CN110689847B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110689847B CN110689847B CN201911102931.1A CN201911102931A CN110689847B CN 110689847 B CN110689847 B CN 110689847B CN 201911102931 A CN201911102931 A CN 201911102931A CN 110689847 B CN110689847 B CN 110689847B
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- display panel
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- input ends
- circuit area
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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]
- G09G3/3225—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] using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The invention provides a display panel and a display device. The display panel includes: the circuit comprises a substrate, a first electrode, a second electrode and a third electrode, wherein a display area and a circuit area are limited on the substrate, and the circuit area is arranged on one side of the display area; the input ends are arranged in the circuit area at intervals along a first direction, are arranged in multiple rows in the circuit area along a second direction, and are arranged in a crossed mode along the first direction and the second direction. According to the display panel provided by the invention, the plurality of input ends arranged in the circuit area are designed into a multi-row design, so that the width of the circuit area can be reduced, and the manufacturing of the display panel bent at four sides is facilitated, or the number of the input ends is increased under the condition that the width of the circuit area is not increased, and the high-resolution display design of the display panel is facilitated.
Description
Technical Field
The invention relates to the technical field of display panels, in particular to a display panel and a display device.
Background
Active Matrix Organic Light Emitting Diode (AMOLED) displays have characteristics of fast response, high contrast, and wide viewing angle, and thus have attracted much attention as a new generation of display mode to gradually replace the conventional Liquid Crystal Display (LCD) and be widely used in mobile phone screens, computer monitors, and full-color computers. The design trend of the full-screen is a long-standing market demand, and the AMOLED has a significant advantage over the LCD in that the flexible display can realize the display of the left and right edges (Edge) to achieve the full-screen display of the left and right sides visually. However, it is difficult to achieve edge display by forming circuit regions (Pad) in the upper and lower frames, particularly in the lower frame where the IC is located.
Therefore, how to shorten the width of the circuit area (Tail) of the lower frame of the display panel becomes a problem to be solved.
Disclosure of Invention
The present invention has been accomplished based on the following findings:
referring to fig. 1, on the premise that the display panel 10 is bent left and right, the upper and lower frames are further bent, and four corners enter the double-folded region, so that a defect of Crack (Crack) is very likely to occur, and mass production is not possible. Referring to fig. 2, the countermeasure to be solved is the width W of the lower frame0Narrowing is performed, so that the left and right bending areas and the lower frame bending area can not be overlapped. In order to narrow the width of the lower frame circuit area of the display panel, the input ends of the circuit areas are designed into a plurality of rows, so that the width of the circuit areas can be effectively reduced, and the process of bending the display screen from four sides is facilitated.
In a first aspect of the invention, a display panel is presented.
According to an embodiment of the present invention, the display panel includes: the display device comprises a substrate, a first circuit layer and a second circuit layer, wherein a display area and a circuit area are limited on the substrate, and the circuit area is arranged on one side of the display area; the input ends are arranged in the circuit area and are arranged at intervals along a first direction, the input ends are arranged in the circuit area in a plurality of rows along a second direction, and the first direction and the second direction are arranged in a crossed mode.
According to the display panel provided by the embodiment of the invention, the plurality of input ends arranged in the circuit area are designed into a multi-row design, so that the width of the circuit area can be reduced, and the manufacturing of the display panel bent at four sides is facilitated, or the number of the input ends is increased under the condition that the width of the circuit area is not increased, and the high-resolution display design of the display panel is facilitated.
In addition, the display panel according to the above embodiment of the present invention may further have the following additional technical features:
according to the embodiment of the invention, the input ends of two adjacent rows are arranged in a staggered manner.
According to the embodiment of the invention, the distance between two adjacent input ends in the first direction is 0.15-0.18 mm.
According to an embodiment of the present invention, the circuit region includes one first sub-region and two second sub-regions, wherein the two second sub-regions and the one first sub-region are alternately arranged along the first direction; and the plurality of input ends are arranged in a plurality of rows in the second subregion along a second direction.
According to an embodiment of the present invention, the display panel further comprises an integrated circuit disposed in the circuit region and between the display region and the first sub-region; and the plurality of input ends are arranged in a single row along the second direction in the first subregion.
