WO2020093544A1 - 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
WO2020093544A1
WO2020093544A1 PCT/CN2018/122281 CN2018122281W WO2020093544A1 WO 2020093544 A1 WO2020093544 A1 WO 2020093544A1 CN 2018122281 W CN2018122281 W CN 2018122281W WO 2020093544 A1 WO2020093544 A1 WO 2020093544A1
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Prior art keywords
light
emitting elements
display panel
block
lens
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PCT/CN2018/122281
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English (en)
French (fr)
Inventor
康志聪
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惠科股份有限公司
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Priority to US17/272,933 priority Critical patent/US11543701B2/en
Publication of WO2020093544A1 publication Critical patent/WO2020093544A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133601—Illuminating devices for spatial active dimming
    • G—PHYSICS
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    • 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
    • G09G3/36—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 using liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
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    • 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
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
    • G—PHYSICS
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    • 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
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source

Definitions

  • 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 equal.
  • the plurality of light-emitting elements constitute a backlight
  • the backlight is a single-sided side-entry light source
  • the number of the light-emitting elements is N
  • the block and the light-emitting element are one by one
  • each light-emitting element is set to light up corresponding to a block.
  • the plurality of light-emitting elements constitute a backlight
  • the backlight is a bilateral side-entry light source
  • the number of the light-emitting elements is 2N
  • each two light-emitting elements corresponds to a block, each Two light-emitting elements light up corresponding to one block.
  • the plurality of light-emitting elements constitute a backlight
  • the backlight is a direct light source
  • the number of the light-emitting elements is N * M, arranged in a matrix of N rows and M columns, each The M light-emitting elements in one row correspond to one block, and the M light-emitting elements in each row light up corresponding to one block.
  • the light-emitting element is a light-emitting diode.
  • the light emitting element is a cold cathode fluorescent lamp tube.
  • the glasses are 3D glasses.
  • the display panel is a 3D display panel.
  • 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 the backlight module to turn on; the control circuit is also configured to pass through The glasses driving circuit controls the first lens and the backlight module to be turned on simultaneously;
  • the multiple light-emitting elements of the backlight module are turned on simultaneously, and the first lens and the multiple light-emitting elements of the backlight module are turned on simultaneously;
  • the control circuit is also set to adjust the first turn-on time of each light-emitting element
  • the signal driving circuit is further configured to write a second driving signal to the display panel;
  • the glasses driving circuit is configured to control the second lens to turn on;
  • the control circuit is also configured to control the second lens and the backlight through the glasses driving circuit
  • the modules are turned on at the same time;
  • the multiple light-emitting elements of the backlight module are turned on simultaneously, and the second lens and the multiple light-emitting elements of the backlight module are turned on simultaneously;
  • the control circuit is also configured to adjust the second turn-on time of each light-emitting element.
  • a display system including 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
  • FIG. 5 is a timing diagram of display panel transmittance, glasses transmittance, and backlight brightness in one display cycle in one embodiment
  • 6 is a timing diagram of display panel penetration rate, eyeglass penetration rate, and backlight brightness in one display cycle in another embodiment
  • FIG. 7 is a timing diagram of display panel transmittance, glasses transmittance, and backlight brightness in one display cycle in another embodiment
  • 8 is a timing diagram of display panel penetration rate, eyeglass penetration rate, and backlight brightness in one display cycle in another embodiment
  • FIG. 9 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 constitute a backlight source.
  • the brightness adjustment method of the display system includes the following steps:
  • step S1 the first driving signal is written into the display panel.
  • 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.
  • the driving signal includes a first driving signal and a second driving signal.
  • 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 the first lens and the backlight module are controlled to be turned on at the same time, wherein the plurality of light-emitting elements of the backlight module are turned on at the same time, and the first lens and the plurality of light-emitting elements of the backlight module are turned on at the same time.
  • the brightness of each block of the display panel through the liquid crystal glasses is the product of the transmittance of the display panel, the transmittance 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. Due to the physical characteristics of the liquid crystal response of the display panel and glasses, both the display panel and the glasses need to be driven for a certain time to output a stable penetration rate and the display panel reaches a stable penetration rate output time and the glasses reach a stable penetration rate output The time is inconsistent.
  • the driving signal is written to the display panel and the glasses are turned on in synchronization with the backlight module, 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 There is a difference in the product of the average brightness of the backlight.
  • the sequence of the display panel, the opening of the glasses, and the opening of the backlight module can be adjusted by the driving signal, so that the penetration rate of each block of the display panel tends to be equal, thereby allowing the penetration of each block of the display panel
  • the product of the rate, the penetration rate of the glasses corresponding to each block, and the average brightness of the backlight of each block of the display panel tends to be equal, so that the brightness of each block of the display panel through the liquid crystal glasses tends to be uniform.
