CN111816073A - Display module, display device and calibration method of display module - Google Patents

Display module, display device and calibration method of display module Download PDF

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Publication number
CN111816073A
CN111816073A CN202010640703.6A CN202010640703A CN111816073A CN 111816073 A CN111816073 A CN 111816073A CN 202010640703 A CN202010640703 A CN 202010640703A CN 111816073 A CN111816073 A CN 111816073A
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China
Prior art keywords
display
cover plate
display panel
transparent cover
display module
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Granted
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CN202010640703.6A
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Chinese (zh)
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CN111816073B (en
Inventor
徐仁哲
张斌
傅晓亮
杨皓天
王毅鸣
郝晓东
王康
龚伟
毕丹炀
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to CN202010640703.6A priority Critical patent/CN111816073B/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating 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 semiconductor devices, e.g. diodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/35Indicating 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The embodiment of the application provides a display module, a display device and a calibration method of the display module, relates to the technical field of display equipment, and is used for improving the problem that the display effect of the display module is influenced by an ink frame existing in a glass cover plate. The display module comprises a display panel and a transparent cover plate, wherein the display panel is provided with a pixel area consisting of pixel points; the transparent cover plate is arranged on the outer side of the display panel along the display direction of the pixel area; in the projection of the pixel area to the transparent cover plate along the display direction, the edge of the pixel area at least coincides with the edge of the coverage area of the transparent cover plate.

Description

Display module, display device and calibration method of display module
Technical Field
The embodiment of the application relates to the technical field of display equipment, in particular to a display module, a display device and a calibration method of the display module.
Background
The display module includes a display panel and a driving chip, the display panel can be generally divided into a liquid crystal panel and an OLED (Organic Light-Emitting Diode) panel according to a display principle, and the driving chip controls the display panel to work to display contents.
The related art provides a display module assembly, and this display module assembly includes display panel and glass apron, and the glass apron laminates in display panel's the outside, and the glass apron laminates behind display panel to realize certain guard action to display panel. As shown in fig. 1, the display panel includes a display area 1 and a non-display area 2, a plurality of pixels are disposed in the display area 1, and the plurality of pixels are operated to display content. The non-display area 2 is disposed around the outer side of the display area 1, and the non-display area 2 can be used for routing of the display panel. As shown in fig. 2, the glass cover plate is printed with ink corresponding to the non-display area 2 of the display panel, the ink forms a closed ink frame 4 on the glass cover plate, the area surrounded by the ink frame 4 is a viewing area 3 of the glass cover plate, the viewing area 3 is arranged corresponding to the display area 1 of the display panel, and the display area 1 is displayed through the viewing area 3. In the display module assembly among the correlation technique, the setting of printing ink frame 4 can shelter from display panel's non-display area 2, makes the display module assembly more pleasing to the eye.
However, the existence of the ink frame also enables the periphery of the display area of the display module to have a relatively obvious frame, which affects the display effect of the display module.
Disclosure of Invention
In view of this, the embodiment of the present application provides a display module, a display device, and a calibration method for the display module, so as to solve the problem that the display effect of the display module is affected by the presence of an ink frame on a glass cover plate in the related art.
Based on the above purpose, in a first aspect, an embodiment of the present application provides a display module, including a display panel and a transparent cover plate, where the display panel has a pixel region formed by pixel points; the transparent cover plate is arranged on the outer side of the display panel along the display direction of the pixel area; in the projection of the pixel area to the transparent cover plate along the display direction, the edge of the pixel area at least coincides with the edge of the coverage area of the transparent cover plate.
In the display module assembly that has above-mentioned structure, the edge of pixel area coincides with the coverage area edge of transparent cover plate at least, that is to say, the coverage area is located the pixel area, display panel's pixel area is greater than the coverage area of transparent cover plate promptly, make the coverage area of transparent cover plate in all be the pixel that can show in the display panel, and make the non-display area in the display panel exceed and be located the coverage area outside behind the coverage area, need not printing ink and shelter from, there is not the printing ink frame, consequently, can realize the display effect that display module assembly does not have the frame.
