CN111983834A - Bright and screen integrated black display system based on local TFT display - Google Patents

Bright and screen integrated black display system based on local TFT display Download PDF

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Publication number
CN111983834A
CN111983834A CN202010758441.3A CN202010758441A CN111983834A CN 111983834 A CN111983834 A CN 111983834A CN 202010758441 A CN202010758441 A CN 202010758441A CN 111983834 A CN111983834 A CN 111983834A
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display
tft
region
area
layer
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殷敏娟
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Jiangsu Jinhua Electronics Co ltd
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Jiangsu Jinhua Electronics Co ltd
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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
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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

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

Abstract

The invention provides a bright screen and integral black display system based on local TFT display, which comprises: a front cover plate defining a first face and a second face; the TFT panel module is attached to the first surface of the front cover plate; the control panel is arranged at the rear end of the TFT panel module and is used for driving and controlling the display content of the TFT panel module; wherein the front cover plate comprises a glass substrate having a first face on which a first region, a second region and a third region are defined, wherein: the first area is a local display area corresponding to the TFT panel module; the second area is a preset position on the glass substrate, which avoids the first area, and the preset position is configured for arranging a touch TP layer and/or a display area; taking other areas except the first area and the second area as a third area; the light transmittance of the first region reaches a first threshold value T1, and the value of T1 is between 8% and 15%; the light transmittance of the third region reaches a second threshold value T2, and T2 is 0.

Description

Bright and screen integrated black display system based on local TFT display
Technical Field
The invention relates to the technical field of TFT display, in particular to a bright-screen and integrated black display system based on local TFT display.
Background
At present, electronic display technologies, especially digital tube, lcd (liquid Crystal display) display screen and OLED (organic light-Emitting Diode) display screen are mainly used as screens on electronic devices. The development of LCD displays is mature, including TFT, VA and other types of LCD displays, especially TFT displays, which are low in cost and stable in light emission, and the backlight light emitted by the Back-light position is modulated by the liquid crystal layer of the front panel portion to display images, and each liquid crystal pixel on the display is driven by a thin film transistor integrated behind the pixel, so the TFT display is an active matrix liquid crystal display device.
TFT display screen can the exclusive use when using, or set up a panel at the front end of display screen, for example glass or organic glass form display panel, protect the display screen module on the one hand, form sealedly, on the other hand can also set up touch, display lamp or other functional design on the panel, realizes the function integration. In some cases, people want the panel to be black or full black, and the customized display is beautiful and high-grade, so it is hoped that the display screen can realize full black effect when it is off, and can realize integral full black effect when it is on, but it is not hoped to see the jogged frame of the display screen and the panel, but it is difficult to realize at present, for example, in the realization process of using the TFT display screen, because of the backlight display mode of the TFT, the liquid crystal layer can not be completely closed, when the TFT displays black, there is part of light to transmit the color layer, so that the black displayed by the TFT display screen is actually the dark gray mixed with white and black, when the ambient light is darker, it is difficult to present the real effect of pure black, especially in the bright screen state of the display screen, the outline of the display screen which can not be inputted with the panel lattice can be displayed, and the display effect is affected.
Meanwhile, under the condition of bright screen, the outline of the square display screen is displayed more obviously. Therefore, if the panel is black, the display effect is poor, namely, the screen is bright or dark.
The OLED display screen is adopted as a display module in the prior art, the display principle of the OLED display screen is different from that of an LCD, when the display screen is turned off, the OLED display screen adopts the self-luminous principle, and when black is required to be displayed, only the light source corresponding to the area is needed, so that the purpose that the position of the part without the light source is kept black is achieved. However, the cost of the OLED display is very high, 2-3 times that of the TFT display with the same size, the preparation process is complex, and the service life of the OLED display is shorter than that of the TFT display due to the light attenuation of the light emitting element.
