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display panel

A technology for display panels and display areas, applied in the directions of instruments, optics, nonlinear optics, etc., can solve the problems of peeling off of sealing materials, unable to fully obtain the bonding strength of sealing materials to substrates, etc., and achieve the effect of preventing peeling

Active Publication Date: 2021-10-22
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the adhesive strength of the sealing material to the substrate cannot be obtained sufficiently, and the sealing material may be peeled off.

Method used

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Experimental program
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Effect test

no. 1 approach

[0057] according to Figure 1 to Figure 10 The first embodiment of the present invention will be described. In this embodiment, the liquid crystal panel (display panel) 11 included in the liquid crystal display device 10 is exemplified. In addition, X-axis, Y-axis, and Z-axis are shown in part of each drawing, and the direction of each axis is drawn as the direction shown in each drawing. also, image 3 and Figure 8 The upper side of etc. is the front side, and the lower side in this figure is the back side.

[0058] like figure 1 As shown, the liquid crystal display device 10 at least includes: a liquid crystal panel 11, which can display images; a driver (panel drive unit) 12, which drives the liquid crystal panel 11; Various input signals are provided; a flexible substrate (external connection part) 14 is electrically connected to the liquid crystal panel 11 and an external control circuit substrate 13; a backlight device (not shown), which is an external light source...

no. 2 approach

[0085] according to Figure 11 to Figure 14 A second embodiment of the present invention will be described. In this second embodiment, an embodiment in which the configurations of the partition portion 125 and the non-alignment film region NALA are changed is shown. In addition, redundant descriptions of the same configurations, actions, and effects as those of the above-mentioned first embodiment will be omitted.

[0086] like Figure 11 As shown, in the array substrate 111b according to this embodiment, the second interlayer insulating film 122 is provided across almost the entire area of ​​the non-display area NAA except for the alignment film area NALA, and its outer peripheral end is connected to the array substrate 111b. The outer peripheral ends are almost in the same plane. Accordingly, the non-arrangement alignment film region NALA is formed by the concave portion 27 partially recessed by the second interlayer insulating film 122 , and the partition portion 125 is ...

no. 3 approach

[0093] according to Figure 15 or Figure 16 A third embodiment of the present invention will be described. In this third embodiment, an embodiment in which the configuration of the recessed portion 227 is changed based on the second embodiment described above is shown. In addition, redundant descriptions of the same configurations, functions, and effects as those of the above-mentioned second embodiment will be omitted.

[0094] like Figure 15 and Figure 16 As shown, in the second interlayer insulating film 222, the portion on the outer peripheral side of the planarizing film 220 in the non-display area NAA is recessed so as to have a circular shape in plan view, thereby forming the concave portion 227 (not Alignment film area NALA) is arranged. Such a concave portion 227 does not have the island-like portion 28 of the above-mentioned second embodiment (refer to Figure 12 ), therefore, the contact area where the sealing portion 211p is bonded to the array substrate 2...

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PUM

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Abstract

The liquid crystal panel 11 includes: a pair of substrates 11a, 11b; a sealing portion 11p, which is spaced between the pair of substrates 11a, 11b, arranged in the non-display area NAA to surround the liquid crystal layer 11c and seals the liquid crystal layer 11c; The planarization film 20 and the second interlayer insulating film 22, which are arranged on the array substrate 11b, are configured to straddle the form of the display area AA and the non-display area NAA; the orientation film 11o, which is arranged on the array substrate 11b as an insulating film The flattening film 20 and the second interlayer insulating film 22 are closer to the side of the liquid crystal layer 11c, arranged in a form straddling the display area AA and the non-display area NAA; 20 and the second interlayer insulating film 22 are formed and arranged in the non-display region NAA at a position overlapping with the sealing portion 11p to define the non-alignment film region NALA in which the alignment film 11o is not arranged.

Description

technical field [0001] The present invention relates to display panels. Background technique [0002] Conventionally, a liquid crystal panel described in Patent Document 1 below is known as an example of a liquid crystal panel constituting a main part of a liquid crystal display device. In this liquid crystal panel, the substrate and the counter substrate disposed opposite to each other with the liquid crystal layer interposed therebetween are bonded by a sealing material. Columnar spacers are provided to regulate the thickness of these substrate gaps. Inner protrusions are formed along the inner periphery of the sealing material in a range of width / height = 0.5 to 10, and outer protrusions are formed in a range of width / height = 0.5 to 10 along the outer periphery. At least the inner protrusions are formed at the same height as the columnar spacers. Thereby, the liquid crystal cell gap in the panel surface can be made uniform, and the display unevenness can be resolved w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1339
CPCG02F1/1339G02F1/133711G02F2202/28G02F1/136222G02F1/133788G02F1/136286G02F1/1365
Inventor 田中茂树上田亮黑住幸生滨田诚次高桥亮辅
Owner SHARP KK