In a possible implementation manner, the transparent cover plate and the display panel are curved structures which are matched with each other.
In a possible implementation manner, the transparent cover plate includes a cover plate body and a cover plate edge, one end of the cover plate edge is connected to a side edge of the cover plate body, and the other end of the cover plate edge extends in a bending manner towards a side where the display panel is located; the display panel is a flexible panel attached to the inner side of the transparent cover plate.
In a possible implementation manner, the display module further includes a bent circuit board, one end of the bent circuit board is connected to the end of the display panel, the other side of the bent circuit board is bent and extends to one side of the display panel far away from the transparent cover plate, and the bent circuit board is provided with a driving chip for controlling the display of the display panel. The bent circuit board with the structure can fully utilize the space occupied by the bent display panel, and is beneficial to reducing the size of the display module.
In one possible implementation, the display panel is a flexible OLED panel or a flexible liquid crystal panel.
In a possible implementation manner, the edge end face of the transparent cover plate is provided with a shading part for preventing light leakage. Through setting up the shading portion, can prevent that transparent cover plate from taking place the marginal light leak after display panel is lighted, improve display module's display effect.
In one possible implementation manner, the light shielding portion is a black adhesive tape attached to the edge end face.
In a possible implementation manner, a polarizer is arranged between the display panel and the transparent cover plate, the polarizer is attached to the outer side of the display panel, and the transparent cover plate is glued with the outer side of the polarizer through optical cement.
In a second aspect, an embodiment of the present application provides a display device, which includes a mounting housing and a display module mounted on the mounting housing as described in the embodiment of the first aspect, wherein the mounting housing has an avoiding space for avoiding a convex end portion of the display panel.
In a second aspect, a display device includes the display module of the first aspect, and therefore, the display device also has the beneficial technical effects of the display module, which can be referred to the above description.
In a third aspect, an embodiment of the present application provides a calibration method for a display module, which is applied to the display module described in the embodiment of the first aspect, where the display module includes a driving chip for controlling the display of the display panel, and the calibration method includes:
driving the display panel to display the calibration points;
acquiring the outline of the transparent cover plate and a first coordinate value of the calibration point relative to a first coordinate system, wherein the first coordinate system is a coordinate system taking the outline as a reference;
calculating a second coordinate value of a reference point in the outline profile corresponding to the calibration point;
calculating a coordinate deviation value of the first coordinate value relative to the second coordinate value;
and compensating the pixel point coordinates of a register in the driving chip according to the coordinate deviation value.
By adopting the calibration method of the display module, the pixel coordinate compensation of the register in the driving chip is based on the appearance contour of the transparent cover plate, so that the display deviation caused by the misalignment of the assembly of the display panel and the transparent cover plate is avoided, and the frameless display effect of the display module is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one or more embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel provided in the related art;
FIG. 2 is a schematic structural diagram of a glass cover plate provided in the related art;
fig. 3 is a front view of a display module according to an embodiment of the present disclosure;
fig. 4 is a side view of a display module according to an embodiment of the present disclosure;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a flowchart of a calibration method for a display module according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a calibration method of a display module according to an embodiment of the present disclosure.
Description of reference numerals:
1-display area, 2-non-display area, 3-viewing area,
4-ink frame, 5-transparent cover plate, 6-display panel,
7-drive chip, 8-shading part, 9-optical adhesive layer,
10-polarizer, 11-bending circuit board, 12-flexible circuit board,
13-calibration Point.
Detailed Description
Display module assembly among the correlation technique includes display panel and glass apron, and the setting of china ink frame in the glass apron can shelter from display panel's non-display area, makes display module assembly more pleasing to the eye. However, the existence of the ink frame also enables the periphery of the display area of the display module to have a relatively obvious frame, which affects the display effect of the display module.
