Transmission type liquid crystal display having an organic interlayer elements film between pixel electrodes and switching
First Claim
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1. A transmission type liquid crystal display device comprising:
- gate lines;
source lines; and
switching elements each arranged near a crossing of a gate line and a source line, a gate electrode of a switching element being connected to the gate line, a source electrode of the switching element connected to the source line, and a drain electrode of the switching element connected to a pixel electrode for applying a voltage to a liquid crystal layer, whereina transparent photosensitive interlayer organic insulating film having a thickness determined by a light transmittance and a dielectric constant of the film, and wherein the light transmittance is 90% or more for light within an entire wavelength range of about 400 nm to about 800 nm is provided above the switching element, the gate line, and the source line,said thickness of the transparent photosensitive interlayer organic insulating film provides a reduced capacitance between said pixel electrode and said gate line or source line, andsaid pixel electrode is a transparent conductive film on the interlayer insulating film.
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Abstract
The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
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Citations
30 Claims
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1. A transmission type liquid crystal display device comprising:
- gate lines;
source lines; and
switching elements each arranged near a crossing of a gate line and a source line, a gate electrode of a switching element being connected to the gate line, a source electrode of the switching element connected to the source line, and a drain electrode of the switching element connected to a pixel electrode for applying a voltage to a liquid crystal layer, whereina transparent photosensitive interlayer organic insulating film having a thickness determined by a light transmittance and a dielectric constant of the film, and wherein the light transmittance is 90% or more for light within an entire wavelength range of about 400 nm to about 800 nm is provided above the switching element, the gate line, and the source line, said thickness of the transparent photosensitive interlayer organic insulating film provides a reduced capacitance between said pixel electrode and said gate line or source line, and said pixel electrode is a transparent conductive film on the interlayer insulating film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- gate lines;
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21. A transmission type liquid crystal display device, comprising:
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gate lines;
source lines; and
switching elements where the switching elements are arranged near a crossing of a gate line and a source line, a gate electrode of a switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, whereina transparent interlayer organic insulating film above the switching element, the gate line, and the source line, the pixel electrode is a transparent conductive film on the interlayer organic film, and the transparent interlayer organic insulating film is formed of a photosensitive resin containing a photosensitive agent which has a reactive peak at a wavelength of 365 nm. - View Dependent Claims (22, 23, 24)
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25. An active matrix substrate, comprising:
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gate lines;
source lines; and
switching elements wherein the switching elements are arranged near a crossing of a gate line and a source line, a gate electrode of a switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to an electrode for forming a capacitance, whereina transparent interlayer organic insulating film is above the switching element, the gate line, and the source line, an electrode for forming a capacitance is a conductive film formed on the interlayer film, and the transparent interlayer insulating film is a photosensitive resin containing a photosensitive agent which has a reactive peak at a wavelength of 365 nm. - View Dependent Claims (26, 27)
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28. A liquid crystal display device comprising:
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a plurality of lines including source lines and gate lines; and
switching elements each arranged near a crossing of a gate line and a source line, a gate electrode of a switching element connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element connected to a pixel electrode for applying a voltage to a liquid crystal layer, whereinan interlayer organic insulating film is provided above the switching element, the gate line, and the source line, where the insulating film has a thickness determined by a dielectric constant and a light transmittance of 90% or more for light within an entire wavelength range of about 400 nm to about 800 nm, and where the thickness of the interlayer organic insulating film provides a reduced capacitance between said gate line or said source line; the pixel electrode and the plurality of lines overlap each other, and a thickness of the liquid crystal layer is less than about 4.5 μ
m. - View Dependent Claims (29, 30)
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Specification
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Current AssigneeSharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
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Original AssigneeSharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
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InventorsOkamoto, Masaya, Shimada, Takayuki, Yamamoto, Akihiro, Katayama, Mikio, Shimada, Yoshinori, Kajitani, Masaru, Nishiki, Hirohiko, Nakata, Yukinobu, Kondo, Naofumi, Sakuhana, Yoshikazu
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Primary Examiner(s)Sikes, William L.
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Assistant Examiner(s)CHOWDHURY, TARIFUR RASHID
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Application NumberUS09/110,134Time in Patent Office757 DaysField of Search349/38, 349/39, 349/43, 349/138, 430/176US Class Current349/38CPC Class CodesG02F 1/133345 Insulating layers G02F1/133...G02F 1/13606 having means for reducing p...G02F 1/136209 Light shielding layers, e.g...G02F 1/136213 Storage capacitors associat...G02F 1/136227 Through-hole connection of ...G02F 2201/40 Arrangements for improving ...
