CN106328030B

Movatterモバイル変換

Info

Publication number: CN106328030B
Application number: CN201510388863.5A
Authority: CN
Inventors: 张劲淳; 陈志豪
Original assignee: Forcelead Technology Corp
Current assignee: Forcelead Technology Corp
Priority date: 2015-07-06
Filing date: 2015-07-06
Publication date: 2020-10-30
Anticipated expiration: 2035-07-06
Also published as: CN106328030A

Abstract

The invention discloses a correction method and a display device, wherein the correction method is used for correcting the display brightness of the display device and comprises the steps of judging whether a display panel of the display device has at least one correction area; and if the display panel is judged to have the at least one correction area, carrying out compensation operation according to the difference value between the display brightness of the at least one correction area and preset brightness to enable the display brightness in the at least one correction area to be consistent with the preset brightness.

Description

Translated fromChinese

校正方法与显示设备Calibration method and display device

技术领域technical field

本发明涉及一种校正方法及显示设备，尤其涉及一种可相应校正与补偿显示设备上一缺陷处的显示亮度的校正方法。The invention relates to a calibration method and a display device, in particular to a calibration method capable of correspondingly correcting and compensating the display brightness at a defect on the display device.

背景技术Background technique

为了便于用户随身携带，移动电子装置的重量与尺寸已成为使用者最重要的考虑，其中窄边框移动电子装置的研发即成为市场上的热门类型，而为了实现窄边框的移动电子装置，将对应采用栅极驱动电路基板技术(Gate or Array，GAO)来驱动显示设备，并将栅极驱动电路设置在显示设备的玻璃基板上，来减少所需设计面积与相关走线的设置。In order to be convenient for users to carry around, the weight and size of mobile electronic devices have become the most important considerations for users. Among them, the research and development of narrow-bezel mobile electronic devices has become a popular type in the market. In order to realize narrow-bezel mobile electronic devices, corresponding A gate driving circuit substrate technology (Gate or Array, GAO) is used to drive the display device, and the gate driving circuit is arranged on the glass substrate of the display device to reduce the required design area and the arrangement of related wirings.

然而，使用非单晶硅制作栅极驱动电路易出现制程稳定性、均匀度或可靠性有问题，而让使用栅极驱动电路基板技术的显示设备常出现某些特定像素单元产生水平线缺陷的问题，并导致相关产品的生产良率下降。为了解决此问题，现有的做法仅能从显示设备的制程、材料、设备或质量管控等方式来下手，以有效维持显示设备的生产良率。一旦显示设备的像素单元出现有水平线缺陷的问题，其可能包含有一些水平线缺陷情况不严重的显示设备，但因为该些显示设备的硬件条件已无法满足客户端的需求，将导致该些显示设备仅能被丢弃而无法为回收再利用，进而造成成本的浪费。However, the use of non-single-crystalline silicon to fabricate gate drive circuits is prone to problems with process stability, uniformity or reliability, and display devices using gate drive circuit substrate technology often have horizontal line defects in some specific pixel units. , and lead to a decline in the production yield of related products. In order to solve this problem, the existing practice can only start from the process, material, equipment or quality control of the display device, so as to effectively maintain the production yield of the display device. Once a pixel unit of a display device has a horizontal line defect problem, it may include some display devices with less serious horizontal line defects, but because the hardware conditions of these display devices can no longer meet the needs of the client, these display devices will only be It can be discarded and cannot be recycled and reused, resulting in a waste of cost.

因此，提供一种可相应校正与补偿显示设备上一缺陷处的显示亮度的校正方法，已成为本领域的重要课题。Therefore, it has become an important subject in the art to provide a correction method that can correspondingly correct and compensate the display brightness of a defect on a display device.

发明内容SUMMARY OF THE INVENTION

因此，本发明的主要目的即在于提供一种可相应校正与补偿显示设备上一缺陷处的显示亮度的校正方法。Therefore, the main purpose of the present invention is to provide a correction method which can correspondingly correct and compensate the display brightness of a defect on a display device.

本发明公开一种校正方法，用来校正一显示设备的一显示亮度，该校正方法包含判断该显示设备的一显示面板上是否有至少一校正区域；以及若判断该显示面板上有该至少一校正区域，根据该至少一校正区域的该显示亮度与一预定亮度间的差值，进行一补偿工作来使该至少一校正区域内的该显示亮度相符于该预定亮度。The invention discloses a calibration method for calibrating a display brightness of a display device. The calibration method comprises determining whether there is at least one calibration area on a display panel of the display device; and if it is determined that there is at least one calibration area on the display panel In the correction area, a compensation operation is performed according to the difference between the display brightness of the at least one correction area and a predetermined brightness to make the display brightness in the at least one correction area match the predetermined brightness.