Disclosure of Invention
According to a first aspect of the present invention, a bright screen integrated black display system based on local TFT display is provided, which includes:
a front cover plate defining a first face and a second face;
the TFT panel module is attached to the first surface of the front cover plate;
the control panel is arranged at the rear end of the TFT panel module and is used for driving and controlling the display content of the TFT panel module;
wherein the front cover plate comprises a glass substrate having a first face on which a first region, a second region and a third region are defined, wherein: the first area is a local display area corresponding to the TFT panel module; the second area is a preset position on the glass substrate, which avoids the first area, and the preset position is configured for arranging a touch TP layer and/or a display area; taking other areas except the first area and the second area as a third area;
the light transmittance of the first region reaches a first threshold value T1, and the value of T1 is between 8% and 15%;
the light transmittance of the third region reaches a second threshold value T2, and T2 is 0.
Preferably, the TFT panel module includes a TFT panel and a flat cable, the flat cable is electrically connected to the control board, and the TFT panel is correspondingly attached to the first area and has the same size as the first area.
Preferably, the light transmittance of the second region is the same as the light transmittance of the first region.
Preferably, the second region is set to have a predetermined graphic pattern, and the predetermined graphic pattern is used to indicate a predetermined touch function or display function.
Preferably, the pattern of the second region is arranged along the circumferential direction of the glass substrate in a circular arc shape.
Preferably, the control board is provided with a light emitting element corresponding to the position of the pattern.
Preferably, the positions of the graphic patterns are also covered by a semi-permeable filling layer.
Preferably, the first side of the glass substrate is printed with a touch-sensitive TP layer and provides touch locations in the second area.
Preferably, the front cover plate is a circular panel, and a circular chamfer is formed at the edge of the second surface.
According to a second aspect of the present invention, there is provided a bright screen integrated black display system based on local TFT display, comprising:
a front cover plate defining a first face and a second face;
the TFT panel module is attached to the first surface of the front cover plate;
the control panel (3) is arranged at the rear end of the TFT panel module and is used for driving and controlling the display content of the TFT panel module;
the front cover plate comprises a substrate and a composite functional film layer arranged on a first surface of the substrate; the substrate is a transparent glass substrate;
the composite functional film layer comprises a bottom layer and a surface layer;
wherein the bottom layer covers the surface of the first surface of the substrate, so that the light transmittance of the substrate is modified to reach a first threshold value T1, and the first threshold value T1 is between 8% and 15%;
the surface layer covers the bottom layer and is provided with a first vacant area, and the first vacant area is located in a local display area corresponding to the TFT panel module;
the light transmittance of the substrate in the region covered by the base layer and the surface layer is 0.
Preferably, the substrate is further provided with a second empty area, the surface layer is covered by the bottom layer, the second empty area is left uncovered, the second empty area is located at a preset position on the glass substrate, and the preset position is used for configuring a touch-controllable TP layer and/or a display area.
Preferably, the second void region has the same light transmittance as the first void region.
Preferably, the predetermined position is provided to cover the filling layer.
In this way, according to the bright-screen and black-all integrated display system for local TFT display provided in the first aspect of the present invention, the glass substrate is subjected to inking and black-all processing, so that in the scheme of locally performing TFT display at the corresponding position of the panel, the display effect of integrated black can be achieved under both bright screen and black screen conditions of the TFT display screen, and low-cost and high-quality display can be achieved.
Meanwhile, an area for touch control and display is reserved at the edge, low-light-transmittance processing is synchronously performed with the glass substrate, so that when an LED (light emitting diode) is lightened at the rear of the panel, bad display feedback of strong light dazzling is weakened, the light display feedback of the display area (touch control integration) at the edge is comfortable and soft through the same ink coating processing of the glass substrate, and the effect of the bright-dark integration black display of the central TFT display screen and the effect of the comfortable display of the edge functional area are optimized through a semi-transparent filling layer, such as a semi-transparent ink layer, in the more preferable selection.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1-2 are schematic diagrams of display effects of a TFT panel module under a pure black display panel in the prior art, where fig. 1 is a display effect under a screen-off condition, and fig. 2 is a display effect under a screen-on condition.