According to an embodiment of the invention, the plurality of inputs comprises: a plurality of first input terminals disposed in the first subregion and arranged in a single row along a second direction; a plurality of second input terminals disposed in the second subregion and arranged in a plurality of rows along a second direction.
According to the embodiment of the invention, the distance between two adjacent second input ends in the first direction is 0.1-0.18 mm.
According to the embodiment of the invention, the distance between two adjacent first input ends in the first direction is 0.15-0.18 mm.
According to an embodiment of the invention, the material forming the substrate is a flexible material.
In a second aspect of the invention, a display device is presented.
According to an embodiment of the present invention, the display device includes the display panel described above.
According to the display device provided by the embodiment of the invention, the circuit area width of the display panel is narrower or the number of input ends on the circuit area is more, so that the four-side bending yield of the display device is higher, or the resolution of the display device is higher. It will be appreciated by those skilled in the art that the features and advantages described above for the display panel are still applicable to the display device and will not be described in detail herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing aspects of the invention are explained in the description of the embodiments with reference to the following drawings, in which:
FIG. 1 is a schematic top view of a display panel with four curved sides, showing a structural view (a) and a schematic cross-sectional view along EE 'line (b) and FF' line (c);
FIG. 2 is a schematic top view of a lower frame of the display panel;
FIG. 3 is a schematic top view of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of two rows of input terminals in a circuit area according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of two rows of input terminals in a circuit area according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of two rows of input terminals in a circuit area according to another embodiment of the present invention;
fig. 7 is a schematic diagram of a multi-row arrangement of input terminals in a circuit region according to another embodiment of the present invention.
Reference numerals
10 display panel
100 substrate
A display area
B circuit area
C the first subregion
D second subregion
200 input terminal
210 first input terminal
220 second input terminal
300 integrated circuit
Detailed Description
The following examples of the present invention are described in detail, and it will be understood by those skilled in the art that the following examples are intended to illustrate the present invention, but should not be construed as limiting the present invention. Unless otherwise indicated, specific techniques or conditions are not explicitly described in the following examples, and those skilled in the art may follow techniques or conditions commonly employed in the art or in accordance with the product specifications.
In one aspect of the present invention, a display panel is provided.
According to an embodiment of the present invention, referring to fig. 3, the display panel 10 includes a substrate 100 and a plurality of input terminals 200; wherein, a display area a and a circuit area B are defined on the substrate 100, and the circuit area B is disposed at one side of the display area a; the plurality of input terminals 200 are disposed in the circuit region B, the plurality of input terminals 200 are arranged at intervals along a first direction, and the plurality of input terminals 200 are arranged in the circuit region B in a plurality of rows along a second direction, and the first direction and the second direction are arranged to intersect. In some embodiments of the present invention, the first direction and the second direction may be vertically disposed, such that the first direction is a row direction and the second direction is a column direction.
The present invention finds that the Width W of the circuit area B of the display panel 10 mainly depends on the resolution, the Width of the display panel 10, the Width of the flexible printed circuit (FOP), and the size of the Integrated Circuit (IC), wherein the higher the resolution and the more the signal lines are, the more the number of the input terminals 200 is, the wider the circuit area B Width (Tail Width) within a certain range, the narrower the lower frame is, and the IC bound (Bonding) on the circuit area B occupies a certain space.
At present, the width of the circuit area of the display panel is mainly limited by the width of FOP, generally, the input end (pin)200 adopts a one-line arrangement design mode, including pins of 200-300 flexible circuit boards and IC (OLB) connecting lines, pins of 100 scanning circuit array (GOA) signals and test signals on two sides, pins of multilayer metal network touch control (FMLOC) signals and pins avoiding 30-40 fingerprint holes on 80 panels, and according to the IC width of 28-33 mm, the pitch (pitch) of the pins of 0.1-0.12 mm and the marking width of each of two sides of 2mm, the width W of the circuit area B is estimated0＝Max[(0.1～0.12)*(200～300)or(28～33)]+(0.1～0.12)*[100+80+(30～40)]+2*2＝53～66.4mm。
However, the width of the display panel 10 is 60-70 mm, and the left-right bending dimension is 6-10 mm, so the width of the circuit region B is required to be 46-54 mm, which cannot be satisfied by the design of the input terminals 200 distributed along a single row. Therefore, the present invention splits the plurality of input terminals 200 in the circuit region B into two or more rows, which can effectively reduce the width W of the circuit region B, thereby facilitating the fabrication of a display panel with four curved sides.
The specific number of the input terminals 200 is not particularly limited according to the embodiment of the present invention, and those skilled in the art can select the number accordingly according to the actual functional design of the display panel. It should be noted that fig. 2 to 7 only show 18 input terminals 20 as an illustration, and the number of actual input terminals 200 may be adjusted.
In some embodiments of the present invention, referring to fig. 4, the plurality of input ends 200 may be arranged in two rows, and the input ends 200 in two adjacent rows may be arranged in a staggered manner, that is, the input end 200 in the first row may be disposed in the middle of the two input ends 200 in the second row, so that the input ends 200 in two adjacent rows arranged in a staggered manner facilitate connection and routing design of signal lines. In some specific examples, the pitch P of two adjacent input terminals 200 in the first direction may be 0.15-0.18 mm, and thus, compared with the conventional pitch of 0.1-0.12 mm, the pitch P may be increased to 1.5 times, so that the routing space of the signal lines is larger, and the manufacturing yield of the display backplane is higher.
In other embodiments of the present invention, the circuit region B may include one first sub-region C and two second sub-regions D, wherein the two second sub-regions D and the one first sub-region C are alternately arranged along the first direction; and, the plurality of input terminals 200 are arranged in a plurality of rows in the second direction in the second subregion D. Thus, the input terminals for the OLB wiring are all arranged in the first subregion C, and the input terminals for the GOA, FMLOC signals, etc. are all arranged in a plurality of rows in the second subregion, thereby realizing the division arrangement of the input terminals according to the function.
According to an embodiment of the present invention, referring to fig. 5, the display panel 10 may further include an Integrated Circuit (IC)300, and the IC 300 is disposed in the circuit region B and between the display region a (not shown in fig. 5) and the first sub-region C; and, the plurality of input terminals 200 are arranged in a single row along the second direction in the first subregion C. Therefore, the input end 200 of the OLB connecting line in the first subregion C is arranged according to the original single-row arrangement mode, the accurate design of the wiring of the signal transmission of the IC and the FOP can be ensured, the MFPC is changed from the original rectangular design into the U-shaped design, the space of the circuit region B can be fully utilized, and the lightening and thinning of the display device are facilitated.
In some embodiments of the present invention, referring to fig. 6, the plurality of inputs may include a plurality of first inputs 210 and a plurality of second inputs 220; wherein the plurality of first input ends 210 are disposed in the first subregion C, and the plurality of first input ends 210 are arranged in a single row along the second direction; the plurality of second input terminals 220 are disposed in the second subregion D, and the plurality of second input terminals 220 are arranged in a plurality of rows along the second direction. In this way, the first input terminals 210 for OLB connection are arranged in the first sub-area C in the original single-row arrangement, and the second input terminals 220 for GOA, FMLOC signals, etc. in the second sub-area D are changed to two or more rows, so that the main portions of the circuit area B are bound in one row and the left and right sub-portions are added to the multi-row binding. The change of the design can correspondingly increase the number of input ends under the condition of ensuring the binding precision and not increasing the width of the circuit area, thereby being beneficial to the achievement of high-resolution display design of the display panel and touch schemes such as FMLOC and the like; or, the width W of the circuit region B is reduced without increasing the number of input terminals, thereby facilitating the fabrication of a display panel with four-sided bending.
In some embodiments of the present invention, the pitch P of two adjacent second input terminals 220 in the first direction2The distance P between two adjacent first input ends 210 in the first direction can be 0.1-0.18 mm1Can be 0.15 ~ 0.18mm, like this, through setting up a plurality of second input 220 in the second subregion D to multirow and arranging, under the unchangeable condition of total number of input, can make the input increase to 1.5 times with conventional 0.1 ~ 0.12mm interval at most to make the line space of signal line in first subregion C bigger, and then make the preparation yields of display backplate higher, and, still can effectively reduce IC and FOP's OLB wiring resistance. In some specific examples, the pitch P between two adjacent second input terminals 2202Can be 0.1-0.12 mm, and the adjacent two first input ends 210 are in the first directionPitch P1It may be 0.15-0.18 mm, so that the distance between the first input ends 210 is sufficiently ensured to be increased, while the distance between the second input ends 220 is not changed, so that the width W of the circuit area B on the display panel can be made narrower.
