WO2020093553A1 - 显示系统的亮度调节方法、亮度调节系统及显示系统 - Google Patents

显示系统的亮度调节方法、亮度调节系统及显示系统 Download PDF

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Publication number
WO2020093553A1
WO2020093553A1 PCT/CN2018/122554 CN2018122554W WO2020093553A1 WO 2020093553 A1 WO2020093553 A1 WO 2020093553A1 CN 2018122554 W CN2018122554 W CN 2018122554W WO 2020093553 A1 WO2020093553 A1 WO 2020093553A1
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light
emitting element
block
display panel
turn
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PCT/CN2018/122554
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English (en)
French (fr)
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康志聪
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惠科股份有限公司
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Publication of WO2020093553A1 publication Critical patent/WO2020093553A1/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

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  • the present application relates to the technical field of liquid crystal display, in particular to a brightness adjustment method of a display system, a brightness adjustment system and a display system.
  • the brightness of the LCD panel display is controlled by the backlight module, the signal driving circuit and the glasses driving circuit.
  • the backlight module is composed of a plurality of light-emitting elements arranged in a certain manner.
  • the light-emitting elements are used to light up the blocks of the liquid crystal panel. Due to the difference in the manufacturing process of the light-emitting elements, the average brightness of the backlight of each block of the liquid crystal panel is different from each other.
  • both the panel and the liquid crystal glasses need to be driven for a certain time to output a stable penetration rate; if the opening of the liquid crystal glasses is synchronized with the writing of the driving signal of the liquid crystal panel and the opening of the backlight module, the wearing of the liquid crystal glasses
  • the combined effect of the transmissivity response, the transmissivity response of the liquid crystal panel and the average brightness of the backlight of each block of the liquid crystal panel makes the transmissivity response of the liquid crystal glasses corresponding to each block of the liquid crystal panel, the transmissivity response of the liquid crystal panel and the liquid crystal panel
  • the products of the average brightness of the backlight of each block are not equal, which results in the uneven brightness of the liquid crystal glasses of each block of the liquid crystal panel.
  • Various embodiments according to the present application provide a brightness adjustment method, brightness adjustment system, and display system of a display system.
  • a brightness adjustment method for a display system is set to adjust the brightness of a display panel through glasses, the display panel is lit by a backlight module, the glasses include a first lens and a second lens, and the display panel includes a plurality of areas Block, the backlight module includes a plurality of light emitting elements; the brightness adjustment method of the display system includes the following steps:
  • the driving current of each light-emitting element is adjusted from the preset current to the second driving current.
  • a brightness adjustment system is set to adjust the brightness of a display panel through glasses.
  • the display panel is lit by a backlight module.
  • the glasses include a first lens and a second lens.
  • the display panel includes a plurality of blocks.
  • the backlight module includes a plurality of light-emitting elements;
  • the brightness adjustment system includes a signal driving circuit, a glasses driving circuit, and a control circuit;
  • the signal driving circuit is configured to write the first driving signal to the display panel;
  • the glasses driving circuit is configured to control the first lens to turn on;
  • the control circuit is configured to control each light-emitting element of the backlight module to turn on;
  • the control circuit It is also set to adjust the driving current of each light-emitting element from a preset current to the first driving current;
  • the signal drive circuit is further configured to write a second drive signal to the display panel; the eyeglass drive circuit is also configured to control the second lens to turn on; the control circuit is also configured to control each light-emitting element of the backlight module to turn on; The control circuit is further configured to adjust the driving current of each light-emitting element from a preset current to a second driving current.
  • a display system includes a display panel and the above-mentioned brightness adjustment system.
  • FIG. 1 is a flowchart of a method for adjusting the brightness of a display system in an embodiment
  • FIG. 2 is a corresponding diagram of a unilateral side-entry light source and a block in an embodiment
  • FIG. 3 is a corresponding diagram of a bilateral side-entry light source and a block in an embodiment
  • FIG. 4 is a corresponding diagram of a direct light source and a block in an embodiment
  • 6 is a timing diagram of display panel penetration rate, eyeglass penetration rate, and backlight brightness in one display cycle in one embodiment
  • FIG. 7 is a timing diagram of display panel transmittance, glasses transmittance, and backlight brightness in one display cycle in another embodiment
  • FIG. 8 is a functional block diagram of a brightness adjustment system in an embodiment.
  • FIG. 1 is a flowchart of a brightness adjustment method of a display system provided by a preferred embodiment of the present application. It should be noted that the method of the present application is not limited to the order of the following steps, and in other embodiments, the method of the present application may include only some of the following steps, or some of the steps may be deleted. In addition, in other embodiments, one step may be split into multiple steps, or multiple steps may also be combined into one step.
  • the brightness adjustment method of the display system is used to adjust the brightness of a display panel through glasses, the display panel is lit by a backlight module, the glasses include a first lens and a second lens, and the display panel includes a plurality of blocks
  • the backlight module includes a plurality of light-emitting elements, and the plurality of light-emitting elements make up a backlight; the brightness adjustment method of the display system includes the following steps:
  • Step S1 Write the first driving signal into the display panel, control the first lens to turn on, and control each light-emitting element of the backlight module to turn on.
  • the driving signal includes a first driving signal and a second driving signal.
  • the glasses are 3D liquid crystal glasses
  • the display panel is a 3D liquid crystal display panel.
  • the backlight source may be an edge-type light source or a direct-type light source.
  • the side-entry light source includes a single-sided side-entry light source and a double-sided side-entry light source. Each light-emitting element of the backlight module is turned on simultaneously or sequentially.
  • the side-entry light source is a unilateral side-entry light source
  • the light-emitting elements are LEDs (Light Emitting Diodes), and the number is N
  • the side-entry light source is a double-sided side-entry light source
  • the light-emitting elements are LEDs and the number is 2N
  • each two LEDs correspond to a block
  • each two LED lighting corresponds to a block, for example, LED1A and LED1B lighting block BL1, LED2A and LED2B lighting block BL2, ..., LEDNA and LEDNB lighting block BLN.
