CN109686307B - Gamma reference voltage generation method and device, display panel and display device - Google Patents
Gamma reference voltage generation method and device, display panel and display device Download PDFInfo
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Abstract
本发明实施例提供一种伽马基准电压的生成方法及装置、显示面板、显示装置,涉及显示技术领域;能够在不增加Gamma tuning时间,解决显示装置在不同刷新频率下出现显示偏差的弊端;该生成方法包括:获取待调节显示面板在第一刷新频率下的第一伽马基准电压组;第一伽马基准电压组包括:与多个特定灰阶一一对应的第一伽马基准电压;获取待调节显示面板在第二刷新频率下的伽马基准电压调节量组;根据第一伽马基准电压组和伽马基准电压调节量组,生成在第二刷新频率下的第二伽马基准电压组;伽马基准电压调节量组包括:与多个特定灰阶一一对应的伽马基准电压调节量;第二伽马基准电压组包括:与多个特定灰阶一一对应的第二伽马基准电压。
Embodiments of the present invention provide a method and a device for generating a gamma reference voltage, a display panel, and a display device, which relate to the field of display technology; can solve the drawback of display deviation in display devices under different refresh frequencies without increasing the Gamma tuning time; The generating method includes: acquiring a first gamma reference voltage group at a first refresh frequency of a display panel to be adjusted; the first gamma reference voltage group includes: first gamma reference voltages corresponding to a plurality of specific gray levels one-to-one Obtain the gamma reference voltage adjustment amount group of the display panel to be adjusted under the second refresh frequency; generate the second gamma reference voltage under the second refresh frequency according to the first gamma reference voltage group and the gamma reference voltage adjustment amount group a reference voltage group; the gamma reference voltage adjustment amount group includes: a gamma reference voltage adjustment amount corresponding to a plurality of specific gray scales one-to-one; the second gamma reference voltage group includes: a one-to-one corresponding to a plurality of specific gray scales Two gamma reference voltages.
Description
技术领域technical field
本发明涉及显示技术领域,尤其涉及一种伽马基准电压的生成方法及装置、显示面板、显示装置。The present invention relates to the field of display technology, and in particular, to a method and device for generating a gamma reference voltage, a display panel, and a display device.
背景技术Background technique
AMOLED(Active-matrix OLED,中文全称:主动矩阵有机发光二极体)因驱动电压低,发光组件寿命长等优点,已被广泛地应用于包括电脑、手机等电子产品在内的各种电子设备中。AMOLED (Active-matrix OLED, full Chinese name: Active Matrix Organic Light Emitting Diode) has been widely used in various electronic devices including computers, mobile phones and other electronic products due to its low driving voltage and long life of light-emitting components. middle.
然而,在AMOLED显示领域,如果针对不同刷新频率,采用同一组Gamma(伽马)基准电压进行显示时,由于像素电路中薄膜晶体管(Thin Film Transistor,TFT)的漏电,会导致不同刷新频率下的显示亮度以及色度具有一定的偏差,例如,一般在高刷新频率下,显示亮度偏高;如果针对不同刷新频率分别通过伽马调节(Gamma tuning、Auto Gamma)得到多组Gamma基准电压,则会导致伽马调节的时间成倍增加,从而很难满足产线的节拍时间(tact time),进而导致生产率下降。However, in the field of AMOLED display, if the same set of Gamma reference voltages is used for display for different refresh frequencies, due to the leakage of the thin film transistor (TFT) in the pixel circuit, it will lead to different refresh frequencies. The display brightness and chromaticity have a certain deviation. For example, generally at a high refresh frequency, the display brightness is high; if multiple sets of Gamma reference voltages are obtained through Gamma tuning and Auto Gamma for different refresh frequencies, the The resulting time for gamma adjustment is multiplied, making it difficult to meet the tact time of the production line, resulting in reduced productivity.
发明内容SUMMARY OF THE INVENTION
本发明的实施例提供一种伽马基准电压的生成方法及装置、显示面板、显示装置,能够在不增加伽马调节时间的基础上,解决显示装置在不同刷新频率下出现显示偏差的弊端。Embodiments of the present invention provide a method and device for generating a gamma reference voltage, a display panel, and a display device, which can solve the problem of display deviation in a display device under different refresh frequencies without increasing the gamma adjustment time.
为达到上述目的,本发明的实施例采用如下技术方案:To achieve the above object, the embodiments of the present invention adopt the following technical solutions:
本发明实施例提供一种伽马基准电压的生成方法,包括:获取待调节显示面板在第一刷新频率下的第一伽马基准电压组;其中,所述第一伽马基准电压组包括:与多个特定灰阶一一对应的第一伽马基准电压;获取所述待调节显示面板在第二刷新频率下的伽马基准电压调节量组;所述伽马基准电压调节量组包括:与所述多个特定灰阶一一对应的伽马基准电压调节量;所述第二刷新频率与所述第一刷新频率不同;根据所述第一伽马基准电压组和所述伽马基准电压调节量组,生成所述待调节显示面板在所述第二刷新频率下的第二伽马基准电压组;所述第二伽马基准电压组包括:与所述多个特定灰阶一一对应的第二伽马基准电压。An embodiment of the present invention provides a method for generating a gamma reference voltage, including: acquiring a first gamma reference voltage group at a first refresh frequency of a display panel to be adjusted; wherein the first gamma reference voltage group includes: a first gamma reference voltage corresponding to a plurality of specific grayscales one-to-one; acquiring a gamma reference voltage adjustment amount group of the display panel to be adjusted at a second refresh frequency; the gamma reference voltage adjustment amount group includes: a gamma reference voltage adjustment amount corresponding to the plurality of specific gray levels; the second refresh frequency is different from the first refresh frequency; according to the first gamma reference voltage group and the gamma reference A voltage adjustment amount group, generating a second gamma reference voltage group of the display panel to be adjusted at the second refresh frequency; the second gamma reference voltage group includes: one with the plurality of specific grayscales the corresponding second gamma reference voltage.
在一些实施例中,所述根据所述第一伽马基准电压组和所述伽马基准电压调节量组,生成所述待调节显示面板在所述第二刷新频率下的第二伽马基准电压组包括:根据相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量,生成所述特定灰阶下的第二伽马基准电压,以形成所述第二刷新频率下的第二伽马基准电压组。In some embodiments, generating a second gamma reference of the display panel to be adjusted at the second refresh frequency according to the first gamma reference voltage group and the gamma reference voltage adjustment amount group The voltage group includes: generating a second gamma reference voltage in the specific gray scale according to the first gamma reference voltage and the adjustment amount of the gamma reference voltage in the same specific gray scale, so as to form the second gamma reference voltage in the second refresh frequency. The second gamma reference voltage group.
