WO2020140828A1 - 显示数据缺陷检测方法及装置 - Google Patents

显示数据缺陷检测方法及装置 Download PDF

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Publication number
WO2020140828A1
WO2020140828A1 PCT/CN2019/128787 CN2019128787W WO2020140828A1 WO 2020140828 A1 WO2020140828 A1 WO 2020140828A1 CN 2019128787 W CN2019128787 W CN 2019128787W WO 2020140828 A1 WO2020140828 A1 WO 2020140828A1
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Prior art keywords
display
data pattern
detection
defect
data
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PCT/CN2019/128787
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English (en)
French (fr)
Inventor
邓臣德
谭庆忠
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精电(河源)显示技术有限公司
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Publication of WO2020140828A1 publication Critical patent/WO2020140828A1/zh

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    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00Diagnosis, testing or measuring for television systems or their details

Definitions

  • the present invention belongs to the technical field of defect detection, and in particular relates to a method and device for detecting defect of display data.
  • TFT LCD Thin Film Transistor Liquid Crystal Display
  • LCD liquid crystal display
  • LCD Liquid Crystal Display
  • the vehicle-mounted system includes central control display, instrument display, co-pilot display and top panel display. These displays usually use liquid crystal displays.
  • the instrument systems installed on vehicles generally need to pass the requirements of standard testing.
  • the liquid crystal display is on the instrument system An important component of the LCD screen is the failure mode, and the instrument system needs to detect the cause of the failure mode and make a feedback report.
  • This technology needs to calculate all or part of the display data, and then compare the operation results to know whether the display data is defective, but this method requires a large amount of data to be calculated, the processor load is large, and the speed may be slow.
  • embodiments of the present invention provide a display data defect detection method and device to solve the majority of display defect detection technology in the prior art is carried out in the production stage of the product, the relevant detection technology needs to display Pause in order to activate the detection device to detect the display module, which brings great inconvenience to users of the vehicle-mounted system.
  • a first aspect of an embodiment of the present invention provides a display data defect detection method, including:
  • the method further includes: if the detection data pattern is consistent with the reference data pattern, acquiring another one carried in the display signal transmitted from the signal source generator to the display screen module A detection data pattern, using the received detection data pattern as a new detection data pattern, and re-executing whether the detection data pattern is consistent with the pre-stored reference data pattern.
  • the method before the acquiring another detection data pattern carried in the display signal transmitted from the signal source generator to the display screen module, the method further includes:
  • the detection data pattern is transmitted through a data line between the signal source generator and the display screen module.
  • the detection data pattern is a combination of voltage patterns applied to the data line between the signal source generator and the display screen module.
  • the detection data patterns applied to the data lines are all low-level voltage data patterns, high-level voltage data patterns, or data patterns of adjacent data lines with opposite voltages.
  • the method further includes: recording the number of times the detection data pattern and the reference data pattern that are inconsistent occur.
  • the method further includes: recording the data position of the error, the data pattern in which the error occurred, and the data pattern placement location, and storing it in the post Storage.
  • the detection data pattern is carried in a blank area of the display signal.
  • a second aspect of an embodiment of the present invention provides a display data defect detection apparatus, including:
  • the detection data pattern detection module is used to obtain the detection data pattern carried in the display signal transmitted from the signal source generator to the display screen module, and detect whether the detection data pattern is consistent with the pre-stored reference data pattern;
  • a cumulative display defect determination module configured to determine a cumulative display defect of the display signal in the display area of the display screen to be detected according to a pre-stored defect detection standard if the detected data pattern is inconsistent with the reference data pattern;
  • a display defect alarm module configured to display a defect alarm if the cumulative display defect exceeds a preset display defect threshold.
  • a third aspect of the embodiments of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program is implemented by a processor as described in the first aspect above Methods.
  • the beneficial effects of the embodiments of the present invention are as follows: after the above solution is adopted, the detection data pattern in the display signal can be directly compared with the reference data pattern, and display is performed without pausing the display of the display area. Defect detection, if the comparison shows that the test data pattern and the reference data pattern are inconsistent, it is helpful to detect whether the signal transmission between the signal source (driver) and the display module (receiver) is abnormal, and determine the display area.
  • Cumulative display defects and according to the specific conditions of the cumulative display defects, alert the staff to indicate that there is a problem in the display area, and can detect the display data in real time without stopping the display area, which improves the stability and accuracy of the display data and facilitates The use of vehicle system users.
  • FIG. 1 is a flow chart of steps of a method for detecting display data defects provided by an embodiment of the present invention
  • FIG. 2 is a timing diagram of a display screen to be detected provided by an embodiment of the present invention.
  • FIG. 3 is a timing diagram of a display screen to be detected provided by another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a combination of display data defect detection data patterns provided by an embodiment of the present invention.
  • FIG. 5 is a combined schematic diagram of a display data defect detection data pattern provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a display data defect detection device provided by an embodiment of the present invention.
  • Invention Example 1 is a schematic structural diagram of a display data defect detection device provided by an embodiment of the present invention.
  • FIG. 1 it is a flowchart of steps of a method for detecting display data defects provided by an embodiment of the present invention, including:
  • Step S101 Obtain the detection data pattern carried in the display signal transmitted from the signal source generator to the display screen module, and detect whether the detection data pattern is consistent with the pre-stored reference data pattern.
  • the display screen in the embodiment of the present application mainly refers to a liquid crystal display screen, and may also include an OLED or other display screens suitable for this detection mode.
  • Step S102 If the detected data pattern is inconsistent with the reference data pattern, determine the cumulative display defect of the display signal in the display area of the display screen to be detected according to a pre-stored defect detection standard.
  • the reference data pattern sequentially judges each item of the detection data pattern, and if there is a difference, the detection data pattern is considered to be inconsistent with the reference data pattern.
  • the data will change, for example, from 1 to 0 or from 0 Change 1.
  • record the situation and further record the number of occurrences of the inconsistent data unit.
  • Step S103 If the cumulative display defect exceeds a preset display defect threshold, perform a display defect warning.
  • the detection data pattern in the display signal can be directly compared with the reference data pattern, without displaying the display area for display defect detection, if the comparison results that the detection data pattern is inconsistent with the reference data pattern, It is helpful to detect whether there is abnormality in the signal transmission between the signal source (driver) and the display module (receiver), determine the cumulative display defects in the display area, and perform alarm reminding work according to the specific conditions of the cumulative display defects There is a problem in the personnel display area.
  • the display data can be detected in real time without stopping the display area display, which improves the stability and accuracy of the display data and facilitates the use of the vehicle system user.
  • the detection data pattern is carried in a blank area of the display signal.
  • the display area is used to display the relevant data of the vehicle-mounted system, and is located in the center area of the display screen to be detected, and the blank area is used to display the relevant data of the vehicle-mounted system in the display area.
  • the display signal can be written into the display data line by line from left to right from top to bottom.
  • the blank area is the blank time other than the display signal time.
