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
  • G02F1/133509—Filters, e.g. light shielding masks
  • G02F1/133514—Colour filters
• • 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
  • G02F1/1339—Gaskets; Spacers; Sealing of cells
  • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
• • 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
  • G02F1/1339—Gaskets; Spacers; Sealing of cells
  • G02F1/13398—Spacer materials; Spacer properties

Definitions

• Embodiments of the present invention relate to a display device, a color filter substrate, and a method of fabricating the same. Background technique
• the main structure of the TFT-LCD is composed of an array substrate, a color filter substrate, a polarizing plate, and a backlight.
• the array substrate and the color filter substrate are packaged in a liquid crystal box to form a liquid crystal cell.
• the color filter substrate is used to provide color to the display.
• the structure of the color filter substrate is, for example, a black matrix and a color pixel layer on the glass substrate, and the color pixel layer is, for example, a red pixel layer, a green pixel layer, and a blue pixel layer.
• Above the color pixel layer is provided a flat layer for flattening the color pixel layer, and the flat layer is provided with a spacer for supporting the liquid crystal cell.
• the existing liquid crystal display is relatively thick because the structures on the color filter substrate are solid structures, and when the liquid crystal display is in a specific environment such as high temperature and high pressure, the liquid crystal molecules are likely to sink under the combined effects of high temperature and gravity. Further, the lower edge of the liquid crystal display is prone to color unevenness (ie, the gravity mura effect), which greatly affects the display effect of the image.
• the color pixel layer in the color film substrate generally only includes three primary color (red, green, blue) pixel layers, so that the color display of the image is too singular, which limits the visual effect of the image, so that the user's viewing feeling is not high. Summary of the invention
• An embodiment of the present invention provides a color filter substrate, including: a substrate, a black matrix and a color pixel layer formed on the substrate, and a spacer formed over the color pixel layer, wherein the black matrix, color At least one of the pixel layer and the spacer is a hollow body structure.
• Another embodiment of the present invention provides a display device including the above color film substrate.
• Yet another embodiment of the present invention provides a method of fabricating a color filter substrate, comprising: forming a solid on a substrate a black matrix and a solid color pixel layer; a solid spacer formed on the substrate on which the above steps are performed; at least one of the solid black matrix, the solid color pixel layer and the solid spacer is formed into a hollow body structure.
• FIG. 1 is a schematic structural view of a color filter substrate according to a first embodiment of the present invention
• FIG. 2 is a schematic structural view of a color filter substrate according to a second embodiment of the present invention.
• One of the technical problems to be solved by the present invention is to provide a display device, a color filter substrate, and a manufacturing method thereof, which overcome the defects of the prior art display device having a heavy structure, a single color, and a gravity mura effect.
• the color filter substrate of this embodiment includes: a substrate 1, a black matrix 2 and a color pixel layer disposed on the substrate 1, the color pixel layer including at least a red pixel layer 3, a green pixel layer 4, and a blue layer.
• Pixel layer 5 A spacer 6 is disposed above the color pixel layer; a flat layer 7 may be disposed between the color pixel layer and the spacer for flattening the surface of the color pixel layer.
• the color pixel layer includes a red pixel layer, a green pixel layer, and a blue pixel layer.
• the color pixel layer may further include a white pixel layer, a yellow pixel layer, or a pixel layer of other colors depending on the actual display of the color of the image.
• At least one of the black matrix 2, the color pixel layer, and the spacer 6 is a hollow body.
• the spacer 6 is a hollow body.
• the phenomenon of sinking causes the unevenness of the color at the lower edge of the liquid crystal panel (ie, the effect of gravity mura), affecting the image display of the screen, and setting the spacer to a hollow body structure, which can effectively prevent the liquid crystal panel from generating gravity in a high temperature environment.
• the mura effect improves the quality of the display image of the liquid crystal panel and improves the user experience.
• the method for fabricating the color filter substrate in the first embodiment of the present invention includes, for example:
• Step 1 On the glass substrate, a black matrix is formed by a patterning process.
• This patterning process may employ a conventional patterning process in the prior art, and may include, for example, masking, exposure, etching, and cleaning.
• Step 2 forming a color pixel layer by a patterning process on the substrate on which the above steps are completed.
• the color pixel layer includes a red pixel layer, a green pixel layer, and a blue pixel layer.
• Step 3 A planarization layer is formed on the color pixel layer using a patterning process for flattening the surface of the color pixel layer.
• Step 4 Apply a negative photoresist to the flat layer and form a solid structure spacer using a patterning process.
• Step 5 Apply a layer of positive photoresist to the structure of the solid spacer. After masking, exposing and controlling the exposure amount, a plurality of pores are formed in the positive photoresist layer, and the pores expose positiveness. A portion of the outer surface of the solid spacer under the photoresist layer, during which the negative photoresist of the spacer is not dissolved.
