CN202275238U - Optical touch control display module - Google Patents
Optical touch control display module Download PDFInfo
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- CN202275238U CN202275238U CN2011202706444U CN201120270644U CN202275238U CN 202275238 U CN202275238 U CN 202275238U CN 2011202706444 U CN2011202706444 U CN 2011202706444U CN 201120270644 U CN201120270644 U CN 201120270644U CN 202275238 U CN202275238 U CN 202275238U
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- display module
- touch control
- optical touch
- leaded light
- plane
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Abstract
An optical touch control display module is suitable for a display component provided with a display surface. The optical touch control display module comprises at least one sensing component, a light guide component, and a light source; wherein the sensing component and the light guide component are respectively arranged at a periphery of the display surface; the light guide component is provided with at least one bend; the light source is arranged near the light guide component and emits lights towards the light guide component; the bend is arranged on a transmission path of the lights; the lights are transmitted to the display surface via the light guide component, in order to define a sensing space; and when at least one touch control object enters into the sensing space, the sensing component can sense light changes caused by the touch control object.
Description
Technical field
The utility model relates to a kind of display module, and particularly relevant for a kind of optical touch display module.
Background technology
The mode that multiple realization touch-controlling interface is arranged in the known technology.For example, some known LCD attaches one deck touch control film on panel, realize condenser type or electric resistance touch-control.Perhaps, also there is known technology that small touch control component is done in display panels.Yet, make in display panels, all can influence the light transmittance of LCD attaching one deck touch control film or touch control component that will be small on the panel, cause the optical quality decline of LCD.
Other has known technology to adopt the mode of optics sensing to judge finger or the pointer position with respect to screen.For example, these known technologies can adopt the mode of catching dim spot or bright spot (i.e. finger or pointer touching formed dim spot of screen or bright spot) to judge the position of finger.
Usually can distinguish for bright spot or dim spot can be known, and reduce the probability of sensing module erroneous judgement, can be by good and uniform light source be provided, so that the relative backlight of bright spot or dim spot is comparatively obvious.The producing method of these backlights can be provided with leaded light component and reach required effect at the periphery of the display surface of screen.The light that only light source sent can increase along with the length of leaded light component or the bending of its profile and reduce its emitting brightness, cause easily the light that is sent to before the screen inhomogeneous and cause sensor to take place can't interpretation or the situation of erroneous judgement.
The utility model content
The purpose of the utility model is to provide a kind of optical touch control display module, can in sensing space, provide to have enough brightness and uniform light.
For realizing above-mentioned purpose, the optical touch control display module that the utility model provides is applicable to a display module, and this display module has a display surface, and this optical touch control module comprises:
At least one sensing component is configured in the periphery of this display surface;
At least one leaded light component be configured in the periphery of this display surface, and this leaded light component has at least one bending; And
One light source; Be configured in by this leaded light component and and emit beam towards this leaded light component; And should bend the position on the transfer path of light; To define a sensing space, when at least one touch object got into this sensing space, this sensing component senses the light that this touch object causes to be changed light through this leaded light component and before being sent to this display surface.
Described optical touch control display module, wherein this at least one leaded light component comprises at least two parts that fit together.
Described optical touch control display module wherein should a bending joint at any two parts.
Described optical touch control display module, wherein this leaded light component is a U-shaped member of this display surface of circle segment.
Described optical touch control display module, wherein this leaded light component has the position on an angle inclined-plane of this bending place, and light changes direction of transfer through this angle inclined-plane.
Described optical touch control display module, wherein this angle inclined-plane is a lead angle plane of this leaded light component.
Described optical touch control display module, wherein folder one angle between the non-bending place of this angle inclined-plane and this leaded light component, and this angle are that 30 degree are to 60 degree.
Described optical touch control display module, wherein this angle is 45 degree.
The utility model also provides a kind of optical touch control display module, is applicable to a display module, and this display module has a display surface, and this optical touch control module comprises:
One U-shaped leaded light component, this display surface of circle segment, this U-shaped leaded light component have two incidence surfaces at both ends, an at least one exiting surface and at least one angle inclined-plane of position in the bending place in the inboard respectively;
At least one light source is configured in by this incidence surface; And
At least one sensing component; Be configured in by this display surface; Wherein this light source emits beam towards this incidence surface, and before this exiting surface is sent to this display surface, to define a sensing space; When at least one touch object got into this sensing space, this sensing component sensed the light variation that this touch object causes.
