CN115497415A - Display module, brightness adjusting method thereof and display device - Google Patents
Display module, brightness adjusting method thereof and display device Download PDFInfo
- Publication number
- CN115497415A CN115497415A CN202210784223.6A CN202210784223A CN115497415A CN 115497415 A CN115497415 A CN 115497415A CN 202210784223 A CN202210784223 A CN 202210784223A CN 115497415 A CN115497415 A CN 115497415A
- Authority
- CN
- China
- Prior art keywords
- light
- display module
- driving chip
- light emitting
- photosensitive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000006698 induction Effects 0.000 claims abstract description 13
- 206010070834 Sensitisation Diseases 0.000 claims 1
- 230000008313 sensitization Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 18
- 235000019557 luminance Nutrition 0.000 description 16
- 230000000007 visual effect Effects 0.000 description 12
- 239000003086 colorant Substances 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention discloses a display module, a brightness adjusting method thereof and a display device, wherein the display module comprises at least three groups of first photosensitive elements, a plurality of light-emitting elements and a driving chip, and the driving chip is electrically connected with the first photosensitive elements and the light-emitting elements respectively; the first photosensitive element is used for receiving the detection light reflected by the observation main body and feeding back the induction information to the driving chip according to the detection light, and the driving chip is used for determining the relative position information of the observation main body and the display module according to the induction information and adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information. According to the embodiment of the invention, the first photosensitive element is arranged to receive the detection light reflected by the observation main body and feed back the sensing information to the driving chip according to the detection light, and the driving chip adjusts the brightness of the light-emitting elements at different positions according to the sensing information, so that the display module can realize the uniformity of display at different viewing angles, and the display effect of the display module is improved.
Description
Technical Field
The embodiment of the invention relates to a display technology, in particular to a display module, a brightness adjusting method of the display module and a display device.
Background
With the development of display technology, display screens have been widely used in the production and life of people. Taking a mobile phone as an example, a smart phone is more and more widely used and has more and more functions, and has become a necessary electronic device for people's daily life.
Although there are many advantages to products having display screens, there are problems with existing display screens, such as color differences at different viewing angles.
Disclosure of Invention
The invention provides a display module, a brightness adjusting method thereof and a display device.
In a first aspect, an embodiment of the present invention provides a display module, which includes at least three groups of first photosensitive elements, a plurality of light emitting elements, and a driving chip, where the driving chip is electrically connected to the first photosensitive elements and the light emitting elements, respectively;
the first photosensitive element is used for receiving detection light reflected by the observation main body and feeding back induction information to the driving chip according to the detection light, and the driving chip is used for determining relative position information of the observation main body and the display module according to the induction information and adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information.
In a second aspect, an embodiment of the present invention provides a brightness adjustment method for a display module, applied to a display module in any one of first directions, the brightness adjustment method including:
acquiring sensing information fed back by the first photosensitive chip;
determining the relative position information of the observation main body and the display module according to the induction information;
and adjusting the light emitting brightness of the light emitting elements at different positions according to the relative position information.
In a second aspect, an embodiment of the present invention provides a display device, including the display module according to any one of the first aspects.
The embodiment of the invention provides a display module which comprises at least three groups of first photosensitive elements, a plurality of light-emitting elements and a driving chip. Wherein, first photosensitive element is used for receiving the survey light of observing the main part reflection and feeds back response information to drive chip according to survey light to drive chip is connected with first photosensitive element electricity, and drive chip can confirm the relative position information of observing main part and display module according to response information. The driver chip is still connected with the light emitting component electricity, and the driver chip guarantees that display module assembly under different visual angles, and the homogeneity that the homoenergetic shows promotes display module assembly's display effect according to the luminous luminance of the light emitting component of relative position information regulation different positions.
Drawings
Fig. 1 is a schematic view of a field angle of a light-emitting element provided in the prior art;
FIG. 2 is a schematic view of an alternative light-emitting device in the prior art;
fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present invention;
FIG. 4 is a schematic view of a structure taken along line AA' of FIG. 3;
fig. 5 is a schematic view of an angle of view of a light-emitting device according to an embodiment of the invention;
fig. 6 is a trend table of luminance adjustment of a light emitting device according to an embodiment of the present invention;
FIG. 7 is a schematic view of another display module according to an embodiment of the present disclosure;
FIG. 8 is a schematic view of a structure of FIG. 7 taken along line BB';
FIG. 9 is a schematic view of another display module according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of another display module according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another display module according to an embodiment of the disclosure;
fig. 12 is a schematic structural view of another display module according to an embodiment of the disclosure;
fig. 13 is a schematic structural diagram of another display module according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of another display module according to an embodiment of the disclosure;
fig. 15 is a schematic structural diagram of another display module according to an embodiment of the disclosure;
fig. 16 is a schematic structural diagram of another display module according to an embodiment of the disclosure;
fig. 17 is a schematic flowchart illustrating a brightness adjustment method of a display module according to an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. It should be noted that the embodiments provided in the embodiments of the present invention can be combined with each other without contradiction.
