CN114822401B - Display device, source electrode chip on film and driving method - Google Patents
Display device, source electrode chip on film and driving method Download PDFInfo
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- CN114822401B CN114822401B CN202210754505.1A CN202210754505A CN114822401B CN 114822401 B CN114822401 B CN 114822401B CN 202210754505 A CN202210754505 A CN 202210754505A CN 114822401 B CN114822401 B CN 114822401B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/22—Control 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 using controlled light sources
- G09G3/30—Control 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 using controlled light sources using electroluminescent panels
- G09G3/32—Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/34—Control 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 by control of light from an independent source
- G09G3/36—Control 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 by control of light from an independent source using liquid crystals
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Abstract
The application discloses a display device, a source electrode chip on film and a driving method, wherein the display device comprises a first source electrode chip on film and a second source electrode chip on film, and the first source electrode chip on film and the second source electrode chip on film are both connected with a printed circuit board and a display panel; the first source electrode chip on film comprises a first source electrode driving chip and a first time sequence control chip, the second source electrode chip on film comprises a second source electrode driving chip, and the first time sequence control chip is electrically connected with the first source electrode driving chip and the second source electrode driving chip respectively; the first time sequence control chip receives a signal to be analyzed output by the printed circuit board, analyzes and generates and outputs a first analysis signal and a second analysis signal; the first source driving chip and the second source driving chip simultaneously drive the display panel according to the first analysis signal and the second analysis signal, and the display device can realize high-resolution display while adopting a Tconless framework.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display device, a source electrode flip-chip package and a driving method.
Background
For a display screen, for example, a display screen of nb (note book), along with the development of a product, the requirement for the quality of the product is higher and higher, and the requirement for a frame is narrower and narrower, which leads to the development cost of the product being increased, and in addition, for the development of a narrow frame, an electrical component determining one of the widths of the frames of the product is a TCON IC (timing control chip), which is usually packaged on a printed circuit board, however, the packaging of the TCON IC requires a larger space, which limits the size of the printed circuit board, and further limits the width of the frame of the product, in the existing narrow frame screen design, the TCON IC on the printed circuit board is usually removed, and the function of the TCON IC is integrated on a source electrode thin film (Tconless for short), so that an independent TCON IC can be reduced, and the effect of the narrow frame of the product is simultaneously achieved;
however, the current Tconless architecture can only be applied to HD (1366 × 768) resolution display devices, but is difficult to be applied to higher resolution display devices; therefore, how to achieve high-resolution display on the premise of adopting the Tconless architecture without changing the front-end design (for example, the control circuit board of NB) and without improving the production process of Source IC becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The present application aims to provide a display device, a source electrode chip on film and a driving method, which can realize high-resolution display while adopting a Tconless architecture.
The application discloses a display device, which comprises a display panel, a printed circuit board, a first source electrode chip on film and a second source electrode chip on film, wherein the printed circuit board is connected with the display panel; the first source electrode chip on film comprises a first source electrode driving chip and a first timing control chip, the second source electrode chip on film comprises a second source electrode driving chip, and the first timing control chip is electrically connected with the first source electrode driving chip and the second source electrode driving chip respectively; the first time sequence control chip receives a signal to be analyzed output by the printed circuit board, analyzes and generates and outputs a first analysis signal and a second analysis signal; the first source electrode driving chip receives the first analysis signal, the second source electrode driving chip receives the second analysis signal, and the first source electrode driving chip and the second source electrode driving chip drive the display panel according to the first analysis signal and the second analysis signal.
Optionally, the signal to be analyzed is an EDP signal, the first analysis signal is a first point-to-point signal, and the second analysis signal is a second point-to-point signal; the first timing control chip comprises a first group of output ports and a second group of output ports, the first timing control chip outputs the first point-to-point signals to the first source driving chip through the first group of output ports, and the first timing control chip outputs the second point-to-point signals to the second source driving chip through the second group of output ports.
