Liquid crystal display panel, method of inspecting the same, and inspection apparatus used for the same
View Patent ↗A liquid crystal display panel including two substrates combined together through a sealing material applied to a peripheral portion thereof. A liquid crystal is sealed between the substrates, and there is a picture-frame area on the substrates, outside a display area and inside a region where the sealing material is formed. A light-shield film is formed in the picture-frame area in the form of a frame surrounding the display area, wherein the light-shield film does not overlap the sealing material. A first conductive film is formed in the picture-frame area on either of the substrates, outside the light-shield film, in the form of a continuously connected frame surrounding the display area and in the same layer as a pixel electrode formed at each pixel in the display area. A second conductive film is formed on the other of the substrates, facing the first conductive film.
1. A liquid crystal display panel comprising:
a pair of substrates combined together through a sealing material continuously applied to an entire peripheral portion thereof;
a liquid crystal sealed between the pair of substrates;
a picture-frame area in a form of a frame provided on the pair of substrates outside a display area and inside a region where the sealing material is formed;
a light-shield film formed in the picture-frame area in a form of a frame surrounding the display area;
a first conductive film formed in the picture-frame area on either of the pair of substrates and outside the light-shield film in a form of a continuously connected frame surrounding the display area and in the same layer with a pixel electrode formed at each pixel in the display area; and
a second conductive film formed on the other of the pair of substrates and facing the first conductive film with the liquid crystal interposed between them.
2. A liquid crystal display panel according to claim 1 , wherein at least one of the first or the second conductive film is electrically isolated from the pixel electrode.
3. A liquid crystal display panel according to claim 1 , further comprising first and second terminal portions provided outside the region where the sealing material is formed and electrically connected to the first and second conductive films, respectively.
4. A liquid crystal display panel comprising:
a pair of substrates combined together through a sealing material continuously applied to an entire peripheral portion thereof;
a liquid crystal sealed between the pair of substrates;
a picture-frame area in a form of a frame provided on the pair of substrates outside a display area and inside a region where the sealing material is formed;
a light-shield film formed in the picture-frame area in a form of a frame surrounding the display area, wherein said light-shield film does not overlap the sealing material;
a first conductive film formed in the picture-frame area on either of the pair of substrates and outside the light-shield film in a form of a continuously connected frame surrounding the display area and in the same layer with a pixel electrode formed at each pixel in the display area; and
a second conductive film formed on the other of the pair of substrates and facing the first conductive film with the liquid crystal interposed between them.
5. A liquid crystal display panel according to claim 4 , wherein at least one of the first or the second conductive film is electrically isolated from the pixel electrode.
6. A liquid crystal display panel according to claim 4 , further comprising first and second terminal portions provided outside the region where the sealing material is formed and electrically connected to the first and second conductive films, respectively.