  • the signal source generator outputs a detection data pattern from the blank area of the display signal of the display screen to be detected according to the preset output sequence of the detection data pattern, and the reference data pattern is stored in the timing controller (Timing) of the display module to be detected Controller,
  • the detection data pattern is added to the right and the bottom of the display area of the display signal source, that is to say, the method sends the detection data pattern and the display signal at the scheduled time point, specifically
  • the preset detection data is added after each row of display signals or each column of display signals, and the display signals are sent over time, and then the display module compares the detection data pattern and the reference data pattern to know whether the data is unstable. Or interference problems.
  • This method requires the signal source 1C and the timing controller of the display module (Timing Controller,
  • TCON 1C is also equipped with the function of supporting data pattern detection. It can also be said that the signal source 1C and TCON 1C have the function of recognizing the detection data pattern distinguished from the display signal. In this embodiment, all tests Both the data pattern and the reference data pattern can be preset in the display signal source 1C and the TCON 1C in the display module, respectively. There is no need to upgrade the signal source hardware resources in particular, and it is easy to use.
  • the resolution of the display signal source generator is set such that the height and width are respectively higher than the height and width of the fixed resolution.
  • the above two embodiments can be implemented in a blank area, for example, adding detection data patterns to the right and bottom of the display area, but in the latter embodiment, as shown in FIG. 3, the resolution set by the display signal source 1C
  • the test data pattern is included, and the resolution set by TCON 1C remains unchanged.
  • the original resolution is 1280x720
  • the resolution of the display source generator is set to 1284x722
  • the resolution of the TCON 1C is set to a fixed 12 80X720, so the TCON 1C receives the The signal can automatically identify the 4 straight pixels on the right side of the blank area outside the display area and the lower 2 horizontal pixels.
  • the display signal source only needs to cooperate with TCON 1C to simply set the resolution and change the display driver.
  • the detection data style can be increased or decreased according to the actual needs. The flexibility is higher and no additional hardware configuration is required.
  • the length of the effective data strobe signal is different.
  • the DE is used to distinguish the effective display signal from other signals.
  • the data signal corresponding to the period when DE is at a high potential will be regarded as For effective display signal.
  • the length of the DE signal is originally set, that is, the length is the time required to deliver a valid display signal, so the signal source needs to have a function to support the detection data pattern.
  • the resolution relatively extends the DE signal after considering the detection data pattern.
  • the horizontal DE and vertical DE respectively extend the time required to transmit the detection data.
  • the TC ON 1C needs to have the function of supporting and recognizing the detection data pattern as in the first embodiment, but this function is not required in the signal source, but only in setting the resolution and display driver Changes are made in the program, so the data style can be increased, decreased or changed by program modification according to actual needs, with high flexibility.
  • the detection data pattern output in the blank area of the display signal of the display screen can be directly compared with the reference data pattern, and display defect detection can be performed without pausing the display of the display area. If the comparison results in the detection data pattern It is inconsistent with the reference data style, which is helpful to detect whether the signal transmission between the signal source (driver) and the display module (receiver) is abnormal, determine the cumulative display defects in the display area, and according to the cumulative display defects Specific conditions to alert the driver/staff display There is a problem in the area, and the display data can be detected in real time without stopping the display in the display area, which improves the stability and accuracy of the display data and facilitates the use of vehicle system users.
  • the method further includes:
  • the detection data pattern is consistent with the reference data pattern, obtain another detection data pattern carried in the display signal transmitted from the signal source generator to the display screen module, and use the received detection data pattern as For the new detection data pattern, re-execute the step of detecting whether the detection data pattern is consistent with the pre-stored reference data pattern.
  • the detection data pattern is consistent with the reference data pattern, it means that there is no fault corresponding to the detection data pattern in the display area of the display screen to be detected, then the display signal transmitted from the signal source generator to the display screen module is acquired Another test data pattern carried in, and then use the received test data pattern as the new test data pattern, and re-execute the test to see if the test data pattern is consistent with the pre-stored reference data pattern, and if they are consistent, output another one again If the test data patterns are inconsistent, the cumulative display defects of the display signals in the display area of the display screen to be tested are determined according to the pre-stored defect detection standards.
  • different detection data patterns refer to different patterns composed of voltages applied to each data line, and there may be multiple detection data patterns.
  • there are 12 types of detection data patterns which specifically include applicable Detection in RGB, openLDI (open LVDS display interface, LVDS (Low Voltage Differential Signaling)), eDP (embedded display port, embedded display interface) and mini-LVDS (mini LVDS) display interface Data style.
  • the method before acquiring another detection data pattern carried in the display signal transmitted from the signal source generator to the display screen module, the method further includes:
  • a data pattern is received for a round of data bit positions (R0-B7) received.
  • R0-B7 data bit positions
  • the detection data pattern is approximately the time taken by the line between the two detection data patterns. If it is the former, the components of a frame can be subdivided into consideration.
  • the time of one frame includes vertical timing: Vsync+VBP+VAdr+VFP, and each line in the vertical timing includes: Hsync+ HBP+Hadr +HFP.
  • HBP Horizontal Sync Pulse Start Timing, Horizontal back porch
  • HFP horizontal Sync pulse end timing, Horizontal front porch
  • the detection data pattern can actually occupy all/part of the time of HBP or HFP.
  • a detection data pattern falls on the right side of the blank area.
  • the position is (R0-B7), and the interval for detecting the data pattern is one line of Hsyc+HBP+Hadr+the remaining HFP.
  • continuous detection data patterns can be added to the Hadr in V FP, and the peers continuously detect data
  • the interval time between patterns can be regarded as 0, and the detection data patterns of adjacent rows in VFP are separated by the time of Hsyc+HBP+HFP. Due to the large space under the display area, you can use repeated test data patterns for a longer time and meticulous test
  • the detection data pattern is transmitted through a data line between the signal source generator and the display screen module.
  • the detection data pattern is a combination of voltage patterns applied to the data line between the signal source generator and the display screen module.
  • the detection data patterns applied to the data lines are all low voltage voltage data patterns, high voltage voltage data patterns, or adjacent data lines detection data patterns having opposite voltages.
  • R0, GO, and B0 are the first three units of detection data in one type of detection data in the blank area after the effective display of a row of pixels is completed, followed by Data units R1, Gl, Bl; R2, G2, B2...Rn, Gn, Bn, depending on the length of the detection data used. Since the detection data pattern is transmitted from the signal source to the display module through the data line, the data unit is on the data line The allocation depends on the type of data line interface used, such as the above-mentioned OpenLDI VESA dual 8 lines, so the data style also reflects the corresponding voltage level when the data line transmits the detection data.
  • Figure 4 shows multiple detection data patterns as an example: Detection data pattern 1: full low bit (represented by all 0s), that is, low bit voltage is applied to all data lines; detection data pattern 2: full high bit (represented by all 1s) , That is, high voltage is applied to all data lines; detection data patterns 3 and 4 are examples used in the RGB display interface interface: RGB Alt. 1 and RGB Alt. 2, that is, the voltage between adjacent data lines is opposite That is, the high voltage and the low voltage between the data lines are alternately implemented; the detection data patterns 5 to 8 are the detection data patterns applied in the VESA format in the LVDS display interface interface. Among them, in the detection data patterns 5 and 6, the voltages of the adjacent data lines are the same.