  • the average brightness of the backlight of each block corresponds to the average brightness of the light-emitting elements of each block.
  • 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 display panel has sufficient time to respond to a stable and trending For an equal penetration rate, at this time, 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 tends to be equal .
  • step S3 the first turn-on time of each light-emitting element is adjusted.
  • the first turn-on time is the turn-on time of each light-emitting element in a display period of the display panel, corresponding to the writing of the first driving signal and the turning on of the first lens.
  • This application also adjusts the turn-on time of each light-emitting element, thereby adjusting the average brightness of the backlight of each block of the display panel, so that the penetration rate of each block of the display panel, the penetration of the glasses corresponding to each block The rate is equal to the product of the average brightness of the backlight of each block of the display panel, so that the brightness of each block of the display panel through the liquid crystal glasses tends to be uniform.
  • the first driving signal is written into the display panel, and the turn-on time of each light-emitting element reaches the corresponding first turn-on time and then turns off.
  • step S4 the second driving signal is written into the display panel.
  • Step S5 Control the second lens and the backlight module to be turned on at the same time, wherein the plurality of light emitting elements of the backlight module are turned on at the same time, and the second lens and the plurality of light emitting elements of the backlight module are turned on at the same time.
  • Step S6 Adjust the second turn-on time of each light-emitting element.
  • the second turn-on time is the turn-on time of each light-emitting element in a display period of the display panel, corresponding to the writing of the second driving signal and the turning on of the second lens.
  • the second driving signal is written into the display panel, and the turn-on time of each light-emitting element reaches the corresponding second turn-on time and then turns off.
  • the driving current of each light-emitting element is equal.
  • the driving current is used to drive the light emitting element to emit light.
  • 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 " ⁇ " of the display cycle in the first half of FIG. 5 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. 5 represents the average backlight brightness of each block.
  • 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.
  • 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. 5 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 display panel has enough time to respond to reach a stable and tending to equal transmittance, and adjust each The turn-on time of each light-emitting element, and then adjust the average brightness of each block of the display panel, the turn-on time of each light-emitting element is adjusted from t1, t2, ..., tN to the first turn-on time tL1, tL2, .. ., TLN and the second turn-on time tR1, tR2, ..., tRN.
  • the average brightness of block BL1 changes from BL_ave_1 to BL_ave_L1 '
  • the average brightness of block BL2 changes from BL_ave_2 to BL_ave_L2'
  • ... the average brightness of block BLN changes from BL_ave_N Becomes BL_ave_LN '.
  • the first panel transmittance corresponding to the turn-on time of each light-emitting element in each block changes from OC_TL_1, OC_TL_2, ..., OC_TL_N to OC_TL_1 ', OC_TL_2', ..., OC_TL_N ', OC_TL_1' ⁇ OC_TL_2' ... ⁇ OC_TL_N '.
  • the first glasses corresponding to each light-emitting element have a first glass transmittance of L_T.
  • the average brightness of 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 average brightness of block BLN changes from BL_ave_N becomes BL_ave_R'N '
  • the second lens corresponds to each light emitting element, and the second glasses transmittance is R_T.
  • the second panel transmittance corresponding to the turn-on time of each light-emitting element in each block changes from OC_TR_1, OC_TR_2, ..., OC_TR_N to OC_TR_1 ', OC_TR_2', ..., OC_TR_N ', OC_TR_1' ⁇ OC_TR_2' ... ⁇ OC_TR_N '.
  • the brightness of each section of the panel through the second lens is uniform.
  • the drive signal is written into the display panel first, and then the first lens and the backlight module are controlled simultaneously Turn on, the response of the display panel and the glasses reaches a stable and tends to be equal to the penetration rate, the penetration rate of each block of the display panel, the penetration rate of the glasses corresponding to each block and the The product of the average brightness of the backlight tends to be equal; then by adjusting the turn-on time of each light-emitting element, the average brightness of each block of the display panel is adjusted, so that the penetration rate of each block of the display panel, each block The penetration rate of the corresponding glasses is equal to the product of the average brightness of the backlight of each block of the display panel, so that the brightness of each block of the display panel through the liquid crystal glasses 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. 9. It should be noted that the brightness adjustment system shown in FIG. 9 is used to perform the method of the embodiment shown in FIG. 1 of the present application. For convenience 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, and the display panel includes a plurality of Block, the backlight module includes a plurality of light-emitting elements, and the plurality of light-emitting elements constitute a backlight source.
  • 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 first lens to turn on; the control circuit 30 is used to control the backlight module to turn on.
