WO2016201721A1 - 拼接显示屏 - Google Patents

拼接显示屏 Download PDF

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Publication number
WO2016201721A1
WO2016201721A1 PCT/CN2015/082630 CN2015082630W WO2016201721A1 WO 2016201721 A1 WO2016201721 A1 WO 2016201721A1 CN 2015082630 W CN2015082630 W CN 2015082630W WO 2016201721 A1 WO2016201721 A1 WO 2016201721A1
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Prior art keywords
display
display screen
liquid crystal
parameter
spliced
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French (fr)
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谢畅
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a spliced display screen.
  • the package area of the display does not display the picture. Due to limitations of the prior art, some display screens have a particularly wide package area that affects the visual effect.
  • OLED Organic Electroluminescent Display
  • the organic material of OLED is very sensitive to water vapor and oxygen, contact with water vapor and oxygen accelerates the aging of organic materials of OLED.
  • the organic material of the OLED must be effectively encapsulated. Therefore, the sealing frame of the OLED is relatively wide, which affects the visible area of the OLED.
  • the display panel is often used to expand the display area.
  • the display area of the display screen needs to be installed and wrapped. Therefore, when multiple display screens are spliced, the picture will be divided by the frame, which destroys the continuity and integrity of the picture and seriously affects the visual effect of the splicing.
  • the present invention proposes a spliced display screen.
  • the spliced display screen can overcome the problem that the OLED visible area is relatively small or the spliced display screen is divided by the frame.
  • a spliced display screen comprising:
  • a main display having a first seal frame or a first frame
  • a secondary liquid crystal display which is disposed at a first sealing frame or a first frame of at least one side of the main display, the secondary liquid crystal display has a second frame, and the width of the second frame is smaller than the first sealing frame or the first The width of the border,
  • An image splitter that separates image signals and transmits them to the main display and the sub liquid crystal display for display.
  • the primary display screen is an organic electroluminescent display having a first encapsulation frame, an organic electroluminescent display A sub liquid crystal display is disposed at each of the first sealing frames of the screen.
  • a step is provided on the surface of the organic electroluminescent display such that the surface at the first encapsulation frame is lower than the surface of the display area of the main display screen.
  • a color corrector is further included, the color corrector configured to correct an image signal of the organic electroluminescent display such that the colors of the organic electroluminescent display and the secondary liquid crystal display are identical.
  • the color corrector includes a display parameter format conversion module and a chroma and saturation adjustment module
  • the chroma and saturation adjustment module includes a preset lookup table
  • the display parameter format conversion module is configured to The display parameters of the RGB format are converted into YCbCr parameters, and the chroma and saturation adjustment module searches and rewrites the new YCbCr parameters in the lookup table according to the YCbCr parameters, and displays the parameter format conversion module to convert the new YCbCr parameters into the new RGB format.
  • the display parameters are transmitted to the organic electroluminescent display for display.
  • the main display screen is a plurality of main liquid crystal displays having a first frame, adjacent main liquid crystal displays are docked, and the first frame of the docking is covered with a sub liquid crystal display.
  • the secondary liquid crystal display is straddle over the first border of the docking.
  • the secondary liquid crystal display is configured in a strip shape.
  • the secondary liquid crystal display is bonded to the first encapsulation frame or the first bezel.
  • the width of the second bezel is no greater than 0.4 mm.
  • the invention has the advantages that the prior art liquid crystal display can be made into a narrow frame or by providing a sub liquid crystal display at the first sealing frame or the first frame of the main display screen.
  • the advantage of no border is to effectively increase the visible area of the main display or eliminate the influence of the first border between the spliced main display on the image.
  • the liquid crystal display screen of the prior art can be used to achieve a very thin advantage, and the sub liquid crystal display screen is disposed on the main display screen, which basically does not bring a visually obvious effect.
  • the image splitter the image integrity of the primary display and the secondary liquid crystal display can be ensured, and the visual effect of the spliced display can be ensured.
  • Figure 1 shows a block diagram of a first embodiment of a spliced display screen in accordance with the present invention
  • Figure 2 shows a plan view of a second embodiment of a spliced display screen in accordance with the present invention
  • Figure 3 shows a front view of a second embodiment of a spliced display screen in accordance with the present invention
  • Figure 4 shows a working principle diagram of a color aligner according to the present invention
  • Figure 5 shows an exploded structural view of a third embodiment of a spliced display screen in accordance with the present invention
  • Figure 6 shows an exploded structural view of a fourth embodiment of a spliced display screen in accordance with the present invention.
