[go: up one dir, main page]

KR20060062102A - Display screen - Google Patents

Display screen Download PDF

Info

Publication number
KR20060062102A
KR20060062102A KR1020040100830A KR20040100830A KR20060062102A KR 20060062102 A KR20060062102 A KR 20060062102A KR 1020040100830 A KR1020040100830 A KR 1020040100830A KR 20040100830 A KR20040100830 A KR 20040100830A KR 20060062102 A KR20060062102 A KR 20060062102A
Authority
KR
South Korea
Prior art keywords
lens sheet
lenticular lens
hologram diffuser
light
display screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
KR1020040100830A
Other languages
Korean (ko)
Inventor
성동묵
박기원
이영주
권혁
오창훈
임태선
부종욱
정지혁
Original Assignee
엘지마이크론 주식회사
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지마이크론 주식회사, 엘지전자 주식회사 filed Critical 엘지마이크론 주식회사
Priority to KR1020040100830A priority Critical patent/KR20060062102A/en
Publication of KR20060062102A publication Critical patent/KR20060062102A/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00605—Production of reflex reflectors
    • B29D11/00615—Production of reflex reflectors moulded by partially embedding reflective elements, e.g. glass beads, into the surface of a support, e.g. to make prefabricated road markings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/602—Lenticular screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

본 발명은 무아레(Moire) 현상을 개선한 디스플레이용 스크린에 관한 것이다. 상기 디스플레이용 스크린은 입사된 광을 평행하게 배향시키는 프레넬렌즈(Fresnel lens)시트, 상기 프레넬렌즈시트를 통과한 평행광을 모아서 굴절시키는 렌티큘라렌즈(Lenticular Lens)시트, 상기 렌티큘라렌즈시트에 일정간격으로 형성되어 광이 통과하지 않는 부분을 막아주는 블랙매트릭스(Black Matrix), 상기 렌티큘라렌즈시트를 통과한 광을 확산시키는 광확산판인 불규칙한 홀로그램디퓨저(Hologram Diffuser)를 구비한다. 상기 디스플레이용 스크린은 광확산판으로 불규칙한 홀로그램디퓨저가 사용되므로 홀로그램디퓨저에 의하여 무아레 현상이 최소화된다. 그러므로, 프레넬렌즈시트의 렌즈와 렌티큘라렌즈시트의 렌즈를 상호 대응되게 동시에 조정할 필요가 없고, 프레넬렌즈시트의 렌즈와 렌티큘라렌즈시트의 렌즈의 광확특성을 향상시키키 위하여 렌즈 사이즈를 조정할 경우에 각각 독립적으로 조정하면 되므로 간편하다. 그리고, 홀로그램디퓨저의 특성상 수평시야각이 향상된다.The present invention relates to a display screen for improving the moire phenomenon. The display screen includes a Fresnel lens sheet for aligning incident light in parallel, a Lenticular Lens sheet for collecting and refracting parallel light passing through the Fresnel lens sheet, and the lenticular lens sheet. It is provided with a black matrix (Black Matrix) that is formed at a predetermined interval to prevent the light does not pass through, the irregular hologram diffuser (Hologram Diffuser) that is a light diffusion plate for diffusing the light passing through the lenticular lens sheet. Since the display screen uses an irregular hologram diffuser as a light diffusion plate, the moire phenomenon is minimized by the hologram diffuser. Therefore, it is not necessary to simultaneously adjust the lenses of the Fresnel lens sheet and the lenses of the Lenticular lens sheet, and adjust the lens size to improve the optical properties of the lenses of the Fresnel lens sheet and the lenses of the lenticular lens sheet. In this case, they can be adjusted independently. In addition, the horizontal viewing angle is improved due to the characteristics of the hologram diffuser.

Description

디스플레이용 스크린 {SCREEN FOR DISPLAY}Screen for display {SCREEN FOR DISPLAY}

도 1은 종래의 디스플레이용 스크린의 개략적 구성을 보인 도.1 shows a schematic configuration of a screen for a conventional display.

