WO2020093546A1

WO2020093546A1 - Brightness adjustment method and system for display system, and display system

Info

Publication number: WO2020093546A1
Application number: PCT/CN2018/122328
Authority: WO
Inventors: 康志聪
Original assignee: 惠科股份有限公司
Priority date: 2018-11-07
Filing date: 2018-12-20
Publication date: 2020-05-14
Also published as: CN109166535B; CN109166535A

Abstract

A brightness adjustment method for a display system, comprising the steps of: writing a first drive signal into a display panel (S1); controlling a first lens and a backlight module to simultaneously start up, multiple light-emitting elements of the backlight module to sequentially start up, and the first lens and a light-emitting element of the backlight module that is started up first to simultaneously start up (S2); adjusting a first startup time of each light-emitting element (S3); writing a second drive signal into the display panel (S5); controlling a second lens and the backlight module to simultaneously start up, multiple light-emitting elements of the backlight module to sequentially start up, and the second lens and the light-emitting element of the backlight module that is started up first to simultaneously start up (S6); and adjusting a second startup time of each light-emitting element (S7).

Description

Brightness adjustment method of display system, brightness adjustment system and display system

This application requires the priority of the Chinese patent application submitted to the Chinese Patent Office on November 07, 2018, with the application number 201811320744.6 and the application name "Brightness Adjustment Method of Display System, Brightness Adjustment System, and Display System", all of which are approved by The reference is incorporated in this application.

Technical field

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.

Background technique

The statements here only provide background information related to the present application and do not necessarily constitute prior art.

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. Due to the physical characteristics of the liquid crystal, 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.

Summary of the invention

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:

Write the first driving signal to the display panel;

Controlling the first lens and the backlight module to be turned on at the same time, wherein a plurality of light emitting elements of the backlight module are turned on in sequence, and the first lens and the first turned on light emitting element of the backlight module are turned on simultaneously;

Adjust the first turn-on time of each light-emitting element;

Write the second driving signal to the display panel;

Controlling the second lens and the backlight module to be turned on at the same time, wherein the multiple light-emitting elements of the backlight module are turned on in sequence, and the second lens and the first light-emitting element of the backlight module are turned on at the same time;

Adjust the second turn-on time of each light-emitting element.

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;

Wherein, the multiple light-emitting elements of the backlight module are turned on in sequence, and the first lens and the first light-emitting element 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;

Wherein, the multiple light-emitting elements of the backlight module are turned on in sequence, and the second lens and the first light-emitting element 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 includes a display panel and the above-mentioned brightness adjustment system.

The details of one or more embodiments of the application are set forth in the drawings and description below. Other features, objects, and advantages of this application will become apparent from the description, drawings, and claims.

BRIEF DESCRIPTION

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;

3 is a corresponding diagram of a bilateral side-entry light source and a block in an embodiment;

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;

7 is a timing diagram of display panel transmittance, glasses transmittance, and backlight brightness in a 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;

9 is a timing diagram of display panel penetration rate, glasses penetration rate, and backlight brightness in one display cycle in another embodiment;

10 is a timing diagram of display panel penetration rate, eyeglass penetration rate, and backlight brightness in one display cycle in another embodiment;

11 is a timing diagram of display panel penetration rate, eyeglass penetration rate, and backlight brightness in one display cycle in another embodiment;

FIG. 12 is a timing diagram of display panel penetration rate, glasses penetration rate, and backlight brightness in one display cycle in another embodiment;

13 is a flowchart of a method for adjusting the brightness of a display system in another embodiment;

14 is a functional block diagram of a brightness adjustment system in an embodiment.

detailed description

Please refer to FIG. 1, which 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:

In step S1, the first driving signal is written into the display panel.

In one embodiment, the glasses are 3D liquid crystal glasses, and 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 in sequence. In one display period, the driving signal includes a first driving signal and a second driving signal.

As shown in FIG. 2, in one embodiment, 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, and the block Corresponding to the LEDs, each LED 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.

As shown in FIG. 3, in one embodiment, 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, and 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.

As shown in FIG. 4, in one embodiment, 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; LED2A, LED2B, ..., LED2M constitute the second row of LED backlight unit LED2; ..., LEDNA, LEDNB, ..., LEDNM constitute the Nth row of LED backlight unit LEDN. 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).

In 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 in sequence, and the first lens and the first turned on light emitting element 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, and 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. If 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. Therefore, 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.

In the present application, on the premise that the plurality of light-emitting elements of the backlight module are turned on in sequence, by first writing the driving signal to the display panel, and then controlling the first lens and the backlight module to turn on at the same time, the display panel has sufficient time to respond to a stable and tending 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 .

In 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.

It should be noted that, in a display period of the display panel, 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.

In step S4, the turn-on sequence of the corresponding light-emitting elements is controlled according to the average brightness of the backlight of each block.