Described optical touch control display module, wherein the non-bending place of this angle inclined-plane and this leaded light component presss from both sides an angle, and this angle is that 30 degree are to 60 degree.
Described optical touch control display module, wherein this angle is 45 degree.
Described optical touch control display module, the structure that the wherein structure that is one of the forming of this U-shaped leaded light component, or at least two parts of serving as reasons is formed.
Described optical touch control display module, the wherein composition surface that is any two parts, this angle inclined-plane.
Described optical touch control display module, wherein this angle inclined-plane is the lead angle plane of this U-shaped leaded light component in the bending place.
The utility model also provides a kind of optical touch control display module, is applicable to a display module, and this display module has a display surface, and this optical touch control module comprises:
At least one sensing component is configured in the periphery of this display surface;
One leaded light bar be configured in the periphery of this display surface, and this leaded light bar has at least one angle inclined-plane; And
One light source; Be configured in an end of this leaded light bar and emit beam towards this leaded light bar; And this position, angle inclined-plane presss from both sides an angle on the transfer path of light and with the transfer path of light, light is before this leaded light bar is sent to this display surface, to define a sensing space; When at least one touch object got into this sensing space, this sensing component sensed the light variation that this touch object causes.
Described optical touch control display module, wherein angle is that 30 degree are to 60 degree.
Described optical touch control display module, wherein angle is 45 degree.
Described optical touch control display module, wherein this leaded light bar has an incidence surface and at least one exiting surface, and on the transfer path of light in this leaded light bar, this position, angle inclined-plane is between this incidence surface and this exiting surface.
Described optical touch control display module, wherein this angle inclined-plane is connected between two adjacent exiting surfaces, and those exiting surfaces and this angle inclined-plane intersect in line.
Described optical touch control display module, wherein this leaded light bar has at least one bending, and this position, angle inclined-plane is in this bending place.
Described optical touch control display module, wherein this angle inclined-plane is the lead angle plane of position in this bending place.
Described optical touch control display module, wherein this leaded light bar has the U-shaped profile.
Described optical touch control display module, wherein this leaded light bar comprises interconnective at least two parts, and this position, angle inclined-plane is in the junction of those parts.
Based on above-mentioned; The optical touch control display module of the utility model is by the reflecting surface of its leaded light component; And make light be sent to exiting surface via reflecting surface effectively than the distance light transfer path; Or be sent to the exiting surface in light transmission path footpath with bending, letting light that each exiting surface of leaded light component all can transmit enough brightness, and then improve the accuracy of the touch object of sensing component interpretation position in the touch-control space to sensing space.
Description of drawings
Fig. 1 is the vertical view according to a kind of optical touch display module of the utility model one embodiment.
Fig. 2 is the sectional view of the optical touch display module of Fig. 1 along I-I ' line.
Fig. 3 is the synoptic diagram of partial component in the optical touch display module of Fig. 1.
Fig. 4 is the sectional view of the leaded light component of Fig. 3 along J-J '.
Fig. 5 is the assembling synoptic diagram of a kind of leaded light component of another embodiment of the utility model.
Primary clustering symbol description in the accompanying drawing:
10,30 optical touch display modules; 20 touch objects; 100 optical touch modules; 110 light sources; 120 sensing components; 200 display modules; 300,500 leaded light components; 300A, 500A first parts; 300B, 500B second parts; 300C, 500C the 3rd parts; 400 reflection materials; The C1 sensing space; L1 light transmission path footpath; P1, P2 incidence surface; P3, P4, P5 exiting surface; P6, P7, P8 first reflecting surface; P9, P9A second reflecting surface; The S1 display surface; The T1 acute angle.