Fig. 1 is a schematic view of a field angle of a light emitting element provided in the related art, fig. 2 is a schematic view of a field angle of another light emitting element provided in the related art, fig. 1 and 2 show that the light emitting element may include a red light emitting element, a green light emitting element, and a blue light emitting element, and fig. 1 and 2 show that chromaticity of light emitting elements of different colors differs at different light emitting viewing angles a, exemplarily, a light emitting viewing angle of a light emitting element of one color in fig. 1 is a1, where a1 ranges from about 140 ° to 145 °, a light emitting viewing angle of a light emitting element of another color in fig. 2 is a2, where a1 ranges from about 135 ° to 140 °, where regions surrounded by regions m1 and m2 in fig. 1 and 2 show a case of light emitting luminance of the light emitting element, for example, when exceeding plus or minus 60 °, the regions m1 and m2 are smaller than the regions m1 and m2 at a viewing angle of 0 °, that is, the light emitting luminance of the light emitting element becomes larger as its light emitting viewing angle a. Therefore, the range of the light-emitting viewing angle a of different light-emitting elements is different, that is, under the condition that the observation main body is located at the larger light-emitting viewing angle a of the light-emitting elements with different colors, the colors of the different light-emitting elements acquired by the observation main body are not balanced, that is, the display module has the condition of poor display effect.
In order to solve the above technical problem, an embodiment of the present invention provides a display module, where the display module includes at least three groups of first photosensitive elements, a plurality of light emitting elements, and a driving chip, where the driving chip is electrically connected to the first photosensitive elements and the light emitting elements respectively; the first photosensitive element is used for receiving the detection light reflected by the observation main body and feeding back the induction information to the driving chip according to the detection light, and the driving chip is used for determining the relative position information of the observation main body and the display module according to the induction information and adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information. The brightness of the light-emitting element with the smaller light-emitting visual angle is compensated and adjusted, namely, after the light-emitting element with the smaller light-emitting visual angle is adjusted, the brightness of the light-emitting element with the larger light-emitting visual angle is similar to that of the light-emitting element with the larger light-emitting visual angle under different light-emitting visual angles, namely, the brightness of different light-emitting elements under different light-emitting visual angles is ensured to have uniformity, and the integral color uniformity of the display module is improved.
Fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of fig. 3 along a cross-sectional line AA', fig. 5 is a schematic view of a viewing angle of a light emitting device according to an embodiment of the present invention, which is shown in fig. 3 to fig. 5, the display module 10 according to an embodiment of the present invention includes at least three sets of first photosensitive devices 100, a plurality of light emitting devices 200, and a driving chip 300, and the driving chip 300 is electrically connected to the first photosensitive devices 100 and the light emitting devices 200, respectively; the first photosensitive element 100 is configured to receive the detection light reflected by the observation main body 20 and feed back sensing information to the driving chip 300 according to the detection light, and the driving chip 300 is configured to determine the relative position information between the observation main body 20 and the display module 10 according to the sensing information and adjust the light emitting brightness of the light emitting elements 200 at different positions according to the relative position information.
Specifically, the display module 10 includes a plurality of light emitting elements 200, and only 3 light emitting elements 200 are illustrated in fig. 2, where the light emitting elements 200 may include light emitting diodes, and may also be electronic elements such as Mini LEDs and Micro LEDs, which is not limited in this embodiment of the present invention.
Further, the light emitting elements 200 may include a red light emitting element, a green light emitting element, and a blue light emitting element, and the chromaticity of the light emitting elements 200 with different colors under different light emitting viewing angles a is different, that is, the display module 10 has a poor display effect. In order to solve the above technical problem, compensation adjustment of brightness is performed on the light emitting element 200 with a smaller light emitting viewing angle a, as shown in an area m3 in fig. 5, where the area m3 is a dark and bright light emitting degree at a different light emitting viewing angle a compared with the light emitting element 200 after adjustment of the area m 2. After the light emitting device 200 with the smaller light emitting viewing angle a is adjusted, the light emitting luminance of the light emitting device 200 with the larger light emitting viewing angle a is similar to that of the light emitting device 200 with the different light emitting viewing angle a, that is, the light emitting luminance of m1 in fig. 1 is similar to that of m3 in fig. 3, that is, the luminance of the different light emitting devices 200 with the larger light emitting viewing angle a is ensured to have uniformity, that is, the color uniformity of the whole display module 10 is improved.
Specifically, as shown in fig. 3, the display module 10 includes a first photosensitive element 100 and a driving chip 300, specifically, the first photosensitive element 100 is used for acquiring the light reflected by the observation main body 20, and the first photosensitive element 100 may be a light sensor. The first photosensitive element 100 is electrically connected to the driving chip 300, that is, the first photosensitive element 100 transmits the acquired light information of the observation main body 20 to the driving chip 300, where the light information is sensing information generated by the first photosensitive element 100 acquiring the detection light reflected by the observation main body 20, and the driving chip 300 can determine the relative position between the observation main body 20 and the display module 10 based on the sensing information fed back by the first photosensitive element 100. Further, the first photosensitive element 100 may include a plurality of photosensitive units (not specifically shown in the drawings) arranged in an array, which is not specifically limited by the embodiment of the present invention.