Fig. 3a-3b are schematic diagrams of a bright-screen integrated black display system based on local TFT display according to an exemplary embodiment of the present invention, where 3a is a front-side disassembled structural diagram, and 3b is a back-side disassembled structural diagram.
Fig. 4 is a schematic view of a front cover plate of the first exemplary embodiment of the present invention.
Fig. 5 is a schematic diagram of a rear-mounted TFT of a front cover plate of the first exemplary embodiment of the present invention.
Fig. 6 is a schematic view of the edge of the front cover plate of the first exemplary embodiment of the present invention after attaching a double-sided tape.
Fig. 7 is a schematic diagram of a TFT panel module used for a front cover plate according to a first exemplary embodiment of the present invention.
Fig. 8 is a schematic view of a front cover plate of a second exemplary embodiment of the present invention.
Fig. 9 is a schematic view of a glass substrate of a front cover plate of a second exemplary embodiment of the present invention.
Fig. 10 is a schematic view of a bottom layer in a composite functional film layer of a front cover plate of a second exemplary embodiment of the present invention.
Fig. 11 is a schematic view of a skin layer in a composite functional film layer of a front cover plate of a second exemplary embodiment of the present invention.
Fig. 12-13 are schematic diagrams of display effects of a TFT panel module in a bright-screen-integrated black display system according to the present invention in the prior art, where fig. 12 is a display effect in a screen-off condition, and fig. 13 is a display effect in a bright-screen condition.
Fig. 14 shows the display effect of the conventional black panel using the TFT panel module.
Fig. 15 shows the integrated black display effect of the display content of the bright-screen integrated black display system according to the present invention using the TFT panel module.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
With reference to the drawings, the bright-screen integrated black display system based on the local TFT display according to an exemplary embodiment of the present invention includes a front cover plate 1, a TFT panel module 2, and a control board 3.
The front cover plate 1 may employ a suitably shaped glass substrate, for example, a circular glass substrate. The front cover plate 1 defines a first face and a second face; for the sake of convenience, in the embodiments of the present invention, the TFT panel module 2 is mounted with the first surface as the working surface, and the edge of the other surface, i.e., the second surface, is particularly preferably rounded.
Referring to fig. 3a and 3b, the TFT panel module 2 is used for displaying contents after being driven by supplying power, and is attached to the front cover 1 facing the first surface of the front cover.
The control board 3, for example, a PCB, is disposed at the rear end of the TFT panel module 2 and is used for driving and controlling the display content of the TFT panel module 2.
In combination with the illustration, the TFT panel module 2 includes a TFT panel 21 and a flat cable 22, the flat cable 22 is electrically connected to the control board 3, and the TFT panel 21 is correspondingly attached to the front cover plate.
The control board 3 is provided with, in particular, a drive control circuit for controlling and driving the TFT panel 21, and has, in particular, a control IC for controlling the display of the content of the TFT panel 21.
Referring to fig. 3a and 3b, the control board 3 is provided with a second flat cable 34 at the upper part for connecting with an external power source, such as a DC power supply device, to supply power to the control board and the TFT display module.
With reference to fig. 1 and 2, based on the prior art that a TFT display screen is used as a display module, the display effect that the display panel is black is not ideal, and particularly, a screen frame is easily formed integrally with the display panel under the condition that the TFT display screen is bright.
The front cover 1 combined with the examples shown in fig. 3a and 3b, which is used as a front cover in a display module of a household appliance, a bluetooth sound box, an electronic alarm clock and other electronic devices, forms a display module together with a TFT panel module and a driving circuit at the back, and is fixed in a shell or a special shell of the electronic device or the appliance to provide front-end display when the TFT panel module emits light, wherein the TFT panel module and the driving circuit form the display module to be fixedly combined in a manner favorable for installation and assembly.
As shown in fig. 4 to 7, the front cover plate 1 of the first embodiment of the present invention mainly includes a glass substrate 110 formed of a glass material, for example, and particularly, a high-transmittance class a glass substrate.