  • the side-lit light source uses a small number of light-emitting elements, which is conducive to product weight reduction.
  • the backlight is a direct light source.
  • the number of the plurality of light-emitting elements is N * M, arranged in a matrix of N rows and M columns, M LEDs in each row correspond to one block, and M LEDs in each row light up corresponding to one block,
  • the light emitting element is an LED.
  • LED1A, LED1B, ..., LED1M constitute the first row of LED backlight unit LED1;
  • Each row of LED backlight units is used to light up a corresponding block, for example, LED1 lights up block BL1, LED2 lights up block BL2, ..., LEDN lights up block BLN.
  • the direct light source can make the brightness of each block of the display panel more uniform.
  • the light-emitting element may also be a CCFL (Cold Cathode Fluorescent Lamp).
  • CCFL Cold Cathode Fluorescent Lamp
  • Step S2 Adjust the driving current of each light-emitting element from a preset current to the first driving current.
  • the first driving current is a driving current corresponding to the writing of the first driving signal and the opening of the first lens of each light-emitting element in one display period of the display panel.
  • the preset current is the default drive current before the drive current of each light-emitting element is adjusted.
  • the driving current is used to drive the light emitting element to emit light.
  • the turn-on time of each light-emitting element is equal and the preset time
  • the first driving signal is written into the display panel, and the turn-on time of each light-emitting element reaches the preset time shut down.
  • Step S3 Write the second driving signal to the display panel, control the second lens to turn on, and control each light-emitting element of the backlight module to turn on.
  • Step S4 Adjust the driving current of each light-emitting element from a preset current to a second driving current.
  • the second driving current is a driving current corresponding to the writing of the second driving signal and the opening of the second lens of each light-emitting element in one display period of the display panel.
  • the second driving signal is written into the display panel, and each light-emitting element turns on after reaching a preset time.
  • the multiple light-emitting elements of the backlight module are turned on simultaneously or sequentially.
  • the first driving signal is written to the display panel and the first lens is turned on, and each light-emitting element is turned on in turn
  • the second driving signal is written to the display panel and the second lens is turned on, Each light-emitting element is turned on in turn. If the first driving signal is written to the display panel and the first lens is turned on, and each light-emitting element is turned on simultaneously, then the second driving signal is written to the display panel and the second lens is turned on, and each light-emitting element is turned on simultaneously.
  • calculating the first driving current and the second driving current includes the steps of:
  • Step S01 Write the first driving signal to the display panel, control the first lens to turn on, and control each light-emitting element of the backlight module to turn on.
  • Step S02 detecting the first glasses transmittance corresponding to each light emitting element of the first lens, the first panel transmittance corresponding to each block of each light emitting element of the display panel and the average backlight brightness of each block .
  • the first spectacle penetration rate corresponds to the spectacle penetration rate of the first lens corresponding to the writing of the first driving signal and corresponding to each light emitting element.
  • the first panel transmission rate corresponds to the panel transmission rate written by the first driving signal for each block of the display panel.
  • the brightness of each block of the display panel through the glasses is the product of the transmission rate of the display panel, the transmission rate of the glasses, and the average brightness of the backlight of the display panel.
  • the average backlight brightness of the display panel is the average brightness of the backlight that lights up the display panel
  • the brightness of the display panel is the brightness of the display panel display. Therefore, by adjusting the average brightness of the backlight of each block of the display panel, the penetration rate of each block of the display panel, the penetration rate of the glasses corresponding to each block and each block of the display panel
  • the product of the average brightness of the backlight is equal, which makes the brightness of each section of the display panel through the glasses uniform.
  • the penetration rate of the glasses corresponding to each block is the penetration rate of the glasses corresponding to the light-emitting elements corresponding to each block.
  • the average brightness of the backlight of each block corresponds to the average brightness of the light-emitting elements of each block.
  • the average brightness of the backlight of each block can be adjusted by adjusting the drive current of a corresponding light-emitting element.
  • Step S03 Obtain the driving current of each light-emitting element of the backlight module and store it as the preset current.
  • Step S04 Calculate the first driving current of each light-emitting element according to the first glasses penetration rate, the first panel penetration rate of each block, the average backlight brightness of each block, and the preset current.
  • Step S05 Write the second driving signal to the display panel, control the second lens to turn on, and control each light-emitting element of the backlight module to turn on.
  • Step S06 Detecting the second glasses penetration rate of the second lens corresponding to each light-emitting element, the second panel penetration rate of each block of the display panel corresponding to each light-emitting element, and the average backlight brightness of each block .
  • the second glasses penetration rate corresponds to the glasses penetration rate written by the second driving signal and corresponding to each light emitting element.
  • the second panel transmission rate corresponds to the panel transmission rate written by the second driving signal for each block of the display panel.
  • Step S07 Calculate the second driving current of each light-emitting element according to the second glasses penetration rate, the second panel penetration rate of each block, the average backlight brightness of each block, and the preset current.
  • the backlight is an edge-type light source and each light-emitting element is turned on in turn.
  • Curve 1 is the first driving signal written into the display panel.
  • Curve 2 is the first glasses penetration rate of the first lens corresponding to each light emitting element, and the first glasses penetration rate of the first lens corresponding to each light emitting element is L_T_1, L_T_2, ..., L_T_N.
  • the " ⁇ " in the first half of the display period in FIG. 6 is the first panel penetration rate corresponding to the turn-on time of each light-emitting element in each block, and the first panel penetration corresponding to the turn-on time of each light-emitting element in each block
  • the rates are OC_TL_1, OC_TL_2, ..., OC_TL_N.
  • the rectangle in the first half of the display period in FIG. 6 represents the average brightness of the backlight of each block.
  • the average brightness of the block BL1 is BL_ave_1
  • the average brightness of the block BL2 is BL_ave_2, ...
  • the average brightness of the block BLN is BL_ave_N. Due to differences in the manufacturing process of the backlight module, BL_ave_1 ⁇ BL_ave_2 ⁇ ... ⁇ BL_ave_N.
