Display panel edge brightness adjusting method, display device and display terminal

Abstract

The invention discloses a display panel edge brightness adjusting method, a display device and a display terminal, which are applied to a display panel driven by using a progressive scanning method, and the display panel at least comprises a light source array formed by arranging a plurality of display unit arrays and a driving chip. Comprising the following steps: respectively configuring a supplementary display unit at the most front end and the most tail end of each row of a light source array in a display area, so that the edge brightness of the front end and the tail end of each row of the light source array in the display area is consistent with that of the middle; time division multiplexing driving is added to the first row and the last row of the light source array in the display area respectively, so that the brightness of the first row and the last row of the light source array in the display area is consistent with that of the middle. The edge brightness of the display panel can be improved, and the brightness of the display area of the display panel is uniform.

Description

Technical Field

[0001] The present invention relates to the field of display driving technology, and in particular to a display panel edge brightness adjustment method, a display device and a display terminal. Background Art

[0002] In the technical field of display driving, in recent years, local dimming control technology has been gradually developed for the backlight module of liquid crystal display to adjust the brightness of each light-emitting area. Figure 1 and Figure 2 As shown, the edge of the existing display panel is relatively dark. Specifically, compared with the light in the middle, the surrounding lights lack the accumulation of the surrounding lights, so that the brightness of the light at the edge is relatively dark. Summary of the invention

[0003] In view of the above-mentioned shortcomings currently existing, the present invention provides a display panel edge brightness adjustment method, a display device and a display terminal, which can improve the edge brightness of the display panel and make the brightness of the display area of ​​the display panel uniform.

[0004] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0005] A method for adjusting the edge brightness of a display panel is applied to a display panel driven by a line-by-line scanning method, wherein the display panel at least comprises a light source array composed of a plurality of display unit arrays and a driving chip, and comprises the following steps: a supplementary display unit is respectively arranged at the front end and the end end of each row of the light source array in the display area, so that the edge brightness of the front end and the end end of each row of the source array in the display area is consistent with the middle; and a time-division multiplexing drive is respectively added to the first row and the last row of the light source array in the display area, so that the brightness of the first row and the last row of the light source array in the display area is consistent with the middle.

[0006] According to one aspect of the present invention, the brightness of the supplementary display unit is k times the brightness of its adjacent display unit, where k is a first preset coefficient.

[0007] According to one aspect of the present invention, the coefficient k is a preset coefficient set according to the brightness difference between the frontmost or the endmost display unit and the middle display unit in each row of the light source array.

[0008] According to one aspect of the present invention, the brightness of the first row and the last row of the light source array when driven by the added time-division multiplexing drive is m times that of the original drive, where m is a second preset coefficient.

[0009] According to one aspect of the present invention, the coefficient m is a preset coefficient set according to the brightness difference between the display units in the first row or the last row and the middle display units of the light source array.

[0010] According to one aspect of the present invention, the time-division multiplexing driving added to the first row and the last row of the light source array is driven simultaneously by a driving chip.

[0011] According to one aspect of the present invention, the display unit is a light emitting diode.

[0012] A display device comprises: a display panel, wherein the display panel comprises a light source array composed of a plurality of display unit arrays, a driving chip and a plurality of scanning lines, wherein the display units are connected to the driving chip via scanning lines, and a supplementary display unit is respectively arranged at the front end and the end end of each row of the light source array, so that the brightness of the front end and the end edge of each row of the display area source array is consistent with the middle; and the first row and the last row of the light source array are respectively arranged with an added time-division multiplexing drive, so that the brightness of the first row and the last row of the display area light source array is consistent with the middle.

[0013] According to one aspect of the present invention, the display unit is a light emitting diode.

[0014] A display terminal comprises the display device as described above.

[0015] The advantages of the implementation of the present invention are as follows: by adding a column of supplementary display units on the left and right sides, when driven, the brightness of the supplementary display units is a factor of k times that of the left or right display units, so that the brightness on both sides of the left and right edges is increased to be approximately equal to the brightness in the middle.

[0016] By adding a time-division multiplexing drive to the top row and the bottom row, when the time-division multiplexing drive is added, the brightness value is m times (m is a coefficient) of the original driving value, so that the brightness on both sides of the upper and lower edges is increased to be equal to the brightness in the middle. The brightness of the edge of the display panel can be increased, so that the brightness of the display area of ​​the display panel is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a conventional display panel described in the background technology of the present invention;

[0019] Figure 2 A schematic diagram of a display test of an existing display panel described in the background technology of the present invention;

[0020] Figure 3 It is a schematic diagram of a display panel according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1

[0023] like Figure 3 As shown, a method for adjusting the edge brightness of a display panel is applied to a display panel driven by a line-by-line scanning method, wherein the display panel at least includes a light source array composed of a plurality of display unit arrays and a driving chip, and includes the following steps: a supplementary display unit is respectively arranged at the front end and the end end of each row of the light source array in the display area, so that the edge brightness of the front end and the end of each row of the source array in the display area is consistent with the middle; and a time-division multiplexing drive is added to the first row and the last row of the light source array in the display area, so that the brightness of the first row and the last row of the light source array in the display area is consistent with the middle.