도 2는 본 발명의 일 실시예에 따른 디스플레이용 스크린의 개략적 구성을 보인 도.Figure 2 shows a schematic configuration of a display screen according to an embodiment of the present invention.

도 3은 도 2에 도시된 홀로그램디퓨저의 사시도.3 is a perspective view of the hologram diffuser shown in FIG.

도 4는 본 발명의 다른 실시예에 따른 홀로그램디퓨저의 사시도.4 is a perspective view of a hologram diffuser according to another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

110 : 프레넬렌즈시트 120 : 렌티큘라렌즈시트110: Fresnel lens sheet 120: lenticular lens sheet

130 : 블랙매트릭스 140 : 홀로그램디퓨저130: black matrix 140: hologram diffuser

본 발명은 무아레(Moire) 현상을 개선한 디스플레이용 스크린에 관한 것이다.The present invention relates to a display screen for improving the moire phenomenon.

도 1은 종래의 디스플레이용 스크린의 개략적 구성을 보인 도로써, 이를 설명한다.1 is a view showing a schematic configuration of a conventional display screen, which will be described.

도시된 바와 같이, 디스플레이용 스크린은 입사된 광을 평행하게 배향시키는 프레넬렌즈(Fresnel lens)시트(11), 평행광을 모아주는 렌티큘라렌즈(Lenticular Lens)시트(13), 렌티큘라렌즈시트(13)에 일정간격으로 형성되어 광이 지나가지 않는 부분을 막아주는 블랙매트릭스(Black Matrix)(15) 및 렌티큘라렌즈시트(13)를 통과한 광을 산란시켜 확산시키는 광확산판(17)을 가진다.As shown, the display screen includes a Fresnel lens sheet 11 for orienting incident light in parallel, a lenticular lens sheet 13 for collecting parallel light, and a lenticular lens sheet. The light diffusion plate 17 formed at a predetermined interval to scatter and diffuse the light passing through the black matrix 15 and the lenticular lens sheet 13 that prevents the light from passing through. Has

그런데, 디스플레이용 스크린에 있어서 평행광이 렌티큘라렌즈시트(13)를 통과하면서 굴절될 경우, 광성분 간의 간섭에 의한 거리 변화로 인해 위상차가 생기고 위상차에 의해 스크린의 성능을 저하시키는 무아레(Moire) 및 스페클(Speckle) 현상이 발생한다. 무아레란 화면 영상에 생기는 물결 무늬를 말하고, 스페클이란 화면 영상에 생기는 낟알을 말한다.By the way, when parallel light is refracted while passing through the lenticular lens sheet 13 in the display screen, a phase difference occurs due to a change in distance caused by interference between light components, and a moire that reduces the performance of the screen due to the phase difference. And a speckle phenomenon occurs. Moire refers to the wave pattern that occurs in the screen image, and speckle refers to the grain that occurs in the screen image.

상기와 같은 종래의 디스플레이용 스크린에 있어서는 무아레 현상을 최소화하기 위하여 프레넬렌즈시트(11)의 렌즈(11a) 사이즈와 렌티큘라렌즈시트(13)의 렌즈(13a) 사이즈를 조절한다.In the conventional display screen as described above, in order to minimize the moire phenomenon, the size of the lens 11a of the Fresnel lens sheet 11 and the size of the lens 13a of the lenticular lens sheet 13 are adjusted.

즉, 종래의 디스플레이용 스크린은 무아레 현상을 최소화하기 위해, 각각 균일하게 배열된 프레넬렌즈시트(11)의 렌즈(11a)와 렌티큘라렌즈시트(13)의 렌즈(13a) 사이즈를 변경한다. 그런데, 렌티큘러렌즈시트(13)의 렌즈(13a)를 미세하게 조정하는 경우에는 이와 대응되게 프레넬렌즈시트(11)의 렌즈(11a)도 동시에 조정하여야 하는 불편함이 있다.That is, in the conventional display screen, in order to minimize the moire phenomenon, the size of the lens 11a of the Fresnel lens sheet 11 and the lens 13a of the lenticular lens sheet 13 are arranged uniformly, respectively. However, when the lens 13a of the lenticular lens sheet 13 is finely adjusted, there is an inconvenience in that the lens 11a of the Fresnel lens sheet 11 must be simultaneously adjusted.