In the initial stage of opening the glasses, the penetration rate of the glasses is relatively small. With the increase of the opening time, the penetration rate of the glasses gradually increases and tends to be stable.

In an embodiment, each light-emitting element of the backlight module is controlled to be turned on in order of the average backlight brightness of the corresponding block from high to low.

The application also starts by turning on the light-emitting element corresponding to the block with the highest average brightness of the backlight when the penetration rate of the glasses is small, and according to the backlight of the corresponding block during the process of the penetration rate of the glasses gradually increasing to a stable The average brightness is turned on in order from high to low, so that the transmittance of each block of the display panel and the transmittance of the glasses corresponding to each block are equal to the product of the average brightness of the backlight of each block of the display panel.

Step S5: Write the second driving signal to the display panel.

In step S6, the second 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 in sequence, and the second lens and the first turned on light emitting element of the backlight module are turned on simultaneously.

In step S7, the second turn-on time of each light-emitting element is adjusted.

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.

It should be noted that, in one display period of the display panel, 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.

In step S8, the turn-on sequence of the corresponding light-emitting elements is controlled according to the average brightness of the backlight of each block.

In order to better demonstrate the method of the present application, specific description will be made below with reference to FIGS. 5 to 12. Please refer to FIG. 5, the turn-on time of each light-emitting element is t1, t2, ..., tN, that is, the corresponding lighting time of each block is t1, t2, ..., tN, t1 = t2 … = TN = t, where t is a preset time. 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, ..., and 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. At this time, the brightness of each block of the display panel that the user sees through the first lens 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, that is, each block of the display panel passes through the first The brightness of the lens is uneven.

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 rectangle in the second 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, ..., and 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. At this time, the brightness of each block of the display panel seen by the user through the second lens 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, that is, each block of the display panel passes through the second The brightness of the lens is uneven.

Please refer to FIG. 6 to FIG. 9, by first writing the driving signal to the display panel, and then controlling the first lens and the backlight module to be turned on at the same time, 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. Corresponding to the first turn-on time of each light-emitting element, 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 glasses transmittance of L_T_1, L_T_2, ..., L_T_N. At this time, the brightness of each block of the display panel that the user sees through the first lens 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, that is, each of the display panels The brightness of the block through the first lens is uniform.

Corresponding to the second turn-on time of each light-emitting element, 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 eyeglasses corresponding to each light emitting element have a second eyeglass penetration rate of R_T_1, R_T_2, ..., R_T_N. 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 '. At this time, the brightness of each block of the display panel that the user sees through the second lens BL_ave_R1 '* OC_TR_1' * R_T_1 = BL_ave_R2 '* OC_TR_2' * R_T_2 = ... = BL_ave_R’N '* OC_TR_N' * R_T_N, that is, display The brightness of each section of the panel through the second lens is uniform.

Please refer to FIG. 10 to FIG. 12, the application also turns on the light-emitting element corresponding to the block with the highest average brightness when the penetration rate of the glasses is small, and gradually increases the penetration rate of the glasses to a stable process. Turn on the rest of the light-emitting elements in the order of the average backlight brightness of the corresponding block from high to low. As shown in the figure, turn on the light-emitting element corresponding to the block BL2 with the highest average brightness of the backlight, and then turn on the second highest average brightness of the backlight The light-emitting elements corresponding to the block BL1, ..., and finally the light-emitting elements corresponding to the block BLN with the lowest average brightness of the backlight are turned on, so that the brightness of each block of the display panel through the liquid crystal glasses is uniform.

Please refer to FIG. 13, before step S1, there are steps:

In step S01, the first driving signal is written into the display panel, and each light-emitting element of the backlight module is controlled to turn on in turn.

Step S02, detecting the average brightness of the backlight of each block.

Step S03: Sort the average backlight brightness of each block.

In summary, the brightness adjustment method of the display system of the present application, on the premise that the plurality of light-emitting elements of the backlight module are turned on in sequence, first writes the driving signal to the display panel, and then controls the first lens and the backlight module at the same time Turn on, the display panel response 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 backlight of each block of the display panel are average The product of brightness tends to be equal; 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 transmittance of each block of the display panel, the corresponding The penetration rate of the 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 tends to be uniform. In addition, in this application, by first turning on the light-emitting element corresponding to the block with the highest average brightness when the penetration rate of the glasses is small, and gradually increasing the penetration rate of the glasses to a stable process, according to the corresponding block The average brightness of the backlight turns on the rest of the light-emitting elements in order from high to low, so that 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 .

The brightness adjustment method of the display system provided by the embodiment of the present application will be described in detail below in conjunction with FIG. 14. It should be noted that the brightness adjustment system shown in FIG. 14 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.

Referring to FIG. 14, 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 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 in sequence, and the first lens and the first light-emitting element 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. The plurality of light-emitting elements of the backlight module are turned on in sequence, and the second lens and the first light-emitting element of the backlight module are turned on at the same time. The control circuit 30 is also used to adjust the second turn-on time of each light-emitting element. The control circuit 30 is also used to control the turn-on sequence of the corresponding light-emitting elements according to the average brightness of the backlight of each block.

