WO2020259555A1 - 显示亮度调试方法以及装置 - Google Patents

显示亮度调试方法以及装置 Download PDF

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WO2020259555A1
WO2020259555A1 PCT/CN2020/098000 CN2020098000W WO2020259555A1 WO 2020259555 A1 WO2020259555 A1 WO 2020259555A1 CN 2020098000 W CN2020098000 W CN 2020098000W WO 2020259555 A1 WO2020259555 A1 WO 2020259555A1
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test
brightness
block
gray level
display brightness
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PCT/CN2020/098000
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English (en)
French (fr)
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邱彬
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Publication of WO2020259555A1 publication Critical patent/WO2020259555A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

Definitions

  • This application relates to the field of display technology, and in particular to a method and device for adjusting display brightness.
  • the charging time of the sub-pixels is usually adjusted, and then the charging amount is adjusted, thereby adjusting the display brightness.
  • a method for adjusting display brightness including:
  • n is a positive integer greater than 1;
  • the backlight brightness of the transition zone is adjusted so that the backlight brightness of at least one transition zone is located between the compensated backlight brightness of two adjacent test blocks on both sides of the transition zone.
  • a display brightness debugging device including:
  • the dividing module is configured to divide the display panel into n test blocks, there is a transition zone between two adjacent test blocks, and n is a positive integer greater than 1;
  • the test module is set to test the display brightness of each test block
  • a selection module configured to select a test block from the n test blocks as a reference block
  • the debugging module is configured to compensate the backlight brightness of the other test blocks according to the difference between the display brightness of the reference block and the display brightness of the other test blocks, and adjust the backlight brightness of the transition zone so that at least The backlight brightness of one transition zone is located between the compensated backlight brightness of two adjacent test blocks on both sides of the transition zone.
  • the above display brightness debugging method and device use the display brightness of the reference block as a reference to compensate the backlight brightness of other test blocks.
  • the entire display panel can be displayed more uniformly.
  • this embodiment shows that the adjusted backlight brightness of at least one transition zone of the brightness debugging device is located between the compensated backlight brightness of two adjacent test blocks on both sides of the transition zone. Therefore, the brightness of the corresponding adjacent test blocks can be transitioned more uniformly, thereby further improving the uniformity of the display panel.
  • FIG. 1 is a schematic flowchart of a method for adjusting display brightness in an embodiment
  • FIG. 2 is a schematic diagram of a display panel and its display brightness in an embodiment
  • Figure 3 is a schematic diagram of a display panel and its backlight brightness in an embodiment
  • Fig. 4 is a schematic flowchart of selecting a test block from the n test blocks as a reference block in an embodiment
  • 5 to 8 are schematic diagrams of the process of judging the gray scale of each test block in different embodiments, and selecting the reference block according to the judgment result;
  • FIG. 9 is a schematic flowchart of compensation for the backlight brightness of other test blocks according to the difference between the display brightness of the reference block and the display brightness of other test blocks in an embodiment
  • Fig. 10 is a schematic diagram of a display brightness debugging device module in an embodiment.
  • the display brightness adjustment method provided in this application can be, but is not limited to, applied to the adjustment of the display brightness of liquid crystal display products.
  • a method for adjusting display brightness including:
  • Step S1 Divide the display panel 100 into n test blocks 110, with a transition zone 120 between two adjacent test blocks 110, where n is a positive integer greater than 1.
  • n is a positive integer greater than 1, that is, the display panel is divided into at least two test blocks 110.
  • the number of test blocks 110 can be designed according to actual requirements.
  • the test block 110 can be divided into 9 test blocks.
  • the shape and size of each test block 110 can be the same or different, and it can also be designed according to actual needs.
  • Step S2 test the display brightness of each test block 110.
  • the display brightness is the brightness finally displayed on the display panel.
  • the display brightness is measured for each test block 110.
  • the display panel 100 is divided into 9 test blocks 110 with the same shape and size, and the display brightness of each test block 110 is x1-x9, respectively.
  • step S3 one test block 110 among the n test blocks 110 is selected as the reference block 110a.
  • the selection of the reference block 110a can be specifically selected according to actual conditions, which is not limited in this application.
  • step S4 according to the difference between the display brightness of the reference block 110a and the display brightness of the other test blocks 110, the backlight brightness of the other test blocks 110 is compensated.
  • the display brightness of the reference block 110a is used as a reference to compensate the backlight brightness of the other test blocks 110.
  • the backlight brightness directly affects the display brightness. Therefore, in this embodiment, the display brightness of each of the other test blocks 110 can be consistent with the display brightness of the reference block 110a, so that the entire display panel can be displayed more uniformly.
  • step S5 the backlight brightness of the transition area 120 is adjusted so that the backlight brightness of at least one transition area 120 is located between the compensated backlight brightness of two adjacent test blocks 110 on both sides of the transition area 120.