Specifically, the display module 10 includes at least three first photosensitive elements 100, that is, under the condition that the display module is provided with three first photosensitive elements 100, the obtained different light information of the observation main body 20 is transmitted to the driving chip 300 by the plurality of first photosensitive elements 100, and the driving chip 300 can accurately determine the relative position between the observation main body 20 and the display module 10 based on the different light information. For example, if the display module 10 has two first photosensitive elements 100, when the observation main body 20 is located at the midperpendicular of the two first photosensitive elements 100, that is, the distance between the observation main body 20 and the two first photosensitive elements 100 is the same, the light information transmitted from the two first photosensitive elements 100 to the driving chip 300 is the same, that is, the driving chip 300 cannot accurately determine the relative position between the observation main body 20 and the display module 10, and the display module 10 has three first photosensitive elements 100, the above situation does not occur. In other words, if the distance between the observation main body 20 and two first photosensitive elements 100 is the same, the position of the observation main body 20 may be a plane, and a specific accurate position cannot be determined, and if the distance between the observation main body 20 and three first photosensitive elements 100 is the same, the position of the observation main body 20 may be a point position, and a specific accurate position may be determined. Therefore, the display module 10 includes at least three first photosensitive elements 100, but the number of the first photosensitive elements 100 may be increased in order to more accurately determine the relative position between the observation main body 20 and the display module 10 by the driving chip 300, which is not specifically limited in the embodiment of the present invention.
Further, the driving chip 300 is electrically connected to the light emitting elements 200, that is, the driving chip 300 is used for determining the relative position information between the observation main body 20 and the display module 10 according to the sensing information, and adjusting the light emitting brightness of the light emitting elements 200 at different positions according to the relative position information. For example, the observation main body 20 is located at a certain relative position of the display module 10, that is, the observation main body 20 is located at a large viewing angle of the light emitting elements 200, the light emitting elements 200 with a large light emitting viewing angle range can provide sufficient brightness, the light emitting elements 200 with a small light emitting viewing angle range provide less brightness, and the brightness of the corresponding light emitting elements 200 is compensated by the driving chip 300, that is, the observation main body 20 is ensured to ensure that the display module 10 can have an optimal display effect at different viewing angles.
To sum up, in the display module provided in the embodiment of the present invention, the first photosensitive element is configured to receive the detection light reflected by the observation main body and feed back the sensing information to the driving chip according to the detection light, and the driving chip is electrically connected to the first photosensitive element, and the driving chip can determine the relative position information between the observation main body and the display module according to the sensing information. The driving chip is further electrically connected with the light-emitting element, the driving chip adjusts the light-emitting brightness of the light-emitting element at different positions according to the relative position information, the uniformity of display can be achieved by the display module under different visual angles, and the display effect of the display module is improved.
Optionally, the light emitting device 200 includes a red light emitting device, and the light emitting brightness of the red light emitting device is different at different viewing angles.
Specifically, in the actual light emitting device 200, the light emitting viewing angle range of the red light emitting device is generally smaller than the light emitting viewing angle range of the green or blue light emitting device, that is, the light emitting viewing angle range a1 in fig. 1 is regarded as the light emitting viewing angle range a of the green or blue light emitting device, and the light emitting viewing angle range a2 in fig. 5 is regarded as the light emitting viewing angle range a of the red light emitting device, and in a larger viewing angle, the light emitting luminance of the red light emitting device is lower than the luminance of the light emitting devices of other colors, that is, the light emitting luminance of the red light emitting device is adjusted. In other words, the light emitting viewing angle range of the red light emitting device is small, that is, the luminance difference of the red light emitting device is obvious under different viewing angles, which is not specifically limited in the embodiment of the present invention.
With continued reference to fig. 3 and 4, the display module 10 further includes a driving circuit 210, which includes data signal lines electrically connected to the driving chip 300 and the light emitting elements 200, respectively; the driving chip 300 is used for adjusting data signals of the light emitting elements 200 at different positions according to the relative position information.
The display module 10 further includes a driving substrate 220, and the light emitting device 200 is disposed on one side of the driving substrate 220 and electrically connected to the driving substrate 220. Specifically, the driving substrate 220 includes a substrate 221 and a driving circuit 210, and the driving circuit 210 is electrically connected to the light emitting element 200, and drives the light emitting element 200 to emit light based on the data signal provided by the driving chip 300.
Illustratively, referring to fig. 4, the driving circuit 210 may include at least one thin film transistor 210A, and the thin film transistor 210A includes an active drain electrode 211, a gate electrode 213, and an active layer 212. The electrode structure 240 of the light emitting device 200 is electrically connected to the connection structure 230, wherein the source/drain 211 is a data signal line, and the driving chip 300 is used for adjusting data signals, i.e. power voltage signals, of the light emitting device 200 at different positions according to the relative position information. The data signal lines in the driving circuit 210 drive the light emitting elements 200 to achieve different light emitting luminances by sending different power voltage signals to the light emitting elements 200. That is, the driving chip 300 determines the relative position information between the observation main body 20 and the display module 10 based on the sensing information fed back by the plurality of first photosensitive elements 100, and adjusts the data signals of the light emitting elements 200 at different positions according to the relative position information, so as to adjust the brightness of the light emitting elements 200 at different positions, that is, compensate the brightness of the corresponding light emitting elements 200, that is, ensure that the observation main body 20 can ensure the optimal display effect of the display module 10 at different viewing angles.
