[특허]Display panel and display device using a display panel

Display panel and display device using a display panel 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G02F-001/1335 G02F-001/1343
출원번호	US-0350033 (1994-11-29)
우선권정보	JP-0301590 (1993-12-01); JP-0333852 (1993-12-27); JP-0333862 (1993-12-27); JP-0202215 (1994-08-26)
발명자 / 주소	Takahara Hiroshi (Neyagawa JPX) Sannohe Shinya (Neyagawa JPX)
출원인 / 주소	Matsushita Electric Industrial Co., Ltd. (Osaka JPX 03)
인용정보	피인용 횟수 : 54 인용 특허 : 0

초록 ▼

A liquid crystal display panel includes a counter substrate having a counter electrode and a multi-layered dielectric film both formed thereon, and an array substrate formed with pixel electrodes and thin-film transistors serving as switching elements. A layer of polymer dispersed liquid crystal material containing a UV-curable resin component and a liquid crystal component is sealingly sandwiched between the counter and array substrates. A light shielding film is formed over each thin-film transistor. The multi-layered dielectric film is a laminated structure of alternating thin-films of SiO2 and HfO2. Since the multi-layered dielectric film is of a nature capable of transmitting UV-rays of light therethrough, the UV-curable resin component positioned underneath the multi-layered dielectric film can be cured during the manufacture. Also, since the multi-layered dielectric film is of a nature capable of reflecting light of a visible region, it serves as a black matrix, reflecting the visible light modulated by the display panel. Black beads are used to keep the film thickness of the liquid crystal layer at a predetermined value. Preferably, a dielectric thin-film having a relative dielectric constant smaller than that of the liquid crystal material is formed on signal lines for transmitting signals to the thin-film transistors, to thereby accomplish an electromagnetic shield. Where color filters are to be formed on the pixel electrodes, those color filters may be formed on the signal lines to accomplish the electromagnetic shield.

대표청구항 ▼

A display panel which comprises: a first electrode substrate formed with at least one first electrode thereon; a second electrode substrate formed with at least one second electrode thereon; a light modulating layer sandwiched between the first and second substrates; and a multi-layered dielectric film formed in a predetermined pattern on at least one of the first and second electrode substrates for transmitting light of a particular wavelength region and for reflecting light of a wavelength region other than said particular wavelength region.

이 특허를 인용한 특허 (54)

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Shunpei Yamazaki JP; Yoshiharu Hirakata JP, ELECTROOPTICAL DISPLAY DEVICE USING AN ACTIVE MATRIX DISPLAY IN WHICH A LIGHT REFLECTION FILM HAVING A FLAT SURFACE OVER THE PIXEL ELECTRODE AND THE TEXTURED BODY, AND THE PIXEL ELECTRODE HAVING A FL.
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Yamazaki, Shunpei, Liquid crystal display device comprising first and second pixel electrodes that overlap each other with an insulating layer interposed therebetween.
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Yamazaki, Shunpei, Liquid crystal display device comprising first and second reflective pixel electrodes that overlap each other with an insulating layer having a tapered first end portion interposed therebetween.
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Yamazaki, Shunpei; Nishi, Takeshi, Liquid crystal display device having resin layer contacts a transparent conductive film.
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Takahara, Hiroshi, Liquid crystal display panel including a light shielding film to control incident light.
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Display panel and display device using a display panel 원문보기

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