  • the control circuit 30 is also used to control the first lens and the backlight module to be turned on at the same time through the glasses driving circuit 20. Wherein, the multiple light-emitting elements of the backlight module are turned on simultaneously, and the first lens and the multiple light-emitting elements of the backlight module are turned on simultaneously.
  • the control circuit 30 is also used to adjust the first turn-on time of each light-emitting element.
  • the signal driving circuit 10 is also used to write the second driving signal to the display panel.
  • the glasses driving circuit 20 is used to control the opening of the second lens.
  • the control circuit 30 is also used to control the second lens and the backlight module to be turned on at the same time through the glasses driving circuit 20. Wherein, the multiple light-emitting elements of the backlight module are turned on simultaneously, and the second lens and the multiple light-emitting elements of the backlight module are turned on simultaneously.
  • the control circuit 30 is also used to adjust the second turn-on time of each light-emitting element.
  • the drive signal is written into the display panel first, and then the first lens and the backlight module are controlled to turn on at the same time, and the response of the display panel and the glasses reaches
  • the penetration rate is stable and tends to be equal.
  • 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 tends to be equal ;
  • the present application also provides a display system, which includes a display panel and the above-mentioned brightness adjustment system.
  • the display panel in the embodiment of the present application 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，包括步骤：将第一驱动信号写入显示面板（S1）；控制第一镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启（S2）；调节每个发光元件的第一开启时间（S3）；将第二驱动信号写入显示面板（S4）；控制第二镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启（S5）；调节每个发光元件的第二开启时间（S6）。

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201811319854.0、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；
控制第一镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启；
调节每个发光元件的第一开启时间；
将第二驱动信号写入显示面板；
控制第二镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启；
调节每个发光元件的第二开启时间。
在其中一个实施例中，每个发光元件的驱动电流相等。
在其中一个实施例中，所述多个发光元件组成背光源，所述背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。
在其中一个实施例中，所述多个发光元件组成背光源，所述背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。
在其中一个实施例中，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。
在其中一个实施例中，所述发光元件为发光二极管。
在其中一个实施例中，所述发光元件为冷阴极荧光灯管。
在其中一个实施例中，所述眼镜为3D眼镜。
在其中一个实施例中，所述显示面板为3D显示面板。
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开启；所述控制电路还设置为通过所述眼镜驱动电路控制第一镜片及背光模块同时开启；
其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启；
所述控制电路还设置为调节每个发光元件的第一开启时间；
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；所述眼镜驱动电路设置为控制第二镜片开启；所述控制电路还设置为通过所述眼镜驱动电路控制第二镜片及背光模块同时开启；
其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启；
所述控制电路还设置为调节每个发光元件的第二开启时间。
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
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请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申请的一些实施例，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。
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6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9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。
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。
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，控制第一镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启。
显示面板各个区块透过液晶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。显示面板及眼镜由于液晶响应的物理特性，显示面板及眼镜均需要驱动达到一定的时间才能输出稳定的穿透率且显示面板达到稳定的穿透率输出的时间与眼镜达到稳定的穿透率输出的时间不一致，若驱动信号写入显示面板及眼镜的开启同步于背光模块的开启，则会使得显示面板的各区块的穿透率、眼镜对 应于各区块的穿透率与显示面板的各区块的背光平均亮度的乘积存在差异。因此，可通过驱动信号写入显示面板、眼镜的开启及背光模块的开启的顺序的调整，使得显示面板的各区块的穿透率趋于相等，进而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趋于相等，从而使得显示面板各个区块透过液晶眼镜的亮度趋于均匀。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。
本申请在所述背光模块的多个发光元件同时开启的前提下，通过先将驱动信号写入显示面板，再控制第一镜片及背光模块同时开启，显示面板有足够的时间响应达到稳定且趋于相等的穿透率，此时，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趋于相等。
步骤S3，调节每个发光元件的第一开启时间。
所述第一开启时间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开启时间。
本申请还通过调节每个发光元件的开启时间，进而调节显示面板的每个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液晶眼镜的亮度趋于均匀。
需要说明的是，在显示面板的一个显示周期中，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对应的第一开启时间后关闭。
步骤S4，将第二驱动信号写入显示面板。