미설명부호 17a는 스페클 현상을 최소화하기 위한 비드이다.Reference numeral 17a is a bead to minimize the speckle phenomenon.

본 발명은 상기와 같은 종래 기술의 문제점을 해소하기 위하여 안출된 것으 로, 본 발명의 목적은 불규칙한 홀로그램디퓨저(Hologram Diffuser)를 광확산판으로 사용하므로써 간편하게 무아레 현상을 최소화할 수 있는 디스플레이용 스크린을 제공함에 있다.The present invention has been made to solve the problems of the prior art as described above, an object of the present invention by using an irregular hologram diffuser (light diffuser) as a light diffuser plate for a display screen that can easily minimize the moire phenomenon In providing.

상기 목적을 달성하기 위한 본 발명에 따른 디스플레이용 스크린은 입사된 광을 평행하게 배향시키는 프레넬렌즈(Fresnel lens)시트; 상기 프레넬렌즈시트를 통과한 평행광을 모아서 굴절시키는 렌티큘라렌즈(Lenticular Lens)시트; 상기 렌티큘라렌즈시트에 일정간격으로 형성되어 광이 통과하지 않는 부분을 막아주는 블랙매트릭스(Black Matrix); 상기 렌티큘라렌즈시트를 통과한 광을 확산시키는 광확산판인 불규칙한 홀로그램디퓨저(Hologram Diffuser)를 구비한다.Display screen according to the present invention for achieving the above object is a Fresnel lens (Fresnel lens) sheet for orienting the incident light in parallel; A lenticular lens sheet for collecting and refracting parallel light passing through the Fresnel lens sheet; A black matrix formed on the lenticular lens sheet at a predetermined interval to block a portion where light does not pass; It is provided with an irregular hologram diffuser (Hologram Diffuser) that is a light diffusion plate for diffusing the light passed through the lenticular lens sheet.

이하, 첨부한 도면을 참조하여 본 발명의 일 실시예들에 따른 디스플레이용 스크린을 상세히 설명한다.Hereinafter, a display screen according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 디스플레이용 스크린의 개략적 구성을 보인 도이고, 도 3은 도 2에 도시된 홀로그램디퓨저의 사시도이다.2 is a view showing a schematic configuration of a display screen according to an embodiment of the present invention, Figure 3 is a perspective view of the hologram diffuser shown in FIG.

도시된 바와 같이, 디스플레이용 스크린(100)은 입사된 광을 평행하게 배향시키는 프레넬렌즈(Fresnel lens)시트(110), 평행광을 모아서 굴절시키는 초점요소인 렌티큘라렌즈(Lenticular Lens)시트(120), 렌티큘라렌즈시트(120)에 일정간격으로 형성되어 광이 통과하지 않는 부분을 막아주는 블랙매트릭스(Black Matrix)(130), 블랙매트릭스(130)가 형성되지 않은 렌티큘라렌즈시트(120)의 부위를 통과한 광을 굴절시켜 확산하는 광확산판인 홀로그램디퓨저(Hologram Diffuser)(140)를 가진다.As shown, the display screen 100 includes a Fresnel lens sheet 110 for directing incident light in parallel, and a lenticular lens sheet for collecting and refracting parallel light. 120, the lenticular lens sheet 120 is formed at a predetermined interval to block the portion where the light does not pass (Black Matrix 130, lenticular lens sheet 120 is not formed in the black matrix 130) It has a hologram diffuser (140) that is a light diffusion plate that refracts and diffuses the light passing through the portion of the).