在一些实施例中,所述获取所述待调节显示面板在第二刷新频率下的伽马基准电压调节量组包括:获取多个样品显示面板在所述第一刷新频率和所述第二刷新频率下的参考伽马基准电压组;其中,所述参考伽马基准电压组包括:与所述多个特定灰阶一一对应的参考伽马基准电压;根据所述多个样品显示面板中每一样品显示面板,在所述第一刷新频率下的参考伽马基准电压组和所述第二刷新频率下的参考伽马基准电压组中,相同的特定灰阶下的参考伽马基准电压,获取所述样品显示面板在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压变化量;根据在所述第二刷新频率下,所述多个样品显示面板对应的相同的特定灰阶下的多个伽马基准电压变化量,获取在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压调节量,以形成所述第二刷新频率下的伽马基准电压调节量组。In some embodiments, the acquiring a gamma reference voltage adjustment amount group of the display panel to be adjusted at the second refresh frequency includes: acquiring a plurality of sample display panels at the first refresh frequency and the second refresh frequency A reference gamma reference voltage group at a frequency; wherein, the reference gamma reference voltage group includes: reference gamma reference voltages corresponding to the plurality of specific gray scales one-to-one; In a sample display panel, in the reference gamma reference voltage group at the first refresh frequency and the reference gamma reference voltage group at the second refresh frequency, the reference gamma reference voltages at the same specific gray scale, Obtaining the variation of the gamma reference voltage of the sample display panel corresponding to the specific gray scale under the second refresh frequency; a plurality of gamma reference voltage variations under a specific grayscale, and obtain the gamma reference voltage adjustment amount corresponding to the specific grayscale under the second refresh frequency to form a gamma at the second refresh frequency Reference voltage adjustment group.
在一些实施例中,所述根据所述多个样品显示面板中每一样品显示面板,在所述第一刷新频率下的参考伽马基准电压组和所述第二刷新频率下的参考伽马基准电压组中,相同的特定灰阶下的参考伽马基准电压,获取所述样品显示面板在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压变化量包括:将所述多个样品显示面板中每一样品显示面板,在所述第二刷新频率下的参考伽马基准电压组和所述第一刷新频率下的参考伽马基准电压组中,对应相同的特定灰阶下的参考伽马基准电压的差值,作为所述样品显示面板在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压变化量。In some embodiments, the reference gamma reference voltage set at the first refresh frequency and the reference gamma at the second refresh frequency according to each sample display panel of the plurality of sample display panels In the reference voltage group, the reference gamma reference voltage under the same specific grayscale, and obtaining the variation of the gamma reference voltage corresponding to the specific grayscale of the sample display panel at the second refresh frequency includes: Each sample display panel in the plurality of sample display panels corresponds to the same specific grayscale in the reference gamma reference voltage group at the second refresh frequency and the reference gamma reference voltage group at the first refresh frequency The difference between the reference gamma reference voltages under the gray scale is used as the variation of the gamma reference voltage corresponding to the specific gray scale of the sample display panel under the second refresh frequency.
在一些实施例中,所述根据在所述第二刷新频率下,所述多个样品显示面板对应的相同的特定灰阶下的多个伽马基准电压变化量,获取在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压调节量包括:将在所述第二刷新频率下,所述多个样品显示面板对应的多个伽马基准电压变化量组中,对应相同的特定灰阶下的伽马基准电压变化量的平均值,作为所述待调节显示面板在所述第二刷新频率下、对应所述特定灰阶下的伽马基准电压调节量。In some embodiments, the second refresh rate is obtained according to the variation of a plurality of gamma reference voltages under the same specific gray scale corresponding to the plurality of sample display panels at the second refresh frequency. The adjustment amount of the gamma reference voltage corresponding to the specific gray scale at the frequency includes: at the second refresh frequency, among the plurality of gamma reference voltage variation groups corresponding to the plurality of sample display panels, corresponding to the same The average value of the variation of the gamma reference voltage under the specific grayscale is taken as the adjustment amount of the gamma reference voltage corresponding to the specific grayscale under the second refresh frequency of the display panel to be adjusted.
在一些实施例中,所述根据所述第一伽马基准电压组和所述伽马基准电压调节量组,生成所述待调节显示面板在所述第二刷新频率下的第二伽马基准电压组包括:将相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量之和,作为所述特定灰阶下的第二伽马基准电压,以形成所述第二刷新频率下的第二伽马基准电压组。In some embodiments, generating a second gamma reference of the display panel to be adjusted at the second refresh frequency according to the first gamma reference voltage group and the gamma reference voltage adjustment amount group The voltage group includes: taking the sum of the first gamma reference voltage and the adjustment amount of the gamma reference voltage under the same specific gray scale as the second gamma reference voltage under the specific gray scale, so as to form the second refresh frequency under the second gamma reference voltage group.
本发明实施例还提供一种伽马基准电压的生成装置,包括:伽马基准电压获取单元,用于获取待调节显示面板在第一刷新频率下的第一伽马基准电压组;其中,所述第一伽马基准电压组包括:与多个特定灰阶一一对应的第一伽马基准电压;参考调节量获取单元,用于获取所述待调节显示面板在第二刷新频率下的伽马基准电压调节量组;所述伽马基准电压调节量组包括:与所述多个特定灰阶一一对应的伽马基准电压调节量;所述第二刷新频率与所述第一刷新频率不同;附加伽马基准电压获取单元,用于根据所述第一伽马基准电压组和所述伽马基准电压调节量组,生成所述待调节显示面板在所述第二刷新频率下的第二伽马基准电压组;所述第二伽马基准电压组包括:与所述多个特定灰阶一一对应的第二伽马基准电压。An embodiment of the present invention further provides a device for generating a gamma reference voltage, including: a gamma reference voltage acquiring unit, configured to acquire a first gamma reference voltage group at a first refresh frequency of the display panel to be adjusted; The first gamma reference voltage group includes: a first gamma reference voltage corresponding to a plurality of specific grayscales one-to-one; a reference adjustment amount acquisition unit for acquiring the gamma of the display panel to be adjusted at the second refresh frequency The gamma reference voltage adjustment amount group; the gamma reference voltage adjustment amount group includes: the gamma reference voltage adjustment amount corresponding to the plurality of specific grayscales one-to-one; the second refresh frequency and the first refresh frequency different; an additional gamma reference voltage obtaining unit is configured to generate the first gamma reference voltage group under the second refresh frequency of the display panel to be adjusted according to the first gamma reference voltage group and the gamma reference voltage adjustment amount group. Two gamma reference voltage groups; the second gamma reference voltage group includes: second gamma reference voltages one-to-one corresponding to the plurality of specific gray levels.
在一些实施例中,所述参考调节量获取单元包括:第一子获取单元,用于获取多个样品显示面板在所述第一刷新频率和所述第二刷新频率下的参考伽马基准电压组;其中,所述参考伽马基准电压组包括:与所述多个特定灰阶一一对应的参考伽马基准电压;第二子获取单元,用于根据所述多个样品显示面板中每一样品显示面板,在所述第一刷新频率下的参考伽马基准电压组和所述第二刷新频率下的参考伽马基准电压组中,相同的特定灰阶下的参考伽马基准电压,获取所述样品显示面板在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压变化量;第三子获取单元,用于根据在所述第二刷新频率下,所述多个样品显示面板对应的相同的特定灰阶下的多个伽马基准电压变化量,获取在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压调节量,以形成所述第二刷新频率下的伽马基准电压调节量组。In some embodiments, the reference adjustment value acquisition unit includes: a first sub-acquisition unit configured to acquire reference gamma reference voltages of a plurality of sample display panels at the first refresh frequency and the second refresh frequency wherein, the reference gamma reference voltage group includes: reference gamma reference voltages corresponding to the plurality of specific grayscales one-to-one; a second sub-acquisition unit for displaying each In a sample display panel, in the reference gamma reference voltage group at the first refresh frequency and the reference gamma reference voltage group at the second refresh frequency, the reference gamma reference voltages at the same specific gray scale, acquiring the variation of the gamma reference voltage of the sample display panel corresponding to the specific gray scale at the second refresh frequency; a third sub-acquisition unit, configured to A plurality of gamma reference voltage variations under the same specific grayscale corresponding to the sample display panels are obtained, and the gamma reference voltage adjustment amounts corresponding to the specific grayscale at the second refresh frequency are obtained to form the A group of gamma reference voltage adjustments at the second refresh frequency.