  • Figure 1 shows the structure of a first embodiment of a spliced display screen 100 in accordance with the present invention.
  • the spliced display screen 100 includes a main display 1, a sub liquid crystal display 2, and an image divider 4.
  • the main display screen 1 has a first bezel 3 (shown in Figures 5, 6) or a first encapsulation frame 6 (shown in Figure 2).
  • the sub liquid crystal display 2 is disposed at at least one first bezel 3 or first encapsulation frame 6 of the main display screen 1.
  • the sub liquid crystal display 2 Since the sub liquid crystal display 2 has the second bezel 5 and the width of the second bezel 5 is smaller than the width of the first encapsulation frame 6 or the first bezel 3, by setting at the first bezel 3 or the first encapsulation frame 6 The sub liquid crystal display 2 enlarges the visual range of the spliced display 100 and reduces or eliminates the influence of the first bezel 3 on the image.
  • the image splitter 4 is for dividing the image signal into a plurality of copies and transmitting them to the main display screen 1 and the sub liquid crystal display 2 for display.
  • the liquid crystal display technology is relatively mature, and the liquid crystal display with a small size can achieve a narrow border or no border.
  • the sub liquid crystal display 2 it is disposed at the first bezel 3 area or the first encapsulation frame 6 to eliminate the bezel effect, so that the visual effect of the spliced display screen 100 is more continuous or the visible area is enlarged.
  • the image splitter 4 divides the image signal into a plurality of copies and transmits them to the main display 1 and the sub liquid crystal display 2 for display, thereby causing the spliced display 100 to constitute a complete picture.
  • the primary display 1 is an organic electroluminescent display having a first encapsulation frame 6.
  • the width of the first sealing frame 6 is set to be wide, for example, the width of the first sealing frame 6 is 1.5-20 mm. Due to the setting of the first sealing frame 6, the visible effective area of the main display 1 becomes smaller.
  • the sub liquid crystal display 2 can be disposed at the first sealing frame 6 of the organic electroluminescent display.
  • the sub liquid crystal display screen 2 It is placed on the main display 1 by means of bonding.
  • a step 11 is provided on the package board 7 of the main display screen 1 on which the sub liquid crystal display 2 is disposed, so that the surface of the package board 7 at the first encapsulation frame 6 is lower than the main display screen 1. The surface of the display area.
  • the surface of the display area of the sub liquid crystal display 2 is on the same plane as the surface of the display area of the main display 1.
  • the spliced display screen 100 further includes a color aligner 8 that can be signally connected to the image divider 4 for use.
  • the image signal of the organic electroluminescent display is corrected to make the color of the organic electroluminescent display and the sub liquid crystal display 2 uniform.
  • the color aligner 8 includes a display parameter format conversion module 9 and a chrominance and saturation adjustment module 10.
  • the chrominance and saturation adjustment module 10 includes a preset lookup table for converting the display parameters of the RGB format in the video signal into YCbCr parameters.
  • the chrominance and saturation adjustment module 10 looks up and rewrites the new YCbCr parameters in the lookup table based on the YCbCr parameters.
  • the display parameter format conversion module 9 converts the new YCbCr parameters into new display parameters of the RGB format and transmits them to the organic electroluminescent display for display.
  • the preset lookup table is an optical test of the organic electroluminescence display and the sub liquid crystal display 2, which is obtained through experimental tests and written in advance in the chromaticity and saturation adjustment module 10.
  • YCbCr shows that Y in the parameter represents brightness, CbCr represents chromaticity and saturation. At this time, we do not need to adjust the brightness. Only need to check the chromaticity and saturation represented by CbCr, it can basically achieve splicing.
  • the display 100 is evenly displayed, and it is more intuitive and easier to modify the chroma and saturation in the YCbCr display parameter coordinate system, making experimental testing and debugging easier.
  • the chromaticity can be adjusted by adjusting the angle of the color vector, and the saturation can be adjusted by adjusting the length of the color vector.
  • a plurality of main display screens 1 may be used for splicing.
  • the sub liquid crystal display 2 can be disposed only at the first bezel 3 at the splicing to mainly eliminate or reduce the discontinuity of the picture.
  • the sub liquid crystal display 2 can also be disposed at each of the first bezels 3 to eliminate or reduce the discontinuity of the picture while increasing the display area of the spliced display screen 100.