  • the voltages of the adjacent data lines are opposite, that is, the high voltage between the data lines Alternately implemented with low voltage.
  • the detection data patterns 9 to 12 are the detection data patterns applied in the JEIDA format in the OpenLDI display interface. Among them, in the detection and detection data patterns 9 to 10, the voltages of the adjacent data lines are the same (the same is the high/low voltage), and in the detection and detection data patterns 11 to 12, the voltages of the adjacent data lines are opposite , That is to say, the high voltage and the low voltage between the data lines are alternately implemented.
  • the combination of detection data patterns refers to changing/maintaining a certain detection data pattern over time, or alternately using specific multiple detection data patterns.
  • the data pattern statically lists the data units (high voltage/low voltage) in the data bit positions (eg R0-B7), and the data pattern combination dynamically lists each data bit position The data unit in changes with time. Both are related to the data line of the transportation data.
  • the data pattern combination i means that all data lines maintain low voltage for a period of time
  • the data pattern combination ii means that all data lines maintain high voltage for a period of time.
  • the data pattern combination iii and iv, the data pattern combination v and vi, and the data pattern combination vii and vii respectively indicate that the data lines in the display interface interfaces of RGB, OpenLDI VESA, and OpenLDI JEIDA alternate between high and low voltages over time.
  • the data pattern combination k is a variety of data pattern combinations.
  • the voltage level can be maintained for a period of time, and alternate high and low voltages can be applied at another time, which helps to test random interference, such as ESD and EMI.
  • this random test is suitable for detecting the case where the data pattern is added to the right of the blank area. Using different data pattern combination tests can help to test out abnormal problems with different data lines.
  • the method further includes: recording the number of occurrences of the inconsistency between the detection data pattern and the reference data pattern.
  • the method further includes: recording the data bit position of the error, the data pattern in which the error occurred, and the data pattern placement position, and Store in register.
  • the data bit position of the error (R0-B7), the data pattern in which the error occurred, and the data pattern placement location can be recorded, accumulated and stored in the register, and the cause of the problem can be further determined by the relevant data.
  • the data bit position can correspond to the data line (transport line), which is different according to different display interfaces, for example, in OpenLDI
  • the first group of data lines transmits GO, R5, R4, R3, R2, Rl, R0
  • the second group of data lines transmits Bl, BO, G5, G4, G3, G2, G1
  • the data line transmits 0 (or DE), 0 (or Vsyc), 0 (or Hsyc), B5, B4, B3, B2, and the fourth group of data lines transmits 0, B7, B6, G 7, G6, R7, R6. Therefore, when it is known that the data is abnormal by detecting the data pattern, it is possible to find out that the corresponding data line has a problem, so that it can be estimated that the display data sent by the data line may also have a problem.
  • the threshold criterion can only consider whether there is an inconsistency each time a test data pattern is added, and then calculate how many data patterns are detected to be inconsistent over a period of time. For example, the detection data is added to the right of each line of the display area in one frame. If the accumulated inconsistent detection data exceeds one hundred times in three seconds, the threshold is exceeded (one hundred recording events in three seconds). The threshold criterion may also consider the occurrence of a data unit inconsistency in each detected data pattern, and then calculate the number of times that all data units in each data pattern added during a period of inconsistency occur. For example, with the same setting, it is calculated whether the accumulated inconsistent data units exceed three hundred times in three seconds.
  • FIG. 6 it is a schematic structural diagram of a display data defect detection apparatus provided by an embodiment of the present invention, including:
  • the detection data pattern detection module 601 is configured to acquire the detection data pattern carried in the display signal transmitted from the signal source generator to the display screen module, and detect whether the detection data pattern is consistent with the pre-stored reference data pattern.
  • the pixel position determination module 602 of the display area is configured to: If they are inconsistent, the cumulative display defects of the display signals in the display area of the display screen to be detected are determined according to the pre-stored defect detection standards.
  • the cumulative display defect determination module 603 is configured to perform a display defect alarm if the cumulative display defect exceeds a preset display defect threshold.
  • the apparatus further includes:
  • the detection data pattern replacement module is configured to acquire another detection data pattern carried in the display signal transmitted from the signal source generator to the display module if the detection data pattern is consistent with the reference data pattern Taking the received detection data pattern as the new detection data pattern, and re-executing the step of detecting whether the detection data pattern is consistent with the pre-stored reference data pattern.
  • the detection data pattern replacement module is further configured to: send a command to output another detection data pattern to the signal source generator after a preset time interval.
  • the detection data pattern is transmitted through a data line between the signal source generator and the display screen module.
  • the detection data pattern is a combination of voltage patterns applied to the data line between the signal source generator and the display screen.
  • the detection data patterns applied to the data lines are all low voltage voltage data patterns, high voltage voltage data patterns, or adjacent data lines detection data patterns having opposite voltages.
  • the cumulative display defect determination module is further used to record the number of occurrences of the inconsistency between the detection data pattern and the reference data pattern.
  • the cumulative display defect determination module is also used to record the location of the data bit in error, the data pattern in which the error occurred, and the data pattern placement location, and store it in the register.
  • the detection data pattern output in the blank area of the display signal of the display screen can be directly compared with the reference data pattern, and display defect detection can be performed without pausing the display of the display area. If the comparison results in the detection data pattern It is inconsistent with the reference data style, which is helpful to detect whether the signal transmission between the signal source (driver) and the display module (receiver) is abnormal, determine the cumulative display defects in the display area, and according to the cumulative display defects The specific situation is to warn the staff that there is a problem in the display area.
  • the display data can be detected in real time without stopping the display area display, which improves the stability and accuracy of the display data and facilitates the use of vehicle system users.
  • each functional unit and module is used as an example for illustration. In practical applications, the above-mentioned functions may be allocated by different The functional units and modules are completed, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.
  • the functional units and modules in the embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may use hardware It can also be implemented in the form of software functional units.
  • the specific names of each functional unit and module are only for the purpose of distinguishing each other, and are not used to limit the protection scope of the present application. For specific working processes of the units and modules in the above system, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described herein again.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the modules or units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be The combination can either be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
  • the unit described as a separate component may or may not be physically separated, as a unit
  • the displayed component may or may not be a physical unit, that is, it may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware, or in the form of a software functional unit.
  • the integrated module/unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the present invention can implement all or part of the processes in the methods of the above embodiments, and can also be completed by a computer program instructing relevant hardware.
  • the computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, the steps of the foregoing method embodiments may be implemented.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate form.
  • the computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media, etc.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electrical carrier signals telecommunication signals
  • software distribution media etc.