在一些实施例中,所述第二子获取单元还用于将所述多个样品显示面板中每一样品显示面板,在所述第二刷新频率下的参考伽马基准电压组和所述第一刷新频率下的参考伽马基准电压组中,对应相同的特定灰阶下的参考伽马基准电压的差值,作为所述样品显示面板在所述第二刷新频率下、对应所述特定灰阶的伽马基准电压变化量。In some embodiments, the second sub-acquisition unit is further configured to obtain the reference gamma reference voltage group at the second refresh frequency for each sample display panel in the plurality of sample display panels and the first In the reference gamma reference voltage group at a refresh frequency, the difference value of the reference gamma reference voltages corresponding to the same specific gray scale is used as the sample display panel corresponding to the specific gray scale at the second refresh frequency The amount of change in the gamma reference voltage of the order.
在一些实施例中,所述第三子获取单元还用于将在所述第二刷新频率下,所述多个样品显示面板对应的多个伽马基准电压变化量组中,对应相同的特定灰阶下的伽马基准电压变化量的平均值,作为所述待调节显示面板在所述第二刷新频率下、对应所述特定灰阶下的伽马基准电压调节量。In some embodiments, the third sub-acquisition unit is further configured to, at the second refresh frequency, compare the same specific gamma reference voltage variation groups corresponding to the plurality of sample display panels The average value of the variation of the gamma reference voltage under the gray scale is used as the adjustment amount of the gamma reference voltage corresponding to the specific gray scale under the second refresh frequency of the display panel to be adjusted.
在一些实施例中,所述伽马基准电压获取单元还用于根据相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量,生成所述特定灰阶下的第二伽马基准电压,以形成所述第二刷新频率下的第二伽马基准电压组。In some embodiments, the gamma reference voltage obtaining unit is further configured to generate a second gamma in the specific grayscale according to the first gamma reference voltage and the gamma reference voltage adjustment amount in the same specific grayscale a reference voltage to form a second gamma reference voltage group at the second refresh frequency.
在一些实施例中,所述伽马基准电压获取单元还用于将相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量之和,作为所述特定灰阶下的第二伽马基准电压,以形成所述第二刷新频率下的第二伽马基准电压组。In some embodiments, the gamma reference voltage obtaining unit is further configured to use the sum of the first gamma reference voltage and the adjustment amount of the gamma reference voltage in the same specific gray scale as the second gamma reference voltage in the specific gray scale gamma reference voltages to form a second gamma reference voltage group at the second refresh frequency.
本发明实施例还提供一种显示面板,所述显示面板中存储通过伽马调节的方式获取的第一刷新频率下的第一伽马基准电压,以及采用如前述的伽马基准电压的生成方法获得的在第二刷新频率下的第二伽马基准电压。An embodiment of the present invention further provides a display panel, which stores a first gamma reference voltage at a first refresh frequency obtained by means of gamma adjustment, and adopts the aforementioned method for generating a gamma reference voltage The obtained second gamma reference voltage at the second refresh frequency.
在一些实施例中,所述显示面板为有机发光显示面板,所述有机发光显示面板可在所述第一刷新频率和所述第二刷新频率中的一个刷新频率下进行显示。In some embodiments, the display panel is an organic light emitting display panel, and the organic light emitting display panel can display at one of the first refresh frequency and the second refresh frequency.
本发明实施例还提供一种显示装置,包括前述的显示面板。An embodiment of the present invention further provides a display device, including the aforementioned display panel.
本发明的实施例提供一种伽马基准电压的生成方法及装置、显示面板、显示装置,该伽马基准电压的生成方法包括:获取待调节显示面板在第一刷新频率下的第一伽马基准电压组;其中,第一伽马基准电压组包括:与多个特定灰阶一一对应的第一伽马基准电压;获取待调节显示面板在第二刷新频率下的伽马基准电压调节量组;伽马基准电压调节量组包括:与多个特定灰阶一一对应的伽马基准电压调节量;第二刷新频率与第一刷新频率不同;根据第一伽马基准电压组和伽马基准电压调节量组,生成待调节显示面板在第二刷新频率下的第二伽马基准电压组;第二伽马基准电压组包括:与多个特定灰阶一一对应的第二伽马基准电压。Embodiments of the present invention provide a method and device for generating a gamma reference voltage, a display panel, and a display device. The method for generating a gamma reference voltage includes: acquiring a first gamma of a display panel to be adjusted at a first refresh frequency A reference voltage group; wherein, the first gamma reference voltage group includes: a first gamma reference voltage corresponding to a plurality of specific gray scales one-to-one; obtaining the adjustment amount of the gamma reference voltage of the display panel to be adjusted under the second refresh frequency group; the gamma reference voltage adjustment amount group includes: the gamma reference voltage adjustment amount corresponding to a plurality of specific gray scales one-to-one; the second refresh frequency is different from the first refresh frequency; according to the first gamma reference voltage group and the gamma A reference voltage adjustment amount group to generate a second gamma reference voltage group under the second refresh frequency of the display panel to be adjusted; the second gamma reference voltage group includes: a second gamma reference corresponding to a plurality of specific grayscales one-to-one Voltage.
综上所述,采用本发明中的方案,仅通过伽马调节(Gamma tuning)的方式获取第一刷新频率下的伽马基准电压,并基于第一刷新频率下的伽马基准电压和第二刷新频率下的伽马基准电压调节量直接计算得到第二刷新频率下的伽马基准电压,从而省去了通过伽马调节的方式获取第二刷新频率下的伽马基准电压的时长,进而在不增加伽马调节时间的基础上,解决显示装置在不同刷新频率下出现显示偏差的弊端。To sum up, using the solution in the present invention, the gamma reference voltage at the first refresh frequency is only obtained by means of gamma tuning, and based on the gamma reference voltage at the first refresh frequency and the second refresh rate The adjustment amount of the gamma reference voltage at the refresh frequency is directly calculated to obtain the gamma reference voltage at the second refresh frequency, thereby eliminating the need to obtain the gamma reference voltage at the second refresh frequency by means of gamma adjustment. On the basis of not increasing the gamma adjustment time, the disadvantage of display deviation in the display device under different refresh frequencies is solved.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,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的前提下,还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.
