Display device and display panel

Patent metadata

Field	Value
Publication number	US-2016170249-A1
Application number	US-201514965294-A
Country	US
Kind code	A1
Filing date	Dec 10, 2015
Priority date	Dec 11, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

Disclosed are a display panel and a display device that have a small step difference in order to reduce possibility of occurrence of defects, such as damages or cracks, during a scribe process.

First claim

What is claimed is:

1 . A display device comprising:
a display panel that includes a first substrate, a second substrate, a sealant for bonding the substrates, and a flattening layer positioned on the first substrate and opened in an area where the sealant is present; a source driver integrated circuit attached to one side of the first substrate and electrically connected with data lines disposed on the first substrate; and a flexible printed circuit attached to one side of the first substrate and electrically connected with the source driver integrated circuit.

2 . The display device according to claim 1 , wherein a pad area where the flexible printed circuit and the source driver integrated circuit are disposed and an edge area including from an edge point in a non-pad area to a point apart by a predetermined distance from the edge point in the display panel is a flattening layer open area where the flattening layer is opened.

3 . The display device according to claim 2 , wherein a thickness difference between the pad area and the edge area is equal to or lower than a maximum value in an error tolerance range for a scribe process.

4 . The display device according to claim 1 , wherein the flattening layer is a layer formed of photo acryl (PAC).

5 . The display device according to claim 1 , wherein the flattening layer is not present between the first substrate and the sealant.

6 . The display device according to claim 5 , wherein the flattening layer is positioned in an inward direction from the area where the sealant is present.

7 . A display panel comprising:
a first substrate; a second substrate facing the first substrate; a sealant that bonds the first and second substrates; and a flattening layer positioned on the first substrate and opened in an area where the sealant is present.

8 . The display panel according to claim 7 , wherein a pad area where a flexible printed circuit and a source driver integrated circuit are disposed and an edge area including from an edge point in a non-pad area to a point apart by a predetermined distance from the edge point in the display panel is a flattening layer open area where the flattening layer is opened.

9 . The display panel according to claim 8 , wherein a thickness difference between the pad area and the flattening layer open area is equal to or lower than a maximum value in an error tolerance range for a scribe process.

10 . The display panel according to claim 1 , wherein the flattening layer is not present between the first substrate and the sealant.

11 . A display panel comprising:
a first substrate; a second substrate facing the first substrate; a sealant that bonds the first and second substrates; and a flattening layer positioned on the first substrate and opened in an edge area including from an edge point of the first substrate to a point inwardly apart by a predetermined distance from the edge point.

Assignees

• Lg Display Co Ltd

Inventors

• Lee Dongjoo

Classifications

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02F1/1341

  Filling or closing of cells · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/133

  Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36) · CPC title

• G02F1/1333 Primary

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title