본 발명의 일 실시예에 따른 디스플레이용 스크린(100)은 무아레(Moire) 현상을 최소화하기 위하여 광확산판으로 불규칙한 홀로그램디퓨저(140)를 사용한다. 홀로그램디퓨저(140)의 렌즈(141)는 지름이 상호 다른 렌즈(141a,141b,141c)들이 적어도 2종류 이상 마련되어 배열된다.Display screen 100 according to an embodiment of the present invention uses an irregular hologram diffuser 140 as a light diffusion plate to minimize the moire (Moire) phenomenon. The lens 141 of the hologram diffuser 140 is arranged with at least two types of lenses 141a, 141b, and 141c having different diameters.

프레넬렌즈시트(110)를 통과한 평행광이 렌티큘라렌즈시트(120)를 통과하면서 굴절될 경우, 광성분 간의 간섭에 의한 거리 변화로 인해 위상차가 생기고 위상차의 간섭에 의하여 발생하는 무아레가 본 실시예에 따른 디스플레이용 스크린(100)에서는 불규칙한 홀로그램디퓨저(140)의 렌즈(141)에 의하여 해소된다. 즉, 무아레 현상이 광확산판인 홀로그램디퓨저(140)에서 최소화된다. 뿐만 아니라, 프레넬렌즈시트(110)의 렌즈(111)와 렌티큘라렌즈시트(120)의 렌즈(121)를 변경하더라도 각각 독립적으로 변경하면 되므로 간편하다. 그리고, 홀로그램디퓨저(140)의 렌즈(141) 특성상 수평시야각도 향상된다.When the parallel light passing through the Fresnel lens sheet 110 is refracted while passing through the lenticular lens sheet 120, a phase difference occurs due to a change in distance caused by interference between light components, and a moire generated by interference of the phase difference is seen. The display screen 100 according to the embodiment is solved by the lens 141 of the irregular hologram diffuser 140. That is, the moire phenomenon is minimized in the hologram diffuser 140 which is a light diffusion plate. In addition, even if the lens 111 of the Fresnel lens sheet 110 and the lens 121 of the lenticular lens sheet 120 is changed, it is easy to change each independently. In addition, the horizontal viewing angle is improved due to the characteristics of the lens 141 of the hologram diffuser 140.

미설명부호 143은 스페클(Speckle) 현상을 제거하기 위한 비드이다.Reference numeral 143 denotes a bead for removing the speckle phenomenon.

도 4는 본 발명의 다른 실시예에 따른 홀로그램디퓨저의 사시도로써, 도 3과의 차이점 만을 설명한다.4 is a perspective view of a hologram diffuser according to another embodiment of the present invention, and only a difference from FIG. 3 will be described.

도 4에 도시된 홀로그램디퓨저(150)는 렌즈(151,155)가 양면에 형성된 것을 보인다. 이때, 홀로그램디퓨저(150)의 일면 및 타면에 형성된 렌즈(151,155)는 각각 지름이 상호 다른 렌즈(151a,151b,151c)(155a,155b,155c)들이 적어도 2종류 이상 마련되어 배열된다. 홀로그램디퓨저(150)의 일면 및 타면에 형성된 렌즈 (151)(155)는 상호 대칭 또는 비대칭을 이룰수 도 있다.The hologram diffuser 150 shown in FIG. 4 shows that the lenses 151 and 155 are formed on both surfaces. In this case, at least two or more lenses 151a, 151b, 151c, 155a, 155b, and 155c having different diameters are arranged in the lenses 151 and 155 formed on one surface and the other surface of the hologram diffuser 150, respectively. The lenses 151 and 155 formed on one surface and the other surface of the hologram diffuser 150 may be symmetrical or asymmetrical to each other.