图1为本发明实施例提供的一种伽马基准电压的生成方法的流程图;1 is a flowchart of a method for generating a gamma reference voltage according to an embodiment of the present invention;
图2为本发明实施例提供的一种伽马基准电压的生成方法的部分步骤的流程图;2 is a flowchart of some steps of a method for generating a gamma reference voltage according to an embodiment of the present invention;
图3a为相关技术中多个刷新频率下共用的灰阶电压曲线;FIG. 3a is a grayscale voltage curve shared by multiple refresh frequencies in the related art;
图3b为图3a的灰阶电压曲线下,不同刷新频率下的亮度时间曲线;Fig. 3b is the luminance time curve under different refresh frequencies under the gray-scale voltage curve of Fig. 3a;
图4a为本发明实施例提供的一种不同刷新频率下的灰阶电压曲线;4a is a grayscale voltage curve under different refresh frequencies provided by an embodiment of the present invention;
图4b为图4a的灰阶电压曲线下,不同刷新频率下的亮度时间曲线。FIG. 4b is the luminance time curve under different refresh frequencies under the gray-scale voltage curve of FIG. 4a.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
除非另外定义,本发明实施例中使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明实施例中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。Unless otherwise defined, the technical or scientific terms used in the embodiments of the present invention shall have the ordinary meanings understood by those with ordinary skill in the art to which the present invention belongs. "First", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
本发明实施例提供一种伽马基准电压的生成方法,如图1所示,该生成方法包括:An embodiment of the present invention provides a method for generating a gamma reference voltage. As shown in FIG. 1 , the generating method includes:
步骤S101、获取待调节显示面板P在第一刷新频率F1下的第一伽马基准电压组G1;其中,第一伽马基准电压组G1中包括:与多个特定灰阶L一一对应的第一伽马基准电压。Step S101 , acquiring a first gamma reference voltage group G1 at the first refresh frequency F1 of the display panel P to be adjusted; wherein, the first gamma reference voltage group G1 includes: a one-to-one correspondence with a plurality of specific grayscales L; The first gamma reference voltage.
需要说明的是,上述多个特定灰阶L一般为人为设定的灰阶。以0~255的全灰阶为例,示意的(但并不限制于此),该多个特定灰阶可以包括:0灰阶(L0)、63灰阶(L63)、127灰阶(L127)、255灰阶(L255);当然,在此情况下,第一伽马基准电压组G1中包括的与各特定灰阶一一对应的第一伽马基准电压分别为:V0、V63、V127、V255;简写为:G1(V0、V63、V127、V255);以下实施例均是以此为例。It should be noted that, the above-mentioned multiple specific grayscales L are generally artificially set grayscales. Taking the full gray scale from 0 to 255 as an example, for illustration (but not limited to), the plurality of specific gray scales may include: gray scale 0 (L0), gray scale 63 (L63), gray scale 127 (L127 ), 255 grayscales (L255); of course, in this case, the first gamma reference voltages included in the first gamma reference voltage group G1 and corresponding to each specific grayscale are respectively: V 0 , V 63 , V 127 , V 255 ; abbreviated as: G1 (V 0 , V 63 , V 127 , V 255 ); the following examples are all based on this example.
步骤S102、获取待调节显示面板P在第二刷新频率F2下的伽马基准电压调节量组△G;该伽马基准电压调节量组△G包括:与多个特定灰阶一一对应的伽马基准电压调节量△V;其中,第二刷新频率F2与第一刷新频率F1不同。Step S102: Obtain the gamma reference voltage adjustment amount group ΔG of the display panel P to be adjusted at the second refresh frequency F2; the gamma reference voltage adjustment amount group ΔG includes: a one-to-one correspondence with a plurality of specific gray levels. The reference voltage adjustment amount ΔV; wherein, the second refresh frequency F2 is different from the first refresh frequency F1.
具体的,对于第一刷新频率F1以及第二刷新频率F2而言,实际中也是根据显示需要进行人为设定的。Specifically, the first refresh frequency F1 and the second refresh frequency F2 are actually set manually according to display needs.
其中,本发明中,第一刷新频率F1可以设定为显示装置常用的刷新频率(也即主刷新频率),以保证显示装置在第一刷新频率F1下能够准确的显示;第二刷新频率F2可以设置为,显示装置非常用的刷新频率(也副刷新频率);当然,本发明中的第二刷新频率F2可以为一个,也可以为多个。Among them, in the present invention, the first refresh frequency F1 can be set as the refresh frequency commonly used by the display device (that is, the main refresh frequency) to ensure that the display device can display accurately under the first refresh frequency F1; the second refresh frequency F2 It can be set as a very useful refresh frequency (also a secondary refresh frequency) of the display device; of course, the second refresh frequency F2 in the present invention can be one or multiple.
此处可以理解的是,对于第二刷新频率F2为多个的情况下:第一,该多个第二刷新频率F2不同;第二,对应本发明中的获取、计算、生成等与第二刷新频率相关的参数的单个步骤中,可以是在该单个步骤中同时获取、计算、生成不同的第二刷新频率下的相关的参数;第三,本发明中,对于不同、且具有关联的不同步骤中,第二刷新频率必然是指同一第二刷新频率。It can be understood here that, in the case of multiple second refresh frequencies F2: first, the multiple second refresh frequencies F2 are different; second, corresponding to the acquisition, calculation, generation, etc. In the single step of refreshing the parameters related to the frequency, the related parameters under different second refresh frequencies can be simultaneously acquired, calculated and generated in the single step; In the steps, the second refresh frequency must refer to the same second refresh frequency.
示意的,第一刷新频率F1可以为60Hz,第二刷新频率F2可以为30Hz;也可以为90Hz;第二刷新频率F2页可以同时包括30Hz和90Hz,本发明对比不做具体限定。Illustratively, the first refresh rate F1 may be 60Hz, the second refresh rate F2 may be 30Hz, or 90Hz; the second refresh rate F2 page may include both 30Hz and 90Hz, which is not specifically limited in the present invention.
对于上述步骤S102而言,以多个特定灰阶(L0、L63、L127、L255)为例;则第二刷新频率为30Hz的情况下,该第二刷新频率下的伽马基准电压调节量组△G30中,与多个特定灰阶L一一对应的伽马基准电压调节量分别为:简写为:第二刷新频率为90Hz的情况下,该第二刷新频率下的伽马基准电压调节量组△G90中,与多个特定灰阶L一一对应的伽马基准电压调节量分别为:简写为: For the above-mentioned step S102, a plurality of specific grayscales (L0, L63, L127, L255) are taken as an example; in the case where the second refresh frequency is 30 Hz, the set of gamma reference voltage adjustment amounts at the second refresh frequency In △G 30 , the gamma reference voltage adjustment amounts corresponding to the specific grayscales L one-to-one are: Abbreviated as: When the second refresh frequency is 90 Hz, in the gamma reference voltage adjustment amount group ΔG 90 under the second refresh frequency, the gamma reference voltage adjustment amounts corresponding to a plurality of specific grayscales L one-to-one are respectively: Abbreviated as:
步骤S103、根据第一伽马基准电压组G1和伽马基准电压调节量组△V,生成待调节显示面板在第二刷新频率F2下的第二伽马基准电压组G2;该第二伽马基准电压组G2包括:与多个特定灰阶一一对应的第二伽马基准电压。Step S103, according to the first gamma reference voltage group G1 and the gamma reference voltage adjustment amount group ΔV, generate a second gamma reference voltage group G2 of the display panel to be adjusted at the second refresh frequency F2; the second gamma reference voltage group G2; The reference voltage group G2 includes: second gamma reference voltages one-to-one corresponding to a plurality of specific gray levels.
示意的,以第二刷新频率F2为30Hz,多个特定灰阶(L0、L63、L127、L255)为例(下文均是以此为例,不再进行说明),第二伽马基准电压组G2包括的与各特定灰阶一一对应的第二伽马基准电压分别为:V′0、V′63、V′127、V′255;简写为:G2(V′0、V′63、V′127、V′255)。Illustratively, taking the second refresh frequency F2 as 30Hz and a plurality of specific grayscales (L0, L63, L127, L255) as an example (these are all taken as examples and will not be described again), the second gamma reference voltage group The second gamma reference voltages included in G2 and corresponding to each specific grayscale are: V′ 0 , V′ 63 , V′ 127 , V′ 255 ; abbreviated as: G2 (V′ 0 , V′ 63 , V' 127 , V' 255 ).