Fig. 6 is a trend chart of luminance adjustment of a light emitting device according to an embodiment of the present invention, and referring to fig. 3, fig. 4 and fig. 6, the light emitting device 200 includes a first light emitting device 200A and a second light emitting device 200B with the same light emitting color, the observation subject 20 is located at a first light emitting viewing angle B1 of the first light emitting device 200A and at a second light emitting viewing angle B2 of the second light emitting device 200B, and the first light emitting viewing angle B1 is smaller than the second light emitting viewing angle B2; the driving chip 300 is used for adjusting the brightness of the second light emitting element 200A to be greater than the brightness of the first light emitting element 200B.
As shown in fig. 4, the light emitting elements 200 include a first light emitting element 200A and a second light emitting element 200B having the same emission color, for example, the first light emitting element 200A and the second light emitting element 200B are both red light emitting elements, and a third light emitting element 200C having the same emission color or different emission colors may exist between the first light emitting element 200A and the second light emitting element 200B, the emission color of the third light emitting element 200C is not limited in the embodiment of the present invention, and a plurality of third light emitting elements 200C may exist between the first light emitting element 200A and the second light emitting element 200B, and the number of the third light emitting elements 200C is not specifically limited in the embodiment of the present invention.
Further, as shown in fig. 4, the observation main body 20 is located at the first light-emitting viewing angle B1 of the first light-emitting element 200A, and the observation main body 20 is also located at the second light-emitting viewing angle B2 of the second light-emitting element 200B, for example, the first light-emitting viewing angle B1 is 45 °, the second light-emitting viewing angle B2 is 75 °, and the numerical values thereof are not particularly limited in the embodiment of the present invention. As shown in fig. 4, the first light-emitting viewing angle B1 is smaller than the second light-emitting viewing angle B2, i.e., the first light-emitting element 200A is closer to the observation subject 20 than the second light-emitting element 200B. In other words, the viewing angle of the light emitting element 200 received by the observation body 20 is different from the position of the observation body 20. For example, the light emitting elements 200 closer to the observation subject 20 receive a smaller light emitting angle of view of the light emitting elements 200, and the light emitting elements 200 farther from the observation subject 20 receive a larger light emitting angle of view of the light emitting elements 200.
Further, the range of the light-emitting viewing angle a inherent to the light-emitting element 200 is fixed, and the light-emitting luminance decreases as the light-emitting viewing angle a at which the observation body 20 receives the light-emitting element 200 increases. Meanwhile, the size of the first light emission viewing angle B1 of the first light emitting element 200A and the size of the second light emission viewing angle B2 of the second light emitting element 200B are determined based on the observing subject 20, and may be equivalent to the light emission viewing angle a of the light emitting element 200. The relative position relationship between the observation main body 20 and the display module 10 is determined by the driving chip 300, so that the first light-emitting visual angle b1 or the second light-emitting visual angle b2 between the observation main body 20 and different light-emitting elements 200 can be determined, namely, the far-near relationship between the observation main body 20 and the light-emitting elements 200 is determined, then, the driving chip 300 is used for compensating the brightness of the light-emitting elements 200 at different positions, and the observation main body 20 is ensured to be under different visual angles, and the display module 10 can be ensured to have the best display effect.
Exemplarily, referring to fig. 6, when the light emitting viewing angle is a positive angle, the first light emitting viewing angle b1 is greater than the second light emitting viewing angle b2, and the light emitting element 200 at the first light emitting viewing angle b1 is closer to the observation body 20 than the light emitting element 200 at the second viewing angle b2; when the light emission viewing angle is a negative angle, the third light emission viewing angle b3 is greater than the fourth light emission viewing angle b4, and the light emitting element 200 at the third light emission viewing angle b3 is closer to the observation subject 20 than the light emitting element 200 at the fourth viewing angle b 4. Specifically, based on the judgment of the first light-emitting viewing angle B1 and the second light-emitting viewing angle B2, the brightness of the first light-emitting element 200A closer to the observation main body 20 is greater than the brightness of the second light-emitting element 200B farther from the observation main body 20, so that the driving chip 200 performs a greater degree of brightness compensation, i.e., a greater adjustment coefficient, on the second light-emitting element 200B, thereby ensuring the optimal display effect of the display module 10.
Fig. 7 is a schematic structural diagram of another display module according to an embodiment of the invention, fig. 8 is a schematic structural diagram of fig. 7 along a cross-sectional line BB', and referring to fig. 7 and 8, the display module 10 further includes an identification light source 400; the recognition light source 400 is used for emitting recognition light; the first photosensitive element 100 is used for receiving the detection light reflected by the observation main body 20 based on the identification light source 400.
The display module 10 further includes an identification light source 400, the identification light source 400 can emit identification light and transmit the identification light to the observation main body 20, and the observation main body 20 generates detection light based on the identification light and transmits the detection light to the first photosensitive element 100. By arranging the identification light source 400, the first photosensitive element 100 can be ensured to acquire the detection light reflected from the observation subject 20, that is, the situation that the first photosensitive element 100 is not favorable for acquiring the reflection light of the observation subject 20 under poor environmental conditions, for example, under dark conditions, is solved, and the acquisition efficiency of the first photosensitive element 100 on the detection light is improved.