본 실시예에 따른 디스플레이용 스크린(200)은, 전술한 바와 같이, 불규칙한 홀로그램 디퓨저를 사용한 스크린 구조에서 무아레 현상을 더욱 최소화하기 위하여 프레넬렌즈시트(110)의 렌즈(111) 및 렌티큘라렌즈시트(120)의 렌즈(121)를 불규칙하게 형성할 수 도 있다. 즉, 프레넬렌즈시트(110)의 렌즈(111) 및 렌티큘라렌즈시트(120)의 렌즈(121) 중 적어도 하나는 그 지름이 2종류로 형성되어 불규칙하게 배열된다.The display screen 200 according to the present embodiment, as described above, the lens 111 and the lenticular lens sheet of the Fresnel lens sheet 110 to further minimize the moire phenomenon in the screen structure using an irregular hologram diffuser. The lens 121 of 120 may be irregularly formed. That is, at least one of the lens 111 of the Fresnel lens sheet 110 and the lens 121 of the lenticular lens sheet 120 has two kinds of diameters and is irregularly arranged.

이상에서 설명한 바와 같이, 본 발명에 따른 디스플레이용 스크린은 광확산판으로 불규칙한 홀로그램디퓨저가 사용되므로 홀로그램디퓨저에 의하여 무아레 현상이 최소화된다. 그러므로, 프레넬렌즈시트의 렌즈와 렌티큘라렌즈시트의 렌즈를 상호 대응되게 동시에 조정할 필요가 없고, 프레넬렌즈시트의 렌즈와 렌티큘라렌즈시트의 렌즈를 광확특성을 향상시키키 위하여 렌즈 사이즈를 조정할 경우에는 각각 독립적으로 조정하면 되므로 간편하다.As described above, since the irregular display hologram diffuser is used as the light diffusion plate, the screen for display according to the present invention minimizes the moire phenomenon by the hologram diffuser. Therefore, it is not necessary to simultaneously adjust the lenses of the Fresnel lens sheet and the lenses of the Lenticular lens sheet, and adjust the lens size to improve the optical broadening characteristics of the lenses of the Fresnel lens sheet and the lenses of the lenticular lens sheet. In this case, they can be adjusted independently.

그리고, 홀로그램디퓨저의 특성상 수평시야각이 향상된다.In addition, the horizontal viewing angle is improved due to the characteristics of the hologram diffuser.

이상에서는, 본 발명의 일 실시예에 따라 본 발명을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 변경 및 변형한 것도 본 발명에 속함은 당연하다.In the above, the present invention has been described in accordance with one embodiment of the present invention, but those skilled in the art to which the present invention pertains have been changed and modified without departing from the spirit of the present invention. Of course.

Claims (3)

입사된 광을 평행하게 배향시키는 프레넬렌즈(Fresnel lens)시트;A Fresnel lens sheet for orienting incident light in parallel; 상기 프레넬렌즈시트를 통과한 평행광을 모아서 굴절시키는 렌티큘라렌즈(Lenticular Lens)시트;A lenticular lens sheet for collecting and refracting parallel light passing through the Fresnel lens sheet; 상기 렌티큘라렌즈시트에 일정간격으로 형성되어 광이 통과하지 않는 부분을 막아주는 블랙매트릭스(Black Matrix);A black matrix formed on the lenticular lens sheet at a predetermined interval to block a portion where light does not pass; 상기 렌티큘라렌즈시트를 통과한 광을 확산시키는 광확산판인 불규칙한 홀로그램디퓨저(Hologram Diffuser)를 구비하는 디스플레이용 스크린.Display screen having an irregular hologram diffuser (Hologram Diffuser) that is a light diffusion plate for diffusing the light passing through the lenticular lens sheet. 제 1 항에 있어서,The method of claim 1, 상기 불규칙한 홀로그램디퓨저는 양면에 형성된 것을 특징으로 하는 디스플레이용 스크린.The irregular hologram diffuser is a screen for display, characterized in that formed on both sides. 제 1 항에 있어서,The method of claim 1, 상기 프레넬렌즈시트의 렌즈 및 상기 렌티큘라렌즈시트의 렌즈 중 적어도 하나는 그 지름이 적어도 2종류로 마련되어 불규칙하게 배열된 것을 특징으로 하는 디스플레이용 스크린.At least one of the lens of the Fresnel lens sheet and the lens of the lenticular lens sheet is at least two kinds of diameters, the screen for display, characterized in that arranged irregularly.
KR1020040100830A 2004-12-03 2004-12-03 Display screen Ceased KR20060062102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040100830A KR20060062102A (en) 2004-12-03 2004-12-03 Display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040100830A KR20060062102A (en) 2004-12-03 2004-12-03 Display screen

