WO2010071350A2 - Dispositif d'affichage à cristaux liquides - Google Patents

Dispositif d'affichage à cristaux liquides Download PDF

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Publication number
WO2010071350A2
WO2010071350A2 PCT/KR2009/007512 KR2009007512W WO2010071350A2 WO 2010071350 A2 WO2010071350 A2 WO 2010071350A2 KR 2009007512 W KR2009007512 W KR 2009007512W WO 2010071350 A2 WO2010071350 A2 WO 2010071350A2
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
transparent window
crystal panel
light
layer
Prior art date
Application number
PCT/KR2009/007512
Other languages
English (en)
Korean (ko)
Other versions
WO2010071350A3 (fr
Inventor
김종혁
Original Assignee
엘지이노텍주식회사
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
Priority claimed from KR1020080126973A external-priority patent/KR20100068572A/ko
Priority claimed from KR1020080126971A external-priority patent/KR101637565B1/ko
Priority claimed from KR1020080126972A external-priority patent/KR101543021B1/ko
Application filed by 엘지이노텍주식회사 filed Critical 엘지이노텍주식회사
Publication of WO2010071350A2 publication Critical patent/WO2010071350A2/fr
Publication of WO2010071350A3 publication Critical patent/WO2010071350A3/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133502—Antiglare, refractive index matching layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix

Definitions

  • the present invention relates to a liquid crystal display device.
  • various electronic devices such as mobile communication terminals, digital cameras, notebook computers, monitors, TVs, and the like include image display devices for displaying images.
  • image display apparatuses may be used, but a flat panel display apparatus having a flat plate shape is mainly used, and a liquid crystal display (LCD) is particularly widely used among flat panel display apparatuses.
  • LCD liquid crystal display
  • a liquid crystal display device which can improve an external design of a liquid crystal display device having a light shielding pattern and simplify the manufacturing process by easily forming a light shielding pattern.
  • a liquid crystal display device includes a liquid crystal panel; A transparent window positioned above the liquid crystal panel; A light blocking pattern formed on an outer region of the transparent window; And a light conversion layer formed in an inner region of the transparent window where the light shielding pattern is not formed, and changing a characteristic of external light incident from an upper side.
  • the embodiment it is possible to improve the appearance design of the liquid crystal display device in which the light shielding pattern is formed, and to provide a liquid crystal display device which can simplify the manufacturing process by easily forming the light shielding pattern.
  • FIG. 1 is a cross-sectional view of a liquid crystal display device according to a first embodiment.
  • FIG. 2 is a cross-sectional view of a liquid crystal display according to a second embodiment.
  • FIG. 5 is a cross-sectional view of a liquid crystal display according to a third embodiment.
  • FIG. 6 is a plan view of a liquid crystal display according to an exemplary embodiment.
  • FIG. 7 is a cross-sectional view of a liquid crystal display according to a fourth embodiment.
  • FIG. 8 is a cross-sectional view of a liquid crystal display according to a fifth embodiment.
  • FIG. 1 is a cross-sectional view of a liquid crystal display device according to a first embodiment.
  • the liquid crystal display may include a liquid crystal panel 120 and a transparent window 150.
  • the mold frame 100 accommodates the liquid crystal panel 120 and a backlight unit (not shown).
  • the liquid crystal panel 120 may include a liquid crystal layer and a TFT substrate and a color filter substrate facing each other with the liquid crystal layer interposed therebetween. Since the liquid crystal panel 120 does not have self-luminous power, the liquid crystal panel 120 may include a backlight unit (not shown) positioned under the liquid crystal panel 120 to provide light.
  • An upper polarizer 130 and a lower polarizer 110 may be formed on an upper surface and a lower surface of the liquid crystal panel 120, more specifically, on an upper surface of the color filter substrate and a lower surface of the TFT substrate.
  • the transparent window 150 is disposed above the liquid crystal panel 120 at regular intervals to protect the liquid crystal panel 120 from external impact.
