Liquid crystal panel substrate, liquid crystal panel, and electronic equipment and projection type display device both using the same
First Claim
1. A substrate having a pixel electrode, comprising:
- a substrate;
a plurality of pixel units, each pixel unit including a pixel electrode useable as a reflective electrode and a switching element electrically connected to the pixel electrode, the pixel units being arranged in a matrix pattern on the substrate, the switching element having a terminal electrode forming a conductive layer, a contact hole provided between the pixel electrode and the conductive layer that electrically connects the pixel electrode and the terminal electrode;
a light-shielding layer having an opening surrounding a portion in which the contact hole is formed and having no opening in regions between adjacent pixel electrodes, the light-shielding layer being formed between the pixel electrode and the conductive layer; and
an underlying insulating layer being formed below the pixel electrodes, and in regions between adjacent pixel electrodes of the plurality of pixel units, a groove having no flat surface on bottom and having a substantially V-shaped surface relative to an upper surface of the underlying insulating layer being formed in regions between adjacent pixel electrodes on a surface of the light-shielding layer under the underlying insulating layer, the V-shaped surface for reflecting obliquely the light vertically incident which enters a space between the pixel electrodes.
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Abstract
The present invention is a liquid crystal panel substrate that comprises: pixel units each having a pixel electrode, to be used as a reflective electrode and arranged in a matrix pattern on a substrate, and a switching element controlling a voltage applied to the pixel electrode; wherein between the pixel electrode and a conductive layer forming a terminal electrode of the switching element, a contact hole is provided for connecting the pixel electrode and the terminal electrode. A light-shielding layer, having an opening surrounding the portion in which the contact hole is formed, and having no opening in regions between a plurality of adjacent pixel electrodes, is formed between the pixel electrode and the conductive layer. Harmful effects due to light leaking through a space between the pixel electrodes can thereby be prevented.
34 Citations
11 Claims
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1. A substrate having a pixel electrode, comprising:
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a substrate;
a plurality of pixel units, each pixel unit including a pixel electrode useable as a reflective electrode and a switching element electrically connected to the pixel electrode, the pixel units being arranged in a matrix pattern on the substrate, the switching element having a terminal electrode forming a conductive layer, a contact hole provided between the pixel electrode and the conductive layer that electrically connects the pixel electrode and the terminal electrode;
a light-shielding layer having an opening surrounding a portion in which the contact hole is formed and having no opening in regions between adjacent pixel electrodes, the light-shielding layer being formed between the pixel electrode and the conductive layer; and
an underlying insulating layer being formed below the pixel electrodes, and in regions between adjacent pixel electrodes of the plurality of pixel units, a groove having no flat surface on bottom and having a substantially V-shaped surface relative to an upper surface of the underlying insulating layer being formed in regions between adjacent pixel electrodes on a surface of the light-shielding layer under the underlying insulating layer, the V-shaped surface for reflecting obliquely the light vertically incident which enters a space between the pixel electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A substrate having a pixel electrode, comprising:
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a substrate;
a plurality of pixel units, each pixel unit including a pixel electrode useable as a reflective electrode and a switching element electrically connected to the pixel electrode, the pixel units being arranged in a matrix pattern on the substrate, the switching element having a terminal electrode forming a conductive layer, a connecting wiring provided between the pixel electrode and the conductive layer that electrically connects the pixel electrode and the terminal electrode;
a light-shielding layer having an opening surrounding a portion in which the connecting wiring is formed and having no opening in regions between adjacent pixel electrodes, the light-shielding layer being formed between the pixel electrode and the conductive layer; and
an underlying insulating layer being formed below the pixel electrodes, and in regions between adjacent pixel electrodes of the plurality of pixel units, a groove defined by a pair of sloping surfaces relative to an upper surface of the underlying insulating layer being formed in regions between adjacent pixel electrodes on a surface of the light-shielding layer under the underlying insulating layer, the pair of sloping surfaces of the groove being opposed to each other and the groove having no flat surface on bottom, the groove for reflecting obliquely the light vertically incident which enters a space between the pixel electrodes.
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11. A substrate having a pixel electrode, comprising:
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a substrate;
a plurality of pixel units, each pixel unit including a pixel electrode useable as a reflective electrode and a switching element electrically connected to the pixel electrode, the pixel units being arranged in a matrix pattern on the substrate, the switching element having a terminal electrode forming a conductive layer, a connecting wiring provided between the pixel electrode and the conductive layer that electrically connects the pixel electrode and the terminal electrode;
a light-shielding layer having an opening surrounding a portion in which the connecting wiring is formed and having no opening in regions between adjacent pixel electrodes, the light-shielding layer being formed between the pixel electrode and the conductive layer; and
an underlying insulating layer being formed below the pixel electrodes, and in regions between adjacent pixel electrodes of the plurality of pixel units, a groove having no flat surface on bottom and having a substantially V-shaped surface relative to an upper surface of the underlying insulating layer being formed in regions between adjacent pixel electrodes on a surface of the light-shielding layer under the underlying insulating layer, the groove for reflecting obliquely the light vertically incident which enters a space between the pixel electrodes.
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Specification