  • the transition area 120 is located between the test blocks 110.
  • the display panel 100 is divided into 9 test blocks 110, and there are 12 transition areas between the 9 test blocks 110.
  • the transition area 120 has an obvious brightness jump.
  • the backlight brightness of the transition zone 120 is further adjusted so that the backlight brightness of at least one transition zone 120 is located at the compensated backlight brightness of two adjacent test blocks 110 on both sides of the transition zone 120 (for the reference block 110a,
  • the compensated backlight brightness is the original backlight brightness). Therefore, the brightness of the corresponding adjacent test blocks 110 can transition more uniformly, thereby further improving the uniformity of the display panel.
  • the backlight brightness of the transition zone 120 is adjusted so that the backlight brightness of at least one transition zone 120 is located between the compensated backlight brightness of two adjacent test blocks 110 on both sides of the transition zone 120 (ie, step S5) includes: adjusting the backlight brightness of the transition region 120 so that the backlight brightness of any transition region 120 is the average value of the compensated backlight brightness of two adjacent test blocks 110 on both sides of the transition region 120. Therefore, this embodiment can make the display brightness of the display face more uniform.
  • the display panel 100 is divided into 9 test blocks 110 with the same shape and size.
  • the display brightness of each test block 110 is x1-x9, respectively.
  • the compensated backlight brightness of each test block 110 is y1-y9, respectively.
  • the adjusted backlight brightness of each transition zone 120 is z1-z12, respectively.
  • selecting one of the n test blocks 110 as the reference block 110a includes:
  • Step S31 Determine the gray scale of each test area 110 according to the display brightness of each test area 110.
  • the gray scale of each test area 110 can be obtained by the display brightness of each test area 110.
  • step S32 the gray scale of each test block 110 is determined, and the reference block 110a is selected according to the determination result.
  • the reference block 110a is determined according to the gray level of each test block 110 of the display panel, so that the display panel can be better adjusted under each gray level.
  • the selection of the reference block 110a may not be based on the gray scale.
  • a certain test block 110 may be uniformly selected as the reference block, and this application is not limited.
  • step S32 may specifically include:
  • step S321a it is determined whether there is a test block 110 whose gray level is less than the lowest gray level threshold.
  • step S322a if there is a test block 110 whose gray scale is less than the lowest gray scale threshold, the test block 110 with the lowest brightness is used as the reference block 110a.
  • step S323a if there is no test block 110 with a gray level less than the lowest gray level threshold, it is determined whether there is a test block 110 with a gray level greater than the highest gray level threshold.
  • step S324a if there is a test block 110 whose grayscale is greater than the highest grayscale threshold, the test block 110 with the highest brightness is used as a reference block.
  • step S325a if there is no test block 110 whose gray scale is greater than the highest gray scale threshold, the preset test block is used as a reference block.
  • step S32 may specifically include:
  • step S321b it is determined whether there is a test block 110 whose gray scale is greater than the highest gray scale threshold.
  • step S322b if there is a test block 110 whose grayscale is greater than the highest grayscale threshold, the test block 110 with the highest brightness is used as the reference block 110a.
  • step S323b if there is no test block 110 with a gray level greater than the highest gray level threshold, then it is determined whether there is a test block 110 with a gray level less than the minimum gray level threshold.
  • step S324b if there is a test block 110 whose gray scale is less than the lowest gray scale threshold, the test block 110 with the lowest brightness is used as the reference block 110a.
  • step S325b if there is no test block 110 whose gray scale is less than the lowest gray scale threshold, the preset test block 110 is used as the reference block 110a.
  • default test block refers to the test block that has been set as a reference before adjustment.
  • the default test block is the test block 110 located in the center.
  • the middle part is the most watched part. Therefore, the test block 110 located in the center is used as a preset test block and then as a reference block, which can achieve a better debugging effect.
  • the preset test block is not limited to the test block 110 located in the center, which is not limited in this application.
  • the “lowest grayscale threshold” refers to the preset lowest grayscale value (for example, 31) for each test block, and the “highest grayscale threshold” refers to the highest grayscale value preset for each test block (for example, 199). Since the adjustment of the display brightness is aimed at the adjustment of the pure color picture, the gray scale difference of each test block 110 will not be very large.
  • the “minimum grayscale threshold” and the “maximum grayscale threshold” are also set when setting such that when the same pure color image is adjusted, each test block 110 does not cross the three grayscale ranges.
  • the first type is all distributed between the lowest grayscale threshold and the highest grayscale threshold; the second type is between the lowest grayscale threshold and the highest grayscale threshold.
  • the thresholds there are also those that are less than the lowest gray level threshold (at this time, the gray level of at least one test block 110 is less than the lowest gray level threshold); the third type is between the lowest gray level threshold and the highest gray level threshold Yes, there are also those greater than the highest grayscale threshold (at this time, the grayscale of at least one test block 110 is greater than the highest grayscale threshold).