Optionally, the printed circuit board is provided with a high-speed signal line connecting the first source chip on film and the second source chip on film, and the first timing control chip outputs the second analytic signal to the second source driver chip through the high-speed signal line.
Optionally, the second source electrode chip on film further includes a second timing control chip, the second timing control chip is configured to receive the second analytic signal and output the second analytic signal to the second source electrode driving chip, and the first source electrode chip on film and the second source electrode chip on film have the same specification.
Optionally, the display device further includes a control module, where the control module is configured to control a master-slave relationship between the first timing control chip and the second timing control chip; when the first time sequence control chip or the second time sequence control chip is set as a main time sequence control chip, receiving a signal to be analyzed and generating a first analysis signal and a second analysis signal; and when the first time sequence control chip or the second time sequence control chip is set as a slave time sequence control chip, receiving a second analysis signal and outputting the second analysis signal.
Optionally, only a second source driver chip is disposed on the second source chip on film, and the second source driver chip receives the second analytic signal.
Optionally, the display device further includes a compensation module, where the compensation module is connected to the first source driver chip and/or the second source driver chip, and is configured to compensate the first analytic signal and/or the second analytic signal, so that signal intensities of the first analytic signal and the second analytic signal are consistent.
Optionally, the first timing control chip is integrated into the first source driver chip as a functional module, and is uniformly packaged on the first source chip on film; or the first timing control chip and the first source electrode driving chip are respectively arranged on the first source electrode chip on film after being respectively packaged.
The application also discloses a source cover glass film for connect printed circuit board and display panel, be applied to as above arbitrary display device, source cover glass film includes source driver chip and time sequence control chip, the time sequence control chip is integrated in the source driver chip, the time sequence control chip includes input port, first group output port and second group output port, the input port is received treat analytic signal, the analytic first analytic signal of analysis generation and output and the analytic signal of second, first group output port output first analytic signal extremely the source driver chip, the output of second group output port the analytic signal of second extremely printed circuit board.
The present application also discloses a driving method applied to the display device as described in any one of the above, including the steps of:
the first time sequence control chip receives a signal to be analyzed and analyzes the signal to generate a first analysis signal and a second analysis signal; and
the first source electrode driving chip receives the first analytic signal, and after the second source electrode driving chip receives the second analytic signal, the first source electrode driving chip and the second source electrode driving chip simultaneously drive the display panel according to the first analytic signal and the second analytic signal.
According to the method, the first timing control chip and the first source electrode driving chip on the first source electrode chip on film and the second source electrode driving chip on the second source electrode chip on film are arranged, the first timing control chip receives a signal to be analyzed output by the printed circuit board and then analyzes the signal to generate two analysis signals which are respectively transmitted to the first source electrode driving chip and the second source electrode driving chip, and then the first source electrode driving chip and the second source electrode driving chip simultaneously drive the display panel to achieve high-resolution output.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present application;
fig. 2 is a schematic structural diagram of a display device according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of a source chip on film according to a third embodiment of the present application;
fig. 4 is a flowchart of a driving method of a fourth embodiment of the present application.
100, a display panel; 200. a printed circuit board; 210. a high speed signal line; 300. a first source electrode flip-chip film; 310. a first timing control chip; 311. an input port; 312. a first set of output ports; 313. a second set of output ports; 320. a first source driver chip; 400. a second source electrode flip chip film; 410. a second timing control chip; 420. a second source driver chip; 500. a display device.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
The present application will now be described in detail with reference to the drawings and alternative embodiments, it being understood that any combination of the various embodiments or technical features described below may form new embodiments without conflict.
In the current product, a TCON IC on a printed circuit board is removed, and the function of the TCON IC is integrated on a source electrode flip chip film (Tconless for short) so as to realize the important design of narrow frame design; in the display device adopting the Tconless architecture, after the TCON IC receives a signal to be analyzed (generally, an EDP signal), an analysis output analysis signal (generally, a point-to-point signal, or a P-P signal for short) is sent to the source driver chip on the source chip on film, and the source driver chip outputs the analysis signal to drive the display panel, thereby realizing the display of the display device.