  • Curve 3 is the second driving signal written into the display panel.
  • Curve 4 is the second lens penetration rate of the second lens corresponding to each light-emitting element, and the second lens penetration rate of the second lens corresponding to each light-emitting element is R_T_1, R_T_2, ..., R_T_N.
  • the “ ⁇ ” of the display period in the second half of FIG. 6 is the second panel penetration rate corresponding to the turn-on time of each light-emitting element in each block, and the second panel penetration corresponding to the turn-on time of each light-emitting element in each block Transmittances are OC_TR_1, OC_TR_2, ..., OC_TR_N.
  • the average brightness of block BL1 is BL_ave_1
  • the average brightness of block BL2 is BL_ave_2, ...
  • the average brightness of block BLN is BL_ave_N. Due to differences in the manufacturing process of the backlight module, BL_ave_1 ⁇ BL_ave_2... ⁇ BL_ave_N.
  • the turn-on time of each light-emitting element is t1, t2, ..., tN, that is, corresponding to each block
  • the first driving current of each light-emitting element is adjusted so that the average brightness of the corresponding block BL1 changes from BL_ave_1 to BL_ave_L1 ', and the average brightness of block BL2 changes from BL_ave_2 to BL_ave_L2', ..., the block BLN
  • the average brightness changes from BL_ave_N to BL_ave_LN '.
  • the brightness after the first lens is uniform.
  • the second driving current of each light-emitting element is adjusted so that the average brightness of the corresponding block BL1 changes from BL_ave_1 to BL_ave_R1 ', the average brightness of block BL2 changes from BL_ave_2 to BL_ave_R2', ..., the block BLN
  • the average brightness changes from BL_ave_N to BL_ave_R'N '.
  • the brightness of the block through the second lens is uniform.
  • the brightness adjustment method of the display system of the present application adjusts the average brightness of the backlight of the block corresponding to each light-emitting element by adjusting the first drive current and the second drive current of each light-emitting element of the backlight module,
  • the product of the penetration rate of each block of the display panel, the penetration rate of the glasses corresponding to each block, and the average brightness of the backlight of each block of the display panel are equal, so that each block of the display panel passes through the glasses
  • the brightness is uniform.
  • the brightness adjustment method of the display system provided by the embodiment of the present application will be described in detail below with reference to FIG. 8. It should be noted that the brightness adjustment system shown in FIG. 8 is used to perform the method of the embodiment shown in FIG. 1 of the present application. For ease of description, only the parts related to the embodiment of the present application are shown, and specific technical details are not disclosed. Please refer to the embodiment shown in FIG. 1 of this application.
  • the brightness adjustment system is used to adjust the brightness of the display panel through the glasses.
  • the display panel is lit by a backlight module.
  • the glasses include a first lens and a second lens.
  • the display panel includes a plurality of Block.
  • the brightness adjustment system includes a signal driving circuit 10, a glasses driving circuit 20, and a control circuit 30.
  • the signal driving circuit 10 is used to write the first driving signal to the display panel.
  • the glasses driving circuit 20 is used to control the opening of the first lens.
  • the control circuit 30 is used to control each light-emitting element of the backlight module to turn on.
  • the control circuit 30 is also used to adjust the driving current of each light-emitting element from a preset current to the first driving current.
  • the signal driving circuit 10 is also used to write the second driving signal to the display panel.
  • the glasses driving circuit 20 is also used to control the opening of the second lens.
  • the control circuit 30 is also used to control each light-emitting element of the backlight module to turn on.
  • the control circuit 30 is also used to adjust the drive current of each light-emitting element from a preset current to a second drive current.
  • the brightness adjustment system further includes a first detector 40, a second detector 50, and a third detector 60.
  • the first detector 40 is used when the signal driving circuit 10 writes the first driving signal to the display panel, the glasses driving circuit 20 controls the first lens to turn on, and the control circuit 30 controls each light emission of the backlight module When the element is turned on, the penetration rate of the first lens corresponding to each light-emitting element of the first lens is detected and transmitted to the control circuit 30.
  • the second detector 50 is used when the signal driving circuit 10 writes the first driving signal to the display panel, the glasses driving circuit 20 controls the first lens to turn on, and the control circuit 30 controls each light emission of the backlight module When the element is turned on, the first panel transmittance corresponding to each block of each light-emitting element of the display panel is detected and transmitted to the control circuit 30.
  • the third detector 60 is used when the signal driving circuit 10 writes the first driving signal to the display panel, the glasses driving circuit 20 controls the first lens to turn on, and the control circuit 30 controls each light emission of the backlight module When the device is turned on, the average brightness of the backlight of each block is detected and transmitted to the control circuit 30.
  • the control circuit 30 is also used to obtain the driving current of each light-emitting element of the backlight module and store it as a preset current.
  • the control circuit 30 is further used for calculating the light emitting element's light emitting element according to the first glasses penetration rate, the first panel penetration rate of each block, the average backlight brightness of each block and the preset time The first drive current.
  • the first detector 40 is also used when the signal driving circuit 10 writes a second driving signal to the display panel, the glasses driving circuit 20 controls the second lens to turn on, and the control circuit 30 controls each of the backlight modules When the light-emitting element is turned on, the second lens transmission rate corresponding to each light-emitting element of the second lens is detected and transmitted to the control circuit 30.
  • the second detector 50 is also used when the signal driving circuit 10 writes a second driving signal to the display panel, the glasses driving circuit 20 controls the second lens to turn on, and the control circuit 30 controls each of the backlight modules When the light emitting element is turned on, the second panel transmittance of each block of the display panel corresponding to each light emitting element is detected and transmitted to the control circuit 30.
  • the third detector 60 is also used when the signal driving circuit 10 writes a second driving signal to the display panel, the glasses driving circuit 20 controls the second lens to turn on, and the control circuit 30 controls each of the backlight modules When the light emitting element is turned on, the average brightness of the backlight of each block is detected and transmitted to the control circuit 30.