Embodiment
The optical touch control display module that the utility model proposes is applicable to a display module.Display module has a display surface.The optical touch control module comprises at least one sensing component, a leaded light component and a light source.Sensing component and leaded light component are configured in the periphery of display surface respectively, and wherein leaded light component has at least one bending.Light source is configured in the leaded light component side and emits beam towards leaded light component, and the bending position is on the transfer path of light.Light is sent to via leaded light component before the display surface to define a sensing space.When at least one touch object got into sensing space, sensing component sensed the light variation that touch object causes.
The utility model also proposes a kind of optical touch control display module, and it is applicable to a display module.Display module has a display surface.The optical touch control module comprises a U-shaped leaded light component, two light sources and at least one sensing component.U-shaped leaded light component circle segment display surface.The U-shaped leaded light component has two incidence surfaces at both ends, an at least one exiting surface and at least one angle inclined-plane of position in the bending place in the inboard respectively.Light source is configured in by the incidence surface.Sensing component is configured in by the display surface.Light source provides light to be sent to the U-shaped leaded light component from incidence surface, and before being sent to display surface from exiting surface, to define a sensing space.When at least one touch object got into sensing space, sensing component sensed the light variation that touch object causes.
The utility model also proposes a kind of optical touch control display module, and it is applicable to a display module.Display module has a display surface.The optical touch control module comprises at least one sensing component, a leaded light bar and a light source.Sensing component and leaded light bar are configured in the periphery of display surface.The leaded light bar has at least one angle inclined-plane.Light source is configured in an end of leaded light bar and emits beam towards the leaded light bar, and position, angle inclined-plane presss from both sides an angle on the transfer path of light and with the transfer path of light.Light before the leaded light bar is sent to display surface to define a sensing space.When at least one touch object got into sensing space, sensing component sensed the light variation that touch object causes.
For letting the above-mentioned feature and advantage of the utility model can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.
Fig. 1 is the vertical view according to a kind of optical touch display module of the utility model one embodiment.Fig. 2 is the sectional view of the optical touch display module of Fig. 1 along I-I ' line.Please be simultaneously with reference to figure 1 and Fig. 2, in the present embodiment, optical touch display module 10 comprises two optical touch modules 100, a display module 200 and a leaded light component 300.Display module 200 for example is a LCD, and it has a display surface S1, and optical touch module 100 and leaded light component 300 are configured in the periphery of display surface S1 respectively.In a preferred embodiment of the utility model; This optical touch display module 10 is applicable to the display surface S1 below 6 inch; And reach the position with respect to display surface S1 in this quantity that does not limit optical touch module 100, the deviser can suitably dispose according to the display surface S1 of different size.Each optical touch module 100 comprises a light source 110 and a sensing component 120 of mutual electrical connection; Light source 110 for example is invisible light light sources such as infrared ray; Only present embodiment is not as limit; Before the IR that it provided is sent to display surface S1 via leaded light component 300, has the area source of uniform luminance and define a sensing space C1 other formation of sensing space C1 thus with leaded light component 300.
Particularly; When touch object 20 gets into sensing space C1; Because the light that touch object 20 has changed among the sensing space C1 changes, therefore sensing component 120 can sense the light that touch object 20 reflected (or the light that is covered by touch object 20), that is because the change of light going direction; And being imaged in, it is a bright spot (or a dim spot) on sensing component 120; And then judge the position of touch object 20 in sensing space C1 in view of the above, and learn the position of touch object 20 with respect to display surface S1, and after control module (not illustrating) is carried out signal Processing, reach the effect of optical touch.
Fig. 3 is the synoptic diagram of partial component in the optical touch display module of Fig. 1.Please be simultaneously referring to figs. 1 to Fig. 3, for make sensing component 120 can be rapidly and the brightness that produced of the touch object 20 in sensing space C1 of judging rightly change, therefore provide even and certain brightness light so far sensing space C1 its necessity is just arranged.Based on above-mentioned; Leaded light component 300 is followed the demand and is a leaded light bar that is centered around the other S1 of display surface; It comprises the position the first parts 300A, the second parts 300B of both sides be connected one the 3rd parts 300C between these two parts 300A, the 300B, and formation has the U-shaped structure of two bendings.Only do not limit the length of each parts 300A to 300C at this, the deviser can be according to the external form of the display surface S1 of display module 200 in addition suitably change.