In the prior art, taking an NB display device as an example, in order to implement a narrower frame, a Tconless architecture is adopted, and at this time, only one source electrode flip-chip film is generally adopted, and a TOCN IC is integrated in a source electrode driving chip on the source electrode flip-chip film, and at this time, as many signals to be analyzed are received by the TOCN IC, an analysis signal generated by corresponding analysis is output to the source electrode driving chip, which means that how many output channels are provided by the source electrode driving chip, and how many resolutions can be displayed.
However, today, limited by the manufacturing process of the source driver chip, the number of output channels on the source driver chip is limited, and the number of output channels on the source driver chip can only achieve the resolution of HD (1366 × 768), but cannot meet the output with higher resolution, such as FHD (1920 × 1080), etc., in order to achieve the display with FHD and higher resolution, the current solution is mainly:
the display device does not adopt a Tconless framework, a TCON IC is continuously packaged on a printed circuit board, FHD resolution display is realized through the TCON IC on the printed circuit board and two source electrode chip-on-films, but the area of the printed circuit board is larger because the TCON IC is packaged on the printed circuit board, the problem that a frame of a display screen is larger exists, even if FHD resolution display can be realized, the display device conflicts with a narrow frame screen pursued by the mainstream at present, and the display device is not a good solution;
second, a display device with Tconless structure, for example, an NB display device, an NB display panel includes an NB control circuit board at the front end, and an NB display screen (with a printed circuit board, a source flip-chip film, etc.), on the premise of adopting a Tconless architecture, a conversion circuit needs to be added at an NB control circuit board, after a signal to be analyzed (such as an EDP signal) is split into two signals, then the signal is transmitted to two source electrode flip-chip films through the printed circuit board for analysis and output, although the design can realize high resolution, the conversion circuit is complex, the stability and consistency of the signal are difficult to control, moreover, the conversion circuit is troublesome in terms of front-end design, and therefore, the inventors have obtained improvements of the present application under continuous research and experiment in consideration of the problems occurring in the above solutions, as follows:
fig. 1 is a schematic structural view of a display device according to a first embodiment of the present application, and as shown in fig. 1, a display device 500 is disclosed as a first embodiment of the present application, the display device 500 includes a display panel 100, and a printed circuit board 200, the printed circuit board 200 being connected to the display panel 100, the display device 500 further includes a first source flip-chip film 300 and a second source flip-chip film 400, the first source chip on film 300 and the second source chip on film 400 are both connected to the printed circuit board 200 and the display panel 100, the first source chip on film 300 includes a first source driver chip 320 and a first timing control chip 310, the second source chip on film 400 includes a second source driver chip 420, and the first timing control chip 310 is electrically connected to the first source driver chip 320 and the second source driver chip 420, respectively; the first timing control chip 310 receives a signal to be analyzed output by the printed circuit board 200, and analyzes the signal to generate and output a first analysis signal and a second analysis signal, the first source driving chip 320 receives the first analysis signal, the second source driving chip 420 receives the second analysis signal, and the first source driving chip 320 and the second source driving chip 420 simultaneously drive the display panel 100 according to the first analysis signal and the second analysis signal.
Compared with a display device adopting a Tconless architecture in the prior art, the conventional method that a TCON IC on a source electrode flip-chip film processes signals only for a source electrode driving chip on a current source electrode flip-chip film is broken through, the first timing control chip 310 on the first source electrode flip-chip film 300 not only processes signals to be analyzed corresponding to the first source electrode driving chip 320, but also processes signals to be analyzed corresponding to other source electrode flip-chip films, the first timing control chip 310 analyzes the signals to be analyzed, then transmits a first analysis signal generated by analysis to the first source electrode driving chip 320, transmits a second analysis signal to the second source electrode driving chip 420, and simultaneously outputs the signals to drive the display panel 100 to display through the first source electrode driving chip 320 and the second source electrode driving chip 420; therefore, the front end does not need to be changed (for example, a conversion circuit is added on a main control board of the front end to split a signal to be analyzed), a source driving chip with higher process requirement and higher channel number does not need to be adopted, and high-resolution display can be realized based on a Tconless framework on the premise of realizing a narrow frame.