Further, the identification light source 400 is disposed in the display module 10, and the identification light source 400 and the light emitting element 400 are disposed on the same layer.
Specifically, referring to fig. 8, the identification light source 400 may be designed in the same layer as the light emitting element 200, and the arrangement may save the manufacturing space of the display module 10, that is, the integration level of the display module 10 is higher, which is beneficial to implementing the thin design of the display module 10.
Alternatively, the recognition light source 400 includes an infrared light emitting element.
Specifically, the identification light source 400 is an infrared light emitting element, that is, the identification light emitted by the identification light source 400 is an infrared identification light, and the infrared identification light does not interfere with the light emitted by other light emitting elements 200 in the display module 10. Meanwhile, the infrared identification light is transmitted to the observation main body 20 to reflect the infrared detection light, and when the first photosensitive element 100 is an infrared photosensitive element, the position of the observation main body 20 is judged more accurately. Furthermore, the infrared rays do not cause damage to human skin and the like.
With continued reference to fig. 4, the display module 10 further includes a driving circuit 210; the driving circuit 210 and the first photosensitive element 100 are disposed in a staggered manner along the thickness direction h of the display module 10.
Specifically, stagger drive circuit 210 and first photosensitive element 100 and set up, can avoid some translucent or opaque metal film layers that exist in drive circuit 210 to the sheltering from of first photosensitive element 100, guarantee that first photosensitive element 100 can acquire sufficient detection light to observing the acquisition of main part 20 reflection's detection light, guarantee that first photosensitive element 100 can acquire sufficient detection light, guarantee that the relative position of observing main part 20 and display module 100 detects the accuracy.
Fig. 9 is a schematic structural view of another display module according to an embodiment of the present invention, and referring to fig. 7 to 9, at least three groups of the first photosensitive elements 100 are disposed around the identification light source 400.
Among them, the plurality of sets of first photosensitive elements 100 are disposed around the recognition light source 400, that is, it is ensured that the first photosensitive elements 100 can acquire the detection light reflected by the observation main body 20 more quickly and accurately. Specifically, each group of the photosensitive elements 100 may include a plurality of light sensing units (not specifically shown) arranged in an array, which is not specifically limited in the embodiment of the present invention.
Further, at least three sets of first photosensitive elements 100 are disposed around the recognition light source 400, that is, under the condition that three sets of first photosensitive elements 100 surround the recognition light source 400, the detection light reflected by the observation main body 20 and obtained by the first photosensitive elements 100 can be ensured, and the driving chip 300 can determine the position of the observation main body 20. Exemplarily, when two sets of first photosensitive elements 100 surround the recognition light source 400 in the display module 10, and under the condition that the distances between the two first photosensitive elements 100 and the recognition light source 400 are the same, when the observation main body 20 is located above the recognition light source 400, the detection light reflected by the observation main body 20 can be more accurately obtained by adding one set of first photosensitive elements 100, and it is ensured that the driving chip 300 can accurately determine the position of the observation main body 20. However, in order to determine the relative position between the observation main body 20 and the display module 10 more accurately by the driving chip 300, the number of the first photosensitive elements 100 surrounding the identification light source 400 may be increased, for example, as shown in fig. 7, which is not limited in this embodiment of the invention.
Fig. 10 is a schematic structural view of another display module according to an embodiment of the present invention, and referring to fig. 10, the display module 10 includes at least two first photosensitive element groups 100A and 100B, and the first photosensitive element groups 100A and 100B include a plurality of first photosensitive elements 100; the pitches between the different first photosensitive element groups 100A or 100B and the recognition light sources 400 are different; in the same first photosensitive element group 100A or 100B, the pitches between the plurality of first photosensitive elements 100 and the recognition light sources 400 are the same.
For example, fig. 10 illustrates two sets of first photosensitive element groups 100A and 100B, where the first photosensitive element group 100A includes two first photosensitive elements 100, and the first photosensitive element group 100A includes two first photosensitive elements 100. With continued reference to fig. 10, the distance between the first photosensitive element group 100A and the identification light source 400 is L1, the distance between the first photosensitive element group 100B and the identification light source 400 is L2, and L1 is not equal to L2, that is, there are different distances between different first photosensitive element groups and the identification light source 400. Meanwhile, in the first photosensitive element group 100A, the distances between all the first photosensitive elements 100 and the identification light source 400 are all L1; in the first photosensitive element group 100B, the distances between all the first photosensitive elements 100 and the identification light source 400 are L2. Through setting up two sets of first photosensitive element group 100A and 100B, or more first photosensitive element group, can promote first photosensitive element 100 and acquire the measuring light of observing main part 20 reflection, promote the accuracy of confirming the position relation between observation main part 20 and the display module assembly 10.
