WO2016074205A1 - 用于曲面屏幕的液晶显示面板 - Google Patents

用于曲面屏幕的液晶显示面板 Download PDF

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Publication number
WO2016074205A1
WO2016074205A1 PCT/CN2014/091060 CN2014091060W WO2016074205A1 WO 2016074205 A1 WO2016074205 A1 WO 2016074205A1 CN 2014091060 W CN2014091060 W CN 2014091060W WO 2016074205 A1 WO2016074205 A1 WO 2016074205A1
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Prior art keywords
area
pixel
display area
display
sub
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PCT/CN2014/091060
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English (en)
French (fr)
Inventor
郑华
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/407,185 priority Critical patent/US9599850B2/en
Publication of WO2016074205A1 publication Critical patent/WO2016074205A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • 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
    • 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
    • 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
    • G02F1/1343—Electrodes

Definitions

  • the present invention relates to a liquid crystal display panel, and more particularly to a liquid crystal display panel that utilizes a black matrix layer to improve the display quality of a curved screen.
  • the space occupied by the conventional flat screen becomes larger, and the use of the curved screen can reduce the space occupied.
  • the curved screen can display a surround effect, providing a better display than a flat screen. Therefore, the application of curved screens is also becoming wider and wider.
  • FIG. 1 is a diagram showing the relationship between brightness and gray scale when the viewer views the curved screen from the front and side views.
  • the grayscale-luminance curve 11 displayed is the standard Gamma. 2.2 Curve.
  • the displayed grayscale-luminance curve 12 deviates from the Gamma 2.2 curve, so the display color seen from the side view angle is distorted.
  • FIG. 2 is a schematic diagram showing the position of the dark area of the curved screen 10.
  • the process of using the TFT-LCD panel as the curved screen 10 is the same as the method of manufacturing the flat screen, and then the entire module is bent to form the curved screen 10.
  • the curved screen 14 may have a dark area 14 in the region of the bending. Since the curved curved screen 10 causes the thin film transistor substrate and the color filter substrate to be misaligned, the region where the bending angle is larger is more serious.
  • the misaligned area causes a decrease in light transmittance to form a dark area 14.
  • the brightness of the dark area 14 is only 60% to 80% of the brightness of the center point of the curved screen 10.
  • the technical problem to be solved by the present invention is to improve the technical problem that the curved screen forms a dark area due to the misalignment of the thin film transistor substrate and the color filter substrate, resulting in uneven brightness of the display screen.
  • the present invention provides a liquid crystal display panel for a curved screen, comprising a plurality of display areas and a black matrix layer, each display area comprising a plurality of pixel units, each of the pixel units comprising a
  • the main pixel and the primary pixel, the plurality of display areas include a central display area, a first display area, and a second display area.
  • the central display area is located in an intermediate area of the liquid crystal display panel.
  • the first display area is located between the second display area and the central display area.
  • the black matrix layer is configured to adjust an area of the main pixel and the sub-pixel of each display area such that an area ratio of a sub-pixel and a main pixel of the first display area is equal to a sub-pixel of the central display area And an area ratio of the main pixel, the area ratio of the sub-pixel and the main pixel of the second display area is larger than an area ratio of the sub-pixel and the main pixel of the first display area, and an area of the main pixel of the central display area is smaller than The area of the main pixel of the first display area is larger than the area of the main pixel of the second display area.
  • the area ratio of the sub-pixel and the main pixel of the first display area is between 1.1 and 1.3.
  • the area ratio of the sub-pixel to the main pixel of the first display area is equal to 1.2.
  • the ratio of the area of the main pixel of the central display area to the area of the main pixel of the first display area is 0.7.
  • the area ratio of the sub-pixel to the main pixel of the second display area is equal to 1.5.
  • the ratio of the area of the main pixel of the second display area to the area of the main pixel of the first display area is 0.66.
  • the first display area is elliptical.
  • the plurality of display areas further include a plurality of first transition display areas, sequentially surrounding the first display area, and an area of the sub-pixels of the first transition display area is different from the first Between an area of a sub-pixel of a display area and an area of a sub-pixel of the central display area, an area of a main pixel of the first transition display area is larger than an area of the main pixel of the first display area and the center display The area of the main pixel of the area is proportionally decreasing from the inside to the outside.