  • the transparent window 150 transmits light emitted from the liquid crystal panel 120 so that an image displayed on the liquid crystal panel 120 is viewed from the outside.
  • the transparent window 150 may be made of a plastic or glass material such as acrylic having impact resistance and light transmittance.
  • An adhesive layer 160 may be formed in the space between the liquid crystal panel 120 and the transparent window 150.
  • the adhesive layer 160 may bond the liquid crystal panel 120 and the transparent window 150 to improve external visibility of the display image and may protect the liquid crystal panel 120 from external impact.
  • the adhesive layer 160 may be made of a UV resin, and more specifically, may be formed by applying a resin such as acrylic and then curing by irradiating UV light. have.
  • the light blocking pattern 140 may be formed in an outer region of the transparent window 150.
  • the outer area of the transparent window 150 may be a non display area in which an image is not displayed in the transparent window 150.
  • the light blocking pattern 140 may block light from being emitted to the outside through the outer region of the transparent window 150. Accordingly, when viewed from the outside, the outer area surrounding the inner area in which the image is displayed in the transparent window 150 may be blocked by light by the light shielding pattern 140 to have a black color.
  • the light blocking pattern 140 may be formed by printing a black pattern on a lower surface of the transparent window 150.
  • the reflective thin film layer 170 which is a light conversion layer, may be formed between the liquid crystal panel 120 and the transparent window 150, and more particularly, between the transparent window 150 and the upper polarizer 130.
  • the reflective thin film layer 170 may be formed on the lower surface of the inner region in which the light shielding pattern 140 is not formed in the transparent window 150.
  • the reflective thin film layer 170 may reflect external light incident from the upper side to increase brightness of an inner region of the transparent window 150 that is viewed from the outside. Therefore, it is possible to reduce the difference between the brightness of the outer region and the inner region of the transparent window 150.
  • the reflective thin film layer 170 may reflect some of the external light incident from the upper side and transmit the rest in the downward direction. In addition, the reflective thin film layer 170 may transmit the panel light emitted upward from the liquid crystal panel 120 (some may be reflected), so that the display image may be displayed to the outside through the transparent window 150.
  • the reflective thin film layer 170 may be formed of a thin metal thin film.
  • the reflective thin film layer 170 may be formed by forming a thin metal film by depositing a thin metal material on the lower surface of the transparent window 150.
  • the reflective thin film layer 170 formed as described above may reflect some of the incident external light and transmit the panel light emitted from the liquid crystal panel 120.
  • the reflective thin film layer 170 may be formed only in a partial region on the lower surface of the transparent window 150 in the form of a lattice. In this case, outside light is reflected in a region where the reflective thin film layer 170 is formed among the lower surfaces of the transparent window 150, and panel light emitted from the liquid crystal panel 120 is upward in a region where the reflective thin film layer 170 is not formed. Can be permeable.
  • the reflectance of the reflective thin film layer 170 may be determined by the amount of light reflected or scattered in the outer region of the transparent window 150. That is, the amount of light reflected from the inner region of the transparent window 150 to the outside by the reflective thin film layer 170 is the same as or similar to the amount of light reflected or scattered from the outer region of the transparent window 150 such that the inner region and the outer region
  • the reflectance of the reflective thin film layer 170 may be determined so that the difference in brightness of?
  • the liquid crystal display according to the first exemplary embodiment may reflect the light incident from the outside by forming the reflective layer 170 in an inner region of the transparent window 150 where the light shielding pattern 140 is not formed. have. Accordingly, the difference in brightness between the inner region and the outer region of the transparent window 150 may be reduced when viewed from the outside, thereby improving appearance design.
  • FIG. 2 is a cross-sectional view of a liquid crystal display according to a second embodiment.
  • the liquid crystal panel 220 may be accommodated in the mold frame 200.
  • the liquid crystal panel 220 may include a liquid crystal layer and a TFT substrate and a color filter substrate facing each other with the liquid crystal layer interposed therebetween. Since the liquid crystal panel 220 does not have self-luminous power, the liquid crystal panel 220 may include a backlight unit (not shown) positioned under the liquid crystal panel 220.