  • step S32 have achieved the following effects: the gray scale distribution of each test block 110 is the first case (that is, the gray scales of all test blocks 110 are distributed between the lowest gray threshold and the highest gray Between the thresholds), the preset test block 110 is used as the reference block 110a; the gray scale distribution of each test block 110 is the second case (that is, the gray scale of at least one test block 110 is less than the lowest gray Threshold), the test block 110 with the lowest brightness is used as the reference block 110a; the gray scale distribution of each test block 110 is the third case above (that is, the gray scale of at least one test block 110 is greater than the highest gray scale Threshold), the test block 110 with the highest brightness is used as the reference block 110a.
  • step S32 may include:
  • step S321c it is determined whether the gray levels of all test blocks 110 are between the lowest gray level threshold and the highest gray level threshold.
  • step S322c if the gray levels of all the test blocks 110 are between the lowest gray level threshold and the highest gray level threshold, the preset test block 110 is used as the reference block 110a.
  • step S323c if the gray level of the test block 110 is not between the lowest gray level threshold and the highest gray level threshold, it is determined whether there is a test block 110 with a gray level greater than the highest gray level threshold.
  • step S324c if there is a test block 110 whose grayscale is greater than the highest grayscale threshold, the test block 110 with the highest brightness is used as the reference block 110a.
  • step S325c if there is no test block 110 whose grayscale is greater than the highest grayscale threshold, the test block 110 with the lowest brightness is used as the reference block 110a.
  • step S32 may include:
  • step S321d it is determined whether the gray levels of all test blocks 110 are between the lowest gray level threshold and the highest gray level threshold.
  • step S322d if the gray levels of all test blocks 110 are between the lowest gray-level threshold and the highest gray-level threshold, the preset test block 110 is used as the reference block 110a.
  • step S323d if the gray level of the test block 110 is not between the lowest gray level threshold and the highest gray level threshold, it is determined whether there is a test block 110 with a gray level less than the minimum gray level threshold.
  • step S324d if there is a test block 110 whose gray scale is less than the lowest gray scale threshold, the test block 110 with the lowest brightness is used as the reference block 110a.
  • step S325d if there is no test block 110 whose gray scale is less than the lowest gray scale threshold, the test block 110 with the highest brightness is used as the reference block 110a.
  • step S32 is not limited to selecting different test blocks 110 as the reference block 110a according to the three gray scale ranges. It can also be based on two or more gray scale ranges. , And a different test block 110 is selected as the reference block 110a. This application has no restrictions on this.
  • step S4 compensating the backlight brightness of the other test blocks 110 (ie, step S4) includes:
  • Step S41 Calculate the display difference between the display brightness of the reference block 110a and the display brightness of the other test blocks 110.
  • the test block 110 located in the center is taken as the reference block 110a, and its display brightness is x5.
  • Step S43 Divide the display difference between the display brightness of the reference block 110a and the display brightness of the other test blocks 110 by the transmittance a of the display panel to obtain the backlight brightness of the reference block 110a and the other test blocks The backlight difference of the backlight brightness of 110.
  • the transmittance a here can be obtained by measurement.
  • step S42 is further included before step S43: measuring the transmittance a of the display panel 100.
  • the penetration rate a may also be a system parameter, which may be specifically determined according to the previous test results of the same product or the average value of multiple test results.
  • the transmittance a is a system parameter, in the process of debugging the display brightness, the system parameters can be directly read to obtain the transmittance a without real-time measurement, so that the debugging of the display brightness is simpler and more efficient.
  • step S44 the backlight brightness of the other test blocks is compensated according to the backlight difference between the backlight brightness of the reference block 110a and the backlight brightness of the other test blocks 110.
  • the original backlight brightness of all test blocks can be set to y.
  • the difference between the display brightness of the reference block 110a and the display brightness of the other test blocks 110 is specifically the display difference between the two. In other embodiments, it may be different from this.
  • the difference between the display brightness of the reference block 110a and the display brightness of the other test blocks 110 can also be the display ratio of the two, and then the backlight brightness of the other test blocks 110 is compensated accordingly according to the display ratio.
  • a display brightness debugging device including: a division module 10, a test module 20, a selection module 30, and a debugging module 40.
  • the dividing module 10 is configured to divide the display panel 100 into n test blocks 110, with a transition zone 120 between two adjacent test blocks 110, and n is a positive integer greater than 1.
  • the test module 20 is configured to test the display brightness of each test block 110.
  • the selection module 30 is configured to select one test block 110 among the n test blocks 110 as the reference block 110a.
  • the debugging module 40 is configured to compensate the backlight brightness of the other test blocks 110 according to the difference between the display brightness of the reference block 110a and the display brightness of the other test blocks 110, and adjust the backlight brightness of the transition zone 120 so that at least The backlight brightness of a transition zone 120 is located between the compensated backlight brightness of two adjacent test blocks 110 on both sides of the transition zone 120.