  • the control circuit 30 is also used to calculate the light-emitting element's brightness based on the second glasses penetration rate, the second panel penetration rate of each block, the average backlight brightness of each block and the preset current Second drive current.
  • the present application also provides a display system, which includes a display panel and the above-mentioned brightness adjustment system.
  • the brightness adjustment system and the display system of the present application adjust the average brightness of the backlight of the block corresponding to each light-emitting element by adjusting the first drive current and the second drive current of each light-emitting element of the backlight module, so that each display panel
  • the penetration rate of each block, the penetration rate of the glasses corresponding to each block and the average brightness of the backlight of each block of the display panel are equal, so that the brightness of each block of the display panel through the glasses is uniform.
  • the display panel according to the embodiment of the present invention may be any one of the following: liquid crystal display panel, OLED display panel, QLED display panel, twisted nematic (TN) or super twisted nematic (Super Twisted Nematic, STN) type, flat Switching (In-Plane, Switching, IPS) type, Vertical Alignment (VA) type, curved type panel, or other display panel.
  • TN twisted nematic
  • STN super twisted nematic
  • IPS flat Switching
  • VA Vertical Alignment
  • curved type panel or other display panel.

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Abstract

一种显示系统的亮度调节方法，显示系统的亮度调节方法包括步骤：将第一驱动信号写入显示面板，控制第一镜片开启及控制背光模块的每个发光元件开启（S1）；将每个发光元件的驱动电流由预设电流调节至第一驱动电流（S2）；将第二驱动信号写入显示面板，控制第二镜片开启及控制背光模块的每个发光元件开启（S3）；将每个发光元件的驱动电流由预设电流调节至第二驱动电流（S4）。

Description

显示系统的亮度调节方法、亮度调节系统及显示系统
本申请要求于2018年11月07日提交中国专利局、申请号为201811320862.7、申请名称为“显示系统的亮度调节方法、亮度调节系统及显示系统”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
本申请涉及液晶显示技术领域，特别涉及一种显示系统的亮度调节方法、亮度调节系统及显示系统。
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。
液晶面板显示的亮度由背光模块、讯号驱动电路以及眼镜驱动电路的相互配合控制。背光模块由多个按一定方式排布的发光元件构成，发光元件用于点亮液晶面板的区块，由于发光元件存在制造工艺的差异，液晶面板各个区块的背光平均亮度互不相同；液晶面板及液晶眼镜由于液晶的物理特性，均需要驱动达到一定的时间才能输出稳定的穿透率；若液晶眼镜的开启同步于液晶面板驱动信号的写入及背光模块的开启，则液晶眼镜的穿透率响应、液晶面板的穿透率响应与液晶面板各个区块的背光平均亮度的共同作用使得液晶面板各个区块对应的液晶眼镜的穿透率响应、液晶面板的穿透率响应与液晶面板各个区块的背光平均亮度的乘积不相等，从而导致液晶面板各个区块透过液晶眼镜的亮度不均匀。
发明内容
根据本申请的各种实施例提供一种显示系统的亮度调节方法、亮度调节系统及显示系统。
一种显示系统的亮度调节方法，设置为调节显示面板透过眼镜的亮度，所述显示面板由背光模块点亮，所述眼镜包括第一镜片及第二镜片，所述显示面板包括多个区块，所述背光模块包括多个发光元件；所述显示系统的亮度调节方法包括以下步骤：
将第一驱动信号写入显示面板，控制第一镜片开启及控制背光模块的每个发光元件开启；