  • An upper polarizer 230 and a lower polarizer 210 may be formed on an upper surface and a lower surface of the liquid crystal panel 220, more specifically, on an upper surface of the color filter substrate and a lower surface of the TFT substrate.
  • the transparent window 250 is disposed on the upper side of the liquid crystal panel 220 at regular intervals to protect the liquid crystal panel 220 from external shocks, and transmits the light emitted from the liquid crystal panel 220 to transmit the liquid crystal panel 220.
  • the image displayed at is displayed from the outside.
  • the transparent window 250 may be made of a plastic or glass material such as acrylic having impact resistance and light transmittance.
  • An adhesive layer 260 may be formed in the space between the liquid crystal panel 220 and the transparent window 250.
  • the adhesive layer 260 may bond the liquid crystal panel 220 and the transparent window 250 to improve external visibility of the display image and may protect the liquid crystal panel 220 from external impact.
  • the adhesive layer 260 may be made of a UV resin, and more specifically, may be formed by applying a resin such as acrylic and then curing by irradiating UV light. have.
  • the light blocking pattern 240 may be formed in an outer region of the transparent window 250.
  • the outer region of the transparent window 250 may be a non display area in which an image is not displayed among the transparent windows 250, and the light shielding pattern 240 may light through the outer region of the transparent window 250. It can be blocked from being released to the outside. Accordingly, when viewed from the outside, the outer region surrounding the inner region in which the image is displayed among the transparent windows 250 may be blocked by light by the light blocking pattern 240, thereby making it black.
  • the light blocking pattern 240 may be formed by printing a black pattern on a lower surface of the transparent window 250.
  • the scattering layer 270 which is a light conversion layer, may be formed between the liquid crystal panel 220 and the transparent window 250, and more specifically, on the lower surface of the inner region where the light shielding pattern 240 is not formed among the transparent windows 250. Can be.
  • the scattering layer 270 may scatter external light incident from the upper side to increase the brightness of the inner region of the transparent window 250 that is viewed from the outside. Thus, the difference in brightness between the outer area of the transparent window 250 and the inner area can be reduced.
  • the scattering layer 270 may scatter some of the external light incident from the upper side and transmit the remaining external light in the downward direction.
  • the display image may be transmitted through the transparent window 250 by transmitting the panel light emitted from the liquid crystal panel 220. It can be shown externally.
  • the scattering degree of the scattering layer 270 representing the degree of scattering of the external light incident by the scattering layer 270 may be determined by the amount of light reflected or scattered in the outer region of the transparent window 250.
  • the amount of light scattered in the inner region of the transparent window 250 by the scattering layer 270 is the same as or similar to the amount of light reflected or scattered in the outer region of the transparent window 250 so that the brightness of the inner region and the outer region is different.
  • the scattering degree of the scattering layer 270 may be determined so that the difference is not identified externally.
  • external light incident from the outside may be reflected or scattered at the interface portion between the transparent window 250 and the light shielding pattern 240.
  • the external light is formed by the transparent window 250 and the light blocking pattern ( It may be reflected or scattered at the interface portion of 240. Due to the reflection or scattering of external light, the outer region of the transparent window 250 in which the light shielding pattern 240 is formed may be seen to be slightly brighter than the actual color of the light shielding pattern 240, for example, black. have.
  • the scattering layer 240 may be formed in an inner region of the transparent window 250 where the light shielding pattern 240 is not formed to scatter light incident from the outside.
  • the difference in brightness between the inner and outer regions of the transparent window 250 may be reduced when viewed from the outside.
  • 3 and 4 illustrate embodiments of a method of forming the scattering layer 270, and the scattering layer 270 uses an adhesive layer 260 formed between the liquid crystal panel 220 and the transparent window 250. Can be formed.
  • a scattering layer 270 may be formed by dispersing and applying a plurality of scattering particles 271 scattering light onto a lower surface of the transparent window 250. Accordingly, external light incident from the outside may be scattered by the scattering particles 271 included in the scattering layer 270.
