WO2013086905A1 - 半反半透液晶面板 - Google Patents
半反半透液晶面板 Download PDFInfo
- Publication number
- WO2013086905A1 WO2013086905A1 PCT/CN2012/083587 CN2012083587W WO2013086905A1 WO 2013086905 A1 WO2013086905 A1 WO 2013086905A1 CN 2012083587 W CN2012083587 W CN 2012083587W WO 2013086905 A1 WO2013086905 A1 WO 2013086905A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- electrode layer
- color film
- film layer
- crystal panel
- Prior art date
Links
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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
Definitions
- Embodiments of the invention relate to a transflective liquid crystal panel. Background technique
- liquid crystal displays can be classified into transmissive liquid crystal displays, reflective liquid crystal displays, and transflective liquid crystal displays.
- the transmissive liquid crystal display uses backlight as the light source, but can only transmit 10% of the backlight, causing a large amount of power waste.
- the reflective liquid crystal display uses natural light as a light source, so it is extremely energy-saving, but it can only be used in a well-lit environment. , can't be used at night or in the low light. Therefore, a transflective liquid crystal display has emerged, combining the dual advantages of a reflective liquid crystal display and a projection liquid crystal display.
- a thin film transistor 103 is formed on the first glass substrate 101, and a first insulating layer 104 is deposited on the first glass substrate 101, and the first insulating layer 104 is a thin film transistor 103, a first contact hole 1041 is formed in the first insulating layer 104, and an indium tin oxide (ITO) transparent electrode layer 105 is formed on a portion of the first insulating layer 104.
- ITO indium tin oxide
- the prior art forms a portion of the first insulating layer where the reflective region is located.
- the second insulating layer 109 covers the portion of the transparent electrode layer 105 and has a corresponding contact with the first contact hole 1041 and penetrates through the second contact hole 1091.
- An aluminum electrode layer 106 is formed on the second insulating layer 1091.
- the distribution area of the aluminum electrode layer 106 is the reflection area R of the liquid crystal display panel, and the distribution area of the transparent electrode layer 105 is the transmission area ⁇ of the liquid crystal panel.
- the conventional transflective liquid crystal panel 100 further includes a second transparent substrate 102 on which a color filter 107 is formed on the second transparent substrate 102, and on the color filter 107.
- a common electrode layer 108 is also formed.
- the hole distance between the first contact hole 1041 and the second contact hole 1091 is large.
- the alignment film on the aluminum electrode layer 106 and the ITO transparent electrode layer 105 is aligned, the alignment film is unevenly aligned, resulting in uneven alignment of liquid crystal molecules in a place having a height difference, so that when the liquid crystal display panel is set to be dark In the state, the liquid crystal panel should originally display a black screen. Due to the uneven arrangement of the liquid crystal molecules, light leakage may occur, which causes the contrast of the liquid crystal panel to decrease, thereby affecting product quality.
- An embodiment of the present invention provides a transflective liquid crystal panel, comprising: a first transparent substrate and a second transparent substrate disposed opposite to each other; and a liquid crystal layer interposed between the first transparent substrate and the second transparent substrate, a thin film transistor and a first insulating layer are formed on a side of the first transparent substrate facing the second transparent substrate, and the first insulating layer covers the thin film transistor, the first insulating layer a transparent electrode layer and a reflective electrode layer are formed on the upper surface, and the reflective electrode layer and the transparent electrode layer are substantially in the same plane; and a side of the second transparent substrate facing the first transparent substrate is attached a color film layer including a first color film layer portion and a second color film layer portion, the first color film layer portion corresponding to the reflective electrode layer, and the second color film layer portion corresponding to the reflective electrode layer The portion of the transparent electrode layer that does not overlap, the color filter property of the first color film layer portion is smaller than the color filter property of the second color film layer portion.
- Another embodiment of the present invention provides a display device including the above-described transflective liquid crystal panel.