Fig. 4 is the sectional view of the leaded light component of Fig. 3 along J-J '.Please be simultaneously with reference to figure 3 and Fig. 4, at this,, be representative so only illustrate the section of the 3rd parts 300C because the first parts 300A, the second parts 300B are identical with the cross-section structure of the 3rd parts 300C.In the present embodiment; The first parts 300A and the second parts 300B have incidence surface P1, the P2 of position in the end respectively; With exiting surface P3, the P4 of position in the inboard, and the 3rd parts 300C has the position at the inboard of U-shaped structure and abut against the exiting surface P5 between exiting surface P3, the P4.Moreover; The first parts 300A, the second parts 300B and the 3rd parts 300C also have first reflecting surface P6, P7 and the P8 of position in the outside respectively; So that only can be sent to sensing space C1 from its exiting surface P3 to P5 at the light of each parts 300A to 300B, and avoid the situation of possibility light leak to take place.In view of the above, the light that light source 110 is produced gets into the first parts 300A and the second parts 300B of leaded light component 300 respectively via incidence surface P1, P2, and the center light splitter can directly be sent to sensing space C1 from exiting surface P3, P4.In addition, each parts 300A to 300C is by its outside configuration means such as (comprise then or) plated films reflection material 400, and makes part light via the first reflecting surface P6 to P8 reflection and be sent to sensing space C1 from exiting surface P3 to P5.
Exiting surface P3, P4 that it should be noted that present embodiment with respect to the light transmission path footpath of light source 110 less than the light transmission path footpath of exiting surface P5 with respect to light source 110.In other words, because present embodiment only respectively disposes a light source 110 at incidence surface P1, P2, to save the electric power and the manufacturing cost of optical touch display module 100.Putting before this; For making the light that is sent to sensing space C1 place can produce the light field of uniform luminance; Therefore except the position the first parts 300A and the second parts 300B of the relative both sides of display surface S1, need let part light be sent to sensing space C1 from the exiting surface P5 of the 3rd parts 300C.In view of this; The leaded light component 300 of present embodiment also has the second reflecting surface P9 of position in the bending place of its U-shaped structure; It is the angle inclined-plane with respect to opticpath L1 in the leaded light component 300; And the non-bending part of this angle inclined-plane and leaded light component 300 presss from both sides an angle; That is second reflecting surface P9 and the opticpath L1 of light in leaded light component 300 press from both sides an acute angle T1, letting the part light of the first parts 300A and the second parts 300B be sent to the 3rd parts 300C, and then let the light that gets into from incidence surface P1, P2 reach sensing space C1 from exiting surface P3 to P5 respectively via the second reflecting surface P9.In other words,, make light successfully be sent to the 3rd parts 300C on the angle inclined-plane of bending place (i.e. the second reflecting surface P9), to improve the probability that light is sent to the 3rd parts 300C so step down because leaded light component 300 has bending.
In the present embodiment; The scope of this acute angle T1 is that 30 degree are to 60 degree; And wherein be preferably 45 degree; Letting the part light among the first parts 300A and the second parts 300B can be sent to the 3rd parts 300C, thereby let the exiting surface P5 of the 3rd parts 300C also have the light of enough brightness to be sent to sensing space C1 with preferable reflection efficiency.In addition; Leaded light component 300 all is designed with angle inclined-plane (the second reflecting surface P9) in two bending places of its U-shaped structure; But present embodiment does not limit this; The deviser can decide position, quantity and the angle thereof of the second reflecting surface P9 in leaded light component 330 according to quantity and its light intensity that is produced of light source 110, that is in another embodiment of the utility model, leaded light component 300 also can be only therein a bending place the second reflecting surface P9 is set.
In the present embodiment; The second reflecting surface P9 comes down to form in the structure that the bending place in the outside processes the lead angle plane one-body moldedly at leaded light component 300; That is the 3rd parts 300C respectively with the intersection of the first parts 300A and the second parts 300B form with the first exiting surface P3, the second exiting surface P4 and the 3rd exiting surface P5 back to the lead angle plane, and let light reflex to the 3rd parts 300C from the first parts 300A or the second parts 300B respectively by this.In addition, as the above-mentioned first reflecting surface P6, P7 and P8, reflection material 400 also can be set on this lead angle plane (the second reflecting surface P9), to improve the reflectivity on lead angle plane (the second reflecting surface P9).