  • the display brightness debugging device of this embodiment uses the display brightness of the reference block 110a as a reference to compensate the backlight brightness of the other test blocks 110.
  • the backlight brightness directly affects the display brightness. Therefore, in this embodiment, the display brightness of each of the other test blocks 110 can be consistent with the display brightness of the reference block 110a, so that the entire display panel can be displayed more uniformly.
  • the present embodiment shows that the adjusted backlight brightness of at least one transition zone 120 of the brightness debugging device is located at the compensated backlight brightness of two adjacent test blocks 110 on both sides of the transition zone 120 (for the reference block 110a, The compensated backlight brightness is the original backlight brightness). Therefore, the brightness of the corresponding adjacent test blocks 110 can be transitioned more uniformly, thereby further improving the uniformity of the display panel.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
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Abstract

一种显示亮度调试方法以及装置，方法包括：将显示面板(100)划分为n个测试区块(110)，相邻两个测试区块（110）之间具有过渡区(120)，n为大于1的正整数(S1)；测试各测试区块(110)的显示亮度(x1-x9)(S2)；从n个测试区块(110)中选择一个测试区块(110)作为参考区块(110a)(S3)；根据参考区块(110a)的显示亮度(x5)与其他各测试区块(110)的显示亮度(x1-x4,x6-x9)的差异，对其他各测试区块(110)的背光亮度进行补偿(S4)；调整过渡区(120)的背光亮度(z1-z12)，使得至少一个过渡区(120)的背光亮度(z1-z12)位于过渡区(120)两侧的两个相邻测试区块(110)的补偿后的背光亮度(y1-y9)之间(S5)。

Description

显示亮度调试方法以及装置
相关申请的交叉引用
本申请要求于2019年06月25日提交中国专利局、申请号为201910555721.1、发明名称为“显示亮度调试方法以及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，特别是涉及一种显示亮度调试方法以及装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着显示技术的发展，人们对于显示均匀性的要求越来越高。对于显示面板的显示亮度的调试方法，目前通常是对子像素的充电时间进行调整，进而调整充电量，从而调整显示亮度。
但是，受到走线阻抗以及寄生电容等的影响，充电时间与显示亮度并不是线形的。因此，上述显示亮度的均匀度仍有待提高。
发明内容
基于此，有必要提供一种显示亮度调试方法以及装置。
一种显示亮度调试方法，包括：
将显示面板划分为n个测试区块，相邻两个测试区块之间具有过渡区，n为大于1的正整数；
测试各测试区块的显示亮度；
从所述n个测试区块中选择一个测试区块作为参考区块；
根据所述参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿；
调整所述过渡区的背光亮度，使得至少一个所述过渡区的背光亮度位于所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度之间。
一种显示亮度调试装置，包括：
划分模块，设置为将显示面板划分为n个测试区块，相邻两个测试区块之间具有过渡区，n为大于1的正整数；
测试模块，设置为测试各测试区块的显示亮度；
选择模块，设置为从所述n个测试区块中选择一个测试区块作为参考区块；以及
