CN109378306B - Display and terminal structure of display - Google Patents
Display and terminal structure of display Download PDFInfo
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- CN109378306B CN109378306B CN201811466891.4A CN201811466891A CN109378306B CN 109378306 B CN109378306 B CN 109378306B CN 201811466891 A CN201811466891 A CN 201811466891A CN 109378306 B CN109378306 B CN 109378306B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
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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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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Abstract
A display, comprising: a display panel including a plurality of first connection terminals; the chip on film comprises a plurality of second connecting terminals which are electrically connected with the first connecting terminals; at least one side edge of at least one first connecting terminal is provided with at least one concave shape, at least one side edge of at least one second connecting terminal is limited with at least one convex shape, and the concave shape is complementary with the convex shape.
Description
Technical Field
The invention relates to the technical field of displays, in particular to a display and a terminal structure of the display, which reduce the bonding yield of terminals of the display.
Background
With the continuous progress and development of display technology, Organic Light Emitting Diodes (OLEDs) are regarded as high-end display technologies by various companies. However, due to the particularity of the OLED process, the production yield is low, and the yield is increased, which is a serious problem for the mass production of various companies. The Bonding process is to realize the electrical connection between the display panel and the flexible Circuit board (FPC) through Anisotropic Conductive Film (ACF), as shown in fig. 1, the design of the Circuit in the terminal area 15 of the display panel 16 may directly affect the yield of Bonding; the higher the resolution of the product, the denser the terminal lines 10 and 20 are, the smaller the pitch between the terminals for a high resolution product, and the higher the accuracy requirement for bonding, the short circuit is likely to occur during bonding, which causes poor bonding.
As shown in fig. 2, in the conventional terminal structure for bonding, the width of each of the terminals 10 and 20 is n, the distance between the center of each terminal is a, and the distance between each terminal edge and the adjacent terminal edge is b. When the resolution of the product is higher, the number of the terminals is larger, the b value is smaller, the requirement on the bonding precision is higher, and if the precision control is not good, the terminals 10 and 20 are easy to short circuit, so that the product yield is reduced. The terminal is offset by a distance m when bonded. In order to prevent short-circuiting between adjacent terminals when bonding, the offset distance m must be smaller than the distance b between the terminal edge and the adjacent terminal edge. When m is greater than b, short circuit between the adjacent terminals 10 and 20 is caused, so that the product yield is reduced.
Therefore, it is desirable to produce a display and a terminal structure of the display, which can improve the bonding yield.
Disclosure of Invention
The invention aims to provide a terminal structure for a display and the display, which increase effective and safe terminal offset distance, reduce the risk of short circuit and improve the bonding yield of the terminal.
To solve the above technical problem, the present invention provides a display device, including:
a display panel including a plurality of first connection terminals;
the chip on film comprises a plurality of second connecting terminals which are electrically connected with the first connecting terminals;
at least one side edge of at least one first connecting terminal is provided with at least one concave shape, at least one side edge of at least one second connecting terminal is limited with at least one convex shape, and the concave shape is complementary with the convex shape.
According to one embodiment of the invention, the recessed depth g of the recessed shape is equal to the protruding length g of the protruding shape, while the width c of the recessed shape is equal to or larger than the width f of the protruding shape.
According to an embodiment of the present invention, both side edges of at least one of the first connection terminals are provided with a plurality of concave shapes, and both side edges of at least one of the second connection terminals are defined with a plurality of convex shapes.
According to an embodiment of the present invention, both side edges of each of the first connection terminals are provided with two rectangular recess shapes, and both side edges of each of the second connection terminals are defined with two rectangular protrusion shapes.
According to an embodiment of the present invention, the plurality of first connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the plurality of first connection terminals is b; the plurality of second connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the plurality of second connection terminals is also b, wherein a maximum effective safe offset distance M is b + g, and in the case where the offset distance of the first connection terminal with respect to the second connection terminals is less than the maximum effective safe offset distance M, no short circuit occurs.