步骤S5，控制第二镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启。
步骤S6，调节每个发光元件的第二开启时间。
所述第二开启时间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开启时间。
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对应的第二开启时间后关闭。
每个发光元件的驱动电流相等。所述驱动电流用于驱动所述发光元件发光。
为了更好地展现本申请的方法，下面结合图5至图8做具体的说明。请参阅图5，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5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5前半显示周期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，用户通过第一镜片观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5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5后半显示周期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，用户通过第二镜片观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6至图8，通过先将驱动信号写入显示面板，再控制第一镜片及背光模块同时开启，显示面板有足够的时间响应达到稳定且趋于相等的穿透率，并调节每个发光元件的开启时间，进而调节显示面板的每个区块的平均亮度，每个发光元件的开启时间分别由t1，t2，...，tN调节至第一开启时间tL1，tL2，...，tLN及第二开启时间tR1，tR2，...，tRN。对应于每个发光元件的第一开启时间，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’。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由OC_TL_1，OC_TL_2，…，OC_TL_N变为 OC_TL_1’，OC_TL_2’，…，OC_TL_N’，OC_TL_1’≈OC_TL_2’…≈OC_TL_N’。第一镜片对应于每个发光元件的第一眼镜穿透率均为L_T。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＝BL_ave_L2’*OC_TL_2’*L_T＝…＝BL_ave_LN’*OC_TL_N’*L_T，即显示面板各个区块透过第一镜片的亮度均匀。
对应于每个发光元件的第二开启时间，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_R 2’，...，区块BLN的平均亮度由BL_ave_N变为BL_ave_R N’。第二镜片对应于每个发光元件的第二眼镜穿透率均为R_T。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由OC_TR_1，OC_TR_2，…，OC_TR_N变为OC_TR_1’，OC_TR_2’，…，OC_TR_N’，OC_TR_1’≈OC_TR_2’…≈OC_TR_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＝BL_ave_R 2’*OC_TR_2’*R_T＝…＝BL_ave_R N’*OC_TR_N’*R_T，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，在所述背光模块的多个发光元件同时开启的前提下，通过先将驱动信号写入显示面板，再控制第一镜片及背光模块同时开启，显示面板及眼镜响应达到稳定且趋于相等的穿透率，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趋于相等；再通过调节每个发光元件的开启时间，进而调节显示面板的每个区块的平均亮度，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液晶眼镜的亮度均匀。
下面将结合图9，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9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9，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用于控制背光模块开启。所述控制电路30还用于通过所述眼镜驱动电路20控制第一镜片及背光模块同时开启。其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启。所述控制电路30还用于调节每个发光元件的第一开启时间。
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用于控制第二镜片开启。所述控制电路30还用于通过所述眼镜驱动电路20控制第二镜片及背光模块同时开启。其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启。所述控制电路30还用于调节每个发光元件的第二开启时间。
本申请的亮度调节系统，在所述背光模块的多个发光元件同时开启的前提下，通过先将驱动信号写入显示面板，再控制第一镜片及背光模块同时开启，显示面板及眼镜响应达到稳定且趋于相等的穿透率，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 均亮度的乘积趋于相等；再通过调节每个发光元件的开启时间，进而调节显示面板的每个区块的平均亮度，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液晶眼镜的亮度均匀。
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 (19)

  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；
    控制第一镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启；
    调节每个发光元件的第一开启时间；
    将第二驱动信号写入显示面板；
    控制第二镜片及背光模块同时开启，其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启；
    调节每个发光元件的第二开启时间。
  2. 根据权利要求1所述的显示系统的亮度调节方法，其中，每个发光元件的驱动电流相等。
  3. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述多个发光元件组成背光源，所述背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。
  4. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述多个发光元件组成背光源，所述背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。
  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。
  6. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述发光元件为发光二极管。
  7. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述发光元件为冷阴极荧光灯管。
  8. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述眼镜为3D眼镜。
  9. 根据权利要求1所述的显示系统的亮度调节方法，其中，所述显示面板为3D显示面板。
  10. 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开启；所述控制电路还设置为通过所述眼镜驱动电路控制第一镜片及背光模块同时开启；
    其中，背光模块的多个发光元件同时开启，第一镜片与背光模块的多个发光元件同时开启；
    所述控制电路还设置为调节每个发光元件的第一开启时间；
    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 动电路设置为控制第二镜片开启；所述控制电路还设置为通过所述眼镜驱动电路控制第二镜片及背光模块同时开启；
    其中，背光模块的多个发光元件同时开启，第二镜片与背光模块的多个发光元件同时开启；
    所述控制电路还设置为调节每个发光元件的第二开启时间。
  11. 根据权利要求10所述的亮度调节系统，其中，每个发光元件的驱动电流相等。
  12. 根据权利要求10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。
  13. 根据权利要求10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。
  14. 根据权利要求10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。
  15. 根据权利要求10所述的亮度调节系统，其中，所述发光元件为发光二极管。
  16. 根据权利要求10所述的亮度调节系统，其中，所述发光元件为冷阴极荧光灯管。
  17. 根据权利要求10所述的亮度调节系统，其中，所述眼镜为3D眼镜。
  18. 根据权利要求10所述的亮度调节系统，其中，所述显示面板为3D 显示面板。
  19. 一种显示系统，所述显示系统包括显示面板及权利要求10所述的亮度调节系统。
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