- FIG. 1 is a schematic structural view of a transflective liquid crystal panel provided by the prior art
- FIG. 2 is a schematic structural diagram of a transflective liquid crystal panel according to an embodiment of the present invention. detailed description
- Embodiments of the present invention provide a transflective liquid crystal panel capable of overcoming the uneven distribution of the liquid crystal of the transflective liquid crystal panel and the light leakage caused thereby, thereby improving the product quality.
- the embodiment of the present invention provides a transflective liquid crystal panel 200, including: a first transparent substrate 201 and a second transparent substrate 202 disposed opposite to each other, and interposed between the first transparent substrate 201 and the second transparent substrate 202.
- the liquid crystal layer is
- the first transparent substrate of the transflective liquid crystal panel of the embodiment of the invention may correspond to the array substrate, and the second transparent substrate may correspond to the opposite substrate.
- a plurality of gate lines and a plurality of data lines may be formed on the first transparent substrate, the gate lines and the data lines crossing each other thereby defining pixel units arranged in a matrix, each of the pixel units being included as a switching element
- the thin film transistor and the pixel electrode for controlling the arrangement of the liquid crystal.
- the gate of the thin film transistor of each pixel unit is electrically connected or integrally formed with a corresponding gate line
- the source is electrically connected or integrally formed with the corresponding data line
- the drain is electrically connected or integrally formed with the corresponding pixel electrode.
- the following description is mainly made for a single pixel unit, but other pixel units may be formed identically.
- a thin film transistor 203 and a first insulating layer 204 are formed on a side of the first transparent substrate 201 facing the second transparent substrate 202, and the first insulating layer 204 covers the thin film transistor.
- An ITO transparent electrode layer 205 is formed over a region on one side of the first insulating layer 204; an aluminum electrode layer 206 is formed over the other side region of the first insulating layer 204, and the aluminum electrode layer 206 and the ITO transparent electrode layer 205 are basically In the same plane.
- the pixel unit of the liquid crystal panel is divided into a reflective area and a transmissive area.
- the region where the aluminum electrode layer 206 is distributed defines the reflection region R of the liquid crystal panel, and the distribution region of the portion of the ITO transparent electrode layer 205 not covered by the aluminum electrode layer 206 defines the transmission region of the liquid crystal panel. T, as shown in Figure 2. Since no additional second insulating layer is disposed on the first substrate 201, the color saturation of the reflective region R and the transmissive region T is inconsistent.
- the embodiment removes the second insulating layer while still A color film layer 207 is attached on the second transparent substrate 202, and includes a color film layer portion 2071 and a color film layer portion 2072, and a color film layer portion.
- 2071 is located in the reflective region R corresponding to the aluminum electrode layer 206
- the color film layer portion 2072 is located in the transmissive region T corresponding to the portion of the ITO transparent electrode layer 205 not covered by the aluminum electrode layer 206.
- the color filter of the color filter layer portion 2071 in the reflective region R is smaller than the color filter property of the color filter layer portion 2072 in the transmissive region T.
- the color filterability in this embodiment specifically refers to the color filter ability of the color film layer, that is, an important factor affecting the color saturation, wherein the color filter capability of the color film layer can pass through the light transmittance of the color film layer and the color film.
- the concentration of the pigment in the layer is adjusted.
- the concentration herein is a weight percent concentration. Therefore, the transflective liquid crystal panel 200 according to the embodiment of the present invention can solve the problem of light leakage while making the color saturation of the reflective region R and the transmissive region T uniform.
- the color filter property of the color film layer portion 2071 in the reflective region R is smaller than the color filter property of the color filter layer 2072 corresponding to the transmissive region T.
- One method is: in the color film layer 207 In the process, the photoresist coated in the reflective region R is thinner than the photoresist coated in the transmissive region T, the coated photoresist is dispersed with a pigment, and is used as a color film layer. Other steps are consistent with the prior art and will not be described here.
