an OLED display device or a QLED display device. The annular display device can be any product or component with a display function, such as wearable devices such as electronic paper, mobile phones, televisions, displays, digital photo frames, navigators, watches or bracelets.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A ring-shaped display panel is characterized in that,
the annular display panel is provided with a display area and two grid driving circuit areas, the two grid driving circuit areas are positioned on two sides of the display area, the two grid driving circuit areas are overlapped to form a combination area, the width of the combination area is smaller than or equal to that of the grid driving circuit areas, the thickness of the combination area is equal to that of the display area, the thickness direction of the annular display panel is perpendicular to the axis of the annular display panel, and the axis of the annular display panel is parallel to the scanning direction of a data line of the annular display panel;
the bonding area comprises a first bonding surface, a second bonding surface and a third bonding surface, the second bonding surface is intersected with the first bonding surface and the third bonding surface respectively, the first bonding surface and the third bonding surface extend along the radial direction of the annular display panel, the second bonding surface extends along the circumferential direction of the annular display panel, and the gate driving circuit area is located on the second bonding surface.
2. Annular display panel in accordance with claim 1,
the annular display panel comprises two annular display substrates which are sleeved, the annular display substrates are formed by connecting two side surfaces of a planar display substrate, and each annular display substrate is provided with a grid driving circuit area, a display area and a blank area which are sequentially distributed along the scanning direction of a grid line of the annular display substrate;
in the annular display panel, the grid line scanning directions of the two annular display substrates are opposite, the connection surfaces of the two annular display substrates are staggered, the grid driving circuit areas of the two annular display substrates are overlapped, and the display area of each annular display substrate is overlapped with the blank area of the other annular display substrate;
the display areas of the two annular display substrates are adjacent to form the display areas of the annular display panel, the gate drive circuit areas of the two annular display substrates form the two gate drive circuit areas of the annular display panel, the first bonding surface is the joint surface of one annular display substrate, the third bonding surface is the joint surface of the other annular display substrate, and the second bonding surface is the contact surface of the gate drive circuit areas of the two annular display substrates.
3. Annular display panel in accordance with claim 2,
the annular display substrate includes: the display panel comprises a substrate base plate, a sub-pixel unit, a grid driving circuit and a protective layer, wherein the sub-pixel unit and the grid driving circuit are arranged on the substrate base plate, the protective layer is positioned on one side, away from the substrate base plate, of the sub-pixel unit, the sub-pixel unit is positioned in the display area, the grid driving circuit is positioned in the grid driving circuit area, the protective layer covers the grid driving circuit and the sub-pixel unit, the grid driving circuit and the protective layer are all positioned between the substrate base plates of the two annular display base plates, and the substrate base plate of each annular display base plate is used for a cover plate of the other annular display base plate.
4. Annular display panel in accordance with claim 2 or 3,
in the annular display panel, the annular display substrate positioned at the outer side is a bottom emission display substrate, and the annular display substrate positioned at the inner side is a top emission display substrate.
5. The annular display panel according to any of claims 1 to 3,
the annular display panel further has a binding region, the annular display panel including: the flexible circuit board is respectively bound with the binding area and the peripheral driving circuit.
6. A method of manufacturing a ring-shaped display panel, the method comprising:
manufacturing two flat display substrates, wherein each flat display substrate is provided with a grid driving circuit region, a display region and a blank region which are sequentially distributed along the grid line scanning direction of the flat display substrate;
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned on the same side, the flat display panel is obtained, the scanning directions of the grid lines of the two flat display substrates are opposite in the flat display panel, the display area of each flat display substrate is overlapped with the blank area of the other flat display substrate, the orthographic projection of the grid driving circuit area of each flat display substrate on the plane where the other flat display substrate is positioned outside the other flat display substrate, the display areas of the two flat display substrates are adjacent to each other to form the display area of the flat display panel, and the grid driving circuit areas of the two flat display substrates form the two grid driving circuit areas of the flat display panel;
bending two end faces of the flat display panel towards a non-display surface of the flat display panel, so that two side faces of each flat display substrate are connected, the two grid driving circuit regions are overlapped to obtain the annular display panel, two side faces of each flat display substrate are connected to form the annular display substrate, the joint faces of the two annular display substrates are staggered, the two grid driving circuit regions are overlapped to form a joint region, the width of the joint region is smaller than or equal to the width of the grid driving circuit region, the thickness of the joint region is equal to the thickness of the display region, the thickness direction of the annular display panel is perpendicular to the axis of the annular display panel, and the axis of the annular display panel is parallel to the scanning direction of a data line of the annular display panel.
7. The method of claim 6,
manufacturing a flat display substrate, comprising:
forming a sub-pixel unit and a gate drive circuit on a substrate, wherein the sub-pixel unit is positioned in the display area, and the gate drive circuit is positioned in the gate drive circuit area;
forming a protective layer on one side of the sub-pixel units, which is far away from the substrate, wherein the protective layer covers the gate drive circuit and the sub-pixel units to obtain a planar display substrate;
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned at the same side, and the method comprises the following steps:
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned at the same side, the sub-pixel units, the gate drive circuit and the protective layer are positioned between the substrate substrates of the two flat display substrates, and the substrate of each flat display substrate is reused for the cover plate of the other flat display substrate.
8. The method according to claim 6 or 7,
manufacturing two flat display substrates, comprising: manufacturing a bottom emission display substrate and a top emission display substrate;
the two flat display substrates are oppositely arranged, so that the light emergent surfaces of the two flat display substrates are positioned at the same side, and the method comprises the following steps: and arranging the bottom emission display substrate and the top emission display substrate oppositely, and enabling the light-emitting surface of the top emission display substrate to face the backlight surface of the top emission display substrate.
9. The method according to claim 6 or 7,
the flat display panel further has a binding region, and before bending both ends of the flat display panel toward a non-display surface of the flat display panel, the method further includes:
and binding the flexible circuit board with the peripheral driving circuit and the binding region respectively.
10. A ring display device, characterized in that it comprises a ring display panel according to any of claims 1 to 5.
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