Fig. 11 is a schematic structural diagram of another display module according to an embodiment of the present invention, and fig. 12 is a schematic structural diagram of another display module according to an embodiment of the present invention, and referring to fig. 10 to 12, the display module 10 according to an embodiment of the present invention meets various requirements of the display module 10 by providing a plurality of first photosensitive element groups in a distribution manner, and providing a plurality of first photosensitive elements 100 in the first photosensitive element groups, as shown in fig. 11 and 12.
Fig. 13 is a schematic structural view of another display module according to an embodiment of the invention, and referring to fig. 13, the display module 10 includes at least two groups of identification light sources 400, and the at least two groups of identification light sources 400 are electrically connected to the driving chip 300; the driving chip 300 is further configured to control at least two groups of identification light sources 400 to be turned on alternately in sequence.
If the size of the display module 10 is large, the position relationship between the observation main body 20 and the display module 10 can be accurately determined by adding the identification light source 400. Increase discernment light source 400 simultaneously, can carry out alternate work through controlling a plurality of discernment light sources 400, promote discernment light source 400's life, and then guarantee display module assembly 10's life.
Further, referring to fig. 13, the display module 10 is described by taking two sets of identification light sources 400A and 400B as an example, and the plurality of first photosensitive elements 100 are disposed around the different identification light sources 400A and 400B. In fig. 13, the driving chip 300 is not shown, and the identification light source 400A and the identification light source 400B are both electrically connected to the driving chip 300, and the driving chip 300 controls the identification light source 400 to be alternately turned on.
Fig. 14 is a schematic structural view of another display module according to an embodiment of the present invention, and referring to fig. 14, the display module 10 further includes at least one set of second photosensitive elements 500, where the second photosensitive elements 500 are used to identify texture information of a touch subject; the second photosensitive element 500 is disposed in the same layer as the first photosensitive element 400; alternatively, the second photosensitive element 500 multiplexes the first photosensitive element 400.
The display module 10 further includes at least one set of second photosensitive element 500, where the second photosensitive element 500 is used to identify the texture information of the touch subject, that is, the second photosensitive element 500 may be a light sensor for implementing fingerprint identification, and transmits light capable of reflecting the texture information of the touch subject to the second photosensitive element 500.
Further, display module assembly 10 is including first photosensitive element 100 and second photosensitive element 500, and display module assembly 10 can be based on first photosensitive element 100 and the judgement that discernment light source 400 observed the main part 20 position promptly to adjust the luminance of light emitting component 200, display module assembly 10 can also possess fingerprint identification's function simultaneously, promotes display module assembly 10's functionality. Specifically, the first photosensitive element 100 and the second photosensitive element 500 may be disposed on the same layer, that is, the integration level of the display module 10 is higher, which is beneficial to implementing the thin design of the display module 10.
Further, the second photosensitive element 500 can multiplex the first photosensitive element 400, so as to improve the utilization rate of devices in the display module 10, and further improve the integration level of the display module 10.
Fig. 15 is a schematic structural diagram of another display module according to an embodiment of the present invention, and referring to fig. 15, a driving chip 300 includes a first driving chip 310 and a second driving chip 320, the first driving chip 310 is electrically connected to the first photosensitive element 100, and the second driving chip 320 is electrically connected to the first driving chip 310 and a light emitting element (not shown in the figure) respectively; the first driving chip 310 is configured to determine the relative position information between the observation main body 20 and the display module 10 according to the sensing information, and feed back the relative position information to the second driving chip 320; the second driving chip 320 is used for adjusting the light emitting brightness of the light emitting elements 200 at different positions according to the relative position information.
Specifically, the driving chip 300 includes a first driving chip 310 and a second driving chip 320, the first driving chip 310 is electrically connected to the first photosensitive element 100, that is, the first driving chip 310 is used for driving the first photosensitive element 100 to perform light ray identification or fingerprint identification, and the second driving chip 320 is electrically connected to the light emitting element 200, that is, the second driving chip 320 is used for driving the light emitting element 200 to display light, or adjusting the light emitting brightness of the light emitting element 200. Further, the first driving chip 310 and the second driving chip 320 are electrically connected, that is, the first driving chip 310 can acquire the sensing information generated by the first photosensitive element 100 to determine the relative position information between the observation main body 20 and the display module 10, and the second driving chip 320 can adjust the brightness of the light-emitting elements 200 at different positions, so as to ensure the overall uniform display effect of the display module 10.
Fig. 16 is a schematic structural diagram of another display module according to an embodiment of the present invention, and referring to fig. 15 and 16, the first driving chip 310 and the second driving chip 320 are independently disposed, or the first driving chip 310 and the second driving chip 320 are integrally disposed.
Specifically, referring to fig. 15, the first driving chip 310 and the second driving chip 320 are independently disposed, and the first driving chip 310 and the second driving chip 320 are electrically connected. Further, referring to fig. 16, the first driving chip 310 and the second driving chip 320 may be integrated, so as to improve the integration of the display module 10, which is beneficial to implementing the thin design of the display module 10.
Based on the same inventive concept, an embodiment of the present invention further provides a brightness adjustment method for a display module, and fig. 17 is a schematic flow diagram of the brightness adjustment method for a display module according to the embodiment of the present invention, where the brightness adjustment method includes:
and S110, acquiring sensing information fed back by the first photosensitive element.