  • the bottom surface of the transparent window 250 may be processed to form a plurality of uneven parts 272 to form the scattering layer 270. Accordingly, external light incident from the outside may be scattered by the uneven parts 272 included in the scattering layer 270.
  • sand particles such as gold steel, etc.
  • the scattering layer 270 is formed in an inner region of the transparent window 250 where the light shielding pattern 240 is not formed to scatter light incident from the outside. Can be. Accordingly, the difference in brightness between the inner region and the outer region of the transparent window 150 may be reduced when viewed from the outside, thereby improving appearance design.
  • FIG. 5 is a cross-sectional view of the liquid crystal display according to the third embodiment
  • FIG. 6 is a plan view of the liquid crystal display according to the third embodiment.
  • the liquid crystal display may include a liquid crystal panel 320 and a transparent window 350.
  • the liquid crystal panel 320 may include a liquid crystal layer and a TFT substrate and a color filter substrate facing each other with the liquid crystal layer interposed therebetween. Since the liquid crystal panel 320 does not have self-luminous power, the liquid crystal panel 320 may include a backlight unit (not shown) positioned below the liquid crystal panel 320.
  • the transparent window 350 is disposed above the liquid crystal panel 320 at regular intervals to protect the liquid crystal panel 320 from external impact.
  • the transparent window 350 transmits light emitted from the liquid crystal panel 320 so that an image displayed on the liquid crystal panel 320 is viewed from the outside.
  • the transparent window 350 may be made of a plastic or glass material such as acrylic having impact resistance and light transmittance.
  • An upper polarizer 340 and a first lower polarizer 330 may be positioned between the liquid crystal panel 320 and the transparent window 350.
  • the upper polarizer 340 and the first lower polarizer 330 may have an absorption axis (stretch axis) that is a direction in which the upper polarizer 340 and the first lower polarizer 330 are stretched, and a transmission axis (polarization axis) orthogonal to the absorption axis. Accordingly, the upper polarizer 340 and the first lower polarizer 330 divide the incident light into two polarization components orthogonal to each other, so that the light incident in parallel with the absorption axis is absorbed or dispersed and parallel with the transmission axis. The incident light can be transmitted.
  • the upper polarizer 340 is disposed on the upper side of the liquid crystal panel 320, and more specifically, on the lower side of the transparent window 350 to polarize light in a direction parallel to its transmission axis among the light emitted from the liquid crystal panel 320. Can transmit light having a state.
  • the first lower polarizer 330 may be disposed below the transparent window 350, more specifically, between the upper polarizer 340 and the liquid crystal panel 330, and may be formed in an outer region of the transparent window 350.
  • the upper polarizer 340 and the first lower polarizer 330 may be formed in a direction in which transmission axes are perpendicular to each other.
  • the transparent window in which the upper polarizer 340 and the first lower polarizer 330 overlap each other In the outer region of 350, light may be blocked to act as a light shielding pattern, and the inner region may serve as a light conversion layer. That is, the first lower polarizer 330 transmits only light having a polarization state in a direction parallel to its transmission axis among the light incident from the liquid crystal panel 320, and is transmitted by the first lower polarizer 330. Since the light has a polarization state in a direction orthogonal to the transmission axis of the upper polarizer 340, the light may be blocked by the upper polarizer 340.
  • a second lower polarizer 310 may be disposed below the liquid crystal panel 320, and more specifically, below the TFT substrate.
  • the second lower polarizer 310 may transmit light having a polarization state in a direction parallel to its transmission axis among the light emitted from the backlight unit (not shown).
  • the transmission axis of the second lower polarizer 310 may be formed in a direction orthogonal to the transmission axis of the upper polarizer 340. Accordingly, in the inner region in which the first lower polarizer 330 is not formed among the transparent windows 350, the light passing through the liquid crystal panel 320 after the upper polarizer 340 passes through the second lower polarizer 310. Can transmit light having a polarization state in a direction parallel to its transmission axis.