According to an embodiment of the invention, the at least one protruding shape and the at least one recessed shape are circular, elliptical, rectangular, triangular, quadrangular, pentagonal or hexagonal.
The present invention also provides a display comprising:
a display panel including a plurality of first connection terminals;
the chip on film comprises a plurality of second connecting terminals which are electrically connected with the first connecting terminals; at least one side edge of at least one first connecting terminal is provided with at least one protruding shape, at least one side edge of at least one second connecting terminal is limited with at least one concave shape, and the protruding shape is complementary with the concave shape.
According to one embodiment of the invention, the protruding length g of the protruding shape is equal to the recessed depth g of the recessed shape, while the width f of the protruding shape is equal to or smaller than the width c of the recessed shape.
According to an embodiment of the present invention, both side edges of at least one of the first connection terminals are provided with a plurality of protruding shapes, and both side edges of at least one of the second connection terminals are defined with a plurality of recessed shapes.
According to an embodiment of the present invention, both side edges of each of the first connection terminals are provided with two rectangular protruding shapes, and both side edges of each of the second connection terminals are defined with two rectangular recessed shapes.
According to an embodiment of the present invention, the plurality of first connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the plurality of first connection terminals is b; the plurality of second connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the plurality of second connection terminals is also b, wherein a maximum effective safe offset distance M is b + g, and in the case where the offset distance of the first connection terminal with respect to the second connection terminals is less than the maximum effective safe offset distance M, no short circuit occurs.
According to an embodiment of the invention, the at least one protruding shape and the at least one recessed shape are circular, elliptical, rectangular, triangular, quadrangular, pentagonal or hexagonal.
In the display and the terminal structure of the display, the first connecting terminal and the second connecting terminal with complementary terminal edge shapes are adopted, so that the effective and safe terminal offset distance is increased, short circuit is avoided, the risk of short circuit is reduced, and the bonding yield of the terminals is improved.
Drawings
The invention described herein, by way of example only, with reference to the accompanying drawings, wherein:
fig. 1 shows a structure diagram of a display panel and a terminal area in the prior art and a structure diagram of a terminal area on top of a Chip On Film (COF) package.
Fig. 2 shows a schematic diagram showing relative positions of a panel terminal and a COF terminal in the prior art, in the left figure, bonding of the terminals is normal, and in the right figure, the terminals are displaced to cause short-circuiting and bonding abnormality.
FIG. 3 is a block diagram of a display panel and a terminal area and an enlarged view of a terminal of the display panel according to an embodiment of the present invention.
Fig. 4 shows a structure diagram of a terminal area on the top of a Chip On Film (COF) and an enlarged view of a COF terminal according to an embodiment of the invention.
Fig. 5 is a schematic diagram showing the relative positions of the display panel terminals and the COF terminals at maximum offset without causing short-circuit according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Example 1:
referring to fig. 3, a structural diagram of a display panel and a terminal area and an enlarged view of a terminal of the display panel according to an embodiment of the invention are shown. Referring to fig. 4, a structural diagram of a terminal area on top of a Chip On Film (COF) package and an enlarged view of a COF terminal according to an embodiment of the invention are shown
The present invention provides a display, which includes a display panel 160 and a Chip On Film (COF) 250. The display panel 160 has a plurality of display panel terminals 100 in the terminal area 150. The chip on film package 250 is provided with a plurality of COF terminals 200 at a terminal area of a top thereof, wherein an edge of each of the display panel terminals 100 is complementary to an edge of each of the COF terminals 200.
As shown in fig. 3 and 4, in a preferred embodiment, both side edges of each of the display panel terminals 100 are provided with a plurality of concave shapes 101, and both side edges of each of the COF terminals 200 are defined with a plurality of convex shapes 201, wherein the plurality of concave shapes 101 are complementary to the plurality of convex shapes 201. More specifically, the recess depth g of the plurality of recess shapes 101 is equal to the projection length g of the plurality of projection shapes 201, the width c of the plurality of recess shapes 101 is equal to or greater than the width f of the plurality of projection shapes 201, and the distance d between the edges of the plurality of recess shapes 101 is equal to or less than the distance e between the edges of the plurality of projection shapes 201.