- the color filter property of the color filter layer portion 2071 in the reflective region R is made smaller than the color filter property of the color filter layer portion 2072 in the transmissive region T, and another method may also be:
- the pigment concentration of the pigment liquid in the photoresist coated in the reflective region R is lower than the pigment concentration of the pigment liquid in the photoresist coated in the transmissive region T, the coated photoresist Used to retain as a color film layer.
- Pigment concentration is one of the main reasons for determining color saturation.
- the pigment liquid further contains a dispersing agent.
- the role of the dispersant in the pigment liquid is to disperse the pigment particles to avoid agglomeration and precipitation. Moreover, there must be a certain proportional relationship between the pigment in the pigment liquid, the tree and the dispersant, that is, one change, the other two will also change to form a stable pigment liquid, otherwise the pigment liquid formed Unstable. Therefore, the present invention is used to form the reflective region R while the pigment concentration of the pigment liquid in the photoresist coated in the reflective region R is lower than the pigment concentration of the pigment liquid in the photoresist coated in the transmissive region T.
- the concentration of the resin and the dispersant in the pigment liquid of the photoresist of the color film layer portion 2071 is also lower than the concentration of the resin and the dispersant in the pigment liquid of the photoresist for forming the color film layer 2072 in the transmissive region, In order to reduce the concentration of the resin while reducing the concentration of the resin and the dispersant, respectively, a stable pigment liquid is formed.
- the pigment liquid used in the photoresist in the reflective region R has a pigment concentration of 6% to 8%.
- the pigment liquid used in the photoresist in the shot region T has a pigment concentration of 12% to 15%.
- a contact hole 2041 is further disposed on the first insulating layer 204, and the contact hole 2041 exposes a drain electrode 2031 of a portion of the thin film transistor 203, and is formed above one side of the first insulating layer 204.
- One end of the transparent electrode layer 205 covers the drain electrode 2031 of the partial thin film transistor 203 in the contact hole 2041, that is, the germanium transparent electrode 205 is electrically connected to the drain electrode 2031 through the contact hole 2041, and is formed on the other side of the first insulating layer 204.
- One end of the aluminum electrode layer 206 above the position covers the transparent electrode layer 205 at the contact hole 2041, that is, the aluminum electrode layer 206 is electrically connected to the tantalum transparent electrode layer 205 through the contact hole 2041.
- a common electrode layer 208 is further formed on the color film layer 207 attached to the second transparent substrate 202, so that the aluminum electrode layer 206, the germanium transparent electrode layer 205 and the common electrode layer 208 are electrically connected.
- the voltage difference makes it possible to control the deflection of the liquid crystal molecules.
- the aluminum electrode layer is directly formed on the upper side of the first insulating layer, and the color filter layer on the second substrate corresponding to the reflective region has a lower color filter property than the second corresponding to the transmissive region.
- the color filter of the color filter layer on the substrate is such that the color saturation of the reflective region and the transmissive region is uniform.
- the second element is formed over the first element means that the second element is formed further from the substrate for carrying the first element and the second element relative to the first element.
- An embodiment of the present invention also provides a display device comprising the transflective liquid crystal panel of any of the above embodiments.
- the display device of the embodiment of the present invention is used, for example, for a liquid crystal television, a mobile phone, a liquid crystal display, GPS, or the like.
- the liquid crystal display device further includes a backlight that provides backlighting for the transflective liquid crystal panel.
- a transflective liquid crystal panel comprising: a first transparent substrate and a second transparent substrate disposed opposite to each other; and a liquid crystal layer interposed between the first transparent substrate and the second transparent substrate,
- a thin film transistor and a first insulating layer are formed on a side of the first transparent substrate facing the second transparent substrate, and the first insulating layer covers the thin film transistor, the first insulating layer a transparent electrode layer and a reflective electrode layer are formed above, and the reflective electrode layer and the transparent electrode layer are substantially in the same plane;
- a color film layer is disposed on a side of the second transparent substrate facing the first transparent substrate, and includes a first color film layer portion and a second color film layer portion, where the first color film layer portion corresponds to The reflective electrode layer, the second color film layer portion corresponds to the transparent electrode layer portion that does not overlap the reflective electrode layer, and the color filter property of the first color film layer portion is smaller than the second color The color filter of the color film layer portion.