  • the first lower polarizer 330 is formed at an outer region of the transparent window 350
  • the second lower polarizer 310 is formed at a position corresponding to the inner region of the transparent window 350.
  • the first and second lower polarizers 330 and 310 may not overlap each other.
  • FIG. 6 illustrates an embodiment of a shape of an outer region and an inner region of the transparent window 350.
  • the upper polarizing plate 330 and the first lower polarizing plate 330 whose transmission axes are perpendicular to each other overlap each other, and are emitted from the liquid crystal panel 320 or the like.
  • the light may be blocked without being emitted to the outside through the transparent window 350. Accordingly, the outer region 354 of the transparent window 350 may become black when viewed from the outside.
  • the inner region 352 of the transparent window 350 serves as a light conversion layer, such that the upper polarizer 330 and the second lower polarizer 310 overlap with the liquid crystal panel 320 interposed therebetween, and thus, the second lower part.
  • the light passing through the liquid crystal panel 320 may be polarized in a direction parallel to the transmission axis of the upper polarizing plate 340 and then emitted to the outside through the transparent window 350. Accordingly, an image displayed on the liquid crystal panel 320 may be displayed to the outside through the inner region 352 of the transparent window 350.
  • the transmission axes of the upper polarizer 330 and the first lower polarizer 330 are orthogonal to each other, but the transmission axes of the upper polarizer 330 and the first lower polarizer 330 are perpendicular to each other. It can be twisted slightly. That is, as the transmission axis of the upper polarizer 330 is shifted about the direction orthogonal to the transmission axis of the first lower polarizer 330, the brightness of the outer region 354 of the transparent window 350 may increase. .
  • the transmission axes of the upper polarizer 330 and the first lower polarizer 330 may be adjusted such that the brightness of the outer region 354 of the transparent window 350 has a value similar to the brightness of the inner region 350.
  • FIG. 7 is a cross-sectional view of a liquid crystal display according to a fourth embodiment.
  • a first adhesive layer 345 may be formed between the transparent window 350 and the upper polarizer 340.
  • the upper polarizing plate 340 is positioned, and the resin is cured using ultraviolet (UV) light to form the first adhesive layer 345.
  • the upper polarizing plate 340 may be formed on the lower surface of the transparent window 350 by the first adhesive layer 345 formed as described above.
  • a second adhesive layer may be formed in the space between the transparent window 350 and the liquid crystal panel 320, more specifically, in the space between the upper polarizing plate 340 and the liquid crystal panel 320 formed on the lower surface of the transparent window 350. 335 may be formed.
  • panel light emitted upward from the liquid crystal panel 320 may be scattered in the air layer.
  • the panel light may be refracted by a difference in refractive index between the liquid crystal panel 320 and the air layer or a difference in refractive index between the light transmitting layer 350 and the air layer. Due to the scattering or refraction of the panel light as described above, the inner region of the transparent window 350 may be seen to be brighter than the outer region when viewed from the outside, and the image quality of the image may be degraded, such as the outdoor visibility of the display image is reduced. .
  • a resin such as acrylic
  • FIG. 8 is a cross-sectional view illustrating another embodiment of the configuration of the liquid crystal display according to the fifth embodiment, and descriptions of the same elements as those described with reference to FIGS. 5 to 7 will be omitted.
  • the transparent window positioned above the liquid crystal panel 320 may be formed of a polarizing glass 360, and a first lower polarizing plate 330 may be formed in an outer region of the polarizing glass 360. have.
  • the polarizing glass 360 and the first lower polarizing plate 330 may be formed in a direction in which transmission axes are perpendicular to each other. Accordingly, an outer region of the polarizing glass 360 overlapping the first lower polarizing plate 330 may emit light. It may become black when viewed from the outside by blocking it.
  • the transmission axis of the polarizing glass 360 may be perpendicular to the transmission axis of the second lower polarizing plate 310 formed below the liquid crystal panel 320. Accordingly, in the inner region of the polarizing glass 360 where the polarizing glass 360 and the second lower polarizing plate 310 overlap with the liquid crystal panel 320 interposed therebetween, the liquid crystal is transmitted through the second lower polarizing plate 310. Light passing through the panel 320 is polarized in a direction parallel to the transmission axis of the polarizing glass 360 to be transmitted to the outside, so that an image displayed on the liquid crystal panel 320 may be displayed to the outside.
