Unlock instant, AI-driven research and patent intelligence for your innovation.

Active matrix substrate, liquid crystal display apparatus waving same, method for mfg of same

An active matrix, liquid crystal display technology, applied in the reinforcement of conductive patterns, printed circuits, instruments, etc., can solve the problems of connection defects, inability to guarantee the contact area of ​​circuit terminals 2 and terminal pads 4, stress concentration, etc.

Inactive Publication Date: 2004-03-24
SHARP KK
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, a sufficient contact area between the line terminal 2 and the terminal pad 4 cannot be secured, thereby increasing the contact resistance, which causes contact resistance between the line terminal 2 and the terminal pad 4, a connection defect between them, Increase in driver installation defects and display defects
[0013] In addition, when a plastic substrate is used as the insulating substrate 1 in the structure having the contact hole 7 in the prior art as described above, when a driver for driving a liquid crystal control panel is installed, due to the insulative substrate 1 The deflection causes stress to concentrate near each corner of a part of the insulating film 13 corresponding to the contact hole 7, thereby causing cracks.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active matrix substrate, liquid crystal display apparatus waving same, method for mfg of same
  • Active matrix substrate, liquid crystal display apparatus waving same, method for mfg of same
  • Active matrix substrate, liquid crystal display apparatus waving same, method for mfg of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Now refer to Figure 1A -1C illustrates the active matrix substrate 9 of Embodiment 1 of the present invention. Figure 1A -1C is an enlarged view showing the signal input terminal 10 of the active matrix substrate 9 of Embodiment 1, wherein Figure 1A for the floor plan, Figure 1B for along Figure 1A The cross-sectional view taken along the line IB-IB in Figure 1C is along the Figure 1A A cross-sectional view taken of the IC-IC line in .

[0057] First, the structure of the active matrix substrate 9 will be described. In the active matrix substrate 9, a gate bus line 14 made of Ti, a source bus line and picture element electrodes made of Ti, TFT, etc. are formed on an insulating substrate 1 made of polyimide or the like. (not shown). At one end of the gate bus 14, there is no signal input terminal 10 connected to the driver. Each signal input terminal 10 has a rectangular shape, and its long side is parallel to the gate bus line 14 . Also, there is no signal...

Embodiment 2

[0078] Now refer to Figure 5A , 5B, 5C to illustrate the active matrix substrate 9 of Embodiment 2 of the present invention. Components common to those of Embodiment 1 in the figure are denoted by the same reference numerals.

[0079] Except that the active matrix substrate 9 of the present embodiment uses different metal layers (for example, a control board metal film and a source metal film, a source metal film and a picture element metal film, or a control board metal film and a picture element metal film) The structure of the active matrix substrate 9 of this embodiment is basically the same as that of the embodiment 1 except for the terminal pads 4 and 6 of the film). In other words, the active matrix substrate 9 of the present embodiment additionally includes the lower terminal pad 6 between the line terminals 2 and the terminal pad 4 as compared with the active matrix substrate of the first embodiment.

[0080] With this structure, even in the case where the metal fi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An active matrix substrate includes: an insulative substrate; an insulating film provided on a layer of line terminals on the insulative substrate and including a contact hole extending in the terminal arrangement direction so that the plurality of line terminals are exposed therethrough; and a plurality of conductive terminal pads provided on a layer of the insulating film on the insulative substrate so as to respectively cover the plurality of line terminals exposed through the contact hole in the insulating film. Signal input terminals are provided, each including one of the line terminals and a corresponding one of the terminal pads.

Description

technical field [0001] The present invention relates to an active substrate including a plurality of spaced signal input terminals connected to a driver, a liquid crystal display device having the substrate, and a method of manufacturing the substrate. Background technique [0002] With the recent advent of the information society, the demand for notebook computers, PDAs (Personal Digital Assistants), car navigation systems, etc. has rapidly increased. Accordingly, research and development of displays (for example, liquid crystal display devices) for these new technologies are actively conducted. Among various forms of displays, liquid crystal display devices are the most widely used. The liquid crystal display device used in the liquid crystal display device drives the electrodes of the picture elements arranged in a matrix pattern to form a display pattern on the screen. Specifically, a voltage is applied between each selected picture element electrode and a sub-electrod...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1345G02F1/1362G02F1/1368H05K1/11H05K3/24
CPCH05K1/117H05K2201/09436H05K3/24G02F1/13458G02F1/1345
Inventor 村井淳人
Owner SHARP KK