本发明另公开一种显示设备，包含有一处理器，用来产生一控制信号；一显示面板，耦接该处理器，且包含有多个像素单元；以及一储存装置，耦接该处理器，并储存有一程序代码，该程序代码根据该控制信号来校正该多个像素单元的一显示亮度，该显示方法包含有判断该显示面板上是否有至少一校正区域；以及若判断该显示面板上有该至少一校正区域，根据该至少一校正区域的该多个像素单元的该显示亮度与一预定亮度间的差值，进行一补偿工作来使该显示亮度相符于该预定亮度。The present invention further discloses a display device, comprising a processor for generating a control signal; a display panel coupled to the processor and including a plurality of pixel units; and a storage device coupled to the processor, and stores a program code, the program code corrects a display brightness of the plurality of pixel units according to the control signal, the display method includes judging whether there is at least one correction area on the display panel; The at least one correction area performs a compensation operation according to the difference between the display brightness of the plurality of pixel units in the at least one correction area and a predetermined brightness to make the display brightness match the predetermined brightness.

附图说明Description of drawings

图1为本发明实施例一显示设备的示意图。FIG. 1 is a schematic diagram of a display device according to an embodiment of the present invention.

图2为本发明实施例一校正流程的流程图。FIG. 2 is a flowchart of a calibration process according to an embodiment of the present invention.

图3为本发明实施例中一数字影像工作的示意图。FIG. 3 is a schematic diagram of a digital imaging operation in an embodiment of the present invention.

图4为本发明实施例中另一数字影像工作的示意图。FIG. 4 is a schematic diagram of another digital imaging operation in an embodiment of the present invention.

图5为本发明实施例中一模拟伽马补偿工作的示意图。FIG. 5 is a schematic diagram of an analog gamma compensation operation in an embodiment of the present invention.

图6A～图6C为本发明实施例中一显示画面进行补偿工作的示意图。6A-6C are schematic diagrams of compensation work performed on a display screen according to an embodiment of the present invention.

图7所示本发明实施例中一缺陷显示画面的示意图。FIG. 7 is a schematic diagram of a defect display screen in an embodiment of the present invention.

其中，附图标记说明如下：Among them, the reference numerals are described as follows:

10 显示设备10 Display devices

100 处理器100 processors

102 显示面板102 Display panel

104 储存装置104 Storage device

20 显示流程20 Display process

200、202、204、206 步骤200, 202, 204, 206 steps

70 缺陷显示画面70 Defect display screen

C1、C3、C5、C7 虚线C1, C3, C5, C7 dotted lines

C2、C4、C6、C8 实线C2, C4, C6, C8 solid lines

C9 电压调整曲线C9 Voltage Adjustment Curve

DL1 缺陷区域DL1 defective area

DL2 校正区域DL2 correction area

DL3 正常显示区域DL3 normal display area

具体实施方式Detailed ways

在说明书及后续的申请专利范围当中使用了某些词汇来指称特定的组件。所属领域中具有通常知识者应可理解，制造商可能会用不同的名词来称呼同样的组件。本说明书及后续的申请专利范围并不以名称的差异来作为区别组件的方式，而是以组件在功能上的差异来作为区别的基准。在通篇说明书及后续的权利要求当中所提及的「包含」为一开放式的用语，故应解释成「包含但不限定于」。此外，「耦接」一词在此包含任何直接及间接的电气连接手段。因此，若文中描述一第一装置耦接于一第二装置，则代表该第一装0置可直接连接于该第二装置，或通过其他装置或连接手段间接地连接至该第二装置。Certain terms are used in the specification and subsequent claims to refer to specific components. It should be understood by those of ordinary skill in the art that manufacturers may refer to the same component by different nouns. The scope of this specification and subsequent patent applications does not take the difference in name as a way of distinguishing components, but takes the difference in function of the components as a basis for distinction. The reference to "comprising" throughout the specification and the following claims is an open-ended term, so it should be interpreted as "including but not limited to". Furthermore, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if a first device is described as being coupled to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices or connecting means.