调试模块，设置为根据所述参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿，并且调整所述过渡区的背光亮度，使得至少一个所述过渡区的背光亮度位于所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度之间。
上述显示亮度调试方法以及装置，以参考区块的显示亮度为参考，对其他各测试区块的背光亮度进行补偿。进而使得整个显示面板可以更加均匀的显示。并且，本实施例显示亮度调试装置的至少一个过渡区的调整后的背光亮度位于所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度之间。因此，相应的相邻测试区块的亮度可以进行较均匀地过渡，进而进一步提高了显示面板的均匀性。
附图说明
图1为一个实施例中显示亮度调试方法流程示意图；
图2为一个实施例中显示面板及其显示亮度示意图；
图3为一个实施例中显示面板及其背光亮度示意图；
图4为一个实施例中从所述n个测试区块中选择一个测试区块作为参考区 块的流程示意图；
图5-图8为不同实施例中判断各测试区块的灰阶所在的范围，并根据判断结果选择参考区块的流程示意图；
图9为一个实施例中根据参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿的流程示意图；
图10为一个实施例中显示亮度调试装置模块示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请提供的显示亮度调试方法，可以但不限于应用于液晶显示产品的显示亮度的调试。
在一个实施例中，参考图1以及图2，提供了一种显示亮度调试方法，包括：
步骤S1，将显示面板100划分为n个测试区块110，相邻两个测试区块110之间具有过渡区120，n为大于1的正整数。
这里的n为大于1的正整数，即将显示面板划分为至少两个测试区块110。具体地测试区块110的数量可以根据实际需求进行设计。例如，可以将测试区块110划分为9个测试区块。各个测试区块110的形状尺寸可以相同，也可以不同，其也可以根据实际需求进行设计。
步骤S2，测试各测试区块110的显示亮度。
显示亮度即显示面板最终显示出来的亮度。这里对每个测试区块110进行显示亮度的测量。在图2中，显示面板100划分为9个形状尺寸相同的测试区块110，各测试区块110的显示亮度分别为x1-x9。
步骤S3，选择n个测试区块110中的一个测试区块110作为参考区块110a。
参考区块110a的选取具体可以根据实际情况进行选取，本申请对此并没有限制。
步骤S4，根据参考区块110a的显示亮度与其他各测试区块110的显示亮度的差异，对其他各测试区块110的背光亮度进行补偿。
本实施例通过以参考区块110a的显示亮度为参考，对其他各测试区块110的背光亮度进行补偿。背光亮度直接影响显示亮度。因此，本实施例可以使得其他各测试区块110的显示亮度均与参考区块110a的显示亮度一致，进而使得整个显示面板可以更加均匀的显示。
步骤S5，调整过渡区120的背光亮度，使得至少一个过渡区120的背光亮度位于该过渡区120两侧的两个相邻测试区块110的补偿后的背光亮度之间。
过渡区120位于各测试区块110之间。参考图1，显示面板100划分为9个测试区块110，9个测试区块110之间具有12个过渡区。
如若测试区块110之间的灰阶差值较大，会看到过渡区120具有明显的亮度跳变。本实施例进一步调整过渡区120的背光亮度，使得至少一个过渡区120的背光亮度位于该过渡区120两侧的两个相邻测试区块110的补偿后的背光亮度(对于参考区块110a，其补偿后的背光亮度即为原背光亮度)之间。因此，相应的相邻测试区块110的亮度可以进行较均匀地过渡，进而进一步提高了显示面板的均匀性。
在一个实施例中，调整过渡区120的背光亮度，使得至少一个过渡区120的背光亮度位于该过渡区120两侧的两个相邻测试区块110的补偿后的背光亮度之间(即步骤S5)包括：调整过渡区120的背光亮度，使得任意一个过渡区120的背光亮度均为该过渡区120两侧的两个相邻测试区块110的补偿后的背光亮度的均值。因此，本实施例可以使得这个显示面部的显示亮度更加均匀。
具体地，例如参考图2以及图3，显示面板100划分为9个形状尺寸相同的测试区块110。各测试区块110的显示亮度分别为x1-x9。各测试区块110的补偿后的背光亮度分别为y1-y9。各过渡区120的调整后的背光亮度分别为z1-z12。则z1＝(y1+y2)/2，z2＝(y2+y3)/2，z3＝(y1+y4)/2，z4＝(y2+y5)/2，z5＝(y3+y6)/2，z6＝(y4+y5)/2，z7＝(y5+y6)/2，z8＝(y4+y7)/2，z9＝(y5+y8)/2，z10＝(y6+y9)/2，z11＝(y7+y8)/2，z12＝(y8+y9)/2。
在一个实施例中，参考图4，选择n个测试区块110中的一个测试区块110作为参考区块110a(即步骤S3)，包括：
步骤S31，根据各测试区110的显示亮度确定各测试区块110的灰阶。
亮度和灰阶存在对应关系。因此，可以通过各测试区110的显示亮度获得各测试区110的灰阶。
步骤S32，判断各测试区块110的灰阶所在的范围，并根据判断结果选择参考区块110a。