Publications (1)

Publication Number Publication Date
KR20060062102A true KR20060062102A (en) 2006-06-12

Family

ID=37158313

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040100830A Ceased KR20060062102A (en) 2004-12-03 2004-12-03 Display screen

Country Status (1)

Country Link
KR (1) KR20060062102A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8618730B2 (en) 2011-09-09 2013-12-31 Samsung Display Co., Ltd. Organic light emitting diode display
CN107209291A (en) * 2014-11-20 2017-09-26 飞利浦灯具控股公司 Light diffuser
US9836023B2 (en) 2013-05-23 2017-12-05 Samsung Electronics Co., Ltd. Apparatus and method for generating wide-angle coherent light and display apparatus using wide-angle coherent light
CN111929977A (en) * 2020-10-15 2020-11-13 成都菲斯特科技有限公司 Projection screen and projection system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8618730B2 (en) 2011-09-09 2013-12-31 Samsung Display Co., Ltd. Organic light emitting diode display
US9836023B2 (en) 2013-05-23 2017-12-05 Samsung Electronics Co., Ltd. Apparatus and method for generating wide-angle coherent light and display apparatus using wide-angle coherent light
CN107209291A (en) * 2014-11-20 2017-09-26 飞利浦灯具控股公司 Light diffuser
CN107209291B (en) * 2014-11-20 2020-08-04 飞利浦灯具控股公司 Light diffuser
CN111929977A (en) * 2020-10-15 2020-11-13 成都菲斯特科技有限公司 Projection screen and projection system

Similar Documents

Publication Publication Date Title
JP2950219B2 (en) Surface light source device, image display device using the surface light source device, and prism array used for the surface light source device
JP5129906B2 (en) LIQUID CRYSTAL DISPLAY DEVICE LIGHTING METHOD, LIQUID CRYSTAL DISPLAY DEVICE BACKLIGHT ASSEMBLY FOR IMPLEMENTING THE METHOD, AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME
TWI502254B (en) Display device and display system combined thereof
US20110019128A1 (en) Optical member, lighting device, display device, television receiver and manufacturing method of optical member
KR101165460B1 (en) backlight unit of liquid crystal display
US20020030982A1 (en) Backlight of a liquid crystal display device
TWI591386B (en) Prism sheet, backlight module, and display device
TWI428639B (en) Diffuser plate, backlight unit and liquid crystal display having the same
KR960020458A (en) Projector Screen
JPH10301110A (en) Picture display device
JP2015026598A (en) Backlight unit and display device having the same
CN109856714A (en) The display of light leakage prevention film assembly and application the light leakage prevention film assembly
CN206147215U (en) Anti-glare structure for display device, color filter substrate and display device
KR20060062102A (en) Display screen
JP2010191105A (en) Screen and projection system
KR100879949B1 (en) Side Dimming Backlight Device Using Micro Cylindrical Pattern
CN100409036C (en) Optical components and light source devices
CN105674153B (en) Backlight module
JP2004361685A (en) Transmission screen sheet and image display device using the same
US20080101759A1 (en) Prism matrix with random phase structures
JP2006208535A (en) Liquid crystal display device
KR20070074879A (en) Display device
KR101173131B1 (en) Back light unit having unified optical sheet
JP3797888B2 (en) Transmission type screen and projection type image display apparatus using the same
US11320580B2 (en) Light directing sheet, backlight module, and display device

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20041203

PA0201 Request for examination
N231 Notification of change of applicant
PN2301 Change of applicant

Patent event date: 20050607

Comment text: Notification of Change of Applicant

Patent event code: PN23011R01D

PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20060710

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 20061127

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20060710

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I