请参考图1，图1为本发明实施例一显示设备10的示意图。如图1所示，本实施例的显示设备10包含有一处理器100、一显示面板102以及一储存装置104。较佳地，本实施例中的处理器100可整合一中央处理器及/或一图像处理器的功能，且耦接有显示面板102以及储存装置104，并传输相关的控制信号与显示数据至显示面板102与储存装置104，以对应提供频率信号与显示信号。显示面板102包含有多个像素单元，且通过处理器100的控制信号，可对应显示或播放一显示数据。储存装置104储存有一程序代码，且程序代码可根据处理器100的控制信号的控制工作，以校正显示面板102上多个像素单元的一显示亮度。据此，当制造商或产品用户发现显示设备10的显示面板102的一或多个像素单元已出现至少一水平线缺陷时，将可利用本实施例所提供的一校正方法来对应修正该至少一水平线缺陷所对应的像素单元的显示亮度，以恢复显示设备10的正常显示工作。Please refer to FIG. 1 , which is a schematic diagram of adisplay device 10 according to an embodiment of the present invention. As shown in FIG. 1 , thedisplay device 10 of this embodiment includes aprocessor 100 , adisplay panel 102 and astorage device 104 . Preferably, theprocessor 100 in this embodiment can integrate the functions of a central processing unit and/or an image processor, and is coupled to thedisplay panel 102 and thestorage device 104, and transmits relevant control signals and display data to thedisplay panel 102. Thedisplay panel 102 and thestorage device 104 provide the frequency signal and the display signal correspondingly. Thedisplay panel 102 includes a plurality of pixel units, and through the control signal of theprocessor 100 , a display data can be displayed or played correspondingly. Thestorage device 104 stores a program code, and the program code can work according to the control signal of theprocessor 100 to correct a display brightness of a plurality of pixel units on thedisplay panel 102 . Accordingly, when the manufacturer or product user finds that at least one horizontal line defect has occurred in one or more pixel units of thedisplay panel 102 of thedisplay device 10, the at least one horizontal line defect can be corrected correspondingly by using a calibration method provided in this embodiment. The display brightness of the pixel unit corresponding to the horizontal line defect is used to restore the normal display operation of thedisplay device 10 .

值得注意地，本实施例并未限制用来承载显示设备10的移动电子产品为何者，也或显示设备10本身可进行独立工作，换言之，根据用户或产品设计者的不同需求，本实施例中的显示设备10可工作为附属装置并整合在一电子产品(例如一手机、一平板装置、一穿戴式电子产品或一笔记型计算器)中，来增加电子产品的应用范围，当然，显示设备10也可独立为电子系统(例如液晶显示器)且耦接一电子运算系统(例如一个人计算器或一多媒体装置)，并在两者相互支持运作时对应提供显示工作者，都属于本发明的范围。It should be noted that this embodiment does not limit the mobile electronic product used to carry thedisplay device 10, or thedisplay device 10 itself can work independently. In other words, according to the different needs of users or product designers, in this embodiment Thedisplay device 10 can work as an accessory device and be integrated into an electronic product (such as a mobile phone, a tablet device, a wearable electronic product or a notebook calculator) to increase the application range of electronic products. Of course, thedisplay device 10 can also be an independent electronic system (such as a liquid crystal display) and be coupled to an electronic computing system (such as a personal calculator or a multimedia device), and provide a corresponding display worker when the two support each other, all belong to the present invention. scope.

进一步，本实施例显示设备10所适用的校正方法可归纳为一校正流程20，且被编译为程序代码而储存于储存装置104中，如图2所示，校正流程20包含以下步骤。Further, the calibration method applicable to thedisplay apparatus 10 of this embodiment can be summarized as acalibration process 20, which is compiled into program codes and stored in thestorage device 104. As shown in FIG. 2, thecalibration process 20 includes the following steps.

步骤200：开始。Step 200: Start.

步骤202：判断显示面板102上是否有至少一校正区域。Step 202 : Determine whether there is at least one calibration area on thedisplay panel 102 .

步骤204：若判断显示面板102上有至少一校正区域，根据校正区域的显示亮度与一预定亮度间的差值，进行一补偿工作来使显示亮度相符于预定亮度。Step 204 : If it is determined that there is at least one calibration area on thedisplay panel 102 , according to the difference between the display brightness of the calibration area and a predetermined brightness, perform a compensation operation to make the display brightness match the predetermined brightness.

步骤206：结束。Step 206: End.

当用户启动显示设备10的显示工作后，可再进行产品良率校验/品管工作，来对应启动校正流程20(即步骤200)。在步骤202中，使用者可通过一目测方式来判断显示面板102上是否有至少一校正区域，即通过目测来检视显示设备10的像素单元是否有水平线缺陷的问题。当然，在另一实施例中，使用者还可利用耦接于显示设备10的一侦测模块来检验或侦测显示设备10的像素单元是否有水平线缺陷的问题。进一步，侦测模块可用来撷取显示面板102上多个像素单元的显示亮度，以取得该些像素单元的实际显示亮度值来供后续工作使用。After the user starts the display work of thedisplay device 10 , the product yield verification/quality control work can be performed again to correspondingly start the calibration process 20 (ie, step 200 ). Instep 202 , the user can visually check whether there is at least one correction area on thedisplay panel 102 , that is, visually check whether the pixel units of thedisplay device 10 have horizontal line defects. Of course, in another embodiment, the user can also use a detection module coupled to thedisplay device 10 to inspect or detect whether the pixel units of thedisplay device 10 have horizontal line defects. Further, the detection module can be used to capture the display brightness of a plurality of pixel units on thedisplay panel 102 to obtain the actual display brightness values of the pixel units for subsequent work.