In alternative embodiments, the glass substrate 110 is designed in a regular shape to facilitate installation and aesthetics, such as round, square, or other regular polygonal shapes.
In the following examples of the present invention, a circular shape is exemplified.
In the figure, the glass substrate 110 is a circular glass with a small thickness, and the thickness thereof can be selected from 0.5mm to 1 mm. Of course, in other embodiments, other suitable thicknesses of the glass substrate may be selected.
The shape structure of the glass substrate 110 defines circular first and second faces thereof. In the following embodiments, the first surface is used as a working surface and is combined with the TFT panel module 2. The second surface serves as a display surface facing outward. Particularly preferably, the edge of the second face is subjected to a round chamfering treatment.
The first surface of the glass substrate 110 defines a first region 112, a second region 114, and a third region 116, corresponding to different functions and independent light transmittances, respectively.
In the embodiment of the invention, the first region 112 is a partial display region corresponding to the TFT panel module, for example, in the illustration, the TFT panel 21 is a square display screen, which is located at the center of the glass substrate 110. In other embodiments, the TFT display screen may be designed with other suitable shapes and/or shapes.
The TFT panel 21 is attached to the first region 112 of the front cover 1 in a corresponding manner, and has the same size as the first region.
The second region 114 is a predetermined position on the glass substrate that avoids the first region 112, and the predetermined positions are configured to set a touch-enabled TP layer and/or a display region.
The third region 116 is the region other than the first region and the second region.
In the first embodiment of the present invention, the light transmittance of the first region 112 reaches the first threshold T1, and T1 is between 8% and 15%. In the preferred embodiment of the present invention, the values of T1 are 9%, 10%, 11%, 12%, and 15%, which all achieve the display effects under the off-screen and on-screen as shown in fig. 13 and 14.
The light transmittance of the third region 116 reaches the second threshold value T2, and T2 is set to 0.
Thus, in combination with the graphic representation, when the TFT panel 21 is in the off-screen and on-screen states, the glass substrate 110 and the TFT panel module are integrally black-displayed through the overlapping effect of the full black area (third area) and the ink modification of the first area, so that the difference between the display area corresponding to the TFT display screen and the edge non-light area is avoided, the integral black display effect is ensured, and the display effect is optimized.
Meanwhile, in combination with the illustration, through the modification of the bright-screen integrated black display panel with the above structure, the light transmittance of the reserved second region 114 is the same as that of the first region 112, and preferably 8% to 15% of light transmittance is adopted, that is, when the glass substrate is inked, the entire panel is inked, so that in other embodiments, when the display module is driven to emit light and realize a touch function, after the LED lamp 32 arranged on the control panel is lighted, for example, white light is usually adopted for irradiation, so that the light rays displayed through the second region are softer, and are not dazzling, and the display effect is optimized.
In connection with the illustration, the second region 114 is arranged with predetermined graphical patterns 114a, 114b, e.g. illustrations, which are used to indicate a predetermined touch function or display function, e.g. the timing graphical pattern on the left side in the illustrated embodiment, which is used to indicate a timing function. These graphic styles include, for example, icons 114a indicating function settings, and lines 114b for effect display. The touch position can be set through software by designing the touch function corresponding to different graphic styles.
In further embodiments, the graphical styles to implement the above-described functions may also be configured in other shapes and to indicate corresponding different functions.
In conjunction with the illustration, preferably, the one or more graphic patterns of the second region 114 are arranged in a circular arc shape along the circumferential direction of the glass substrate.
In an alternative embodiment, a touch-sensitive TP layer may be printed on the glass substrate 110, and a touch position is provided in the second region 114, such that the printed TP layer may be configured to be touched at a position where the pattern 114a is located, so as to implement a corresponding preset function. Preferably, the control board 3 is provided with light emitting elements 32, such as LED light emitting elements, corresponding to the positions of the pattern.