• Step 6 using an organic solvent to penetrate the pores formed in the positive photoresist layer, dissolve the negative lithography of the portion of the solid spacer under the positive photoresist, and dissolve the negative lithography
• the glue flows out of the pores as the organic solution forms a spacer of a hollow structure.
• the organic solvent only chemically reacts with the negative photoresist, but does not chemically react with the positive photoresist.
• the organic solvent may, for example, be selected from a solution having a concentration of 0.04% KOH or 2.38% of a TMAH (tetradecyl ammonium hydroxide) solution or a solution having a certain concentration of Na 2 CO 3 . Thereafter, a positive photoresist layer in which voids are formed can be removed.
• the color filter substrate of this embodiment includes: a substrate 1 and a black matrix 2 and a color pixel layer disposed on the substrate 1, the color pixel layer including a red pixel layer 3, a green pixel layer 4, and a blue pixel. Layer 5.
• the color pixel layer is provided with a flat layer 7 for flattening the surface of the color pixel layer, and the flat layer 7 is provided with a spacer 6.
• the color pixel layer is provided as a hollow body. It should be understood that although the spacer 6 is formed on the flat layer in the color filter substrate in the present embodiment, In the embodiment, the spacer may also be formed on the array substrate while being in contact with the flat layer in the color filter substrate without adhering.
• the color pixel layer By arranging the color pixel layer as a hollow body, the weight of the color filter substrate can be effectively reduced, thereby reducing the weight of the final product, and making the product thinner and lighter.
• the color pixel layer is disposed as a hollow body, so that the hollow color pixel layer can add pigments of other colors different from red, green, and blue, so that the range of display colors is further expanded to improve the display quality of the image.
• the method for fabricating the color filter substrate in the second embodiment of the present invention includes, for example:
• Step 1 A black matrix is formed on the glass substrate by a patterning process.
• This patterning process may employ a conventional patterning process in the prior art, and may include, for example, masking, exposure, etching, and cleaning.
• Step 2 Apply a negative photoresist on the substrate on which the above steps are completed, and form a solid color pixel layer by a patterning process.
• the color pixel layer includes a red pixel layer, a green pixel layer, and a blue pixel layer.
• Step 3 Apply a layer of positive photoresist on the outer surface of the solid color pixel layer, and through masking, exposing and controlling the exposure amount, forming a plurality of pores in the positive photoresist layer to expose the underlying layer A portion of the outer surface of the solid color pixel layer.
• the negative photoresist of the color pixel layer is not dissolved.
• Step 4 using an organic solvent to pass through the pores formed in the positive photoresist layer, and dissolve the negative photoresist of the portion of the color pixel layer under the positive photoresist, and dissolve the negative
• the photoresist flows out of the pores as the organic solution forms a color pixel layer of a hollow structure. Thereafter, a positive photoresist layer in which voids are formed can be removed.
• Step 5 A planarization layer is formed on the color pixel layer of the hollow structure by a patterning process for flattening the surface of the color pixel layer.
• Step 6 Forming a spacer on the substrate on which the above steps are completed by a patterning process.
• the black matrix of the hollow body may be fabricated by the above method, or a plurality of color film substrates having the same hollow structure may be fabricated.
• embodiments of the present invention also provide a display device including the color film substrate described above.
• the display device can be, for example, a computer, a flat panel display, a cell phone or other existing electronic display device.
• the display device, the color film substrate and the manufacturing method thereof provided by the invention can effectively reduce the weight of the color film substrate by using any structure in the color film substrate as a hollow body, thereby reducing the weight of the final product and making the product more Light and thin. At the same time, it can effectively avoid the gravity mura effect of the display device, and provide an implementation basis for adding pigments of other colors in the color pixel layer. Improve the quality of the displayed image and improve the user experience.
• a color filter substrate comprising: a substrate, a black matrix and a color pixel layer formed on the substrate, and a spacer formed over the color pixel layer, wherein the black matrix, the color pixel layer, and the spacer At least one of the mats has a hollow body structure.
• the color pixel layer includes at least a red pixel layer, a green pixel layer, and a blue pixel layer.
• color filter substrate according to (1) or (2), wherein the color pixel layer is a hollow body structure, and the color pixel layer includes, in addition to the red pixel layer, the green pixel layer, and the blue pixel layer, White pixel layer, yellow pixel layer, or pixel layer of other colors.
• a display device comprising the color filter substrate of any one of (1) to (4).
• a method for producing a color film substrate comprising:
• At least one of the solid black matrix, the solid color pixel layer, and the solid spacer is formed into a hollow body structure.

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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)
• Optical Filters (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)

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• 2012
  • 2012-05-25 CN CN2012101680836A patent/CN102707485A/zh active Pending
  • 2012-11-20 WO PCT/CN2012/084899 patent/WO2013174113A1/fr not_active Ceased

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