  • the plurality of display areas further comprise a plurality of second transition display areas between the first display area and the second display area, and the plurality of second transition display areas
  • the area of the sub-pixel is between the area of the sub-pixel of the first display area and the area of the sub-pixel of the second display area
  • the area of the main pixel of the second transition display area is between the first display area
  • the area of the main pixel of the second display area is between the first display area
  • the area of the main pixel and the area of the main pixel of the second display area and proportionally decreasing from one side of the first display area to one side of the second display area.
  • the first display area is located in a region where the liquid crystal display panel has the largest bending angle.
  • the invention provides a liquid crystal display panel for a curved screen, and controls the main pixels of the different display areas and the area of the sub-pixels through the black matrix layer to adjust the display brightness of the curved screen, thereby improving the image quality of the curved screen.
  • Figure 1 is a graph showing the relationship between brightness and gray scale when a viewer views a curved screen from a front view and a side view.
  • Fig. 2 is a schematic view showing the position of a dark area on a curved screen.
  • FIG. 3 is a schematic view of a liquid crystal display panel to which the present invention is applied to a curved screen.
  • Figure 4 is a cross-sectional view showing a liquid crystal display panel of the present invention.
  • FIG. 5 is a top view of a pixel unit.
  • Fig. 6 is a schematic view showing the division of different display areas by the liquid crystal display panel applied to the curved screen of the present invention.
  • FIG. 7 is a schematic diagram of the main pixel and sub-pixel area of the pixel unit adjusted by the black matrix layer of the present invention.
  • FIG. 3 is a schematic diagram of the liquid crystal display panel 100 applied to the display 20 of the present invention
  • FIG. 4 is a cross-sectional view of the liquid crystal display panel 100 of the present invention.
  • the display 20 includes a gate driver 22, a source driver 24, and a liquid crystal display panel 100.
  • the liquid crystal display panel 100 of the present invention is applied to a curved screen.
  • the liquid crystal display panel 100 includes a thin film transistor substrate 120, a color filter substrate 122, and a liquid crystal layer 126.
  • the liquid crystal layer 126 is located between the thin film transistor substrate 120 and the color filter substrate 122.
  • the color filter substrate 122 includes a black matrix layer 125 and a color film layer 126.
  • the liquid crystal display panel 100 separates the light of the three primary colors of red, green and blue by the color film layer 126 to display a color image.
  • the black matrix layer 125 is used to avoid light leakage.
  • the thin film transistor substrate 120 includes a plurality of data lines 102, a plurality of scanning lines 104, and a plurality of pixel units 110.
  • FIG. 5 illustrates a top view of the pixel unit 110 .
  • the thin film transistor substrate 120 further includes a plurality of control voltage lines 106 and a plurality of common electrodes 108.
  • Each pixel unit 110 is electrically connected to a data line 102, a scan line 104, a control voltage line 106, and a common electrode 108.
  • Each pixel unit 110 includes a first transistor 111, a second transistor 112, a third transistor 113, a storage capacitor 117, a main pixel 114, and a sub-pixel 116. Since the connection relationship of each pixel unit 110 is the same, in order to simplify the drawing, FIG. 5 only shows one pixel unit 110. As shown in FIG.
  • the gate of the first transistor 111 is coupled to the scan line 104 , the source of the first transistor 111 is coupled to the data line 102 , and the drain of the first transistor 111 is coupled to the main pixel 114 .
  • the gate of the second transistor 112 is coupled to the scan line 104, the source of the second transistor 112 is coupled to the data line 102, and the drain of the second transistor 112 is coupled to the sub-pixel 116.
  • the gate of the third transistor 113 is coupled to the control voltage line 106, the source of the third transistor 113 is coupled to the drain of the second transistor 112 and the sub-pixel 116, and the drain of the third transistor 113 is coupled to the storage capacitor. 117.
  • Control voltage line 106 is used to provide a control signal.
  • the driving manner of the liquid crystal display panel 100 is as follows: the scan signal output from the gate driver 22 is input through the scan line 104, so that the first transistor 111 and the second transistor 112 connected to the scan line 104 are sequentially turned on, while the source driver 24 is turned on.
  • the corresponding data signal is outputted to the first transistor 111 and the second transistor 112 through the data line 102, and the first transistor 111 and the second transistor 112 pass the data signal to the main pixel 114 and the sub-pixel 116 to charge it to The required voltage.
  • the liquid crystal above the main pixel 114 and the sub-pixel 116 is twisted according to the voltage difference between the data signal and the common voltage of the common electrode 108, thereby displaying different gray levels, and the brightness of the main pixel 114 and the sub-pixel 116 at this time. the same.