A plurality of second source driver chips 420 may be provided, a plurality of second analytic signals may also be provided, the number of the second analytic signals is the same as the number of the second source driver chips 420, and a designer may select to set the number of the second source driver chips 420 according to the resolution of a display image when designing the display device 500, so as to realize a high-resolution display image; in addition, in the present embodiment, taking NB display device as an example, the printed circuit board 200 is a printed circuit board 200 in a display screen of the display device 500.
Optionally, in this embodiment, after receiving the EDP signal output by the printed circuit board 200, the first timing control chip 310 on the first source flip-chip 300 parses the EDP signal to generate a first parsing signal and a second parsing signal, where the first parsing signal is a first point-to-point (point-to-point) signal, the second parsing signal is a second point-to-point signal, the first timing control chip 310 includes a first group of output ports 312 and a second group of output ports 313, the first timing control chip 310 outputs the first point-to-point signal to the first source driver chip 320 through the first group of output ports 312, the first timing control chip 310 outputs the second point-to-point signal to the second source driver chip 420 through the second group of output ports 313, and the first source driver chip 320 and the second source driver chip 420 simultaneously drive the display panel 100 according to the first point-to-point signal and the second point-to-point signal to achieve high-resolution display .
In the display device adopting Tconless architecture in the prior art, the input end and the output end of the timing control chip are matched with the output channel of the source driving chip, and compared with the prior art, the first timing control chip 310 of the present application is additionally provided with a second group of output ports 313 in addition to the first group of output ports 312 corresponding to the first source driving chip 320, and the second group of output ports 313 are used for outputting the second point-to-point signal generated by the analysis of the first timing control chip 310 to the source driving chip of another source chip with a chip covered with a chip, thereby realizing display with higher resolution.
Wherein, with respect to the signal to be resolved and the resolved signal: the signal to be analyzed can be an EDP signal, the EDP signal is a high-speed signal, and the display device 500 transmits the EDP signal by using the EDP signal, compared with the LVDS signal, the signal transmission line for transmitting the EDP signal needs fewer pairs of lines, which is beneficial to high-speed signal transmission and realization of a narrow frame; however, in the prior art, the printed circuit board 200 at the rear end cannot directly split one group of EDP signals on one group of lines into two groups of EDP signals; the two existing solutions are also reasons why high-resolution display cannot be performed based on the Tconless architecture on the premise that the front-end design is not changed and the narrow frame is realized; based on the technical scheme of the application, high-resolution display can be realized by adopting an EDP signal based on a Tconless framework.
In order to quickly transmit the second analytic signal (i.e., the second point-to-point signal) to the second source driver chip 420 on the second source chip on film 400 while minimizing the signal loss, the following scheme is adopted in the embodiment: the printed circuit board 200 is provided with a high-speed signal line 210 connecting the first source flip-chip film 300 and the second source flip-chip film 400, and the first timing control chip 310 can output a second analytic signal generated by analysis to the second source driver chip 420 through the high-speed signal line 210. By doing so, transmission efficiency and transmission quality can be ensured, and by doing so, the driving requirements of a plurality of source flip-chip films can be realized even if the TCON IC is not disposed on the printed circuit board 200; of course, if the future process can ensure that the traces deposited on the glass substrate can also transmit high-speed signals, the second analytic signal can also be transmitted by using the traces deposited on the non-display area of the display panel 100.
In addition, in order to ensure that there is no obvious difference problem in the display picture, the specifications of the first analytic signal and the second analytic signal are completely the same, taking the example that the first source electrode chip on film 300 and the second source electrode chip on film 400 respectively drive the half-screen, the first timing control chip 310 splits the half generated by the analysis into the first analytic signal and the second analytic signal, and thus, the difference of the signals transmitted by the first source electrode chip on film 300 and the second source electrode chip on film 400 is correspondingly reduced, thereby reducing the problem of the difference in display; of course, the display device can also be split into a first analytic signal and a second analytic signal which are not equally divided, and at this time, a signal compensation module needs to be additionally arranged to avoid the problem of display difference.