将每个发光元件的驱动电流由预设电流调节至第一驱动电流；
将第二驱动信号写入显示面板，控制第二镜片开启及控制背光模块的每个发光元件开启；
将每个发光元件的驱动电流由预设电流调节至第二驱动电流。
一种亮度调节系统，设置为调节显示面板透过眼镜的亮度，所述显示面板由背光模块点亮，所述眼镜包括第一镜片及第二镜片，所述显示面板包括多个区块，所述背光模块包括多个发光元件；所述亮度调节系统包括讯号驱动电路、眼镜驱动电路及控制电路；
所述讯号驱动电路设置为将第一驱动信号写入显示面板；所述眼镜驱动电路设置为控制第一镜片开启；所述控制电路设置为控制背光模块的每个发光元件开启；所述控制电路还设置为将每个发光元件的驱动电流由预设电流调节至第一驱动电流；
所述讯号驱动电路还设置为将第二驱动信号写入显示面板；所述眼镜驱动电路还设置为控制第二镜片开启；所述控制电路还设置为控制背光模块的 每个发光元件开启；所述控制电路还设置为将每个发光元件的驱动电流由预设电流调节至第二驱动电流。
一种显示系统，所述显示系统包括显示面板及上述的亮度调节系统。
附图说明
图1为一个实施例中显示系统的亮度调节方法的流程图；
图2为一个实施例中单边侧入式光源与区块的对应图；
图3为一个实施例中双边侧入式光源与区块的对应图；
图4为一个实施例中直下式光源与区块的对应图；
图5为一个实施例中计算第一驱动电流及第二驱动电流的流程图；
图6为一个实施例中显示面板穿透率、眼镜穿透率及背光亮度在一个显示周期中的时序图；
图7为另一个实施例中显示面板穿透率、眼镜穿透率及背光亮度在一个显示周期中的时序图；
图8为一个实施例中亮度调节系统的功能模块图。
具体实施方式
请参阅图1，其为本申请较佳实施例提供的显示系统的亮度调节方法的流程图。所应说明的是，本申请的方法并不受限于下述步骤的顺序，且其他实施例中，本申请的方法可以只包括以下步骤的其中一部分，或者其中的部分步骤可以被删除。此外，在其他实施方式中，一个步骤可以被拆分为多个步骤，或者多个步骤也可以合并为一个步骤。
所述显示系统的亮度调节方法用于调节显示面板透过眼镜的亮度，所述 显示面板由背光模块点亮，所述眼镜包括第一镜片及第二镜片，所述显示面板包括多个区块，所述背光模块包括多个发光元件，所述多个发光元件组成背光源；所述显示系统的亮度调节方法包括以下步骤：
步骤S1，将第一驱动信号写入显示面板，控制第一镜片开启及控制背光模块的每个发光元件开启。在一个显示周期中，驱动信号包括第一驱动信号及第二驱动信号。
在一个实施例中，所述眼镜为3D液晶眼镜，所述显示面板为3D液晶显示面板。
所述背光源可以是侧入式光源或直下式光源。所述侧入式光源包括单边侧入式光源及双边侧入式光源。背光模块的每个发光元件同时或依次开启。
如图2所示，在一个实施例中，所述侧入式光源为单边侧入式光源，所述发光元件为LED(Light Emitting Diode，发光二极管)且数量为N个，所述区块与所述LED一一对应，每个LED用于点亮对应一个区块，如，LED1点亮区块BL1，LED2点亮区块BL2，...，LEDN点亮区块BLN。
如图3所示，在一个实施例中，所述侧入式光源为双边侧入式光源，所述发光元件为LED且数量为2N个，每两个LED与一个区块对应，每两个LED点亮对应一个区块，如，LED1A及LED1B点亮区块BL1，LED2A及LED2B点亮区块BL2，...，LEDNA及LEDNB点亮区块BLN。
侧入式光源使用的发光元件数量少，有利于产品减轻重量。
如图4所示，在一个实施例中，所述背光源为直下式光源。所述多个发光元件的数量为N*M个且呈N行、M列的矩阵排布，每一行的M个LED与一个区块对应，每一行的M个LED点亮对应一个区块，所述发光元件为LED。LED1A，LED1B，…，LED1M组成第一行LED背光单元LED1；LED2A， LED2B，…，LED2M组成第二行LED背光单元LED2；…，LEDNA，LEDNB，…，LEDNM组成第N行LED背光单元LEDN。每行LED背光单元用于点亮对应一个区块，如，LED1点亮区块BL1，LED2点亮区块BL2，...，LEDN点亮区块BLN。
直下式光源可以使得显示面板各区块的亮度更均匀。
所述发光元件还可以是CCFL(Cold Cathode Fluorescent Lamp，冷阴极荧光灯管)。
步骤S2，将每个发光元件的驱动电流由预设电流调节至第一驱动电流。
所述第一驱动电流为每个发光元件在显示面板的一个显示周期中，对应于第一驱动信号写入及第一镜片开启的驱动电流。所述预设电流为每个发光元件的驱动电流调节前的默认驱动电流。所述驱动电流用于驱动所述发光元件发光。
需要说明的是，在显示面板的一个显示周期中，每个发光元件的开启时间相等且均为预设时间，第一驱动信号写入显示面板，每个发光元件的开启时间达到预设时间后关闭。
步骤S3，将第二驱动信号写入显示面板，控制第二镜片开启及控制背光模块的每个发光元件开启。
步骤S4，将每个发光元件的驱动电流由预设电流调节至第二驱动电流。所述第二驱动电流为每个发光元件在显示面板的一个显示周期中，对应于第二驱动信号写入及第二镜片开启的驱动电流。
需要说明的是，在显示面板的一个显示周期中，第二驱动信号写入显示面板，每个发光元件的开启时间达到预设时间后关闭。
所述背光模块的多个发光元件同时开启或依次开启。在显示面板的一个 显示周期中，若对应于第一驱动信号写入显示面板及第一镜片开启，每个发光元件依次开启，则对应于第二驱动信号写入显示面板及第二镜片开启，每个发光元件依次开启。若对应于第一驱动信号写入显示面板及第一镜片开启，每个发光元件同步开启，则对应于第二驱动信号写入显示面板及第二镜片开启，每个发光元件同步开启。
请参阅图5，计算所述第一驱动电流及所述第二驱动电流包括步骤：
步骤S01，将第一驱动信号写入显示面板，控制第一镜片开启及控制背光模块的每个发光元件开启。
步骤S02，检测第一镜片对应于每个发光元件的第一眼镜穿透率、显示面板对应于每个发光元件的每个区块的第一面板穿透率及每个区块的背光平均亮度。