  • each of the main display screens 1 needs to be provided with a first bezel 3 to protect and install the module of the display device, whereby a picture that cannot be displayed between the spliced main display screens A border of 3.
  • the spliced display screen 100 including four main display screens 1 will be described as an example.
  • the sub liquid crystal display 2 is disposed at the spliced first bezel 3 area for eliminating or reducing the phenomenon of missing picture at the spliced first bezel 3.
  • the sub liquid crystal display 2 is straddlely covered on the butted first frame 3. This makes the picture of the spliced display screen 100 more continuous and has a better visual effect.
  • the sub liquid crystal display panel 2 is constructed in a strip shape. As shown in FIG. 5, the spliced display screen 100 is formed by splicing four main display screens 1, and the sub liquid crystal display screen 2 can be constructed as three pieces and spliced into a cross shape, which is arranged in the manner shown in FIG. The first border is 3 places.
  • the sub liquid crystal display 2 of such a structure has the advantages of simple structure, low manufacturing cost, and the like.
  • the image divider 4 divides the image into seven parts for transmission to each of the main display screen 1 and each of the sub liquid crystal displays 2, respectively.
  • the sub liquid crystal display panel 2 can also be configured to match the structure and shape of the seams of the spliced display screen 100.
  • the sub liquid crystal display panel 2 is configured in a cross shape and disposed at the first frame 3 which is butted.
  • This kind The sub liquid crystal display 2 of the structure makes the picture of the spliced display screen 100 more continuous, and the visual effect is better, but the manufacturing cost of the sub liquid crystal display 2 is higher.
  • the image divider 4 divides the image into five parts for transmission to each of the main display screen 1 and the sub liquid crystal display 2, respectively.