In this embodiment, the first timing control chip 310 is integrated as a functional module in the first source driver chip 320 and is packaged on the first source chip on film 300 in a unified manner, or the first timing control chip 310 and the first source driver chip 320 are packaged separately and are respectively disposed on the first source chip on film 300, of course, in any setting manner, the first timing control chip 310 is used to receive a signal to be analyzed and analyze the signal to generate a first analysis signal and a second analysis signal, and the second source chip on film 400 may also be disposed in the same manner as the first source chip on film 300.
The second source electrode chip on film 400 may or may not have a timing control chip, and when the second source electrode chip on film 400 does not have a timing control chip, the chip on film in the prior art may be adopted without improving the chip on film, which may reduce the cost.
Based on the fact that the second source chip on film 400 is not provided with a timing control chip, the display device 500 further includes a compensation module, the compensation module is used for connecting the first source driver chip 320 and/or the second source driver chip 420, the second analyzing signal and/or the first analyzing signal are compensated for such that the signal strengths of the first analyzing signal and the second analyzing signal are consistent, and the first timing control chip 310, which is set as the master timing control chip, is prevented from generating a second analyzing signal when outputting the second analyzing signal to the second source driving chip 420 or the first source driving chip 320, the second analytic signal is subject to the impedance of the wire or the voltage fluctuation in the transmission process to cause the signal strength to be reduced, which causes the problem of display difference caused by the difference between the signal strength of the second analytic signal output to the display panel 100 and the signal strength of the first analytic signal output to the display panel 100.
In order to ensure that the first source driver chip 320 and the second source driver chip 420 can simultaneously drive the display panel 100 at the same time, the display device 500 further includes a synchronization module, which connects the first source driver chip 320 and the second source driver chip 420 to simultaneously drive the display panel 100, and of course, a bent signal transmission line may be disposed at the first set of output ports 312 of the first source driver chip 320 to make the time for the first source driver chip 320 to output a signal to the display panel 100 be the same as the time for the second source driver chip 420 to output a signal to the display panel 100, so as to simultaneously drive the display panel 100.
As follows, the scheme of disposing the timing control chip on the second source flip-chip film 400 is described in detail:
fig. 2 is a structural diagram of a display device according to a second embodiment of the present application, and as shown in fig. 2, in order to ensure consistency of production processes of a first source chip on film 300 and a second source chip on film 400, the second source chip on film 400 further includes a second timing control chip 410, the second timing control chip 410 is configured to receive the second analytic signal and output the second analytic signal to the second source driver chip 420, and specifications of the first source chip on film 300 and the second source chip on film 400 are the same.
The first source electrode flip chip 300 and the second source electrode flip chip 400 have the same production process, and when the first analytic signal is output to the display panel 100 and the second analytic signal is output to the display panel 100, the problem of obvious signal difference caused by overlarge process difference of the source electrode flip chip is avoided, so that the problem of display difference caused by signal difference is solved;
further, in order to distinguish the role of the first source chip on film 300 and the second source chip on film 400 conveniently when in use, the display device 500 further comprises a control module, wherein the control module is used for controlling the master-slave relationship between the first timing control chip 310 and the second timing control chip 410, and when the first timing control chip 310 or the second timing control chip 410 is set as a master timing control chip, the first timing control chip 310 or the second timing control chip 410 set as the master timing control chip receives a signal to be analyzed and outputs a first analysis signal and a second analysis signal; when the first timing control chip 310 or the second timing control chip 410 is set as a slave timing control chip, the first timing control chip 310 or the second timing control chip 410 set as the slave timing control chip receives a second resolution signal and outputs the second resolution signal.