对于上述步骤S103而言,在一些实施例中,可以是根据相同的特定灰阶下的第一伽马基准电压和伽马基准电压调节量,生成该特定灰阶下的第二伽马基准电压,以形成第二刷新频率F2下的第二伽马基准电压组G2。For the above step S103, in some embodiments, the second gamma reference voltage in the specific grayscale may be generated according to the first gamma reference voltage and the adjustment amount of the gamma reference voltage in the same specific grayscale , to form a second gamma reference voltage group G2 at the second refresh frequency F2.
示意的,根据G1(V0、V63、V127、V255)和中对应L63的第一伽马基准电压V63和伽马基准电压调节量从而得到30Hz的第二刷新频率下,对应L63的第二伽马基准电压V′63;这样一来,即可获取针对第二刷新频率下,与各特定灰阶对应的第二伽马基准电压(也即第二刷新频率F2下的第二伽马基准电压组G2)。Illustratively, according to G1 (V 0 , V 63 , V 127 , V 255 ) and The first gamma reference voltage V 63 and the gamma reference voltage adjustment amount corresponding to L63 in Thus, the second gamma reference voltage V′ 63 corresponding to L63 under the second refresh frequency of 30Hz is obtained; in this way, the second gamma reference voltage corresponding to each specific gray scale under the second refresh frequency can be obtained (that is, the second gamma reference voltage group G2 at the second refresh frequency F2).
当然,如前述可知,对于具有多个第二刷新频率的情况下,在该步骤中可以同时获取不同的第二刷新频率下的第二伽马基准电压组。Of course, as can be seen from the foregoing, in the case of having multiple second refresh frequencies, in this step, the second gamma reference voltage groups at different second refresh frequencies can be obtained simultaneously.
此处需要说明的是,对于本领域的技术人员而言,可以理解的是,对于同一批次的显示面板(一般的,我们将生产工艺参数没有变更,连续生产的一批产品认为是同一批次的显示面板)而言,不同的显示面板在相同的刷新频率(包括第一刷新频率或第二刷新频率)、相同的特定灰阶下的伽马基准电压不完全相同,但是各显示面板在同一灰阶下,第一刷新频率对应的伽马基准电压与第二刷新频率对应的伽马基准电压的之间的变化量(也即前述的伽马基准电压调节量)基本一致,当然,不同的灰阶下的变化量(伽马基准电压调节量)不完全相同。It should be noted here that, for those skilled in the art, it can be understood that for the same batch of display panels (generally, we do not change the production process parameters, a batch of products produced continuously is considered to be the same batch. In terms of the second display panel), the gamma reference voltages of different display panels under the same refresh frequency (including the first refresh frequency or the second refresh frequency) and the same specific gray scale are not exactly the same, but each display panel is in Under the same gray scale, the variation between the gamma reference voltage corresponding to the first refresh frequency and the gamma reference voltage corresponding to the second refresh frequency (that is, the aforementioned gamma reference voltage adjustment amount) is basically the same. The amount of change (the amount of adjustment of the gamma reference voltage) under the gray scale is not exactly the same.
基于此,采用本发明中的方案,仅通过伽马调节(Gamma tuning、Auto Gamma)的方式获取第一刷新频率下的伽马基准电压(第一伽马基准电压),并基于第一刷新频率下的伽马基准电压和伽马基准电压调节量直接计算得到第二刷新频率下的伽马基准电压(第二伽马基准电压),从而省去了通过Gamma tuning的方式获取第二刷新频率下的伽马基准电压的时长,进而在不增加Gamma tuning时间的基础上,解决显示装置在不同刷新频率下出现显示偏差的弊端。Based on this, the solution in the present invention is adopted to obtain the gamma reference voltage (first gamma reference voltage) at the first refresh frequency only by means of gamma tuning (Gamma tuning, Auto Gamma), and based on the first refresh frequency The gamma reference voltage and the gamma reference voltage adjustment amount are directly calculated to obtain the gamma reference voltage (second gamma reference voltage) at the second refresh frequency, thus eliminating the need to obtain the second refresh frequency through Gamma tuning. The time length of the gamma reference voltage is increased, so as to solve the disadvantage of display deviation of the display device under different refresh frequencies without increasing the Gamma tuning time.
示意的,相比于针对每一刷新频率分别通过Gamma tuning的方式获取伽马基准电压而言,本发明中,采用本发明的方式,在具有一个第二刷新频率而言,可以省去一半的Gamma tuning时长;对于具有两个第二刷新频率而言,可以省去2/3的Gamma tuning时长。Illustratively, compared to obtaining the gamma reference voltage by means of Gamma tuning for each refresh frequency, in the present invention, the method of the present invention can save half of the Gamma tuning duration; for having two second refresh frequencies, 2/3 of the Gamma tuning duration can be omitted.
以下对本发明中上述步骤S102中伽马基准电压调节量△V的获取作进一步的说明。The acquisition of the gamma reference voltage adjustment amount ΔV in the above step S102 in the present invention will be further described below.
如图2所示,上述步骤S102可以包括:As shown in FIG. 2, the above step S102 may include:
步骤S1021、获取多个样品显示面板P’在第一刷新频率和第二刷新频率下的参考伽马基准电压组;其中,该参考伽马基准电压组包括:与多个特定灰阶一一对应的参考伽马基准电压。Step S1021 , acquiring reference gamma reference voltage groups of a plurality of sample display panels P' under the first refresh frequency and the second refresh frequency; wherein the reference gamma reference voltage group includes: one-to-one correspondence with a plurality of specific grayscales The reference gamma reference voltage.
可以理解的是,上述样品显示面板P’与前述的待调节显示面板P为同一批次的显示面板。It can be understood that the above-mentioned sample display panel P' and the aforementioned to-be-adjusted display panel P are display panels of the same batch.
示意的,以第一刷新频率为60Hz,第二刷新频率为30Hz,通过Gamma tuning的方式,分别获取各样品显示面板P’在60Hz的第一刷新频率下的参考伽马基准电压组O1(R0、R63、R127、R255)、30Hz的第二刷新频率下的参考伽马基准电压组O2(S0、S63、S127、S255)。Illustratively, with the first refresh frequency of 60 Hz and the second refresh frequency of 30 Hz, the reference gamma reference voltage group O1 (R 0 , R 63 , R 127 , R 255 ), the reference gamma reference voltage group O2 (S 0 , S 63 , S 127 , S 255 ) at the second refresh frequency of 30 Hz.
步骤S1022、根据多个样品显示面板P’中每一样品显示面板P’,在第一刷新频率下的参考伽马基准电压组和第二刷新频率下的参考伽马基准电压组中,相同的特定灰阶下的参考伽马基准电压,获取该样品显示面板在第二刷新频率下、对应该特定灰阶的伽马基准电压变化量。Step S1022, according to each sample display panel P' of the plurality of sample display panels P', in the reference gamma reference voltage group at the first refresh frequency and the reference gamma reference voltage group at the second refresh frequency, the same The reference gamma reference voltage at a specific gray level is obtained, and the variation of the gamma reference voltage corresponding to the specific gray level under the second refresh frequency of the sample display panel is obtained.