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Abstract

本申请适用于缺陷检测技术领域,提供了一种显示数据缺陷检测方法及装置。所述方法包括:获取从信号源发生器传送到显示屏模组的显示信号中携带的检测数据式样,并检测检测数据式样与预存的参考数据式样是否一致,若检测数据式样与参考数据式样不一致,则根据预存的缺陷检测标准确定待检测显示屏显示区中显示信号的累积显示缺陷,若累积显示缺陷超过预设的显示缺陷阈值,则进行显示缺陷告警。采用上述方案后,能在不停止显示区显示的情况下实时检测显示数据,提高了显示数据的稳定性和准确性,方便了车载系统用户的使用。

Description

显示数据缺陷检测方法及装置
[0001] 本申请要求于 2019年 1月 4日提交、 申请号为 201910008060.0、 发明名称为“显示 数据缺陷检测方法及装置”的中国专利申请的优先权, 其全部内容通过引用并入 此文。
技术领域
[0002] 本发明属于缺陷检测技术领域, 尤其涉及一种显示数据缺陷检测方法及装置。
背景技术
[0003] 5见有各种显示器, 例如液晶显示器 (LCD, Liquid Crystal Display)中的薄膜电晶 体液晶显示器 (TFT LCD, Thin Film Transistor Liquid Crystal Display), 被越来越 多地应用在车载系统上, 车载系统包括中控显示、 仪表显示、 副驾显示和天板 显示等方面, 这些显示通常采用了液晶显示器, 安装在车辆上的仪表系统一般 须要通过标准检测的要求, 液晶显示屏是仪表系统上的一个重要组件, 液晶显 示屏会出现失效模式, 而仪表系统需要对失效模式的成因检测出来并且作出回 馈报告。
[0004] 5见有的仪表系统在收到失效报告后作出相对应的复修动作, 例如重置、 重启组 件电源、 重启仪表系统或启动后备方案并制作失效纪录等, 大部分如显示花点 、 闪屏、 跳屏、 画面变色和黑屏等显示失效模式的成因是由于显示数据存在错 误或缺陷所引致, 有些情况, 上述显示错误是归因于 LCD控制模组驱动信号异 常或显示模组接收异常等情况, 现时大多数的显示缺陷检测技术是在产品生产 阶段进行, 有关的检测技术需要将显示暂停, 以便启动检测装置来对显示模组 进行检测, 对车载系统的用户带来了极大的不便。 对于针对操作中的显示屏显 示数据的检测技术, 一般使用循环冗余校验 (Cyclic Redundancy Check, CRC)
, 该技术需要将全部或部分显示数据运算, 然后比较运算结果, 从而得知显示 数据是否存在缺陷, 但这种方法需要计算大量数据, 处理器负荷大, 且速度可 能较慢。
发明概述 技术问题
问题的解决方案
技术解决方案
[0005] 有鉴于此, 本发明实施例提供了一种显示数据缺陷检测方法及装置, 以解决现 有技术中大多数的显示缺陷检测技术是在产品生产阶段进行, 有关的检测技术 需要将显示暂停, 以便启动检测装置来对显示模组进行检测, 对车载系统的用 户带来了极大的不便的问题。
[0006] 本发明实施例的第一方面提供了一种显示数据缺陷检测方法, 包括:
[0007] 获取从信号源发生器传送到显示屏模组的显示信号中携带的检测数据式样, 并 检测所述检测数据式样与预存的参考数据式样是否一致;
[0008] 若所述检测数据式样与所述参考数据式样不一致, 则根据预存的缺陷检测标准 确定所述待检测显示屏显示区中显示信号的累积显示缺陷;
[0009] 若所述累积显示缺陷超过预设的显示缺陷阈值, 则进行显示缺陷告警。
[0010] 作为进一步的技术方案, 所述方法还包括: 若所述检测数据式样与所述参考数 据式样一致, 则获取从信号源发生器传送到显示屏模组的显示信号中携带的另 一种检测数据式样, 将接收的检测数据式样作为新的检测数据式样, 重新执行 所述检测数据式样与预存的参考数据式样是否一致的步骤。
[0011] 作为进一步的技术方案, 在所述获取从信号源发生器传送到显示屏模组的显示 信号中携带的另一种检测数据式样之前, 还包括:
[0012] 经过预设时间间隔发送输出另一种检测数据式样指令至所述信号源发生器。
[0013] 作为进一步的技术方案, 通过所述信号源发生器与所述显示屏模组之间的数据 线输送所述检测数据式样。
[0014] 作为进一步的技术方案, 所述检测数据式样为施加到所述信号源发生器与所述 显示屏模组之间的数据线的电压式样的组合。
[0015] 作为进一步的技术方案, 施加到数据线的检测数据式样均为低位电压数据式样 、 高位电压数据式样或相邻数据线的检测数据式样电压相反的数据式样。
[0016] 作为进一步的技术方案, 所述若所述检测数据式样与所述参考数据式样不一致 , 还包括: 记载不一致的所述检测数据式样与所述参考数据式样发生的次数。 [0017] 作为进一步的技术方案, 所述若所述检测数据式样与所述参考数据式样不一致 , 还包括: 记录出错的数据位位置、 发生错误的数据式样和数据式样放置位置 , 并存储在寄储器中。
[0018] 作为进一步的技术方案, 在所述显示信号的空白区中携带所述检测数据式样。
[0019] 本发明实施例的第二方面提供了一种显示数据缺陷检测装置, 包括:
[0020] 检测数据式样检测模块, 用于获取从信号源发生器传送到显示屏模组的显示信 号中携带的检测数据式样, 并检测所述检测数据式样与预存的参考数据式样是 否一致;
[0021] 累积显示缺陷确定模块, 用于若所述检测数据式样与所述参考数据式样不一致 , 则根据预存的缺陷检测标准确定所述待检测显示屏显示区中显示信号的累积 显示缺陷;
[0022] 显示缺陷告警模块, 用于若所述累积显示缺陷超过预设的显示缺陷阈值, 则进 行显示缺陷告警。
[0023] 本发明实施例的第三方面提供了一种计算机可读存储介质, 所述计算机可读存 储介质存储有计算机程序, 所述计算机程序被处理器执行时实现如上述第一方 面所述的方法。
发明的有益效果
有益效果
[0024] 本发明实施例与现有技术相比存在的有益效果是: 采用上述方案后, 能直接将 显示信号中的检测数据式样与参考数据式样进行对比, 不用暂停显示区的显示 来进行显示缺陷检测, 若对比得出检测数据式样与参考数据式样不一致, 有助 于检测出信号源 (驱动方) 与显示模组 (接收方) 之间的信号传送有没有出现 异常, 确定显示区中的累积显示缺陷, 并根据累积显示缺陷的具体情况进行告 警提醒工作人员显示区存在问题, 能在不停止显示区显示的情况下实时检测显 示数据, 提高了显示数据的稳定性和准确性, 方便了车载系统用户的使用。 对附图的简要说明
附图说明
[0025] 为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例或现有技术描 述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是 本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性 的前提下, 还可以根据这些附图获得其他的附图。
[0026] 图 1是本发明实施例提供的显示数据缺陷检测方法的步骤流程图;
[0027] 图 2是本发明实施例提供的待检测显示屏的时序图;