When the display device 500 is assembled, only the same source flip-chip on film is required to be produced, and the master-slave relationship is distinguished by the control module, so that the first source flip-chip on film 300 and the second source flip-chip on film 400 are not required to be distinguished during the assembly, the assembly speed and the assembly efficiency are increased to a certain extent, and the first source flip-chip on film 300 and the second source flip-chip on film 400 are completely the same. In addition, in the using process, when the first timing control chip 310 or the second timing control chip 410 set as the master timing control chip has a problem that analysis cannot be performed, the first timing control chip 310 or the second timing control chip 410 set as the slave timing control chip can be set as the master timing control chip by the control module to continue to perform analysis, so that the service life of the display device 500 is prolonged to a certain extent.
Fig. 3 is a schematic structural diagram of a source chip on film according to a third embodiment of the present application, and as shown in fig. 3, a source chip on film is disclosed as a third embodiment of the present application, for connecting the printed circuit board 200 and the display panel 100, applied to the display device 500 as shown in the first embodiment, the source electrode chip on film comprises a source electrode driving chip and a time sequence control chip, the time sequence control chip is integrated in the source electrode driving chip, the timing control chip includes an input port 311, a first set of output ports 312 and a second set of output ports 313, the input port 311 receives the signal to be analyzed, analyzes the signal to generate and output a first analysis signal and a second analysis signal, the first set of output ports 312 outputs the first analytic signal to the source driver chip, the second set of output ports 313 outputs the second analytic signal to the printed circuit board 200.
When the source electrode chip on film is used for the display device, resolution display based on a Tconless framework can be realized; of course, the flip chip film of the present application can also be used for a low-resolution display device, and at this time, the second group of output ports can be in floating connection.
Fig. 4 is a flowchart of a driving method according to an embodiment of the present application, and as shown in fig. 4, as a third embodiment of the present application, a driving method is disclosed, which is applied to the display device according to the first embodiment, and includes the steps of:
s100: the first time sequence control chip receives the signal to be analyzed and analyzes the signal to generate a first analysis signal and a second analysis signal, the first analysis signal is output to the first source electrode driving chip, and the second analysis signal is output to the second source electrode driving chip; and
s200: the first source electrode driving chip receives the first analysis signal, and after the second source electrode driving chip receives the second analysis signal, the first source electrode driving chip and the second source electrode driving chip simultaneously drive the display panel to display according to the first analysis signal and the second analysis signal.
It should be noted that, the limitations of each step in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all the steps should be considered as belonging to the protection scope of the present application.
The technical solution of the present application can be applied to a wide range of NB display devices, and certainly can also be applied to various display panels, such as TN (Twisted Nematic) display panels, IPS (In-Plane Switching) display panels, VA (Vertical Alignment) display panels, MVA (Multi-Domain Vertical Alignment) display panels, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panels, and can be applied to the above solutions.
It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be considered as belonging to the protection scope of the present application.
Claims (8)
1. A display device comprises a display panel and a printed circuit board, wherein the printed circuit board is connected with the display panel, and the display device is characterized by also comprising a first source electrode chip on film and a second source electrode chip on film, wherein the first source electrode chip on film and the second source electrode chip on film are both connected with the printed circuit board and the display panel;
the first source electrode chip on film comprises a first source electrode driving chip and a first time sequence control chip, the second source electrode chip on film comprises a second source electrode driving chip, and the first time sequence control chip is electrically connected with the first source electrode driving chip and the second source electrode driving chip respectively;
the second source electrode chip on film also comprises a second time sequence control chip, and the specifications of the first source electrode chip on film and the second source electrode chip on film are the same;
the display device also comprises a control module, wherein the control module is used for controlling the master-slave relation between the first time sequence control chip and the second time sequence control chip;
when the first time sequence control chip or the second time sequence control chip is set as a main time sequence control chip, receiving a signal to be analyzed and analyzing to generate a first analysis signal and a second analysis signal; the first time sequence control chip or the second time sequence control chip receives a second analysis signal and outputs the second analysis signal when being set as a slave time sequence control chip;
when the first time sequence control chip is a main control chip, the first time sequence control chip receives a signal to be analyzed output by the printed circuit board, analyzes and generates and outputs a first analysis signal and a second analysis signal; the first source electrode driving chip receives the first analytic signal, the second source electrode driving chip receives the second analytic signal, and the first source electrode driving chip and the second source electrode driving chip drive the display panel simultaneously according to the first analytic signal and the second analytic signal.