示意的,针对每一样品显示面板P’而言,根据第一刷新频率(60Hz)下的参考伽马基准电压组O1(R0、R63、R127、R255)和第二刷新频率(30Hz)下的参考伽马基准电压组O2(S0、S63、S127、S255)中,相同的特定灰阶(例如L63)下的参考伽马基准电压(R63和S63),获取在该第二刷新频率下,对应L63的伽马基准电压变化量A63,从而得到各样品显示面板在对应各特定灰阶的伽马基准电压变化量。Illustratively, for each sample display panel P', according to the reference gamma reference voltage group O1 (R 0 , R 63 , R 127 , R 255 ) at the first refresh frequency (60 Hz) and the second refresh frequency ( 30Hz) in the reference gamma reference voltage group O2 (S 0 , S 63 , S 127 , S 255 ), the reference gamma reference voltages (R 63 and S 63 ) under the same specific grayscale (eg L63), Obtain the gamma reference voltage variation A 63 corresponding to L63 under the second refresh frequency, thereby obtaining the gamma reference voltage variation corresponding to each specific gray scale of each sample display panel.
其中,对于S个样品显示面板P’中第i个样品显示面板在30Hz的第二刷新频率下、对应各特定灰阶的伽马基准电压变化量简写为:其中,i=1,2,3……S。Among them, for the ith sample display panel of the S sample display panels P', the variation of the gamma reference voltage corresponding to each specific gray scale under the second refresh frequency of 30Hz is abbreviated as: Wherein, i=1, 2, 3...S.
具体的,在一些实施例中,可以将多个样品显示面板P’中每一样品显示面板P’,在第二刷新频率下的参考伽马基准电压组和第一刷新频率下的参考伽马基准电压组中,对应相同的特定灰阶下的参考伽马基准电压的差值,作为该样品显示面板P’在该第二刷新频率下、对应该特定灰阶的伽马基准电压变化量;也即,A63=S63-R63(可以理解的是,该公式中的各参数均是针对同一样品显示面板P’而言的)。Specifically, in some embodiments, the reference gamma reference voltage group at the second refresh frequency and the reference gamma at the first refresh frequency for each sample display panel P' in the plurality of sample display panels P' In the reference voltage group, the difference between the reference gamma reference voltages corresponding to the same specific grayscale is used as the variation of the gamma reference voltage corresponding to the specific grayscale of the sample display panel P' under the second refresh frequency; That is, A 63 =S 63 -R 63 (it can be understood that each parameter in this formula is for the same sample display panel P').
步骤S1023、根据在第二刷新频率下,多个样品显示面板对应的相同的特定灰阶下的多个伽马基准电压变化量,获取在第二刷新频率下,对应特定灰阶下的伽马基准电压调节量,以形成在第二刷新频率下的伽马基准电压调节量组。Step S1023, according to the variation of multiple gamma reference voltages under the same specific grayscale corresponding to the plurality of sample display panels at the second refresh frequency, obtain the gamma corresponding to the specific grayscale at the second refresh frequency the reference voltage adjustment amount to form a gamma reference voltage adjustment amount group at the second refresh frequency.
示意的,对于S个样品显示面板P’而言,在对应L63、30Hz的第二刷新频率下为例,根据S个样品显示面板P’对应L63的伽马基准电压变化量获取对应L63、在30Hz的第二刷新频率下的伽马基准电压调节量从而可以得到前述在30Hz的第二刷新频率下的伽马基准电压调节量组 Illustratively, for the S sample display panels P', taking the second refresh frequency corresponding to L63 and 30 Hz as an example, according to the variation of the gamma reference voltage corresponding to L63 for the S sample display panels P' Obtain the gamma reference voltage adjustment amount corresponding to L63 at the second refresh frequency of 30Hz Thus, the aforementioned gamma reference voltage adjustment group at the second refresh frequency of 30Hz can be obtained
具体的,在一些实施例中,可以将在第二刷新频率下,多个样品显示面板对应的多个伽马基准电压变化量组中,对应相同的特定灰阶下的各伽马基准电压变化量的平均值,作为待调节显示面板在该第二刷新频率下、对应该特定灰阶下的伽马基准电压调节量。Specifically, in some embodiments, at the second refresh frequency, among the plurality of gamma reference voltage variation groups corresponding to the plurality of sample display panels, the gamma reference voltage changes corresponding to the same specific gray scale may be changed. The average value of the amount is used as the adjustment amount of the gamma reference voltage corresponding to the specific grayscale of the display panel to be adjusted at the second refresh frequency.
示意的,对于S个样品显示面板P’而言,在对应L63,30Hz的第二刷新频率下为例,可以根据S个样品显示面板P’对应L63的伽马基准电压变化量的平均值,作为对应L63、在30Hz的第二刷新频率下的伽马基准电压调节量也即,同理如其他灰阶下的伽马基准电压调节量。Illustratively, for the S sample display panels P', taking the second refresh frequency corresponding to L63 and 30 Hz as an example, the variation of the gamma reference voltage corresponding to L63 of the S sample display panels P' can be used as an example. The average value of , as the gamma reference voltage adjustment amount corresponding to L63 at the second refresh frequency of 30Hz That is, The same is the same as the adjustment amount of the gamma reference voltage in other gray scales.
当然,可以理解的是,将上述平均值作为伽马基准电压调节量仅是本发明的一种实施例,但本发明并不限制于此,实际中还可以采用加权平均值等其他的计算方式,获得各第二刷新频率下对应各特定灰阶的伽马基准电压调节量。Of course, it can be understood that using the above average value as the gamma reference voltage adjustment amount is only an embodiment of the present invention, but the present invention is not limited to this, and other calculation methods such as weighted average value can also be used in practice , to obtain the gamma reference voltage adjustment amount corresponding to each specific grayscale at each second refresh frequency.
在此基础上,对于前述步骤S103中根据第一伽马基准电压组G1和伽马基准电压调节量组△V,生成待调节显示面板在第二刷新频率F2下的第二伽马基准电压组G2;该第二伽马基准电压组G2包括:与多个特定灰阶一一对应的第二伽马基准电压而言:On this basis, for the aforementioned step S103, according to the first gamma reference voltage group G1 and the gamma reference voltage adjustment amount group ΔV, generate a second gamma reference voltage group for the display panel to be adjusted at the second refresh frequency F2 G2; the second gamma reference voltage group G2 includes: in terms of the second gamma reference voltages corresponding to a plurality of specific grayscales one-to-one:
在一些实施例中,可以相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量之和,作为该特定灰阶下的第二伽马基准电压,以形成第二刷新频率下的第二伽马基准电压组G2。In some embodiments, the sum of the first gamma reference voltage and the adjustment amount of the gamma reference voltage at the same specific grayscale can be used as the second gamma reference voltage at the specific grayscale, so as to form a second refresh rate at the second refresh frequency. The second gamma reference voltage group G2.