[0028] 图 3是本发明另一实施例提供的待检测显示屏的时序图;
[0029] 图 4是本发明实施例提供的显示数据缺陷检测数据式样的组合示意图;
[0030] 图 5是本发明实施例提供的显示数据缺陷检测数据式样的组合示意图;
[0031] 图 6是本发明实施例提供的显示数据缺陷检测装置的结构示意图。 发明实施例
本发明的实施方式
[0032] 以下描述中, 为了说明而不是为了限定, 提出了诸如特定系统结构、 技术之类 的具体细节, 以便透彻理解本发明实施例。 然而, 本领域的技术人员应当清楚 , 在没有这些具体细节的其它实施例中也可以实现本发明。 在其它情况中, 省 略对众所周知的系统、 装置、 电路以及方法的详细说明, 以免不必要的细节妨 碍本发明的描述。
[0033] 为了说明本发明所述的技术方案, 下面通过具体实施例来进行说明。
[0034] 如图 1所示, 为本发明实施例提供的一种显示数据缺陷检测方法的步骤流程图 , 包括:
[0035] 步骤 S101, 获取从信号源发生器传送到显示屏模组的显示信号中携带的检测数 据式样, 并检测所述检测数据式样与预存的参考数据式样是否一致。
[0036] 具体的, 本申请实施例中的显示屏主要是指液晶显示屏, 也可以包括 OLED或 其他适合这种检测模式的显示屏。
[0037] 步骤 S102, 若所述检测数据式样与所述参考数据式样不一致, 则根据预存的缺 陷检测标准确定所述待检测显示屏显示区中显示信号的累积显示缺陷。
[0038] 具体的, 参考数据式样依次对检测数据式样的每一项进行判断, 若有一项不同 , 则认为检测数据式样与参考数据式样不一致。 在一个具体实施例中, 当每次 数据在运输中发生异常时, 例如受到干扰, 数据会发生改变, 例如从 1变 0或从 0 变 1。 当检测数据式样与参考数据式样比较后有不一致的情况, 纪录该情况, 还 可以进一步纪录不一致数据单位发生的次数。
[0039] 步骤 S103 , 若所述累积显示缺陷超过预设的显示缺陷阈值, 则进行显示缺陷告 警。
[0040] 采用上述方案后, 能直接将显示信号中的检测数据式样与参考数据式样进行对 比, 不用暂停显示区的显示来进行显示缺陷检测, 若对比得出检测数据式样与 参考数据式样不一致, 有助于检测出信号源 (驱动方) 与显示模组 (接收方) 之间的信号传送有没有出现异常, 确定显示区中的累积显示缺陷, 并根据累积 显示缺陷的具体情况进行告警提醒工作人员显示区存在问题, 能在不停止显示 区显示的情况下实时检测显示数据, 提高了显示数据的稳定性和准确性, 方便 了车载系统用户的使用。
[0041] 此外, 在一个具体实施例中, 在所述显示信号的空白区中携带所述检测数据式 样。
[0042] 具体的, 如图 2所示, 显示区用于显示车载系统的相关数据, 位于待检测显示 屏的中心区域, 空白区用于在显示区显示车载系统的相关数据时, 对显示区进 行检测, 显示信号可以从上至下地逐行从左至右写入显示数据, 空白区是显示 信号时间以外的留白时间。 信号源发生器按预先设定的检测数据式样输出顺序 从待检测显示屏的显示信号空白区输出一种检测数据式样, 参考数据式样存储 在待检测显示屏显示模组中的时序控制器 (Timing Controller,
TCON) IC (integrated circuit, 集成电路) 中。 其中, 在一个具体事例中, 在显 示信号源的显示区的右边和下边加入检测数据式样, 也就是说所述方法将检测 数据式样与显示信号在安排好的时间点送出, 具体来说是将预设的检测数据加 在每行显示信号之后或每一列显示信号之后, 与显示信号随着时间送出, 再由 显示模组对比检测数据式样和参考数据式样, 从而得知数据是否存在数据不稳 定或干扰问题。 这方法要求信号源 1C和显示模组的时序控制器 (Timing Controller,
TCON) 1C同样配有支持数据式样检测的功能, 也可以说信号源 1C和 TCON 1C具 有能辨认出区分于显示信号的检测数据样式的功能。 在该实施例中, 所有检测 数据式样和参考数据式样都可以分别预设在显示信号源 1C和显示模组中的 TCON 1C内, 无须特别在信号源硬件资源升级, 使用方便简单。
[0043] 在另一个具体事例中, 将显示信号源发生器的分辨率设定为其高度和宽度都分 别高于所述固定分辨率的高度和宽度。
[0044] 上述两个实施例都可以在空白区实施, 例如在显示区右边和下边加入检测数据 式样, 但在后一个实施例中, 如图 3所示, 显示信号源 1C设定的分辨率把检测数 据式样计算在内, 而 TCON 1C设定的分辨率则维持不变。 例如, 原本的分辨率 为 1280x720, 将显示信号源发生器的分辨率设定为 1284x722, 并且将 TCON 1C 的分辨率设定为固定的 1280X720, 因此 TCON 1C接收到来自显示信号源发生器 的信号时能自动辨认出在显示区外处于空白区右侧的 4歹_直像素和下侧 2行水 平像素, 只需要在 TCON 1C导入自动辨认出在显示区外位于空白区的检测数据 式样功能, 显示信号源只需配合 TCON 1C简单设定分辨率及更改显示驱动程序 , 检测数据式样可按实际需要增加或减少, 灵活性较高, 且不需要额外增加硬 件配置。
[0045] 上述两个实施例中区别在于其有效数据选通信号 (DE) 的长度不同, 该 DE用 于区分有效显示信号和其他信号, 在 DE处于高电位期间所对应的数据信号会被 视为有效显示信号。 在第一个实施例中, DE信号的长度为原本设定, 即其长度 为输送有效显示信号所需时间, 所以信号源需要有支持检测数据式样的功能。 而在第二个方法中, 分辨率在考虑检测数据式样后, 相对地延长了 DE信号。 水 平 DE和垂直 DE分别延长了相应于传送检测数据所需要的时间。 根据此方法, TC ON 1C与所述第一个实施例中同样需要具有支持和辨认检测数据式样的功能, 而 在信号源则不需要这功能, 而是只需要在设定分辨率和显示驱动程式上作出更 改, 因此数据式样可按实际需要通过程式修改增加减少或变更, 灵活性较高。
[0046] 采用上述方案后, 能直接将在显示屏的显示信号空白区输出的检测数据式样与 参考数据式样进行对比, 不用暂停显示区的显示来进行显示缺陷检测, 若对比 得出检测数据式样与参考数据式样不一致, 有助于检测出信号源 (驱动方) 与 显示模组 (接收方) 之间的信号传送有没有出现异常, 确定显示区中的累积显 示缺陷, 并根据累积显示缺陷的具体情况进行告警提醒驾驶员 /工作人员显示 区存在问题, 能在不停止显示区显示的情况下实时检测显示数据, 提高了显示 数据的稳定性和准确性, 方便了车载系统用户的使用。
[0047] 此外, 在一个具体实施例中, 所述方法还包括:
[0048] 若所述检测数据式样与所述参考数据式样一致, 则获取从信号源发生器传送到 显示屏模组的显示信号中携带的另一种检测数据式样, 将接收的检测数据式样 作为新的检测数据式样, 重新执行所述检测所述检测数据式样与预存的参考数 据式样是否一致的步骤。