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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)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/703,801 US20130155341A1 (en) | 2011-12-14 | 2012-10-26 | Transflective lcd panel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN2011104185963A CN102650782A (zh) | 2011-12-14 | 2011-12-14 | 一种半反半透液晶面板 |
CN201110418596.3 | 2011-12-14 |
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WO2013086905A1 true WO2013086905A1 (zh) | 2013-06-20 |
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PCT/CN2012/083587 WO2013086905A1 (zh) | 2011-12-14 | 2012-10-26 | 半反半透液晶面板 |
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CN (1) | CN102650782A (zh) |
WO (1) | WO2013086905A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102650782A (zh) * | 2011-12-14 | 2012-08-29 | 京东方科技集团股份有限公司 | 一种半反半透液晶面板 |
CN106206432A (zh) * | 2016-08-16 | 2016-12-07 | 京东方科技集团股份有限公司 | 阵列基板、阵列基板的制造方法及显示装置 |
CN110161761A (zh) * | 2019-05-10 | 2019-08-23 | 香港科技大学 | 液晶显示面板及其制作方法以及显示设备 |
CN115167029B (zh) * | 2022-07-01 | 2023-11-28 | Tcl华星光电技术有限公司 | 显示模组及其制作方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1393727A (zh) * | 2001-06-26 | 2003-01-29 | Lg.菲利浦Lcd株式会社 | 透射-反射型液晶显示装置 |
JP2004054117A (ja) * | 2002-07-23 | 2004-02-19 | Sanyo Electric Co Ltd | 液晶表示装置とその製造方法、及びカラーフィルタとその製造方法 |
CN1510477A (zh) * | 2002-12-24 | 2004-07-07 | 统宝光电股份有限公司 | 液晶显示装置 |
CN2727801Y (zh) * | 2004-08-11 | 2005-09-21 | 鸿富锦精密工业(深圳)有限公司 | 半穿透式液晶显示器及彩色滤光片 |
CN1743907A (zh) * | 2005-09-29 | 2006-03-08 | 友达光电股份有限公司 | 半穿透半反射显示单元及彩色滤光基板 |
CN102650782A (zh) * | 2011-12-14 | 2012-08-29 | 京东方科技集团股份有限公司 | 一种半反半透液晶面板 |
-
2011
- 2011-12-14 CN CN2011104185963A patent/CN102650782A/zh active Pending
-
2012
- 2012-10-26 WO PCT/CN2012/083587 patent/WO2013086905A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1393727A (zh) * | 2001-06-26 | 2003-01-29 | Lg.菲利浦Lcd株式会社 | 透射-反射型液晶显示装置 |
JP2004054117A (ja) * | 2002-07-23 | 2004-02-19 | Sanyo Electric Co Ltd | 液晶表示装置とその製造方法、及びカラーフィルタとその製造方法 |
CN1510477A (zh) * | 2002-12-24 | 2004-07-07 | 统宝光电股份有限公司 | 液晶显示装置 |
CN2727801Y (zh) * | 2004-08-11 | 2005-09-21 | 鸿富锦精密工业(深圳)有限公司 | 半穿透式液晶显示器及彩色滤光片 |
CN1743907A (zh) * | 2005-09-29 | 2006-03-08 | 友达光电股份有限公司 | 半穿透半反射显示单元及彩色滤光基板 |
CN102650782A (zh) * | 2011-12-14 | 2012-08-29 | 京东方科技集团股份有限公司 | 一种半反半透液晶面板 |
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CN102650782A (zh) | 2012-08-29 |
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