所述第一眼镜穿透率为所述第一镜片对应于第一驱动信号写入且对应于每个发光元件的眼镜穿透率。所述第一面板穿透率为显示面板的每个区块对应于第一驱动信号写入的面板穿透率。
显示面板各个区块透过眼镜的亮度为显示面板的穿透率、眼镜的穿透率与显示面板的背光平均亮度的乘积。显示面板的背光平均亮度即点亮显示面板的背光源的平均亮度，显示面板的亮度即显示面板显示的亮度。因此，可通过对显示面板的每个区块的背光平均亮度进行调节使得显示面板的每个区块的穿透率、每个区块对应的眼镜的穿透率与显示面板的每个区块的背光平均亮度的乘积相等，进而使得显示面板各个区块透过眼镜的亮度均匀。每个区块对应的眼镜的穿透率即每个区块对应的发光元件对应的眼镜的穿透率。每个区块的背光平均亮度即对应于每个区块的发光元件的平均亮度。每个区块的背光平均亮度可通过调节对应一个发光元件的驱动电流进行调节。
步骤S03，获取背光模块的每个发光元件的驱动电流，并存储为预设电流。
步骤S04，根据所述第一眼镜穿透率、每个区块的第一面板穿透率、每个区块的背光平均亮度及所述预设电流计算每个发光元件的第一驱动电流。
当已知所述第一眼镜穿透率、每个区块的第一面板穿透率及每个区块的背光平均亮度，以其中一个区块为参考区块，则可获知该区块透过第一镜片的亮度，以该区块透过第一镜片的亮度为参考亮度，若要实现显示面板各个区块透过第一镜片的亮度均匀，则显示面板其余区块透过第一镜片的亮度为参考亮度，由于所述第一眼镜穿透率及每个区块的第一面板穿透率已知，则可得到显示面板其余的区块与参考区块的背光平均亮度差值，由于区块的背光平均亮度与对应发光元件的驱动电流成正比例关系，因此，所述第一驱动电流＝预设电流*(1+平均亮度差值与对应一个区块的平均亮度的比值)。
步骤S05，将第二驱动信号写入显示面板，控制第二镜片开启及控制背光模块的每个发光元件开启。
步骤S06，检测第二镜片对应于每个发光元件的第二眼镜穿透率、显示面板对应于每个发光元件的每个区块的第二面板穿透率及每个区块的背光平均亮度。
所述第二眼镜穿透率为所述第二镜片对应于第二驱动信号写入且对应于每个发光元件的眼镜穿透率。所述第二面板穿透率为显示面板的每个区块对应于第二驱动信号写入的面板穿透率。
步骤S07，根据所述第二眼镜穿透率、每个区块的第二面板穿透率、每个区块的背光平均亮度及所述预设电流计算每个发光元件的第二驱动电流。
当已知所述第二眼镜穿透率、每个区块的第二面板穿透率及每个区块的 背光平均亮度，以其中一个区块为参考区块，则可获知该区块透过第二镜片的亮度，以该区块透过第二镜片的亮度为参考亮度，若要实现显示面板各个区块透过第二镜片的亮度均匀，则显示面板其余区块透过第二镜片的亮度为参考亮度，由于所述第二眼镜穿透率及每个区块的第二面板穿透率已知，则可得到显示面板其余的区块与参考区块的背光平均亮度差值，由于区块的背光平均亮度与对应发光元件的驱动电流成正比例关系，因此，所述第二驱动电流＝预设电流*(1+平均亮度差值与对应一个区块的平均亮度的比值)。
为了更好地展示本申请的方法，下面结合图6至图7做具体的说明。请参阅图6，背光源为侧入式光源且每个发光元件依次开启。每个发光元件的开启时间分别为t1，t2，...，tN，即对应的每个区块的点亮时间分别为t1，t2，...，tN，t1＝t2…＝tN＝t，其中，t为预设时间。曲线1为写入显示面板的第一驱动信号。曲线2为第一镜片对应于每个发光元件的第一眼镜穿透率，第一镜片对应于每个发光元件的第一眼镜穿透率分别为L_T_1，L_T_2，…，L_T_N。图6前半显示周期的“△”为每个区块对应于每个发光元件的开启时间的第一面板穿透率，每个区块对应于每个发光元件的开启时间的第一面板穿透率分别为OC_TL_1，OC_TL_2，…，OC_TL_N。
图6前半显示周期的长方形代表每个区块的背光平均亮度，区块BL1的平均亮度为BL_ave_1，区块BL2的平均亮度为BL_ave_2，...，区块BLN的平均亮度为BL_ave_N。由于背光模块的制造工艺存在差异，BL_ave_1≠BL_ave_2≠…≠BL_ave_N。此时，用户通过第一镜片看到的显示面板的每个区块的亮度BL_ave_1*OC_TL_1*L_T_1≠BL_ave_2*OC_TL_2*L_T_2≠…≠BL_ave_N*OC_TL_N*L_T_N，即显示面板各个区块透过第一镜片的亮度不均匀。
曲线3为写入显示面板的第二驱动信号。曲线4为第二镜片对应于每个发光元件的第二眼镜穿透率，第二镜片对应于每个发光元件的第二眼镜穿透率分别为R_T_1，R_T_2，…，R_T_N。图6后半显示周期的“△”为每个区块对应于每个发光元件的开启时间的第二面板穿透率，每个区块对应于每个发光元件的开启时间的第二面板穿透率分别为OC_TR_1，OC_TR_2，…，OC_TR_N。图6后半显示周期的长方形代表每个区块的背光平均亮度，区块BL1的平均亮度为BL_ave_1，区块BL2的平均亮度为BL_ave_2，...，区块BLN的平均亮度为BL_ave_N。由于背光模块的制造工艺存在差异，BL_ave_1≠BL_ave_2…..≠BL_ave_N。此时，用户通过第二镜片看到的显示面板的每个区块的亮度BL_ave_1*OC_TR_1*R_T_1≠BL_ave_2*OC_TR_2*R_T_2≠…≠BL_ave_N*OC_TR_N*R_T_N，即显示面板各个区块透过第二镜片的亮度不均匀。
请参阅图7，分别对每个发光元件的第一驱动电流及第二驱动电流进行调节，每个发光元件的开启时间分别为t1，t2，...，tN，即对应的每个区块的点亮时间分别为t1，t2，...，tN，且t1＝t2…＝tN＝t，其中，t为预设时间。对每个发光元件的第一驱动电流分别进行调节使得对应的区块BL1的平均亮度由BL_ave_1变为BL_ave_L1’，区块BL2的平均亮度由BL_ave_2变为BL_ave_L2’，...，区块BLN的平均亮度由BL_ave_N变为BL_ave_LN’。此时，用户通过第一镜片看到的显示面板的每个区块的亮度BL_ave_L1’*OC_TL_1*L_T_1＝BL_ave_L2’*OC_TL_2*L_T_2＝…＝BL_ave_LN’*OC_TL_N*L_T_N，即显示面板各个区块透过第一镜片的亮度均匀。