[0049] 具体的, 若检测数据式样与参考数据式样一致, 代表待检测显示屏的显示区不 存在该检测数据式样对应的故障, 则获取从信号源发生器传送到显示屏模组的 显示信号中携带的另一种检测数据式样, 然后将接收到的检测数据式样作为新 的检测数据式样, 重新执行检测述检测数据式样与预存的参考数据式样是否一 致, 若一致, 则再次输出另一种检测数据式样, 若不一致, 则根据预存的缺陷 检测标准确定所述待检测显示屏显示区中显示信号的累积显示缺陷。 其中, 不 同的检测数据式样是指由施加到各条数据线的电压组成的不同图案, 检测数据 式样可以有多种, 在一个具体实施例中, 包括 12种检测数据式样, 具体包括了 可以应用在 RGB、 openLDI (开放式 LVDS显示接口, LVDS (Low Voltage Differential Signaling , 低电压差动信号) ) 、 eDP (embedded displayport, 嵌入 式显示接口) 和 mini-LVDS (微型 LVDS) 显示接口界面中的检测数据式样。
[0050] 此外, 在一个具体实施例中, 在所述获取从信号源发生器传送到显示屏模组的 显示信号中携带的另一种检测数据式样之前, 还包括:
[0051] 经过预设时间间隔发送输出另一种检测数据式样指令至所述信号源发生器。
[0052] 具体的, 接收了一回合的数据位位置 (R0-B7)就为之接收了一种数据式样。 据 此, 要计算每种检测数据式样之间的间隔时间, 首先要看看是不是每一行的像 素显示信号都加入检测数据式样, 或是间隔特定数目的行数才加入一种检测数 据式样。 如果是后者, 检测数据式样则约为两个检测数据式样之间的行所占的 时间。 如果是前者, 可将一个帧的组成部分细分考虑, 如图 2所示, 一帧的时间 包括垂直时序: Vsync+VBP+VAdr+VFP , 垂直时序中的每一行又包括: Hsync+ HBP+Hadr+HFP。 其中 Hadr为有效像素数据在开始到结束的时序, 也是一行中有 效像素数目, HBP (水平同步脉冲开始时序, Horizontal back porch) 表示水平同 步脉冲开始到一行的有效像素数据开始前的一段时序, 也表示有效像素数据开 始前不显示的像素个数, HFP (水平同步脉冲结束时序, Horizontal front porch) 表示一行的有效像素数据结束后到下一行同步脉冲开始前的时序, 也表示有效 像素数据结束后不显示的像素个数。 检测数据式样所占用的其实可以是全部 / 部分 HBP或 HFP的时间, 在每一行的像素显示信号都加入检测数据式样的情况下 , 例如一种检测数据式样是落在空白区右侧, 所占位置是 (R0-B7), 检测数据 式样的间隔就是一行的 Hsyc+HBP+Hadr+剩下的 HFP。 举个例子, 在一个分率率 为 1920X1200常规液晶显示屏中, 显示的帧率为 60Hz, 所以送出一种检测数据式 样所需时间约为 1/60= 16ms, Vsync=3 , VBP=5 , VFP=8及 Vadr=1200; Hsync=12 , HBP=16 , HFP=26 , Hadr=960, 所以每行需时 13.7^。 落在空白区右侧的检测 数据占 HFP的 7个像素, 所以每行都加入检测数据式样的情况下, 两次数据式样 之间的间隔约为 13.6^18= 检测数据式样所占用的还可以是全部 /部分 VFP中的 Ha dr的时间, 例如是一种或多种检测数据式样落在空白区下侧, 这情况下可以在 V FP中的 Hadr加入连续的检测数据式样, 同行连续检测数据式样之间的间隔时间 可视为 0, 而 VFP中的相邻行的检测数据式样则相隔 Hsyc+HBP+HFP的时间。 由 于显示区下侧有较大空间,可使用重复检测数据式样, 作较长时间和细致的检测
[0053] 此外, 在一个具体实施例中, 通过所述信号源发生器与所述显示屏模组之间的 数据线输送所述检测数据式样。
[0054] 此外, 在一个具体实施例中, 所述检测数据式样为施加到所述信号源发生器与 所述显示屏模组之间的数据线的电压式样的组合。
[0055] 此外, 在一个具体实施例中, 施加到数据线的检测数据式样均为低位电压数据 式样、 高位电压数据式样或相邻数据线的检测数据式样电压相反的数据式样。
[0056] 具体的, 此外, 在一个具体实施例中, R0, GO, B0是一行有效显示像素完结后 空白区中的一种检测数据中的头三个检测数据单位, 紧随其后的是数据单位 R1 、 Gl、 B l ; R2、 G2、 B2...Rn、 Gn、 Bn, 视乎所使用检测数据的长度。 由于所 述检测数据式样是经过数据线从信号源传送到显示屏模组, 数据单位在数据线 上的分配取决于所使用的数据线接口类型, 例如上述的 OpenLDI VESA双 8线, 所以数据式样也反映了数据线传送该检测数据时相应的电压高低。 图 4示出了多 个检测数据式样作为例子: 检测数据式样 1 : 全低位 (以全 0表示) , 即以低位 电压施加到所有数据线; 检测数据式样 2: 全高位 (以全 1表示) , 即以高位电 压施加到所有数据线; 检测数据式样 3和 4是在 RGB显示接口界面中所用的例子 : RGB Alt. 1和 RGB Alt. 2, 即相邻的数据线间的电压是相反的, 也就是说数据 线间的高位电压与低位电压交替实施; 检测数据式样 5至 8是在 LVDS显示接口界 面中 VESA格式所应用的检测数据式样。 其中, 在检测数据式样 5和 6中, 相邻的 数据线的电压是相同的, 在检测数据式样 7和 8 , 相邻的数据线的电压是相反的 , 也就是说数据线间的高位电压与低位电压交替实施。 检测数据式样 9至 12是在 OpenLDI显示接口界面中 JEIDA格式所应用的检测数据式样。 其中, 在检测检测 数据式样 9至 10中, 相邻的数据线的电压是相同的 (相同是高 /低位电压) , 在 检测检测数据式样 11至 12中, 相邻的数据线的电压是相反的, 也就是说数据线 间的高位电压与低位电压交替实施。
[0057] 如图 5所示, 为检测数据式样组合的实施例, 所述检测数据式样组合是指随着 时间而改变 /保持某种检测数据式样, 或者交替使用特定多种检测数据式样。 也就是说, 就本发明而言, 数据式样是静态地列出数据位位置 (例如 R0-B7) 中 的数据单位 (高位电压 /低位电压) , 而数据式样组合动态地列出各个数据位 位置中的数据单位随时间的变化。 而两者都是跟运输数据的数据线相关联的。 其中, 数据式样组合 i表示所有数据线在一段时间内全部保持低位电压, 而数据 式样组合 ii表示所有数据线在一段时间内全部保持高位电压。 数据式样组合 iii和 i v, 数据式样组合 v和 vi, 数据式样组合 vii和 viii分别表示在 RGB、 OpenLDI VESA 和 OpenLDI JEIDA的显示接口界面中的数据线随时间在高位电压与低位电压之间 交替。 数据式样组合 k为多样数据式样组合, 例如可以保持电压水平一段时间, 又可在另一段时间施加交替的高位和低位电压, 有助测试出随机干扰, 例如 ESD 、 EMI。 优选地, 这种随机测试适合于检测数据式样加入空白区右侧的情况。 使 用不同数据式样组合测试有助测试出数据线不同的异常问题, 一些异常情况在 一种数据式样组合中来检测不出来但能在另一种数据式样组合中被发现。 [0058] 此外, 在一个具体实施例中, 所述若所述检测数据式样与所述参考数据式样不 一致, 还包括: 记载不一致的所述检测数据式样与所述参考数据式样发生的次 数。