The brightness adjustment system also includes a brightness detector 40. The brightness detector 40 is used to detect the average backlight of each block when the signal driving circuit 10 writes the first driving signal to the display panel, and the control circuit 30 controls each light-emitting element of the backlight module to turn on sequentially The brightness is transmitted to the control circuit 30. The control circuit 30 is also used to sort the average backlight brightness of each block. Further, the control circuit 30 is also used to control each light-emitting element of the backlight module to turn on in order of the average backlight brightness of the corresponding block from high to low.

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.

It should be noted that the explanation of the brightness adjustment method of the display system in the foregoing embodiment is also applicable to the brightness adjustment system of this embodiment, and the implementation principles are similar, and will not be repeated here.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To simplify the description, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered within the scope of this description.

The above-mentioned embodiments only express several embodiments of the present invention, and their descriptions are more specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that, for a person of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all fall within the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

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:

Write the first driving signal to the display panel;

Controlling the first lens and the backlight module to be turned on at the same time, wherein a plurality of light emitting elements of the backlight module are turned on in sequence, and the first lens and the first turned on light emitting element of the backlight module are turned on simultaneously;

Adjust the first turn-on time of each light-emitting element;

Write the second driving signal to the display panel;

Controlling the second lens and the backlight module to be turned on at the same time, wherein the multiple light-emitting elements of the backlight module are turned on in sequence, and the second lens and the first light-emitting element of the backlight module are turned on at the same time;

Adjust the second turn-on time of each light-emitting element.
The method for adjusting the brightness of a display system according to claim 1, wherein after the step of adjusting the first turn-on time of each light-emitting element, the method further comprises:

According to the average brightness of the backlight of each block, the turn-on sequence of the corresponding light-emitting elements is controlled.
The method for adjusting the brightness of a display system according to claim 1, wherein after the step of adjusting the second turn-on time of each light-emitting element, the method further comprises:

According to the average brightness of the backlight of each block, the turn-on sequence of the corresponding light-emitting elements is controlled.
The brightness adjustment method of the display system according to claim 1, wherein the step of writing the first driving signal into the display panel includes the steps of:

Write the first driving signal to the display panel and control each light-emitting element of the backlight module to turn on in turn;

Detect the average backlight brightness of each block;

Sort the average backlight brightness of each block.
The brightness adjustment method of the display system according to claim 4, wherein each light-emitting element of the backlight module is controlled to be turned on in order of the average backlight brightness of the corresponding block from high to low.
The brightness adjustment method of the display system according to claim 1, wherein the turn-on time of each light-emitting element is equal.
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;

Wherein, the multiple light-emitting elements of the backlight module are turned on in sequence, and the first lens and the first light-emitting element 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;

Wherein, the multiple light-emitting elements of the backlight module are turned on in sequence, and the second lens and the first light-emitting element 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.
The brightness adjustment system according to claim 7, wherein the control circuit is further configured to control the turn-on sequence of the corresponding light-emitting elements according to the average backlight brightness of each block.
The brightness adjustment system according to claim 7, further comprising a brightness detector; the brightness detector is arranged to write the first drive signal to the display panel when the signal driving circuit is written, and the control circuit controls the backlight module When each light-emitting element is turned on in sequence, the average brightness of the backlight of each block is detected and transmitted to the control circuit; the control circuit is further configured to sort the average brightness of the backlight of each block.
The brightness adjustment system according to claim 9, wherein the control circuit is further configured to control each light-emitting element of the backlight module to turn on in order of the average backlight brightness of its corresponding block from high to low.
The brightness adjustment system according to claim 7, wherein the turn-on time of each light-emitting element is equal.
The brightness adjustment system according to claim 7, wherein the plurality of light-emitting elements constitute a backlight source, the backlight source is a single-sided side-entry light source, the number of the light-emitting elements is N, and the block is The light emitting elements correspond to each other one by one, and each light emitting element is set to light up corresponding to a block.
The brightness adjustment system according to claim 7, wherein the plurality of light-emitting elements constitute a backlight source, the backlight source is a bilateral side-entry light source, the number of the light-emitting elements is 2N, each two One block corresponds, and every two light-emitting elements light up corresponding to one block.
The brightness adjustment system according to claim 7, wherein the plurality of light-emitting elements constitute a backlight, the backlight is a direct light source, and the number of the plurality of light-emitting elements is N * M in N rows, The M columns are arranged in a matrix, M light-emitting elements in each row correspond to one block, and M light-emitting elements in each row light up corresponding to one block.
The brightness adjustment system according to claim 7, wherein the light emitting element is a cold cathode fluorescent lamp tube.
The brightness adjustment system according to claim 7, wherein the light emitting element is a light emitting diode.
A display system comprising a display panel and the brightness adjustment system of claim 7.