  • the sub liquid crystal display 2 can be disposed on the first bezel 3 by bonding. This method is easy to operate and easy to replace and repair. It should be noted that since the size of the spliced display 100 is excessively large (greater than 3 meters), and the width of the second frame 5 of the sub liquid crystal display 2 is not more than 0.4 mm, the thickness of the sub liquid crystal display 2 is also very thin. Thus, the arrangement of bonding the sub liquid crystal display 2 to the first bezel 3, especially in applications such as building advertisements, does not substantially bring a visually significant effect to people.

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种拼接显示屏（100），其包括主显示屏（1），其具有第一封胶框或第一边框；副液晶显示屏（2），其设置在主显示屏（1）的至少一侧的第一封胶框或第一边框处，副液晶显示屏（2）具有第二边框（5），第二边框（5）的宽度小于第一封胶框或第一边框的宽度；图像分割器（4），其将影像信号分隔，并分别传送给主显示屏（1）和副液晶显示屏（2）进行显示。拼接显示屏（100）能增加主显示屏（1）可视面积，或者消除或减小拼接的主显示屏（1）之间的画面不连续性。

Description

拼接显示屏
相关申请的交叉引用
本申请要求享有于2015年06月19日提交的名称为“拼接显示屏”的中国专利申请CN201510344585.3的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及显示技术领域，尤其是涉及一种拼接显示屏。
背景技术
显示屏的封装区域并不能显示画面。由于现有技术的限制，使得有些显示屏的封装区域特别宽，而影响可视效果。例如，虽然OLED(有机电致发光显示屏)具有主动发光、响应迅速、低压驱动等优点，但是由于OLED的有机材料对水汽和氧气非常敏感，与水汽和氧气接触会加速OLED的有机材料的老化，必须对OLED的有机材料进行有效封装。由此，OLED的封胶框比较宽，影响OLED的可视区面积。
或者，由于单个显示屏的面积有限，为了实现展会或者楼宇广告等大面积显示，往往采用显示屏拼接的方式来进行显示面积的扩大。但是显示屏的显示区域需要边框进行安装和包裹，因此，在多块显示屏拼接时，画面就会被边框进行分割，破坏了画面的连续性和完整性，严重影响拼接的视觉效果。
发明内容
针对现有技术中所存在的上述技术问题，本发明提出了一种拼接显示屏。该拼接显示屏可克服OLED可视面积相对小或拼接显示屏的画面被边框分割的问题。
根据本发明提出了一种拼接显示屏，包括：
主显示屏，其具有第一封胶框或第一边框，
副液晶显示屏，其设置在主显示屏的至少一侧的第一封胶框或第一边框处，副液晶显示屏具有第二边框，第二边框的宽度小于第一封胶框或第一边框的宽度，
图像分割器，其将影像信号分隔，并分别传送给主显示屏和副液晶显示屏进行显示。
在一个实施例中，主显示屏为具有第一封胶框的有机电致发光显示屏，有机电致发光显示 屏的各第一封胶框处均设置副液晶显示屏。
在一个实施例中，在有机电致发光显示屏的表面上设置台阶以使得第一封胶框处的表面低于主显示屏的显示区域的表面。
在一个实施例中，还包括色彩矫正器，色彩矫正器构造为校正有机电致发光显示屏的影像信号，使有机电致发光显示屏和副液晶显示屏的色彩一致。
在一个实施例中，色彩校正器包括显示参数格式转换模块与色度和饱和度调整模块，色度和饱和度调整模块包括预设的查找表，显示参数格式转换模块用于把影像信号中的RGB格式的显示参数转换为YCbCr参数，色度和饱和度调整模块根据YCbCr参数在查找表中查找并改写为新的YCbCr参数，显示参数格式转换模块再把新的YCbCr参数转换为新的RGB格式的显示参数，传送给有机电致发光显示屏进行显示。
在一个实施例中，主显示屏为多个具有第一边框的主液晶显示屏，相邻的主液晶显示屏对接，并且在对接的第一边框上覆盖有副液晶显示屏。
在一个实施例中，副液晶显示屏跨式覆盖在对接的第一边框上。
在一个实施例中，副液晶显示屏构造为长条状。
在一个实施例中，副液晶显示屏粘结在第一封胶框或第一边框处。
在一个实施例中，第二边框的宽度不大于0.4毫米。
