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Display device

a display device and display technology, applied in the field of display devices, can solve the problems of increasing the area of the picture-frame region, and achieve the effects of reducing the picture-frame region, reducing the deterioration of display quality, and reducing the mounting defects of the connection terminal

Active Publication Date: 2020-08-13
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention offers a liquid crystal display device that can reduce the size of the picture frame while maintaining good display quality and reducing mounting defects of connection terminals.

Problems solved by technology

However, because the number of lead lines increases with an increase in the number of signal lines, a large space may be required to arrange the lead lines, which may result in an increased area of the picture-frame region.

Method used

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first embodiment

[0033]Hereinafter, a first embodiment of the present invention is described with reference to FIGS. 1 to 8.

[0034]The present embodiment is described in relation to a case in which a display device according to an aspect of the present invention is applied as a liquid crystal display device. While the liquid crystal display device according to the present embodiment is preferably used as a display for, for example, mobile telephones, portable information terminals, game machines, digital cameras, printers, car navigation systems, intelligent home appliances, and the like, it should be noted that applications of the liquid crystal display device according to the present embodiment are not particularly limited.

(Overall Construction of Liquid Crystal Display Device)

[0035]FIG. 1 is a perspective view of the liquid crystal display device according to the present embodiment. FIG. 2 is a sectional view taken along tine II-II of FIG. I. FIG. 3 is a plan view of the liquid crystal display dev...

second embodiment

[0096]Next, a second embodiment of the present invention is described with reference to FIGS. 9 to 13.

[0097]A liquid crystal display device according to the second embodiment has substantially the same construction as the above-described first embodiment, but differs from the first embodiment in terms of the construction of the lead lines. Thus, in the second embodiment, only the lead lines are described.

[0098]FIG. 9 is an enlarged view illustrating the lead wiring provided in. the liquid crystal display device according to the second embodiment. FIG. 10 is a sectional view taken along line X-X of FIG. 9. FIG. 11 is a sectional view taken. along line XI-XI of FIG. 9. FIG. 12 is a sectional view taken along line XII-XII of FIG. 9. FIG. 13 is a sectional view taken along line XIII-XIII of FIG. 9.

[0099]In FIGS. 9 to 13, the same component elements as in the figures illustrating the first embodiment are denoted by the same reference numerals and characters as in the figures illustrating...

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Abstract

A display device according to an aspect of the present invention includes a plurality of connection terminals and a plurality of lead lines, and the plurality of lead lines includes first lead lines, second lead lines, and third lead lines. Signal-line-side first lead lines are formed of a first conductive layer, signal-line-side second lead lines are formed of a second conductive layer, and signal-line-side third lead lines are formed of a third conductive layer. A lowest conductive layer of each switching element is formed of the second conductive layer. Among the plurality of lead lines, the connection-terminal-side first lead lines, the connection-terminal-side second lead lines, and the connection-terminal-side third lead lines are formed of conductive layers that include at least the third conductive layer but do not include the first conductive layer.

Description

TECHNICAL FIELD[0001]An aspect of the present invention relates to a display device.[0002]The present application claims priority based on Japanese Patent Application No. 2016-126665, filed in Japan on Jun. 27, 2016, the content of which is incorporated herein by reference.BACKGROUND ART[0003]Recent display devices have been progressing in terms of displaying images with enhanced resolution, and there is a trend of an increased number of signal lines on a substrate of such recent display devices compared with display devices of the related art. In a display device where a semiconductor chip for a driver is mounted on a substrate, lead lines for leading signal lines out to connection terminals connected to the semiconductor chip are provided in a peripheral region surrounding a display region. Further, in the recent display devices, it is desired that the peripheral region (also referred to as picture-frame region) be reduced in width (namely, the picture-frame region be narrowed). H...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02F1/1345G02F1/1362G02F1/1368
CPCG02F1/1345G02F1/13458G02F1/136286G02F1/133345G02F1/13452G09F9/30
Inventor FUJITA, TETSUOCHIKAMA, YOSHIMASAHARA, YOSHIHITONAKATA, YUKINOBU
Owner SHARP KK