[0059] 此外, 在一个具体实施例中, 所述若所述检测数据式样与所述参考数据式样不 一致, 还包括: 记录出错的数据位位置、 发生错误的数据式样和数据式样放置 位置, 并存储在寄储器中。
[0060] 具体的, 可记载出错的数据位位置 (R0-B7) 、 发生错误的数据式样、 数据式 样放置位置, 将其累加并存储在寄储器中, 并进一步通过有关数据判定问题原 因。 数据位位置可对应于数据线 (运输线) , 根据不同显示介面而有不同, 例 如在 OpenLDI
VESA双 8线中, 第一组数据线传送 GO、 R5、 R4、 R3、 R2、 Rl、 R0, 第二组数 据线传送 B l、 BO、 G5、 G4、 G3、 G2、 G1, 第三组数据线传送 0 (或 DE) 、 0 ( 或 Vsyc) 、 0 (或 Hsyc) 、 B5、 B4、 B3、 B2, 第四组数据线传送 0、 B7、 B6、 G 7、 G6、 R7、 R6。 因此, 当通过检测数据式样知道数据异常时, 可以找出相应 的数据线出问题, 以可以推算该条数据线所输送的显示数据也可能出问题。
[0061] 可见, 所述阈值标准可以只考虑每次加入一种检测数据式样时有无发生不一致 的情况, 然后计算在一段时间中检测有多少个数据式样发生不一致。 例如在一 帧中都在显示区的每一行的右侧加入检测数据, 在三秒中如果累积存在不一致 的检测数据超过一百次, 则超过阈值 (三秒一百次记录事件) 。 所述阈值标准 还可以考虑每个检测数据式样中发生数据单位不一致的情况, 然后计算在一段 时间中所加入的各个数据式样中的全部数据单位发生不一致的次数。 例如, 同 样设置, 计算在三秒中累积存在不一致的数据单位是否超过七百次。
[0062] 如图 6所示, 为本发明实施例提供的一种显示数据缺陷检测装置的结构示意图 , 包括:
[0063] 检测数据式样检测模块 601, 用于获取从信号源发生器传送到显示屏模组的显 示信号中携带的检测数据式样, 并检测所述检测数据式样与预存的参考数据式 样是否一致。
[0064] 显示区像素位置确定模块 602, 用于若所述检测数据式样与所述参考数据式样 不一致, 则根据预存的缺陷检测标准确定所述待检测显示屏显示区中显示信号 的累积显示缺陷。
[0065] 累积显示缺陷确定模块 603 , 用于若所述累积显示缺陷超过预设的显示缺陷阈 值, 则进行显示缺陷告警。
[0066] 此外, 在一个具体实施例中, 所述装置还包括:
[0067] 检测数据式样替换模块, 用于若所述检测数据式样与所述参考数据式样一致, 则获取从信号源发生器传送到显示屏模组的显示信号中携带的另一种检测数据 式样, 将接收的检测数据式样作为新的检测数据式样, 重新执行所述检测所述 检测数据式样与预存的参考数据式样是否一致的步骤。
[0068] 此外, 在一个具体实施例中, 所述检测数据式样替换模块还用于: 经过预设时 间间隔发送输出另一种检测数据式样指令至所述信号源发生器。
[0069] 此外, 在一个具体实施例中, 通过所述信号源发生器与所述显示屏模组之间的 数据线输送所述检测数据式样。
[0070] 此外, 在一个具体实施例中, 所述检测数据式样为施加到所述信号源发生器与 所述显示屏之间的数据线的电压式样的组合。
[0071] 此外, 在一个具体实施例中, 施加到数据线的检测数据式样均为低位电压数据 式样、 高位电压数据式样或相邻数据线的检测数据式样电压相反的数据式样。
[0072] 此外, 在一个具体实施例中, 所述累积显示缺陷确定模块还用于记载不一致的 所述检测数据式样与所述参考数据式样发生的次数。
[0073] 此外, 在一个具体实施例中, 所述累积显示缺陷确定模块还用于记录出错的数 据位位置、 发生错误的数据式样和数据式样放置位置, 并存储在寄储器中。
[0074] 采用上述方案后, 能直接将在显示屏的显示信号空白区输出的检测数据式样与 参考数据式样进行对比, 不用暂停显示区的显示来进行显示缺陷检测, 若对比 得出检测数据式样与参考数据式样不一致, 有助于检测出信号源 (驱动方) 与 显示模组 (接收方) 之间的信号传送有没有出现异常, 确定显示区中的累积显 示缺陷, 并根据累积显示缺陷的具体情况进行告警提醒工作人员显示区存在问 题, 能在不停止显示区显示的情况下实时检测显示数据, 提高了显示数据的稳 定性和准确性, 方便了车载系统用户的使用。 [0075] 应理解, 上述实施例中各步骤的序号的大小并不意味着执行顺序的先后, 各过 程的执行顺序应以其功能和内在逻辑确定, 而不应对本发明实施例的实施过程 构成任何限定。
[0076] 所属领域的技术人员可以清楚地了解到, 为了描述的方便和简洁, 仅以上述各 功能单元、 模块的划分进行举例说明, 实际应用中, 可以根据需要而将上述功 能分配由不同的功能单元、 模块完成, 即将所述装置的内部结构划分成不同的 功能单元或模块, 以完成以上描述的全部或者部分功能。 实施例中的各功能单 元、 模块可以集成在一个处理单元中, 也可以是各个单元单独物理存在, 也可 以两个或两个以上单元集成在一个单元中, 上述集成的单元既可以采用硬件的 形式实现, 也可以采用软件功能单元的形式实现。 另外, 各功能单元、 模块的 具体名称也只是为了便于相互区分, 并不用于限制本申请的保护范围。 上述系 统中单元、 模块的具体工作过程, 可以参考前述方法实施例中的对应过程, 在 此不再赘述。
[0077] 在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中没有详述或 记载的部分, 可以参见其它实施例的相关描述。
[0078] 本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各示例的 单元及算法步骤, 能够以电子硬件、 或者计算机软件和电子硬件的结合来实现 。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方案的特定应用和设 计约束条件。 专业技术人员可以对每个特定的应用来使用不同方法来实现所描 述的功能, 但是这种实现不应认为超出本发明的范围。
[0079] 在本发明所提供的实施例中, 应该理解到, 所揭露的装置和方法, 可以通过其 它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性的, 例如, 所述 模块或单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另外的划分 方式, 例如多个单元或组件可以结合或者可以集成到另一个系统, 或一些特征 可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦合或直接耦合或 通讯连接可以是通过一些接口, 装置或单元的间接耦合或通讯连接, 可以是电 性, 机械或其它的形式。
[0080] 所述作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作为单元 显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可 以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或者全部单元 来实现本实施例方案的目的。