Referring to fig. 5, a schematic diagram of relative positions of the display panel terminals and the COF terminals at the maximum offset without causing short circuit according to an embodiment of the invention is shown.
In the embodiment of the present invention, the edges of the display panel terminal 100 and the COF terminal 200 are complementary, and the maximum safe and effective offset distance M at the time of bonding, which is the sum of the distance b between the terminal edge and the adjacent terminal edge and the recess depth g of the recess shape 101 (or the projection length g of the plurality of projection shapes 201), i.e., M ═ b + g, can be increased. Therefore, when the pitch b between the adjacent terminal edges is not changed, the larger the shape depth or length g of the terminal is, the larger the maximum effective and safe offset distance M is, but it is premised that the contact area between the display panel terminal 100 and the COF terminal 200 can be secured to achieve effective bonding.
In another preferred embodiment, both side edges of each of the display panel terminals 100 are provided with a plurality of recessed shapes 101, and both side edges of each of the COF terminals 200 are limited with a plurality of protruding shapes 201, wherein the plurality of recessed shapes 101 are the same as the plurality of protruding shapes 201, and the size of the at least one recessed shape 101 is greater than or equal to the size of the at least one protruding shape 201.
In other possible embodiments, the at least one protrusion shape and the at least one depression shape may be various regular or irregular shapes such as a circle, an ellipse, a rectangular row, a triangle, a quadrangle, a pentagon, a hexagon, and the like.
In another preferred embodiment (not shown), according to an embodiment of the present invention, two sides of each of the display panel terminals are provided with a plurality of protruding shapes, and at least two sides of each of the COF terminals are defined with a plurality of recessed shapes, wherein the plurality of protruding shapes are complementary to the plurality of recessed shapes. More specifically, the protruding lengths of the plurality of protruding shapes are equal to the recessed depths of the plurality of recessed shapes, and the widths of the plurality of protruding shapes are equal to or less than the widths of the plurality of recessed shapes, and the distance between the edges of the plurality of recessed shapes is equal to or less than the distance between the edges of the plurality of protruding shapes.
In another preferred embodiment, the display panel terminals are provided at least at two sides thereof with a plurality of protruding shapes, and the COF terminals are defined at two sides thereof with a plurality of recessed shapes, wherein the plurality of protruding shapes are the same as the plurality of recessed shapes, and the size of the plurality of protruding shapes is smaller than or equal to the size of the plurality of recessed shapes.
In other possible embodiments, the at least one protrusion shape and the at least one depression shape are circular, elliptical, rectangular, triangular, quadrilateral, pentagonal, and hexagonal.
Example 2:
the present invention also provides a terminal structure for a display, comprising: a plurality of display panel terminals 100; and includes a plurality of COF terminals 200. The plurality of display panel terminals 100 are disposed in a terminal area 150 of a display panel 160. The plurality of COF terminals 200 are disposed at terminal areas on the top of a chip on film package 250. Wherein an edge of each of the display panel terminals 100 is complementary to an edge of each of the COF terminals 200. As for other specific parts, the same as the display panel terminal 100 and the COF terminal 200 of the display described in example 1, please refer to the above description and the contents of fig. 3 to 5, which are not repeated herein.
In summary, in the display and the terminal structure of the display according to the present invention, the terminal offset distance of the terminal is increased effectively and safely without short circuit by the display panel terminal and the COF terminal whose terminal edge shapes are complementary, thereby reducing the risk of short circuit and improving the yield of terminal bonding.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A display, characterized by: the display includes:
a display panel including a plurality of first connection terminals;
the chip on film comprises a plurality of second connecting terminals which are electrically connected with the first connecting terminals;
at least one side edge of at least one first connecting terminal is provided with at least one concave shape, at least one side edge of at least one second connecting terminal is limited with at least one convex shape, and the concave shape is complementary with the convex shape.