Specifically, the first photosensitive element is used for acquiring the detection light reflected back by the observation main body, and the first photosensitive element generates the sensing information based on the detection light. First photosensitive element is connected with the driver chip electricity, and the response information transmission that will acquire to driver chip, display module's driver chip promptly acquires the response information of first photosensitive element feedback. For example, the first photosensitive element may include a plurality of photosensitive cells arranged in an array, which is not particularly limited in the embodiments of the present invention.
And S120, determining the relative position information of the observation main body and the display module according to the induction information.
Specifically, first photosensitive element is connected with the driver chip electricity, and first photosensitive element transmits the response information of the observation main part of acquireing promptly to the driver chip, and the driver chip can judge the relative position face of observation main part and display module assembly based on the response information, confirms the relative position information of observation main part and display module assembly promptly.
And S130, adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information.
Specifically, the light emitting element may include a light emitting diode, and may also be an electronic element such as a Mini LED and a Micro LED, which is not specifically limited in this embodiment of the present invention. The light emitting elements at different viewing angles have different light emitting luminances. The driving chip is used for determining the relative position information of the observation main body and the display module according to the induction information and adjusting the light emitting brightness of the light emitting elements at different positions according to the relative position information. In an exemplary embodiment, the observation main body is located in the light emitting elements at the position of the display module at a certain relative position and at a large viewing angle, the light emitting element with a large viewing angle range can provide sufficient brightness, the light emitting element with a small viewing angle range provides smaller brightness, and the brightness of the corresponding light emitting element is compensated by the driving chip, that is, the observation main body can ensure that the display module has the best display effect at different viewing angles.
In summary, according to the brightness adjustment method for the display module provided by the embodiment of the invention, the first photosensitive element is used for receiving the detection light reflected by the observation main body and feeding back the sensing information to the driving chip according to the detection light, and the driving chip is electrically connected to the first photosensitive element, and the driving chip can determine the relative position information between the observation main body and the display module according to the sensing information. The driving chip is further electrically connected with the light-emitting element, the driving chip adjusts the light-emitting brightness of the light-emitting element at different positions according to the relative position information, the uniformity of display can be achieved by the display module under different visual angles, and the display effect of the display module is improved.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 18, the display device 1 includes the display module 10 according to any embodiment of the present invention, so that the display device 1 according to the embodiment of the present invention has the technical effects of the technical solutions in any embodiment, and the explanation of the same or corresponding structures and terms as those in the embodiments is not repeated herein.
The display device 1 provided in the embodiment of the present invention may be a mobile phone as shown in fig. 18, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (16)
1. A display module is characterized by comprising at least three groups of first photosensitive elements, a plurality of light-emitting elements and a driving chip, wherein the driving chip is electrically connected with the first photosensitive elements and the light-emitting elements respectively;
the first photosensitive element is used for receiving detection light reflected by the observation main body and feeding back induction information to the driving chip according to the detection light, and the driving chip is used for determining relative position information of the observation main body and the display module according to the induction information and adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information.
2. The display module according to claim 1, further comprising a driving circuit, wherein the driving circuit comprises data signal lines, and the data signal lines are electrically connected with the driving chip and the light emitting elements respectively;
the driving chip is used for adjusting data signals of the light-emitting elements at different positions according to the relative position information.
3. The display module according to claim 1, wherein the light emitting elements comprise a first light emitting element and a second light emitting element of the same light emitting color, the observation body is located at a first light emitting viewing angle position of the first light emitting element and at a second light emitting viewing angle position of the second light emitting element, and the first light emitting viewing angle is smaller than the second light emitting viewing angle;
the driving chip is used for adjusting the brightness of the second light-emitting element to be larger than that of the first light-emitting element.
4. The display module according to claim 1, wherein the display module further comprises an identification light source;
the identification light source is used for emitting identification light;
the first photosensitive element is used for receiving detection light reflected by the observation main body based on the identification light source.
5. The display module according to claim 4, wherein at least three sets of the first photosensitive elements are disposed around the identification light source.
6. The display module according to claim 5, wherein the display module comprises at least two first photosensitive element groups, and the first photosensitive element group comprises a plurality of first photosensitive elements;
the distance between the first photosensitive element group and the identification light source is different;
in the same first photosensitive element group, the distances between the first photosensitive elements and the identification light source are the same.
7. The display module according to claim 4, wherein the display module comprises at least two groups of identification light sources, and the at least two groups of identification light sources are electrically connected to the driving chip;
the driving chip is also used for controlling at least two groups of the identification light sources to be sequentially and alternately started.
8. The display module according to claim 4, wherein the identification light source is disposed in the display module, and the identification light source and the light emitting element are disposed on the same layer.
9. The display module of claim 4, wherein the identification light source comprises an infrared light emitting element.
10. The display module according to claim 1, further comprising at least one set of second photosensitive elements for recognizing texture information of the touch subject;
the second photosensitive element and the first photosensitive element are arranged on the same layer; or the second photosensitive element multiplexes the first photosensitive element.
11. The display module according to claim 1, wherein the display module further comprises a driving circuit;
along the thickness direction of display module assembly, drive circuit with first sensitization component staggers the setting.