In other embodiments of the present invention, referring to fig. 7, the plurality of second input ends 220 in the second sub-area D may also adopt more than two rows of arrangements, specifically, for example, four rows of arrangements, and the second input ends 220 in two adjacent rows may be arranged in a staggered manner, so that the width W of the circuit area B on the display panel may be further narrowed under the condition that the total number of the input ends is not changed, thereby being more beneficial to manufacturing the display panel with four curved surfaces.
In some embodiments of the present invention, the material forming the substrate 100 may be a flexible material, and thus, by using the flexible substrate, the manufactured circuit region B may be bent to the back of the display panel 10 during assembly, so that the lower frame of the display panel 10 is narrower, and the design trend of narrow frame or four-sided bending of the display panel is facilitated.
In summary, according to the embodiments of the present invention, the present invention provides a display panel, in which a plurality of input terminals disposed in a circuit region are designed to be in a multi-row design, so that the width of the circuit region can be reduced, and thus the display panel can be manufactured in a four-sided bending manner, or the number of input terminals can be increased without increasing the width of the circuit region, and thus the display panel can be designed in a high resolution manner.
In another aspect of the invention, a display device is provided. According to an embodiment of the invention, the display device comprises the display panel.
According to the embodiment of the present invention, the specific type of the display device is not particularly limited, and any type of display device commonly used in the art may be used, such as a display screen, a mobile phone, a full-color computer, or a wearable device, and the like. It should be noted that the display device includes other necessary components and structures besides the display panel, taking the AMOLED display as an example, specifically, such as a cover plate, a touch panel, a power supply, a housing, and the like, and those skilled in the art can supplement the components and structures according to the specific use requirements of the display device, and details are not described herein.
In summary, according to the embodiments of the present invention, the present invention provides a display device, wherein the width of the circuit region of the display panel is narrower or the number of input terminals on the circuit region is greater, so that the yield of four-sided bending of the display device is higher or the resolution of the display device is higher. It will be appreciated by those skilled in the art that the features and advantages described above for the display panel are still applicable to the display device and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A display panel, comprising:
the display device comprises a substrate, a first circuit layer and a second circuit layer, wherein a display area and a circuit area are limited on the substrate, and the circuit area is arranged on one side of the display area;
a plurality of input terminals disposed in the circuit region and arranged at intervals along a first direction, and arranged in a plurality of rows along a second direction in the circuit region, and the first direction and the second direction are arranged to intersect;
the circuit region comprises a first subregion and two second subregions, wherein the two second subregions and the first subregion are alternately arranged along a first direction; and the plurality of input ends are arranged in a plurality of rows in the second subregion along a second direction; the input ends of two adjacent rows are arranged in a staggered manner;
an integrated circuit disposed in a circuit region and between the display region and the first sub-region; and the plurality of input ends are arranged in a single row along the second direction in the first subregion.
2. The display panel according to claim 1, wherein the distance between two adjacent input ends in the first direction is 0.15-0.18 mm.
3. The display panel of claim 1, wherein the plurality of inputs comprise:
a plurality of first input terminals disposed in the first subregion and arranged in a single row along a second direction;
a plurality of second input terminals disposed in the second subregion and arranged in a plurality of rows along a second direction.
4. The display panel according to claim 3, wherein the distance between two adjacent second input ends in the first direction is 0.1-0.18 mm.
5. The display panel according to claim 4, wherein the distance between two adjacent first input ends in the first direction is 0.15-0.18 mm.
6. The display panel according to claim 1, wherein a material forming the substrate is a flexible material.
7. A display device comprising the display panel according to any one of claims 1 to 6.
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| CN109451660A (en) * | 2018-12-28 | 2019-03-08 | 厦门天马微电子有限公司 | Display panel, flexible circuit board and display module |
| CN110174968A (en) * | 2019-05-24 | 2019-08-27 | 武汉天马微电子有限公司 | A kind of display device |
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| CN110689847A (en) | 2020-01-14 |
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