  • the scan line 104 does not transmit the scan signal
  • the first transistor 111 and the second transistor 112 are turned off, and the control signal provided by the control voltage line 106 turns on the third transistor 113, so that the voltage applied to the sub-pixel 116 is stored by the capacitor. 117 shared and reduced.
  • the brightness of the sub-pixel 116 may be lower than the main pixel 114.
  • the gate driver outputs the scan signals row by row through the plurality of scan lines 104 to turn on the first transistor 111 and the second transistor 112 of each row, and then the source driver drives the main pixel 114 and the sub-pixel 116 of each row. Discharge. In this way, the complete display of the liquid crystal display panel 100 can be completed. By the difference in luminance between the sub-pixel 116 and the main pixel 114, the problem of visual color shift can be improved.
  • FIG. 6 is a schematic diagram of the liquid crystal display panel 100 of the present invention applied to a curved screen dividing different display areas.
  • the liquid crystal display panel 100 includes a central display area 150, a first display area 151, a plurality of first transition display areas 1611 to 161n, a second display area 152, and a plurality of second transition display areas 1621 to 162n.
  • the center display area 150 is located in an intermediate area of the liquid crystal display panel 100.
  • the first display area 151 is located between the second display area 152 and the central display area 150, and the first display area 151 is located at an area where the bending angle of the liquid crystal display panel 110 is the largest.
  • the first display area 151 is substantially elliptical.
  • the second display area 152 is located at both ends of the liquid crystal display panel 100, and each of the second display areas 152 has a width of about 1/8 to 1/12 of the liquid crystal display panel 100.
  • FIG. 7 is a schematic diagram of adjusting the area of the main pixel 114 and the sub-pixel 116 of the pixel unit 110 by the black matrix layer 125.
  • the area of the black matrix layer 125 can adjust the area of the main pixel 114 and the sub-pixel 116 of each display area.
  • the area ratio of the sub-pixel 116 and the main pixel 114 of the first display area 151 is equal to the area ratio of the sub-pixel 116 and the main pixel 114 of the central display area 150, and the sub-pixel 116 and the main of the second display area 152.
  • the area ratio of the pixel 114 is greater than the area ratio of the sub-pixel 116 and the main pixel 114 of the first display area 151.
  • the area of the main pixel 114 of the central display area 150 is smaller than the area of the main pixel 114 of the first display area 151, and is larger than the second.
  • the area ratio of the sub-pixel 116 and the main pixel 114 of the first display area 151 is between 1.1 and 1.3.
  • the area ratio of the sub-pixel 116 and the main pixel 114 of the first display area 151 is equal to 1.2.
  • the ratio of the area of the main pixel 114 of the center display area 150 to the area of the main pixel 114 of the first display area 151 is 0.7.
  • the area ratio of the sub-pixel 116 and the main pixel 114 of the second display area 152 is equal to 1.5.
  • the ratio of the area of the main pixel 114 of the second display area 152 to the area of the main pixel 114 of the first display area 151 is 0.66.
  • the second display area 152 Since the area of the main pixel 114 of the second display area 152 is smaller than the area of the main pixel 114 of the central display area 150, and the area of the sub-pixel 116 of the second display area 152 is larger than the area of the sub-pixel 116 of the central display area 150, the second display The brightness of the area 152 is close to the brightness of the central display area 150.
  • the area ratio of the sub-pixel 116 and the main pixel 114 of the second display area 152 is equal to 1.5 (the area ratio of the sub-pixel 116 and the main pixel 114 of the central display area 150 is equal to 1.2), so the second display
  • the color shift effect of the area 152 is improved compared to the center display area 150, so that the color shift difference of the entire liquid crystal display panel 100 is also small.
  • the plurality of first transition display areas 1611 to 161n sequentially surround the first display area 151. All of the first transition display areas 1611 161 161 n have a width of about 5 to 20 cm, and each of the first transition display areas 1621 162 162 n is substantially elliptical.
  • the area of the sub-pixel 116 of the plurality of first transition display regions 1611 161 161n is between the area of the sub-pixel 116 of the first display area 151 and the area of the sub-pixel 116 of the central display area 150, and the plurality of first transition display areas
  • the area of the main pixel 114 of 1611 ⁇ 161n is between the area of the main pixel 114 of the first display area 151 and the area of the main pixel 114 of the central display area 150, and the sub-pixels of the plurality of first transition display areas 1611 ⁇ 161n
  • the area of 116 and main pixel 114 are both proportionally decreasing from the inside to the outside.