示意的,以在待调节显示面板P在L63,30Hz的第二刷新频率下的第二伽马基准电压V′63的生成为例,将在步骤S101中获取到的待调节显示面板P在第一刷新频率下,第一伽马基准电压组G1(V0、V63、V127、V255)中对应L63的第一伽马基准电压V63,与步骤S102中获取到的伽马基准电压调节量组中对应L63的伽马基准电压调节量之和作为L63、30Hz的第二刷新频率下,对应L63的第二伽马基准电压V′63,也即 Illustratively, taking the generation of the second gamma reference voltage V′ 63 of the display panel P to be adjusted at the second refresh frequency of L63, 30 Hz as an example, the display panel P to be adjusted obtained in step S101 is At a refresh frequency, the first gamma reference voltage V 63 corresponding to L63 in the first gamma reference voltage group G1 (V 0 , V 63 , V 127 , V 255 ) is the same as the gamma reference voltage obtained in step S102 Adjustment group The gamma reference voltage adjustment corresponding to L63 in The sum is the second gamma reference voltage V′ 63 corresponding to L63 under the second refresh frequency of L63 and 30Hz, that is,
当然,此处可以理解的是,上述采用“和”的方式计算得到附加伽马基准电压,仅是一个相对概念;例如对于前述实施例中A63=S63-R63而言,此处可以之间采用将第一刷新频率下的第一伽马基准电压与伽马基准电压调节量直接相加的方式得到第二刷新频率下的第二伽马基准电压V′63(例如,);而对于A63=R63-S63而言,此处则应该采用第一刷新频率下的第一伽马基准电压与伽马基准电压调节量的相反数相加的方式得到第二刷新频率下的第二伽马基准电压V′63(例如,);实际中可以根据需要选择具体的计算方式。Of course, it can be understood here that the additional gamma reference voltage obtained by calculating the "sum" method is only a relative concept; for example, for A 63 =S 63 -R 63 in the foregoing embodiment, here The second gamma reference voltage V′ 63 (for example, ); and for A 63 =R 63 -S 63 , the second refresh should be obtained by adding the first gamma reference voltage at the first refresh frequency and the inverse of the gamma reference voltage adjustment amount. The second gamma reference voltage V' 63 at frequency (eg, ); in practice, you can choose a specific calculation method according to your needs.
本发明实施例还提供一种伽马基准电压的生成装置,该生成装置包括:An embodiment of the present invention further provides a device for generating a gamma reference voltage, the device comprising:
伽马基准电压获取单元100,用于获取待调节显示面板P在第一刷新频率下的第一伽马基准电压组;其中,第一伽马基准电压组包括:与多个特定灰阶一一对应的第一伽马基准电压。The gamma reference voltage obtaining unit 100 is configured to obtain a first gamma reference voltage group at a first refresh frequency of the display panel P to be adjusted; wherein, the first gamma reference voltage group includes: The corresponding first gamma reference voltage.
参考调节量获取单元200,用于获取待调节显示面板在第二刷新频率下的伽马基准电压调节量组;该伽马基准电压调节量组包括:与多个特定灰阶一一对应的伽马基准电压调节量;第二刷新频率与第一刷新频率不同。The reference adjustment amount obtaining unit 200 is used to obtain a gamma reference voltage adjustment amount group under the second refresh frequency of the display panel to be adjusted; the gamma reference voltage adjustment amount group includes: The amount of reference voltage adjustment; the second refresh rate is different from the first refresh rate.
附加伽马基准电压获取单元300,用于根据第一伽马基准电压组和伽马基准电压调节量组,生成待调节显示面板在第二刷新频率下的第二伽马基准电压组;第二伽马基准电压组包括:与多个特定灰阶一一对应的第二伽马基准电压。The additional gamma reference voltage obtaining unit 300 is configured to generate a second gamma reference voltage group at the second refresh frequency of the display panel to be adjusted according to the first gamma reference voltage group and the gamma reference voltage adjustment amount group; the second gamma reference voltage group The gamma reference voltage group includes: second gamma reference voltages one-to-one corresponding to a plurality of specific grayscales.
具体的,上述参考调节量获取单元200可以包括第一子获取单元201、第二子获取单元202、第三子获取单元203。Specifically, the above-mentioned reference adjustment amount obtaining unit 200 may include a first sub-acquisition unit 201 , a second sub-acquisition unit 202 , and a third sub-acquisition unit 203 .
第一子获取单元201,用于获取多个样品显示面板在所述第一刷新频率和所述第二刷新频率下的参考伽马基准电压组;其中,所述参考伽马基准电压组包括:与所述多个特定灰阶一一对应的参考伽马基准电压。The first sub-acquisition unit 201 is configured to acquire reference gamma reference voltage groups of a plurality of sample display panels under the first refresh frequency and the second refresh frequency; wherein the reference gamma reference voltage group includes: A reference gamma reference voltage corresponding to the plurality of specific gray levels one-to-one.
第二子获取单元202,用于根据多个样品显示面板中每一样品显示面板,在第一刷新频率下的参考伽马基准电压组和第二刷新频率下的参考伽马基准电压组中,相同的特定灰阶下的参考伽马基准电压,获取样品显示面板在第二刷新频率下、对应特定灰阶的伽马基准电压变化量。The second sub-acquisition unit 202 is configured to, according to each sample display panel in the plurality of sample display panels, in the reference gamma reference voltage group at the first refresh frequency and the reference gamma reference voltage group at the second refresh frequency, The reference gamma reference voltage under the same specific grayscale is used to obtain the variation of the gamma reference voltage corresponding to the specific grayscale of the sample display panel at the second refresh frequency.
在一些实施例中,上述第二子获取单元202还用于将多个样品显示面板中每一样品显示面板,在第二刷新频率下的参考伽马基准电压组和第一刷新频率下的参考伽马基准电压组中,对应相同的特定灰阶下的参考伽马基准电压的差值,作为该样品显示面板在该第二刷新频率下、对应该特定灰阶的伽马基准电压变化量。In some embodiments, the above-mentioned second sub-acquisition unit 202 is further configured to obtain the reference gamma reference voltage group at the second refresh frequency and the reference at the first refresh frequency for each sample display panel in the plurality of sample display panels In the gamma reference voltage group, the difference of the reference gamma reference voltages corresponding to the same specific grayscale is used as the variation of the gamma reference voltage corresponding to the specific grayscale of the sample display panel at the second refresh frequency.
第三子获取单元203,用于根据在第二刷新频率下,多个样品显示面板对应的相同的特定灰阶下的多个伽马基准电压变化量,获取在该第二刷新频率下、对应该特定灰阶的伽马基准电压调节量,以形成该第二刷新频率下的伽马基准电压调节量组。The third sub-acquisition unit 203 is configured to acquire, at the second refresh frequency, the pair of gamma reference voltages corresponding to the plurality of sample display panels at the same specific grayscale and corresponding to the change amounts of the gamma reference voltages at the second refresh frequency. A gamma reference voltage adjustment amount of a specific gray scale should be used to form a gamma reference voltage adjustment amount group at the second refresh frequency.
在一些实施例中,上述第三子获取单元203还用于将在第二刷新频率下,多个样品显示面板对应的多个伽马基准电压变化量组中,对应相同的特定灰阶下的伽马基准电压变化量的平均值,作为待调节显示面板在该第二刷新频率下、对应该特定灰阶下的伽马基准电压调节量。In some embodiments, the above-mentioned third sub-acquisition unit 203 is further configured to determine, at the second refresh frequency, a plurality of gamma reference voltage variation groups corresponding to the plurality of sample display panels, corresponding to the same specific grayscale. The average value of the variation of the gamma reference voltage is used as the gamma reference voltage adjustment amount of the display panel to be adjusted under the second refresh frequency and corresponding to the specific gray scale.