与现有技术相比，本发明的优点在于，通过在主显示屏的第一封胶框或第一边框处设置副液晶显示屏，利用了现有技术中液晶显示屏可做成窄边框或无边框的的优点，可有效增加主显示屏可视面积或者消除拼接的主显示屏之间的第一边框对影像的影响。并且，可以利用现有技术中的液晶显示屏可以做到非常薄的优点，将副液晶显示屏设置在主显示屏上后，基本不会给人带来视觉上的明显效果。另外，通过设置图像分割器，可以保证主显示屏和副液晶显示屏的图像的完整性，保证拼接显示屏的可视效果。
附图说明
下面将结合附图来对本发明的优选实施例进行详细地描述，在图中：
图1显示了根据本发明的拼接显示屏的第一实施例的结构图；
图2显示了根据本发明的拼接显示屏的第二实施例的俯视图；
图3显示了根据本发明的拼接显示屏的第二实施例的主视图；
图4显示了根据本发明的色彩矫正器的工作原理图；
图5显示了根据本发明的拼接显示屏的第三实施例的分解结构图；
图6显示了根据本发明的拼接显示屏的第四实施例的分解结构图；
在附图中，相同的部件使用相同的附图标记，附图并未按照实际的比例绘制。
具体实施方式
下面将结合附图对本发明做进一步说明。
图1显示了根据本发明的拼接显示屏100的第一实施例的结构。如图1所示，拼接显示屏100包括主显示屏1、副液晶显示屏2和图像分割器4。主显示屏1具有第一边框3(图5、6中示出)或第一封胶框6(图2中示出)。而副液晶显示屏2设置在主显示屏1的至少一个第一边框3或第一封胶框6处。由于副液晶显示屏2具有第二边框5，并且第二边框5的宽度小于第一封胶框6或第一边框3的宽度，则通过在第一边框3或第一封胶框6处设置副液晶显示屏2扩大了拼接显示屏100的可视范围，以及减小或消除了第一边框3对影像的影响。图像分割器4用于将影像信号分割为多份，并分别传送给主显示屏1和副液晶显示屏2进行显示。
目前，液晶显示屏技术比较成熟，尺寸较小的液晶显示屏可以做到窄边框或无边框。利用副液晶显示屏2的这种优点，将其设置在第一边框3区域或第一封胶框6处，以消除边框效应，使拼接显示屏100的视觉效果更加连续或者可视区扩大。图像分割器4将影像信号分割为多份，并分别传送给主显示屏1和副液晶显示屏2进行显示，由此使拼接显示屏100组成完整的画面。
根据本发明的一个实施例，如图2、3所示，主显示屏1为具有第一封胶框6的有机电致发光显示屏。在生产有机电致发光显示屏的过程中，需要在封装板7之间设置封胶形成第一封胶框6。而为了防止有机电致发光显示屏的有机材料与水、氧接触，第一封胶框6的宽度设置的较宽，例如第一封胶框6的宽度为1.5-20毫米。而由于第一封胶框6的设置，使得主显示屏1的可视有效区变小。而为了增加主显示屏1的可视有效区，可在有机电致发光显示屏的第一封胶框6处设置副液晶显示屏2。
在近距离观看主显示屏1为有机电致发光显示屏的拼接显示屏100时，为了避免由主显示屏1和副液晶显示屏2不在同一平面而带来的视觉差异，副液晶显示屏2通过粘结的方式设置在主显示屏1上。另外，如图3所示，在设置副液晶显示屏2的主显示屏1的封装板7上设置台阶11，以使得第一封胶框6处的封装板7的表面低于主显示屏1的显示区域的表面。由此，在将副液晶显示屏2设置在第一封胶框6处后，副液晶显示屏2的显示区的表面与主显示屏1的显示区域的表面位于同一平面上。通过这种设置增加了拼接显示屏100的视觉效果，提高了观看舒适度。
一般情况下，有机电致发光显示屏的色彩鲜艳程度要高于液晶显示屏。如果为有机电致发光显示屏的主显示屏1和副液晶显示屏2的色彩鲜艳度差距过大，就会影响使用者的舒适度。为了解决上述问题，拼接显示屏100还包括能与图像分割器4信号连接的色彩矫正器8，以用 于校正有机电致发光显示屏的影像信号，使有机电致发光显示屏和副液晶显示屏2的色彩一致。
如图4所示，色彩矫正器8包括显示参数格式转换模块9和色度和饱和度调整模块10。色度和饱和度调整模块10包括预设的查找表，显示参数格式转换模块9用于把影像信号中的RGB格式的显示参数转换为YCbCr参数。色度和饱和度调整模块10根据YCbCr参数在查找表中查找并改写为新的YCbCr参数。显示参数格式转换模块9再把新的YCbCr参数转换为新的RGB格式的显示参数，传送给有机电致发光显示屏进行显示。
预设的查找表是对有机电致发光显示屏和副液晶显示屏2进行光学检测，通过实验测试得到的，并预先写在色度和饱和度调整模块10内。YCbCr显示参数中的Y代表亮度，CbCr代表的色度和饱和度，此时我们不必对亮度进行调整，只需要对CbCr所代表的色度和饱和度进行查表调整，就基本上可以实现拼接显示屏100的均匀显示，而且在YCbCr显示参数坐标系中修改色度和饱和度更直观、更容易，实验测试及调试更加容易。可通过调整颜色矢量的角度来调整色度，通过调整颜色矢量的长度来调整饱和度。
如图5、6所示，为了增大拼接显示屏100的显示面积，可以使用多个主显示屏1进行拼接。当然，根据不同的需要，副液晶显示屏2可以只是设置在拼接处的第一边框3处，以主要消除或减小画面的不连续性。副液晶显示屏2还可以设置在各第一边框3处，以消除或减小画面的不连续性的同时，增大拼接显示屏100的显示面积。