本实施例根据显示面板的各测试区块110的灰阶情况确定参考区块110a，进而使得显示面板在各灰阶下都可以得到更好的调整。当然，参考区块110a的选取也可以不按灰阶情况，例如可以统一选定某一个测试区块110为参考区块，本申请对此没有限制。
参考图5，步骤S32具体地可以包括：
步骤S321a，判断是否有灰阶小于最低灰阶阈值的测试区块110。
步骤S322a，若有灰阶小于最低灰阶阈值的测试区块110，则以亮度最低的测试区110块作为参考区块110a。
步骤S323a，若无灰阶小于最低灰阶阈值的测试区块110，则判断是否有灰阶大于最高灰阶阈值的测试区块110。
步骤S324a，若有灰阶大于最高灰阶阈值的测试区块110，则以亮度最高的测试区块110作为参考区块。
步骤S325a，若无灰阶大于最高灰阶阈值的测试区块110，则以预设测试区块作为参考区块。
或者参考图6，步骤S32具体地可以包括：
步骤S321b，判断是否有灰阶大于最高灰阶阈值的测试区块110。
步骤S322b，若有灰阶大于最高灰阶阈值的测试区块110，则以亮度最高的测试区块110作为参考区块110a。
步骤S323b，若无灰阶大于最高灰阶阈值的测试区块110，则判断是否有灰阶小于最低灰阶阈值的测试区块110。
步骤S324b，若有灰阶小于最低灰阶阈值的测试区块110，则以亮度最低的测试区块110作为参考区块110a。
步骤S325b，若无灰阶小于最低灰阶阈值的测试区块110，则以预设测试区块110作为参考区块110a。
这里“预设测试区块”是指调整前已经设定好的作为参考的测试区块。当测试区块110的数量为奇数个时，预设测试区块为位于中央的测试区块110。使用者在观看显示画面时，中间部位是被观看最多的部位。因此以位于中央的测试区块110作为预设测试区块，进而作为参考区块，可以达到更佳的调试效果。当然，预设测试区块也并不限于为位于中央的测试区块110，本申请对此没有限制。
“最低灰阶阈值”是指各测试区块预设的最低灰阶值(例如为31)，“最高灰阶阈值”是指各测试区块预设的最高灰阶值(例如为199)。由于显示亮度的调节是针对于纯色画面的调节，所以各测试区块110的灰阶差值不会很大。“最低灰阶阈值”以及“最高灰阶阈值”在设置时也会设置成使得在同一纯色画面的调节时，各测试区块110不会横跨三种灰阶范围。
因此，各测试区块110的灰阶分布情况为三种：第一种，全部分布在最低灰阶阈值与最高灰阶阈值之间；第二种，既有位于最低灰阶阈值与最高灰阶阈值之间的，也有小于最低灰阶阈值的(此时，至少一个测试区块110的灰阶小于最低灰阶阈值)；第三种，既有位于最低灰阶阈值与最高灰阶阈值之间的，也有大于最高灰阶阈值的(此时，至少一个测试区块110的灰阶大于最高灰阶阈值)。
上述两种步骤S32的实现方式均达到了以下效果：各测试区块110的灰阶分布情况为上述第一种情况(即全部测试区块110的灰阶均分布在最低灰阶阈值与最高灰阶阈值之间)时，以预设测试区块110作为参考区块110a；各测试区块110的灰阶分布情况为上述第二种情况(即至少一个测试区块110的灰阶小于最低灰阶阈值)时，以亮度最低的测试区块110作为参考区块110a；各测试区块110的灰阶分布情况为上述第三种情况(即至少一个测试区块110的灰阶大于最高灰阶阈值)时，以亮度最高的测试区块110作为参考区块110a。
当然，为了达到上述效果，步骤S32的具体实现方式也可与上述两种方式不同，例如，参考图7，步骤S32可以包括：
步骤S321c，判断是否所有测试区块110的灰阶均位于最低灰阶阈值与最高灰阶阈值之间。
步骤S322c，若所有测试区块110的灰阶均位于最低灰阶阈值与最高灰阶阈值之间，则以预设测试区块110作为参考区块110a。
步骤S323c，若有测试区块110的灰阶不位于最低灰阶阈值与最高灰阶阈值之间，则判断是否有灰阶大于最高灰阶阈值的测试区块110。
步骤S324c，若有灰阶大于最高灰阶阈值的测试区块110，则以亮度最高的测试区块110作为参考区块110a。
步骤S325c，若无灰阶大于最高灰阶阈值的测试区块110，则以亮度最低的测试区块110作为参考区块110a。
或者，参考图8，，步骤S32可以包括：
步骤S321d，判断是否所有测试区块110的灰阶均位于最低灰阶阈值与最高灰阶阈值之间。
步骤S322d，若所有测试区块110的灰阶均位于最低灰阶阈值与最高灰阶阈值之间，则以预设测试区块110作为参考区块110a。
步骤S323d，若有测试区块110的灰阶不位于最低灰阶阈值与最高灰阶阈值之间，则判断是否有灰阶小于最低灰阶阈值的测试区块110。
步骤S324d，若有灰阶小于最低灰阶阈值的测试区块110，则以亮度最低的测试区110块作为参考区块110a。
步骤S325d，若无灰阶小于最低灰阶阈值的测试区块110，则以亮度最高的测试区块110作为参考区块110a。
在本申请其他实施例中，步骤S32也并不限于根据三种灰阶范围情况，而选择不同的测试区块110作为参考区块110a，其也可以根据两种或者三种以上灰阶范围情况，而选择不同的测试区块110作为参考区块110a。本申请对此均没有限制。
在一个实施例中，参考图9，根据参考区块110a的显示亮度与其他各测试区块110的显示亮度的差异，对其他各测试区块110的背光亮度进行补偿(即步骤S4)包括：