对每个发光元件的第二驱动电流分别进行调节使得对应的区块BL1的平均亮度由BL_ave_1变为BL_ave_R1’，区块BL2的平均亮度由BL_ave_2变 为BL_ave_R2’，...，区块BLN的平均亮度由BL_ave_N变为BL_ave_R N’。此时，用户通过第二镜片看到的显示面板的每个区块的亮度BL_ave_R1’*OC_TR_1*R_T_1＝BL_ave_R 2’*OC_TR_2*R_T_2＝…＝BL_ave_R N’*OC_TR_N*R_T_N，即显示面板各个区块透过第二镜片的亮度均匀。
综上所述，本申请的显示系统的亮度调节方法，通过调节背光模块的每个发光元件的第一驱动电流及第二驱动电流，进而调节每个发光元件对应的区块的背光平均亮度，使得显示面板的每个区块的穿透率、每个区块对应的眼镜的穿透率与显示面板的每个区块的背光平均亮度的乘积相等，从而使得显示面板各个区块透过眼镜的亮度均匀。
下面将结合图8，对本申请实施例提供的显示系统的亮度调节方法进行详细介绍。需要说明的是，图8所示的亮度调节系统，用于执行本申请图1所示实施例的方法，为了便于说明，仅示出了与本申请实施例相关的部分，具体技术细节未揭示的，请参照本申请图1所示的实施例。
请参照图8，所述亮度调节系统用于调节显示面板透过眼镜的亮度，所述显示面板由背光模块点亮，所述眼镜包括第一镜片及第二镜片，所述显示面板包括多个区块。所述亮度调节系统包括讯号驱动电路10、眼镜驱动电路20及控制电路30。所述讯号驱动电路10用于将第一驱动信号写入显示面板。所述眼镜驱动电路20用于控制第一镜片开启。所述控制电路30用于控制背光模块的每个发光元件开启。所述控制电路30还用于将每个发光元件的驱动电流由预设电流调节至第一驱动电流。
所述讯号驱动电路10还用于将第二驱动信号写入显示面板。所述眼镜驱动电路20还用于控制第二镜片开启。所述控制电路30还用于控制背光模块的每个发光元件开启。所述控制电路30还用于将每个发光元件的驱动电流由 预设电流调节至第二驱动电流。
所述亮度调节系统还包括第一检测器40、第二检测器50及第三检测器60。所述第一检测器40用于当所述讯号驱动电路10将第一驱动信号写入显示面板，所述眼镜驱动电路20控制第一镜片开启及所述控制电路30控制背光模块的每个发光元件开启时，检测第一镜片对应于每个发光元件的第一眼镜穿透率并传输至所述控制电路30。所述第二检测器50用于当所述讯号驱动电路10将第一驱动信号写入显示面板，所述眼镜驱动电路20控制第一镜片开启及所述控制电路30控制背光模块的每个发光元件开启时，检测显示面板对应于每个发光元件的每个区块的第一面板穿透率并传输至所述控制电路30。所述第三检测器60用于当所述讯号驱动电路10将第一驱动信号写入显示面板，所述眼镜驱动电路20控制第一镜片开启及所述控制电路30控制背光模块的每个发光元件开启时，检测每个区块的背光平均亮度并传输至所述控制电路30。
所述控制电路30还用于获取背光模块的每个发光元件的驱动电流，并存储为预设电流。所述控制电路30还用于根据所述第一眼镜穿透率、每个区块的第一面板穿透率、每个区块的背光平均亮度及所述预设时间计算每个发光元件的第一驱动电流。
所述第一检测器40还用于当所述讯号驱动电路10将第二驱动信号写入显示面板，所述眼镜驱动电路20控制第二镜片开启及所述控制电路30控制背光模块的每个发光元件开启时，检测第二镜片对应于每个发光元件的第二眼镜穿透率并传输至所述控制电路30。所述第二检测器50还用于当所述讯号驱动电路10将第二驱动信号写入显示面板，所述眼镜驱动电路20控制第二镜片开启及所述控制电路30控制背光模块的每个发光元件开启时，检测显 示面板对应于每个发光元件的每个区块的第二面板穿透率并传输至所述控制电路30。所述第三检测器60还用于当所述讯号驱动电路10将第二驱动信号写入显示面板，所述眼镜驱动电路20控制第二镜片开启及所述控制电路30控制背光模块的每个发光元件开启时，检测每个区块的背光平均亮度并传输至所述控制电路30。
所述控制电路30还用于根据所述第二眼镜穿透率、每个区块的第二面板穿透率、每个区块的背光平均亮度及所述预设电流计算每个发光元件的第二驱动电流。
本申请还提供一种显示系统，所述显示系统包括显示面板及上述的亮度调节系统。
本申请的亮度调节系统及显示系统，通过调节背光模块的每个发光元件的第一驱动电流及第二驱动电流，进而调节每个发光元件对应的区块的背光平均亮度，使得显示面板的每个区块的穿透率、每个区块对应的眼镜的穿透率与显示面板的每个区块的背光平均亮度的乘积相等，从而使得显示面板各个区块透过眼镜的亮度均匀。
本发明实施例的显示面板可以为以下任一种：液晶显示面板、OLED显示面板、QLED显示面板、扭曲向列(Twisted Nematic，TN)或超扭曲向列(Super Twisted Nematic，STN)型，平面转换(In-Plane Switching，IPS)型、垂直配向(Vertical Alignment，VA)型、曲面型面板、或其他显示面板。
以上所述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发明的几种实施方式，其描述较为具体和详 细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种显示系统的亮度调节方法，设置为调节显示面板透过眼镜的亮度，所述显示面板由背光模块点亮，所述眼镜包括第一镜片及第二镜片，所述显示面板包括多个区块，所述背光模块包括多个发光元件；所述显示系统的亮度调节方法包括以下步骤：
    将第一驱动信号写入显示面板，控制第一镜片开启及控制背光模块的每个发光元件开启；
    将每个发光元件的驱动电流由预设电流调节至第一驱动电流；
    将第二驱动信号写入显示面板，控制第二镜片开启及控制背光模块的每个发光元件开启；
    将每个发光元件的驱动电流由预设电流调节至第二驱动电流。
  2. 根据权利要求1所述的显示系统的亮度调节方法，其中，计算所述第一驱动电流包括步骤：