较佳地，本实施例中的侦测模块可同时参考一最佳样品(Golden Sample)的比较结果，以判断侦测显示设备10的至少一像素单元是否有水平线缺陷的问题。换言之，由于最佳样品(即另一无缺陷的显示设备)所对应的硬设备已为最佳设置与优良制品，即最佳样品的多个像素单元不包含像素单元有水平线缺陷的问题，据此，使用者可将显示设备10与最佳样品同时工作于多个灰阶值，以取得显示设备10的一第一灰阶值分布与最佳样品的一第二灰阶值分布，并由显示设备10的处理器100参考第一灰阶值分布与第二灰阶值分布的差值，以决定显示面板102上是否有至少一校正区域。Preferably, the detection module in this embodiment can simultaneously refer to a comparison result of an optimal sample (Golden Sample) to determine whether there is a horizontal line defect in at least one pixel unit of thedisplay device 10 . In other words, since the hard device corresponding to the best sample (that is, another defect-free display device) has been optimally set and a good product, that is, the multiple pixel units of the best sample do not contain the problem that the pixel unit has horizontal line defects, according to Therefore, the user can operate thedisplay device 10 and the optimal sample at a plurality of grayscale values at the same time to obtain a first grayscale value distribution of thedisplay device 10 and a second grayscale value distribution of the optimal sample. Theprocessor 100 of thedisplay device 10 refers to the difference between the first grayscale value distribution and the second grayscale value distribution to determine whether there is at least one correction area on thedisplay panel 102 .

进一步，当处理器100判断第一灰阶值分布与第二灰阶值分布的差值超过一预定数值时，将对应判断显示设备10包含有至少一校正区域(即显示设备10的至少一像素单元有水平线缺陷的问题)。在此情况下，本实施例的校正流程20还可对至少一校正区域中一个或多个像素单元进行一定位工作与一分类工作，以决定校正区域中有水平线缺陷的一个或多个像素单元其实际缺陷的轻重程度与相关数据。较佳地，本实施例中的定位工作可判断至少一校正区域是位在显示面板102的一绝对位置，而分类工作可判断至少一校正区域中一个或多个像素单元是为一丛聚模式或一分散模式，即分类工作将进一步决定该些像素单元是否为零散分布或群聚分布。据此，处理器100再对应收集至少一校正区域中有水平线缺陷的一个或多个像素单元所对应的绝对位置与分类数据(即判断该些像素单元为丛聚模式或分散模式)，以供后续工作使用。Further, when theprocessor 100 determines that the difference between the first grayscale value distribution and the second grayscale value distribution exceeds a predetermined value, it will correspondingly determine that thedisplay device 10 includes at least one correction area (that is, at least one pixel of the display device 10 ). cells have problems with horizontal line defects). In this case, thecalibration process 20 of this embodiment can also perform a positioning work and a classification work on one or more pixel units in at least one calibration area, so as to determine one or more pixel units with horizontal line defects in the calibration area The severity of its actual defects and related data. Preferably, the positioning work in this embodiment can determine that the at least one correction area is located at an absolute position of thedisplay panel 102, and the classification work can determine that one or more pixel units in the at least one correction area are in a cluster mode. Or a scatter mode, ie the classification work will further determine whether the pixel units are distributed in discrete or clustered distribution. Accordingly, theprocessor 100 correspondingly collects the absolute position and classification data corresponding to one or more pixel units with horizontal line defects in at least one correction area (ie, judging that these pixel units are in the cluster mode or the scattered mode) for the purpose of Use in subsequent work.

在步骤204中，若处理器100已判断显示面板102上有至少一校正区域，处理器100将比较校正区域上像素单元的显示亮度与预定亮度间的差值，以进行一补偿工作来使显示亮度相符于预定亮度。较佳地，本实施例中的处理器100先在步骤202中收集有水平线缺陷的一个或多个像素单元的绝对位置与分类数据(即判断该些像素单元为丛聚模式或分散模式)，再比较有水平线缺陷的一个或多个像素单元的显示亮度与预定亮度间的数值差异，以对应决定处理器100将采用何种方式来进行显示面板102的补偿工作，并让有水平线缺陷的一个或多个像素单元的显示亮度可恢复至理想的预定亮度，进而相应地优化显示设备10的显示工作且对应提高产品的回收再利用率。Instep 204, if theprocessor 100 has determined that there is at least one correction area on thedisplay panel 102, theprocessor 100 compares the difference between the display brightness of the pixel units in the correction area and the predetermined brightness, and performs a compensation work to make the display The brightness corresponds to the predetermined brightness. Preferably, theprocessor 100 in this embodiment first collects the absolute position and classification data of one or more pixel units with horizontal line defects in step 202 (ie, determines that these pixel units are in the cluster mode or the scattered mode), Then compare the numerical difference between the display brightness of one or more pixel units with horizontal line defects and the predetermined brightness, so as to correspondingly determine which method theprocessor 100 will use to perform the compensation work of thedisplay panel 102, and let one of the horizontal line defects The display brightness of one or more pixel units can be restored to an ideal predetermined brightness, thereby optimizing the display work of thedisplay device 10 accordingly and correspondingly improving the recycling rate of products.