In view of this, the embodiment of the present application provides a display module, in which the coverage area of the transparent cover plate is located in the pixel area, so that the coverage area of the transparent cover plate is all pixels that can be displayed in the display panel, and the non-display area in the display panel is located outside the coverage area after exceeding the coverage area, and therefore, the display module does not need to be shielded by printing ink, and has no ink frame, and therefore, the display module can achieve a frameless display effect.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 3 is a front view of a display module according to an embodiment of the present disclosure, fig. 4 is a side view of the display module according to the embodiment of the present disclosure, and fig. 5 is a partially enlarged view of fig. 4; as shown in fig. 3 to 5, the display module includes a transparent cover 5, a display panel 6 and a driving chip 7.
The display panel 6 is a curved surface structure formed by a flexible panel, and the flexible panel may be a flexible OLED (organic light-Emitting Diode) panel and a flexible liquid crystal panel. In this embodiment, a flexible OLED panel is described as an example, the flexible OLED panel is a self-luminous display panel, and the display panel of this type can realize a display function without a backlight layer and a liquid crystal layer, so that the display panel 6 can be thinner and lighter and can be bent more easily.
The display panel 6 comprises a panel body and panel edges, wherein the panel body is of a rectangular plate-shaped structure, and the panel edges are connected to four side edges in the rectangular plate-shaped structure. One end at panel edge and the side end connection of panel body, the other end at panel edge is towards the crooked extension in one side of panel body to form curved surface screen structure. The curved direction of extension of the panel edge is generally away from the display direction of the panel body, where the display direction is the direction in which the display content faces directly when the display panel 6 is lit, and in use, the viewer is positioned in front of the display orientation. For flat screens, the display direction is generally perpendicular to the display surface of the screen, whereas for curved screens, the display direction is generally radial to the curved structure. In this embodiment, the display panel 6 is a flexible OLED panel, and the panel body and the panel edge are formed after being attached to the transparent cover plate 5, that is, the display panel 6 is bent under the limitation of the transparent cover plate 5.
The display panel 6 is densely provided with a plurality of pixels, and the region formed by the plurality of pixels is a pixel region. The display direction of the display panel, that is, the display direction of the pixel region, can also be understood as the light emitting direction of the pixel point. For the flexible OLED panel in this embodiment, the pixel points are composed of light emitters of different colors, and the arrangement type of the light emitters is not limited in this embodiment, and may be a standard RGB arrangement, an RGB penttile arrangement, an RGB Delta arrangement, an RGBW arrangement, an RGB S-Strip arrangement, or the like.
Transparent cover 5 laminates in display panel 6 along the outside of demonstration direction, realizes certain protect function to display panel 6, and transparent cover 5 can be the glass material, for example toughened glass. In a possible embodiment, the transparent cover 5 may also be made of other transparent materials, such as acrylic.
The transparent cover plate 5 is a curved surface structure matched with the display panel 6 and comprises a cover plate body and a cover plate edge, the cover plate body is of a rectangular plate-shaped structure, and the cover plate edge is connected to four side edge positions in the rectangular plate-shaped structure. One end at apron edge is connected with the edge of apron body, and the other end at apron edge is towards the crooked extension in panel body place one side to form the 3D apron, the 3D apron passes through the bending deformation of medial surface restriction flexible OLED panel. When the bending extending direction of the panel edge deviates from the display direction of the panel body, the extending direction of the cover plate edge also deviates from the display direction of the panel body.
When the transparent cover 5 is attached to the display panel 6, the transparent cover 5 is attached to the outer side of the display panel 6, the region covered by the transparent cover 5 is a covered region, and in a projection of the pixel region onto the transparent cover 5 along the display direction, the edge of the pixel region is overlapped with at least the edge of the covered region of the transparent cover 5. Here, at least coinciding means that, among the edges of the pixel area, the edges of the pixel area all coincide with the edges of the covered area; or, partial edge of the pixel area coincides with the edge of the covered area, and meanwhile, other edge parts of the pixel area exceed the edge of the covered area; alternatively, all edges of the pixel area do not coincide with the edges of the covered area, and all edges of the pixel area exceed the edges of the covered area. That is, in the projection of the transparent cover 5 to the display panel 6, the edge contour of the transparent cover 5 is within the edge contour of the pixel area in the display panel 6, and the coverage area is within the pixel area.