  • an adhesive layer 500 may be formed in a space between the liquid crystal panel 320 and the polarizing glass 360.
  • the adhesive layer 500 may be formed of a resin such as transparent acrylic, and adheres the liquid crystal panel 320 and the polarizing glass 360 and at the same time generates light in the inner region of the polarizing glass 360. Scattering or refraction may be reduced to reduce the difference in brightness between the inner and outer regions of the polarizing glass 360 as seen from the outside.
  • the light shielding pattern is formed in the outer region 354 of the transparent window 350 using two polarizing plates.
  • the brightness of the outer region 354 and the inner region 350 may be adjusted to reduce the difference in brightness between the two regions 350 and 354, thereby improving the appearance design.
  • the embodiment can be applied to a liquid crystal display device.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un dispositif d'affichage à cristaux liquides qui comprend, dans un de ses modes de réalisation : un écran à cristaux liquides; une fenêtre transparente disposée sur l'écran à cristaux liquides; un motif anti-éblouissement formé dans la zone périphérique de la fenêtre transparente; et une couche de conversion optique formée dans la zone interne de la fenêtre transparente, le motif anti-éblouissement n'étant pas prévu pour modifier les caractéristiques de la lumière provenant d'une source extérieure incidente depuis le dessus de l'écran.
PCT/KR2009/007512 2008-12-15 2009-12-15 Dispositif d'affichage à cristaux liquides WO2010071350A2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2008-0126971 2008-12-15
KR10-2008-0126972 2008-12-15
KR10-2008-0126973 2008-12-15
KR1020080126973A KR20100068572A (ko) 2008-12-15 2008-12-15 액정 표시 장치
KR1020080126971A KR101637565B1 (ko) 2008-12-15 2008-12-15 액정 표시 장치
KR1020080126972A KR101543021B1 (ko) 2008-12-15 2008-12-15 액정 표시 장치

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WO2010071350A2 true WO2010071350A2 (fr) 2010-06-24
WO2010071350A3 WO2010071350A3 (fr) 2010-09-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105045436A (zh) * 2015-09-15 2015-11-11 京东方科技集团股份有限公司 显示面板及其制备方法、显示装置
KR20170045318A (ko) * 2015-05-29 2017-04-26 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 디스플레이 스크린 패널 및 이를 구비하는 이동 단말기
CN108107627A (zh) * 2017-10-03 2018-06-01 友达光电股份有限公司 显示面板及其使用的光学片
CN109164659A (zh) * 2018-09-30 2019-01-08 Oppo广东移动通信有限公司 电致变色装置及其制备方法、电子设备
CN109407409A (zh) * 2019-01-08 2019-03-01 京东方科技集团股份有限公司 背光模组及其制作方法、显示装置

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CN105045436A (zh) * 2015-09-15 2015-11-11 京东方科技集团股份有限公司 显示面板及其制备方法、显示装置
WO2017045356A1 (fr) * 2015-09-15 2017-03-23 京东方科技集团股份有限公司 Panneau d'affichage et son procédé de fabrication et appareil d'affichage
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CN108107627B (zh) * 2017-10-03 2020-10-16 友达光电股份有限公司 显示面板及其使用的光学片
CN109164659A (zh) * 2018-09-30 2019-01-08 Oppo广东移动通信有限公司 电致变色装置及其制备方法、电子设备
CN109164659B (zh) * 2018-09-30 2021-10-01 Oppo广东移动通信有限公司 电致变色装置及其制备方法、电子设备
CN109407409A (zh) * 2019-01-08 2019-03-01 京东方科技集团股份有限公司 背光模组及其制作方法、显示装置
CN109407409B (zh) * 2019-01-08 2023-10-13 京东方科技集团股份有限公司 背光模组及其制作方法、显示装置

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