On the other hand, the utility model does not limit the generation type of leaded light component.Fig. 5 is the assembling synoptic diagram of a kind of leaded light component of another embodiment of the utility model.Please refer to Fig. 5, the situation after this describes assembling with the left side first parts 500A, and the preceding situation of assembling is described with the right side second parts 500B, contrast each other can know the formation of identification leaded light component 500 by two places.Different with the foregoing description is; First to the 3rd parts 500A to 500C of the leaded light component 500 of present embodiment separates each other; And what deserves to be mentioned is; The second reflecting surface P9A is any two adjacent components (the first parts 500A and the 3rd parts 500C; Or second parts 500B and the 3rd parts 500C) the composition surface, that is the second reflecting surface P9A and exiting surface P4, P5 intersect at same straight line (second reflecting surface P9 of opposite side and exiting surface P3, P5 also with), so let the second reflecting surface P9A can reach equally with the foregoing description in the identical reflecting effect of the second reflecting surface P9.In addition, in the embodiment that another does not illustrate, leaded light component also can be assembled by L shaped parts and a bar-like member each other, and in view of the above, the deviser can suitably arrange in pairs or groups to light source and leaded light component according to the light field demand of sensing space.
In sum; In the foregoing description of the utility model; The optical touch control display module is by the reflecting surface of its leaded light component; And make light be sent to exiting surface via reflecting surface effectively than the distance light transfer path, or be sent to the exiting surface in light transmission path footpath with bending, to let each exiting surface of leaded light component all can transmit light to the sensing space of enough brightness; Make the light field of sensing space have brightness uniformly, and then improve the accuracy of the touch object of sensing component interpretation position in the touch-control space.
Though the utility model discloses as above with embodiment; Right its is not in order to limit the utility model; Has common knowledge the knowledgeable in the technical field under any; In spirit that does not break away from the utility model and scope, when doing a little change and retouching, so the claim person of defining that the protection domain of the utility model attaches after looking is as the criterion.
Claims (23)
1. an optical touch control display module is applicable to a display module, and this display module has a display surface, it is characterized in that, this optical touch control module comprises:
At least one sensing component is configured in the periphery of this display surface;
At least one leaded light component be configured in the periphery of this display surface, and this leaded light component has at least one bending; And
One light source; Be configured in by this leaded light component and and emit beam towards this leaded light component; And should bend the position on the transfer path of light; To define a sensing space, when at least one touch object got into this sensing space, this sensing component senses the light that this touch object causes to be changed light through this leaded light component and before being sent to this display surface.
2. optical touch control display module according to claim 1 is characterized in that, wherein this at least one leaded light component comprises at least two parts that fit together.
3. optical touch control display module according to claim 2 is characterized in that, wherein should a bending joint at any two parts.
4. optical touch control display module according to claim 1 is characterized in that, wherein this leaded light component is a U-shaped member of this display surface of circle segment.
5. optical touch control display module according to claim 1 is characterized in that, wherein this leaded light component has the position on an angle inclined-plane of this bending place, and light changes direction of transfer through this angle inclined-plane.
6. optical touch control display module according to claim 5 is characterized in that, wherein this angle inclined-plane is a lead angle plane of this leaded light component.
7. optical touch control display module according to claim 5 is characterized in that, wherein folder one angle between the non-bending place of this angle inclined-plane and this leaded light component, and this angle is that 30 degree are to 60 degree.
8. optical touch control display module according to claim 7 is characterized in that, wherein this angle is 45 degree.
9. an optical touch control display module is applicable to a display module, and this display module has a display surface, it is characterized in that, this optical touch control module comprises:
One U-shaped leaded light component, this display surface of circle segment, this U-shaped leaded light component have two incidence surfaces at both ends, an at least one exiting surface and at least one angle inclined-plane of position in the bending place in the inboard respectively;
At least one light source is configured in by this incidence surface; And
At least one sensing component; Be configured in by this display surface; Wherein this light source emits beam towards this incidence surface, and before this exiting surface is sent to this display surface, to define a sensing space; When at least one touch object got into this sensing space, this sensing component sensed the light variation that this touch object causes.