12. The display module of claim 1, wherein the light-emitting elements comprise red light-emitting elements, and the light-emitting brightness of the red light-emitting elements is different at different viewing angles.
13. The display module according to claim 1, wherein the driving chip comprises a first driving chip and a second driving chip, the first driving chip is electrically connected to the first photosensitive element, and the second driving chip is electrically connected to the first driving chip and the light emitting element, respectively;
the first driving chip is used for determining the relative position information of the observation main body and the display module according to the induction information and feeding back the relative position information to the second driving chip;
the second driving chip is used for adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information.
14. The display module according to claim 13, wherein the first driving chip and the second driving chip are independently disposed, or the first driving chip and the second driving chip are integrally disposed.
15. A method for adjusting brightness of a display module, which is applied to the display module according to any one of claims 1-14, the method comprising:
acquiring sensing information fed back by the first photosensitive element;
determining the relative position information of the observation main body and the display module according to the induction information;
and adjusting the light-emitting brightness of the light-emitting elements at different positions according to the relative position information.
16. A display device, comprising the display module according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784223.6A CN115497415A (en) | 2022-06-28 | 2022-06-28 | Display module, brightness adjusting method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784223.6A CN115497415A (en) | 2022-06-28 | 2022-06-28 | Display module, brightness adjusting method thereof and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115497415A true CN115497415A (en) | 2022-12-20 |
Family
ID=84467448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210784223.6A Pending CN115497415A (en) | 2022-06-28 | 2022-06-28 | Display module, brightness adjusting method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115497415A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239980A (en) * | 2018-11-28 | 2019-01-18 | 厦门天马微电子有限公司 | Backlight assembly and display device |
| CN111128027A (en) * | 2019-12-30 | 2020-05-08 | 上海天马微电子有限公司 | Display module and backlight brightness monitoring method |
| CN112201167A (en) * | 2020-10-30 | 2021-01-08 | 湖北长江新型显示产业创新中心有限公司 | Display panel, driving method thereof and display device |
| CN112909051A (en) * | 2021-01-18 | 2021-06-04 | Oppo广东移动通信有限公司 | Display screen and display device |
| WO2021147086A1 (en) * | 2020-01-23 | 2021-07-29 | 京东方科技集团股份有限公司 | Display substrate and driving method therefor, and display device |
| US11200399B1 (en) * | 2020-09-28 | 2021-12-14 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel and driving method of display panel |
-
2022
- 2022-06-28 CN CN202210784223.6A patent/CN115497415A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239980A (en) * | 2018-11-28 | 2019-01-18 | 厦门天马微电子有限公司 | Backlight assembly and display device |
| CN111128027A (en) * | 2019-12-30 | 2020-05-08 | 上海天马微电子有限公司 | Display module and backlight brightness monitoring method |
| WO2021147086A1 (en) * | 2020-01-23 | 2021-07-29 | 京东方科技集团股份有限公司 | Display substrate and driving method therefor, and display device |
| US11200399B1 (en) * | 2020-09-28 | 2021-12-14 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel and driving method of display panel |
| CN112201167A (en) * | 2020-10-30 | 2021-01-08 | 湖北长江新型显示产业创新中心有限公司 | Display panel, driving method thereof and display device |
| CN112909051A (en) * | 2021-01-18 | 2021-06-04 | Oppo广东移动通信有限公司 | Display screen and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109521605B (en) | Backlight module and display device | |
| US20230232689A1 (en) | Display panel | |
| US10733412B2 (en) | Display panel and display apparatus for fingerprint identification | |
| CN108538206B (en) | Display panel and display device | |
| US20210365656A1 (en) | Fingerprint identification module, fingerprint identification method, and display apparatus | |
| US10600851B2 (en) | Organic light-emitting display panel and organic light-emitting display device | |
| US11428987B2 (en) | Electronic device display with a backlight having light-emitting diodes and driver integrated circuits in an active area | |
| US20210151006A1 (en) | Display Screen Assembly, Electronic Device, and Method for Controlling Electronic Device | |
| CN112038379B (en) | Pixel array substrate | |
| CN110148374A (en) | Display panel | |
| CN108027116A (en) | Lighting device and display device | |
| KR20210011545A (en) | Display device | |
| US20200184183A1 (en) | Liquid crystal display device having fingerprint sensor | |
| EP3678004A1 (en) | Touch sensing unit and display device including the same | |
| WO2020140532A1 (en) | Light source module and display module | |
| KR20210010717A (en) | Display device | |
| US11003019B2 (en) | Lighting device for backlighting of display screen | |
| CN115497415A (en) | Display module, brightness adjusting method thereof and display device | |
| CN112130377A (en) | Display device and control method thereof | |
| US20230061540A1 (en) | Display apparatus, photoelectric conversion apparatus, electric equipment, illumination apparatus, moving body, and wearable device | |
| US20230275182A1 (en) | Display device | |
| EP4002813A1 (en) | Sensor positioned behind a micro-led area within an oled display | |
| CN114759054B (en) | Substrate, display panel, display device and fingerprint identification method | |
| KR20180079045A (en) | Bliquid crystal display device | |
| US11967291B1 (en) | Using content type to select brightness in direct-lit backlight units |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |