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US 2010/0149477 A1Published application
Liquid crystal display device
AssigneeHitachi Displays, Ltd.
InventorTakahiro NAGAMI
Life of this patent
Estimating the term…
Abstract
In a seal portion of a liquid crystal display device, column spacers are formed on a counter substrate side, organic passivation films are formed so as to face the column spacers on a TFT substrate side, and the gap between the TFT substrate and the counter substrate is controlled by the column spacers and the organic passivation films. A sealing material covers the column spacers and the organic passivation films and is in contact with an inorganic film formed on the TFT substrate on the TFT substrate side. Therefore, the adhesive force of the sealing material is improved to ensure the reliability of the seal portion.
Claims15
A liquid crystal display device comprising:
- a TFT substrate having pixels each including a pixel electrode and a TFT formed in a matrix to form a display region;
- a counter substrate having color filters formed corresponding to the pixels and facing the TFT substrate via a seal portion formed at the peripheries of the substrates;
- and liquid crystal interposed between the TFT substrate and the counter substrate, wherein
- the TFT is covered with an inorganic passivation film and an organic passivation film,
- the gap between the TFT substrate and the counter substrate is defined in the seal portion by column spacers formed on the counter substrate and island-like organic passivation films formed on the TFT substrate, and
- in the seal portion, a sealing material covers the column spacers and the organic passivation films formed like islands and is in contact with the inorganic passivation film on the TFT substrate side.
3 more elements
A liquid crystal display device comprising:
- a TFT substrate having pixels each including a pixel electrode and a TFT formed in a matrix to form a display region;
- a counter substrate having color filters formed corresponding to the pixels and facing the TFT substrate via a seal portion formed at the peripheries of the substrates;
- and liquid crystal interposed between the TFT substrate and the counter substrate, wherein
- the TFT is covered with an inorganic passivation film and an organic passivation film, a counter electrode is formed on the organic passivation film, an inter-layer insulating film is formed on the counter electrode, the pixel electrode is formed on the inter-layer insulating film,
- the gap between the TFT substrate and the counter substrate is defined in the seal portion by column spacers formed on the counter substrate and island-like organic passivation films formed on the TFT substrate, and
- in the seal portion, a sealing material covers the column spacers and the organic passivation films formed like islands and is in contact with the inter-layer insulating film on the TFT substrate side.
3 more elements
A liquid crystal display device comprising:
- a TFT substrate having pixels each including a pixel electrode and a TFT formed in a matrix to form a display region;
- a counter substrate having color filters formed corresponding to the pixels and facing the TFT substrate via a seal portion formed at the peripheries of the substrates;
- and liquid crystal interposed between the TFT substrate and the counter substrate, wherein
- the TFT is covered with an inorganic passivation film,
- in the seal portion, first scanning line lead wires and second scanning line lead wires are formed indifferent layers on the TFT substrate,
- the gap between the TFT substrate and the counter substrate is defined in the seal portion by column spacers formed on the counter substrate,
- in the seal portion, a sealing material covers the column spacers and is in contact with the inorganic passivation films on the TFT substrate side.
4 more elements
A liquid crystal display device comprising:
- a TFT substrate having pixels each including a pixel electrode and a TFT formed in a matrix to form a display region;
- a counter substrate having color filters formed corresponding to the pixels and facing the TFT substrate via a seal portion formed at the peripheries of the substrates;
- and liquid crystal interposed between the TFT substrate and the counter substrate, wherein
- the TFT is covered with an inorganic passivation film, a counter electrode is formed on the inorganic passivation film, an inter-layer insulating film is formed on the counter electrode, the pixel electrode is formed on the inter-layer insulating film,
- in the seal portion, first scanning line lead wires and second scanning line lead wires are formed in different layers on the TFT substrate,
- the gap between the TFT substrate and the counter substrate is defined in the seal portion by column spacers formed on the counter substrate, and
- in the seal portion, a sealing material covers the column spacers and is in contact with the inter-layer insulating film on the TFT substrate side.
4 more elements
Dependencies are inferred from the claim text.