  • the area of the main pixel 114 (or the sub-pixel 116) of the first display area 151 is 100 and the area of the main pixel 114 (or the sub-pixel 116) of the central display area 150 is 70, and there are 10 first In the transition display area, the area of the main pixel 114 (or the sub-pixel 116) of the first transition display areas 1611 to 161n is sequentially 97, 94, ..., 73 from the inside to the outside.
  • the plurality of second transition display areas 1621 to 162n are sequentially arranged between the first display area 151 and the second display area 152. All of the second transition display areas 1621 to 162n have a width of about 5 to 20 cm, and each of the second transition display areas 1621 to 162n has a substantially elongated shape.
  • the area of the sub-pixel 116 of the plurality of second transition display regions 1621 162 162n is between the area of the sub-pixel 116 of the first display area 151 and the area of the sub-pixel 116 of the second display area 152, and the plurality of second transition displays
  • the area of the main pixel 114 of the regions 1621 to 162n is between the area of the main pixel 114 of the first display area 151 and the area of the main pixel 114 of the second display area 152, and the plurality of second transition display areas 1621 to 162n
  • the areas of the sub-pixel 116 and the main pixel 114 are all proportionally decremented from one side of the first display area 151 to one side of the second display area 152.
  • the area of the main pixel 114 (or the sub-pixel 116) of the first display area 151 is 100 and the area of the main pixel 114 (or the sub-pixel 116) of the second display area 152 is 70, and there are 10 In a transition display area, the area of the main pixel 114 (or the sub-pixel 116) of the second transition display area 1621 ⁇ 162n is sequentially 97 from the side of the first display area 151 to the side of the second display area 152. 94, ..., 73.
  • the present invention divides the liquid crystal display panel for the curved screen into three display areas, and adjusts the area size and the area ratio of the main pixels and the sub-pixels of the three display areas by using the black matrix layer. Improve the color cast of the dark areas of the curved screen and the side view viewers.

