Liquid crystal display with integrated black effect self-adjusting function

Abstract

The utility model provides a liquid crystal display with an integrated black effect self-adjusting function. The liquid crystal display sequentially comprises a cover plate, a sensor, a gray-scale liquid crystal module and a display module from top to bottom, the gray-scale liquid crystal module comprises dye liquid crystals, and the gray-scale liquid crystal module changes the deflection degree of the dye liquid crystals under the change of the power supply voltage, so that the gray-scale liquid crystal module has different Lab color values. The gray-scale liquid crystal module is innovatively arranged on the display module, the power supply voltage of the gray-scale liquid crystal module is adjusted according to the Lab color value of the frame matched with the liquid crystal display with the integrated black effect self-adjusting function, the Lab color value of the gray-scale liquid crystal module is made to be the same as the Lab color value of the frame, and the integrated black function is achieved. According to the liquid crystal display, the existing film coating and integrated black OCA pasting technology is abandoned, the production cost and the complexity are reduced, the gray-scale liquid crystal module cannot absorb and reflect light rays, and the brightness and the contrast ratio of the liquid crystal display with the integrated black effect self-adjusting function are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid crystal electronic device, especially relates to a liquid crystal display with integrated black effect self -adjusting function. BACKGROUND

[0002] The working principle of the liquid crystal display is to control the arrangement of liquid crystal molecules through an electric field, thereby changing the polarization state of light and realizing image display. The working principle of the touch screen is an inductive liquid crystal display device that receives input signals such as a touch head. When a graphical button on the screen is touched, the tactile feedback system on the screen can drive various connected devices according to the preprogrammed program, thereby replacing the mechanical button panel.

[0003] Currently, the liquid crystal display is combined with the touch screen, the picture is displayed by the liquid crystal display, and the input signal is obtained by the touch screen. Among them, after the liquid crystal display is combined with the touch screen, the color needs to be adjusted and optimized to achieve the best visual effect. In the existing technology, film coating or pasting integrated black OCA is usually used to realize the integrated black effect of the touch screen.

[0004] Although the above two methods can realize the integrated black effect of the touch screen, additional process treatment is required, which increases the production cost and complexity, and film coating and pasting integrated black OCA will absorb and reflect light to some extent, which may reduce the brightness and contrast of the touch screen, resulting in weakened light transmittance and display effect. In addition, if the color of the touch screen frame changes, it may be necessary to re-coat or replace the integrated black OCA, which undoubtedly increases the difficulty and cost of maintenance and upgrading. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a liquid crystal display with integrated black effect self-adjusting function, and aims at providing a new structure of liquid crystal display screen to solve the problems in the above background technology.

[0006] In order to realize the above purpose, the technical scheme of the utility model has:

[0007] The utility model provides a liquid crystal display with integrated black effect self-adjusting function, which comprises a cover plate, a sensor, a gray scale liquid crystal module and a display module from top to bottom.

[0008] Among them,

[0009] The gray scale liquid crystal module includes dye liquid crystal, and the gray scale liquid crystal module changes the deflection degree of the dye liquid crystal under the change of power supply voltage, so that the gray scale liquid crystal module has different Lab color values.

[0010] Compared with the prior art, the application innovatively sets the gray-scale liquid crystal module on the display module, adjusts the power supply voltage of the gray-scale liquid crystal module according to the Lab color value of the frame matched with the liquid crystal display with the self-adjusting function of the integral black effect, so that the Lab color value of the gray-scale liquid crystal module is the same as the Lab color value of the frame, and the integral black function is realized. In addition, the application discards the existing plating film and integral black OCA pasting technology, reduces the production cost and complexity, and the gray-scale liquid crystal module will not absorb and reflect light, thereby improving the brightness and contrast of the liquid crystal display with the self-adjusting function of the integral black effect.

[0011] In an embodiment, the dye doping ratio of the dye liquid crystal is 8-13%.

[0012] In an embodiment, the color of the dye liquid crystal is gray black.

[0013] In an embodiment, the gray-scale adjustable transmittance of the gray-scale liquid crystal module is 10%-80%.

[0014] In an embodiment, the gray-scale liquid crystal module further comprises a first ITO glass, a second ITO glass and a sealing edge glue, the first ITO glass, the second ITO glass and the sealing edge glue together form a liquid crystal cavity, and the liquid crystal cavity is filled with the dye liquid crystal and a spacer.

[0015] In an embodiment, the inner side of the first ITO glass and the inner side of the second ITO glass are both provided with a PI layer.

[0016] In an embodiment, the liquid crystal display with the self-adjusting function of the integral black effect does not include a polaroid.

[0017] In an embodiment, the periphery of the liquid crystal display with the self-adjusting function of the integral black effect is further provided with a frame.

[0018] The power supply voltage of the gray-scale liquid crystal module changes according to the Lab color value of the frame.

[0019] In an embodiment, the cover plate has a first area and a second area, the first area is provided for the gray-scale liquid crystal module, the second area is provided around the first area, and the second area is the frame. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1is a structural schematic diagram of a liquid crystal display with self-adjusting function of integral black effect.