In the embodiment of the present application, the size of the edge of the pixel area in the display panel 6 exceeding the edge of the covered area of the transparent cover 5 may be determined according to the attaching precision and the cutting precision of the transparent cover 5 and the display panel 6, and it is sufficient that the covered area of the transparent cover 5 is within the pixel area of the display panel 6 even in the limit tolerance.
A curved wiring board 11 is attached to one end of the display panel 6, and the curved wiring board 11 has a curved wiring board structure. One end of the bent wiring board 11 is connected to the display panel 6, and the other end of the bent wiring board 11 is bent to extend below the panel body, that is, the other side of the display panel 6 in the display orientation, that is, the rear area of the display panel 6. So design, can utilize display panel 6's crooked characteristic, rationally do benefit to the space that display panel 6 occupy, be favorable to dwindling display module assembly's occupation volume. The flexible wiring board 11 is provided with a driving chip 7 and a flexible wiring board 12. The flexible wiring board 12 is used to electrically connect devices that need to be connected to the display module.
The driving chip 7 is a control device for controlling the display of the display panel 6, and includes a register, in which the pixel coordinates of the display panel 6 are stored, and the pixel coordinates and the pixels in the pixel region are in a mapping relationship. The driving chip 7 controls the display panel 6 to display content based on the coordinates of the pixel points in the register, so that the display range of the display panel 6 is the range of the pixel region. In this embodiment, the driving chip 7 controls a part of the pixels in the pixel region to operate so as to align the pixel region display region with the coverage region of the transparent cover plate 5, thereby achieving a frameless display effect.
According to the above description, through adopting the display module assembly in this application embodiment, the coverage area of transparent cover plate 5 is located the pixel region of display panel 6, that is, the pixel region of display panel 6 is greater than the coverage area of transparent cover plate 5, make the coverage area of transparent cover plate 5 be the pixel that can carry out the demonstration in the display panel 6, and make the non-display area in the display panel 6 exceed and be located the coverage area outside behind the coverage area, need not printing ink and shelter from, there is not the printing ink frame, consequently, can realize the display effect that the display module assembly does not have the frame.
The edge face of the transparent cover plate 5 is provided with a shading part 8, and the shading part 8 is a black adhesive tape adhered to the edge face of the transparent cover plate 5. Through setting up black sticky tape, can prevent that transparent cover 5 from taking place the marginal light leak after display panel 6 is lighted, improve display module's display effect. In a possible embodiment, the light shielding portion 8 may also be black ink coated on the edge face of the transparent cover 5.
A Polarizer 10(Polarizer, POL for short) and an optical cement (OCL for short) are further disposed between the transparent cover plate 5 and the display panel 6, and the POL10 is attached to the outer side of the display panel 6 to block the reflection of the external light, so as to ensure that the display module maintains a high contrast ratio. OCA is a layer of special double-sided adhesive tape without base material with optical transparency, the POL10 and the transparent cover plate 5 are glued through OCL, and the OCL forms an optical adhesive layer 9 between the transparent cover plate 5 and the POL 10.
The above embodiment has been described by taking a curved screen and a 3D cover as examples, but the embodiment of the present application is not limited thereto, and in a possible implementation, the transparent cover 5 and the display panel 6 are of a planar plate-shaped structure.
The embodiment of the application also provides a display device, and the display device can be an electronic device with a display function, such as a mobile phone, a notebook, a display, a smart television, a smart watch and the like. The display device comprises an installation shell and a display module arranged on the installation shell, and the display module adopts the design in the embodiment.