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

Abstract

提供了一种用于曲面屏幕的液晶显示面板（100），其包含多个显示区以及黑色矩阵层（125），第一显示区（151）位于第二显示区（152）和中心显示区（150）之间，黑色矩阵层（125）用来调整每一显示区的主像素（114）及次像素（116）的面积，使得第一显示区（151）的次像素（116）和主像素（114）的面积比值等于中心显示区（150）的次像素（116）和主像素（114）的面积比值，第二显示区（152）的次像素（116）和主像素（114）的面积比值大于第一显示区（151）的次像素（116）和主像素（114）的面积比值，中心显示区（150）的主像素（114）的面积小于第一显示区（151）的主像素（114）的面积，且大于第二显示区（152）的主像素（114）的面积。将用于曲面屏幕的液晶显示面板（100）分为三个显示区（150，151，152），利用黑色矩阵层（125）调整三个显示区（150，151，152）的主像素（114）和次像素（116）的面积大小和面积比值，可同时改善曲面屏幕的暗区和侧视观众的色偏现象。

Description

用于曲面屏幕的液晶显示面板 技术领域
本发明涉及一种液晶显示面板，尤其涉及一种利用黑色矩阵层改善曲面屏幕显示质量的液晶显示面板。
 背景技术
随着显示屏幕的尺寸变大，传统的平面屏幕占用的空间也随之变大，使用曲面屏幕可以减少占用空间。此外，曲面屏幕可以显示出环绕画面效果，提供比平面屏幕更佳的显示效果。因此曲面屏幕的应用也越来越广。
然而，使用薄膜晶体管液晶显示器(Thin film transistor liquid crystal display，TFT-LCD)面板作为曲面屏幕仍有缺点需要改善。请参阅图1，图1为观众从正视和侧视角度观看曲面屏幕时，亮度与灰阶的关系图。当观众在正视角度观看曲面屏幕时，其显示的灰阶-亮度曲线11为标准的Gamma 2.2曲线。当观众在侧视角度观看曲面屏幕时，其显示的灰阶-亮度曲线12则偏离了Gamma 2.2曲线，因此从侧视角度看到的显示颜色会失真。
请参阅图2，图2是曲面屏幕10显示暗区位置的示意图。采用TFT-LCD面板做为曲面屏幕10的制程与制造平板屏幕方法相同，之后再将整个模组进行弯曲，形成曲面屏幕10。然而曲面屏幕10在弯折（bending）的区域会出现暗区14。由于弯折后的曲面屏幕10会导致薄膜晶体管基板和彩色滤光基板错位(misalignment)，弯折角度越大的区域，错位也越严重。错位区域导致光线穿透率降低而形成暗区14。一般而言，暗区14亮度只有曲面屏幕10的中心点亮度的60%~80%。
暗区的存在会导致观众看到亮度不均的画面，因此降低曲面屏幕10的显示质量。
 技术问题
本发明主要解决的技术问题是改善曲面屏幕因薄膜晶体管基板和彩色滤光基板错位而形成暗区，导致显示画面亮度不均的技术问题。
 技术解决方案
为了解决现有技术的问题，本发明提供了一种用于曲面屏幕的液晶显示面板，其包含多个显示区以及黑色矩阵层，每一显示区包含多个像素单元，每一像素单元包含一主像素以及一次像素，所述多个显示区包含中心显示区、第一显示区以及第二显示区。所述中心显示区位于该液晶显示面板的中间区域。所述第一显示区位于所述第二显示区和所述中心显示区之间。所述黑色矩阵层用来调整每一显示区的所述主像素以及所述次像素的面积，使得所述第一显示区的次像素和主像素的面积比值等于所述中心显示区的次像素和主像素的面积比值，所述第二显示区的次像素和主像素的面积比值大于所述第一显示区的次像素和主像素的面积比值，所述中心显示区的主像素的面积小于所述第一显示区的主像素的面积，且大于所述第二显示区的主像素的面积。
依据本发明的实施例，所述第一显示区的次像素和主像素的面积比值位于1.1~1.3之间。
依据本发明的实施例，所述第一显示区的次像素和主像素的面积比值等于1.2。
依据本发明的实施例，所述中心显示区的主像素的面积与所述第一显示区的主像素的面积的比值是0.7。
依据本发明的实施例，所述第二显示区的次像素和主像素的面积比值等于1.5。
依据本发明的实施例，所述第二显示区的主像素的面积与所述第一显示区的主像素的面积的比值是0.66。
依据本发明的实施例，所述第一显示区呈椭圆型。
依据本发明的实施例，所述多个显示区另包含多个第一过渡显示区，依序环绕所述第一显示区，所述第一过渡显示区的次像素的面积介于所述第一显示区的次像素的面积和所述中心显示区的次像素的面积之间，第一过渡显示区的主像素的面积介于所述第一显示区的主像素的面积和所述中心显示区的主像素的面积之间，且由内向外呈比例递减。
依据本发明的实施例，所述多个显示区另包含多个第二过渡显示区，位于所述第一显示区和所述第二显示区之间，所述多个第二过渡显示区的次像素的面积介于所述第一显示区的次像素的面积和所述第二显示区的次像素的面积之间，第二过渡显示区的主像素的面积介于所述第一显示区的主像素的面积和所述第二显示区的主像素的面积之间，且由位于所述第一显示区的一侧向所述第二显示区的一侧呈比例递减。
