Liquid crystal display device
First Claim
1. A display device comprising:
- a first substrate including a thin film transistor and a first protrusion, anda second substrate opposed to the first substrate and including second protrusion;
whereinthe first protrusion includes a top portion facing to a surface of the second substrate,the second protrusion includes a top portion facing to a surface of the first substrate and a convex portion,the top portion of the first protrusion is between the top portion of the second protrusion and the surface of the second substrate, in a cross-sectional view,the top portion of the second protrusion is separated from the surface of the first substrate,the second protrusion has a concave portion surrounded by the convex portion, anda height of the second protrusion at the convex portion is higher than a height of the second protrusion at the concave portion.
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Abstract
A liquid crystal display device includes: a TFT substrate having gate lines and data lines arranged thereon, the gate lines extending in a first direction and arranged in a second direction, the data lines extending in the second direction and arranged in the first direction; a counter substrate having a black matrix and a color filter; and liquid crystals put between the TFT substrate and the counter substrate. Columnar spacers are formed on the counter substrate. Pedestals are formed on portions of the TFT substrate, the portions corresponding to the columnar spacers. A convex portion and a concave portion are present at the top end of the columnar spacer. The pedestal is formed corresponding to the concave portion. The concave portion is opened at the ends thereof and connected to the lateral side of the columnar spacer.
22 Citations
11 Claims
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1. A display device comprising:
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a first substrate including a thin film transistor and a first protrusion, and a second substrate opposed to the first substrate and including second protrusion; wherein the first protrusion includes a top portion facing to a surface of the second substrate, the second protrusion includes a top portion facing to a surface of the first substrate and a convex portion, the top portion of the first protrusion is between the top portion of the second protrusion and the surface of the second substrate, in a cross-sectional view, the top portion of the second protrusion is separated from the surface of the first substrate, the second protrusion has a concave portion surrounded by the convex portion, and a height of the second protrusion at the convex portion is higher than a height of the second protrusion at the concave portion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device comprising:
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a first substrate including a thin film transistor and a first protrusion, and a second substrate opposed to the first substrate and including second protrusion; wherein the second protrusion has a convex portion and a concave portion, the convex portion surrounds the first protrusion, the first protrusion is inside the concave portion, a surface of a top portion of the first protrusion is parallel to a surface of the concave portion, in a cross-sectional view, and a gap is between the convex portion and a surface of the first substrate facing to the convex portion in the cross-sectional view. - View Dependent Claims (8, 9, 10, 11)
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Specification
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- Resources
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Current AssigneeJapan Display Incorporated
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Original AssigneeJapan Display Incorporated
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InventorsTomioka, Yasushi, Kunimatsu, Noboru, Hyodo, Yosuke, Kaneko, Toshiki, Matsumoto, Yuko
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Primary Examiner(s)Nguyen, Sang V
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Application NumberUS16/212,765Publication NumberTime in Patent Office340 DaysField of SearchUS Class CurrentCPC Class CodesG02F 1/1339 Gaskets; Spacers; Sealing o...G02F 1/13394 spacers regularly patterned...G02F 1/13396 Spacers having different sizesG02F 1/13398 Spacer materials; Spacer pr...G02F 1/136286 Wiring, e.g. gate line, dra...G02F 1/1368 in which the switching elem...