2. The display of claim 1, wherein:
the recessed shape has a recessed depth g equal to a protruding length g of the protruding shape, and a width c equal to or greater than a width f of the protruding shape.
3. The display of claim 1, wherein:
at least one first connecting terminal is provided with a plurality of concave shapes on both sides, and at least one second connecting terminal is limited with a plurality of protruding shapes on both sides.
4. The display of claim 1, wherein:
two rectangular concave shapes are arranged on two side edges of each first connecting terminal, and two rectangular protruding shapes are limited on two side edges of each second connecting terminal.
5. The display of claim 1, wherein:
the plurality of first connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the plurality of first connection terminals is b; the second connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the second connection terminals is also b, wherein a maximum effective safe offset distance M is b + g, and the offset distance at the first connection terminal with respect to the second connection terminal is smaller than the maximum effective safe offset distance M.
6. The display of claim 1, wherein: the at least one protrusion and the at least one depression are circular, elliptical, triangular, quadrilateral, pentagonal or hexagonal in shape.
7. A display, characterized by: the display includes:
a display panel including a plurality of first connection terminals;
the chip on film comprises a plurality of second connecting terminals which are electrically connected with the first connecting terminals;
at least one side edge of at least one first connecting terminal is provided with at least one protruding shape, at least one side edge of at least one second connecting terminal is limited with at least one concave shape, and the protruding shape is complementary with the concave shape.
8. The display of claim 7, wherein:
the protruding length g of the protruding shape is equal to the recessed depth g of the recessed shape, and the width f of the protruding shape is equal to or less than the width c of the recessed shape.
9. The display of claim 7, wherein:
at least one of the first connection terminals has a plurality of protruding shapes formed on both side edges thereof, and at least one of the second connection terminals has a plurality of recessed shapes formed on both side edges thereof.
10. The display of claim 7, wherein:
the plurality of first connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the plurality of first connection terminals is b; the second connection terminals are arranged in parallel with each other, and the spacing distance between the edges of the second connection terminals is also b, wherein a maximum effective safe offset distance M is b + g, and the offset distance at the first connection terminal with respect to the second connection terminal is smaller than the maximum effective safe offset distance M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466891.4A CN109378306B (en) | 2018-12-03 | 2018-12-03 | Display and terminal structure of display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811466891.4A CN109378306B (en) | 2018-12-03 | 2018-12-03 | Display and terminal structure of display |
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| CN109378306A CN109378306A (en) | 2019-02-22 |
| CN109378306B true CN109378306B (en) | 2020-03-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4154410B2 (en) * | 2005-08-22 | 2008-09-24 | 富士通株式会社 | Manufacturing method of semiconductor device |
| CN103094737A (en) * | 2011-11-05 | 2013-05-08 | 宝宸（厦门）光学科技有限公司 | Pin structure and pin connecting structure |
| CN103367947A (en) * | 2012-04-10 | 2013-10-23 | 宸鸿科技(厦门)有限公司 | Connection structure |
| KR20130141880A (en) * | 2012-06-18 | 2013-12-27 | (주)인터플렉스 | Moveless bezel single layer sensor panel |
| CN106155395A (en) * | 2015-04-12 | 2016-11-23 | 宝宸（厦门）光学科技有限公司 | Contact panel and connected structure thereof |
| CN106842735B (en) * | 2017-04-05 | 2019-10-25 | 深圳市华星光电半导体显示技术有限公司 | Panel pin configuration and liquid crystal display device for bonding flip chip pin |
| CN107221770A (en) * | 2017-05-10 | 2017-09-29 | 武汉华星光电技术有限公司 | Connector, the preparation method of connector, connection component and panel assembly |
| CN108538893B (en) * | 2018-04-19 | 2020-10-02 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device thereof |
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