依据本发明的实施例，所述第一显示区位于所述液晶显示面板弯曲角度最大的区域。
 有益效果
本发明提供一种用于曲面屏幕的液晶显示面板，通过黑色矩阵层控制不同显示区的主像素以及次像素的面积，以调整曲面屏幕的显示亮度，进而改善曲面屏幕的影像品质。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为观众从正视和侧视角度观看曲面屏幕时，亮度与灰阶的关系图。
图2是曲面屏幕显示暗区位置的示意图。
图3是本发明应用于曲面屏幕的液晶显示面板的示意图。
图4是本发明液晶显示面板的剖面图。
图5绘示像素单元俯视图。
图6是本发明应用于曲面屏幕的液晶显示面板划分不同显示区的示意图。
图7是本发明通过黑色矩阵层调整像素单元的主像素以及次像素面积的示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施之特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「顶」、「底」、「水平」、「垂直」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参阅图3和图4，图3是本发明应用于显示器20的液晶显示面板100的示意图，图4是本发明液晶显示面板100的剖面图。显示器20包含栅极驱动器22、源极驱动器24和液晶显示面板100。本发明的液晶显示面板100是应用于曲面屏幕。液晶显示面板100包含薄膜晶体管基板120、彩色滤光基板122和液晶层126。液晶层126位于薄膜晶体管基板120和彩色滤光基板122之间。彩色滤光基板122包含黑色矩阵层125以及彩色膜层126。液晶显示面板100便是藉由彩色膜层126，来分离出红绿蓝三原色的光，以显示彩色影像。黑色矩阵层125用来避免漏光。薄膜晶体管基板120包含数条数据线102、数条扫描线104和数个像素单元110。
请参阅图5，图5绘示像素单元110俯视图。薄膜晶体管基板120还包含数条控制电压线106和数条共通电极108。每一像素单元110电性连接于一数据线102、一扫描线104、一控制电压线106和一共通电极108。每一像素单元110包含第一晶体管111、第二晶体管112、第三晶体管113、存储电容117、主像素114以及次像素116。由于每一像素单元110的连接关系相同，因此为简化图式，图5仅绘示一像素单元110。如图5所示，第一晶体管111的栅极耦接到扫描线104，第一晶体管111的源极则耦接至数据线102，第一晶体管111的漏极耦接到主像素114。第二晶体管112的栅极耦接到扫描线104，第二晶体管112的源极则耦接至数据线102，第二晶体管112的漏极耦接到次像素116。第三晶体管113的栅极耦接到控制电压线106，第三晶体管113的源极则耦接至第二晶体管112的漏极和次像素116，第三晶体管113的漏极耦接到存储电容117。控制电压线106用来提供一控制信号。
液晶显示面板100的驱动方式如下所述：栅极驱动器22输出的扫描信号通过扫描线104输入，使得连接扫描线104的第一晶体管111和第二晶体管112依序开启，同时源极驱动器24则输出对应的数据信号，通过数据线102输入至第一晶体管111和第二晶体管112，而第一晶体管111和第二晶体管112则将数据信号传递至主像素114以及次像素116，使其充电到所需的电压。而主像素114以及次像素116上方的液晶就是依据该数据信号和共通电极108的共通电压的电压差扭转(twist)，进而显示出不同的灰阶，此时主像素114以及次像素116的亮度相同。当扫描线104没有传送扫描信号时，第一晶体管111和第二晶体管112会关闭，此时控制电压线106提供的控制信号会开启第三晶体管113，使得施加于次像素116的电压被存储电容117所分享而降低。此时，次像素116的亮度会低于主像素114。栅极驱动器会通过数条扫描线104一行接一行地输出扫描信号以将每一行的第一晶体管111和第二晶体管112打开，再由源极驱动器对每一行的主像素114以及次像素116进行充放电。如此依序下去，便可完成液晶显示面板100的完整显示。通过次像素116和主像素114的亮度差异，可以改善视觉上色偏的问题。
请参阅图6，图6是本发明应用于曲面屏幕的液晶显示面板100划分不同显示区的示意图。液晶显示面板100包含中心显示区150、第一显示区151、数个第一过渡显示区1611~161n、第二显示区152以及数个第二过渡显示区1621~162n。中心显示区150位于液晶显示面板100的中间区域。第一显示区151位于第二显示区152和中心显示区150之间，第一显示区151位于液晶显示面板110弯曲角度最大的区域。第一显示区151大致上呈椭圆型。第二显示区152位于液晶显示面板100的两侧末端，每一第二显示区152的宽度大约为液晶显示面板100的1/8~1/12。