[0022] Explanation of reference signs:

[0023] 10 cover plate, 110 first area, 120 second area, 20 sensor, 30 gray scale liquid crystal module, 310 first ITO glass, 320 second ITO glass, 330 edge sealing glue, 340 dye liquid crystal, 350 spacer, 360 PI layer, 40 display module DETAILED DESCRIPTION

[0024] In order to better illustrate the present application, the present application will be further described in detail below with reference to the accompanying drawings.

[0025] It should be clear that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0027] The following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third" and the like are only used to distinguish similar objects, and do not necessarily describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. "And / or", which describes the association between the associated objects, means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0029] In the prior art, the one-piece black effect of the touch screen is usually realized by film plating color adjustment or pasting one-piece black OCA. Film plating color adjustment refers to plating a special film on the surface of the touch screen to make the touch screen present a black effect in the off-screen state. Pasting one-piece black OCA refers to pasting a layer of black optical adhesive between the touch screen and the liquid crystal display to make the touch screen present a black effect in the off-screen state. Both of the two methods can realize the one-piece black effect of the touch screen, but they need additional process treatment and may affect the light transmittance and display effect of the touch screen. Moreover, these methods have poor adaptability to the color of the touch screen frame. If the color of the touch screen frame changes, film plating or replacement of one-piece black OCA may be needed, which undoubtedly increases the difficulty and cost of maintenance and upgrading.

[0030] Therefore, as shown in Figure 1 The utility model provides a liquid crystal display with one-piece black effect self -adjusting function, it includes from top to bottom in proper order cover plate 10, sensor 20, grey scale liquid crystal module 30 and display module 40, wherein, the grey scale liquid crystal module 30 includes dye liquid crystal 340, the grey scale liquid crystal module 30 changes the deflection degree of dye liquid crystal 340 under the change of supply voltage, to make the grey scale liquid crystal module 30 have different Lab color value.

[0031] Specifically, the liquid crystal display with one-piece black effect self-adjusting function of the present application is generally used in cooperation with the frame or other shell structure during use. In the following, the frame will be taken as an example for description. In order to realize the one-piece black appearance effect, the supply voltage of the grey scale liquid crystal module 30 is adjusted according to the color of the frame (Lab color value is selected as reference data), so that the Lab color value of the grey scale liquid crystal module 30 changes accordingly, the display gray level is regulated, and the liquid crystal display with one-piece black effect self-adjusting function of the present application can realize the one-piece black effect of the screen and the frame in dark state display, avoiding the phenomenon of gray screen position and black frame position. When the liquid crystal display with one-piece black effect self-adjusting function is in bright state display, the deflection degree of the dye liquid crystal 340 is changed by changing the supply voltage of the grey scale liquid crystal module 30, so that the pattern of the display module 40 can be normally displayed.

[0032] It needs to be understood that the liquid crystal display with the self-adjusting function of the integrated black effect in the present application has different power supply voltages for the gray-scale liquid crystal module 30 in bright state and dark state. The power supply voltage is the first voltage when in the dark state, at which time the color of the gray-scale liquid crystal module 30 is the same as the color of the frame, realizing the integrated black. When in the bright state, the power supply voltage is the second voltage, at which time the transmittance of the gray-scale liquid crystal module 30 is high, not affecting the display work of the display module 40.

[0033] Compared with the prior art, the present application innovatively sets the gray-scale liquid crystal module 30 on the display module 40, adjusts the power supply voltage of the gray-scale liquid crystal module 30 according to the Lab color value of the frame matched with the liquid crystal display with the self-adjusting function of the integrated black effect, so that the Lab color value of the gray-scale liquid crystal module 30 is the same as the Lab color value of the frame, realizing the integrated black function. In addition, the present application discards the existing film plating and integrated black OCA pasting technology, reduces the production cost and complexity, and the gray-scale liquid crystal module 30 will not absorb and reflect light, improving the brightness and contrast of the liquid crystal display with the self-adjusting function of the integrated black effect.

[0034] Further, since the gray-scale liquid crystal module 30 of the present application can be bonded together with the display module 40, sensor 20 and cover plate 10 through the light-transmitting OCA glue, the manufacturing process is simple, and there is no need to consider the problem of affecting the transmittance. It needs to be noted that the sensor in the liquid crystal display with the self-adjusting function of the integrated black effect in the present application can be understood as a sensing layer, which is mainly to realize the touch function, is a structural layer of the touch screen, and is a structure clear and understood by those skilled in the art.

[0035] In an embodiment, the dye doping ratio of the dye liquid crystal 340 is 8-13%, by adding dye to the liquid crystal, so that; it needs to be noted that the doping ratio in the present embodiment refers to the ratio of the mass of the dye to the total mass of the dye liquid crystal 340. Preferably, the dye doping ratio of the dye liquid crystal 340 is 10%.