尤其在展会或楼宇广告等场合，往往采用多个主显示屏1进行拼接以满足超大面积显示的需求。在这种情况下，每个主显示屏1均需要设置第一边框3以对显示设备的模组进行保护和安装，由此，在拼接的主显示屏1之间会出现无法显示画面的第一边框3。以包含四块主显示屏1的拼接显示屏100为例进行说明。在主显示屏1的拼接的第一边框3处，主显示屏1之间的画面被分割，破坏了图像的连续性和完整性。因此，在拼接的第一边框3区域处设置副液晶显示屏2，用于消除或减小拼接的第一边框3处的画面缺失的现象。
优选地，副液晶显示屏2跨式覆盖在对接的第一边框3上。这种使得拼接显示屏100的画面更连续，可视效果更好。另外，为了制造的方便，副液晶显示屏2构造为长条状。如图5所示的，拼接显示屏100由四块主显示屏1拼接而成，副液晶显示屏2可以构造为三块，并拼接为十字状，以图5中所示的方式设置在对接的第一边框3处。这种结构的副液晶显示屏2具有结构简单，制造成本低等优点。在这种情况下，图像分割器4将影像分割为七部分，以分别传送给各主显示屏1和各副液晶显示屏2。
需要说明地是，副液晶显示屏2还可以构造为匹配与拼接显示屏100的接缝数量和形状的结构。例如，如图6所示，副液晶显示屏2构造为十字状，设置在对接的第一边框3处。这种 结构的副液晶显示屏2使得拼接显示屏100的画面更加连续，可视效果更好，但是副液晶显示屏2的制造成本较高。在这种情况下，图像分割器4将影像分割为五部分，以分别传送给各主显示屏1和副液晶显示屏2。
副液晶显示屏2可以通过粘结的方式设置在第一边框3上。这种方式操作简单，更换维修方便。需要说明地是，由于这种拼接显示器100的尺寸超大(大于3米)，而副液晶显示屏2的第二边框5的宽度不大于0.4毫米，同时副液晶显示屏2的厚度也非常薄。由此，将副液晶显示屏2粘结在第一边框3上的这种设置方式，尤其是在楼宇广告等应用中，基本不会给人们带来视觉上的明显影响。
以上所述仅为本发明的优选实施方式，但本发明保护范围并不局限于此，任何本领域的技术人员在本发明公开的技术范围内，可容易地进行改变或变化，而这种改变或变化都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求书的保护范围为准。

Claims (12)

  1. 一种拼接显示屏，其中，包括：
    主显示屏，其具有第一封胶框或第一边框，
    副液晶显示屏，其设置在所述主显示屏的至少一侧的第一封胶框或第一边框处，所述副液晶显示屏具有第二边框，所述第二边框的宽度小于所述第一封胶框或所述第一边框的宽度，
    图像分割器，其将影像信号分隔，并分别传送给主显示屏和副液晶显示屏进行显示。
  2. 根据权利要求1所述的拼接显示屏，其中，所述主显示屏为具有第一封胶框的有机电致发光显示屏，所述有机电致发光显示屏的各第一封胶框处均设置所述副液晶显示屏。
  3. 根据权利要求2所述的拼接显示屏，其中，在所述有机电致发光显示屏的表面上设置台阶以使得第一封胶框处的表面低于所述主显示屏的显示区域的表面。
  4. 根据权利要求2所述的拼接显示屏，其中，还包括色彩矫正器，所述色彩矫正器构造为校正所述有机电致发光显示屏的影像信号，使所述有机电致发光显示屏和所述副液晶显示屏的色彩一致。
  5. 根据权利要求3所述的拼接显示屏，其中，还包括色彩矫正器，所述色彩矫正器构造为校正所述有机电致发光显示屏的影像信号，使所述有机电致发光显示屏和所述副液晶显示屏的色彩一致。
  6. 根据权利要求4所述的拼接显示屏，其中，所述色彩校正器包括显示参数格式转换模块与色度和饱和度调整模块，所述色度和饱和度调整模块包括预设的查找表，所述显示参数格式转换模块用于把影像信号中的RGB格式的显示参数转换为YCbCr参数，色度和饱和度调整模块根据YCbCr参数在所述查找表中查找并改写为新的YCbCr参数，所述显示参数格式转换模块再把新的YCbCr参数转换为新的RGB格式的显示参数，传送给所述有机电致发光显示屏进行显示。
  7. 根据权利要求5所述的拼接显示屏，其中，所述色彩校正器包括显示参数格式转换模块与色度和饱和度调整模块，所述色度和饱和度调整模块包括预设的查找表，所述显示参数格式转换模块用于把影像信号中的RGB格式的显示参数转换为YCbCr参数，色度和饱和度调整模块根据YCbCr参数在所述查找表中查找并改写为新的YCbCr参数，所述显示参数格式转换模块再把新的YCbCr参数转换为新的RGB格式的显示参数，传送给所述有机电致发光显示屏进行显示。
  8. 根据权利要求1所述的拼接显示屏，其中，所述主显示屏为多个具有第一边框的主液晶显示屏，相邻的所述主液晶显示屏对接，并且在对接的所述第一边框上覆盖有所述副液晶显 示屏。
  9. 根据权利要求8所述的拼接显示屏，其中，所述副液晶显示屏跨式覆盖在对接的所述第一边框上。
  10. 根据权利要求1所述的拼接显示屏，其中，所述副液晶显示屏构造为长条状。
  11. 根据权利要求1所述的拼接显示屏，其中，所述副液晶显示屏粘结在所述第一封胶框或所述第一边框处。
  12. 根据权利要求1所述的拼接显示屏，其中，所述第二边框的宽度不大于0.4毫米。
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