另外,在一些实施例中,前述的伽马基准电压获取单元300还用于根据相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量,生成特定灰阶下的第二伽马基准电压,以形成该第二刷新频率下的第二伽马基准电压组。In addition, in some embodiments, the aforementioned gamma reference voltage obtaining unit 300 is further configured to generate a second gamma under a specific gray level according to the first gamma reference voltage and the adjustment amount of the gamma reference voltage under the same specific gray level gamma reference voltages to form a second gamma reference voltage group at the second refresh frequency.
在另一些实施例中,前述的伽马基准电压获取单元300还用于将相同特定灰阶下的第一伽马基准电压和伽马基准电压调节量之和,作为该特定灰阶下的第二伽马基准电压,以形成第二刷新频率下的第二伽马基准电压组。In other embodiments, the aforementioned gamma reference voltage obtaining unit 300 is further configured to use the sum of the first gamma reference voltage and the adjustment amount of the gamma reference voltage in the same specific grayscale as the first gamma reference voltage in the specific grayscale Two gamma reference voltages to form a second gamma reference voltage group at the second refresh frequency.
需要说明的是,对于该伽马基准电压的生成装置中其他的相关内容,可以对应的参考前述伽马基准电压的生成方法实施例中的对应部分,此处不再赘述;另外该伽马基准电压的生成装置与前述伽马基准电压的生成方法对应的装置,具有与前述实施例提供的生成方法相同的过程和有益效果。由于前述实施例已经对伽马基准电压的生成方法的过程和有益效果进行了详细的描述,此处不再赘述It should be noted that, for other related content in the device for generating the gamma reference voltage, you can refer to the corresponding parts in the foregoing embodiments of the method for generating the gamma reference voltage, which will not be repeated here; The voltage generating device and the device corresponding to the foregoing gamma reference voltage generating method have the same process and beneficial effects as the generating method provided by the foregoing embodiment. Since the process and beneficial effects of the method for generating the gamma reference voltage have been described in detail in the foregoing embodiments, they will not be repeated here.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能单元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单元由不同的功能单元完成,即将装置的内部结构划分成不同的功能单元,以完成以上描述的全部或者部分功能。上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of the description, only the division of the above functional units is used for illustration. The internal structure of the device is divided into different functional units to complete all or part of the functions described above. For the specific working process of the system, apparatus and unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.
在本申请所提供的几个实施例中,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,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
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。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
所述集成的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,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .
另外,本发明实施例还提供一种显示面板以及包括该显示面板的显示装置,该显示面板即为前述实施例中待调节显示面板P,该显示面板中存储有通过Gamma tuning的方式获取的第一刷新频率下的第一伽马基准电压(即前述实施例中第一伽马基准电压组中的各伽马基准电压),该显示面板中还存储有采用前述伽马基准电压的生成方法获取到的第二刷新频率下的第二伽马基准电压(基于第一伽马基准电压组和伽马基准电压调节量得到)。In addition, an embodiment of the present invention also provides a display panel and a display device including the display panel. The display panel is the display panel P to be adjusted in the foregoing embodiment, and the display panel stores the first data obtained by gamma tuning. The first gamma reference voltage at a refresh frequency (that is, each gamma reference voltage in the first gamma reference voltage group in the foregoing embodiment), and the display panel also stores data obtained by using the foregoing gamma reference voltage generation method. The obtained second gamma reference voltage at the second refresh frequency (obtained based on the first gamma reference voltage group and the adjustment amount of the gamma reference voltage).
在一些实施例中,该显示面板可以是有机发光显示面板,其可以在第一刷新频率下进行显示,也可以在第二刷新频率下进行显示。该有机发光显示面板在第一频率下进行显示时,使用第一伽马基准电压组确定在某一特定灰阶下的电压值,在第二频率下进行显示时,使用第二伽马基准电压组确定在某一特定灰阶下的电压值。In some embodiments, the display panel may be an organic light emitting display panel, which may be displayed at a first refresh rate or may be displayed at a second refresh rate. When the organic light emitting display panel is displayed at the first frequency, the first gamma reference voltage group is used to determine the voltage value at a certain gray scale, and when the organic light emitting display panel is displayed at the second frequency, the second gamma reference voltage is used The group determines the voltage value at a particular grayscale.
示意的,以手机为例,可以将上述第一刷新频率下的第一伽马基准电压和第二刷新频率下的第二伽马基准电压,存储于Display Drive IC(显示驱动IC)中。Illustratively, taking a mobile phone as an example, the first gamma reference voltage at the first refresh frequency and the second gamma reference voltage at the second refresh frequency can be stored in a Display Drive IC.
需要说明的是,在本发明实施例中,显示装置可以为:电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。It should be noted that, in the embodiment of the present invention, the display device may be: electronic paper, OLED panel, mobile phone, tablet computer, TV, monitor, notebook computer, digital photo frame, navigator, etc. any product or component with display function .
以下将采用本发明的方式,采用Gamma tuning的方式获取第一刷新频率下的第一伽马基准电压,而前述实施例的方法获取第二刷新频率下的第二伽马基准电压(即第一刷新频率和第二刷新频率采用不同的灰阶电压曲线),与相关技术中分别采用第一刷新频率和第二刷新频率采用相同的伽马基准电压(也即采用相同的灰阶电压曲线)相比较,对本发明效果做进一步的说明。In the following, the method of the present invention will be used to obtain the first gamma reference voltage at the first refresh frequency by means of Gamma tuning, and the method of the foregoing embodiment will obtain the second gamma reference voltage at the second refresh frequency (ie the first gamma reference voltage). The refresh frequency and the second refresh frequency use different gray-scale voltage curves), which is different from the use of the same gamma reference voltage (that is, the same gray-scale voltage curve) in the related art. By comparison, the effect of the present invention will be further described.
具体的,以第一刷新频率为60Hz,第二刷新频率为30Hz。Specifically, the first refresh frequency is 60 Hz, and the second refresh frequency is 30 Hz.
如图3a所示,60Hz的第一刷新频率和30Hz的第二刷新频率,采用同一灰阶电压曲线11,在此情况下,参考图3b,可以看出,对于60Hz的第一刷新频率下的平均亮度X1与30Hz的第二刷新频率下的平均亮度X2之间存在较大的亮度差△X,从而也造成了显示装置在不同刷新频率下出现显示偏差。As shown in Figure 3a, the first refresh frequency of 60Hz and the second refresh frequency of 30Hz use the same gray-
相比之下,如图4a所示,采用本发明的方案,60Hz的第一刷新频率和30Hz的第二刷新频率采用不同的灰阶电压曲线,如图4a中曲线21对应60Hz的第一刷新频率(通过Gammatuning的方式得到),曲线22对应30Hz的第二刷新频率(通过本发明的获取方式得到);在此情况下,参考图4b,可以看出,对于60Hz的第一刷新频率和30Hz的第二刷新频率的平均亮度基本一致(X),亮度偏差一般在0.5Level以下,属于可以接受的范围;也即能够在不增加Gamma tuning时间的基础上(也即不另开辟Gamma Band),保证生产节拍时间(tact time)的同时,避免了显示装置在不同刷新频率下出现显示偏差的弊端。In contrast, as shown in Figure 4a, using the solution of the present invention, the first refresh rate of 60Hz and the second refresh rate of 30Hz use different grayscale voltage curves, as shown in Figure 4a, the
本领域普通技术人员可以理解:实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机可读取存储介质中,该程序在执行时,执行包括上述方法实施例的步骤;而前述的存储介质包括:ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
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