详细来说，本实施例中的补偿方式包含有进行一数字影像工作，而数字影像工作包含有在至少一校正区域上取得一个或多个像素单元相对于不同灰阶值的一映像曲线，或针对不同色域空间进行一亮度补偿工作或一颜色补偿工作，使得处理器100可执行数字影像工作来让至少一校正区域内的显示亮度相符于预定亮度。请参考图3，图3为本发明实施例中一数字影像工作的示意图。如图3所示，其左图已绘出一实线C2来表示工作在不同灰阶值下正常多个像素单元所对应的一理想穿透率，而一虚线C1可表示工作在不同灰阶值下校正区域中某一像素单元所对应的一实际穿透率。据此，根据两者的比较结果，即可对应得知校正区域中有水平线缺线的该特定像素单元的穿透率将高于正常工作像素单元的穿透率，使得校正区域中该特定像素单元所产生的显示亮度是大于正常工作像素单元的预定亮度。在此情况下，本实施例将可对应进行数字影像工作来将原始灰阶值(即图3右图一实线C4)映像到校正灰阶值(即图3图另一虚线C3)，使调整后所欲输出的校正灰阶值将低于原始灰阶值，以让校正区域内修正后的一个或多个像素单元可对应显示正常的预定亮度。Specifically, the compensation method in this embodiment includes performing a digital image operation, and the digital image operation includes obtaining a mapping curve of one or more pixel units with respect to different grayscale values in at least one correction area, or A luminance compensation work or a color compensation work is performed for different color gamut spaces, so that theprocessor 100 can perform a digital image work to make the display luminance in at least one correction area match the predetermined luminance. Please refer to FIG. 3 . FIG. 3 is a schematic diagram of a digital image operation according to an embodiment of the present invention. As shown in FIG. 3 , a solid line C2 has been drawn in the left figure to represent an ideal transmittance corresponding to a plurality of normal pixel units operating under different grayscale values, and a dotted line C1 can represent operating in different grayscales. An actual transmittance corresponding to a certain pixel unit in the correction area under the value. Accordingly, according to the comparison result of the two, it can be correspondingly known that the transmittance of the specific pixel unit in the correction area with the missing horizontal line will be higher than that of the normal working pixel unit, so that the specific pixel unit in the correction area will have a transmittance higher than that of the normal working pixel unit. The display brightness produced by the cell is greater than the predetermined brightness of the normal operating pixel cell. In this case, the present embodiment can correspond to digital image work to map the original grayscale value (ie, the solid line C4 in the right figure in FIG. 3 ) to the corrected grayscale value (ie, the other dashed line C3 in FIG. 3 ), so that The corrected grayscale value to be output after adjustment will be lower than the original grayscale value, so that the corrected one or more pixel units in the correction area can correspondingly display normal predetermined brightness.

请参考图4，图4为本发明实施例中另一数字影像工作的示意图。如图4所示，若多个灰阶值可对应一数值范围从0到255，本实施利还可再简化修改图3实施例的工作方式，即每16个灰阶值才对应量测一个灰阶值所对应的穿透率(如图4中左图所绘一虚线C5上的多个量测点)，以相应降低校正方法所需的执行成本，而其他未量测灰阶值所对应的穿透率则可通过内差方式来取得，据此，即可取得图4左图所绘的完整虚线C5，至于图4左图所绘另一实线C6则为不同灰阶值下正常多个像素单元所对应的理想穿透率。在此情况下，根据虚线C5与实线C6的比较结果，即可对应取得图4有水平线缺线的特定像素单元的穿透率是高于正常工作像素单元的穿透率为1.5倍，据此，本实施例所进行的数字影像工作是可将原始灰阶值(即图4右图一实线C8)映像到校正灰阶值(即图4右图另一虚线C7)，使调整后所欲输出的校正灰阶值将低于原始灰阶值，以让校正区域内修正后的一个或多个像素单元可对应显示正常的预定亮度。Please refer to FIG. 4 . FIG. 4 is a schematic diagram of another digital imaging operation according to an embodiment of the present invention. As shown in FIG. 4 , if a plurality of gray-scale values can correspond to a value range from 0 to 255, this implementation can further simplify and modify the working mode of the embodiment in FIG. 3 , that is, only one measurement corresponds to every 16 gray-scale values. The transmittance corresponding to the gray-scale value (a plurality of measurement points on the dotted line C5 as shown in the left figure in Fig. 4 ) can correspondingly reduce the execution cost required by the calibration method, while the other unmeasured gray-scale values The corresponding transmittance can be obtained by the method of inner difference. According to this, the complete dotted line C5 drawn in the left picture of Fig. 4 can be obtained, and the other solid line C6 drawn in the left picture of Fig. 4 is under different grayscale values. The ideal transmittance corresponding to normal multiple pixel units. In this case, according to the comparison result between the dotted line C5 and the solid line C6, it can be correspondingly obtained that the transmittance of the specific pixel unit with the missing horizontal line in FIG. 4 is 1.5 times higher than that of the normal working pixel unit. Therefore, the digital image work performed in this embodiment can map the original grayscale value (ie, a solid line C8 in the right figure of FIG. 4 ) to a corrected grayscale value (ie, another dotted line C7 in the right figure of FIG. 4 ), so that the adjusted The corrected grayscale value to be output will be lower than the original grayscale value, so that the corrected one or more pixel units in the correction area can correspondingly display normal predetermined brightness.

