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Terminal connection structure and display device

A terminal connection and structure technology, applied in the direction of connection, identification device, fixed connection, etc., can solve the problems of unstable connection state, connection reliability problems, fluidity, uneven filling amount and other problems of different-directional conductive tapes, so as to ensure Connection reliability, high connection reliability, effect of reducing effective resistance

Inactive Publication Date: 2018-12-21
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the display device described in the above-mentioned Patent Document 1, although pads for FPC mounting are provided with a width wider than that of other wiring pads, in this way, due to the existence of a gap between each pad and each terminal on the flexible substrate The fluidity and filling amount of the anisotropic conductive tape are not uniform, and the connection state of the anisotropic conductive tape becomes unstable. As a result, there is a possibility of problems in connection reliability.

Method used

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  • Terminal connection structure and display device
  • Terminal connection structure and display device
  • Terminal connection structure and display device

Examples

Experimental program
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Embodiment approach 1

[0049] use Figure 1 to Figure 11 Embodiment 1 of the present invention will be described. In the present embodiment, the terminal connection structure between the liquid crystal panel 11 and the flexible substrate 13 included in the liquid crystal display device 10 is shown as an example. In addition, a part of each drawing shows an X-axis, a Y-axis, and a Z-axis, and it draws so that each axis direction may become the direction shown in each drawing. In addition, for the up-down direction, take figure 2 etc. as a reference, and the upper side in the same figure as the front side and the lower side in the same figure as the back side.

[0050] Such as figure 1 as well as figure 2 As shown, the liquid crystal display device 10 includes: a liquid crystal panel (display panel) 11; a driver (panel drive unit, mounting part) 21, which drives the liquid crystal panel 11; a control circuit board (external signal supply source) 12, which faces each other from the outside. Vari...

Embodiment approach 2

[0077] use Figure 12 Embodiment 2 of the present invention will be described. In the second embodiment, an embodiment in which the arrangement of the terminal connection portion 132 is changed is shown. In addition, repeated descriptions of the same configurations, actions, and effects as those of the first embodiment will be omitted.

[0078] Such as Figure 12 As shown, the terminal connection portion 132 of this embodiment connects the front end portion 130a2 of the adjacent divided large flexible substrate side terminal 130a in the large flexible substrate side terminal portion 130, which is closer to the base end than the front end portion 130a3 (closer to the base end). Signal supply source, close to the upstream) part of the way to set. The front end portion 130a3 of the front end portion 130a2 of each divided large flexible substrate side terminal 130a has almost the same width as the base end portion 130a1, and is a non-expanded portion. That is, the front end si...

Embodiment approach 3

[0081] use Figure 13 Embodiment 3 of the present invention will be described. In this third embodiment, an embodiment in which the shape of the front-end side portion 232a2 of the divided large flexible board side terminal 230a is changed from the first embodiment described above is shown. In addition, repeated descriptions of the same configurations, actions, and effects as those of the first embodiment will be omitted.

[0082] Such as Figure 13 As shown, in the large flexible substrate side terminal portion 230 of this embodiment, the width of the front end portion 230a2 of each divided large flexible substrate side terminal 230a becomes wider from the base end side to the front end side. Specifically, among the three divided large flexible substrate side terminals 230a constituting the large flexible substrate side terminal portion 230, the front end side portions 230a2 of a pair of divided large flexible substrate side terminals 230a located at both ends in the arrang...

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Abstract

A terminal connection structure is provided with: a large panel-side terminal part (high-resistance terminal part) 28 that has a relatively high electric resistance; and a large flexible substrate-side terminal part (low-resistance terminal part) 30 that is connected to the large panel-side terminal part 28 and has a relatively low electric resistance, said large flexible substrate-side terminal part at least having a plurality of divided large flexible substrate side terminals (divided low-resistance terminals) 30a that are arranged in a row with spaces therebetween, wherein the width of a tip-side portion 30a2 is large relative to a base end-side portion 30a1.

Description

technical field [0001] The present invention relates to a terminal connection structure and a display device. Background technique [0002] Conventionally, a display device described in Patent Document 1 below is known as an example of a display device including a connection structure for connecting a flexible substrate to a display panel. In the display device described in this patent document 1, a driver IC with a built-in charge pump power supply is mounted on a display panel, and the wiring connected to the driver IC is connected to the FPC mounting pad of the connection wiring for driving the built-in power supply. The width of the pad is wider than that of other traces. In addition, in the terminal array of the FPC mounting pad, the interval between some terminals is set wider than the interval between other terminals, so that the wiring route from the pad to the driver IC is shortened. The terminals on the flexible substrate side that are electrically connected by p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/14G02F1/1345G09F9/00G09F9/30H01R12/62
CPCG02F1/1345H01R12/62H01R4/04H05K1/148H05K3/323H05K2201/094H05K2201/09445H05K2201/0979H05K1/118H05K2201/056H05K2201/10136H05K2201/10977G02F1/13452G02F1/13454G02F1/13458H05K1/147H05K2201/041
Inventor 清水行男塩田素二青田圭司
Owner SHARP KK
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