2. The display device according to claim 1, wherein the signal to be analyzed is an EDP signal, the first analyzing signal is a first point-to-point signal, and the second analyzing signal is a second point-to-point signal;
the first timing control chip comprises an input port, a first group of output ports and a second group of output ports, wherein the input port is used for receiving the EDP signals, the first timing control chip outputs the first point-to-point signals to the first source electrode driving chip through the first group of output ports, and the first timing control chip outputs the second point-to-point signals to the second source electrode driving chip through the second group of output ports.
3. The display device according to claim 2, wherein the printed circuit board is provided with a high-speed signal line connecting the first source chip on film and the second source chip on film, and the first timing control chip outputs the second analytic signal to the second source driver chip via the high-speed signal line.
4. The display device according to claim 1, further comprising a synchronization module, wherein the synchronization module is connected to the first source driver chip and the second source driver chip, so that the first source driver chip and the second source driver chip drive the display panel at the same time.
5. The display device according to claim 1, further comprising a compensation module, connected to the first source driver chip and/or the second source driver chip, for compensating the first analytic signal and/or the second analytic signal, so that the first analytic signal and the second analytic signal have the same signal strength.
6. The display device according to claim 1, wherein the first timing control chip is integrated as a functional module in the first source driver chip and is uniformly packaged on the first source chip-on-film; or
The first timing control chip and the first source electrode driving chip are respectively arranged on the first source electrode chip on film after being respectively packaged.
7. A source chip on film, which is used for connecting a printed circuit board and a display panel and is applied to the display device as claimed in any one of claims 1 to 6, and is characterized by comprising a source driving chip and a time sequence control chip, wherein the time sequence control chip is integrated in the source driving chip, the time sequence control chip comprises an input port, a first group of output ports and a second group of output ports, the input port receives the signal to be analyzed, and analyzes and generates and outputs a first analysis signal and a second analysis signal, the first group of output ports outputs the first analysis signal to the source driving chip, and the second group of output ports outputs the second analysis signal to the printed circuit board.
8. A driving method applied to the display device according to any one of claims 1 to 6, comprising the steps of:
the first time sequence control chip receives a signal to be analyzed and analyzes the signal to generate a first analysis signal and a second analysis signal; and
the first source electrode driving chip receives the first analysis signal, and after the second source electrode driving chip receives the second analysis signal, the first source electrode driving chip and the second source electrode driving chip drive the display panel according to the first analysis signal and the second analysis signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210754505.1A CN114822401B (en) | 2022-06-30 | 2022-06-30 | Display device, source electrode chip on film and driving method |
| PCT/CN2022/141124 WO2024001098A1 (en) | 2022-06-30 | 2022-12-22 | Display device, source chip on film, and driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210754505.1A CN114822401B (en) | 2022-06-30 | 2022-06-30 | Display device, source electrode chip on film and driving method |
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| Publication Number | Publication Date |
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| CN114822401A CN114822401A (en) | 2022-07-29 |
| CN114822401B true CN114822401B (en) | 2022-09-27 |
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| CN202210754505.1A Active CN114822401B (en) | 2022-06-30 | 2022-06-30 | Display device, source electrode chip on film and driving method |
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| Country | Link |
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| CN (1) | CN114822401B (en) |
| WO (1) | WO2024001098A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114822401B (en) * | 2022-06-30 | 2022-09-27 | 惠科股份有限公司 | Display device, source electrode chip on film and driving method |
| CN117975816A (en) * | 2022-10-26 | 2024-05-03 | 成都辰显光电有限公司 | Spliced display panel and display device |
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Also Published As
| Publication number | Publication date |
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| CN114822401A (en) | 2022-07-29 |
| WO2024001098A1 (en) | 2024-01-04 |
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