当然，在其他实施例中，若显示设备10被检验还包含有其他需进行校正/补偿的多个校正区域，而每一校正区域还包含多个像素单元已被判定具有水平线缺线的问题，同时该些像素单元的水平线缺线的轻重程度也不相同时，本实施例处理器100还可进一步参考且判断该些多个像素单元所对应的绝对位置与分类数据，以分别将不同校正/补偿方式的数字影像工作应用在该些像素单元，来对应进行不同缺陷程度的灰阶值映像工作者，也属于本发明的范围，至于详细内容可参考后续段落。Of course, in other embodiments, if thedisplay device 10 is checked to include other multiple correction areas that need to be corrected/compensated, and each correction area also includes multiple pixel units that have been determined to have the problem of missing horizontal lines, At the same time, when the severity of the missing horizontal lines of the pixel units is not the same, theprocessor 100 of this embodiment may further refer to and determine the absolute position and classification data corresponding to the plurality of pixel units, so as to correct the different correction/ It is also within the scope of the present invention that the compensation-based digital image work is applied to these pixel units to perform grayscale image work with different defect degrees. For details, please refer to the following paragraphs.

在另一实施例中，处理器100所进行的数字图像处理方式也可根据不同色域空间来进行亮度补偿工作或颜色补偿工作，例如可对于RGB色域空间来进行校正与补偿工作，也可以于HSV、YCbCr或其他色域空间来进行校正与补偿工作。此外，本实施例也未限制校正与补偿工作的执行细节，例如可以选择以上色域空间内的各颜色亮度来进行校正与补偿工作，或者仅针对色域空间HSV中特定参数如亮度参数V来进行校正与补偿工作，也可针对色域空间YCbCr中的特定参数如亮度参数Y来进行校正与补偿工作。当然，其他实施例也可以选择针对特定色域空间的其他参数来进行校正与补偿工作，非用以限制本发明的范围。再者，由于人眼的视觉感知是参考几合空间内多个成像参数的平均数值，假若校正区域内有水平线缺陷的多个像素单元所对应的设置距离过于接近，且导致人眼的视觉感知产生不连续性时，在此情况下，本实施例所进行的校正与补偿工作也可相应地调整该些像素单元所对应的映像曲线，以对应进行另一曲线的内插/补偿工作，此也属于本发明的范围。In another embodiment, the digital image processing method performed by theprocessor 100 can also perform brightness compensation work or color compensation work according to different color gamut spaces. For example, it can perform correction and compensation work for RGB color gamut spaces, or Correction and compensation work in HSV, YCbCr or other color gamut spaces. In addition, this embodiment does not limit the execution details of the correction and compensation work. For example, the brightness of each color in the above color gamut space can be selected to perform the correction and compensation work, or only specific parameters in the color gamut space HSV, such as the brightness parameter V, can be selected. Correction and compensation work can also be performed for specific parameters in the color gamut space YCbCr, such as the luminance parameter Y, for correction and compensation work. Of course, in other embodiments, other parameters for a specific color gamut space may also be selected to perform correction and compensation work, which is not intended to limit the scope of the present invention. Furthermore, since the visual perception of the human eye is based on the average value of multiple imaging parameters in the combination space, if the setting distances corresponding to multiple pixel units with horizontal line defects in the correction area are too close, the visual perception of the human eye will be caused. When discontinuity occurs, in this case, the correction and compensation work performed in this embodiment can also adjust the mapping curves corresponding to these pixel units accordingly, so as to perform interpolation/compensation work for another curve correspondingly. It also belongs to the scope of the present invention.