步骤S41，计算参考区块110a的显示亮度与其他各测试区块110的显示亮度的显示差值。
例如，参考图2，以位于中央的测试区块110为参考区块110a，其显示亮度为x5。本步骤计算参考区块110a的显示亮度与其他各测试区块110的显示亮度的显示差值分别为：d1＝x5-x1，d2＝x5-x2，d3＝x5-x3，d4＝x5-x4，d6＝x5-6，d7＝x5-x7，d8＝x5-x8，d9＝x5-x9。
步骤S43，将参考区块110a的显示亮度与其他各测试区块110的显示亮度的显示差值除以显示面板的穿透率a，进而获取参考区块110a的背光亮度与其他各测试区块110的背光亮度的背光差值。
例如，继续参考图2，参考区块110a的背光亮度与其他各测试区块110的背光亮度的背光差值分别为：D1＝d1/a，D2＝d2/a，D3＝d3/a，D4＝d4/a，D6＝d6/a，D7＝d7/a，D8＝d8/a，D9＝d9/a。
这里的穿透率a可以经过测量获得，此时步骤S43之前还包括步骤S42：测量显示面板100的穿透率a。通过实时测量，能够更准确地获得当前的显示面板100的穿透率a。或者，穿透率a也可以为一个系统参量，其具体可以根据同种产品的之前的测试结果或者多次测试结果的均值进行确定。穿透率a为系统参量时，在调试显示亮度的过程中，无需实时测量而可以直接读取系统参量以获取穿透率a，从而使得显示亮度的调试更为简单高效。
步骤S44，根据参考区块110a的背光亮度与其他各测试区块110的背光亮度的背光差值对其他各测试区块的背光亮度进行补偿。
所有测试区块的原始背光亮度可以均设为y。参考图3，则其他各测试区块110的补偿后的背光亮度分别为，y1＝y+D1，y2＝y+D2，y3＝y+D3，y4＝y+D4，y6＝y+D6，y7＝y+D7，y8＝y+D8，y9＝y+D9。位于中央的测试区块110为参考区块110a，其可以不用进行补偿动作，也可以补偿0，其补偿后的背光亮度即为y5＝y。
在本实施例中，参考区块110a的显示亮度与其他各测试区块110的显示亮度的差异具体为二者的显示差值。在其他实施例中，也可以与此不同。例如，参考区块110a的显示亮度与其他各测试区块110的显示亮度的差异也可以为二者的显示比值，然后其他各测试区块110的背光亮度根据显示比值进行相应补偿。
在一个实施例中，参考图10，还提供了一种显示亮度调试装置，包括：划分模块10、测试模块20、选择模块30、以及调试模块40。
划分模块10设置为将显示面板100划分为n个测试区块110，相邻两个测试区块110之间具有过渡区120，n为大于1的正整数。测试模块20设置为测试各测试区块110的显示亮度。选择模块30设置为选择n个测试区块110中的一个测试区块110作为参考区块110a。调试模块40设置为根据参考区块110a的显示亮度与其他各测试区块110的显示亮度的差异，对其他各测试区块110的背光亮度进行补偿，并且调整过渡区120的背光亮度，使得至少一个过渡区120的背光亮度位于该过渡区120两侧的两个相邻测试区块110的补偿后的背光亮度之间。
本实施例显示亮度调试装置，以参考区块110a的显示亮度为参考，对其他各测试区块110的背光亮度进行补偿。背光亮度直接影响显示亮度。因此，本实施例可以使得其他各测试区块110的显示亮度均与参考区块110a的显示亮度一致，进而使得整个显示面板可以更加均匀的显示。并且，本实施例显示亮度调试装置的至少一个过渡区120的调整后的背光亮度位于该过渡区120两侧的两个相邻测试区块110的补偿后的背光亮度(对于参考区块110a，其补偿后的背光亮度即为原背光亮度)之间。因此，相应的相邻测试区块110的亮度可以进行较均匀地过渡，进而进一步提高了显示面板的均匀性。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细， 但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (17)

  1. 一种显示亮度调试方法，其中，包括：
    将显示面板划分为n个测试区块，相邻两个测试区块之间具有过渡区，n为大于1的正整数；
    测试各测试区块的显示亮度；
    从所述n个测试区块中选择一个测试区块作为参考区块；
    根据所述参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿；以及
    调整所述过渡区的背光亮度，使得至少一个所述过渡区的背光亮度位于所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度之间。
  2. 根据权利要求1所述的显示亮度调试方法，其中，调整所述过渡区的背光亮度，使得至少一个所述过渡区的背光亮度位于所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度之间，包括：调整所述过渡区的背光亮度，使得任意一个所述过渡区的背光亮度均为所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度的均值。
  3. 根据权利要求1所述的显示亮度调试方法，其中，从所述n个测试区块中选择一个测试区块作为参考区块，包括：