[0024] In practical applications, the brightness of the supplementary display unit is k times the brightness of its adjacent display unit, where k is a first preset coefficient.

[0025] In practical applications, the coefficient k is a preset coefficient set according to the brightness difference between the frontmost or the rearmost display unit and the middle display unit in each row of the light source array.

[0026] In practical applications, the brightness of the first row and the last row of the light source array when driven by the added time-division multiplexing drive is m times that of the original drive, where m is a second preset coefficient.

[0027] In practical applications, the coefficient m is a preset coefficient set according to the brightness difference between the display units in the first row or the last row and the middle display units in the light source array.

[0028] In practical applications, the time-division multiplexing driving added to the first row and the last row of the light source array is driven simultaneously by a driving chip.

[0029] In practical applications, the display unit is a light emitting diode.

[0030] By adding a column of supplementary display units on the left and right sides, when driven, the brightness of the supplementary display unit is a factor of k times that of its left or right display unit, so that the brightness on both sides of the left and right edges is increased to be approximately equal to the brightness in the middle.

[0031] By adding a time-division multiplexing drive to the top row and the bottom row, when the time-division multiplexing drive is added, the brightness value is m times (m is a coefficient) of the original driving value, so that the brightness on both sides of the upper and lower edges is increased to be equal to the brightness in the middle. The brightness of the edge of the display panel can be increased, so that the brightness of the display area of ​​the display panel is uniform.

[0032] Embodiment 2

[0033] like Figure 3 As shown, a display device comprises: a display panel, wherein the display panel comprises a light source array composed of a plurality of display unit arrays, a driving chip and a plurality of scanning lines, wherein the display units are connected to the driving chip via scanning lines, and a supplementary display unit is respectively arranged at the front end and the end end of each row of the light source array, so that the brightness of the front end and the end edge of each row of the display area source array is consistent with the middle; and the first row and the last row of the light source array are respectively arranged with an added time-division multiplexing drive, so that the brightness of the first row and the last row of the display area light source array is consistent with the middle.

[0034] In practical applications, the brightness of the supplementary display unit is k times the brightness of its adjacent display unit, where k is a first preset coefficient.

[0035] In practical applications, the coefficient k is a preset coefficient set according to the brightness difference between the frontmost or the rearmost display unit and the middle display unit in each row of the light source array.

[0036] In practical applications, the brightness of the first row and the last row of the light source array when driven by the added time-division multiplexing drive is m times that of the original drive, where m is a second preset coefficient.

[0037] In practical applications, the coefficient m is a preset coefficient set according to the brightness difference between the display units in the first row or the last row and the middle display units in the light source array.

[0038] In practical applications, the time-division multiplexing driving added to the first row and the last row of the light source array is driven simultaneously by a driving chip.

[0039] In practical applications, the display unit is a light emitting diode.

[0040] By adding a column of supplementary display units on the left and right sides, when driven, the brightness of the supplementary display unit is a factor of k times that of its left or right display unit, so that the brightness on both sides of the left and right edges is increased to be approximately equal to the brightness in the middle.

[0041] By adding a time-division multiplexing drive to the top row and the bottom row, when the time-division multiplexing drive is added, the brightness value is m times (m is a coefficient) of the original driving value, so that the brightness on both sides of the upper and lower edges is increased to be equal to the brightness in the middle. The brightness of the edge of the display panel can be increased, so that the brightness of the display area of ​​the display panel is uniform.

[0042] Embodiment 3

[0043] like Figure 3 As shown, a display terminal includes a display device, and the display device includes: a display panel, the display panel includes a light source array composed of a plurality of display unit arrays, a driving chip and a plurality of scanning lines, the display units are connected to the driving chip via scanning lines, a supplementary display unit is respectively configured at the front end and the end end of each row of the light source array, so that the brightness of the front end and the end edge of each row of the display area source array is consistent with the middle; the first row and the last row of the light source array are respectively configured with an added time-division multiplexing drive, so that the brightness of the first row and the last row of the display area light source array is consistent with the middle.

[0044] In practical applications, the brightness of the supplementary display unit is k times the brightness of its adjacent display unit, where k is a first preset coefficient.