除此之外，本实施例中的补偿方式还包含有进行一模拟伽马(Gamma)补偿工作，以取得至少一校正区域上一特定灰阶值的一伽马设定曲线，且利用模拟伽马补偿工作来使至少一校正区域内一个或多个像素单元的显示亮度相符于预定亮度。请参考图5，图5为本发明实施例中一模拟伽马补偿工作的示意图。如图5所示，本实施例的左图绘出类似图4左图的虚线C5(即需进行校正与补偿工作的某一像素单元的穿透率曲线)与实线C6(即理想像素单元的穿透率曲线)，即有水平线缺线的特定像素单元的穿透率是高于正常工作像素单元的穿透率为1.5倍。据此，本实施例所提供的模拟伽马补偿工作将参考图5右图所绘的一电压调整曲线C9，以将有水平线缺线的特定像素单元的电压值进行相应调整，进而让校正区域内有水平线缺陷的该特定像素单元的显示亮度可调整至预定亮度。In addition, the compensation method in this embodiment also includes performing an analog gamma (Gamma) compensation work to obtain a gamma setting curve of a specific grayscale value in at least one correction area, and using the analog gamma The compensation works to make the display brightness of one or more pixel units in at least one correction area conform to a predetermined brightness. Please refer to FIG. 5 , which is a schematic diagram of an analog gamma compensation operation in an embodiment of the present invention. As shown in FIG. 5 , the left diagram of this embodiment draws a dotted line C5 (ie, the transmittance curve of a pixel unit that needs to be corrected and compensated) and a solid line C6 (ie, an ideal pixel unit) similar to the left diagram of FIG. 4 . The transmittance curve), that is, the transmittance of a specific pixel unit with a missing horizontal line is 1.5 times higher than that of a normal working pixel unit. Accordingly, the analog gamma compensation work provided by this embodiment will refer to a voltage adjustment curve C9 drawn in the right figure of FIG. 5 to adjust the voltage value of a specific pixel unit with a missing horizontal line, so as to allow the correction area to be adjusted accordingly. The display brightness of the specific pixel unit with the horizontal line defect can be adjusted to a predetermined brightness.

请参考图6A～图6C，图6A～图6C为本发明实施例中一显示画面进行补偿工作的示意图。在本实施例中。图6A为一显示画面的中央处产生一缺陷区域DL1，即对于一NormallyWhite的显示面板来说，缺陷区域DL1是代表该些像素单元为充电不足，相对地，假设对应于一Normally Black的显示面板来说，缺陷区域DL1是代表该些像素单元为过度充电(或者也可表示显示面板上其他位置的像素单元为充电不足)。在此情况下，由于有水平线缺陷的像素单元所显示的显示亮度已高于预定亮度，据此，本实施例将可相应通过上述多种校正与补偿工作，而预先将有水平线缺线的像素单元的灰阶值相应调降(如图6B所示)为一校正区域DL2，进而得到校正与补偿工作后的显示画面(如图6C所示)，即该显示画面将包含一正常显示区域DL3，即恢复显示面板102上该些校正区域内一个或多个像素单元的显示亮度为预定亮度。Please refer to FIGS. 6A to 6C . FIGS. 6A to 6C are schematic diagrams of compensation work performed on a display screen according to an embodiment of the present invention. In this example. FIG. 6A shows a defective area DL1 generated in the center of a display screen, that is, for a Normally White display panel, the defective area DL1 represents that the pixel units are insufficiently charged. On the contrary, it is assumed that the display panel corresponds to a Normally Black In other words, the defective area DL1 represents that the pixel units are overcharged (or may also indicate that the pixel units at other positions on the display panel are undercharged). In this case, since the display brightness displayed by the pixel unit with the horizontal line defect has been higher than the predetermined brightness, according to this, this embodiment can correspondingly pass the above-mentioned various correction and compensation work, and pre-define the pixel with the missing horizontal line The grayscale value of the unit is correspondingly lowered (as shown in FIG. 6B ) as a correction area DL2, and then a display image after correction and compensation work (as shown in FIG. 6C ) is obtained, that is, the display image will include a normal display area DL3 , that is, the display brightness of one or more pixel units in the correction regions on thedisplay panel 102 is restored to the predetermined brightness.