请一并参阅图4、图6和图7，图7是本发明通过黑色矩阵层125调整像素单元110的主像素114以及次像素116面积的示意图。黑色矩阵层125的面积可以调整每一显示区的主像素114以及次像素116的面积。在本实施例中，第一显示区151的次像素116和主像素114的面积比值等于中心显示区150的次像素116和主像素114的面积比值，第二显示区152的次像素116和主像素114的面积比值大于第一显示区151的次像素116和主像素114的面积比值，中心显示区150的主像素114的面积小于第一显示区151的主像素114的面积，且大于第二显示区152的主像素114的面积。
举例来说，第一显示区151的次像素116和主像素114的面积比值位于1.1~1.3之间。较佳地，第一显示区151的次像素116和主像素114的面积比值等于1.2。中心显示区150的主像素114的面积与第一显示区151的主像素114的面积的比值是0.7。第二显示区152的次像素116和主像素114的面积比值等于1.5。第二显示区152的主像素114的面积与第一显示区151的主像素114的面积的比值是0.66。
由上述数据可知，由于第一显示区151和中心显示区150的次像素116以及主像素114的面积比值相同，但是中心显示区150的主像素114以及次像素116的面积都只有第一显示区151的主像素114以及次像素116的面积的0.7，所以第一显示区151和中心显示区150的色偏效果相同，且亮度相同。
由于第二显示区152的主像素114面积小于中心显示区150的主像素114的面积，且第二显示区152的次像素116面积大于中心显示区150的次像素116的面积，所以第二显示区152的亮度接近中心显示区150的亮度。相较于中心显示区150，第二显示区152的次像素116和主像素114的面积比值等于1.5(中心显示区150的次像素116和主像素114的面积比值等于1.2)，所以第二显示区152的色偏效果较中心显示区150改善，故整片液晶显示面板100的色偏差异也会变小。
为了避免第一显示区151和中心显示区150的显示差异变动明显，数个第一过渡显示区1611~161n依序环绕第一显示区151。全部的第一过渡显示区1611~161n的宽度大约为5~20公分，每一第一过渡显示区1621~162n大致呈椭圆型。多个第一过渡显示区1611~161n的次像素116的面积介于第一显示区151的次像素116的面积和中心显示区150的次像素116的面积之间，多个第一过渡显示区1611~161n的主像素114的面积介于第一显示区151的主像素114的面积和中心显示区150的主像素114的面积之间，且多个第一过渡显示区1611~161n的次像素116和主像素114的面积皆由内向外呈比例递减。举例来说，若第一显示区151的主像素114(或次像素116)的面积为100和中心显示区150的主像素114(或次像素116)的面积为70，且有10个第一过渡显示区，则第一过渡显示区1611~161n的主像素114(或次像素116)的面积由内而外依序为97、94、……、73。
为了避免第一显示区151和第二显示区152的显示差异变动明显，数个第二过渡显示区1621~162n依序排列介于第一显示区151和第二显示区152之间。全部的第二过渡显示区1621~162n的宽度大约为5~20公分，每一第二过渡显示区1621~162n大致呈长条状。多个第二过渡显示区1621~162n的次像素116的面积介于第一显示区151的次像素116的面积和第二显示区152的次像素116的面积之间，多个第二过渡显示区1621~162n的主像素114的面积介于第一显示区151的主像素114的面积和第二显示区152的主像素114的面积之间，且多个第二过渡显示区1621~162n的次像素116和主像素114的面积皆由位于第一显示区151的一侧向第二显示区152的一侧呈比例递减。举例来说，若第一显示区151的主像素114(或次像素116)的面积为100和第二显示区152的主像素114(或次像素116)的面积为70，且有10个第一过渡显示区，则第二过渡显示区1621~162n的主像素114(或次像素116)的面积由位于第一显示区151的一侧向第二显示区152的一侧依序为97、94、……、73。
相较于现有技术，本发明将用于曲面屏幕的液晶显示面板分为三个显示区，利用黑色矩阵层调整该三个显示区的主像素和次像素的面积大小和面积比值，可同时改善曲面屏幕的暗区和侧视观众的色偏现象。
综上所述，虽然本发明已以较佳实施例揭露如上，但该较佳实施例并非用以限制本发明，该领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种用于曲面屏幕的液晶显示面板，其包含多个显示区以及黑色矩阵层，每一显示区包含多个像素单元，每一像素单元包含一主像素以及一次像素，其中所述多个显示区包含：
    中心显示区，位于该液晶显示面板的中间区域；
    第一显示区；
    第二显示区，所述第一显示区位于所述第二显示区和所述中心显示区之间；
    多个第一过渡显示区，依序环绕所述第一显示区；以及
    多个第二过渡显示区，位于所述第一显示区和所述第二显示区之间；