10. optical touch control display module according to claim 9 is characterized in that, wherein the non-bending place of this angle inclined-plane and this leaded light component presss from both sides an angle, and this angle is that 30 degree are to 60 degree.
11. optical touch control display module according to claim 10 is characterized in that, wherein this angle is 45 degree.
12. optical touch control display module according to claim 9 is characterized in that, the structure that the wherein structure that is one of the forming of this U-shaped leaded light component, or at least two parts of serving as reasons is formed.
13. optical touch control display module according to claim 12 is characterized in that, wherein the composition surface that is any two parts, this angle inclined-plane.
14. optical touch control display module according to claim 10 is characterized in that, wherein this angle inclined-plane is the lead angle plane of this U-shaped leaded light component in the bending place.
15. an optical touch control display module is applicable to a display module, this display module has a display surface, it is characterized in that, this optical touch control module comprises:
At least one sensing component is configured in the periphery of this display surface;
One leaded light bar be configured in the periphery of this display surface, and this leaded light bar has at least one angle inclined-plane; And
One light source; Be configured in an end of this leaded light bar and emit beam towards this leaded light bar; And this position, angle inclined-plane presss from both sides an angle on the transfer path of light and with the transfer path of light, light is before this leaded light bar is sent to this display surface, to define a sensing space; When at least one touch object got into this sensing space, this sensing component sensed the light variation that this touch object causes.
16. optical touch control display module according to claim 15 is characterized in that, wherein angle is that 30 degree are to 60 degree.
17. optical touch control display module according to claim 16 is characterized in that, wherein angle is 45 degree.
18. optical touch control display module according to claim 15 is characterized in that, wherein this leaded light bar has an incidence surface and at least one exiting surface, and on the transfer path of light in this leaded light bar, this position, angle inclined-plane is between this incidence surface and this exiting surface.
19. optical touch control display module according to claim 15 is characterized in that, wherein this angle inclined-plane is connected between two adjacent exiting surfaces, and those exiting surfaces and this angle inclined-plane intersect in line.
20. optical touch control display module according to claim 15 is characterized in that, wherein this leaded light bar has at least one bending, and this position, angle inclined-plane is in this bending place.
21. optical touch control display module according to claim 20 is characterized in that, wherein this angle inclined-plane is the lead angle plane of position in this bending place.
22. optical touch control display module according to claim 20 is characterized in that, wherein this leaded light bar has the U-shaped profile.
23. optical touch control display module according to claim 20 is characterized in that, wherein this leaded light bar comprises interconnective at least two parts, and this position, angle inclined-plane is in the junction of those parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202706444U CN202275238U (en) | 2011-07-28 | 2011-07-28 | Optical touch control display module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202706444U CN202275238U (en) | 2011-07-28 | 2011-07-28 | Optical touch control display module |
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| CN202275238U true CN202275238U (en) | 2012-06-13 |
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| CN2011202706444U Expired - Fee Related CN202275238U (en) | 2011-07-28 | 2011-07-28 | Optical touch control display module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656421A (en) * | 2019-03-05 | 2019-04-19 | 京东方科技集团股份有限公司 | Display device |
| CN110083274A (en) * | 2019-04-28 | 2019-08-02 | 业成科技（成都）有限公司 | Optical touch control apparatus and its system |
-
2011
- 2011-07-28 CN CN2011202706444U patent/CN202275238U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656421A (en) * | 2019-03-05 | 2019-04-19 | 京东方科技集团股份有限公司 | Display device |
| WO2020177528A1 (en) * | 2019-03-05 | 2020-09-10 | 京东方科技集团股份有限公司 | Display apparatus |
| CN109656421B (en) * | 2019-03-05 | 2021-04-06 | 京东方科技集团股份有限公司 | Display device |
| US11573363B2 (en) | 2019-03-05 | 2023-02-07 | Boe Technology Group Co., Ltd. | Display apparatus |
| CN110083274A (en) * | 2019-04-28 | 2019-08-02 | 业成科技（成都）有限公司 | Optical touch control apparatus and its system |
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