值得注意地，在其他实施例中，若该些水平线缺陷的像素单元为丛聚模式，且该些像素单元的显示亮度均偏离预定亮度为一固定值时，本实施例的校正与补偿工作将判断其仅包含有一单一缺陷对象，进一步，将对应参考该缺陷对象的一坐标范围，以进行相对应的校正与补偿工作；若该些水平线缺陷的像素单元为分散模式，即判断包含有多个缺陷对象存在时，本实施例也可参考已记录的该些缺陷对象的坐标范围以及该些缺陷对象所包含的缺陷程度，以对应进行该些缺陷对象的校正与补偿工作。请参考图7，图7为本发明实施例中一缺陷显示画面70的示意图，其中缺陷显示画面70包含有多个校正区域且各自对应为不同的缺陷程度。如图7所示，由于缺陷显示画面70已包含多个对应为不同缺陷程度的校正区域，本实施例中的处理器100将对应判断且纪录缺陷显示画面70中多个缺陷对象的相关数据为下表1，以清楚说明该些缺陷对象所对应的坐标范围与缺陷程度，同时，处理器100还可进一步比较不同缺陷程度的像素单元的显示亮度与预定亮度间的差值，以对应判断该些缺陷对象的像素单元所需进行的校正与补偿工作，即对应为不同的方法1～方法3，至于方法1～方法3的详细工作方式，例如可分别为调整不同灰阶值的映像曲线、针对不同色域空间进行亮度补偿工作或进行模拟伽马补偿工作等，然其内容非用以限制本发明的范围。换言之，本实施例可同时针对多个缺陷对象来进行不同类别的校正与补偿工作，以缩短校正流程所需的运行时间与效率，进而配合不同显示设备的设计与应用。It should be noted that, in other embodiments, if the pixel units with horizontal line defects are in the cluster mode, and the display brightness of these pixel units deviates from the predetermined brightness by a fixed value, the correction and compensation work of this embodiment will be It is judged that it only contains a single defect object, and further, a coordinate range of the defect object is correspondingly referenced to perform corresponding correction and compensation work; if the pixel units of these horizontal line defects are in the scattered mode, it is judged that there are multiple When defective objects exist, the present embodiment can also refer to the recorded coordinate ranges of the defective objects and the degree of defects included in the defective objects, so as to perform the corresponding correction and compensation work for the defective objects. Please refer to FIG. 7 . FIG. 7 is a schematic diagram of adefect display screen 70 according to an embodiment of the present invention, wherein thedefect display screen 70 includes a plurality of correction areas and each corresponds to a different degree of defect. As shown in FIG. 7 , since thedefect display screen 70 already includes a plurality of correction areas corresponding to different degrees of defects, theprocessor 100 in this embodiment will correspondingly determine and record the relevant data of the plurality of defective objects in thedefect display screen 70 as: The following table 1 is used to clearly describe the coordinate ranges and defect degrees corresponding to these defective objects. At the same time, theprocessor 100 can further compare the difference between the display brightness and the predetermined brightness of the pixel units with different defect degrees, so as to determine the corresponding The correction and compensation work required for the pixel units of some defective objects corresponds to different methods 1 to 3. As for the detailed working methods of methods 1 to 3, for example, the mapping curves of different grayscale values can be adjusted, respectively. The brightness compensation work or the analog gamma compensation work is performed for different color gamut spaces, but the contents thereof are not intended to limit the scope of the present invention. In other words, the present embodiment can perform different types of correction and compensation work for multiple defective objects at the same time, so as to shorten the running time and efficiency required by the correction process, and further suit the design and application of different display devices.

表1Table 1

简言之，本实施例中用于显示设备10的校正方法，可通过侦测模块与目测方式，对应判断显示设备10是否存在需要进行显示亮度的校正与补偿工作的校正区域。若有校正区域存在时，本实施例可相应判断该些校正区域中的一或多个像素单元的缺陷程度、绝对位置与分类数据，以对应进行各类型的数字影像工作及/或模拟伽马补偿工作，直到校正区域内有水平线缺陷的一或多个像素单元的显示亮度恢复为预定亮度且让显示设备10得进行正常的显示工作。当然，本实施例中用于显示设备10的校正方法，也可利用一软件、韧体或硬件等方式来独立呈现，且对应结合其他的电子硬件产品或显示软件工作等，非用以限制本发明的范围。另外，本领域技术人员还可相应地在校正工作进行中，对应加入其他类型的光学影像调整参数或视觉模型调整参数等，来提升显示设备10工作在不同视觉环境的显示性能或应用范围等，也属于本发明的范围。In short, in the calibration method for thedisplay device 10 in this embodiment, the detection module and the visual inspection method can be used to determine whether thedisplay device 10 has a calibration area that needs to perform the calibration and compensation of the display brightness. If there are correction areas, this embodiment can correspondingly determine the defect degree, absolute position and classification data of one or more pixel units in these correction areas, so as to perform various types of digital image work and/or analog gamma correspondingly Compensation is performed until the display brightness of one or more pixel units with horizontal line defects in the correction area is restored to the predetermined brightness and thedisplay device 10 can perform normal display work. Of course, the calibration method used for thedisplay device 10 in this embodiment can also be independently presented by means of software, firmware, or hardware, and works in combination with other electronic hardware products or display software, etc., and is not intended to limit the present invention. scope of invention. In addition, those skilled in the art can also correspondingly add other types of optical image adjustment parameters or visual model adjustment parameters during the calibration work to improve the display performance or application range of thedisplay device 10 in different visual environments. It also belongs to the scope of the present invention.

综上所述，本发明实施例提供一种显示设备与校正方法，可针对已出现有水平线缺陷的像素单元来进行校正与补偿工作，以相应调整有水平线缺陷的像素单元的显示亮度。据此，本实施例可通过回收该些水平线缺陷情况不严重的显示设备来降低生产成本，另一方面，本实施例还可提高承载显示设备的电子产品的使用寿命，以对应提高该些电子产品的应用范围与硬件扩充性。To sum up, the embodiments of the present invention provide a display device and a calibration method, which can perform calibration and compensation work for pixel units with horizontal line defects, so as to adjust the display brightness of the pixel units with horizontal line defects accordingly. Accordingly, the present embodiment can reduce the production cost by recycling the display devices with less serious horizontal line defects. On the other hand, the present embodiment can also increase the service life of the electronic product carrying the display device, so as to correspondingly increase the electronic product. Product application range and hardware expandability.

以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.