In conjunction with the illustration, in an alternative embodiment, a double-sided adhesive layer 119a, such as a double-sided adhesive tape, is further attached to the edge of the glass substrate 110. One side of the glass substrate is adhered to the glass substrate 110, the other side of the glass substrate is covered with a cover layer for covering the adhesive, and a tearing strip 119b is reserved to facilitate the cover layer to be removed, so that the glass substrate is convenient to install and assemble with a PCB control board or other components and a shell.
Preferably, the light transmittance of the second region is the same as the light transmittance of the first region.
In an optional embodiment, the position of the pattern is covered with a filling layer, especially a semi-permeable filling layer, such as an ink layer or a rubber mud layer, and the optional thickness is 0.1mm to 0.5mm, so that the soft display effect of the pattern position is further optimized, and glare is avoided.
The preparation of the front cover plate of the first aspect of the present invention comprises the steps of:
providing a transparent glass substrate, especially a class A glass substrate, and cutting to obtain a glass substrate with a predetermined shape, such as a circular shape shown in the figure; preferably, the glass substrate is also cleaned and dried by ultrasonic waves;
then, the working surface of the cleaned glass substrate is subjected to ink coating treatment, so that the light transmittance of the glass substrate reaches a first threshold value T1, for example, the light transmittance reaches 8-15%; preferably, the glass substrate is also cleaned and dried by ultrasonic waves;
finally, the glass substrate is subjected to blackening treatment, which comprises the following steps:
(1) a first region 112, a second region 114 and a third region 116 are defined on a first side of the glass substrate, wherein: the first area is a local display area corresponding to the TFT panel module; the second area is a preset position which is arranged on the glass substrate and avoids the first area, and the preset position is used for arranging a touch TP layer and/or a display area; taking other areas except the first area and the second area as a third area;
(2) the third region is subjected to a blackening treatment so that the light transmittance of the glass substrate reaches a second threshold value T2, T2 being 0.
Wherein, the preparation method also comprises the following steps:
a double-sided adhesive layer, such as a double-sided adhesive tape, is attached to the edge of the glass substrate. Preferably, the double-sided adhesive layer is attached along the circumferential direction of the glass substrate to form a ring shape.
Wherein, the preparation method also comprises the following steps:
a touch-sensitive TP layer is printed on the working surface of the glass substrate and provides a touch location in the second region 114.
Preferably, the second region 114 is configured to have a predetermined graphic pattern, such as shown in the embodiments of fig. 3-6, and the predetermined graphic pattern is used to indicate a predetermined touch function or a display function.
Preferably, the second area is masked with a masking layer corresponding to the second area during the blackening process, so that the second area is left empty during the blackening process. Or in another embodiment, the preset area and the position can be left empty by masking on a black-coated jig.
Preferably, in some embodiments, particularly optionally, the control of the light transmission of 8% -15% is achieved by blending during the inking process using a dark colored base such as dark grey, black, coffee, dark curry, etc.
In another embodiment, the control and adjustment of the chromaticity can be performed by doping blue, green, etc. colors on the basis of the deep color base, so as to control the light transmittance.
Among them, the above-mentioned inking treatment preferably controls the light transmittance to 9% to 12%.
In connection with the design of the front cover 1 according to the second embodiment of the invention shown in fig. 8-11. In this embodiment, a composite film layer is formed on the substrate of the front cover plate through the coating film, so that the optimal display effect of screen lightening and screen extinguishing integration black is achieved. As shown in the attached drawings, the front cover plate 1 includes a substrate 210 and a composite functional film layer 220 on the substrate. In fig. 8, the composite functional film layer 220 is enlarged and displayed for clarity, and the composite functional film layer 220 is an ultra-thin film layer structure with a thickness of 50-100 um.
The substrate 210 is a transparent glass substrate, and the thickness thereof can be controlled within 0.5-1 mm. The preferred shape is circular.
The composite functional film layer 220 includes a bottom layer 221 and a surface layer 222, and the light transmittance is modified through film coating.