    其中所述黑色矩阵层用来调整每一显示区的所述主像素以及所述次像素的面积，使得所述第一显示区的次像素和主像素的面积比值等于所述中心显示区的次像素和主像素的面积比值，所述第二显示区的次像素和主像素的面积比值大于所述第一显示区的次像素和主像素的面积比值，所述中心显示区的主像素的面积小于所述第一显示区的主像素的面积，且大于所述第二显示区的主像素的面积，所述第一过渡显示区的次像素的面积介于所述第一显示区的次像素的面积和所述中心显示区的次像素的面积之间，所述第一过渡显示区的主像素的面积介于所述第一显示区的主像素的面积和所述中心显示区的主像素的面积之间，且由内向外呈比例递减，所述多个第二过渡显示区的次像素的面积介于所述第一显示区的次像素的面积和所述第二显示区的次像素的面积之间，所述第二过渡显示区的主像素的面积介于所述第一显示区的主像素的面积和所述第二显示区的主像素的面积之间，且由位于所述第一显示区的一侧向所述第二显示区的一侧呈比例递减。
  2. 如权利要求1所述的液晶显示面板，其中所述第一显示区的次像素和主像素的面积比值位于1.1~1.3之间。
  3. 如权利要求2所述的液晶显示面板，其中所述第一显示区的次像素和主像素的面积比值等于1.2。
  4. 如权利要求1所述的液晶显示面板，其中所述中心显示区的主像素的面积与所述第一显示区的主像素的面积的比值是0.7。
  5. 如权利要求1所述的液晶显示面板，其中所述第二显示区的次像素和主像素的面积比值等于1.5。
  6. 如权利要求1所述的液晶显示面板，其中所述第二显示区的主像素的面积与所述第一显示区的主像素的面积的比值是0.66。
  7. 如权利要求1所述的液晶显示面板，其中所述第一显示区呈椭圆型。
  8. 如权利要求1所述的液晶显示面板，其中所述第一显示区位于所述液晶显示面板弯曲角度最大的区域。
  9. 一种用于曲面屏幕的液晶显示面板，其包含多个显示区以及黑色矩阵层，每一显示区包含多个像素单元，每一像素单元包含一主像素以及一次像素，其中所述多个显示区包含：
    中心显示区，位于该液晶显示面板的中间区域；
    第一显示区；以及
    第二显示区，所述第一显示区位于所述第二显示区和所述中心显示区之间；
    其中所述黑色矩阵层用来调整每一显示区的所述主像素以及所述次像素的面积，使得所述第一显示区的次像素和主像素的面积比值等于所述中心显示区的次像素和主像素的面积比值，所述第二显示区的次像素和主像素的面积比值大于所述第一显示区的次像素和主像素的面积比值，所述中心显示区的主像素的面积小于所述第一显示区的主像素的面积，且大于所述第二显示区的主像素的面积。
  10. 如权利要求9所述的液晶显示面板，其中所述第一显示区的次像素和主像素的面积比值位于1.1~1.3之间。
  11. 如权利要求10所述的液晶显示面板，其中所述第一显示区的次像素和主像素的面积比值等于1.2。
  12. 如权利要求9所述的液晶显示面板，其中所述中心显示区的主像素的面积与所述第一显示区的主像素的面积的比值是0.7。
  13. 如权利要求9所述的液晶显示面板，其中所述第二显示区的次像素和主像素的面积比值等于1.5。
  14. 如权利要求9所述的液晶显示面板，其中所述第二显示区的主像素的面积与所述第一显示区的主像素的面积的比值是0.66。
  15. 如权利要求9所述的液晶显示面板，其中所述第一显示区呈椭圆型。
  16. 如权利要求9所述的液晶显示面板，其中所述多个显示区另包含多个第一过渡显示区，依序环绕所述第一显示区，所述第一过渡显示区的次像素的面积介于所述第一显示区的次像素的面积和所述中心显示区的次像素的面积之间，所述第一过渡显示区的主像素的面积介于所述第一显示区的主像素的面积和所述中心显示区的主像素的面积之间，且由内向外呈比例递减。
  17. 如权利要求9所述的液晶显示面板，其中所述多个显示区另包含多个第二过渡显示区，位于所述第一显示区和所述第二显示区之间，所述多个第二过渡显示区的次像素的面积介于所述第一显示区的次像素的面积和所述第二显示区的次像素的面积之间，所述第二过渡显示区的主像素的面积介于所述第一显示区的主像素的面积和所述第二显示区的主像素的面积之间，且由位于所述第一显示区的一侧向所述第二显示区的一侧呈比例递减。
  18. 如权利要求9所述的液晶显示面板，其中所述第一显示区位于所述液晶显示面板弯曲角度最大的区域。
PCT/CN2014/091060 2014-11-10 2014-11-14 用于曲面屏幕的液晶显示面板 Ceased WO2016074205A1 (zh)

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CN106444136A (zh) * 2016-10-08 2017-02-22 武汉华星光电技术有限公司 曲面显示面板及其非中心像素的开口尺寸的获取方法
CN107024810B (zh) * 2017-03-14 2020-05-12 惠科股份有限公司 曲面显示屏及制造方法
CN107357069A (zh) * 2017-07-25 2017-11-17 惠科股份有限公司 一种曲面显示面板及显示器
CN114049272B (zh) * 2021-11-11 2023-06-09 上海傲显科技有限公司 屏幕图像处理方法、屏幕组件和计算机存储介质
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