    将第一驱动信号写入显示面板，控制第一镜片开启及控制背光模块的每个发光元件开启；
    检测第一镜片对应于每个发光元件的第一眼镜穿透率、显示面板对应于每个发光元件的每个区块的第一面板穿透率及每个区块的背光平均亮度；
    获取背光模块的每个发光元件的驱动电流，并存储为预设电流；
    根据所述第一眼镜穿透率、每个区块的第一面板穿透率、每个区块的背光平均亮度及所述预设电流计算每个发光元件的第一驱动电流。
  3. 根据权利要求1所述的显示系统的亮度调节方法，其中，计算所述第二驱动电流包括步骤：
    将第二驱动信号写入显示面板，控制第二镜片开启及控制背光模块的每 个发光元件开启；
    检测第二镜片对应于每个发光元件的第二眼镜穿透率、显示面板对应于每个发光元件的每个区块的第二面板穿透率及每个区块的背光平均亮度；
    根据所述第二眼镜穿透率、每个区块的第二面板穿透率、每个区块的背光平均亮度及所述预设电流计算每个发光元件的第二驱动电流。
  4. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述控制电路控制背光模块的每个发光元件同时开启。
  5. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述控制电路控制背光模块的每个发光元件依次开启。
  6. 根据权利要求1所述的显示系统的亮度调节方法，其中，每个发光元件的开启时间相等。
  7. 一种亮度调节系统，设置为调节显示面板透过眼镜的亮度，所述显示面板由背光模块点亮，所述眼镜包括第一镜片及第二镜片，所述显示面板包括多个区块，所述背光模块包括多个发光元件；所述亮度调节系统包括讯号驱动电路、眼镜驱动电路及控制电路；
    所述讯号驱动电路设置为将第一驱动信号写入显示面板；所述眼镜驱动电路设置为控制第一镜片开启；所述控制电路设置为控制背光模块的每个发光元件开启；所述控制电路还设置为将每个发光元件的驱动电流由预设电流调节至第一驱动电流；
    所述讯号驱动电路还设置为将第二驱动信号写入显示面板；所述眼镜驱动电路还设置为控制第二镜片开启；所述控制电路还设置为控制背光模块的每个发光元件开启；所述控制电路还设置为将每个发光元件的驱动电流由预设电流调节至第二驱动电流。
  8. 根据权利要求7所述的亮度调节系统，其中，还包括第一检测器、第二检测器及第三检测器；
    所述第一检测器设置为当所述讯号驱动电路将第一驱动信号写入显示面板，所述眼镜驱动电路控制第一镜片开启及所述控制电路控制背光模块的每个发光元件开启时，检测第一镜片对应于每个发光元件的第一眼镜穿透率并传输至所述控制电路；
    所述第二检测器设置为当所述讯号驱动电路将第一驱动信号写入显示面板，所述眼镜驱动电路控制第一镜片开启及所述控制电路控制背光模块的每个发光元件开启时，检测显示面板对应于每个发光元件的每个区块的第一面板穿透率并传输至所述控制电路；
    所述第三检测器设置为当所述讯号驱动电路将第一驱动信号写入显示面板，所述眼镜驱动电路控制第一镜片开启及所述控制电路控制背光模块的每个发光元件开启时，检测每个区块的背光平均亮度并传输至所述控制电路；
    所述控制电路还设置为获取背光模块的每个发光元件的驱动电流，并存储为预设电流；
    所述控制电路还设置为根据所述第一眼镜穿透率、每个区块的第一面板穿透率、每个区块的背光平均亮度及所述预设电流计算显示面板每个区块的第一驱动电流。
  9. 根据权利要求7所述的亮度调节系统，其中，所述第一检测器还设置为当所述讯号驱动电路将第二驱动信号写入显示面板，所述眼镜驱动电路控制第二镜片开启及所述控制电路控制背光模块的每个发光元件开启时，检测第二镜片对应于每个发光元件的第二眼镜穿透率并传输至所述控制电路；
    所述第二检测器还设置为当所述讯号驱动电路将第二驱动信号写入显示 面板，所述眼镜驱动电路控制第二镜片开启及所述控制电路控制背光模块的每个发光元件开启时，检测显示面板对应于每个发光元件的每个区块的第二面板穿透率并传输至所述控制电路；
    所述第三检测器还设置为当所述讯号驱动电路将第二驱动信号写入显示面板，所述眼镜驱动电路控制第二镜片开启及所述控制电路控制背光模块的每个发光元件开启时，检测每个区块的背光平均亮度并传输至所述控制电路；
    所述控制电路还设置为根据所述第二眼镜穿透率、每个区块的第二面板穿透率、每个区块的背光平均亮度及所述预设电流计算显示面板每个区块的第二驱动电流。
  10. 根据权利要求7所述的亮度调节系统，其中，所述控制电路控制背光模块的每个发光元件同时开启。
  11. 根据权利要求7所述的亮度调节系统，其中，所述控制电路控制背光模块的每个发光元件依次开启。
  12. 根据权利要求7所述的亮度调节系统，其中，每个发光元件的开启时间相等。
  13. 根据权利要求7所述的亮度调节系统，其中，所述多个发光元件组成背光源，所述背光源为侧入式光源，所述侧入式光源为单边侧入式光源，所述发光元件的数量为N个，所述区块与所述发光元件一一对应，每个发光元件设置为点亮对应一个区块。
  14. 根据权利要求7所述的亮度调节系统，其中，所述多个发光元件组成背光源，所述背光源为侧入式光源，所述侧入式光源为双边侧入式光源，所述发光元件的数量为2N个，每两个发光元件与一个区块对应，每两个发光元件点亮对应一个区块。
  15. 根据权利要求7所述的亮度调节系统，其中，所述多个发光元件组成背光源，所述背光源为直下式光源，所述发光元件的数量为N*M个且呈N行、M列的矩阵排布，每一行的M个发光元件与一个区块对应，每一行的M个发光元件点亮对应一个区块。
  16. 根据权利要求7所述的亮度调节系统，其中，所述发光元件是冷阴极荧光灯管。
  17. 根据权利要求7所述的亮度调节系统，其中，所述发光元件是发光二极管。
  18. 一种显示系统，所述显示系统包括显示面板及权利要求7所述的亮度调节系统。
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