Wherein the bottom layer 221 covers the surface of the working surface of the substrate 210, so that the light transmittance of the substrate is modified to reach a first threshold T1, and the first threshold T1 is between 8% and 15%. Especially between 9% and 12%.
The surface layer 222 covers the bottom layer 221 and is provided with a first reserved area 222a, the bottom layer 221 leaves a first reserved area in the film covering process to be uncovered, and the first reserved area is located in a local display area corresponding to the TFT display screen.
The light transmittance of the region of the glass substrate 210 covered with the primer layer and the surface layer is 0. It should be understood that the surface layer 222 is a completely black coating, so that the light transmittance through the surface layer 222, or the region covered by the surface layer 222 and the underlayer 221, is 0.
In combination with the illustration, the same effect as the foregoing first embodiment is achieved by the solution of the second embodiment, namely that the basic light transmittance is achieved at 9-15% throughout the entire glass substrate, and in the non-display area, the light transmittance is achieved at 0, thus ensuring that the integral black display optimization can be achieved both in the case of the TFT screen being on and off.
Preferably, the substrate 210 is further provided with a second empty area 222b, the surface layer is covered by the bottom layer, and the second empty area is left uncovered, the second empty area is located at a predetermined position on the glass substrate, and the predetermined position is used for configuring the touch TP layer and/or the display area.
In this manner, it is preferable to ensure that the light transmittance in the second margin region is the same as that in the first margin region. In conjunction with the illustration, a touch-enabled TP layer and/or display area, such as the aforementioned icon 222b-1 and effect line 222b-2 representing touch functionality, is configured in the second vacant area of the substrate.
Thus, after printing the TP layer on the working surface of the glass substrate 210, the touch position can be provided in the second vacant region 222b, especially the position of the corresponding icon 222 b-1. After power-on and driving, when the user touches the positions, the corresponding function is triggered to be realized.
With reference to fig. 14 and 15, fig. 14 shows the display effect of the TFT panel module under the conventional black panel, and it can be seen that in the process of lighting up the TFT panel module, not only the image content is partially displayed, but also other areas of the TFT panel target have a certain contrast color, which is not in the same way as the basic black display lattice of the front cover plate, and thus has a relatively poor display effect. Fig. 15 shows the integral black display effect of the display content of the bright-screen integral black display system provided by the present invention by using the TFT panel module, and thus, in the embodiment of the present invention, after the TFT panel module is lighted, only the image content portion to be displayed is displayed, and the other portions visually maintain the integral black effect with the basic color of the front cover plate, so that the display effect consistency is very good.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims (13)

1. A bright screen integrated black display system based on local TFT display is characterized by comprising:
a front cover plate (1) defining a first face and a second face;
the TFT panel module (2) is attached to the first surface facing the front cover plate (1);
the control panel (3) is arranged at the rear end of the TFT panel module (2) and is used for driving and controlling the display content of the TFT panel module (2);
wherein the front cover plate comprises a glass substrate having a first face on which a first region, a second region and a third region are defined, wherein: the first area is a local display area corresponding to the TFT panel module; the second area is a preset position on the glass substrate, which avoids the first area, and the preset position is configured for arranging a touch TP layer and/or a display area; taking other areas except the first area and the second area as a third area;
the light transmittance of the first region reaches a first threshold value T1, and the value of T1 is between 8% and 15%;
the light transmittance of the third region reaches a second threshold value T2, and T2 is 0.
2. The partial TFT display-based bright screen integrated black display system according to claim 1, wherein the TFT panel module (2) comprises a TFT panel (21) and a flat cable (22), the flat cable (22) is electrically connected to the control board (3), and the TFT panel (21) is correspondingly and closely mounted in the first area and has the same size with the first area.
3. The partial TFT display-based bright screen integrated black display system of claim 1, wherein the light transmittance of the second region is the same as the light transmittance of the first region.
4. The partial TFT display-based bright-screen integrated black display system according to claim 1, wherein the second region is configured to have a predetermined graphic pattern, and the predetermined graphic pattern is used to indicate a predetermined touch function or display function.