    根据各测试区块的显示亮度确定各测试区块的灰阶；以及
    判断各测试区块的灰阶所在的范围，并根据判断结果选择所述参考区块。
  4. 根据权利要求3所述的显示亮度调试方法，其中，判断各测试区块的灰阶所在的范围，并根据判断结果选择所述参考区块，包括：
    判断是否有灰阶小于最低灰阶阈值的测试区块；
    若有灰阶小于最低灰阶阈值的测试区块，则以亮度最低的测试区块作为参考区块。
  5. 根据权利要求4所述的显示亮度调试方法，其中，判断是否有灰阶小于最低灰阶阈值的测试区块之后，还包括：
    若无灰阶小于最低灰阶阈值的测试区块，则判断是否有灰阶大于最高灰阶 阈值的测试区块；
    若有灰阶大于最高灰阶阈值的测试区块，则以亮度最高的测试区块作为参考区块；
    若无灰阶大于最高灰阶阈值的测试区块，则以预设测试区块作为参考区块。
  6. 根据权利要求3所述的显示亮度调试方法，其中，判断各测试区块的灰阶所在的范围，并根据判断结果选择所述参考区块，包括：
    判断是否有灰阶大于最高灰阶阈值的测试区块；
    若有灰阶大于最高灰阶阈值的测试区块，则以亮度最高的测试区块作为参考区块。
  7. 根据权利要求6所述的显示亮度调试方法，其中，判断是否有灰阶大于最高灰阶阈值的测试区块之后，还包括：
    若无灰阶大于最高灰阶阈值的测试区块，则判断是否有灰阶小于最低灰阶阈值的测试区块；
    若有灰阶小于最低灰阶阈值的测试区块，则以亮度最低的测试区块作为参考区块；
    若无灰阶小于最低灰阶阈值的测试区块，则以预设测试区块作为参考区块。
  8. 根据权利要求3所述的显示亮度调试方法，其中，判断各测试区块的灰阶所在的范围，并根据判断结果选择所述参考区块，包括：
    判断是否所有测试区块的灰阶均位于最低灰阶阈值与最高灰阶阈值之间；
    若所有测试区块的灰阶均位于最低灰阶阈值与最高灰阶阈值之间，则以预设测试区块作为参考区块。
  9. 根据权利要求8所述的显示亮度调试方法，其中，判断是否所有测试区块的灰阶均位于最低灰阶阈值与最高灰阶阈值之间之后，包括：
    若有测试区块的灰阶不位于最低灰阶阈值与最高灰阶阈值之间，则：
    判断是否有灰阶大于最高灰阶阈值的测试区块；
    若有灰阶大于最高灰阶阈值的测试区块，则以亮度最高的测试区块作为参考区块；
    若无灰阶大于最高灰阶阈值的测试区块，则以亮度最低的测试区块作为参考区块。
  10. 根据权利要求8所述的显示亮度调试方法，其中，判断是否所有测试区块的灰阶均位于最低灰阶阈值与最高灰阶阈值之间之后，包括：
    若有测试区块的灰阶不位于最低灰阶阈值与最高灰阶阈值之间，则：
    判断是否有灰阶小于最低灰阶阈值的测试区块；若有灰阶小于最低灰阶阈值的测试区块，则以亮度最低的测试区块作为参考区块；若无灰阶小于最低灰阶阈值的测试区块，则以亮度最高的测试区块作为参考区块。
  11. 根据权利要求4所述的显示亮度调试方法，其中，所述测试区块的数量为奇数个时，所述预设测试区块为位于中央的测试区块。
  12. 根据权利要求1所述的显示亮度调试方法，其中，根据所述参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿，包括：
    计算所述参考区块的显示亮度与其他各测试区块的显示亮度的显示差值，
    将所述参考区块的显示亮度与其他各测试区块的显示亮度的显示差值除以显示面板的穿透率，进而获取所述参考区块的背光亮度与其他各测试区块的背光亮度的背光差值；以及
    根据所述参考区块的背光亮度与其他各测试区块的背光亮度的背光差值对其他各测试区块的背光亮度进行补偿。
  13. 根据权利要求1所述的显示亮度调试方法，其中，根据所述参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿，包括：
    根据所述参考区块的显示亮度与其他各测试区块的显示亮度的显示比值，对其他各测试区块的背光亮度进行补偿。
  14. 根据权利要求12所述的显示亮度调试方法，其中，将所述参考区块的显示亮度与其他各测试区块的显示亮度的显示差值除以所述穿透率，进而获取所述参考区块的背光亮度与其他各测试区块的背光亮度的背光差值之前，还包 括：
    测量所述显示面板的穿透率。
  15. 根据权利要求12所述的显示亮度调试方法，其中，所述穿透率为系统参量。
  16. 根据权利要求15所述的显示亮度调试方法，其中，所述系统参量是根据同种产品之前的测试结果或者多次测试结果的均值确定的。
  17. 一种显示亮度调试装置，其中，包括：
    划分模块，设置为将显示面板划分为n个测试区块，相邻两个测试区块之间具有过渡区，n为大于1的正整数；
    测试模块，设置为测试各测试区块的显示亮度；
    选择模块，设置为从所述n个测试区块中选择一个测试区块作为参考区块；以及
    调试模块，设置为根据所述参考区块的显示亮度与其他各测试区块的显示亮度的差异，对其他各测试区块的背光亮度进行补偿，并且调整所述过渡区的背光亮度，使得至少一个所述过渡区的背光亮度位于所述过渡区两侧的两个相邻测试区块的补偿后的背光亮度之间。
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