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Display device

A technology for display devices and display electrodes, which is applied in the fields of nonlinear optics, instruments, optics, etc., and can solve problems such as peeling off of seals, low adhesion, and decreased bonding strength between the first substrate and the second substrate

Active Publication Date: 2013-12-25
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, since the adhesiveness between the sealant and the planarization film made of an organic material is low, the sealant is easily peeled off from the planarization film, and the adhesive strength between the first substrate and the second substrate may decrease.
Moreover, since display devices in recent years tend not only to increase the size of the display screen but also to narrow the frame, and the area where the seal is formed is also reduced, due to the risk caused by the impact of falling, twisting, etc., the sealing has been improved. risk of spalling

Method used

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no. 1 approach

[0022] refer to Figure 1 to Figure 7 The display device 1 in the first embodiment of the present invention will be described.

[0023] The display device 1 includes a liquid crystal panel 2 , a light source device 3 that emits light toward the liquid crystal panel 2 , a first polarizer 4 disposed on the liquid crystal panel 2 , and a second polarizer 5 disposed between the liquid crystal panel 2 and the light source device 3 . .

[0024] The liquid crystal panel 2 in this embodiment adopts a so-called so-called liquid crystal panel that controls the direction of liquid crystal molecules in the liquid crystal layer by generating an electric field between the signal electrode and the common electrode provided on one of the pair of substrates (the second substrate 22). the transverse electric field method. In addition, although the liquid crystal panel 2 in this embodiment employs a transverse electric field system, it is not limited thereto, and may be any system. For exampl...

no. 2 approach

[0072] Figure 8 as well as Figure 9 It is a diagram showing main parts of a display device 1A in the second embodiment.

[0073] The display device 1A differs from the display device 1 in that the second planarizing film 225 has a second opening 225 b in a wiring conductor non-formation region where the wiring conductor 25 is not formed.

[0074] Such as Figure 8 as well as Figure 9 As shown, the second opening 225b is formed in the wiring conductor non-formation region. In the display device 1A, the second openings 225 b formed between the adjacent first openings 225 a are continuously formed along the adjacent wiring conductors 25 .

[0075] And the 2nd opening part 225b is located between the adjacent wiring conductors 25 in planar view. In addition, the width of the second opening 225 b is set within a range of, for example, 10 μm to 100 μm. And, in Figure 9 In , the outer periphery of the first opening 225a is indicated by a thick line. And, in Figure 9 Amo...

no. 3 approach

[0081] Figure 10 It is a diagram showing a display device 1B in the third embodiment.

[0082] The display device 1B differs from the display device 1A in that the first opening 225 a has a tapered shape whose width becomes smaller as it approaches the second main surface 22 a of the second substrate 22 in cross-sectional view.

[0083] Like the display device 1, when the inner wall surface of the first opening 225a is close to a right angle with respect to the first main surface 22a of the second substrate 22, when an inorganic material is formed in the first opening 225a, the presence of the inner wall surface cannot The case where the first inorganic insulating film 26 is formed with a sufficient film thickness.

[0084] In contrast, in the display device 1B, since the first opening 225 a is tapered, the inner wall surface of the first opening 225 a is inclined with respect to the first main surface 22 a of the second substrate 22 . Thereby, it becomes easy to increase t...

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Abstract

This display device is provided with: a first substrate (21) and a second substrate (22) disposed with the inner main surfaces thereof facing each other; a liquid crystal layer disposed between the first substrate (21) and the second substrate (22); a seal material (24) disposed between the first substrate (21) and the second substrate (22) so as to surround the liquid crystal layer and joining the first substrate (21) and the second substrate (22); an organic insulating film (225) provided in a seal forming region (E24) which is located on the inner main surface of the second substrate (22) and in which the seal material (24) is formed, the organic insulating film (225) having an opening (225a) in the seal forming region (E24); and an inorganic insulating film (26) covered with the seal material (24) in such a manner that the seal material (24) are in contact with the inorganic insulating film (26), the inorganic insulating film (26) being provided continuously from the inside of the opening (225a) through the inner wall surface of the opening (225a) to the surface of the organic insulating film (225).

Description

technical field [0001] The present invention relates to a display device used in various applications such as a mobile phone, a digital camera, a portable game machine, or a portable information terminal. Background technique [0002] The display device includes a first substrate and a second substrate arranged to face each other, a liquid crystal layer disposed between these substrates, and a sealing member made of an organic material that joins the first substrate and the second substrate (for example, refer to Japanese Patent Laid-Open 2009-128893 Bulletin). [0003] Furthermore, on the main surface of the second substrate, a plurality of source wirings and a plurality of gate wirings are provided so as to cross each other. Furthermore, a planarizing film made of an organic material is provided to cover the source wiring and the gate wiring. In addition, a display electrode is provided in a region surrounded by a plurality of source wirings and a plurality of gate wirin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G02F1/1341
CPCG02F1/133345G02F1/1339G02F2201/503G02F2202/28G02F1/134372
Inventor 市村照彦酒井英明北村茂树伊藤弘晃
Owner KYOCERA CORP
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