[0036] In an embodiment, the color of the dye liquid crystal 340 is gray black, and in the present embodiment, gray black dye is added to the liquid crystal to make the dye liquid crystal 340 black, matching the frame color. In other embodiments, the color of the dye liquid crystal 340 can also be other colors, which can be changed accordingly according to the frame color.

[0037] In an embodiment, the gray-scale adjustable transmittance of the gray-scale liquid crystal module 30 is 10%-80%, by adjusting the high transmittance, so as to avoid affecting the display work of the display module 40.

[0038] Regarding the structure of the gray scale liquid crystal module 30, in an embodiment, the gray scale liquid crystal module 30 further comprises a first ITO glass, a second ITO glass and an edge sealing glue 330, the first ITO glass, the second ITO glass and the edge sealing glue 330 jointly enclose a liquid crystal cavity, the liquid crystal cavity is filled with the dye liquid crystal 340 and the spacer 350, so as to realize the deflection angle of the dye liquid crystal 340 by changing the power supply voltage. Further, the inner side of the first ITO glass and the second ITO glass is provided with a PI layer.

[0039] In an embodiment, the liquid crystal display with the self-adjusting function of the integrated black effect does not include a polaroid, and the gray scale display can be realized by changing the power supply voltage, thereby avoiding the steps of coating or pasting an integrated black OCA in the prior art, simplifying the production process and reducing the production cost.

[0040] In an embodiment, the liquid crystal display with the self-adjusting function of the integrated black effect is further provided with a frame; and the power supply voltage of the gray scale liquid crystal module 30 is changed according to the Lab color value of the frame. It should be noted that even the color of the same batch of frames will have differences, and by fine-tuning the power supply voltage of the gray scale liquid crystal module 30, the display gray scale can be adjusted, that is, the integrated black effect can be realized, the integrated black effect can be realized without increasing the production cost and complexity, the influence of coating and pasting the integrated black OCA on the light transmittance and display effect of the touch screen is avoided, and the application has high flexibility and adaptability. The application has wide market demand and good application prospect. The adaptability of the color of the frame of the touch screen is improved, so that when the color changes, it is not necessary to re-coat or replace the integrated black OCA.

[0041] Regarding the frame, in an embodiment, the cover plate 10 has a first area 110 and a second area 120, the first area corresponds to the arrangement of the gray scale liquid crystal module 30, and the second area surrounds the first area and is the frame. In other embodiments, the frame can be a component of an external device, rather than being arranged on the cover plate 10.

[0042] In the description of the present application, it should be understood that the terms "vertical", "horizontal", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection content of the present application.

[0043] If the words "first", "second" and the like are used herein to qualify various components, those skilled in the art should know that the use of "first", "second" is only for the convenience of describing the utility model and simplifying the description, and the above words have no special meaning unless otherwise stated.

[0044] The utility model is not limited to the above-mentioned implementation, if various changes or deformation of the utility model do not deviate from the spirit and scope of the utility model, if these changes and deformation belong to the right claim and equivalent technical scope of the utility model, the utility model also intends to include these changes and deformation.

Claims

1.A liquid crystal display with integrated black effect self-adjusting function, characterized in that: from top to bottom, the liquid crystal display comprises a cover plate, a sensor, a gray-scale liquid crystal module and a display module; wherein, the gray-scale liquid crystal module comprises dye liquid crystal, and the gray-scale liquid crystal module changes the deflection degree of the dye liquid crystal under the change of the power supply voltage, so that the gray-scale liquid crystal module has different Lab color values. 2.The liquid crystal display with integrated black effect self-adjusting function according to claim 1, characterized in that: the color of the dye liquid crystal is gray black. 3.The liquid crystal display with integrated black effect self-adjusting function according to claim 1, characterized in that: the gray-scale adjustable transmittance of the gray-scale liquid crystal module is 10%-80%. 4.The liquid crystal display with integrated black effect self-adjusting function according to claim 1, characterized in that: the gray-scale liquid crystal module further comprises a first ITO glass, a second ITO glass and a sealing adhesive, the first ITO glass, the second ITO glass and the sealing adhesive together form a liquid crystal cavity, and the liquid crystal cavity is filled with the dye liquid crystal and spacers. 5.The liquid crystal display with integrated black effect self-adjusting function according to claim 4, characterized in that: the inner side of the first ITO glass and the inner side of the second ITO glass are both provided with a PI layer. 6.The liquid crystal display with integrated black effect self-adjusting function according to claim 1, characterized in that: the liquid crystal display with integrated black effect self-adjusting function does not comprise a polarizer. 7.The liquid crystal display with integrated black effect self-adjusting function according to claim 1, characterized in that: the periphery of the liquid crystal display with integrated black effect self-adjusting function is further provided with a frame; and the power supply voltage of the gray-scale liquid crystal module is changed according to the Lab color value of the frame. 8.The liquid crystal display with integrated black effect self-adjusting function according to claim 7, characterized in that: the cover plate has a first area and a second area, the first area is provided for the gray-scale liquid crystal module, and the second area is provided around the first area, and the second area is the frame. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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