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US 10,884,279 B2Granted
Liquid crystal display device
AssigneesMitsubishi Electric Corporation, Geomatec Co., Ltd.
InventorsYukihiro Kudo, Takashi Miyayama, Chihaya Miyoshi
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AssigneesMitsubishi Electric Corporation, Geomatec Co., Ltd.
InventorsYukihiro Kudo, Takashi Miyayama, Chihaya Miyoshi
Estimating the term…
A laminated film is provided between a transparent conductive film and a counter substrate so that the laminated film is in contact with the transparent conductive film and the counter substrate. The laminated film includes a first low refractive index layer, a first high refractive index layer, a second low refractive index layer, and a second high refractive index layer. In the direction from the transparent conductive film toward the counter substrate, the first low refractive index layer, the first high refractive index layer, the second low refractive index layer, and the second high refractive index layer are provided to exist in order of the first low refractive index layer, the first high refractive index layer, the second low refractive index layer, and the second high refractive index layer. Each of the first low refractive index layer and the second low refractive index layer is made of a first material. The refractive index of light of the first material is in the range of 1.4 to 1.6. Each of the first high refractive index layer and the second high refractive index layer is made of a second material. The refractive index of light of the second material is in the range of 1.9 to 2.1.
A liquid crystal display device comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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Structural association of cells with optical devices, e.g. polarisers or reflectors: antiglare, refractive index matching layers
Constructional arrangements; Manufacturing methods: support structures for LCD panels, e.g. frames or bezels
Filters, e.g. light shielding masks: light shielding layers, e.g. black matrix
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
About 13 years 4 months of term left · ends 12 Feb 2040 (estimated)
The present invention relates to a liquid crystal display device having a configuration in which a transparent protective member provided with a light shielding film having an opening is stuck to the front surface of a liquid crystal panel of a lateral electric field drive system via a transparent adhesive material.
In the liquid crystal panel of the lateral electric field drive system, a voltage is applied in a direction parallel to the main surface of the substrate. The liquid crystal display device of the lateral electric field drive system including the liquid crystal panel of the lateral electric field drive system includes an array substrate and a counter substrate. The array substrate is also referred to as a TFT substrate.
The array substrate is provided with a drive element such as a thin film transistor (TFT), and an electrode. The counter substrate is provided with a color filter or the like. The counter substrate is also referred to as a color filter (CF) substrate. It should be noted that the counter substrate is not provided with any electrode. Therefore, there is a problem that a malfunction occurs in the display of the liquid crystal panel due to the intrusion of an external electric field (static electricity) from the counter substrate side, the charge-up of the front surface of the counter substrate, and the like.
FIG. 1 is an exploded perspective view of a liquid crystal display device according to a first preferred embodiment;
FIG. 2 is a cross-sectional view of the liquid crystal display device taken along line A1-A2 in FIG. 1;
FIG. 3 is a plan view showing a simplified configuration of a light shielding film according to the first preferred embodiment;
Hereinafter, preferred embodiments will be described with reference to the drawings. In the following drawings, the same components are denoted by the same reference numerals. The names and functions of respective components denoted by the same reference numerals are the same. Therefore, a detailed description of a part of each component denoted by the same reference numeral may be omitted.
It should be noted that the dimensions, materials, and shapes of components exemplified in the preferred embodiment, relative arrangements of such components, and the like may be appropriately changed according to the configuration, various conditions, and the like of the device. In addition, the dimensions of each component in the drawings may differ from the actual dimensions.
(Configuration of Liquid Crystal Display Device)