[0045] In practical applications, the coefficient k is a preset coefficient set according to the brightness difference between the frontmost or the rearmost display unit and the middle display unit in each row of the light source array.

[0046] In practical applications, the brightness of the first row and the last row of the light source array when driven by the added time-division multiplexing drive is m times that of the original drive, where m is a second preset coefficient.

[0047] In practical applications, the coefficient m is a preset coefficient set according to the brightness difference between the display units in the first row or the last row and the middle display units in the light source array.

[0048] In practical applications, the time-division multiplexing driving added to the first row and the last row of the light source array is driven simultaneously by a driving chip.

[0049] In practical applications, the display unit is a light emitting diode.

[0050] By adding a column of supplementary display units on the left and right sides, when driven, the brightness of the supplementary display unit is a factor of k times that of its left or right display unit, so that the brightness on both sides of the left and right edges is increased to be approximately equal to the brightness in the middle.

[0051] By adding a time-division multiplexing drive to the top row and the bottom row, when the time-division multiplexing drive is added, the brightness value is m times (m is a coefficient) of the original driving value, so that the brightness on both sides of the upper and lower edges is increased to be equal to the brightness in the middle. The brightness of the edge of the display panel can be increased, so that the brightness of the display area of ​​the display panel is uniform.

[0052] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, individual components and functions are optional, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of the present disclosure includes the entire scope of the claims, and all available equivalents of the claims. When used in this application, although the terms "first", "second", etc. may be used in this application to describe each element, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without changing the meaning of the description, the first element can be called the second element, and the second element can also be called the first element, as long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms "a", "an" and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variants "comprises" and / or including refer to the existence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method or device including the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0053] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. Those skilled in the art will clearly understand that for the convenience and simplicity of description, the specific working process of the above-described systems, devices and units can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0054] In the embodiments disclosed herein, the connection between nodes in the disclosed circuit connection only illustrates that the two nodes conduct current or voltage signals, and is not limited to direct wire connection. Passive components such as resistors can still be connected in series between the two nodes, or other switch devices with a set state of conduction can be added. These can be increased or decreased by engineers according to specific control requirements without changing the principles of the present invention.

[0055] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units can be only a logical function division, and there can be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

Claims

1. A method for adjusting the brightness of a display panel edge, applied to a display panel driven by a progressive scanning method, wherein the display panel comprises at least a light source array composed of a plurality of display unit arrays and a driving chip, characterized in that: The following steps are involved: A supplementary display unit is respectively arranged at the front end and the end of each row of the light source array in the display area, so that the brightness of the front end and the end edge of each row of the source array in the display area is consistent with the middle; A time-division multiplexing drive is added to the first row and the last row of the light source array in the display area respectively, so that the brightness of the first row and the last row of the light source array in the display area is consistent with that of the middle row.

2. The method for adjusting the brightness of a display panel edge according to claim 1, characterized in that: The brightness of the supplementary display unit is k times the brightness of its adjacent display unit, where k is a first preset coefficient.

3. The method for adjusting the brightness of the display panel edge according to claim 2, characterized in that: The coefficient k is a preset coefficient set according to the brightness difference between the frontmost or the endmost display unit and the middle display unit in each row of the light source array.

4. The method for adjusting the edge brightness of a display panel according to claim 1, characterized in that: The brightness of the first row and the last row of the light source array when driven by the added time-division multiplexing drive is m times of the original drive, where m is a second preset coefficient.

5. The method for adjusting the edge brightness of a display panel according to claim 4, characterized in that: The coefficient m is a preset coefficient set according to the brightness difference between the display units in the first row or the last row and the middle display units in the light source array.

6. The method for adjusting the brightness of a display panel edge according to any one of claims 1 to 5, characterized in that: The time-division multiplexing driving added to the first row and the last row of the light source array is driven simultaneously by a driving chip.

7. The method for adjusting the edge brightness of a display panel according to claim 6, characterized in that: The display unit is a light emitting diode.

8. A display device comprising: A display panel, the display panel comprising a light source array composed of a plurality of display unit arrays, a driving chip and a plurality of scanning lines, the display units being connected to the driving chip via scanning lines, characterized in that a supplementary display unit is respectively arranged at the front end and the end end of each row of the light source array, so that the brightness of the front end and the end edge of each row of the display area source array is consistent with the middle; the first row and the last row of the light source array are respectively arranged with an added time-division multiplexing drive, so that the brightness of the first row and the last row of the display area light source array is consistent with the middle.

9. The display device according to claim 8, characterized in that The display unit is a light emitting diode.

10. A display terminal, characterized in that: The present invention comprises the display device as described in claims 8 to 9.

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