[0081] 另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元中, 也可 以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用软件功能单元的形式 实现。
[0082] 所述集成的模块 /单元如果以软件功能单元的形式实现并作为独立的产品销售 或使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发 明实现上述实施例方法中的全部或部分流程, 也可以通过计算机程序来指令相 关的硬件来完成, 所述的计算机程序可存储于一计算机可读存储介质中, 该计 算机程序在被处理器执行时, 可实现上述各个方法实施例的步骤。 其中, 所述 计算机程序包括计算机程序代码, 所述计算机程序代码可以为源代码形式、 对 象代码形式、 可执行文件或某些中间形式等。 所述计算机可读介质可以包括: 能够携带所述计算机程序代码的任何实体或装置、 记录介质、 U盘、 移动硬盘、 磁碟、 光盘、 计算机存储器、 只读存储器 (ROM, Read-Only Memory) 、 随机 存取存储器 (RAM, Random Access Memory) 、 电载波信号、 电信信号以及软 件分发介质等。 需要说明的是, 所述计算机可读介质包含的内容可以根据司法 管辖区内立法和专利实践的要求进行适当的增减, 例如在某些司法管辖区, 根 据立法和专利实践, 计算机可读介质不包括是电载波信号和电信信号。
[0083] 以上所述实施例仅用以说明本发明的技术方案, 而非对其限制; 尽管参照前述 实施例对本发明进行了详细的说明, 本领域的普通技术人员应当理解: 其依然 可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分技术特征进 行等同替换; 而这些修改或者替换, 并不使相应技术方案的本质脱离本发明各 实施例技术方案的精神和范围, 均应包含在本发明的保护范围之内。

Claims

权利要求书
[权利要求 1] 一种显示数据缺陷检测方法, 其特征在于, 包括:
获取从信号源发生器传送到显示屏模组的显示信号中携带的检测数据 式样, 并检测所述检测数据式样与预存的参考数据式样是否一致; 若所述检测数据式样与所述参考数据式样不一致, 则根据预存的缺陷 检测标准确定所述待检测显示屏显示区中显示信号的累积显示缺陷; 若所述累积显示缺陷超过预设的显示缺陷阈值, 则进行显示缺陷告警
[权利要求 2] 如权利要求 1所述的显示数据缺陷检测方法, 其特征在于, 还包括: 若所述检测数据式样与所述参考数据式样一致, 则获取从信号源发生 器传送到显示屏模组的显示信号中携带的另一种检测数据式样, 将获 取的所述另一种检测数据式样作为新的检测数据式样, 并检测所述新 的检测数据式样与所述预存的参考数据式样是否一致。
[权利要求 3] 如权利要求 2所述的显示数据缺陷检测方法, 其特征在于, 在所述获 取从信号源发生器传送到显示屏模组的显示信号中携带的另一种检测 数据式样之前, 还包括:
经过预设时间间隔发送输出另一种检测数据式样指令至所述信号源发 生器。
[权利要求 4] 如权利要求 1所述的显示数据缺陷检测方法, 其特征在于, 通过所述 信号源发生器与所述显示屏模组之间的数据线输送所述检测数据式样
[权利要求 5] 如权利要求 4所述的显示数据缺陷检测方法, 其特征在于, 所述检测 数据式样为施加到所述信号源发生器与所述显示屏之间的数据线的电 压式样的组合。
[权利要求 6] 如权利要求 5所述的显示数据缺陷检测方法, 其特征在于, 施加到所 述数据线的检测数据式样为以下中的一种: 低位电压数据式样、 高位 电压数据式样, 以及与相邻数据线的检测数据式样电压相反的数据式 样。
[权利要求 7] 如权利要求 1所述的显示数据缺陷检测方法, 其特征在于, 所述若所 述检测数据式样与所述参考数据式样不一致, 还包括: 记载所述检测 数据式样与所述参考数据式样发生不一致的次数。
[权利要求 8] 如权利要求 1所述的显示数据缺陷检测方法, 其特征在于, 所述若所 述检测数据式样与所述参考数据式样不一致, 还包括: 记录发生所述 不一致时的数据位位置、 数据式样和数据式样放置位置, 并存储在寄 储器中。
[权利要求 9] 如权利要求 1所述的显示数据缺陷检测方法, 其特征在于, 在所述显 示信号的空白区中携带所述检测数据式样。
[权利要求 10] 一种显示数据缺陷检测装置, 其特征在于, 包括:
检测数据式样检测模块, 用于获取从信号源发生器传送到显示屏模组 的显示信号中携带的检测数据式样, 并检测所述检测数据式样与预存 的参考数据式样是否一致;
累积显示缺陷确定模块, 用于若所述检测数据式样与所述参考数据式 样不一致, 则根据预存的缺陷检测标准确定所述待检测显示屏显示区 中显示信号的累积显示缺陷;
显示缺陷告警模块, 用于若所述累积显示缺陷超过预设的显示缺陷阈 值, 则进行显示缺陷告警。
[权利要求 11] 根据权利要求 10所述的显示数据缺陷检测装置, 其特征在于, 所述装 置还包括:
检测数据式样替换模块, 用于若所述检测数据式样与所述参考数据式 样一致, 则获取从信号源发生器传送到显示屏模组的显示信号中携带 的另一种检测数据式样, 将获取的所述另一种检测数据式样作为新的 检测数据式样, 并检测所述新的检测数据式样与所述预存的参考数据 式样是否一致。
[权利要求 12] 根据权利要求 11所述的显示数据缺陷检测装置, 其特征在于, 所述检 测数据式样替换模块还用于: 经过预设时间间隔发送输出另一种检测 数据式样指令至所述信号源发生器。
[权利要求 13] 根据权利要求 10所述的显示数据缺陷检测装置, 其特征在于, 所述检 测数据式样为施加到所述信号源发生器与所述显示屏之间的数据线的 电压式样的组合。
[权利要求 14] 根据权利要求 13所述的显示数据缺陷检测装置, 其特征在于, 施加到 所述数据线的检测数据式样为以下中的一种: 低位电压数据式样、 高 位电压数据式样, 以及与相邻数据线的检测数据式样电压相反的数据 式样。
[权利要求 15] 根据权利要求 10所述的显示数据缺陷检测装置, 其特征在于, 所述累 积显示缺陷确定模块还用于记载所述检测数据式样与所述参考数据式 样发生不一致的次数。
[权利要求 16] 根据权利要求 10所述的显示数据缺陷检测装置, 其特征在于, 所述累 积显示缺陷确定模块还用于记录发生所述不一致时的数据位位置、 数 据式样和数据式样放置位置, 并存储在寄储器中。
[权利要求 17] 根据权利要求 10所述的显示数据缺陷检测装置, 其特征在于, 在所述 显示信号的空白区中携带所述检测数据式样。
[权利要求 18] 一种计算机可读存储介质, 所述计算机可读存储介质存储有计算机程 序, 其特征在于, 所述计算机程序被处理器执行时实现如权利要求 1 至 9任一项所述方法的步骤。
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