5. The partial TFT display-based bright screen integrated black display system according to claim 1, wherein the pattern of the second region is arranged in a circular arc shape along a circumferential direction of the glass substrate.
6. The partial TFT display-based bright-screen integrated black display system according to claim 4 or 5, wherein the control board (3) is provided with a light-emitting element (32) corresponding to the position of the pattern.
7. The partial TFT display-based bright screen integrated black display system according to claim 4 or 5, wherein the position of the graphic pattern is further covered with a filling layer.
8. The partial TFT display-based bright screen integrated black display system of claim 1, wherein the first side of the glass substrate is printed with a touch-enabled TP layer and provides touch locations in the second area.
9. The partial TFT display-based bright screen integrated black display system of claim 1, wherein the front cover plate is a circular panel and a circular chamfer is formed at the edge of the second surface.
10. A bright screen integrated black display system based on local TFT display is characterized by comprising:
a front cover plate (1) defining a first face and a second face;
the TFT panel module (2) is attached to the first surface facing the front cover plate (1);
the control panel (3) is arranged at the rear end of the TFT panel module (2) and is used for driving and controlling the display content of the TFT panel module (2);
wherein the front cover plate (1) comprises a substrate (210) and a composite functional film layer (220) arranged on a first side of the glass substrate; the substrate (210) is a transparent glass substrate;
the composite functional film layer (220) comprises a bottom layer (221) and a surface layer (222);
wherein the bottom layer (222) covers the surface of the first surface of the substrate (210) so that the light transmittance of the substrate is modified to reach a first threshold value T1, the first threshold value T1 is between 8% and 15%;
the surface layer (222) covers the bottom layer and is provided with a first vacant area, and the first vacant area is located in a local display area corresponding to the TFT panel module (2);
the light transmittance of the glass substrate in the region covered by the base layer and the surface layer is 0.
11. The partial TFT display-based bright screen integrated black display system according to claim 10, wherein the substrate is further provided with a second vacant region, the covering of the surface layer in the bottom layer leaves the second vacant region uncovered, the second vacant region is located at a predetermined position on the glass substrate, and the predetermined position is used for configuring a touch-enabled TP layer and/or a display region.
12. The partial TFT display-based bright screen integrated black display system according to claim 11, wherein the second blank region has the same light transmittance as the first blank region.
13. The partial TFT display-based bright screen integrated black display system of claim 10, wherein the predetermined position is disposed to cover a semi-transparent filling layer.
CN202010758441.3A 2020-07-31 2020-07-31 Bright and screen integrated black display system based on local TFT display Pending CN111983834A (en)

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Publication number Priority date Publication date Assignee Title
CN206991278U (en) * 2017-08-03 2018-02-09 信利光电股份有限公司 A kind of black protecgulum, black touch-screen and display module
CN207020647U (en) * 2017-06-08 2018-02-16 深圳秋田微电子股份有限公司 A kind of touch-screen display module for ceasing screen vision one
CN109933231A (en) * 2017-12-19 2019-06-25 南昌欧菲光学技术有限公司 Touching display screen and its cover board
CN209674147U (en) * 2019-04-18 2019-11-22 苏州胜利精密制造科技股份有限公司 One kind putting out the black display module of screen one
CN209821806U (en) * 2019-06-03 2019-12-20 信利光电股份有限公司 Integrative black touch display module assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207020647U (en) * 2017-06-08 2018-02-16 深圳秋田微电子股份有限公司 A kind of touch-screen display module for ceasing screen vision one
CN206991278U (en) * 2017-08-03 2018-02-09 信利光电股份有限公司 A kind of black protecgulum, black touch-screen and display module
CN109933231A (en) * 2017-12-19 2019-06-25 南昌欧菲光学技术有限公司 Touching display screen and its cover board
CN209674147U (en) * 2019-04-18 2019-11-22 苏州胜利精密制造科技股份有限公司 One kind putting out the black display module of screen one
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Application publication date: 20201124