When the edge of the pixel region of the display panel 6 at least overlaps with the edge of the coverage region of the transparent cover 5, the edge end face of the display panel 6 may exceed the edge end face of the transparent cover 5 by a certain distance, that is, the edge end face of the display panel 6 may protrude outward relative to the edge end face of the transparent cover 5, and the protruding portion is defined as a protruding end portion, and accordingly, an avoiding space is provided in the mounting case corresponding to the protruding end portion of the display panel 6 in the display module. It can be understood that the smaller the distance of the display panel 6 beyond the transparent cover 5, the smaller the escape space can be correspondingly.
The embodiment of the present application also provides a calibration method of a display module, where the calibration method of the display module is used for controlling the display module in the above embodiments, and fig. 6 is a flowchart of the calibration method of the display module provided in the embodiment of the present application; fig. 7 is a schematic diagram of a calibration method of a display module according to an embodiment of the present application, and as shown in fig. 6 and 7, the control method of the display device includes the following steps:
step S1: driving the display panel to display the calibration points;
the driving chip of the display module is provided with a register, the register stores pixel point coordinates in a pixel area, and the pixel point coordinates and the pixel points in the pixel area form a mapping relation. The driving chip controls the display content of the display panel 6 based on the pixel point coordinates in the register, the pixel point coordinates in the register in the initial state are referenced to the pixel area outline, and the display range of the display panel 6 is the range of the pixel area. However, due to the fitting tolerance existing between the transparent cover plate 5 and the display panel 6 during the assembly, and the machining tolerance existing between the outline of the transparent cover plate 5 during the molding, the pixel region and the transparent cover plate 5 may not be aligned, that is, there may be a certain misalignment between the pixel region and the transparent cover plate 5, so that the display content of the display panel 6 is misaligned relative to the transparent cover plate 5, and therefore, the coordinates of the pixels in the register need to be corrected and compensated to ensure the accurate display effect of the transparent cover plate 5.
In the process of calibrating and compensating the coordinates of the pixel points in the register, one point of the display panel 6 needs to be defined as a calibration point 13, the number of the calibration points 13 can be one or multiple, when the number of the calibration points 13 is one, a central point is usually selected, and when the number of the calibration points 13 is multiple, an equal division point can be selected. For example, in the present embodiment, the calibration point 13 is the center point of the pixel area, and is represented by a black square. At this time, the calibration point 13 is generated with reference to the pixel area outline.
The display panel 6 is lit up and the display panel 6 is controlled to display the calibration points 13.
Step S2: acquiring the outline of the transparent cover plate and a first coordinate value of the calibration point relative to a first coordinate system;
in the process of calibrating and compensating the coordinates of the pixel points in the register, the actual outline of the transparent cover plate 5 and the position of the calibration point 13 relative to the transparent cover plate 5 need to be acquired, and the data can be acquired in an image processing mode.
For example, in the present embodiment, the outline of the transparent cover 5 is photographed by a CCD (Charge-coupled Device) to the transparent cover 5, and then the image processing is performed to obtain the outline of the transparent cover 5, the length and width data of the transparent cover 5, and the first coordinate value of the calibration point 13 in the first coordinate system with reference to the outline of the transparent cover 5.
Step S4: calculating a second coordinate value of the reference point in the transparent cover plate relative to the first coordinate system;
after the information related to the outline of the transparent cover plate 5, such as the outline, etc., is obtained, the second coordinate value of the reference point corresponding to the calibration point 13 may be obtained, where the reference point is a point corresponding to the calibration point 13, for example, when the calibration point 13 is a center point of a pixel region, the reference point is a center point of the transparent cover plate 5, and the center point of the transparent cover plate 5 is a center point of the outline, so that after the information related to the outline is obtained, the second coordinate value of the reference point may be obtained through calculation.
Step S5: calculating a coordinate deviation value of the first coordinate value relative to the second coordinate value;
when the pixel area of the display panel 6 and the transparent cover 5 are not aligned, the reference point and the calibration point 13 cannot coincide, i.e. there is a certain deviation. By calculating the coordinate deviation value of the first coordinate value with respect to the second coordinate value, it is possible to judge whether or not the calibration point 13 has a deviation from the reference point, and the degree of the deviation.
Step S6: and compensating the pixel point coordinates of a register in the driving chip according to the coordinate deviation value.
The coordinate deviation value obtained in step S5 indicates the deviation degree of the pixel region with respect to the transparent cover plate, the coordinate deviation value is compensated to the original pixel coordinates in the register, the pixel coordinates in the register are updated to the compensated pixel coordinates, the driving chip drives the display panel 6 to display based on the new pixel coordinates, the calibration point 13 can be aligned and overlapped with the reference point, the display content of the display panel 6 can also be enabled to maintain the correct position and angle of the transparent cover plate, and the accurate display effect is ensured.
In a possible implementation manner, after the contour and the length and width data of the transparent cover plate 5 are obtained, the driving chip may control only the pixel points within the contour of the transparent cover plate 5 to operate, that is, the effective display area of the display panel 6 is limited to the coverage area of the transparent cover plate 5, so as to achieve the frameless effect.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless explicitly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features mentioned in the different embodiments of the present application can be combined with each other as long as they do not conflict with each other.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims (10)

1. The utility model provides a display module assembly which characterized in that: the display panel is provided with a pixel area consisting of pixel points; the transparent cover plate is arranged on the outer side of the display panel along the display direction of the pixel area; in the projection of the pixel area to the transparent cover plate along the display direction, the edge of the pixel area at least coincides with the edge of the coverage area of the transparent cover plate.
2. The display module according to claim 1, wherein: the transparent cover plate and the display panel are of curved surface structures matched with each other.
3. The display module according to claim 2, wherein: the transparent cover plate comprises a cover plate body and a cover plate edge, one end of the cover plate edge is connected to the side edge of the cover plate body, and the other end of the cover plate edge extends towards one side of the display panel in a bending mode; the display panel is a flexible panel attached to the inner side of the transparent cover plate.
4. The display module according to claim 3, wherein: the display module assembly further comprises a bent circuit board, one end of the bent circuit board is connected with the end of the display panel, the other side of the bent circuit board is bent and extends to one side, away from the transparent cover plate, of the display panel, and the bent circuit board is provided with a driving chip for controlling the display of the display panel.
5. The display module according to claim 3, wherein: the display panel is a flexible OLED panel or a flexible liquid crystal panel.
6. The display module according to any one of claims 1-5, wherein: and the edge end face of the transparent cover plate is provided with a shading part for preventing light leakage.
7. The display module according to claim 6, wherein: the shading part is a black adhesive tape attached to the edge end face.
8. The display module according to any one of claims 1-5, wherein: the display panel is characterized in that a polaroid is arranged between the display panel and the transparent cover plate, the polaroid is attached to the outer side of the display panel, and the transparent cover plate is glued to the outer side of the polaroid through optical cement.
9. A display device, characterized in that: the display module comprises a mounting shell and the display module as claimed in any one of claims 1 to 8 mounted on the mounting shell, wherein the mounting shell is provided with an avoiding space for avoiding the convex end part of the display panel.
10. A calibration method of a display module is applied to the display module of any one of claims 1 to 7, wherein the display module comprises a driving chip for controlling the display of the display panel;
it is characterized by comprising:
driving the display panel to display the calibration points;
acquiring the outline of the transparent cover plate and a first coordinate value of the calibration point relative to a first coordinate system, wherein the first coordinate system is a coordinate system taking the outline as a reference;
calculating a second coordinate value of the reference point in the transparent cover plate relative to the first coordinate system;
calculating a coordinate deviation value of the first coordinate value relative to the second coordinate value;
and compensating the pixel point coordinates of a register in the driving chip according to the coordinate deviation value.
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